CN113911001A - Automobile headrest with adjustable pitching angle and working method thereof - Google Patents
Automobile headrest with adjustable pitching angle and working method thereof Download PDFInfo
- Publication number
- CN113911001A CN113911001A CN202111387364.6A CN202111387364A CN113911001A CN 113911001 A CN113911001 A CN 113911001A CN 202111387364 A CN202111387364 A CN 202111387364A CN 113911001 A CN113911001 A CN 113911001A
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- headrest
- hydraulic cylinder
- connecting rod
- fixing plate
- scissors
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- 238000000034 method Methods 0.000 title claims abstract description 12
- 230000007246 mechanism Effects 0.000 claims abstract description 68
- 230000008569 process Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000005266 casting Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/80—Head-rests
- B60N2/806—Head-rests movable or adjustable
- B60N2/838—Tiltable
- B60N2/853—Tiltable characterised by their adjusting mechanisms, e.g. electric motors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/80—Head-rests
- B60N2/806—Head-rests movable or adjustable
- B60N2/865—Head-rests movable or adjustable providing a fore-and-aft movement with respect to the occupant's head
Abstract
The invention relates to an automobile headrest with an adjustable pitching angle and a working method thereof, and the automobile headrest comprises a headrest body, a link mechanism and a headrest fixing plate which are sequentially arranged from front to back, wherein the link mechanism comprises a pair of adjusting link groups which are symmetrically distributed up and down, the front end and the back end of each adjusting link group are respectively hinged with the headrest body and the headrest fixing plate, a horizontally arranged first scissor mechanism is connected between the front end of each adjusting link group and the headrest fixing plate, the first scissor mechanism is driven by a power mechanism to stretch and retract along the front-back direction, the scissor mechanism drives the adjusting link groups to swing up and down while stretching, and the pitching adjustment of the headrest body is realized by utilizing the respective up-down swinging movement of the two adjusting link groups. The invention has reasonable design, is convenient to adjust the pitching angle of the automobile headrest, is convenient to use and improves the use comfort of the headrest.
Description
The technical field is as follows:
the invention belongs to the technical field of automobile headrests, and particularly relates to an automobile headrest with an adjustable pitching angle and a working method thereof.
Background art:
in the world, the automobile technology is rapidly improved, the automobile seat as an important component of an automobile becomes a systematic product integrating multiple technologies, the safety and the comfort of the automobile seat are greatly improved, but the pitching angle of the automobile headrest is not perfect, and the pitching angle of the automobile headrest is inconvenient to adjust according to the use requirement.
The invention content is as follows:
the invention aims to solve the problems in the prior art, namely the invention provides the automobile headrest with the adjustable pitching angle and the working method thereof, and the automobile headrest is reasonable in design and convenient to adjust the pitching angle.
In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides a every single move angularly adjustable automotive headrest, includes headrest body, link mechanism and the headrest fixed plate that sets gradually backward in the past, link mechanism includes a pair of upper and lower symmetric distribution's regulation connecting rod group, the preceding, back both ends of adjusting the connecting rod group are articulated mutually with headrest body and headrest fixed plate respectively, are connected with the first scissors mechanism that the level set up between the front end of every regulation connecting rod group and the headrest fixed plate, first scissors mechanism is driven by power unit and is stretched out and drawn back along the fore-and-aft direction, it swings from top to bottom to drive the regulation connecting rod group when scissors mechanism is flexible.
Furthermore, the adjusting connecting rod group comprises two adjusting connecting rods which are symmetrically distributed left and right; first scissors mechanism includes two scissors units corresponding with the position of two adjusting connecting rods, the front end of scissors unit is articulated with the front end of adjusting connecting rod, and the rear end of scissors unit is equipped with hinged end and removal end, the hinged end is articulated mutually with the leading flank of headrest fixed plate, the removal end is driven by power unit and is followed vertical removal to it is flexible along the fore-and-aft direction to realize scissors unit.
Furthermore, the left end and the right end of the headrest fixing plate are both provided with vertical sliding chutes; the power mechanism comprises two T-shaped connecting rods which are symmetrically distributed up and down and are positioned on the rear side of the headrest fixing plate, the T-shaped connecting rods are driven by the driving assembly to move vertically, the left end and the right end of the horizontal section of each T-shaped connecting rod are respectively and fixedly connected with a sliding block in sliding fit with the vertical sliding groove, and the front end of each sliding block penetrates through the vertical sliding groove and is hinged with the moving end of the scissors fork unit.
Furthermore, the driving assembly comprises a first hydraulic cylinder and a second hydraulic cylinder which are respectively arranged on the left side and the right side of the vertical section of the T-shaped connecting rod, the first hydraulic cylinder and the second hydraulic cylinder are horizontally arranged and are vertically distributed in a staggered manner, a telescopic rod of the first hydraulic cylinder is hinged with one end of a first connecting rod, and the other end of the first connecting rod is hinged with the vertical section of the T-shaped connecting rod; the telescopic link of second pneumatic cylinder is articulated mutually with the one end of a second connecting rod, the other end of second connecting rod is articulated with the vertical section of T type connecting rod.
Furthermore, vertical guide sleeves are symmetrically arranged in the middle of the upper end and the lower end of the rear side face of the headrest fixing plate, and the vertical section of the T-shaped connecting rod penetrates through the vertical guide sleeves in a sliding mode.
Furthermore, a vertical guide rail is installed in the vertical sliding groove, the sliding block is connected with the vertical guide rail in a sliding mode, and a guide rail clamp is installed on the sliding block.
Furthermore, the pair of adjusting connecting rod groups are distributed in a trumpet shape.
Furthermore, a second scissors mechanism is horizontally arranged between the headrest fixing plate and the seat backrest, the front end of the second scissors mechanism is hinged to the middle portions of the upper end and the lower end of the rear side face of the headrest fixing plate, the upper portion of the rear end of the second scissors mechanism is hinged to the seat backrest, the lower portion of the rear end of the second scissors mechanism is connected with a vertically arranged driving hydraulic cylinder, and the driving hydraulic cylinder drives the second scissors mechanism to stretch out and draw back along the front-back direction.
Furthermore, the front end of the adjusting connecting rod is provided with a sliding groove extending along the length direction of the adjusting connecting rod, a sliding part is connected in the sliding groove in a sliding mode, and the sliding part is hinged to the front end of the scissors fork unit.
The invention adopts another technical scheme that: a working method of an automobile headrest with an adjustable pitching angle comprises the following steps:
(1) headrest front and back adjustment: the telescopic rod of the driving hydraulic cylinder extends upwards, the driving hydraulic cylinder drives the second scissor mechanism to extend forwards, and the second scissor mechanism drives the headrest body to move forwards through the headrest fixing plate; when the telescopic rod of the driving hydraulic cylinder is contracted downwards, the driving hydraulic cylinder drives the second scissor mechanism to contract backwards, and the second scissor mechanism drives the headrest body to move backwards through the headrest fixing plate;
(2) forward inclination of the headrest: the first hydraulic cylinder and the second hydraulic cylinder which are positioned below the headrest fixing plate move, a telescopic rod of the first hydraulic cylinder extends, a telescopic rod of the second hydraulic cylinder contracts, the T-shaped connecting rod drives the sliding block to move upwards, the sliding block drives the scissor unit to contract backwards when moving upwards, and the adjusting connecting rod positioned below swings upwards at the moment, so that the lower end of the headrest body swings backwards, and forward tilting adjustment is realized; after the adjustment is finished, the guide rail clamp device fixes the sliding block;
(3) the headrest is tilted backwards: the first hydraulic cylinder and the second hydraulic cylinder which are positioned above the headrest fixing plate move, the telescopic rod of the first hydraulic cylinder extends, the telescopic rod of the second hydraulic cylinder contracts, the slide block is driven to move downwards through the T-shaped connecting rod, the scissor fork unit is driven to contract backwards when the slide block moves downwards, and the adjusting connecting rod positioned above the slide block swings downwards at the moment, so that the upper end of the headrest body swings backwards, and the backward-facing adjustment is realized; after the adjustment is finished, the guide rail clamp device fixes the sliding block.
Compared with the prior art, the invention has the following effects: the invention has reasonable design, is convenient to adjust the pitching angle of the automobile headrest, is convenient to use and improves the use comfort of the headrest.
Description of the drawings:
FIG. 1 is a schematic front view configuration of an embodiment of the present invention;
fig. 2 is a left side configuration diagram of the embodiment of the invention (the headrest body is omitted);
FIG. 3 is a schematic diagram of a right-view configuration of an embodiment of the present invention;
fig. 4 is a schematic view of the construction of the second scissors mechanism in connection with the embodiment of the present invention.
In the figure:
1-headrest body; 2-adjusting the connecting rod group; 3-headrest fixing plate; 4-adjusting the connecting rod; 5-a scissor unit; 50-a hinged end; 51-mobile end; 6-vertical sliding chute; 7-T shaped connecting rod; 70-horizontal segment; 71-vertical section; 8-a slide block; 9-a first hydraulic cylinder; 10-a second hydraulic cylinder; 11-a first link; 12-a second link; 13-vertical guide sleeves; 14-vertical guide rails; 15-a rail clamp; 16-a second scissor mechanism; 161-a second scissors mechanism hinged end; 17-driving the hydraulic cylinder; 18-chute.
The specific implementation mode is as follows:
the present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, are merely for convenience of description of the present invention, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.
As shown in fig. 1 to 3, the invention relates to an automobile headrest with adjustable pitching angle, which comprises a headrest body 1, a link mechanism and a headrest fixing plate 3, which are sequentially arranged from front to back, wherein the link mechanism comprises a pair of adjusting link groups 2 which are symmetrically distributed up and down, the front and back ends of the upper adjusting link group 2 are respectively vertically hinged with the upper end of the headrest body 1 and the upper end of the headrest fixing plate 3, the front and back ends of the lower adjusting link group 2 are respectively vertically hinged with the lower end of the headrest body 1 and the lower end of the headrest fixing plate 3, a horizontally arranged first scissor mechanism is connected between the front end of each adjusting link group 2 and the headrest fixing plate 1, the first scissor mechanism is driven by a power mechanism to extend and retract along the front-back direction, the scissor mechanism drives the adjusting link groups to swing up and down while extending and retracting, and the pitching adjustment of the headrest body is realized by the respective vertical swinging movement of the two adjusting link groups, the method specifically comprises the following steps: when the lower adjusting connecting rod group swings upwards under the driving of the backward contraction of the first scissor mechanism, the adjusting connecting rod group drives the lower end of the headrest body to swing backwards, so that the forward tilting adjustment is realized; the adjusting connecting rod group positioned below swings downwards under the driving of the first scissor mechanism to contract backwards, and at the moment, the adjusting connecting rod group drives the upper end of the headrest body to swing backwards, so that the backward-leaning adjustment is realized.
In this embodiment, each adjusting connecting rod group 2 comprises two adjusting connecting rods 4 which are symmetrically distributed left and right; first scissors mechanism includes two scissors units 5 corresponding with two adjusting link 4's position, the front end of scissors unit 5 is articulated with adjusting link 4's front end, and the rear end of scissors unit 5 is equipped with along vertical distribution's hinged end 50 and removal end 51, hinged end 50 is articulated mutually with the leading flank of headrest fixed plate 3, removal end 51 is followed vertical movement by power unit drive to it is flexible along the fore-and-aft direction to realize scissors unit.
Preferably, in order to avoid the jamming of the adjusting link 4 during the vertical swing, the front end of the adjusting link 4 is provided with a sliding groove 18 extending along the length direction of the adjusting link, a sliding part (not shown in the figure) is slidably connected in the sliding groove 18, the sliding part is hinged to the front end of the scissors unit 5, when the scissors unit 5 stretches and retracts along the front-back direction, the sliding part slides along the sliding groove under the driving of the scissors unit, and the scissors unit drives the adjusting link to swing through the sliding part in the sliding process.
In this embodiment, the left and right ends of the headrest fixing plate 3 are both provided with vertical sliding grooves 6, and the vertical sliding grooves are communicated along the front-back direction; the power mechanism comprises two T-shaped connecting rods 7 which are symmetrically distributed up and down and are positioned at the rear side of the headrest fixing plate 3, each T-shaped connecting rod 7 is driven by one driving assembly to move vertically, the left end and the right end of a horizontal section 70 of each T-shaped connecting rod 7 are respectively fixedly connected with a sliding block 8 in sliding fit with a vertical sliding groove 6, the front end of each sliding block 8 penetrates through the vertical sliding groove 6 and is hinged with a moving end 51 of each scissors unit 5, and the vertical movement of each sliding block is utilized to drive each scissors unit to stretch back and forth along the front direction.
In this embodiment, as shown in fig. 3, the driving assembly includes a first hydraulic cylinder 9 and a second hydraulic cylinder 10 respectively disposed at the left and right sides of a vertical section 71 of the T-shaped connecting rod 7, the first hydraulic cylinder 9 and the second hydraulic cylinder 10 are both horizontally disposed and vertically distributed in a staggered manner, a telescopic rod of the first hydraulic cylinder 9 is hinged to one end of a first connecting rod 11, and the other end of the first connecting rod 11 is hinged to the vertical section 71 of the T-shaped connecting rod 7; the telescopic rod of the second hydraulic cylinder 10 is hinged with one end of a second connecting rod 12, the other end of the second connecting rod 12 is hinged with the vertical section 71 of the T-shaped connecting rod 7, and the first connecting rod 11 and the second connecting rod 12 are both obliquely arranged. In operation, taking the first hydraulic cylinder 9 and the second hydraulic cylinder 10 located above the headrest fixing plate 3 as an example: when the telescopic rod of the first hydraulic cylinder 9 extends and the telescopic rod of the second hydraulic cylinder 10 contracts, the T-shaped connecting rod 7 moves downwards under the driving of the first connecting rod 11 and the second connecting rod 12; when the telescopic rod of the first hydraulic cylinder 9 is contracted and the telescopic rod of the second hydraulic cylinder 10 is extended, the T-shaped link 7 is driven by the first link 11 and the second link 12 to move upward. The same principle is also applied to the operation of the first hydraulic cylinder and the second hydraulic cylinder which are positioned below the headrest fixing plate, but the action directions are opposite, for example: when the first hydraulic cylinder extends and the second hydraulic cylinder contracts, the T-shaped connecting rod moves upwards, and otherwise, the T-shaped connecting rod moves downwards.
In this embodiment, in order to guide the vertical movement of the T-shaped connecting rod 7, vertical guide sleeves 13 are symmetrically arranged at the middle parts of the upper end and the lower end of the rear side surface of the headrest fixing plate 3, and a vertical section 71 of the T-shaped connecting rod 7 slidably penetrates through the vertical guide sleeves 13.
In this embodiment, in order to improve the accuracy of the vertical movement of the slider, a vertical guide rail 14 is installed in the vertical sliding groove 6, and the slider 8 is slidably connected with the vertical guide rail 14.
In this embodiment, in order to fix the slider 8 after moving, the slider 8 is provided with the rail clamp 15, and the rail clamp is engaged with the rail to fix the slider on the rail and prevent the slider from moving. It should be noted that the guide rail clamp is the prior art, and the structure of the guide rail clamp, the slide block, and the like is also the prior art, and the description is not repeated here.
In this embodiment, the pair of adjusting linkages 2 are distributed in a trumpet shape with an opening facing rearward.
In this embodiment, as shown in fig. 4, a second scissors mechanism 16 is horizontally disposed between the headrest fixing plate 3 and a seat back (not shown in the figure), a front end of the second scissors mechanism 16 is hinged to middle portions of upper and lower ends of a rear side surface of the headrest fixing plate 3, an upper portion of a rear end of the second scissors mechanism 16 is hinged to the seat back, a lower portion of the rear end of the second scissors mechanism 16 is connected to a vertically disposed driving hydraulic cylinder 17, and the driving hydraulic cylinder 17 drives the second scissors mechanism 16 to extend and retract along a front-back direction. When in work: the telescopic rod of the hydraulic cylinder 17 is driven to extend upwards, the hydraulic cylinder 17 is driven to drive the second scissors mechanism 16 to extend forwards, and the second scissors mechanism 16 drives the headrest body 1 to move forwards through the headrest fixing plate 3; when the telescopic rod of drive pneumatic cylinder 17 contracts downwards, drive pneumatic cylinder 17 drives second scissors mechanism 16 and contracts backward, and second scissors mechanism 16 passes through headrest fixed plate 3 and drives headrest body 1 and move backward, realizes the front and back position control of headrest in proper order.
The specific implementation process comprises the following steps:
(1) headrest front and back adjustment: the telescopic rod of the hydraulic cylinder 17 is driven to extend upwards, the hydraulic cylinder 17 is driven to drive the second scissors mechanism 16 to extend forwards, and the second scissors mechanism 16 drives the headrest body 1 to move forwards through the headrest fixing plate 3; when the telescopic rod of the driving hydraulic cylinder 17 contracts downwards, the driving hydraulic cylinder 17 drives the second scissors mechanism 16 to contract backwards, and the second scissors mechanism 16 drives the headrest body 1 to move backwards through the headrest fixing plate 3;
(2) forward inclination of the headrest: the first hydraulic cylinder 9 and the second hydraulic cylinder 10 which are positioned below the headrest fixing plate 3 act, the telescopic rod of the first hydraulic cylinder 9 extends, the telescopic rod of the second hydraulic cylinder 10 contracts, the slide block 8 is driven to move upwards through the T-shaped connecting rod 7, the scissor unit 5 is driven to contract backwards when the slide block 8 moves upwards, and the adjusting connecting rod 4 positioned below swings upwards at the moment, so that the lower end of the headrest body 1 swings backwards, and forward tilting adjustment is realized; after the adjustment is finished, the guide rail clamp 15 fixes the sliding block;
(3) the headrest is tilted backwards: the first hydraulic cylinder 9 and the second hydraulic cylinder 10 which are positioned above the headrest fixing plate 3 act, the telescopic rod of the first hydraulic cylinder 9 extends, the telescopic rod of the second hydraulic cylinder 10 contracts, the slide block 8 is driven to move downwards through the T-shaped connecting rod 7, the scissor unit 5 is driven to contract backwards when the slide block 8 moves downwards, and the adjusting connecting rod 4 positioned above swings downwards at the moment, so that the upper end of the headrest body 1 swings backwards, and the backward tilting adjustment is realized; after the adjustment is finished, the guide rail clamp device fixes the sliding block.
In this embodiment, the first scissor mechanism and the second scissor mechanism are both existing mature technologies, and are widely applied to lifting or telescopic structures, such as existing scissor lifts and the like, and the detailed description thereof is not repeated here.
The invention has the advantages that: the headrest body is tilted forwards or backwards by utilizing the extension and retraction of the scissor mechanism, so that the pitching adjustment of the headrest is realized, the use is convenient, and the use comfort of the headrest is improved; meanwhile, the front and rear positions of the headrest are adjusted through the scissors mechanism, and the use flexibility is further improved.
If the invention discloses or relates to parts or structures which are fixedly connected to each other, the fixedly connected parts can be understood as follows, unless otherwise stated: a detachable fixed connection (for example using bolts or screws) is also understood as: non-detachable fixed connections (e.g. riveting, welding), but of course, fixed connections to each other may also be replaced by one-piece structures (e.g. manufactured integrally using a casting process) (unless it is obviously impossible to use an integral forming process).
In addition, terms used in any technical solutions disclosed in the present invention to indicate positional relationships or shapes include approximate, similar or approximate states or shapes unless otherwise stated.
Any part provided by the invention can be assembled by a plurality of independent components or can be manufactured by an integral forming process.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention and not to limit it; although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art will understand that: modifications to the specific embodiments of the invention or equivalent substitutions for parts of the technical features may be made; without departing from the spirit of the present invention, it is intended to cover all aspects of the invention as defined by the appended claims.
Claims (10)
1. The utility model provides a every single move angle adjustable automotive headrest which characterized in that: including headrest body, link mechanism and the headrest fixed plate that sets gradually backward in the past, link mechanism includes a pair of upper and lower symmetric distribution's regulation linkage, the preceding, the back both ends of adjusting linkage are articulated mutually with headrest body and headrest fixed plate respectively, are connected with the first scissors mechanism that the level set up between the front end of every regulation linkage and the headrest fixed plate, first scissors mechanism is driven by power unit and is stretched out and drawn back along the fore-and-aft direction, it drives when the scissors mechanism is flexible and adjusts linkage and pendulum and change from top to bottom.
2. An automobile headrest with adjustable pitch angle according to claim 1, wherein: the adjusting connecting rod group comprises two adjusting connecting rods which are symmetrically distributed left and right; first scissors mechanism includes two scissors units corresponding with the position of two adjusting connecting rods, the front end of scissors unit is articulated with the front end of adjusting connecting rod, and the rear end of scissors unit is equipped with hinged end and removal end, the hinged end is articulated mutually with the leading flank of headrest fixed plate, the removal end is driven by power unit and is followed vertical removal to it is flexible along the fore-and-aft direction to realize scissors unit.
3. An automobile headrest with adjustable pitch angle according to claim 2, wherein: the left end and the right end of the headrest fixing plate are both provided with vertical sliding grooves; the power mechanism comprises two T-shaped connecting rods which are symmetrically distributed up and down and are positioned on the rear side of the headrest fixing plate, the T-shaped connecting rods are driven by the driving assembly to move vertically, the left end and the right end of the horizontal section of each T-shaped connecting rod are respectively and fixedly connected with a sliding block in sliding fit with the vertical sliding groove, and the front end of each sliding block penetrates through the vertical sliding groove and is hinged with the moving end of the scissors fork unit.
4. A pitch angle adjustable headrest for automobiles according to claim 3 wherein: the driving assembly comprises a first hydraulic cylinder and a second hydraulic cylinder which are respectively arranged on the left side and the right side of the vertical section of the T-shaped connecting rod, the first hydraulic cylinder and the second hydraulic cylinder are horizontally arranged and are vertically distributed in a staggered manner, a telescopic rod of the first hydraulic cylinder is hinged with one end of a first connecting rod, and the other end of the first connecting rod is hinged with the vertical section of the T-shaped connecting rod; the telescopic link of second pneumatic cylinder is articulated mutually with the one end of a second connecting rod, the other end of second connecting rod is articulated with the vertical section of T type connecting rod.
5. An automobile headrest with adjustable pitch angle according to claim 4, wherein: vertical guide sleeves are symmetrically arranged in the middle of the upper end and the lower end of the rear side face of the headrest fixing plate, and the vertical section of the T-shaped connecting rod penetrates through the vertical guide sleeves in a sliding mode.
6. A pitch angle adjustable headrest for automobiles according to claim 3 wherein: the vertical sliding groove is internally provided with a vertical guide rail, the sliding block is connected with the vertical guide rail in a sliding manner, and the sliding block is provided with a guide rail clamp.
7. An automobile headrest with adjustable pitch angle according to claim 1, wherein: the pair of adjusting connecting rod groups are distributed in a trumpet shape.
8. An automobile headrest with adjustable pitch angle according to claim 1, wherein: the headrest fixing plate is horizontally provided with a second scissors mechanism between the headrest fixing plate and the seat backrest, the front end of the second scissors mechanism is hinged to the middle portions of the upper end and the lower end of the rear side face of the headrest fixing plate, the upper portion of the rear end of the second scissors mechanism is hinged to the seat backrest, the lower portion of the rear end of the second scissors mechanism is connected with a vertically arranged driving hydraulic cylinder, and the driving hydraulic cylinder drives the second scissors mechanism to stretch and retract along the front-back direction.
9. An automobile headrest with adjustable pitch angle according to claim 2, wherein: the front end of the adjusting connecting rod is provided with a sliding groove extending along the length direction of the adjusting connecting rod, a sliding piece is connected in the sliding groove in a sliding mode, and the sliding piece is hinged to the front end of the scissors fork unit.
10. A working method of an automobile headrest with an adjustable pitching angle is characterized in that: the automobile headrest with the adjustable pitching angle, which is disclosed by any one of claims 1-8, is adopted, and when in use:
(1) headrest front and back adjustment: the telescopic rod of the driving hydraulic cylinder extends upwards, the driving hydraulic cylinder drives the second scissor mechanism to extend forwards, and the second scissor mechanism drives the headrest body to move forwards through the headrest fixing plate; when the telescopic rod of the driving hydraulic cylinder is contracted downwards, the driving hydraulic cylinder drives the second scissor mechanism to contract backwards, and the second scissor mechanism drives the headrest body to move backwards through the headrest fixing plate;
(2) forward inclination of the headrest: the first hydraulic cylinder and the second hydraulic cylinder which are positioned below the headrest fixing plate move, a telescopic rod of the first hydraulic cylinder extends, a telescopic rod of the second hydraulic cylinder contracts, the T-shaped connecting rod drives the sliding block to move upwards, the sliding block drives the scissor unit to contract backwards when moving upwards, and the adjusting connecting rod positioned below swings upwards at the moment, so that the lower end of the headrest body swings backwards, and forward tilting adjustment is realized; after the adjustment is finished, the guide rail clamp device fixes the sliding block;
(3) the headrest is tilted backwards: the first hydraulic cylinder and the second hydraulic cylinder which are positioned above the headrest fixing plate move, the telescopic rod of the first hydraulic cylinder extends, the telescopic rod of the second hydraulic cylinder contracts, the slide block is driven to move downwards through the T-shaped connecting rod, the scissor fork unit is driven to contract backwards when the slide block moves downwards, and the adjusting connecting rod positioned above the slide block swings downwards at the moment, so that the upper end of the headrest body swings backwards, and the backward-facing adjustment is realized; after the adjustment is finished, the guide rail clamp device fixes the sliding block.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111387364.6A CN113911001A (en) | 2021-11-22 | 2021-11-22 | Automobile headrest with adjustable pitching angle and working method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111387364.6A CN113911001A (en) | 2021-11-22 | 2021-11-22 | Automobile headrest with adjustable pitching angle and working method thereof |
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| CN113911001A true CN113911001A (en) | 2022-01-11 |
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| CN202111387364.6A Pending CN113911001A (en) | 2021-11-22 | 2021-11-22 | Automobile headrest with adjustable pitching angle and working method thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115126797A (en) * | 2022-06-22 | 2022-09-30 | 丽水市杰祥科技有限公司 | Position-adjustable linear guide rail clamp and using method thereof |
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| DE19941712C1 (en) * | 1999-09-02 | 2000-10-26 | Daimler Chrysler Ag | Vehicle seat headrest has a leading section which is moved forwards and backwards by a scissors mechanism operated by a push member from a unit within the backrest |
| JP2007153066A (en) * | 2005-12-02 | 2007-06-21 | Toyota Boshoku Corp | Method and device for controlling movement of vehicular seat headrest |
| KR101584904B1 (en) * | 2014-07-25 | 2016-01-14 | 현대다이모스(주) | Apparatus for adjusting headrest position |
| CN205468665U (en) * | 2016-01-04 | 2016-08-17 | 上海延锋江森座椅有限公司 | Car seat is six to headrest |
| US20190047455A1 (en) * | 2016-02-29 | 2019-02-14 | Jifeng Automotive Interior Gmbh | Headrest with an improved adjustment device |
| KR101784154B1 (en) * | 2016-10-18 | 2017-10-11 | 현대다이모스(주) | Headrest apparatus |
| CN210191262U (en) * | 2019-04-16 | 2020-03-27 | 浙江宏立至信汽车部件制造有限公司 | Headrest adjusting structure of automobile electric seat |
| WO2021180344A1 (en) * | 2020-03-11 | 2021-09-16 | Brose Fahrzeugteile SE & Co. Kommanditgesellschaft, Coburg | Headrest with an adjustment device |
| CN212604714U (en) * | 2020-06-17 | 2021-02-26 | 太仓市凯格汽车零部件有限公司 | Headrest framework with adjustable inclination |
| CN113401025A (en) * | 2021-07-20 | 2021-09-17 | 福州大学 | Three-degree-of-freedom automobile headrest and working method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115126797A (en) * | 2022-06-22 | 2022-09-30 | 丽水市杰祥科技有限公司 | Position-adjustable linear guide rail clamp and using method thereof |
| CN115126797B (en) * | 2022-06-22 | 2023-09-26 | 丽水市杰祥科技有限公司 | Position-adjustable clamp for linear guide rail and use method thereof |
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Application publication date: 20220111 |
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