CN111409530A - Headrest structure of seat - Google Patents

Abstract

The invention discloses a seat headrest structure, which comprises a fixed plate, an adjusting assembly and a headrest, wherein the adjusting assembly comprises a moving piece, a rotating piece and a locking piece, the moving piece of the adjusting assembly is movably arranged on the fixed plate along the front-back direction, the moving piece is also provided with a plurality of first clamping grooves which are arranged at intervals along the front-back direction, one end of the rotating piece is matched with the moving piece to realize the conversion of the rotation of the rotating piece and the movement of the moving piece, one end of the rotating piece, which is matched with the moving piece, is rotatably arranged relative to the fixed plate, the other end of the rotating piece can be connected to the headrest in a sliding manner along the up-down direction perpendicular to the front-back direction, and the locking piece can be movably arranged on. The seat headrest structure can realize the front-back adjustment of the position of the headrest to meet the requirements of different users, and the adjusting component can be arranged between the headrest and the back decorating plate to ensure that the back decorating plate cannot extend to the position of the headrest, so that the whole seat headrest structure is simple in shape.

Description

Seat headrest structure

technical field

The invention relates to the technical field of automobile seats, in particular to a seat headrest structure.

Background technique

With the vigorous development of the automobile industry, people have put forward higher requirements for the comfort of car seats. In addition to the safety function of protecting the human head, the car seat headrest also requires high comfort. Different people have different requirements for the front and rear position and pitch angle of the headrest, and it is difficult for general seat headrests to meet their comfort requirements.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide an adjustable and comfortable seat headrest structure.

The present invention provides a seat headrest structure, comprising a fixing plate, an adjusting assembly and a headrest, the adjusting assembly includes a moving part, a rotating part and a locking piece, and the moving part of the adjusting assembly can move in the front-rear direction It is arranged on the fixed plate, the moving member is further provided with a plurality of first clamping grooves spaced along the front and rear directions, and one end of the rotating member cooperates with the moving member to realize the rotating member. The conversion between the rotation and the movement of the moving member, and the one end of the rotating member that matches the moving member is rotatably arranged relative to the fixed plate, and the other end of the rotating member can be vertically perpendicular to the front-rear direction. The locking piece is slidably connected to the headrest, and the locking piece is movably arranged on the fixing plate along the up-down direction, so that the locking piece can be locked into or out of the first locking slot.

In one embodiment, the moving member is a rack, the rotating member is a gear rod, one end of the gear rod of the adjustment assembly is provided with gear teeth, and the gear teeth of the gear rod are engaged with the gear rack , and the end of the gear rod with the gear teeth can be rotatably arranged relative to the fixing plate.

In one embodiment, the first card slot includes a slope and a vertical surface, the slope is located on a side of the first card slot close to the headrest, and the vertical surface is located on the first card slot. The slot is away from the side of the headrest.

In one of the embodiments, the moving member is further provided with a second card slot, two side surfaces of the second card slot are vertical surfaces, and the second card slot is located in the front-rear direction. The first card slot is away from the side of the headrest.

In one of the embodiments, the adjustment assembly further includes an elastic member, the elastic member is connected between the locking piece and the fixing plate, and is used for applying a movement toward the moving member to the locking piece. side force.

In one embodiment, the adjustment assembly further includes a pull wire, and one end of the pull wire is connected to the locking piece.

In one embodiment, a chute is defined on the headrest, and the other end of the rotating member is slidably accommodated in the chute.

In one embodiment, the seat headrest structure further includes a back trim panel, the back trim panel and the headrest are arranged back-to-back, and the fixing plate is fixed on the back trim panel.

In one embodiment, the seat headrest structure includes two adjustment assemblies, the fixing plate includes an upper end and a lower end, and the two adjustment assemblies are symmetrically arranged on the upper end and the lower end of the fixing plate. the lower end.

In the seat headrest structure provided by the present invention, the parameters of the motor model change with the current, so that the seat headrest structure is more consistent with the actual motor control model, and the simulation effect is good.

Description of drawings

FIG. 1 is a schematic structural diagram of a seat headrest structure according to an embodiment of the present invention.

FIG. 2 is a partial enlarged view of the structure of the seat headrest shown in FIG. 1 .

FIG. 3 is a partial enlarged schematic view of the seat headrest structure shown in FIG. 1 when it moves forward.

FIG. 4 is a partial enlarged schematic view of the seat headrest structure shown in FIG. 1 when it moves backwards.

FIG. 5 is a schematic diagram of a position change of the seat headrest structure shown in FIG. 1 .

FIG. 6 is a schematic diagram of the seat headrest structure shown in FIG. 1 after the position is adjusted forward.

FIG. 7 is a schematic diagram of the seat headrest structure shown in FIG. 1 after adjusting the pitch angle.

Detailed ways

In order to further illustrate the technical means and effects adopted by the present invention to achieve the predetermined purpose of the invention, the specific embodiments, structures, features and effects of the present invention are described in detail below in conjunction with the accompanying drawings and examples.

As shown in FIGS. 1 and 2 , a seat headrest structure according to an embodiment of the present invention includes a fixing plate 11 , an adjustment assembly 13 and a headrest 15 , and the adjustment assembly 13 includes a rack 132 , a gear rod 134 and a locking piece 136 .

The seat headrest structure further includes a back trim panel 17, and the back trim panel 17 and the headrest 15 are arranged back to back.

The fixing plate 11 is fixed on the back trim plate 17 . Specifically, the fixing plate 11 includes an upper end 112 and a lower end 114 .

The rack 132 of the adjusting assembly 13 is provided on the fixing plate 11 so as to be movable in the front-rear direction. The rack 132 is also provided with a plurality of first engaging slots 1322 spaced in the front-rear direction. Specifically, the first slot 1322 includes an inclined surface and a vertical surface, the inclined surface is located on the side of the first slot 1322 close to the headrest 15 , and the vertical surface is located at the side of the first slot 1322 away from the headrest 15 . The rack 132 is further provided with a second slot 1324, two side surfaces of the second slot 1324 are vertical surfaces, and the second slot 1324 is located on the side of the first slot 1322 away from the headrest 15 in the front-rear direction . By arranging the second locking slot 1324, the headrest 15 can have a most rearward locking position, and the front and rear positions of the headrest 15 cannot be adjusted by pulling the headrest 15 forward at this time.

One end of the gear rod 134 of the adjusting assembly 13 is provided with gear teeth, the gear rod 134 is meshed with the rack 132 , and the gear rod 134 is provided with the gear teeth at one end rotatably relative to the fixed plate 11 . The other end of the gear lever 134 is slidably connected to the headrest 15 in the up-down direction perpendicular to the front-rear direction.

The locking piece 136 is disposed on the fixing plate 11 so as to be movable in an up-down direction perpendicular to the front-rear direction, so that the locking piece 136 can be engaged or disengaged from any of the first locking grooves 1322 and the second locking grooves 1324 . A hook 1362 is also provided on the locking piece 136 . When the rack 132 moves forward, the inclined surface of the first locking slot 1322 enables the locking piece 136 to be disengaged from the first locking slot 1322. When the rack 132 moves backward, the vertical surface of the first locking slot 1324 makes The locking piece 136 cannot escape from the first locking slot 1322 , and the locking piece 136 locks the rack 132 and cannot move, and also locks the headrest 15 from moving.

The adjusting assembly 13 further includes an elastic piece 138 , the elastic piece 138 is connected between the locking piece 136 and the fixing plate 11 , and exerts a force toward the side of the rack 132 on the locking piece 136 .

The adjustment assembly 13 further includes a pull wire (not shown), one end of the pull wire is connected to the locking piece 136 . When the pulling wire is pulled, the locking piece 136 can be disengaged from the first locking groove 1322 or the second locking groove 1324 . Specifically, the pull wire may be tied to the hook 1362 of the locking piece 136 .

A chute 152 is defined on the headrest 15 , and the other end of the gear rod 134 is slidably accommodated in the chute 152 . Specifically, a sliding block may be provided on the other end of the gear rod 134 , the other end of the gear rod 134 is rotatably connected to the sliding block, and the sliding block is slidably accommodated in the chute 152 .

In this embodiment, the seat headrest structure may include two adjustment assemblies 13 , and by adjusting only one of the two adjustment assemblies 13 , the pitch adjustment of the headrest 15 can be realized. Specifically, the two adjustment assemblies 13 may be symmetrically disposed on the upper end 112 and the lower end 114 of the fixing plate 11 . It can be understood that the number of adjustment components 13 can also be one or other, which can be set as required.

Referring to FIG. 3 , when the headrest needs to be adjusted forward, a forward force can be applied to the headrest 15 by hand to pull the headrest 15 to move forward, driving the gear rod 134 to rotate counterclockwise, and the gear rod 134 is engaged with the rack 132 The rack 132 is moved to the right (ie backward) in the figure, and at this time, the locking piece 136 and the first slot 1322 are overlapped by the inclined plane and cannot be limited, the rack 132 can move smoothly, and the locking piece 136 Come out of the first card slot 1322 . At this time, the head is leaned against the headrest 15 again, and a backward force is applied to the headrest 15, thereby pushing the gear rod 134 to rotate, the rack 132 moves to the left, and the rack 132 moves to the nearest first slot. When 1322 or the second locking slot 1324 is aligned with the locking piece 136, the locking piece 136 is locked into the first locking slot 1322 or the second locking slot 1324, that is, the headrest 15 is adjusted to a proper position.

Referring to FIG. 4 , when the headrest needs to be adjusted backwards, since the rack 132 is locked by the locking piece 136 when the headrest is pushed backwards, the pull wire can be pulled so that the locking piece 136 is locked from the first latch of the rack 132 At the same time, the head leans back toward the headrest 15, and a backward force is applied to the headrest 15, thereby pushing the gear rod 134 to rotate, and the rack 132 moves to the left until the rack 132 moves to its nearest first position. When a locking slot 1322 or a second locking slot 1324 is aligned with the locking piece 136, the locking piece 136 is locked into the first locking slot 1322 or the second locking slot 1324, that is, the headrest 15 is adjusted to an appropriate position. Please refer to FIG. 5 , which shows a schematic diagram when the headrest is located at two different positions. It can be seen that the front and rear positions of the headrest can be adjusted through the above seat headrest structure.

Please refer to FIG. 5 and FIG. 6 at the same time. When adjusting the position of the headrest forward and backward, the two adjusting components 13 act simultaneously.

Referring to FIG. 7 , when only one of the two adjustment components 13 is adjusted, the pitch angle adjustment of the headrest can be realized, which satisfies the needs of the user to a greater extent.

It can be understood that the cooperation between the rack 132 and the gear rod 134 in the adjustment assembly 13 can also be replaced by other structures, such as a worm gear structure, that is, the rack 132 can be replaced by other moving parts such as a worm, and the gear rod 134 can be replaced by a Other rotating parts such as worm gears are replaced.

In the seat headrest structure, the position of the headrest can be adjusted back and forth to meet the needs of different users, and the adjustment component can be arranged between the headrest and the back trim panel to ensure that the back trim panel does not extend to the head The structure of the headrest of the entire seat is simple and simple.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art, Within the scope of the technical solution of the present invention, when some changes or modifications can be made by using the technical content disclosed above to be equivalent embodiments with equivalent changes, provided that the content of the technical solution of the present invention is not deviated from, the technical essence of the present invention Any simple modifications, equivalent changes and modifications made in the above embodiments still fall within the scope of the technical solutions of the present invention.

Claims (10)

1. A seat headrest structure is characterized by comprising a fixed plate (11), an adjusting assembly (13) and a headrest (15), wherein the adjusting assembly (13) comprises moving parts, a rotating part and a locking piece (136), the moving parts of the adjusting assembly (13) are movably arranged on the fixed plate (11) along the front-back direction, the moving parts are further provided with a plurality of first clamping grooves (1322) which are arranged at intervals along the front-back direction, one end of the rotating part is matched with the moving parts to realize the conversion of the rotation of the rotating part and the movement of the moving parts, one end of the rotating part matched with the moving parts is rotatably arranged relative to the fixed plate (11), the other end of the rotating part can be connected to the headrest (15) in a sliding manner along the up-down direction perpendicular to the front-back direction, and the locking piece (136) is movably arranged on the fixed plate (11) along the up-down direction, so that the locking sheet (136) can be clamped into or pulled out of the first clamping groove (1322).

2. The seat headrest structure according to claim 1, wherein the moving member is a rack gear (132), the rotating member is a gear rod (134), one end of the gear rod (134) of the adjustment assembly (13) is provided with gear teeth, the gear teeth of the gear rod (134) are engaged with the rack gear (132), and one end of the gear rod (134) provided with the gear teeth is rotatably provided with respect to the fixed plate (11).

3. The seat headrest structure according to claim 1, characterized in that the first slot (1322) includes a sloped surface located on a side of the first slot (1322) closer to the headrest (15) and an upright surface located on a side of the first slot (1322) farther from the headrest (15).

4. The seat headrest structure according to claim 3, wherein a second catching groove (1324) is further provided on the moving member, both side surfaces of the second catching groove (1324) are vertical surfaces, and the second catching groove (1324) is located on a side of the first catching groove (1322) away from the headrest (15) in the front-rear direction.

5. The seat headrest structure according to claim 1, wherein the adjustment assembly (13) further includes an elastic member (138), the elastic member (138) being connected between the locking piece (136) and the stationary plate (11) for applying a force to the locking piece (136) toward a side of the moving member.

6. The seat headrest structure according to claim 1, characterized in that the adjustment assembly (13) further includes a pull wire having one end connected to the locking piece (136).

7. The seat headrest structure according to claim 1, wherein a slide groove (152) is formed in the headrest (15), and the other end of the rotary member is slidably received in the slide groove (152).

8. The seat headrest structure according to claim 7, characterized in that a slider may be provided on the other end of the rotary member, the other end of the rotary member being rotatably connected to the slider, the slider being slidably received in the slide groove (152).

9. The seat headrest structure according to claim 1, characterized in that the seat headrest structure further comprises a back trim plate (17), the back trim plate (17) being disposed back-to-back with the headrest (15) in front-to-back, the fixing plate (11) being fixed to the back trim plate (17).

10. The seat headrest structure according to claim 1, characterized in that the seat headrest structure comprises two of the adjustment assemblies (13), the stationary plate (11) comprises an upper end (112) and a lower end (114), and the two adjustment assemblies (13) are symmetrically disposed at the upper end (112) and the lower end (114) of the stationary plate (11).

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