阅读说明：本技术 一种基于整木家居具有加强结构的多功能壁橱 (Multifunctional closet with reinforcing structure based on whole wood home ) 是由 钟彪 于 2020-07-21 设计创作，主要内容包括：本发明公开了一种基于整木家居具有加强结构的多功能壁橱,涉及整木家居技术领域,解决了一般的壁橱不具备加强结构,不能增加墙壁的支撑力,安全性低,同时结构固定,适应能力一般,不具备根据安装地点的高度进行调节适应的功能的问题。一种基于整木家居具有加强结构的多功能壁橱,包括垫板；所述垫板数量设置为两组,且垫板的后侧均拼接设置有后垫板；所述后垫板的靠近面均开设有滑动槽,且两组后垫板的滑动槽中均设置导向柱滑动连接,通过设置有加强件,为壁橱提供了加强功能,加强件可以通过伸缩贴合后垫板的内侧,通过浇注口浇筑混凝土固定增加加强件的支撑力,为墙壁提供了辅助支撑功能,可以分担壁橱的承载压力,提高了居住的安全性。(The invention discloses a multifunctional closet with a reinforcing structure based on a whole wood home, relates to the technical field of the whole wood home, and solves the problems that a common closet does not have a reinforcing structure, cannot increase the supporting force of a wall, is low in safety, fixed in structure, general in adaptability and does not have a function of adjusting and adapting according to the height of an installation place. A multifunctional closet with a reinforced structure based on a whole wood home comprises a base plate; the number of the base plates is two, and rear base plates are spliced on the rear sides of the base plates; the sliding tray has all been seted up to the face that is close to of back bolster, and all sets up guide post sliding connection in the sliding tray of two sets of back bolsters, through being provided with the reinforcement, for the closet provides the enhancement function, and the reinforcement can be through the inboard of flexible laminating back bolster, pours the fixed holding power that increases the reinforcement of concrete through the sprue gate, for the wall provides the auxiliary stay function, can share the bearing pressure of closet, has improved the security of living.)

1. The utility model provides a multi-functional closet that has additional strengthening based on whole wooden house which characterized in that: comprises a backing plate (1); the number of the backing plates (1) is two, and the rear sides of the backing plates (1) are respectively provided with a rear backing plate (2) in a splicing manner; sliding grooves are formed in the close surfaces of the rear base plates (2), and guide columns are arranged in the sliding grooves of the two groups of rear base plates (2) and are connected in a sliding mode; the front ends of two sides of the rear backing plate (2) are both provided with a sliding groove structure, two sides of the front end of the lower rear backing plate (2) are provided with two groups of lower side plates (3) in a sliding manner through sliding grooves, and two sides of the upper rear backing plate (2) are provided with two groups of upper side plates (4) in a sliding manner through sliding grooves; the lower side plate (3) further comprises a convex strip (301), a smooth rail (302) and a sliding block (303); convex strips (301) are uniformly arranged on the outer side of the top of the lower side plate (3), and circular slide rails (302) are uniformly arranged on the tops of the convex strips (301); sliding blocks (303) are arranged on the outer sides of the circular sliding rails (302) in a sliding manner; a middle plate (5) is fixedly arranged on the front side of the joint of the upper rear cushion plate (2); the middle of the front side of the upper side rear cushion plate (2) is rotatably provided with a rotary clapboard (6) through a rotating shaft; two groups of circular grooves are formed in the two sides of the rotary partition plate (6); both ends of the rotary partition plate (6) are provided with telescopic shell plates (601) in a sliding manner, and the outer sides of the telescopic shell plates (601) are provided with the telescopic shell plates (601) in a sliding manner; two groups of guide rods (602) are integrally arranged on the inner side of the telescopic shell plate (601), and springs are mounted at the inner ends of the guide rods (602) and inserted into the rotary partition plate (6) to be in elastic sliding connection; four groups of circular grooves are formed in the connecting surface of the rear cushion plate (2), and four groups of reinforcing parts (8) are fixedly arranged between the rear cushion plates (2) through the circular grooves in a clearance fit mode.

2. The multifunctional closet with the reinforced structure based on the whole wood home furnishing according to the claim 1 is characterized in that: the cushion plate (1) also comprises an insertion block (101); the two ends of the rear side of the base plate (1) are both internally and integrally provided with an inserting block (101), and the rear side of the inserting block (101) is integrally provided with a round pin; pin holes are formed in the positions, close to the outer parts, of the two sides of the rear cushion plate (2), and round pins are matched with the rear cushion plate (2) to be inserted into the pin holes and fixedly connected with the cushion plate (1); the side ends of the lower side plate (3) and the upper side plate (4) are provided with notch structures, and the notch structures are matched with the outer portions of the inserting blocks (101).

3. The multifunctional closet with the reinforced structure based on the whole wood home furnishing according to the claim 1 is characterized in that: the lower side plate (3) further comprises an assembling groove (304), a locking block (305) and a locking bolt (306); the top of the front side of the lower side plate (3) is provided with an assembly groove (304), and locking blocks (305) are vertically and slidably arranged in the assembly groove (304) through an inosculation structure; the middle of each locking block (305) is fixedly provided with a locking bolt (306) through bolt connection; the rear side of the sliding block (303) is uniformly provided with an annular bulge, and the circle center of the locking bolt (306) is aligned with the circle center of the annular bulge.

4. The multifunctional closet with the reinforced structure based on the whole wood home furnishing according to the claim 1 is characterized in that: the middle plate (5) also comprises a strip-shaped hole (501) and a fixing piece (502); the main body of the middle plate (5) is of a three-side structure, and the outer sides of the three-side structure are attached to the inner sides of the rear base plate (2), the lower side plate (3) and the upper side plate (4); strip-shaped holes (501) are formed in two ends of the middle face of the middle plate (5), and the middle plate (5) penetrates through the strip-shaped holes (501) and the two groups of rear cushion plates (2) in a sliding mode through a screw structure in the middle of the rear side of the fixing piece (502).

5. The multifunctional closet with the reinforced structure based on the whole wood home furnishing according to the claim 1 is characterized in that: the rotary clapboard (6) also comprises a plug-in column (603) and a finger hole (604); two groups of plug-in columns (603) are uniformly arranged on the outer side of the telescopic shell plate (601), and the outer edges of the plug-in columns (603) are rounded; two groups of finger holes (604) are formed in the front side of the telescopic shell plate (601).

6. The multifunctional closet with the reinforced structure based on the whole wood home furnishing according to the claim 1 is characterized in that: two groups of round holes are formed in the middles of the base plate (1), the lower side plate (3) and the upper side plate (4), and the circle centers of the rotating shafts of the rotating partition plates (6) are aligned with the circle centers of the round holes of the base plate (1), the lower side plate (3) and the upper side plate (4); the inserting columns (603) can be inserted into the middle round holes of the base plate (1), the lower side plate (3) and the upper side plate (4) when the rotary partition plate (6) rotates.

7. The multifunctional closet with the reinforced structure based on the whole wood home furnishing according to the claim 1 is characterized in that: the top and the rear side of the front side of the sliding block (303) are both rotatably provided with a connecting rod (7) through a rotating shaft, and the top of the connecting rod (7) is rotatably connected with the outer side of the upper side plate (4) through the rotating shaft; the connecting rods (7) are all parallel, and the connecting rod (7) on the front side is higher than the connecting rod (7) on the rear side.

8. The multifunctional closet with the reinforced structure based on the whole wood home furnishing according to the claim 1 is characterized in that: the reinforcing piece (8) further comprises a telescopic cylinder (801) and a pouring gate (802); the main body of the reinforcement (8) is of a cylindrical structure, the inner side of the top of the reinforcement (8) is provided with a telescopic cylinder (801) in a sliding mode, and the outer side of the bottom of the telescopic cylinder (801) is provided with a silica gel pad in a bonding mode and is connected with the inner side of the reinforcement (8) in a sealing and sliding mode; a pouring gate (802) is integrally arranged on one side of the top of the telescopic cylinder (801), the main body of the pouring gate (802) is of an inclined structure, and the top surface of the pouring gate (802) is horizontally consistent with the top surface of the telescopic cylinder (801).

Technical Field

The invention relates to the technical field of whole wood home furnishing, in particular to a multifunctional wall cabinet with a reinforcing structure based on the whole wood home furnishing.

Background

Wall cabinets, also known as built-in wall cabinets, refer to floor or hanging storage spaces formed by the combination of a wall and a house cover. A wall cabinet is a cabinet formed by leaving a space on a wall, and is also called a wall cabinet, and a part of the wall is generally required to be pulled out to ensure the installation and use of the wall cabinet.

Patent No. CN104768424B, for example, has been searched for disclosing a hanging bracket (10) for a wall assembly (P) of a closet (11) comprising, in combination: a metal base (21); an arm (13) fitted and hinged on the base (21), having a hook (14) projecting therefrom, the hook (14) being suitable for anchoring on a plate (or other equivalent element (15)) fixed to the wall (P); first and second adjustment mechanisms (19, 20) for adjusting the height and depth position of the arm (13), respectively; a flange (22) integral with the base (21) and equipped with at least one fixing unit (U) for fixing the hanging bracket (10) to the closet (11), the fixing unit (U) comprising shear-resistant elements cooperating with fixing pegs (32) for fixing the hanging bracket (10) to the shoulders (12) of the closet (11). According to the invention, the peg (32) is fitted on a collar (31) projecting from the flange (22). There are also mutual fixing means between the collar (31) and the peg (32) so that they are integral with each other.

Another patent, for example CN103260471B, discloses a hanging assembly (20) for a closet equipped with a detachment prevention system, wherein said hanging assembly comprises a hanger device (21) for being fixed to the cabinet and a wall bracket (22), said hanger device (21) being equipped with a hook (24), wherein said bracket (22) comprises a housing seat (30) of said hook (24), and said hanger device (21) comprises a pin (25) insertable within said housing seat (30) when said hook (24) is engaged in said housing seat (30) to prevent detachment of said hook (24).

However, because pull out strong wall, can lead to the intensity reduction of wall, general closet does not possess additional strengthening, can not increase the holding power of wall, and the security is low, and the while structure is fixed, and adaptability is general, does not possess the function of adjusting the adaptation according to the height in installation site, consequently, unsatisfied current demand, to this we have proposed a multi-functional closet who has additional strengthening based on whole wooden house.

Disclosure of Invention

Problem (A)

The invention aims to provide a multifunctional closet with a reinforcing structure based on a whole wood home, which aims to solve the problems that the strength of a wall is reduced due to the fact that a strong wall is pulled, a common closet does not have a reinforcing structure, cannot increase the supporting force of the wall, is low in safety, fixed in structure and general in adaptability, and does not have the function of adjusting and adapting according to the height of an installation place in the background art.

(II) technical scheme

In order to achieve the purpose, the invention provides the following technical scheme: a multifunctional closet with a reinforced structure based on a whole wood home comprises a base plate; the number of the base plates is two, and rear base plates are spliced on the rear sides of the base plates; the close surfaces of the rear backing plates are provided with sliding grooves, and the sliding grooves of the two sets of rear backing plates are provided with guide posts in sliding connection; the front ends of the two sides of the rear cushion plate are respectively provided with a sliding groove structure, two sides of the front end of the lower rear cushion plate are provided with two groups of lower side plates in a sliding manner through sliding grooves, and two sides of the upper rear cushion plate are provided with two groups of upper side plates in a sliding manner through sliding grooves; the lower side plate also comprises a convex strip, a circular slide rail and a sliding block; the outer side of the top of the lower side plate is uniformly provided with a convex strip, and the top of the convex strip is uniformly provided with a circular slide rail; sliding blocks are arranged on the outer sides of the circular sliding rails in a sliding mode; a middle plate is fixedly arranged on the front side of the joint of the upper rear cushion plate; the middle of the front side of the upper rear base plate is rotatably provided with a rotary clapboard through a rotating shaft; two groups of circular grooves are formed in both sides of the rotary partition plate; both ends of the rotary partition plate are provided with telescopic shell plates in a sliding manner, and the outer sides of the telescopic shell plates are provided with telescopic shell plates in a sliding manner; two groups of guide rods are uniformly arranged on the inner side of the telescopic shell plate in a integrated manner, and springs are arranged at the inner ends of the guide rods and inserted into the rotary partition plate to be in elastic sliding connection; four groups of circular grooves are formed in the connecting surfaces of the rear backing plates, and four groups of reinforcing pieces are fixedly arranged between the rear backing plates through the circular grooves in a clearance fit mode.

Preferably, the base plate further comprises an insertion block; the two ends of the rear side of the base plate are both internally and integrally provided with an inserting block, and the rear side of the inserting block is integrally provided with a round pin; the two sides of the rear cushion plate are provided with pin holes close to the outer part, and the rear cushion plate is matched with round pins to be inserted into the pin holes to be fixedly connected with the cushion plate; the avris both ends of curb plate and last curb plate down all are provided with the breach structure, and the breach structure all coincide with the outside of grafting piece.

Preferably, the lower side plate further comprises an assembly groove, a locking block and a locking bolt; the top of the front side of the lower side plate is provided with an assembly groove, and locking blocks are vertically and slidably arranged in the assembly grooves through an inosculation structure; the middle of each locking block is fixedly provided with a locking bolt through bolt connection; the rear side of the sliding block is integrally provided with an annular bulge, and the circle center of the locking bolt is aligned with the circle center of the annular bulge.

Preferably, the middle plate further comprises a strip-shaped hole and a fixing piece; the main body of the middle plate is of a three-side structure, and the outer sides of the three-side structure are all attached to the inner sides of the rear base plate, the lower side plate and the upper side plate; the bar hole has all been seted up at the middle facial features both ends of intermediate lamella, and the intermediate lamella passes bar hole and two sets of back bolster sliding connection through the middle screw rod structure of stationary blade rear side.

Preferably, the rotary clapboard also comprises a plug-in column and a finger hole; two groups of plug-in columns are integrally arranged on the outer side of the telescopic shell plate, and the outer edges of the plug-in columns are rounded; two groups of finger holes are formed in the front side of the telescopic shell plate.

Preferably, two groups of circular holes are formed in the middle of the base plate, the middle of the lower side plate and the middle of the upper side plate, and the circle centers of the rotating shafts of the rotating partition plates are aligned with the circle centers of the circular holes of the base plate, the circular holes of the lower side plate and the circular holes of the upper side plate; the inserting columns can be inserted into the middle round holes of the base plate, the lower side plate and the upper side plate when the rotary partition plate rotates.

Preferably, the top and the rear side of the front side of the sliding block are both rotatably provided with a connecting rod through a rotating shaft, and the top of the connecting rod is rotatably connected with the outer side of the upper side plate through the rotating shaft; the connecting rods are all parallel to each other, and the connecting rod position of the front side is higher than that of the rear side.

Preferably, the reinforcing part also comprises a telescopic cylinder and a pouring gate; the main body of the reinforcing part is of a cylindrical structure, the inner side of the top of the reinforcing part is provided with a telescopic cylinder in a sliding manner, and the outer side of the bottom of the telescopic cylinder is connected with the inner side of the reinforcing part in a sealing and sliding manner through a silica gel pad which is arranged in a bonding manner; a pouring gate is integrally arranged on one side of the top of the telescopic cylinder, the main body of the pouring gate is of an inclined structure, and the top surface of the pouring gate is horizontally consistent with that of the telescopic cylinder.

(III) advantageous effects

The invention provides a multifunctional closet with a reinforcing structure based on a whole wood home, which is provided with a reinforcing part, so that a reinforcing function is provided for the closet, the reinforcing part can be attached to the inner side of a rear cushion plate in a telescopic mode, the supporting force of the reinforcing part is increased by pouring concrete at a pouring port, an auxiliary supporting function is provided for a wall, the bearing pressure of the closet can be shared, and the living safety is improved.

Secondly, the back bolster can be according to the flexible promotion in interval of closet to it is fixed to utilize the locking of connecting rod, provides the auxiliary stay function for the closet, and provides the auxiliary function for the assembly of reinforcement, provides adaptability for the closet through flexible, can be applicable to the indoor building assembly of co-altitude not, and the setting of intermediate lamella can keep off the interval in the middle of the post bolster simultaneously.

Moreover, the arrangement of the rotary partition plate provides multifunctional placing capacity for the closet, the inner part of the closet can be divided into two parts or three parts by the rotation of the rotary partition plate, different objects can be conveniently stored, and one group or two groups of rotary partition plates can be taken out to increase the inner space for placing large objects.

Drawings

FIG. 1 is a schematic perspective view of an embodiment of the present invention;

FIG. 2 is a schematic perspective rear view structure in an embodiment of the present invention;

FIG. 3 is a structural diagram illustrating a second state in an embodiment of the present invention;

FIG. 4 is a schematic axial side view of an embodiment of the present invention;

FIG. 5 is a schematic perspective view of a rotating partition according to an embodiment of the present invention;

FIG. 6 is a schematic cross-sectional perspective view of a stiffener according to an embodiment of the present invention;

FIG. 7 is an enlarged partial structural view of part A in the embodiment of the present invention;

FIG. 8 is an enlarged partial structural view of a portion B in the embodiment of the present invention;

FIG. 9 is an enlarged view of a portion C according to an embodiment of the present invention;

in fig. 1 to 9, the correspondence between the part names or lines and the reference numbers is:

1. a base plate; 101. an insertion block; 2. a rear cushion plate; 3. a lower side plate; 301. a convex strip; 302. a circular slide rail; 303. a slider; 304. assembling a groove; 305. a locking block; 306. locking the bolt; 4. an upper side plate; 5. a middle plate; 501. a strip-shaped hole; 502. a fixing sheet; 6. rotating the partition plate; 601. a telescopic shell plate; 602. a guide bar; 603. inserting the column; 604. a finger hole; 7. a connecting rod; 8. a reinforcement; 801. a telescopic cylinder; 802. and a pouring gate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1 to 9, an embodiment of the present invention includes: a multifunctional closet with a reinforced structure based on whole wood home furnishing comprises a base plate 1; wherein, the cushion plate 1 also comprises an inserting block 101; the two ends of the rear side of the base plate 1 are both internally and integrally provided with an inserting block 101, and the rear side of the inserting block 101 is integrally provided with a round pin; the two sides of the rear backing plate 2 are provided with pin holes close to the outer part, and the rear backing plate 2 is matched with round pins to be inserted into the pin holes to be fixedly connected with the backing plate 1; notch structures are arranged at two ends of the side of the lower side plate 3 and the side of the upper side plate 4, and the notch structures are matched with the outer parts of the inserting blocks 101; the number of the backing plates 1 is two, and the rear sides of the backing plates 1 are respectively provided with a rear backing plate 2 in a splicing manner; the close surfaces of the rear backing plates 2 are provided with sliding grooves, and the sliding grooves of the two sets of rear backing plates 2 are provided with guide posts in sliding connection; the front ends of two sides of the rear backing plate 2 are both provided with a sliding groove structure, two sides of the front end of the lower rear backing plate 2 are provided with two groups of lower side plates 3 in a sliding manner through sliding grooves, and two sides of the upper rear backing plate 2 are provided with two groups of upper side plates 4 in a sliding manner through sliding grooves; the lower side plate 3 further comprises a convex strip 301, a smooth rail 302 and a sliding block 303; convex strips 301 are uniformly arranged on the outer side of the top of the lower side plate 3, and circular slide rails 302 are uniformly arranged on the tops of the convex strips 301; sliding blocks 303 are arranged on the outer sides of the circular sliding rails 302 in a sliding manner; wherein, the lower side plate 3 further comprises an assembling groove 304, a locking block 305 and a locking bolt 306; the top of the front side of the lower side plate 3 is provided with an assembly groove 304, and the assembly grooves 304 are internally provided with locking blocks 305 in a vertical sliding manner through an inosculation structure; the middle of the locking block 305 is fixedly provided with a locking bolt 306 through bolt connection; an annular bulge is integrally arranged on the rear side of the sliding block 303, and the circle center of the locking bolt 306 is aligned with the circle center of the annular bulge; a middle plate 5 is fixedly arranged at the front side of the joint of the upper rear cushion plate 2; wherein, the middle plate 5 also comprises a strip-shaped hole 501 and a fixing piece 502; the main body of the middle plate 5 is of a three-side structure, and the outer sides of the three-side structure are all attached to the inner sides of the rear cushion plate 2, the lower side plate 3 and the upper side plate 4; both ends of the middle surface of the middle plate 5 are provided with strip-shaped holes 501, and the middle plate 5 passes through the strip-shaped holes 501 through a screw structure in the middle of the rear side of the fixing piece 502 to be connected with the two groups of rear cushion plates 2 in a sliding manner; the middle of the front side of the upper rear cushion plate 2 is rotatably provided with a rotary clapboard 6 through a rotating shaft; two groups of circular grooves are formed in both sides of the rotary partition plate 6; both ends of the rotary clapboard 6 are provided with telescopic shell plates 601 in a sliding manner, and the outer sides of the telescopic shell plates 601 are provided with the telescopic shell plates 601 in a sliding manner; two groups of guide rods 602 are integrally arranged on the inner side of the telescopic shell plate 601, and springs are arranged at the inner ends of the guide rods 602 and are inserted into the rotary partition plate 6 for elastic sliding connection; wherein, the rotary clapboard 6 also comprises a plug column 603 and a finger hole 604; two groups of plug-in columns 603 are integrally arranged on the outer side of the telescopic shell plate 601, and the outer edges of the plug-in columns 603 are rounded; two groups of finger holes 604 are formed in the front side of the telescopic shell plate 601; four groups of circular grooves are formed in the connecting surfaces of the rear backing plates 2, and four groups of reinforcing pieces 8 are fixedly arranged between the rear backing plates 2 through the circular grooves in a clearance fit manner; two groups of round holes are formed in the middles of the base plate 1, the lower side plate 3 and the upper side plate 4, and the circle centers of the rotating shafts of the rotating partition plates 6 are aligned with the circle centers of the round holes of the base plate 1, the lower side plate 3 and the upper side plate 4; the plug columns 603 can be inserted into the middle circular holes of the backing plate 1, the lower side plate 3 and the upper side plate 4 when the rotary partition 6 rotates.

The top and the rear side of the front side of the sliding block 303 are both provided with a connecting rod 7 through a rotating shaft in a rotating manner, and the top of the connecting rod 7 is both connected with the outer side of the upper side plate 4 through a rotating shaft in a rotating manner; the connecting rods 7 are all parallel, and the connecting rod 7 at the front side is higher than the connecting rod 7 at the rear side.

Wherein, the reinforcing member 8 further comprises a telescopic cylinder 801 and a pouring gate 802; the main body of the reinforcement 8 is of a cylindrical structure, the inner side of the top of the reinforcement 8 is provided with a telescopic cylinder 801 in a sliding manner, and the outer side of the bottom of the telescopic cylinder 801 is connected with the inner side of the reinforcement 8 in a sealing and sliding manner through a silica gel pad which is arranged in a bonding manner; a pouring gate 802 is integrally arranged on one side of the top of the telescopic cylinder 801, the main body of the pouring gate 802 is of an inclined structure, and the top surface of the pouring gate 802 is horizontally consistent with that of the telescopic cylinder 801.

The working principle is as follows: during installation, the whole closet is placed in a wall opening, the backing plate 1 on the upper side is lifted up manually, the locking bolt 306 is tightened by an inner hexagonal tool, the locking block 305 is pushed to push the sliding block 303, the sliding block 303 slides on the smooth rail 302, the upper side plate 4 and the backing plate 1 on the upper side are jacked up by the connecting rod 7 to fix the closet, then the reinforcing piece 8 is installed, the pouring gate 802 faces the front side during installation, concrete is poured into the pouring gate 802, the reinforcing piece 8 and the inner part of the telescopic cylinder 801 are filled, then the pouring gate 802 is rotated by 90 degrees, waiting for concrete cooling, and supporting effect is provided for the wall.

The closet can be partitioned by a rotary partition board 6, the rotary partition board 6 can be fixed by a plug column 603, the rotary partition board 6 can be transversely arranged to divide the inside of the closet into three parts, or longitudinally arranged to divide the closet into two parts, or the rotary partition board 6 can be disassembled into one part, so that different types of clothes or objects can be placed in the closet. After the wall cabinet is installed, gaps on two sides of the outer end of the wall cabinet are decorated by decorative wood and are sealed and protected.

When the closet needs to be dismantled, the two groups of backing plates 1 are directly pulled out, so that the closet can be integrally taken out and then is decomposed.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.