TWI761101B - swivel armrest - Google Patents

Abstract

A rotating armrest includes an armrest seat, an armrest, a shaft and a locking component. The armrest seat has an accommodating space. The armrest is pivotally connected to the armrest seat and has a through hole. The shaft rod is inserted through the through hole in a manner that it cannot rotate but can be displaced between a first position and a second position along the axial direction. The locking assembly includes a follower and a positioning piece, the follower is located in the accommodating space and is connected to the handrail, the positioning piece is arranged on the shaft, one of the follower and the positioning piece has at least one protrusion, the other or have multiple grooves. When the shaft is at the first position, the at least one projection is located in one of the grooves, and when the shaft is at the second position, the at least one projection leaves the groove so that the armrest can rotate around the shaft, thereby Change the handrail orientation.

Description

swivel armrest

The present invention is related to the structure of automobile body; in particular, it refers to a rotating armrest which can adjust the swing direction of the armrest.

In order to avoid safety concerns for some people with reduced mobility, most of the current public places or private buildings are equipped with handrails for those with reduced mobility to hold. For example, handrails are also provided in places such as stairwells, bathrooms or toilets, or on vehicles such as trains, buses, MRTs or planes.

For example, in order to reduce the barriers for people with disabilities, many current mobile medical vehicles, taxis or rehabilitation buses are equipped with various barrier-free equipment. Most of them are equipped with mobile barrier-free ramps, so that people or items to be transported (such as wheelchairs, carts) can get on and off traffic vehicles along the ramps to increase the safety and convenience of movement.

However, the current vehicles with barrier-free equipment are still lacking. For example, most of the handrails of the rehabilitation bus are completely fixed on the door panel of the vehicle body, and the use direction of the handrails cannot be changed according to the actual needs of the disabled when getting on and off the bus. In other words, the handicapped person can only grasp the armrest in a single holding position, which increases the inconvenience of use. For example, when the handicapped person wants to leave the vehicle, he must first hold the armrest on the inner side of the door panel to get out of the seat. Get up, and then change to hold the other handrail on the outer side of the door panel to leave the car body. The above situation leads to some people with disabilities who are forced to grasp the handrail in an unfamiliar grasping posture, so they are prone to fall and get injured during the process. , that is, the existing car body armrest structure has potential safety concerns in use.

In view of this, the purpose of the present invention is to provide a rotating armrest, which can adjust the swing direction of the armrest according to the needs of use, and the armrest after being adjusted and swinging has good stability.

In order to achieve the above objects, the rotating armrest provided by the present invention includes an armrest seat, an armrest, a shaft rod and a locking component. The armrest seat has an accommodating space. The armrest is combined with the armrest seat in a way that can be rotated in place, and the armrest has a through hole. The shaft is inserted through the through hole of the handrail in a manner that cannot rotate but can be displaced along the axis between a first position and a second position, and a part of the shaft protrudes to the handrail within the accommodating space of the seat. The locking assembly includes a follower and a positioning piece, wherein the follower is located in the accommodating space of the armrest seat, the armrest drives the follower to rotate, and the positioning piece is arranged on the shaft, wherein the One of the follower and the positioning member has at least one protrusion, and the other has a plurality of grooves. When the shaft is at the first position, the at least one projection is located in one of the grooves, and when the shaft is at the second position, the at least one projection leaves the groove, so that the armrest can be Rotate around the shaft.

The effect of the present invention is that when the shaft is located at the second position, the at least one projection leaves one of the grooves, and the positioning member disposed on the shaft leaves the follower that moves with the handrail, so that As a result, the armrest can be rotated relative to the armrest seat and the shaft to change the direction of the armrest. When the shaft rod is located at the first position again, the at least one projection is located in another groove, so that the positioning member provided on the shaft rod is connected to the follower member that moves with the armrest. In this way, the armrest It cannot be fixed by rotation relative to the armrest seat and the shaft.

In order to describe the present invention more clearly, preferred embodiments are given and described in detail with the drawings as follows. Referring to FIGS. 1 to 6 , a rotating handrail 100 according to a preferred embodiment of the present invention can be combined with a vehicle frame of a vehicle body, such as an A-pillar, B-pillar or C-pillar, or can be Combined with other parts of the car body, such as the side of the car, the roof or the tailgate, or even the seat back inside the car body. Alternatively, the rotating handrail can be arranged on a bathroom, a column or a wall, but not limited thereto. In this embodiment, the rotating handrail 100 is combined with a door panel, and the door panel may be, but not limited to, a door panel of a vehicle with barrier-free equipment, such as a medical vehicle, a taxi, or a reha bus. The rotating armrest 100 includes an armrest seat 10 , an armrest 20 , a shaft rod 30 and a locking element 40 .

The armrest seat 10 is combined with the door panel, and the armrest seat 10 has a base body 12 and a fixing plate 14, wherein the base body 12 is locked on the door panel, and has an accommodating space S, an opening 12a and a port 12b, the opening 12a and the port 12b communicate with the accommodating space S respectively, and are located on both sides of the accommodating space S respectively. The fixing plate 14 closes the port 12b and is connected to the base 12 in a locking manner by two bolts 16 .

One end of the armrest 20 passes through the opening 12a and is coupled to the armrest seat 10 in a way that can rotate in place, and the armrest 20 has a through hole 20a. One end of the through hole 20a corresponds to the port 12b of the accommodating space, and the through hole 20a and the opening 12a and the port 12b of the base body 12 are located on the same imaginary axis (not shown).

Referring to FIG. 4 , the shaft 30 passes through the through hole 20 a of the armrest 20 in a manner that cannot rotate but can be displaced along the axial direction, and a part of the shaft 30 protrudes into the accommodating space of the armrest seat 10 The S is inserted into the fixing plate 14 , and the other part of the shaft 30 protrudes out of the opening 12 a of the seat body 12 and the through hole 20 a of the armrest 20 .

In this embodiment, the means for realizing that the shaft rod 30 can not rotate but can be displaced along the axial direction through the through hole 20a of the handrail 20 is: the shaft rod 30 has a plurality of plug posts 32, and the fixing plate 14 has a plurality of sockets 14a, wherein the pins 32 are formed to protrude outward along the axial direction of the shaft 30 and are respectively inserted into the corresponding sockets 14a. In this way, the pin 32 of the shaft rod 30 can stably slide along the axial direction in the insertion holes 14a of the fixing plate 14 without generating torque.

Please refer to FIG. 2 and FIG. 3 , the locking assembly 40 includes a positioning member 42 and a follower member 44 . The positioning member 42 has at least one protruding block 422 . In this embodiment, there are a plurality of protruding blocks 422 . The protruding blocks 422 are annularly and equidistantly connected to the outer peripheral surface of the shaft rod 30 . The follower 44 is located in the accommodating space S of the armrest 10 , and is connected to the armrest 20 passing through the opening 12 a so as to be rotated by the armrest 20 . The follower 44 is a cylindrical body 44 , a plurality of grooves 444 are integrally formed on the inner peripheral surface of the cylindrical body 44 , and a convex portion 442 is formed between adjacent grooves 444 .

Referring to FIGS. 4 to 6 , with the above structure, the shaft rod 30 can be axially positioned between a first position P1 and a second position P2 , so that the handrail 20 can change direction. 4 , when the shaft 30 is located at the first position P1 , the projections 422 of the positioning member 42 coupled to the shaft 30 abut against the bottom of a groove 444 of the follower 44 respectively. The side surfaces of the protruding blocks 422 abut against the corresponding protruding portions 442 , so that the armrest 20 , which moves together with the follower 44 , cannot be rotated and positioned. When an external force F is applied to the shaft rod 30 to move the shaft rod 30 from the first position P1 to the second position P2 in the axial direction, the positioning member 42 moves along an unlocking direction D, and the unlocking direction D is parallel to the shaft 30 and is directed towards the fixed plate 14 . 5 and 6, when the shaft 30 is located at the second position P2, the projections 422 have left the grooves 444, so that the follower 44 moving with the handrail 20 is not connected to the shaft The positioning member 42 , which moves simultaneously with 30 , is positioned so that the armrest 20 can rotate around the shaft 30 , thereby changing the direction of the armrest 20 .

In order to allow the shaft 30 to automatically return from the second position P2 to the first position P1 when the external force F is removed, the locking assembly 40 in this embodiment further includes a spring 46 , and the spring 46 is sleeved on the shaft 30 , and the two ends thereof abut against the protrusions 422 of the positioning member 42 and the fixing plate 14 of the armrest 10 respectively. When the shaft rod 30 is axially displaced from the first position P1 to the second position P2 by the external force F, that is, the unlocking direction D, the spring 46 will be compressed by the protrusions 422 and the fixing plate 14 , And the bumps 422 are separated from the grooves 444 . When the operator turns the armrest 20 to an appropriate angle and releases the external force F, the elastic force of the spring 46 will urge the shaft 30 to maintain the movement in the direction of the first position P1, and push the protrusions 422 toward an opposite direction. Moving in the direction of the unlocking direction D, the bumps 422 are located in the grooves 444 again, thereby achieving the effect of automatic positioning.

In addition, the locking assembly 40 in this embodiment further includes a bearing 48 . The bearing 48 is sleeved on a neck 446 formed on the outer peripheral surface of the cylinder body 44 and abuts against the opening formed on the armrest seat 10 . A shoulder 11 on the periphery of 12a, so that the armrest 20 can smoothly rotate relative to the armrest seat 10 in place. In addition, the armrest seat of the rotating armrest of the present invention can also be an integral structure, and the armrest seat has an accommodating space and an opening communicating with the accommodating space, and the armrest can be directly pivoted to the periphery of the opening of the accommodating space For example, the armrest has an annular recess, the armrest seat has the aforementioned shoulder portion, and the abutment portion is engaged with the annular recess, and the shaft and the locking component are located in the accommodating space through the opening.

In other embodiments, the positioning member provided by the present invention may have a protrusion, and the driven member may have a plurality of grooves. The positioning method in which a single protrusion is engaged with different grooves can also achieve the positioning of the handrail. The direction can be changed relative to the shaft and the armrest. In addition, the structure of the positioning member and the driven member of the present invention can be interchanged, that is, the driven member can have at least one protrusion, and the positioning member has a plurality of grooves.

Referring to FIG. 7 , in other practice, the shaft of the present invention may have at least one post 32', the fixing plate 14' has at least one non-circular hole 14b, and the contour of the post 32' matches the non-circular hole 14b. The hole pattern of the hole 14b, the post 32' is inserted into the non-circular hole 14b, so that the shaft can not be rotated but can be displaced along the axial direction through the through hole of the handrail and combined with the fixed purpose on the board.

Referring to FIG. 8 , in other practice, the inner wall of the through hole 20a ′ of the handrail 20 ′ of the present invention has at least one groove 21 , and the groove 21 is arranged along the axial direction; the outer peripheral surface of the shaft rod has at least one groove 21 . The rib 34 is located in the groove 21 . In this way, the shaft does not need to be combined with the fixing plate, and the purpose of being inserted into the through hole of the handrail in a way that it cannot rotate but can be displaced along the axial direction can be achieved.

To sum up, when the shaft of the present invention is in the second position, the at least one protrusion leaves one of the grooves, so that the positioning member provided on the shaft is separated from the follower that moves with the handrail, so that As a result, the armrest can be rotated relative to the armrest seat and the shaft to change the orientation of the armrest. When the shaft rod is located at the first position again, the at least one projection is located in another groove, so that the positioning member disposed on the shaft rod is connected to the follower member that moves with the armrest, so that the armrest cannot be opposite to each other. It is fixed by rotation of the armrest and the shaft. With the above structure, some people with disabilities can press the part of the shaft that protrudes out of the through hole of the armrest during the support process, that is, the direction of the rotating armrest can be changed, and then only need to support the rotating armrest of the present invention. into the vehicle. In addition, users of different heights can also change the direction of the armrest according to their needs.

The above descriptions are only preferred feasible embodiments of the present invention, and any equivalent changes made by applying the description of the present invention and the scope of the patent application should be included in the patent scope of the present invention.

[this invention] 100: Swivel armrest 10: Armrest seat 11: yoke 12: seat body 12a: Opening 12b: port 14,14': Fixing plate 14a: jack 14b: Non-circular holes 16: Bolts 20,20': Armrest 20a, 20a': through hole 21: Groove 30: Axle 32: Post 32': post 34: Ribs 40: Lock Components 42: Positioning pieces 422: bump 44: Follower (Cylinder) 442: convex part 444: Groove 446: Neck 46: Spring 48: Bearings S: accommodating space P1: first position P2: Second position F: external force D: unlock direction

FIG. 1 is a perspective view of a rotating armrest according to a preferred embodiment of the present invention. FIG. 2 is an exploded view of the rotating armrest of the above preferred embodiment. FIG. 3 is a partially exploded view of the rotating armrest of the above preferred embodiment from another perspective. FIG. 4 is a cross-sectional view taken along the line 4-4 of FIG. 1 . Fig. 5 is similar to Fig. 4, showing that the bumps leave the grooves. FIG. 6 is another perspective view of the rotating armrest of the above preferred embodiment, showing that the direction of the armrest is changed. 7 is a schematic diagram of a shaft and a fixing plate in another preferred embodiment of the present invention. FIG. 8 is a partial cross-sectional schematic diagram of a shaft and a handrail in another preferred embodiment of the present invention.

100: Swivel armrest

10: Armrest seat

20: Armrest

30: Axle

Claims (9)

A swivel handrail comprising: an armrest seat with an accommodating space; an armrest, which is connected to the armrest seat in a way that can be rotated in place, and the armrest has a through hole; A shaft is inserted through the through hole of the handrail in a way that it cannot rotate but can be displaced along the axis between a first position and a second position, and a part of the shaft protrudes to the handrail within the accommodation space of the seat; and A locking assembly includes a follower and a positioning piece, the follower is located in the accommodating space of the armrest seat, the armrest drives the follower to rotate, the positioning piece is arranged on the shaft, wherein the One of the follower and the positioning member has at least one protrusion, and the other has a plurality of grooves; wherein when the shaft is located at the first position, the at least one protrusion is located in one of the grooves, When the shaft is located at the second position, the at least one projection leaves the groove, so that the armrest can rotate around the shaft. The rotating handrail according to claim 1, wherein the handrail seat has an opening communicating with the accommodating space; the follower is a cylindrical body, the inner peripheral surface of the cylindrical body is integrally formed with a plurality of grooves, and the adjacent grooves A convex part is formed therebetween; the positioning member has the at least one convex block, the at least one convex block is connected to the outer peripheral surface of the shaft rod, and when the at least one convex block abuts against the groove bottom of the corresponding groove, The shaft is located at the first position; one end of the handrail passes through the opening and is connected to the cylinder. The rotating armrest according to claim 2, wherein the armrest seat is formed with a shoulder on the periphery of the opening, a neck is formed on the outer periphery of the cylinder, and the locking assembly includes a bearing, and the bearing is sleeved on the cylinder The neck of the armrest is abutted against the shoulder of the armrest seat, so that the armrest can be rotated in place. The rotating armrest as claimed in claim 2, wherein the locking component comprises a spring; the spring is sleeved on the shaft rod and two ends of the spring abut the protrusion and the armrest seat respectively, and the elastic force of the spring urges the shaft rod to maintain move toward the first position. The rotating armrest as claimed in claim 4, wherein the armrest base comprises a base and a fixing plate, the base has the accommodating space, the opening and a port, the port is communicated with the accommodating space and is located separately from the opening On both sides of the accommodating space, the fixing plate is connected to the seat body and closes the port; one end of the spring abuts the fixing plate. The swivel handrail as claimed in claim 5, wherein the fixing plate has at least one non-circular hole, the shaft rod has at least one plug, the contour of the plug matches the hole pattern of the non-circular hole, and the plug is inserted into in the non-circular hole. The rotating handrail according to claim 5, wherein the fixing plate has a plurality of insertion holes, the shaft rod has a plurality of insertion posts, and the insertion posts are respectively inserted into the corresponding insertion holes. The rotating handrail according to any one of claims 1 to 5, wherein the inner wall of the through hole of the handrail has at least one groove, and the groove is arranged along the axial direction; the outer peripheral surface of the shaft rod has at least one convex rib , the rib is located in the groove. The rotating handrail as claimed in claim 1, wherein when an external force is applied to the shaft rod, so that the shaft rod is displaced from the first position to the second position in the axial direction, the positioning member is along an unlocking direction, and the unlocking direction is parallel to the shaft.

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