CN113100599A

CN113100599A - Armrest cushion with multi-directional adjustment

Info

Publication number: CN113100599A
Application number: CN202010020066.2A
Authority: CN
Inventors: 谢文平
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-01-09
Filing date: 2020-01-09
Publication date: 2021-07-13

Abstract

The invention relates to a handrail back cushion with multidirectional adjustment, which is arranged at the top end of a handle and comprises: the back cushion comprises a bottom disc, a back cushion body and a sliding control assembly, wherein the sliding control assembly comprises a control pressing piece, a longitudinal sliding piece, a transverse sliding shaft group, two limiting tooth pieces and a bottom disc, and the engagement between the two limiting tooth pieces and the transverse sliding shaft group is released through the pressing of the control pressing piece, so that the back cushion body can be adjusted in displacement in a front-back, left-right and rotating mode by means of the matching of the longitudinal hole and the transverse sliding shaft group, the matching of a sliding block of the longitudinal sliding piece and the through hole and the pivoting matching between the main base body and the toothed disc piece, and the back cushion body can hold a handle as an axis.

Description

Armrest cushion with multi-directional adjustment

Technical Field

The invention relates to an armrest cushion with multidirectional adjustment, in particular to a technology applied to the field of chairs, which is suitable for chairs such as chairs, wheelchairs and the like capable of being placed by hands, and the technology is that the armrest cushion can be adjusted to the most comfortable swing direction by matching with the placement position of the hands, namely the armrest cushion with excellent practicability.

Background

When people work, rest and move inconveniently, the chair is most suitable to be used for sitting, so that the burden of supporting the body weight for a long time by feet is relieved, the abrasion among skeletons in legs is effectively reduced, in addition, the comfortable sitting is also a part which is necessary for moderately relaxing the hands, so that most chairs are provided with handrails (handrails) at two sides, so that when a user sits, two hands can be easily placed on the handrails, in addition, the use of the handrails is matched with the height of an office table of some chairs when the chair is used in offices, and how to place the two hands of the user on the handrails for working is the aim of maintaining better comfort of most chairs at present.

Most of chairs in the market are designed with handles capable of being adjusted in height as a main technology, but the adjustment of the height of the handles cannot meet the requirement on comfort for users, so the technology is moved to a back cushion for leaning against hands, relevant manufacturers place the users who can provide different arm lengths between the back cushion and the handles, the chairs capable of being adjusted for the back cushion, such as Taiwan patent numbers I414256, I353822, I468131, M420257 and the like, the listed patent documents disclose that the back cushion is displaced front and back and left and right relative to the handles, so that the users with different arm lengths can achieve the best comfort for placing hands, but the hand placement does not have the comfort only by being adjusted front and back and left and right, the hands of many users can be different in posture due to the things played, and the simple front and back and left and right positions of the back cushion are provided, The left-right displacement adjustment is not satisfactory for the hand placement of the user. Therefore, the relevant industry must think about how to improve to be able to provide the user with a resting place at the back cushion for the maximum so-called comfort.

Disclosure of Invention

In order to solve the problem that the common chairs can not meet and match with more postures and actions of the hands of users only by simple lifting, front-back and left-right displacement on the adjusting armrests, the invention provides the armrest cushion with multi-direction adjustment, so that the hands of the users can be abutted and placed against different arm lengths, and the armrest cushion can be matched with the actions and things of the hands to achieve the maximum comfort.

The technical scheme adopted by the invention for solving the technical problems is as follows:

a handrail cushion with multi-directional adjustment, which is installed on the top end of a handle, comprises: a bottom disc piece, which is sealed and assembled on the top end surface of the holding handle and is mutually locked, the top surface of the bottom disc piece is further provided with a lock bolt in a protruding way, one end of the lock bolt, which is connected with the bottom disc piece, is a positioning part, and the opposite end is a pivot part; a cushion body which is arranged at the top end of the holding handle and is abutted against the chassis sheet, a containing chamber is arranged in the cushion body, a slide hole is arranged at the bottom of the containing chamber, a through hole is arranged at the side edge of the containing chamber, and the lock bolt of the bottom sheet is penetrated through the slide hole and is positioned in the containing chamber.

A sliding control assembly, which is arranged in the containing chamber, the sliding control assembly comprises a control pressing piece, a longitudinal sliding piece, a transverse sliding shaft group, two limiting tooth sheets and a bottom substrate, one surface of the longitudinal sliding piece is attached to the bottom surface of the containing chamber, the longitudinal sliding piece is further convexly provided with a sliding block corresponding to the sliding hole, the sliding block is further provided with a longitudinal hole corresponding to the lock bolt, the sliding block moves in the sliding hole, and the lock bolt moves along the longitudinal hole; in addition, two ends of the other side of the longitudinal sliding sheet are respectively provided with a plurality of clamping frames at intervals, and a surrounding wall is arranged to surround and enclose the plurality of clamping frames; in addition, the two ends of the bottom substrate are respectively clamped on the clamping frames, the bottom substrate is provided with a transverse hole corresponding to the longitudinal hole, one end of the bottom substrate is clamped with the pressure control piece, the other end of the bottom substrate is convexly provided with a plurality of elastic columns, one end of each elastic column is connected with the bottom substrate, the other end of each elastic column is propped against the inner wall of the containing chamber, and one end of the pressure control piece is clamped with the bottom substrate, and the other end of the pressure control piece penetrates through the through hole; the two limit tooth sheets are respectively clamped between the base sheet and the longitudinal sliding sheet, one sides of the two limit tooth sheets corresponding to the base sheet are further provided with a convex block in a protruding mode respectively, the base sheet is provided with two tracks respectively corresponding to the convex blocks of the two limit tooth sheets, the two tracks extend downwards from one end of the base sheet provided with a plurality of elastic columns and then extend towards two sides, the two limit tooth sheets move on the two tracks by the convex blocks and are close to and far away from each other, one sides of the two limit tooth sheets corresponding to each other are respectively provided with a tooth-meshing part, the opposite ends of the two limit tooth sheets provided with the tooth-meshing part respectively extend to form an elastic part, one end of each elastic part is connected with the limit tooth sheet, and the other end of each elastic part is elastically abutted to the surrounding wall; the transverse sliding shaft group is sleeved on the lock bolt and positioned between the two limiting tooth sheets and in the transverse hole, the transverse sliding shaft group further comprises a main seat body and a gear disc piece, the main seat body is concavely provided with an arc groove, one side of the main seat body is provided with a tooth meshing part with one side of which the gear row meshes with any one of the two limiting tooth sheets, the gear disc piece is arranged in the arc groove of the main seat body and is penetrated with a shaft hole, the hole pattern of the shaft hole respectively corresponds to the positioning part and the pivot joint part, the gear disc piece swings relative to the main seat body in a pivot way, and one side of the gear disc piece is provided with a ring gear row which meshes with the tooth part of the other limiting tooth sheet; the cushion body can be pivoted and matched with the main seat body and the fluted disc piece by means of matching of the longitudinal hole and the transverse sliding shaft group, matching of the sliding block of the longitudinal sliding piece and the through hole and pivoting and matching between the main seat body and the fluted disc piece, so that the cushion body can hold the handle as an axis to perform displacement adjustment of front and back, left and right and rotation.

The invention has the advantages that the hands of the user can be abutted and placed against different arm lengths, and the actions and things engaged in by the hands can be matched with each other to achieve the maximum comfort.

Drawings

The invention is further illustrated with reference to the following figures and examples.

Fig. 1 is a perspective view of the present invention.

Fig. 2 is a perspective view of the present invention mounted to a handle.

FIG. 3 is an exploded perspective view of the cushion body of the present invention.

FIG. 4 is an exploded perspective view of the cushion body and the slide control assembly of the present invention.

FIG. 5 is an exploded perspective view of the slide control assembly of the present invention.

Fig. 5A is another exploded perspective view of fig. 5.

FIG. 6 is a schematic perspective view of the cushion body of the present invention displaced forward and backward relative to the handle.

FIG. 7 is a perspective view of the slide control assembly in the back cushion body without pressing the pressing member.

Fig. 8 is a top plan view of fig. 7.

FIG. 9 is a cross-sectional view of IX-IX shown in FIG. 7.

FIG. 10 is a schematic sectional view of the line X-X shown in FIG. 7.

FIG. 11 is a schematic diagram of the present invention, which controls the two-position limiting teeth and the bottom substrate to move according to the pressure-controlled pressing member and releases the engagement between the two-position limiting teeth and the ring and side rows of teeth.

FIG. 12 is a schematic view of the pressing and pressure-controlling member of FIG. 9 controlling the movement of the two-position-limiting teeth and the bottom substrate and releasing the engagement of the two-position-limiting teeth with the ring teeth row and the side teeth row.

FIG. 13 is another sectional view of FIG. 12.

Fig. 14 is a schematic view showing the movement of the back cushion body in fig. 12.

FIG. 15 is a schematic view of the cushion body of FIG. 12 moving in another direction.

Fig. 16 is a schematic diagram of the left and right displacement of the back cushion body according to the present invention.

Fig. 17 is a schematic diagram of the movement of the back cushion, the longitudinal slide plate, the two limiting teeth plates and the bottom substrate of the sliding control assembly of the present invention moving around the lateral slide shaft set as the axis and the lateral slide shaft set shifting to one side in the longitudinal slide hole after the pressure control member is pressed.

Fig. 18 is a schematic diagram of the movement of the back cushion, the longitudinal slide plate, the two limiting teeth plates and the bottom substrate of the sliding control assembly of the present invention moving around the lateral slide shaft set as the axis and the lateral slide shaft set shifting to the other side in the longitudinal slide hole after the pressure control member is pressed.

Fig. 19 is a schematic view showing the rotation of the back cushion body according to the present invention.

Fig. 20 is a schematic diagram of the operation of the sliding control assembly, except the toothed disc and the lock pin, when the cushion body swings in one direction, the components are linked together.

Fig. 21 is a schematic diagram of the operation of the components of the sliding control assembly except the toothed disc component, which are pivoted with the lock bolt as the pivot axes after the pressure control component is pressed, when the backrest body swings towards the other direction.

The reference numbers in the figures illustrate:

10 handle 20X axis

30Y-axis 40Z-axis

1 Chassis slice 11 latch

111 hinge part of positioning part 112

2 cushion body 21 containing chamber

22 slide hole 23 perforation

24 bottom shell 25 soft leaning piece

251 slot

3 sliding control assembly 31 pressure control piece

311 pressure control part 312 buckling part

313 snap groove 314 tooth

32 longitudinal sliding vane 321 sliding block

322 longitudinal hole 323 clamping frame

324 enclosure 325 tooth row

326 rail block 327 slot

33 transverse sliding shaft set 331 main seat body

332 toothed disk 332A upper disk part

332B lower pivot 333 arc groove

334 side gear row 335 axle hole

335A round segment 335B square segment

336 ring gear row 337 assembly hole

34 limit tooth sheet 341 convex block

342 engaging tooth 343 elastic member

344 rail ditch

35 base substrate 351 transverse holes

352 elastic column 353 track

354 groove block

Detailed Description

In order to clearly illustrate the above objects and functions of the present invention, the embodiments of the present invention will be described in detail with reference to the accompanying drawings. Referring to fig. 1 to 21, the armrest cushion with multi-directional adjustment according to the present invention is mounted on the top of a handle 10, and the handle 10 is disposed on both sides of a chair and provides a user with hands to rest thereon, and comprises: a bottom disc 1, which is sealed and assembled on the top end face of the handle 10 and is mutually locked, and the top face of the bottom disc 1 is further provided with a lock bolt 11 in a protruding way, and one end of the lock bolt 11 connected with the bottom disc 1 is a positioning part 111, while the opposite end is a pivot part 112; a cushion body 2 mainly provides the placement and the leaning of the hand of the user to achieve better comfort, the cushion body 2 is arranged at the top end of the handle 10 and is leaned against the top surface of the chassis sheet 1, an accommodating chamber 21 is arranged inside the cushion body 2, the bottom of the accommodating chamber 21 is provided with a slide hole 22, the side edge of the accommodating chamber 21 is provided with a through hole 23, and the lock bolt 11 of the chassis sheet 1 penetrates through the slide hole 22 and is positioned in the accommodating chamber 21; a sliding control assembly 3, which is installed in the containing chamber 21 and is used to drive and control the back cushion body 2 to move relative to the handle 10 by taking the lock bolt 11 as an axis, and the sliding control assembly 3 includes a control pressing piece 31, a longitudinal sliding piece 32, a transverse sliding shaft group 33, two limit tooth pieces 34 and a bottom substrate 35, one surface of the longitudinal sliding piece 32 is attached to the bottom surface of the containing chamber 21, and the longitudinal sliding piece 32 is further provided with a sliding block 321 corresponding to the sliding hole 22 in a protruding manner, the sliding block 321 is further provided with a longitudinal hole 322 in an oblong shape corresponding to the lock bolt 11, the sliding block 321 is displaced in the sliding hole 22, the lock bolt 11 is displaced along the longitudinal hole 322, the displacement direction of the lock bolt 11 is different from the displacement direction of the sliding block 321 in the sliding hole 22; in addition, two ends of the other side of the longitudinal sliding piece 32 are respectively provided with a plurality of clamping frames 323 with a spacing, and a surrounding wall 324 is further provided to surround and enclose the plurality of clamping frames 323.

In addition, the two ends of the bottom substrate 35 are respectively clamped to the plurality of clamping frames 323, the bottom substrate 35 is provided with a transverse hole 351 corresponding to the longitudinal hole 322, the transverse hole 351 is communicated with the longitudinal hole 322 and the sliding hole 22, one end surface of one end of the bottom substrate 35 is clamped with the pressure control piece 31, the other end of the bottom substrate is convexly provided with a plurality of elastic columns 352, one end of each elastic column 352 is connected with the bottom substrate 35, the other end of each elastic column is propped against the inner wall of the accommodating chamber 21, and one end of the pressure control piece 31 is clamped with the bottom substrate 35, and the other end of the pressure control piece 31 penetrates through the through hole 23; the two limiting tooth plates 34 are respectively clamped between the base plate 35 and the longitudinal sliding piece 32, the two limiting tooth plates 34 are respectively located at two sides of the longitudinal hole 322, one side of the two limiting tooth plates 34 corresponding to the base plate 35 is further provided with a convex block 341 in a protruding manner, the convex block 341 of the base plate 35 corresponding to the two limiting tooth plates 34 is provided with two tracks 353, the two tracks 353 extend downwards from one end of the base plate 35 provided with a plurality of elastic columns 352 and then extend towards two opposite sides, the two limiting tooth plates 34 move on the two tracks 353 by the convex blocks 341 and are close to and far away from each other, one side of the two limiting tooth plates 34 corresponding to each other is provided with a tooth engaging part 342, the opposite ends of the two limiting tooth plates 34 provided with the tooth engaging part 342 are respectively extended with an elastic piece 343, one end of each elastic piece 343 connected with the other end of the limiting tooth plate 34 is abutted against the surrounding wall 324; the transverse sliding shaft set 33 is sleeved on the lock bolt 11 and located between the two limit tooth plates 34 and in the transverse hole 351, the transverse sliding shaft set 33 further comprises a main base body 331 and a toothed disc member 332, the main base body 331 is concavely provided with an arc groove 333, one side of the main base body 331 is provided with a side toothed row 334 meshed with a meshed tooth part 342 of any one of the two limit tooth plates 34, the toothed disc member 332 is assembled in the arc groove 333 of the main base body 331 and rotates in a pivoting manner relative to the arc groove 333, the toothed disc member 332 is provided with a shaft hole 335 through, the hole pattern of the shaft hole 335 is matched with the shapes of the positioning part 111 and the pivoting part 112 respectively, the toothed disc member 332 pivots relative to the main base body 331 and one side of the toothed disc member is provided with a ring toothed row 336 meshed tooth part 342 of the other limit tooth plate 34; the two limit tooth plates 34 are disengaged from the transverse sliding shaft set 33 by pressing the pressure control member 31, so that the cushion body 2 can be pivotally engaged with the main seat 331 and the tooth plate 332 by the engagement of the longitudinal hole 322 and the transverse sliding shaft set 33, the engagement of the sliding block 321 of the longitudinal sliding plate 32 and the sliding hole 22, and the pivotal engagement between the main seat 331 and the tooth plate 332, so that the cushion body 2 can support the handle 10 as an axis to perform displacement adjustment of front and back, left and right, and rotation.

According to the above description, referring to fig. 6 to 13, the present invention provides a more detailed operation manner, now an X-axis 20, a Y-axis 30 and a Z-axis 40 are defined by taking the handle 10 as the axis, the handle 10 is on the Z-axis 40, and the backrest cushion body 2 is located on the horizontal plane of the positions of the X-axis 20 and the Y-axis 30, so that when a user wants to adjust the position of the backrest cushion body 2 relative to the handle 10 for the better comfort of leaning against the hands, the user only needs to press the pressure control member 31 towards the accommodating chamber 21, and at the same time, the pressure control member 31 will drive the bottom base plate 35 to move towards the pressure control member 31, and at the same time, the two tracks 353 engaged with the bottom plate 35 cooperate with the protrusions 341 of the limiting teeth 34 to move the limiting teeth 34 towards the end provided with the elastic member 343, so as to release the limiting teeth 342 and the ring teeth 336 of the teeth 332 of the gear plate 34 and the ring gear row 336 of the gear plate, When the above-mentioned relation is released, the back cushion body 2 can start to move in the adjustment direction by the combination of the lateral sliding shaft set 33 and the latch 11, the back cushion body 2 can move back and forth along the Y-axis 30 direction, during the movement, the back cushion body 2 can be controlled to move back and forth along the Y-axis 30 direction by pushing because the combination of the lateral sliding shaft set 33 and the latch 11 and the area of the longitudinal sliding piece 32 are smaller than the area of the bottom surface of the accommodating chamber 21, and the slider 321 can change position in the sliding hole 22 by the movement of the back cushion body 2 as seen from the continuous actions of fig. 13, 14 and 15.

As mentioned above, when the user wants to change the left and right positions of the backrest body 2, the engaging relationship between the engaging teeth 342 of the limiting teeth 34 and the ring teeth 336 of the gear plate 332 and the side teeth 334 of the main seat body 331 is released after the pressure control member 31 is pressed, so that the backrest body 2 is pushed to move left and right along the X-axis 20 direction, and the transverse sliding shaft group 33 is not moved in practice due to the combined relationship between the transverse sliding shaft group 33 and the lock bolt 11, the movable backrest body 2 and the slide control assembly 3 (except the transverse sliding shaft group 33) move left and right according to the hole shape arrangement direction of the longitudinal hole 322, as shown in fig. 16 to 18, and assisted by fig. 5, 5A, 11 to 13; furthermore, if the user wants to change the swinging direction of the backrest cushion body 2, instead of adjusting the backrest cushion body back and forth and left and right, the same procedure is to release the meshing relationship between the meshing portion 342 of each limiting tooth 34 and the ring tooth row 336 of the toothed disc 332 and the side tooth row 334 of the main seat 331 after the pressure control member 31 is pressed, at this time, the backrest cushion body 2 is directly pushed to swing, because the main seat 331 and the toothed disc 332 in the transverse sliding shaft set 33 are pivotally movable with respect to each other, and the toothed disc 332 and the lock bolt 11 are fixedly locked, the rotation of the backrest cushion body 2 actually pivots the main seat 331 with respect to the toothed disc 332, so that the backrest cushion body 2 can swing between the X-axis 20 and the Y-axis 30, as shown in fig. 19 to 21, and assisted by fig. 5, 5A, and fig. 11 to 13. However, after the above-mentioned adjustment in each direction, the user only needs to release the pressing force on the pressure controlling member 31, and then the user can return to the original position by the release of the elastic energy of the elastic columns 352 disposed at one end of the base substrate 35, and at the same time, the limiting teeth 34 also return to the original position by the elastic force of the elastic members 343, and the limiting teeth 34 are also displaced toward the transverse sliding shaft set 33 by the combination of the protrusions 341 and the tracks 353, so that the engaging teeth 342 of the limiting teeth 34 can engage with the ring teeth 336 of the toothed disc 332 and the side teeth 334 of the main seat 331, thereby limiting the adjusted position of the back cushion body 2, so that the user's hand can be placed on the back cushion body 2 in a most comfortable manner, as shown in fig. 2, 6, 16, and 19.

According to the above description, a further detailed feature of the present invention is that the cushion body 2 further includes a bottom shell 24 and a soft support 25, the bottom shell 24 is box-shaped, the soft support 25 covers the bottom shell 24, the through hole 23 and the sliding hole 22 are disposed on the bottom shell 24, a slot 251 is recessed on one side of the soft support 25, the bottom shell 24 is inserted into the slot 251 to form a containing chamber 21, and a user's hand can rest on the soft support 25, as shown in fig. 4; in addition, the pressure control member 31 can drive and control the bottom substrate 35 to act together, mainly by the bottom substrate 35 in the end of assembling the pressure control member 31 further has a buckle ditch block 354, the buckle ditch block 354 is L-shaped, and the pressure control member 31 further includes a pressure control portion 311 and a buckle portion 312, the pressure control portion 311 one end exposed out of the through hole 23 another end connected to the buckle portion 312, the buckle portion 312 is J-shaped and corresponding to the buckle ditch block 354 concave a buckle groove 313, the pressure control member 31 with the buckle groove 313 buckle the buckle ditch block 354, and with the pressure control portion 311 push and pressure the bottom substrate 35 toward the end with each elastic column 352 move, so that each elastic column 352 elastically supports the wall of the bottom substrate 24 and elastic force, and when the pressure control portion 311 disappears, the bottom substrate 35 by each elastic column 352 elastic force pushing the elastic storage 35 to reset, the next time the pressure control member 31 is pressed, see fig. 5, 6, 8, 10, 12 and 13.

In order to maintain the positioning of the backrest cushion body 2 after the adjustment position and prevent intentional movement, the buckling part 312 of the pressure control member 31 is further provided with a tooth 314 at the opposite end provided with the buckling groove 313, the longitudinal sliding piece 32 is further provided with a long tooth row member 325 at one side provided with a plurality of clamping frames 323, the long tooth row member 325 is adjacent to the surrounding wall 324, the pressure control member 31 is inserted into the through hole 23 by the buckling part 312, the pressure control member 31 is buckled with the buckling groove 313 to form a buckling groove block 354, the tooth 314 is engaged with the long tooth row member 325, the pressing and releasing of the pressure control member 31 controls the engagement relationship between the tooth 314 and the long tooth row member 325 and the engagement relationship between the two limit tooth pieces 34 and the transverse sliding shaft group 33, and the pressing of the pressure control member 31 can be released after the adjustment position of the backrest cushion body 2 is confirmed, at this time, the tooth 314 and the long tooth row member 325 are engaged with each other, thereby, the adjusted position of the back cushion body 2 can be limited, as shown in fig. 5, 5A, 9 and 12.

It should be noted that, in order to keep the two limit teeth 34 stable and smooth in moving without separation, a plurality of rail grooves 344 are further concavely provided on one side of the two limit teeth 34 corresponding to the vertical sliding piece 32, a plurality of rail blocks 326 are convexly provided on the vertical sliding piece 32 corresponding to each rail groove 344 of the two limit teeth 34, each rail block 326 is inserted into each rail groove 344 to limit the set of the two limit teeth 34, when the pressure control member 31 is pressed to drive the bottom substrate 35 to move, the movement of the two limit teeth 34 is controlled by the cooperation of each rail 353 and each bump 341, and the movement of each limit teeth 34 is allowed to pass through the combination of each rail groove 344 and each rail block 326, so that each limit tooth 34 can be stably moved without deviation, please refer to fig. 13 and assist fig. 5 and 5A.

Finally, the main components of the present invention are that the transverse sliding shaft set 33, through the use of the transverse sliding shaft set 33, can change the position of the back cushion body 2 in the front-back direction, left-right direction, and further can further penetrate an assembly hole 337 on the bottom surface of the arc groove 333 of the main seat body 331, the hole shape of the assembly hole 337 is circular, the gear plate 332 further includes an upper disk part 332A and a lower pivot part 332B, the lower pivot part 332B of the gear plate 332 is inserted into the assembly hole 337, so that the gear plate 332 and the main seat body 331 form a pivot relationship, the upper disk part 332A is attached to the bottom surface of the arc groove 333, the shaft hole 335 is divided into a circular segment 335A and a square segment 335B corresponding to the upper disk part 332A and the lower pivot part 332B, the shape of the positioning part 111 of the lock bolt 11 is the same as the hole shape of the square segment 335B, the shape of the pivot part 112 is the same as the hole shape of the circular segment 335A, by such a configuration, the toothed disc 332 and the lock bolt 11 are securely engaged and combined, so that the main seat body 331 can securely rotate relative to the toothed disc 332 when the backrest 2 rotates along the X-axis 20 and the Y-axis 30, and the problem of the rotation of the toothed disc 332 to affect the rotation of the backrest 2 can be prevented, as shown in fig. 3, 5A, 20 and 21. Each card holder 323 disposed on the vertical sliding piece 32 is in an inverted L shape, a card slot 327 is formed between each card holder 323 and the vertical sliding piece 32, and both ends of the bottom substrate 35 are inserted into the card slots 327, so that the bottom substrate 35 is firmly disposed on the vertical sliding piece 32 to prevent falling off, as shown in fig. 5.

To summarize, the displacement of the bottom substrate 35 is controlled by the pressing of the pressure control member 31, and the engagement between the two limiting teeth 34 and the transverse sliding shaft set 33 is released, so that the position of the backrest cushion body 2 can be adjusted, when the backrest cushion body 2 moves along the Y-axis 30, the sliding block 321 at the bottom of the longitudinal sliding piece 32 can change the position in the sliding hole 22 due to the movement of the backrest cushion body 2; when the cushion body 2 moves along the X-axis 20, the transverse sliding shaft set 33 is combined with the lock bolt 11, so that the movement of the cushion body 2 changes the position of the transverse sliding shaft set 33 in the transverse hole 351; when the backrest cushion body 2 swings along the X-axis 20 and the Y-axis 30, the gear plate 332 and the lock bolt 11 of the transverse sliding shaft set 33 are engaged, so that the main seat body 331 pivots relative to the gear plate 332, and the swinging of the backrest cushion body 2 can change the position of the main seat body 331 relative to the gear plate 332; after the adjustment of the above-mentioned actions is confirmed, the pressing on the pressure control member 31 is released, so that the engaging teeth 342 of the two limiting teeth 34 engage with the side teeth row 334 of the main seat 331 and the ring teeth row 336 of the toothed disc 332, thereby completing the adjustment of the backrest cushion body 2, and users with different arm lengths can lift the backrest cushion body 2 to the most suitable position according to the length of the hand, the action posture of the hand, etc. through the above-mentioned adjustment, thereby achieving the best comfort.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and all simple modifications, equivalent variations and modifications made to the above embodiment according to the technical spirit of the present invention still fall within the scope of the technical solution of the present invention.

Claims

1. The utility model provides a handrail cushion of utensil multidirectional adjustment, it installs the top at a handle of holding up, its characterized in that includes:

a bottom disc piece, which is sealed and assembled on the top end surface of the holding handle and is mutually locked, the top surface of the bottom disc piece is further provided with a lock bolt in a protruding way, one end of the lock bolt, which is connected with the bottom disc piece, is a positioning part, and the opposite end is a pivot part;

a cushion body which is arranged at the top end of the holding handle and is abutted against the chassis sheet, a containing chamber is arranged in the cushion body, a slide hole is arranged at the bottom of the containing chamber, a through hole is arranged at the side edge of the containing chamber, and the lock bolt of the bottom sheet is penetrated through the slide hole and is positioned in the containing chamber;

a sliding control assembly, which is arranged in the containing chamber, the sliding control assembly comprises a control pressing piece, a longitudinal sliding piece, a transverse sliding shaft group, two limiting tooth sheets and a bottom substrate, one surface of the longitudinal sliding piece is attached to the bottom surface of the containing chamber, the longitudinal sliding piece is further convexly provided with a sliding block corresponding to the sliding hole, the sliding block is further provided with a longitudinal hole corresponding to the lock bolt, the sliding block moves in the sliding hole, and the lock bolt moves along the longitudinal hole; in addition, two ends of the other side of the longitudinal sliding sheet are respectively provided with a plurality of clamping frames at intervals, and a surrounding wall is arranged to surround and enclose the plurality of clamping frames;

in addition, the two ends of the bottom substrate are respectively clamped on the clamping frames, the bottom substrate is provided with a transverse hole corresponding to the longitudinal hole, one end of the bottom substrate is clamped with the pressure control piece, the other end of the bottom substrate is convexly provided with a plurality of elastic columns, one end of each elastic column is connected with the bottom substrate, the other end of each elastic column is propped against the inner wall of the containing chamber, and one end of the pressure control piece is clamped with the bottom substrate, and the other end of the pressure control piece penetrates through the through hole;

the two limit tooth sheets are respectively clamped between the base sheet and the longitudinal sliding sheet, one sides of the two limit tooth sheets corresponding to the base sheet are further provided with a convex block in a protruding mode respectively, the base sheet is provided with two tracks respectively corresponding to the convex blocks of the two limit tooth sheets, the two tracks extend downwards from one end of the base sheet provided with a plurality of elastic columns and then extend towards two sides, the two limit tooth sheets move on the two tracks by the convex blocks and are close to and far away from each other, one sides of the two limit tooth sheets corresponding to each other are respectively provided with a tooth-meshing part, the opposite ends of the two limit tooth sheets provided with the tooth-meshing part respectively extend to form an elastic part, one end of each elastic part is connected with the limit tooth sheet, and the other end of each elastic part is elastically abutted to the surrounding wall;

the transverse sliding shaft group is sleeved on the lock bolt and positioned between the two limiting tooth sheets and in the transverse hole, the transverse sliding shaft group further comprises a main seat body and a gear disc piece, the main seat body is concavely provided with an arc groove, one side of the main seat body is provided with a tooth meshing part with one side of which the gear row meshes with any one of the two limiting tooth sheets, the gear disc piece is arranged in the arc groove of the main seat body and is penetrated with a shaft hole, the hole pattern of the shaft hole respectively corresponds to the positioning part and the pivot joint part, the gear disc piece swings relative to the main seat body in a pivot way, and one side of the gear disc piece is provided with a ring gear row which meshes with the tooth part of the other limiting tooth sheet;

the back cushion body can be adjusted in a front-back, left-right and rotating displacement mode by taking the handle as an axis through the cooperation of the longitudinal hole and the transverse sliding shaft group, the cooperation of the sliding block of the longitudinal sliding sheet and the through hole and the pivoting cooperation between the main seat body and the fluted disc piece by releasing the engagement between the two limiting tooth sheets and the transverse sliding shaft group through the pressing of the pressure control piece.

2. The armrest cushion with multidirectional adjustment as claimed in claim 1, wherein the cushion body further comprises a bottom shell member and a soft rest member, the through hole and the sliding hole are disposed on the bottom shell member, and a slot is recessed on one side of the soft rest member, and the bottom shell member is inserted into the slot to form a receiving chamber.

3. The armrest cushion according to claim 1, wherein the bottom substrate further has a groove block at an end thereof connected to the pressure control member, the pressure control member further comprises a pressure control portion and a fastening portion, one end of the pressure control portion exposed from the through hole is connected to the fastening portion, the fastening portion is recessed with a fastening groove corresponding to the groove block, the pressure control member fastens the groove block with the fastening groove, and the pressure control portion pushes the bottom substrate to move toward an end thereof provided with the elastic posts.

4. The armrest cushion according to claim 2, wherein the bottom substrate further has a groove block at an end thereof connected to the pressure control member, and the pressure control member further comprises a pressure control portion and a fastening portion, wherein one end of the pressure control portion is exposed from the through hole and the other end thereof is connected to the fastening portion, the fastening portion is recessed with a fastening groove corresponding to the groove block, the pressure control member fastens the groove block with the fastening groove and drives the bottom substrate to move toward an end thereof provided with the elastic posts by the pressing of the pressure control portion.

5. The armrest cushion with multidirectional adjustment as set forth in claim 3 or 4, wherein said engaging portion of said pressing control member is further provided with a tooth portion at an opposite end thereof provided with said engaging slot, and said longitudinal slide is further provided with a long row of teeth at a side thereof provided with a plurality of holders, said long row of teeth being adjacent to said surrounding wall, said pressing control member being inserted into said through hole with said engaging portion, and said pressing control member engaging said groove block with said engaging slot and engaging said long row of teeth with said tooth portion, and pressing and releasing of said pressing control member controlling an engaging relationship between said tooth portion and said long row of teeth and an engaging relationship between said two limit tooth portions and said transverse slide shaft group.

6. The armrest cushion with multidirectional adjustment as set forth in claim 5, wherein said two position-limiting teeth are further provided with a plurality of grooves corresponding to one side of said longitudinal sliding piece, and a plurality of corresponding rail blocks are protruded from each groove of said two position-limiting teeth, and each rail block is inserted into each groove to limit the assembly of said two position-limiting teeth.

7. The armrest cushion with multidirectional adjustment of claim 6, wherein an assembly hole further penetrates through the bottom surface of the arc groove slot of the main seat body, the toothed disc further comprises an upper disc part and a lower pivot part, the lower pivot part of the toothed disc is inserted into the assembly hole, the upper disc part is attached to the bottom surface of the arc groove, the shaft hole is divided into a circular section and a square section corresponding to the upper disc part and the lower pivot part, the positioning part of the lock bolt has the same shape as the hole pattern of the square section, and the pivot part has the same shape as the hole pattern of the circular section.

8. The armrest cushion with multidirectional adjustment as claimed in claim 7, wherein a slot is formed between each of said clamping frames and said longitudinal sliding piece, and two ends of said bottom substrate are embedded in said slots.