阅读说明：本技术 罩嵌入辅具和罩嵌入方法 (Cover insertion aid and cover insertion method ) 是由 森田善昭 于 2019-07-30 设计创作，主要内容包括：本发明提供一种罩嵌入辅具和罩嵌入方法。辅具(50)具有：把手(51),其具有把持部,以及辊(60),其用于通过来自把持部的力将罩部件(15)的上表面向下侧按压。辅具(50)在其使用时具有如下形状：辊(60)的外侧板侧的端(64)位于比把手(51)的外侧板侧的端(55)靠外侧板侧的位置。如果使用辅具(50),则在将罩部件从上侧嵌入固定于基座部件从而使罩部件的卡止部卡止于基座部件的基座卡止部的乘客输送机的规格中,即使在罩部件的长度较长的情况下或者在侧壁部与基座部件之间的间隙较小的情况下,也能够容易地执行罩部件向基座部件的嵌入固定。(The invention provides a hood-insertion aid and a hood-insertion method. The auxiliary tool (50) comprises: a handle (51) having a grip portion, and a roller (60) for pressing the upper surface of the cover member (15) downward by a force from the grip portion. The aid (50) has the following shape when it is used: the end (64) of the roller (60) on the outer side plate side is positioned closer to the outer side plate side than the end (55) of the handle (51) on the outer side plate side. If the auxiliary tool (50) is used, in the specification of the passenger conveyor which is embedded and fixed on the base part from the upper side of the cover member and enables the clamping part of the cover member to be clamped on the clamping part of the base part, even if the length of the cover member is long or the gap between the side wall part and the base part is small, the embedding and fixing of the cover member on the base part can be easily executed.)

1. A cover fitting aid for fitting a cover member into a base member from the upper side so that a locking portion of the cover member is locked to a base locking portion of the base member, the base member being directly connected to an apron plate or indirectly connected thereto via a connecting member in a passenger conveyor, and the base member being arranged so as to close a gap between the apron plate and a side wall portion extending upward,

the cover-embedding aid has:

a handle having a grip portion; and

a pressing portion for pressing the upper surface of the cover member downward by a force from the holding portion,

when in use, the end of the pressing portion on the side of the side wall portion is located closer to the side of the side wall portion than the end of the handle on the side of the side wall portion.

2. The cover-insertion aid of claim 1,

the cover insertion aid has a shaft portion which is formed integrally with the handle,

the pressing portion is a roller having a receiving hole for receiving the shaft portion and rotatably attached to the shaft portion,

when the grip portion is moved in the extending direction of the upper surface in a state where the roller is in contact with the upper surface, the roller is rotationally moved.

3. The cover-insertion aid of claim 2,

a recessed portion extending substantially parallel to the shaft portion is provided in the housing hole at an end portion located on the side of the side wall portion in the use,

a front end portion of the shaft portion is received at the recess portion,

the cap insertion aid further has a nut screwed into an external thread portion provided on an outer peripheral surface of the distal end portion.

4. The cover-embedding aid of claim 2 or 3,

the peripheral region of the housing hole disposed on one axial side of the roller on the side of the side wall portion in the use includes an elastic portion having elasticity.

5. The cover-insertion aid according to any one of claims 2 to 4,

in a cross section including a central axis of the roller, there is a sharp point at which differentiation cannot be performed in an outer peripheral surface portion of the roller on a side opposite to the side wall portion side at the time of the use.

6. The cover-insertion aid of any one of claims 2 to 5,

the shape of the outer circumferential surface of the roller in a cross section including the central axis of the roller corresponds to the shape of the upper surface.

7. The cover-insertion aid of claim 1,

the pressing part is a plate-shaped part,

the thickness of the end portion of the plate-shaped portion located on the side of the side wall portion when in use is greater than the thickness of the end portion of the plate-shaped portion located on the opposite side of the side wall portion when in use.

8. The cover-insertion aid of claim 7,

the cover insertion aid has a column portion that connects the handle and the pressing portion,

the pillar portion is inclined to the side opposite to the side wall portion side as going to the upper side in the vertical direction in the use.

9. A cover fitting method for fitting a cover member into a base member from above using the cover fitting assistant according to any one of claims 1 to 8, whereby a locking portion of the cover member is locked to a base locking portion of the base member, the base member being directly connected to a skirt plate or indirectly connected via a connecting member in a passenger conveyor, and the base member being arranged so as to close a gap between the skirt plate and a side wall portion extending upward,

the cover embedding method comprises the following steps:

an end locking step of locking a locking portion at one end of the cover member to the base locking portion of the base member; and

a pressing part moving step of moving the gripping part along an extending direction of the cover member while pressing the gripping part downward after the end part locking step, thereby moving the pressing part in the extending direction of the cover member in a state where the pressing part presses the upper surface of the cover member.

Technical Field

The present invention relates to a cover insertion aid for inserting a cover member in a passenger conveyor, such as an escalator or moving walkway, into a base member. The present invention also relates to a cover fitting method for fitting a cover member into a base member using a cover fitting aid.

Background

Conventionally, there is an escalator described in patent document 1 as a passenger conveyor. The escalator has skirt boards on both sides in the width direction of the steps, the skirt boards blocking the sides of the steps and having a smooth surface, and the skirt boards are fixed to the balustrade support member via the deck base using a plurality of fixing screws. A deck cover is mounted on the upper end of the deck base. The deck cover is provided to improve the appearance of the escalator by hiding the fixing structure of the skirt board to the balustrade supporting member.

Patent document 1: japanese patent laid-open publication No. 2017-61357

In the cover member used for concealing the fixed structure of the apron like the deck cover in patent document 1, there is a cover member which is fitted and fixed to the base member from above and has a locking portion which is locked to a base locking portion of the base member. Further, in such cover members, there are cover members whose extending direction length reaches even several meters.

Here, in the case of such a specification, since the worker has to fit and fix the cover member to the base member at a plurality of positions in the extending direction of the cover member, the work of attaching the cover member to the base member becomes troublesome.

In such a specification, when the gap between the side wall portion extending upward on the side of the step and the base member is small, the cover member needs to be fitted into the minute gap at each of the plurality of positions. However, such fitting is difficult because the hand of the operator easily interferes with the side wall portion. Therefore, when the gap with the base member is small, the work of attaching the cover member to the base member is particularly troublesome.

Disclosure of Invention

Therefore, an object of the present invention is to provide a cover fitting aid and a cover fitting method that can easily perform fitting and fixing of a cover member to a base member even when the cover member is long or when a gap between a side wall portion and the base member is small in the specification of a passenger conveyor in which the cover member is fitted and fixed to the base member from above and a locking portion of the cover member is locked to a base locking portion of the base member.

In order to solve the above problem, a cover fitting aid according to the present invention is a cover fitting aid comprising: the cover member is fitted into a base member from above so that a locking portion of the cover member is locked to a base locking portion of the base member, the base member is directly connected to an apron plate or indirectly connected thereto via a connecting member in a passenger conveyor, and the base member is disposed so as to close a gap between the apron plate and a side wall portion extending upward, and the cover fitting assistant device includes: a handle having a grip portion; and a pressing portion for pressing the upper surface of the cover member downward by a force from the grip portion, wherein an end of the pressing portion on the side of the side wall is located closer to the side of the side wall than an end of the handle on the side of the side wall when the handle is used.

According to the present invention, the upper surface of the one end of the cover member can be pressed downward by the pressing portion of the cover-fitting assistant (hereinafter, simply referred to as an assistant) to which a force is applied from the holding portion in a state in which the locking portion of the one end of the cover member is locked to the base locking portion of the base member. In addition, when the holding portion is slightly moved along the extending direction of the cover member and the pressing portion is slightly moved along the extending direction of the upper surface in a state where the pressing portion presses the upper surface, a large downward force can be efficiently applied to a boundary between a fitting portion of the cover member in which the locking portion is locked to the base locking portion and a non-fitting portion of the cover member in which the locking portion is not locked to the base locking portion by the pressing portion, and the fitting at the boundary can be performed. Therefore, the fitting at the boundary can be performed sequentially and continuously by moving the pressing portion continuously in the extending direction of the cover member, and the fitting and fixing of the cover member to the base member can be performed by moving the pressing portion once from one end portion to the other end portion of the cover member with the pressing portion pressing the upper surface of the cover member. Therefore, even when the cover member is long or the gap between the side wall portion and the base member is small, the cover member can be fixed to the base member by simply moving the pressing portion along the extending direction of the cover member while pressing the holding portion downward after the locking portion at one end of the cover member is locked to the base locking portion of the base member.

Further, since the end of the pressing portion on the side of the side wall is located closer to the side of the side wall than the end of the handle on the side of the side wall when the handle is used, the handle does not contact the side wall when the pressing portion is moved in the extending direction of the cover member. Thus, the handle does not interfere with the side wall portion, so that the cover member can be smoothly fitted to the side wall portion without damaging the side wall portion by contacting the handle with the side wall portion.

In the present invention, the cover fitting aid may include a shaft portion integrally formed with the handle, the pressing portion may be a roller having a receiving hole for receiving the shaft portion and rotatably attached to the shaft portion, and the roller may be rotationally moved when the holding portion is moved in the extending direction of the upper surface in a state where the roller is in contact with the upper surface.

According to the above configuration, since the pressing portion is a rotatable roller, the pressing portion can be easily and smoothly moved on the upper surface of the cover member in the extending direction of the cover member, and the cover member can be more easily fixed to the base member by being fitted thereto.

In the present invention, the housing hole may be provided with a recessed portion extending substantially parallel to the shaft portion at an end portion located on the side of the side wall portion in the use state, the recessed portion may house a distal end portion of the shaft portion, and the cap fitting aid may further include a nut screwed into an external thread portion provided on an outer peripheral surface of the distal end portion.

According to the above configuration, the prevention structure for preventing the roller from coming off the shaft portion does not protrude further toward the side wall portion than the roller when in use. Therefore, the prevention structure does not contact with the side wall portion, and the side wall portion does not contact with the prevention structure and is not damaged during use of the auxiliary.

In the present invention, the peripheral region of the housing hole on one side in the axial direction of the roller, which is disposed on the side of the side wall portion in the use, may include an elastic portion having elasticity.

The following specifications exist in passenger conveyors: on the other hand, a large pressing force is required to fit the cover member on the side opposite to the side wall portion.

According to the above configuration, since the side wall portion of the roller can be elastically deformed upward in the height direction, the opposite side to the side wall portion of the roller can be strongly pressed downward opposite to the side wall portion. Therefore, in such a specification, fitting of the cover member on the side opposite to the side wall portion is easily performed, and fitting of the cover member to the base member can be easily performed.

In the present invention, in a cross section including the central axis of the roller, there may be a sharp point at which differentiation is not possible in an outer peripheral surface portion of the roller located on a side opposite to the side wall portion side in the use.

According to the above configuration, the tip of the roller can be brought into point contact with the upper surface of the cover member. Therefore, as compared with the case where the roller is brought into line contact with the upper surface of the cover member, the side of the cover member opposite to the side of the side wall is easily pressed strongly by the roller. Therefore, in the above specification, the fitting of the cover member into the base member can be easily and efficiently performed.

In the present invention, the shape of the outer peripheral surface of the roller in a cross section including the central axis of the roller may correspond to the shape of the upper surface.

According to the above configuration, a large force can be easily applied from the roller to the cover member efficiently, and the cover member can be easily fitted into the base member.

In the present invention, the pressing portion may be a plate-shaped portion, and a wall thickness of an end portion of the plate-shaped portion located on the side of the side wall portion in the use may be larger than a wall thickness of an end portion of the plate-shaped portion located on the opposite side of the side wall portion in the use.

According to the above configuration, when in use, the pressing portion can strongly press the side of the cover member opposite to the side of the side wall portion while the pressing portion is in contact with the side of the side wall portion of the cover member. Therefore, in a specification in which fitting of the cover member on the side opposite to the side wall portion side requires a large pressing force, fitting of the cover member to the base member can be performed easily and efficiently.

In the present invention, the cover fitting aid may include a pillar portion that connects the handle and the pressing portion, and the pillar portion may be inclined toward a side opposite to the side wall portion as going upward in a vertical direction in the use.

According to the above configuration, the side of the pressing portion opposite to the side wall portion is easily positioned lower than the side wall portion of the pressing portion in use. Therefore, it is easy to efficiently apply a force to the side of the cover member opposite to the side wall portion, and fitting of the cover member into the base member is easily and efficiently performed in the above specification.

A cover fitting method according to the present invention is a cover fitting method for fitting a cover member into a base member from above so that a locking portion of the cover member is locked to a base locking portion of the base member, the base member being directly connected to an apron plate or indirectly connected to the apron plate via a connecting member in a passenger conveyor, and the base member being disposed so as to close a gap between the apron plate and a side wall portion extending upward, the cover fitting method including the steps of: an end locking step of locking a locking portion at one end of the cover member to the base locking portion of the base member; and a pressing portion moving step of moving the holding portion along an extending direction of the cover member while pressing the holding portion downward after the end portion locking step, thereby moving the pressing portion in the extending direction of the cover member in a state where the pressing portion presses the upper surface of the cover member.

According to the present invention, the cover member can be fixed to the base member by fitting only the pressing portion is moved in the extending direction of the cover member while pressing the cover member downward by the pressing portion after the locking portion at the one end of the cover member is locked to the base locking portion of the base member. Therefore, the cover member can be easily fitted and fixed to the base member.

ADVANTAGEOUS EFFECTS OF INVENTION

According to the cover fitting aid of the present invention, in the specification of the passenger conveyor in which the cover member is fitted and fixed to the base member from the upper side and the locking portion of the cover member is locked to the base locking portion of the base member, even when the cover member is long or the gap between the side wall portion and the cover member is small, fitting and fixing of the cover member to the base member can be easily performed.

Drawings

Fig. 1 is a perspective view showing a part of an escalator capable of embedding an accessory using a cover of the present invention.

Fig. 2 is an enlarged cross-sectional view of the periphery of the cover member in a cross section when the escalator is cut by a plane including the width direction and the height direction of the steps.

Fig. 3 is an exploded perspective view of a deck assembly including an inner deck, a base member, and a cover member, and is an exploded perspective view showing a state in which an upper structure of the inner deck into which the base member is fitted is separated from the cover member.

Fig. 4 is a sectional view taken along line a-a of fig. 3.

Fig. 5 is a sectional view taken along line B-B of fig. 3.

Fig. 6 is a perspective view showing a cover insertion aid according to an embodiment of the present invention, and is a perspective view showing a periphery of a roller portion as a part thereof in a cross section.

Fig. 7 is an exploded view of the coupling portion for explaining a structure of the coupling portion of the cover fitting accessory on the shaft portion side.

Fig. 8 is a cross-sectional view of the cover-fitted auxiliary roller cut along a plane including the center axis thereof.

Fig. 9 is a sectional view taken along line D-D of fig. 8.

Fig. 10 is a sectional view taken along line E-E of fig. 8.

Fig. 11 is a front view of an auxiliary according to a modification.

Fig. 12 is a front view of an auxiliary according to another modification.

Fig. 13 is a front view of a part of an auxiliary tool according to another modification.

Fig. 14 is a plan view of the accessory according to still another modification when viewed from above in the height direction.

Description of the reference symbols

1: an escalator; 11: an outer panel; 12: a skirt board; 13: an inboard deck; 14: a base member; 14 b: a 1 st projection of the base member; 14 c: a 2 nd protrusion of the base member; 15: a cover member; 15 b: the 1 st projection of the cover member; 15 c: the 2 nd projection of the cover member; 15 d: an upper surface; 50. 150, 250, 350, 450: an auxiliary tool; 51. 151, 451: a handle; 55. 289: an end of the outer panel side of the handle in use; 60. 460: a roller; 63: a through hole (a receiving hole); 64: an end of the roller on the outer side plate side in use; 68: a recess; 77: a sharp point; 84: a shaft portion; 86: an external threaded portion; 89: a nut; 260. 360: a plate-like portion; 271: end of the plate-like portion located on the side of the side wall portion in use, 272: an end portion of the plate-like portion located on a side opposite to the side wall portion when in use; 288: an end on the side of the side wall of the plate-shaped portion when in use; 365: a pillar portion.

Detailed Description

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. In addition, when a plurality of embodiments, modifications, and the like are included below, it is assumed from the beginning that a new embodiment is constructed by appropriately combining their characteristic portions. In the following embodiments, the same components are denoted by the same reference numerals in the drawings, and redundant description thereof is omitted. In addition, the drawings include schematic drawings, and the dimensional ratios of the respective members in the longitudinal direction, the lateral direction, the height, and the like are not necessarily uniform between different drawings. In addition, hereinafter, a case where the passenger conveyor is an escalator will be described, but the passenger conveyor may be a moving walkway in which a plurality of steps are connected without a height difference. In the following description, when the terms relating to the vertical direction such as "upper", "lower", "horizontal" are used, the terms are expressed in a state where the escalator 1 is accurately set at the operation position and can be operated. In the present specification, the condition "substantially" can be satisfied if a person looks like it, for example, when a person having binocular vision of 0.7 or more (a value in a visual acuity test in japan) looks like it from a distance of 1m (meter) with naked eyes or with glasses. For example, the condition of "substantially cylindrical shape" can be satisfied roughly as long as a person looks like a cylindrical shape, for example, as long as a person with binocular vision of 0.7 or more looks like a cylindrical shape when viewed from a distance of 1m with the naked eye or with glasses. Among the constituent elements described below, constituent elements not described in the independent claims representing the uppermost concept are arbitrary constituent elements and are not essential constituent elements.

Fig. 1 is a perspective view showing a part of an escalator 1 in which a cover fitting aid (hereinafter, simply referred to as an aid) 50 of the present invention can be used, and fig. 2 is an enlarged cross-sectional view of a cover member periphery in a cross section when the escalator 1 is cut by a plane including a width direction and a height direction of a step. First, an example of an escalator 1 to which the assistive device 50 of the present invention can be applied will be described below with reference to fig. 1 and 2 and fig. 3 to 5 described later.

As shown in fig. 1, the escalator 1 includes: a step 10 that moves along an inclined path; outer panels 11 erected on both sides of the inclined road; and an outer panel fixing portion (not shown) that is disposed below the outer panel 11 and fixes the outer panel. The outer panel 11 is made of glass or a panel, for example. As shown in fig. 1 and 2, the escalator 1 includes: apron boards 12 provided closer to the inclined side than the outer boards 11; and an inner deck 13 configured to cover a gap between the upper side of the skirt 12 and the outer panel 11. As shown in fig. 2, the escalator 1 includes: a base member 14 that fixes an upper end of the inner deck 13 and is configured to cover a gap between the outer panel 11 and the inner deck 13; and a cover member 15 fixed to an upper side of the base member 14 so as to cover and conceal an upper surface of the base member 14. The inner deck 13 is an example of a connecting member, and the outer panel 11 is an example of a side wall portion extending upward.

As shown in fig. 2, the base member 14 has a recess 34 with a stepped-side opening in the width direction. The upper front end of the inner deck 13 extends in the width direction and is inserted into the recess 34, and is fixed to the base member 14 by a small screw 16 extending in the vertical direction. In the escalator 1, the upper surface of the inner deck 13 is fixed with screws, so that the side surface of the inner deck is not fixed with screws, thereby preventing user disasters (such as hooking of clothes) caused by loosening of the screws of the inner deck 13. Further, by attaching the cover member 15 to the base member 14 so as to cover and hide the upper surface of the base member 14, the screws 16 are not visible from the outside, and the appearance of the escalator 1 is improved.

Although not described in detail, the inner deck 13 includes a side wall 13a extending in the vertical direction and an inclined extension 13b extending obliquely upward from the outer side plate 11 side. A locking member 18 is fixed to the inner surface of the side wall portion 13a on the outer panel 11 side by an adhesive or the like, and a locking recess 19 is provided between the side wall portion 13a and the locking member 18. The apron 12 is fixed to the inner deck 13 by locking the upper end of the apron 12 to the locking recess 19. Although not shown, the outer panel fixing portion is fixed to a stationary portion such as a corner piece that is stationary with respect to the floor surface in the escalator 1, and the skirt 12 is also fixed to the stationary portion such as the outer panel fixing portion directly or indirectly via a member. As a result, the skirt 12, the inner deck 13, the base member 14, and the cover member 15 are stationary with respect to the floor in a state where they cannot be detached from the escalator 1.

Fig. 3 is an exploded perspective view of a deck assembly including the inner deck 13, the base member 14, and the cover member 15, and is an exploded perspective view showing a state in which an upper structure of the inner deck 13 in which the base member 14 is embedded is separated from the cover member 15. In addition, fig. 4 is a sectional view taken along line a-a of fig. 3, and fig. 5 is a sectional view taken along line B-B of fig. 3.

As shown in fig. 4, the base member 14 includes a 1 st projection 14b and a 2 nd projection 14C projecting upward from the upper surface 14a thereof, the 1 st projection 14b projecting upward from the outer side plate 11 side in the width direction indicated by the arrow C, and the 2 nd projection 14C projecting upward from the side opposite to the outer side plate 11 side in the width direction. Referring again to fig. 2, the base member 14 is smoothly connected to the upper surface of the inclined extension 13b of the inner deck 13 that moves upward as it approaches the outer panel 11, and the cover member 15 is fixed to the base member 14 from above. Therefore, in order to smoothly connect the upper surface 15d of the cover member 15 and the inclined extension 13b, as shown in fig. 4, the upper surface 15d of the cover member 15 also moves smoothly upward as going to the outer plate 11 side, and as a result, the height of the 1 st projection 14b is higher than the height of the 2 nd projection 14 c. The 1 st projection 14b has a locking portion 24b formed of a projection on the outer side plate side in the width direction of the upper end thereof, and the 2 nd projection 14c has a locking portion 24c formed of a projection on the side opposite to the outer side plate 11 side in the width direction of the upper end thereof.

The cover member 15 has a 1 st projection 15b and a 2 nd projection 15c projecting downward from a lower surface 15a thereof, and the 1 st projection 15b is higher than the 2 nd projection 15 c. The 1 st projection 15b has a locking portion 25b formed by a projection on the side opposite to the outer plate 11 side in the width direction of the lower end, and the 2 nd projection 15c has a locking portion 25c formed by a projection on the outer plate 11 side in the width direction of the lower end. The cover member 15 is fixed to the base member 14 by fitting the cover member 15 into the base member 14 from above the base member 14, so that the locking portion 25b of the 1 st projection 15b is engaged with the lower side of the locking portion 24b of the 1 st projection 14b, and the locking portion 25c of the 2 nd projection 15c is engaged with the lower side of the locking portion 24c of the 2 nd projection 14 c. Since the 1 st projections 14b and 15b are higher than the 2 nd projections 14c and 15c, the 1 st projections 14b and 15b can be easily engaged with each other, while the 2 nd projections 14c and 15c require a large force from above for engagement. The 1 st projection 15b and the 2 nd projection 15c of the cover member 15 are examples of the locking portions, and the 1 st projection 14b and the 2 nd projection 14c of the base member 14 are examples of the base locking portions.

As shown in fig. 5, the misalignment preventing member 21 is fixed to a predetermined position in the extending direction of the upper surface 14a of the base member 14 with an adhesive 38 or the like, and the misalignment preventing member 22 is fixed to a predetermined position in the extending direction of the lower surface 15a of the cover member 15 with an adhesive 39 or the like. Each of the misalignment preventing members 21 and 22 is formed of a surface fastener or the like. In a state where the cover member 15 is fixed to the base member 14, the displacement preventing members 21 and 22 are bonded to each other, thereby preventing the cover member 15 from being displaced in the extending direction. The provision of the displacement preventing members 21 and 22 also makes it difficult to fit the cover member 15 into the base member 14, and the presence of the displacement preventing members 21 and 22 requires a large force to fit the cover member 15 into the base member 14. Although not described in detail, a joint member 24 (see fig. 3) is fixed to the upper surface 14a of the base member 14. The joint member 24 is provided to hide a seam of the adjacent cover member 15, and is provided at a position corresponding to the seam on the upper surface 14a of the base member 14.

Fig. 6 is a perspective view showing the assistive device 50 of one embodiment of the present invention, and is a perspective view showing the periphery of the roller 60 as a part thereof in section. As shown in fig. 6, the auxiliary tool 50 includes a handle 51, a roller 60 as an example of a pressing portion, and a connecting portion 80. The grip 51 is formed of a substantially cylindrical round bar, and a cylindrical outer peripheral surface 52 thereof forms a grip portion. The connecting portion 80 includes a 1 st height direction extending portion 81, a width direction extending portion 82, a 2 nd height direction extending portion 83, and a shaft portion 84.

The 1 st height direction extending portion 81 has one end fixed to the handle 51 and extends from the handle 51 in a direction perpendicular to the central axis of the handle 51, and the width direction extending portion 82 extends from the 1 st height direction extending portion 81 on the opposite side of the handle 51 side in a direction substantially perpendicular to the 1 st height direction extending portion 81. The 2 nd height direction extending portion 83 extends from an end portion of the width direction extending portion 82 on the side opposite to the 1 st height direction extending portion side to the side opposite to the 1 st height direction extending portion 81 side substantially in parallel with the 1 st height direction extending portion 81. The shaft portion 84 extends from the end portion of the 2 nd height direction extending portion 83 on the side opposite to the width direction extending portion 82 side toward the width direction extending portion 82 side substantially in parallel with the width direction extending portion 82.

Fig. 7 is an exploded view illustrating the structure of the shaft portion 84 side of the connecting portion 80. As shown in fig. 7, the shaft portion 84 has, for example, a head portion 85 at one end portion and an external thread portion 86 at the other end portion. The 2 nd height direction extending portion 83 has a through hole 87. For example, the shaft portion 84 is inserted into the through hole 87 from the side opposite to the widthwise extending portion 82 side with the side of the external thread portion 86 as the leading end, and the bottom surface of the head portion 85 is fixed to the 2 nd widthwise extending portion 83 with an adhesive or the like, so that the shaft portion 84 is attached to the 2 nd widthwise extending portion 83.

As shown in fig. 6, the roller 60 is rotatably attached to the shaft 84. Next, a detailed structure of the roller 60 and a mounting structure of the roller 60 to the shaft portion 84 will be described. Fig. 8 is a sectional view when the roller 60 is cut by a plane including the center axis of the roller 60, fig. 9 is a sectional view taken along line D-D of fig. 8, and fig. 10 is a sectional view taken along line E-E of fig. 8. As shown in fig. 8, the roller 60 includes a main body 61 and a metal or resin sleeve 62.

The main body 61 has a through hole 63, and the through hole 63 includes a large-diameter hole portion 63a having a cylindrical inner peripheral surface and a small-diameter hole portion 63b having a cylindrical inner peripheral surface. The large-diameter hole 63a has an inner diameter larger than that of the small-diameter hole 63b, and the large-diameter hole 63a is connected to the small-diameter hole 63b via a step 69 extending in the radial direction. The large-diameter hole 63a and the step 69 form a recess 68 extending substantially parallel to the shaft 84.

The sleeve 62 has a cylindrical outer peripheral surface 62a and a cylindrical inner peripheral surface. The cylindrical outer peripheral surface 62a has substantially the same length as the small-diameter hole portion 63b, and is fitted into and fixed to the small-diameter hole portion 63b so as not to protrude from the small-diameter hole portion 63 b. The cylindrical outer peripheral surface 62a may be fixed to the cylindrical inner peripheral surface of the small-diameter hole portion 63b with an adhesive 67.

The main body 61 has an outer diameter side portion 71 made of metal or resin and an inner diameter side portion 72 made of an elastic body such as rubber. The inner diameter side portion 72 is disposed on the inner peripheral side of the main body 61 and includes at least a part of the inner peripheral surface of the small diameter hole portion 63 b. When viewed in the axial direction of the roller 60, the entire inner diameter side portion 72 overlaps the recess 68, and the end surface of the inner diameter side portion 72 on the recess 68 side in the axial direction constitutes a part of the bottom surface of the recess 68. As shown in fig. 8 to 10, the thickness of the inner diameter side portion 72 in the radial direction gradually becomes thinner as it goes in the axial direction from the recess 68 side to the side opposite to the recess 68 side. The portion of the inner diameter side portion 72 located at the periphery of the through hole 63 on the one axial side of the roller 60 disposed on the outer panel 11 side in use is an example of an elastic portion having elasticity.

Referring to fig. 7 and 8, the shaft portion 84 of the connecting portion 80 is inserted from the opening of the sleeve 62 of the roller 60 on the side opposite to the recessed portion 68 with the external thread portion 86 side leading, until the external thread portion 86 protrudes toward the recessed portion 68. Then, referring to fig. 7, by screwing the nut 89 into the male screw portion 86, the roller 60 is supported by the shaft portion 84 so as to be rotatable with respect to the shaft portion 84, and cannot be detached from the shaft portion 84. By screwing the nut 89, the auxiliary 50 is assembled. The through hole 63 of the main body 61 constitutes a housing hole for housing the shaft portion 84. The nut 89 is housed in the recess 68 in a state of being screwed into the male screw portion 86.

The roller 60 is rotatably supported by the shaft 84 through a bearing. Specifically, for example, a lubricant is sealed between the sleeve 62 and the shaft portion 84, and both axial end portions of the sleeve 62 and the shaft portion 84 are sealed by a known annular sealing member (not shown). Thus, an oil film is formed on the inner circumferential surface of the sleeve 62, and the sleeve 62, the oil film, and the shaft portion 84 constitute a slide bearing, and the roller 60 is rotatably supported with respect to the shaft portion 84 by the slide bearing. Alternatively, the sleeve 62 and the shaft portion 84 may constitute an oilless bearing, that is, a sliding bearing that can reduce the amount of oil supply, the number of times of oil supply, or can be used without oil supply and that retains self-lubrication, or the sleeve 62 may be rotatably supported with respect to the shaft portion 84 by a rolling bearing.

The case where the connecting portion 80 includes the 1 st height direction extending portion 81, the width direction extending portion 82, the 2 nd height direction extending portion 83, and the shaft portion 84 is described. However, the connecting portion may not have the structure shown in fig. 6, and for example, the 1 st height direction extending portion may not be parallel to the 2 nd height direction extending portion, and the width direction extending portion may not be parallel to the shaft portion. The connecting portion may have any structure as long as it has a shaft portion supporting the roller in a rotatable manner and a connecting portion connecting the shaft portion and the handle.

Further, it is preferable to set the length of the portion other than both end portions of the shaft portion 84 to be slightly longer than the axial length of the sleeve 62, since the roller 60 can be positioned with respect to the shaft portion 84 and the rotation of the roller 60 becomes smooth. After the nut 89 is screwed in, the nut 89 may be fixed to the shaft portion 84 by an adhesive, solder, welding, or the like, thereby preventing the nut 89 from loosening with respect to the shaft portion 84.

The auxiliary tool 50 is used when the cover member 15 is fitted into the base member 14. Next, a method of using the accessory 50 will be described. The cover member 15 is embedded in the base member 14 in the following manner. First, the locking portion at one end of the cover member 15 is locked to the base locking portion of the base member 14. This locking is performed, for example, by a person placing one end of the cover member 15 above the base locking portion of the base member 14 and then pressing the one end of the cover member 15 against the base locking portion from above.

Next, the person moves the grip portion of the handle 51 in the extending direction of the cover member 15 while pressing the grip portion downward, thereby moving the roller 60 in the extending direction of the cover member 15 from one end portion to the other end portion of the cover member 15 in a state where the roller 60 presses the upper surface of the cover member 15. As shown in fig. 6, the end 64 on one side (the side of the concave portion 68) in the width direction of the roller 60 is positioned further outward in the width direction than the end 55 on one side in the width direction of the handle 51, and when the auxiliary 50 is used, the end 64 on the side of the outer panel (the side wall portion) 11 of the roller 60 is positioned further toward the side of the outer panel 11 than the end 55 on the side of the side wall portion of the handle 51.

In a state where the roller 60 presses the upper surface of the cover member 15, the handle 51 is slightly moved along the extending direction of the cover member 15, whereby a large downward force can be efficiently applied to the boundary between the fitting portion of the cover member 15 in which the locking portion is locked to the base locking portion and the non-fitting portion of the cover member 15 in which the locking portion is not locked to the base locking portion by the roller 60, and the fitting at the boundary can be performed. Therefore, fitting at the boundary can be performed successively and continuously by moving the roller 60 continuously in the extending direction of the cover member 15, and fitting and fixing of the cover member 15 to the base member 14 can be performed easily by moving the roller 60 once from one end portion to the other end portion of the cover member 15.

Further, when the shape of the outer peripheral surface of the roller 60 in the cross section including the central axis of the roller 60 is a shape corresponding to the shape of the upper surface of the cover member 15, it is preferable that a large force is easily applied from the roller 60 to the cover member 15 efficiently, and the cover member 15 is easily fitted to the base member 14.

As shown in fig. 8, in a cross section including the center axis of the roller 60, a sharp point 77 that cannot be differentiated is preferably present on the outer peripheral surface portion of the roller 60 on the side opposite to the outer panel 11 side in use. As described above, in the escalator 1, the cover member 15 can be fitted to the outer plate 11 side with a weak pressing force, while fitting of the cover member 15 to the side opposite to the outer plate 11 side requires a large pressing force.

However, when such a sharp point 77 exists, the sharp point 77 of the roller 60 can be brought into line contact with the upper surface of the cover member 15. Therefore, as compared with the case where the roller is brought into line contact with the upper surface of the cover member, the side of the cover member 15 opposite to the outer plate 11 side is easily pressed strongly by the roller 60, and a large force is easily locally applied to the side of the cover member 15 opposite to the outer plate 11 side. Therefore, the cover member 15 can be easily and efficiently fitted to the base member 14. In this connection, when the auxiliary tool 50 is used, if a person brings the roller 60 into contact with the side opposite to the outer plate 11 side of the cover member 15 in a state where the roller 60 is slightly inclined so that the end portion of the roller 60 opposite to the recessed portion 68 side is positioned on the lower side, the cover member 15 can be easily fitted, which is preferable.

In the above, the auxiliary tool 50 is used to fit the cover member 15 into the base member 14 from the upper side, so that the locking portion of the cover member 15 is locked to the base locking portion of the base member 14, and the base member 14 is indirectly connected to the skirt panel 12 via the inner deck 13 in the escalator 1 and is arranged to close the gap between the skirt panel 12 and the outer panel 11 extending upward. The auxiliary tool 50 further includes: a handle 51 having a grip portion; and a roller (pressing portion) 60 for pressing the upper surface of the cover member 15 downward by a force from the gripping portion. In addition, the assistive device 50 has the following shape: in use, outer panel 11 side end 64 of roller 60 is positioned closer to outer panel 11 side than outer panel 11 side end 55 of handle 51.

Therefore, even when the cover member 15 has a length of several meters or when the gap between the outer plate 11 and the base member 14 is small, the locking portion at one end of the cover member 15 is locked to the base locking portion of the base member 14, and the roller 60 is moved from one end to the other end of the cover member 15 in a state where the roller 60 presses the upper surface of the cover member 15, so that the cover member 15 can be fitted and fixed to the base member 14 by this movement. Therefore, the cover member 15 can be easily fitted and fixed to the base member 14, as compared with the conventional fitting method described above, in which fitting of the cover member to the base member at a plurality of positions is performed manually.

When the auxiliary device 50 is used, the end 64 of the roller 60 on the outer panel 11 side is positioned closer to the outer panel 11 side than the end 55 of the handle 51 on the outer panel 11 side. Therefore, when the roller 60 is moved in the extending direction of the cover member 15, the handle 51 does not contact the outer panel 11. Thus, since the handle 51 does not interfere with the outer panel 11, the fitting work of the cover member 15 can be smoothly performed, and the handle 51 does not contact the outer panel 11 and damage the outer panel 11.

The auxiliary tool 50 may have a shaft portion 84, and the shaft portion 84 may be integrally formed with the handle 51. The pressing portion may be a roller 60, and the roller 60 may have a through hole 63 for accommodating the shaft portion 84 and may be rotatably attached to the shaft portion 84. Further, when the grip portion is moved along the extending direction of the upper surface of the cover member 15 in a state where the roller 60 is in contact with the upper surface, the roller 60 may be rotationally moved.

According to the above configuration, since the pressing portion is the rotatable roller 60, the pressing portion can be easily and smoothly moved on the upper surface 15d of the cover member 15 in the extending direction of the cover member 15, and the cover member 15 can be more easily fitted and fixed to the base member 14.

In the through hole 63, a recess 68 extending substantially parallel to the shaft 84 may be provided at an end portion located on the outer panel 11 side in use, and a tip end portion of the shaft 84 may be accommodated in the recess 68. The auxiliary tool 50 may further include a nut 89, and the nut 89 may be screwed into the male screw portion 86 provided on the outer peripheral surface of the distal end portion.

According to the above configuration, the prevention structure for preventing the roller 60 from coming off the shaft portion 84 does not protrude further to the outer panel 11 side than the end of the roller 60 on the outer panel 11 side in use. Therefore, the prevention structure does not contact the outer panel 11, and the outer panel 11 is not damaged by contact with the prevention structure during use of the auxiliary 50.

In the auxiliary tool 50, the peripheral region of the through hole 63 disposed on the one axial side of the roller 60 on the outer panel 11 side in use may include an elastic portion having elasticity.

As described above, in the escalator 1, the cover member 15 can be fitted to the outer plate 11 side with a weak pressing force, and the cover member 15 can be fitted to the side opposite to the outer plate 11 side with a large pressing force. According to this configuration, since the outer panel 11 side of the roller 60 can be elastically deformed upward, the opposite side of the outer panel 11 side of the roller 60 can be strongly pressed downward opposite to the outer panel 11 side. Therefore, fitting of the cover member 15 on the side opposite to the outer plate 11 side is easily performed, and fitting of the cover member 15 to the base member 14 can be more easily performed.

The present invention is not limited to the above-described embodiments and modifications thereof, and various improvements and modifications can be made within the scope of the matters recited in the claims of the present application and their equivalents.

For example, in the above embodiment, the case where the apron 12 is connected to the base member 14 via the inner deck 13 has been described, but the apron may be directly connected to the base member.

The description has been given of the case where the roller 60 has the recessed portion 68 extending substantially parallel to the shaft portion 84 at one end of the through hole 63, the tip end portion of the shaft portion 84 is housed in the recessed portion 68, and the nut 89 is screwed into the male screw portion 86 provided at the tip end portion. The case where the prevention structure for preventing the roller 60 from coming off the shaft portion 84 does not protrude outward in the axial direction from the roller 60 has been described. However, the roller may not have such a recess, and the prevention structure for preventing the roller from coming off the shaft portion may include a portion protruding outward in the axial direction from the roller.

The case where the roller 60 has the elastic portion having elasticity around the through hole 63 disposed on the one axial side of the outer panel 11 side when in use has been described. However, the roller may not have an elastic portion having elasticity, and for example, the entire roller may be made of metal or resin other than an elastic body.

In addition, the case where the shape of the outer peripheral surface of the roller 60 in the cross section including the central axis of the roller 60 corresponds to the shape of the upper surface of the cover member 15 has been described. However, the shape of the outer peripheral surface of the roller may not correspond to the shape of the upper surface of the cover member.

In addition, the case where, in a cross section including the center axis of the roller 60, there is a sharp point that cannot be differentiated on the outer peripheral surface portion of the roller 60 located on the side opposite to the outer panel 11 side in use has been described. However, in the cross section including the center axis of the roller 60, there may be no sharp point that cannot be differentiated in the outer peripheral surface portion of the roller located on the side opposite to the side wall portion when in use.

As shown in fig. 6, the case where the center axis of the handle 51 is substantially parallel to the center axis of the roller 60 or is inclined at a slight angle of about 10 ° or less with respect to the center axis of the roller 60 has been described. However, as shown in fig. 11, which is a front view of the auxiliary tool 150 according to a modification, the center axis of the bar-shaped handle 151 may be substantially perpendicular to the center axis of the roller 60 or may be inclined at a large angle of 70 ° or more and less than 90 ° with respect to the center axis of the roller 60.

As shown in fig. 12, which is a front view of the auxiliary 250 according to another modification, the auxiliary 250 may include a handle 251, a plate portion 260 as an example of a pressing portion, and a connecting portion 265. The connection portion 265 may connect the handle 251 and the plate portion 260, and the end 288 of the plate portion 260 on the outer panel 11 side may be located closer to the outer panel 11 side than the end 289 of the handle 251 on the outer panel 11 side in use. The thickness of the end 271 of the plate-shaped portion 260 located on the side of the side wall portion (formed by an outer plate or the like) in use may be larger than the thickness of the end 272 of the plate-shaped portion 260 located on the opposite side of the side wall portion in use. The plate-shaped portion 260 may be formed by joining a plate member 278 having an area of about half the area of the flat plate in a plan view to the side wall portion of the bottom surface of the flat plate by welding, an adhesive, or the like.

According to this configuration, when in use, the plate-shaped portion 260 can be pressed strongly against the side opposite to the side wall of the cover member 15 by the plate-shaped portion 260 while the plate-shaped portion 260 is in contact with the side wall of the cover member 15. Therefore, even in the escalator 1 in which a large pressing force is required for fitting the cover member 15 on the side opposite to the side wall portion, fitting of the cover member 15 into the base member 14 can be easily and efficiently performed.

As shown in fig. 13, which is a front view of a part of an auxiliary 350 according to another modification, the auxiliary 350 may have a column 365 for connecting a handle (not shown) to a plate-shaped portion 360 as a pressing portion. In use, the pillar 365 may be inclined toward the side opposite to the side wall portion (for example, the outer panel 11) as it goes upward in the vertical direction.

According to this configuration, the side opposite to the side wall portion side of the plate-shaped portion 360 is easily positioned lower than the side wall portion side of the plate-shaped portion 360 in use. Therefore, a force can be easily and efficiently applied to the side opposite to the side wall portion of the cover member 15. Thus, in the escalator 1 in which a large pressing force is required for fitting the cover member 15 on the side opposite to the outer panel 11 side, fitting of the cover member 15 to the base member 14 can be easily and efficiently performed. In the assistive devices 250 and 350 shown in fig. 12 and 13, the pressing portions are the plate-shaped portions 260 and 360, and the thicknesses of the plate-shaped portions 260 and 360 are changed. However, the pressing portion may be formed of a flat plate having a constant thickness.

As shown in fig. 14, which is a plan view of the assistive device 450 according to still another modification viewed from above in the height direction, the assistive device 450 may include a handle 451, a roller 460 as a pressing portion, and a 1 st guide roller 480 and a 2 nd guide roller 490. The roller 460 may be rotatably supported by the 1 st shaft portion 410, the 1 st guide roller 480 may be rotatably supported by the 2 nd shaft portion 420, and the 2 nd guide roller 490 may be rotatably supported by the 3 rd shaft portion 430. The 1 st shaft portion 410, the 2 nd shaft portion 420, and the 3 rd shaft portion 430 may be substantially parallel to each other and may be stationary with respect to the handle 451. In fig. 14, the reference sign 455 is a pillar portion extending in the height direction in the auxiliary 450, and the 1 st shaft portion 410, the 2 nd shaft portion 420, and the 3 rd shaft portion 430 may be formed integrally with the pillar portion, for example.

In use, the 1 st guide roller 480 rotates on the upper surface of the cover member 15 at one side in the traveling direction from the roller 460, and the 2 nd guide roller 490 rotates on the upper surface of the cover member 15 toward the traveling direction at the other side in the traveling direction from the roller 460. According to this configuration, the posture of the roller 460 can be stabilized by the 1 st guide roller 480 and the 2 nd guide roller 490, and the roller 460 can be moved smoothly.