阅读说明：本技术 门锁装置 (Door lock device ) 是由 松田阳介 多贺隆雄 木村俊太郎 奥田亮也 于 2019-03-21 设计创作，主要内容包括：本发明提供一种门锁装置,能够容易把持并能够变更规格。门锁装置(10a)包括：鼓出部(30),在车室内侧沿着上下方向延伸；闩锁机构(23),与锁止销卡合而锁定车门；儿童锁杆(62),基于启动儿童锁捏手(28)的操作而作用于闩锁机构(23),使内侧把手产生的车门打开操作无效；电动儿童锁机构(64),对儿童锁杆(62)进行电动操作。电动儿童锁机构(64)具备：第二马达(66)；电动儿童齿轮(70),相对于儿童锁杆(62)配置于上方,由第二马达(66)驱动；以及电动儿童连杆(72),连结电动儿童齿轮(70)与儿童锁杆(62)之间。电动儿童连杆(72)配置于鼓出部(30)的内部空间。(The invention provides a door lock device which can be easily held and can change specifications. A door lock device (10a) is provided with: a bulging section (30) extending in the vertical direction inside the vehicle interior; a latch mechanism (23) which is engaged with the lock pin to lock the door; a child lock lever (62) that acts on the latch mechanism (23) based on an operation to activate the child lock knob (28), and that disables a door opening operation by the inside handle; an electric child lock mechanism (64) electrically operates the child lock lever (62). An electric child lock mechanism (64) is provided with: a second motor (66); an electric child gear (70) disposed above the child lock lever (62) and driven by a second motor (66); and an electric child link (72) connected between the electric child gear (70) and the child lock lever (62). The electric child link (72) is disposed in the internal space of the bulging portion (30).)

1. A door lock apparatus for locking a door of a vehicle, comprising:

A housing;

A bulging portion that extends in a vehicle vertical direction on an interior side of the housing and that bulges toward the interior side of the vehicle; and

and a latch mechanism that engages with a lock pin of the vehicle to lock the door.

2. The door-lock apparatus according to claim 1,

the door lock device includes:

A child lock mechanism that acts on the latch mechanism based on an operation to activate a child lock knob, and that disables a door opening operation by an inside handle of the vehicle; and

An electric child lock mechanism electrically operated,

The electric child lock mechanism includes:

an electric motor;

An electric child gear disposed above or below the child lock mechanism and driven by the motor; and

An electric child link rod connecting the electric child gear and the child lock mechanism in the up-down direction,

the electric child link is disposed in the inner space of the bulging portion,

The electric child connecting rod can be detached,

The electric child gear can be reloaded as a super lock gear driven by the electric motor and acting on the latch mechanism.

3. The door-lock apparatus according to claim 1,

The door lock device includes:

a child lock mechanism that acts on the latch mechanism based on an operation to activate a child lock knob, and that disables a door opening operation by an inside handle of the vehicle;

a super lock mechanism that acts on the latch mechanism based on an electric operation to disable a door opening operation by an outside handle and an inside handle of the vehicle,

the super lock mechanism is provided with:

An electric motor;

a super lock gear disposed above or below the child lock mechanism and driven by the motor to act on the latch mechanism,

The super lock gear can be replaced by an electric child gear driven by the motor,

an electric child link which can be disposed between the electric child gear and the child lock mechanism in the vertical direction,

The electric child link is disposed in an inner space of the bulging portion.

4. The door-lock apparatus according to any one of claims 1 to 3,

A part of the bulging portion forms a surface including a vehicle width direction axis.

Technical Field

The present invention relates to a door lock device for locking a door of a vehicle.

Background

A door lock device for a vehicle is a device that engages and holds a lock pin of the vehicle when a door is closed, and releases the lock pin when the door is opened. The door lock device is desirably formed into a shape that can be easily grasped by an operator when the door lock device is carried or installed in a door during an assembly process of a vehicle. Therefore, a recessed surface for hooking a finger is formed on a side surface of the door lock device described in patent document 1.

Patent document 1: japanese patent laid-open publication No. 5282913

recent door lock devices are sometimes provided with additional functions based on electrical control. An example of this is an electric child lock function. The conventional child lock function is based on disabling a door opening operation by an inside handle by manually activating a child lock knob. In contrast, the electric child lock function automatically disables the opening and closing operation of the inside handle by electrical control. The electric child lock function sometimes exists simultaneously with the manual child lock function.

Further, as another example of the additional function of the door lock device, a super lock function can be given. The super lock function is a function of invalidating the door opening operation by the outside handle and the inside handle by electrical control. According to this super lock function, so-called theft by crashing the door can be prevented by breaking glass to operate the inside handle in the vehicle compartment and opening the door. The super lock function sometimes exists simultaneously with the manual child lock function.

the door lock device is divided into a plurality of specifications as described above, but most of the door lock devices have the same basic structure, and it is desired that the door lock device can accommodate the plurality of specifications by sharing as many components as possible and replacing or adding only a few components.

in contrast, in the door lock device described in patent document 1, since the recessed surface recessed inward is formed, the internal capacity is reduced by that much, and there is no space for the additional member or the shape of the additional member is limited.

Disclosure of Invention

The present invention has been made in view of the above problems, and an object thereof is to provide a door lock device which can be easily gripped by a hand and can be changed in specification.

in order to solve the above problems and achieve the object, a door lock device according to the present invention locks a door of a vehicle, the door lock device including: a housing; a bulging portion that extends in a vehicle vertical direction on an interior side of the housing and that bulges toward the interior side of the vehicle; and a latch mechanism that engages with a lock pin of the vehicle to lock the door.

The configuration may include: a child lock mechanism that acts on the latch mechanism based on an operation to activate a child lock knob, and that disables a door opening operation by an inside handle of the vehicle; and an electric child lock mechanism right for electrically operating the child lock mechanism, the electric child lock mechanism including: an electric motor;

An electric child gear disposed above or below the child lock mechanism and driven by the motor; and an electric child link connecting the electric child gear and the child lock mechanism in the vertical direction, the electric child link being disposed in the inner space of the bulge portion and being detachable from the bulge portion, the electric child gear being replaceable into a super lock gear which is driven by the motor and acts on the latch mechanism.

The configuration may include: a child lock mechanism that acts on the latch mechanism based on an operation to activate a child lock knob, and that disables a door opening operation by an inside handle of the vehicle; a super lock mechanism that acts on the latch mechanism based on an electric operation to disable a door opening operation by an outside handle and an inside handle of the vehicle, the super lock mechanism including: an electric motor; a super lock gear disposed above or below the child lock mechanism and driven by the motor to act on the latch mechanism, the super lock gear being replaceable with a motor-driven electric child gear, the super lock gear being disposed in an electric child link connecting the electric child gear and the child lock mechanism in the vertical direction, the electric child link being disposed in an inner space of the bulge portion.

a part of the bulging portion may form a surface including an axis in the vehicle width direction.

In the door lock device according to the present invention, the bulging portion extending in the vertical direction is provided inside the vehicle interior of the housing, and the door lock device can be easily gripped by hand. Further, the specification can be changed by the presence or absence of the electric child link disposed in the bulging portion.

Drawings

fig. 1 is a perspective view of the door lock device according to the first and second embodiments as viewed obliquely from the front.

Fig. 2 is a perspective view of the door lock device according to the first and second embodiments, as viewed obliquely from the outside of the vehicle.

Fig. 3 is a perspective view showing the back side of the bulging portion.

fig. 4 is a perspective view showing a part of an internal mechanism of the door lock device according to the first embodiment.

Fig. 5 is a side view of the door lock device according to the first embodiment with the cover removed.

Fig. 6 is a cross-sectional view taken along line VI to VI in fig. 1.

fig. 7 is a perspective view showing the door lock device according to the first and second embodiments as viewed obliquely from the inside of the vehicle.

Fig. 8 is a side view of the door lock device according to the second embodiment with the cover removed.

10a, 10 b: a door lock device; 12: a door latch device; 14: a housing; 16: a cover; 20: a waterproof cover; 23: a latch mechanism; 28: a child lock knob; 30: a bulging portion; 30 a: a bending section; 30 b: a skirt portion (a surface including a vehicle width direction axis Y); 30 c: a top surface; 30 d: an upper end portion (a surface including a vehicle width direction axis Y); 30 e: an interior space; 32: a latch mechanism; 48: a first motor; 62. 78: a child lock lever; 64: an electric child lock mechanism; 66: a second motor (electric motor); 70: an electric child gear; 72: an electric child connection rod; 72 a: a bending section; 72 b: an upper end; 72 c: a lower end; 74: a super lock mechanism; 76: super lock gear.

Detailed Description

Hereinafter, embodiments of the door lock device according to the present invention will be described in detail with reference to the drawings. The present invention is not limited to the embodiment. In the following description, the direction of the vehicle suitable for a predetermined direction is used as a reference.

Fig. 1 is an external perspective view of a door lock device 10a according to the first embodiment as viewed obliquely from the rear, and fig. 2 is an external perspective view of the door lock device 10a as viewed obliquely from the vehicle outer side. As will be described later, the door lock device 10b according to the second embodiment also has the same appearance as the door lock device 10 a. The door lock device 10a is mounted inside a door (e.g., a front side door) of a vehicle, and includes a latch device 12, a housing 14, and a cover 16. Although the names are distinguished herein as the housing 14 and the cover 16, the two are shells that are combined as one and cover the internal components. The housing 14 may also be referred to as an outer shell. The hood 16 may also be referred to as an inboard housing. The door lock device 10a shown in fig. 1 is applied to the right side door of the vehicle as an example, but the door lock device applied to the left side door may be configured to have a bilaterally symmetrical structure.

The door lock device 10a includes a coupler 18 for electrically connecting to an external device, a waterproof cover 20, waterproof seals 22 and 24, and a cable cover 26. The waterproof cover 20 covers a boundary portion between the housing 14 and the cover 16 on the upper surface and the front surface of the door lock device 10 a. A waterproof seal 22 covers the periphery of coupler 18. The waterproof seal 24 covers the upper portion and both side portions of the door latch device 12 and a portion up to the cable cover 26 on the inner surface side. A child lock knob 28 that can be operated up and down is provided below the door latch device 12.

The cover 16 is provided with a bulging portion 30 that projects toward the vehicle interior side. The bulging portion 30 is elongated and extends in the vertical direction at a substantially central portion of the door lock device 10a on the vehicle interior side. More specifically, the bulging portion 30 extends from a slightly lower portion of the waterproof cover 20 to an upper edge portion of the cable cover 26. In the bulging portion 30, the upper half portion is vertically oriented, and a portion below the substantially middle curved portion 30a is slightly inclined toward the vehicle rear. As a result, the bulging portion 30 is slightly convex toward the vehicle front side and slightly concave toward the vehicle rear side as a whole. The bulge 30 is relatively small compared to the entire area of the cover 16. The skirt portion 30b, which is a connecting portion of the bulging portion 30 to the hood 16, forms a surface (a surface including the vehicle width direction axis Y in fig. 1) perpendicular to a side surface (a surface including the front-rear direction axis X and the vertical direction axis Z in fig. 1) of the hood 16. In addition, a portion of the skirt portion 30b above the bent portion 30a forms a vertical surface (a surface including the vertical axis Z and the vehicle width axis Y in fig. 1). The top surface 30c of the bulging portion 30 forms a parallel surface with respect to the side surface of the cover 16. The upper end portion 30d of the bulging portion 30 has a substantially semicircular arc shape in a side view. The back side of the bulging portion 30 (see fig. 3) secures an internal space 30e surrounded by the peripheral wall.

The door latch device 12 is a device that locks or unlocks a door of a vehicle by engaging or releasing a lock pin provided in a vehicle body. The door latch device 12 is fixed to a portion of the vehicle rear side of the housing 14, and is supported by the housing 14 in this state. The door latch device 12 includes a main body 12a, a cover plate 12b, and a latch mechanism 32. The latch mechanism 32 is provided to the main body 12a and is covered by the cover plate 12 b. The hood panel 12b has an entry groove 12c, and is attached to the main body 12a such that the entry groove 12c is in a state of communicating with the latch mechanism 32 in the vehicle inside-outside direction. The entering groove 12c is a groove into which a lock pin of the vehicle enters when a door of the vehicle is closed.

as shown in fig. 4, the latch mechanism 32 has a pawl 34, a ratchet 36, and a release lever 38. The pawl 34 is biased in the clockwise direction, and engages with the lock pin S in the groove 34a, thereby locking the door. When a part of the pawl 34 abuts on an end of the ratchet 36 and stops, and the ratchet 36 rotates on the shaft 36a, the pawl 34 is free and rotates on the shaft 34b to release the lock pin S, thereby unlocking the door. The release lever 38 is a lever that rotates the ratchet 36, and a part thereof protrudes into the vehicle interior.

An opening member 40 is provided near the release lever 38, and an outer lever 42 is provided below the ratchet 36. The opening member 40 has an opening link 40a and a sub link 40 b. The outside operating lever 42 is connected to the outside handle. The open link 40a is a plate-like member, and selectively switches its state between an unlock position and a lock position in accordance with the operation of the sub link 40 b. The open link 40a is in a state of facing the protruding portion of the release lever 38 in the vehicle vertical direction when it is located at the unlock position, and is in a state of not facing the protruding portion of the release lever 38, that is, not abutting against the release lever 38 when it is located at the lock position.

The sub link 40b extends in the vehicle up-down direction. The sub link 40b has a coupling hole in a lower portion thereof, and a coupling projection 42a of the outer operating lever 42 is inserted into the coupling hole. The sub link 40b coupled to the outer operating lever 42 by inserting the coupling projection 42a into the coupling hole in this manner can rotate about the coupling projection 42a in a range from the lock position to the unlock position. The sub link 40b is provided with an elongated hole portion 40ba extending in the longitudinal direction (i.e., the vehicle vertical direction).

When the outside lever 42 is rotated about the shaft 42b by the operation of the outside handle, the coupling projection 42a lifts the opening member 40, the opening link 40a lifts the projecting portion of the release lever 38, the ratchet 36 rotates together with the release lever 38, the pawl 34 is in a free state and rotates in the clockwise direction, the lock pin S can be disengaged from the groove 34a, and the door becomes an unlocked state.

As shown in fig. 5, a lock lever 46 that rotates on a shaft 44 is provided at a substantially central portion of the door lock device 10 a. The pin 46a at one end of the lock lever 46 is fitted into the long hole portion 40ba, and can rotate by itself to rotate the opening member 40. The lock lever 46 includes a muffler 46b at an upper portion thereof. A first motor 48 is provided in front of the door lock device 10a at a substantially central height, and a worm 50 is provided on a rotation shaft of the first motor 48. The worm 50 meshes with a worm wheel 51. Three radial protrusions are provided on the back surface of the worm wheel 51, and when the worm wheel 51 rotates, the protrusions can rotate the lock lever 46 via the muffler 46 b. That is, the first motor 48 is rotated by the control unit, and thereby the opening member 40 can be rotated sequentially via the worm 50, the worm wheel 51, the muffler 46b, the lock lever 46, and the pin 46a, and can be switched between the locked state and the unlocked state. This can realize, for example, a centralized door lock function, a keyless entry lock function, and an automatic lock function when the vehicle speed is equal to or higher than a predetermined vehicle speed.

a lock knob lever 52 that rotates on the shaft 44 is provided below the lock lever 46. A part of the lock knob lever 52 is connected to a door lock knob via a cable 54, and the lock knob lever 52 is rotated by operating the door lock knob. The lock lever 46 can be rotated by the rotation of the lock knob lever 52, and can be switched between the locked state and the unlocked state.

An inner operating lever 56 that rotates with a shaft 56a at the lower end is provided at the lower portion of the door lock device 10 a. A part of the inside lever 56 is connected to an inside handle via a cable 58, and the inside handle is operated to rotate the inside lever 56. When the inner lever 56 is rotated counterclockwise, the end 56b at one end lifts the opening member 40 and the release lever 38 via the intermediate member 60, and the door can be unlocked. When the inside lever 56 is rotated counterclockwise, the end 56c at the other end comes into sliding contact with the lock lever 52, the lock lever 52 is rotated clockwise, and the door lock lever is displaced to the unlock position via the cable 54.

A child lock lever 62 is pivotally supported on the shaft 44 in addition to the lock lever 46 and the lock knob lever 52. The child lock lever 62 is provided with a child lock knob 28 at a rear end portion thereof and an arc-shaped long hole 62a slightly forward thereof. The pin 60a of the intermediate member 60 is fitted into the elongated hole 62 a. When the child lock knob 28 is pushed down, the child lock lever 62 rotates clockwise, the pin 60a abuts against the top surface of the long hole 62a, and the upward movement of the intermediate member 60 is restricted. This disables the unlocking operation of the inside handle and the inside operation lever 56, thereby realizing the child lock function. That is, the child lock lever 62 constitutes the child lock mechanism in a single body. The same applies to the child lock lever 78 described later. In fig. 5, the child lock lever 62 is shown in a sparse dot pattern for easy recognition.

The door latch device 10a also has an electric child lock mechanism 64. The electric child lock mechanism 64 is a mechanism that realizes an electric child lock function. The child lock function performed by the child lock lever 62 is electrically performed in the electric child lock function, as compared to the manually operated child lock knob 28.

The electric child lock mechanism 64 has a second motor (electric motor) 66, a worm 68, an electric child gear 70, an electric child link 72, and a child lock lever 62. The child lock lever 62 is shared with a manual child lock function.

The second motor 66 is provided in parallel with the first motor 48 at an upper portion of the door lock device 10a, and a worm 68 is provided at a rotation shaft thereof. The electric child gear 70 is a worm wheel of a substantially 90-degree arc shape rotated by the shaft 71, and the upper teeth are engaged with the worm 68. The electric child gear 70 is coupled to an upper end 72b of the electric child link 72 at a portion immediately in front of the shaft 71. The electric child gear 70 has a protrusion 70a protruding downward. The front end of the projection 70a is fitted into an arc groove 14a provided in the housing 14 and guided. In fig. 5, the electric child gear 70 is shown in a dense dot pattern for easy recognition.

The lower end 72c of the electric child link 72 is connected to the front end of the child lock lever 62. Thus, the powered child gear 70, the powered child link 72, and the child lock lever 62 form a linkage.

When the electric child link 72 is pulled upward by the rotation of the second motor 66, the child lock lever 62 rotates clockwise. Thus, the child lock state is achieved as in the case where the child lock knob 28 on the opposite side is pressed. That is, the child lock and release can be performed electrically.

In the door lock device 10a, the electric child link 72 can be attached to and detached from the electric child gear 70 and the child lock lever 62. In a state where the electric child link 72 is detached, the electric child gear 70 can be attached to and detached from the shaft 71, and further the child lock lever 62 can be attached to and detached from the shaft 44. At this time, the lock lever 46 and the inside operating lever 56 are pivotally supported on the shaft 44 in addition to the child lock lever 62, but since the child lock lever 62 is provided on the most front side (outside of the vehicle compartment) of the drawing, it is possible to remove only the child lock lever 62 without removing the lock lever 46 and the inside operating lever 56. Further, the electric child gear 70 can be detached in a state where the holding worm 68 is attached to the second motor 66. The electric child link 72, the electric child gear 70, and the child lock lever 62 can be integrally removed from the door lock device 10a while maintaining the link mechanism in the mutually coupled state.

The electric child link 72 has a shape matching the bulging portion 30 (see fig. 1). That is, the electric child link 72 has a long strip shape and extends in the vertical direction at a substantially central portion of the door lock device 10 a. More specifically, the electric child link 72 is vertically oriented in the upper half portion, and is slightly inclined toward the vehicle rear side in a portion below the substantially middle bent portion 72 a. As a result, the electric child link 72 has a shape that is slightly convex toward the vehicle front and slightly concave toward the vehicle rear as a whole. The upper end 72b of the electric child link 72 is connected to the vehicle interior side surface of the electric child gear 70, and the lower end 72c is connected to the vehicle interior side surface of the child lock lever 62. Thus, the electric child link 72 is disposed on the innermost side of the vehicle interior among the internal elements of the door lock device 10a (see fig. 4).

In the door lock device 10a, the opening member 40, the lock lever 46, and the first motor 48 that engage and release the latch mechanism 23, which is a basic structure, are disposed at a central height portion. On the other hand, the child lock lever 62 for realizing the child lock mechanism is disposed slightly below. On the other hand, the second motor 66 and the electric child gear 70, which are electric motors of the electric child lock mechanism 64, are disposed above. Since the electric child link 72 extends in the vertical direction, the child lock lever 62 slightly separated vertically can be linked with the electric child gear 70. Depending on design conditions, even when the child lock lever 62 is disposed at an upper position and the second motor 66 and the electric child gear 70 are disposed at a lower position, they can be connected to each other by the electric child link 72.

As shown in fig. 6, at least a part of the electric child link 72 is disposed in the internal space 30e of the bulging portion 30. As a result, in the door lock device 10a, the portion other than the bulging portion 30 becomes narrow, and the entire device becomes compact. The electric child link 72 has a cross section of "コ" with one surface opened in the vehicle outer direction, and has a lightweight structure while maintaining strength.

further, as shown in fig. 7, when the operator grips the door lock device 10a with the hand H from the front, the bulging portion 30 is elongated and extends in the vertical direction at a substantially central portion, so that the index finger, the middle finger, the ring finger, and the little finger are easily hooked and easily gripped. In particular, since the bulging portion 30 is slightly curved at the curved portion 30a and the surface of the skirt portion 30b is formed perpendicular to the cover 16, the fingers can be easily hooked, and an appropriate force can be applied. In order to facilitate hooking of the fingers, the vehicle rear side surface of the skirt portion 30b is preferably formed to be vertical.

Further, since the portion above the bent portion 30a extends in the vehicle vertical direction, it is easier to catch a finger. The height of the bulge 30 is appropriate, and the first joint of the fingertip can be easily hooked. The door lock device 10a is not limited to the orientation shown in fig. 7 when held by the hand H. As shown in fig. 2, the thumb can easily abut against the side surface of the housing 14, and the door lock device 10a can be easily gripped. In this way, in the door lock device 10a, since the bulging portion 30 is provided on the side surface of the cover 16, gripping by the hand H is easy, and operability is excellent.

the door lock device 10a is provided with a latch device 12 on the vehicle rear side and is slightly thick in the vehicle width direction, but is appropriately formed thin on the vehicle front side. Therefore, the door lock device 10a is preferably held by a hand H from the front side of the vehicle (see fig. 2). In this way, the door latch device 12 can be easily aligned and placed in a predetermined mounting position of the door.

Next, a door lock device 10b according to a second embodiment will be described with reference to fig. 8. In the door lock device 10b, the same components as those of the door lock device 10a are denoted by the same reference numerals, and detailed description thereof is omitted. The door lock device 10b is obtained by replacing the electric child lock mechanism 64 in the door lock device 10a with the super lock mechanism 74. The super lock mechanism 74 is a mechanism that enables a super lock function.

The super lock mechanism 74 has the second motor 66, the worm 68, and a super lock gear 76. The second motor 66 and the worm 68 have the same configuration as the door lock device 10a described above. That is, the super lock mechanism 74 replaces the electric child gear 70 in the electric child lock mechanism 64 (see fig. 5) with the super lock gear 76, and removes the electric child link 72.

The super lock gear 76 is a worm wheel of approximately 90-degree arc shape that rotates the shaft 71, and the upper teeth mesh with the worm 68. The super lock gear 76 has a hook 76a projecting obliquely rearward and downward. The engagement of the super lock gear 76 with the worm 68 is the same as the power child gear 70. The super lock gear 76 is pivotally supported by the shaft 71, similarly to the electric child gear 70. In fig. 8, the super lock gear 76 is shown in a dense dot pattern for easy recognition.

When the sub link 40b rotates counterclockwise to be set to the lock position, when the super lock gear 76 rotates clockwise by the rotation of the second motor 66, the hook 76a engages with a part of the sub link 40b to restrict the operation thereof. This disables the door opening operation by the outside handle and the inside handle, and the door becomes in the super-lock state. When the super lock gear 76 is rotated counterclockwise by the rotation of the second motor 66, the hook 76a is disengaged from the engagement portion with the sub link 40b, and the super lock state is released. The super lock gear 76 has a projection 76b projecting obliquely forward and downward. The front end of the projection 76b is fitted into the arc groove 14a provided in the housing 14 and guided. A small projection 76c is provided between the hook 76a and the projection 76 b. The protruding portion 76c slightly bends and rotates together with the super lock gear 76, rides over the top of the peak portion 14b provided in the housing 14, and has a tip end portion abutting against one of the two inclined surfaces forming the peak portion 14 b. Thus, the super lock gear 76 remains in either the super lock activated position or the super lock deactivated position.

in the door lock device 10b, since the electric child link 72 (see fig. 5) is not required, the child lock lever 62 connected to the electric child link 72 is replaced with a child lock lever 78. The child lock lever 78 has the same structure as the child lock lever 62 except that it does not have a front protrusion for coupling to the electric child link 72, is pivotally supported by the shaft 44, has an elongated hole 62a, and has a child lock knob 28 at a rear end portion. The door lock device 10b has a manual child lock function by the child lock lever 78. In the door lock device 10b, the child lock lever 62 of the door lock device 10a may be used as it is. In fig. 8, the child lock lever 78 is shown in a sparse dot pattern for easy recognition.

In the door lock device 10b, the super lock gear 76 can be attached to and detached from the shaft 71, and the child lock lever 78 can be attached to and detached from the shaft 44. At this time, the child lock lever 78 and the lock knob lever 52 and the inside operation lever 56 are pivotally supported on the shaft 44 in addition to the child lock lever 78, but since the child lock lever 78 is provided on the most front side (outside of the vehicle compartment) of the drawing, it is possible to remove only the child lock lever 78 without removing the lock knob lever 52 and the inside operation lever 56. Further, the super lock gear 76 can be detached while keeping the worm 68 attached to the second motor 66.

The door lock device 10b has the same appearance as the door lock device 10a described above. Therefore, the door lock device 10b is also provided with the bulging portion 30 in the cover 16 on the side surface portion, and is easy to grip by the hand H, and excellent in operability (see fig. 2 and 7).

The door lock device 10a (see fig. 5) and the door lock device 10b (see fig. 8) have the same configuration except that only the electric child lock mechanism 64 and the super lock mechanism 74 are different. In addition, the second motor 66 and the worm 68 are common to the electric child lock mechanism 64 and the super lock mechanism 74. As a result, the door lock device 10a and the door lock device 10b are different in the point that: the former has an electric child gear 70, an electric child link 72 and a child lock lever 62, while the latter has a super lock gear 76 and a child lock lever 78. Further, the above elements can be attached and detached.

Therefore, in the door lock device 10a including the electric child lock mechanism 64, the electric child link 72 is removed, the electric child gear 70 is replaced with the super lock gear 76, and the child lock lever 62 is replaced with the child lock lever 78, so that the specification can be changed to the door lock device 10b including the super lock mechanism 74. In this case, the child lock lever 62 is not necessarily replaced, and may be used as it is.

On the other hand, in the door lock device 10b provided with the super lock mechanism 74, the super lock gear 76 is replaced with the electric child gear 70, the child lock lever 78 is replaced with the child lock lever 62, and the electric child link 72 is connected between the electric child gear 70 and the child lock lever 78, whereby the specification can be changed to the door lock device 10a provided with the electric child lock mechanism 64.

Although not shown, a product corresponding to the middle of assembly of the door lock device 10a or the door lock device 10b may be prepared in advance as appropriate, and the child lock lever 62, the electric child gear 70, the electric child link 72, the super lock gear 76, and the child lock lever 78 may be assembled in a state where the cover 16 and the waterproof cover 20 are not assembled. According to the product during such assembly, when the door lock device 10a is required, the child lock lever 62, the electric child gear 70, the electric child link 72, the cover 16, and the waterproof cover 20 may be assembled, and when the door lock device 10b is required, the super lock gear 76, the child lock lever 78, the cover 16, and the waterproof cover 20 may be assembled.

In this way, the specifications of the door lock device 10a and the door lock device 10b can be changed easily and quickly by merely replacing some of the components. Further, the bulging portion 30 is provided at a portion where the electric child link 72 should be provided, and gripping with the hand H is facilitated. Since the bulge 30 is provided to match the shape of the electric child link 72, the shape of the electric child link 72 is not limited.

The present invention is not limited to the above-described embodiments, and can be freely modified within a scope not departing from the gist of the present invention.