CN210027152U - Multi-gear adjusting headrest - Google Patents
Multi-gear adjusting headrest Download PDFInfo
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- CN210027152U CN210027152U CN201920740819.XU CN201920740819U CN210027152U CN 210027152 U CN210027152 U CN 210027152U CN 201920740819 U CN201920740819 U CN 201920740819U CN 210027152 U CN210027152 U CN 210027152U
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- headrest
- fulcrum
- movable
- fixed
- overturning
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Abstract
The utility model discloses a many gears adjust headrest, lid and headrest branch behind headrest protecgulum, headrest, its characterized in that still including being located between the lid behind headrest protecgulum and the headrest: a fixed tooth part which is fixedly arranged on the cross bar and is provided with a pawl; one end of the torsion spring acts on the fixed tooth part, and the other end of the torsion spring acts on the headrest front cover; a movable gear part which is axially arranged on the headrest front cover and is provided with a ratchet surface; different ratchets on the ratchet surface of the movable tooth component are meshed with the pawls of the fixed tooth component, so that the adjustment of different gears of the headrest can be realized; one end of the return spring acts on the movable tooth part, and the other end of the return spring acts on the headrest front cover. Compared with the prior art, the utility model, the structure is simpler, and the cost is lower.
Description
Technical Field
The utility model relates to a seat headrest technical field, in particular to many gears adjust headrest.
Background
The common headrest of the passenger car generally has the effects that the common headrest provides support for the heads of drivers and passengers, the common headrest is not provided with an upper and lower front and back direction adjusting device, the suitable upper, lower and front and back positions are selected to provide support and protection for the heads of the drivers and passengers according to the riding habits of the drivers and passengers and different heights of the drivers and passengers, and the comfort and the practicability of the headrest are reduced. In addition, most of similar products in the market have the characteristics of complex structure, difficult adjustment and the like, so that the cost is increased, and the novel automobile seat cushion cannot be widely applied to various passenger vehicles. In order to improve the comfort of the headrest and increase its protection for the human body, it is necessary to provide a new mechanism.
The inner structures of some headrests released in the market are very complex, so that the manufacturing cost of the headrests is increased, the headrests are not suitable for being used on common passenger vehicles, and meanwhile, when the rotary headrests on the market are adjusted, the headrest cannot be unlocked and reset without buttons, or the structure is not simple, and the function of rotating the headrests can be realized.
Chinese utility model patent No. CN205381170U discloses a but height-adjusting and angular rotation headrest plastic skeleton for this reason, the upper end mid-mounting of headrest branch is in skeleton protecgulum lower part intermediate position department, install the ratchet that the flank of tooth was arranged to the upper end on the upper end mid-mounting of headrest branch, the ratchet top is installed the upper end and is rotated with the skeleton protecgulum and be connected, lower extreme and ratchet flank of tooth meshed pawl, install the skeleton back lid that covers ratchet and pawl on one side of skeleton protecgulum lower part installation headrest branch, one row of altitude mixture control hole has been arranged on the medial surface among two inserted bars of headrest branch, headrest branch upper end is close to ratchet department and installs the reduction torsion spring, the one end of reduction torsion spring links to each other with the ratchet lower part, the other end is fixed on the skeleton protec. Although the novel headrest has the characteristics of simple structure, convenience in operation, 7 adjustable positions in total, capability of controlling the headrest to rotate between 0-30 degrees, improvement on the comfort of a driver, reduction of the fatigue of the driver and the like. But the core mechanism is assembled by 12 parts, the cost is high,
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the present invention is to provide a multi-gear adjusting headrest with less number of parts, more optimized structure and lower cost for the current chinese utility model patent (No. CN205381170U) or the problem of higher cost.
The utility model discloses the technical problem that will solve can realize through following technical scheme:
a multi-gear adjusting headrest comprises a headrest front cover, a headrest rear cover and a headrest strut, wherein the headrest strut is provided with a cross rod and two headrest inserted rods connected with two ends of the cross rod, and the headrest front cover and the headrest rear cover are connected together through a fastener; characterized in that, still including being located between lid behind headrest protecgulum and the headrest:
a fixed tooth part which is fixedly arranged on the cross rod and is provided with a pawl;
the torsion spring is twisted on the cross rod, one end of the torsion spring acts on the fixed tooth part, and the other end of the torsion spring acts on the headrest front cover;
a movable gear part which is axially arranged on the headrest front cover and is provided with a ratchet surface; different ratchets on the ratchet surface of the movable tooth component are meshed with the pawls of the fixed tooth component, so that different gears of the headrest can be adjusted;
and one end of the return spring acts on the movable tooth part, and the other end of the return spring acts on the headrest front cover.
In a preferred embodiment of the present invention, a turning movable fulcrum is disposed at one end of the movable tooth component at the same side as the ratchet surface, and a first turning fixed fulcrum and a second turning fixed fulcrum are disposed at intervals at the same side of the fixed tooth component at which the pawl is disposed;
after the headrest is located at the automatic unlocking position, the overturning movable fulcrum is in contact with the second overturning fixed fulcrum, and the headrest overturns to a flat state around the contact point of the overturning movable fulcrum and the second overturning fixed fulcrum; when the headrest is reset to a reset position of an initial state from a flat state, the overturning movable fulcrum moves between the second overturning fixed fulcrum and the first overturning fixed fulcrum; when the headrest is at a reset position, the turnover movable supporting point is contacted with the first turnover fixed supporting point, and the headrest is turned to an initial state around a contact point of the turnover movable supporting point and the first turnover fixed supporting point; after the headrest enters an initial state, the overturning movable fulcrum is separated from the contact with the first overturning fixed fulcrum
In a preferred embodiment of the present invention, the lower portion of the fixed tooth part is fixed on the cross bar, and the pawl and the turning fulcrum are disposed at the lower portion of the fixed tooth part; the upper part of the movable tooth component is axially arranged on the headrest front cover, and the pawl surface, the first overturning fixed fulcrum and the second overturning fixed fulcrum are arranged on the lower part of the movable tooth component.
Owing to adopted above technical scheme, the utility model discloses compare with prior art, the structure is simpler, and core mechanism comprises 8 parts, and the cost is lower. The headrest is more stable when being placed flat and entering the initial position by arranging the overturning movable fulcrum on the movable tooth component and arranging the first and second overturning fixed fulcrums on the fixed tooth component.
Drawings
Fig. 1 is an exploded view of the multi-position adjusting headrest of the present invention as viewed from one direction.
Fig. 2 is an exploded view of the multi-position adjustment headrest of the present invention viewed from another direction.
Fig. 3 is a schematic view showing the engagement state between the movable gear member and the movable gear member in the multi-gear adjustment headrest according to the present invention.
Fig. 4 is a schematic view of the engagement state between the movable gear part and the movable gear part when the multi-gear adjusting headrest of the present invention is at the initial design position.
Fig. 5 is a schematic view of the engagement state between the moving gear part and the moving gear part when the multi-gear adjusting headrest of the present invention is in the final gear position.
Fig. 6 is a schematic view of the engagement state between the movable gear part and the movable gear part when the multi-gear adjusting headrest of the present invention is in the automatic unlocking position.
Fig. 7 is a schematic view of the engagement state between the movable gear part and the movable gear part when the multi-gear adjusting headrest of the present invention is in the reset position.
Fig. 8 is a schematic view of the engagement state between the movable gear member and the movable gear member when the multi-gear adjusting headrest of the present invention is in the initial design position.
Fig. 9 is a schematic view of the multi-position adjusting headrest of the present invention in the initial design position.
Fig. 10 is a schematic view of the multi-position adjusting headrest of the present invention in the final position.
Fig. 11 is a schematic view of the multi-position adjusting headrest of the present invention in an automatically unlocked position.
Fig. 12 is a schematic view of the multi-position adjusting headrest of the present invention in the reset position.
Fig. 13 is a schematic view of the multi-position adjusting headrest according to the present invention in a state of being restored to the original design position.
Fig. 14 is a schematic view of the movable gear part of the multi-gear adjusting headrest according to the present invention mounted on the shaft.
Fig. 15 is a schematic view of the movable gear member of the multi-position adjustment headrest of the present invention mounted to the front cover of the headrest.
Fig. 16 is a schematic view of the tooth fixing member of the multi-position adjustment headrest of the present invention being mounted to the cross bar of the headrest stay.
Fig. 17 is a schematic view of the multi-position adjusting headrest of the present invention in which the fixed teeth part and the torsion spring are mounted to the cross bar of the headrest stay.
Fig. 18 is a schematic structural view of the multi-position adjusting headrest of the present invention, as viewed from one direction, after the headrest rear cover is removed.
Fig. 19 is a schematic structural view of the multi-position adjusting headrest of the present invention, as viewed from another direction after the headrest rear cover is removed.
Fig. 20 is a schematic view of the internal structure of the multi-position adjustable headrest of the present invention when the rotation point of the headrest is located below the headrest and the headrest is at the initial design position.
Fig. 21 is a schematic view of the internal structure of the multi-gear adjustable headrest of the present invention when the rotation point of the headrest is located below the headrest and the headrest is in the final gear position.
Fig. 22 is a schematic view of the internal structure of the multi-position adjustable headrest of the present invention, wherein the rotation point of the headrest is located above the headrest and the headrest is at the initial design position.
Fig. 23 is a schematic view of the internal structure of the multi-gear adjustable headrest of the present invention when the rotation point of the headrest is located above the headrest and the headrest is in the final gear position.
Fig. 24 is a schematic view of the head support for the driver and the passenger when the rotation point of the headrest in the multi-gear adjusting headrest of the present invention is located below the headrest.
Fig. 25 is a schematic view of the head support for the driver and the passenger when the rotation point of the headrest in the multi-gear adjusting headrest of the present invention is located above the headrest.
Detailed Description
The invention is further described below with reference to the accompanying drawings and the detailed description.
Referring to fig. 1 to 21, there is shown a multi-position adjustment headrest including a front headrest cover 110, a rear headrest cover 120, and a headrest strut 200, wherein the headrest strut 200 has a cross bar 210 and two headrest rods 220 and 230 connected to both ends of the cross bar 210, and the front headrest cover 110 and the rear headrest cover 120 are connected together by fasteners to form the headrest 100. In addition, a row of height adjustment grooves 221 are formed in one of the headrest insertion rods 220 so that the headrest 100 can be adjusted up and down.
The crossbar 210 in the headrest strut 200 is located below the interior of the headrest 100, forming a point of rotation for the headrest 100.
The utility model is characterized in that: further comprises a fixed tooth part 300, a torsion spring 400, a movable tooth part 500 and a return spring 600 which are positioned between the headrest front cover 110 and the headrest rear cover 120.
Referring particularly to fig. 16 and 17, the lower portion 310 of the tooth fixing member 300 is fixed to the cross bar 210 at a substantially middle position by welding, and the torsion spring 400 is twisted on the cross bar 210, and one end of the torsion spring 400 acts on the tooth fixing member 300 at a proper position and the other end acts on the headrest front cover 110 (see fig. 18 in combination).
The upper part 320 of the fixed tooth component 300 is provided with a pawl 330, a first overturning fixed fulcrum 340 and a second overturning fixed fulcrum 350, wherein the pawl 330 and the second overturning fixed fulcrum 350 are respectively positioned at two ends of the upper part 320 of the fixed tooth component 300, and the first overturning fixed fulcrum 340 is positioned between the pawl 330 and the second overturning fixed fulcrum 350.
Referring particularly to fig. 14 and 15, the upper portion 510 of the moving tooth member 500 is secured to a rotating shaft 520. Both ends of the rotation shaft 520 are axially provided on the headrest front cover 110, so that the movable gear member 500 is axially provided on the headrest front cover 110, and thus the movable gear member 500 can revolve along with the headrest 100 and can rotate with respect to the headrest front cover 110.
A ratchet surface 540 and a turning fulcrum 550 are provided on a lower portion 530 of the movable gear part 500, and the ratchet surface 540 has a certain length, so that it is possible to ensure that the headrest 100 performs multi-step adjustment within a certain angular range. The upset is moved fulcrum 550 and is set up the one end that is closer to pivot 520 in the lower part 530 that moves tooth part 500, and the structure that moves tooth part 500 has compatible assembly mechanism locking function, assembly mechanism gear regulatory function, self reset function, assembly mechanism reset function, is the utility model discloses a technical bright point.
One end of the return spring 600 acts on one side of the movable tooth component 500 closer to the rotating shaft 520, so that the return spring 600 is simple in structure and light in weight, the return function of the movable tooth component 500 can be realized through a small size, the tolerance of matched parts can be absorbed, and the production cost is low.
Referring particularly to fig. 3, different ratchets on the ratchet surface 540 of the moving-tooth component 500 are engaged with the pawls 330 of the fixed-tooth component 300, so that the adjustment of different gears of the headrest 100 can be realized as follows:
referring particularly to fig. 4, 8, 9, 13 and 20, when the headrest 100 is in the initial design position, the ratchet teeth of the end of the ratchet surface 540 of the movable tooth member 500 near the flip fulcrum 550 are engaged with the pawls 330 of the fixed tooth member 300, so that the headrest 100 is in the stable initial design position and is not flipped backward any more.
Referring particularly to fig. 5, 10 and 21, when the headrest 100 is in the final shift position, the ratchet surface 540 of the movable tooth member 500 at the end away from the reverse movable fulcrum 550 engages with the ratchet 330 of the fixed tooth member 300, so that the headrest 100 is in the stable final shift position and cannot be reversed backward.
Referring to fig. 6 and 11 in particular, when the headrest 100 is in the final shift position, the ratchet on the ratchet surface 540 of the movable gear component 500 is disengaged from the pawl 330 of the fixed gear component 300, the tumble fulcrum 550 is in contact with the second tumble fixed fulcrum 350, the headrest 100 is tumbled to the flat state around the contact point a between the tumble movable fulcrum 550 and the second tumble fixed fulcrum 350, and since the tumble movable fulcrum 550 is in contact with the second tumble fixed fulcrum 350, the contact point a forms the fulcrum for the tumble of the movable gear component 500, so that the headrest 100 is stable during the flat state.
Referring to fig. 7 and 12 in particular, when the headrest 100 is in the reset position, the flip-flop movable fulcrum 550 is in contact with the first flip-flop fixed fulcrum 340, and the headrest 100 is flipped to the original design state around the contact point B between the flip-flop movable fulcrum 550 and the first flip-flop fixed fulcrum 340, and since the flip-flop movable fulcrum 550 is in contact with the first flip-flop fixed fulcrum 340, the contact point B forms a fulcrum at which the movable tooth member 500 is flipped, so that the headrest 100 is stable in the process of being flipped to the original design state, and does not impact the pawl 330.
During the turning of the headrest 100 from the automatic unlocking position to the reset position, the turning movable fulcrum 550 moves between the second turning fixed fulcrum 350 and the first turning fixed fulcrum 340.
Referring to fig. 8 and 13 in particular, when the headrest 100 is restored to the original design position, the ratchet surface 540 of the movable tooth member 500 at the end close to the flip movable fulcrum 550 is engaged with the pawl 330 of the fixed tooth member 300, and the flip movable fulcrum 550 is disengaged from the first flip fixed fulcrum 340.
Referring to fig. 22 and 23, a multi-position adjustment headrest is shown with the cross bar 210 of the headrest strut 200 positioned above the interior of the headrest 100, forming a point of rotation for the headrest 100. The lower portion 530 of the moving tooth member 500 is fixed to a rotating shaft 520. A ratchet surface 540 and a reverse movable fulcrum 550 are provided on an upper portion 510 of the movable gear part 500.
The upper portion 320 of the fixed tooth member 300 is fixed to a substantially middle position of the cross bar 210 by welding, and the lower portion 310 of the fixed tooth member 300 is provided with a pawl 330, a first inversion fixing fulcrum 340, and a second inversion fixing fulcrum 350.
The operation of the multi-position adjustment headrest shown in fig. 22 and 23 is substantially the same as the multi-position adjustment headrest shown in fig. 1-21 and will not be described again.
Referring to fig. 24, when the cross bar 210 of the headrest stay 200 is positioned at a lower portion inside the headrest 100, that is, a rotation point of the headrest 100 is positioned at an upper portion inside the headrest 100, the headrest 100 can be set to have a large rotation angle, the headrest 100 can be widely varied, and passengers of different heights can find comfortable positions, and the safety of the passengers can be improved.
Referring to fig. 25, when the cross bar 210 of the headrest strut 200 is located above the inside of the headrest 100, that is, the rotation point of the headrest 100 is located below the inside of the headrest 100, the rotation adjustment range of the headrest 100 is small, and after the rotation adjustment of the headrest 100, there is an upward supporting force on the head of a driver or a passenger, so that the pressure of the head on the neck is reduced, and the riding comfort is improved.
Claims (3)
1. A multi-gear adjusting headrest comprises a headrest front cover, a headrest rear cover and a headrest strut, wherein the headrest strut is provided with a cross rod and two headrest inserted rods connected with two ends of the cross rod, and the headrest front cover and the headrest rear cover are connected together through a fastener; characterized in that, still including being located between lid behind headrest protecgulum and the headrest:
a fixed tooth part which is fixedly arranged on the cross rod and is provided with a pawl;
the torsion spring is twisted on the cross rod, one end of the torsion spring acts on the fixed tooth part, and the other end of the torsion spring acts on the headrest front cover;
a movable gear part which is axially arranged on the headrest front cover and is provided with a ratchet surface; different ratchets on the ratchet surface of the movable tooth component are meshed with the pawls of the fixed tooth component, so that different gears of the headrest can be adjusted;
and one end of the return spring acts on the movable tooth part, and the other end of the return spring acts on the headrest front cover.
2. The headrest for adjusting multiple gears according to claim 1, wherein a rotating fulcrum is disposed at one end of said movable gear member on the same side as the ratchet surface, and a first rotating fulcrum and a second rotating fulcrum are disposed at an interval on the same side of said fixed gear member on which the pawl is disposed;
after the headrest is located at the automatic unlocking position, the overturning movable fulcrum is in contact with the second overturning fixed fulcrum, and the headrest overturns to a flat state around the contact point of the overturning movable fulcrum and the second overturning fixed fulcrum; when the headrest is reset to a reset position of an initial state from a flat state, the overturning movable fulcrum moves between the second overturning fixed fulcrum and the first overturning fixed fulcrum; when the headrest is at a reset position, the turnover movable supporting point is contacted with the first turnover fixed supporting point, and the headrest is turned to an initial state around a contact point of the turnover movable supporting point and the first turnover fixed supporting point; after the headrest enters the initial state, the overturning movable fulcrum is separated from the first overturning fixed fulcrum.
3. A multi-position adjusting headrest according to claim 2 wherein a lower portion of said fixed tooth member is fixed to said cross-bar, said pawl and said flip fulcrum being disposed on a lower portion of said fixed tooth member; the upper part of the movable tooth component is axially arranged on the headrest front cover, and the pawl surface, the first overturning fixed fulcrum and the second overturning fixed fulcrum are arranged on the lower part of the movable tooth component.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920740819.XU CN210027152U (en) | 2019-05-22 | 2019-05-22 | Multi-gear adjusting headrest |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920740819.XU CN210027152U (en) | 2019-05-22 | 2019-05-22 | Multi-gear adjusting headrest |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210027152U true CN210027152U (en) | 2020-02-07 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920740819.XU Active CN210027152U (en) | 2019-05-22 | 2019-05-22 | Multi-gear adjusting headrest |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210027152U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112009337A (en) * | 2020-08-13 | 2020-12-01 | 重庆宏立至信贝艾思汽车用品有限公司 | Headrest framework assembly with adjustable front and rear angles |
-
2019
- 2019-05-22 CN CN201920740819.XU patent/CN210027152U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112009337A (en) * | 2020-08-13 | 2020-12-01 | 重庆宏立至信贝艾思汽车用品有限公司 | Headrest framework assembly with adjustable front and rear angles |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 201315 No. 669 Kang'an Road, Kangqiao Industrial Zone, Pudong New District, Shanghai Patentee after: Yanfeng international Seat System Co.,Ltd. Address before: 201315 No. 669 Kang'an Road, Kangqiao Industrial Zone, Pudong New District, Shanghai Patentee before: YANFENG ADIENT SEATING Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder |