CN218021298U - Backrest assembly, seat and vehicle - Google Patents
Backrest assembly, seat and vehicle Download PDFInfo
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- CN218021298U CN218021298U CN202221919381.XU CN202221919381U CN218021298U CN 218021298 U CN218021298 U CN 218021298U CN 202221919381 U CN202221919381 U CN 202221919381U CN 218021298 U CN218021298 U CN 218021298U
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- 230000007246 mechanism Effects 0.000 claims abstract description 58
- 230000005540 biological transmission Effects 0.000 claims description 102
- 238000009434 installation Methods 0.000 description 18
- 230000033001 locomotion Effects 0.000 description 10
- 230000009471 action Effects 0.000 description 4
- 239000006260 foam Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000003780 insertion Methods 0.000 description 3
- 230000037431 insertion Effects 0.000 description 3
- 230000000149 penetrating effect Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 206010063385 Intellectualisation Diseases 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000003796 beauty Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005187 foaming Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000008569 process Effects 0.000 description 1
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- 238000007493 shaping process Methods 0.000 description 1
- 230000001960 triggered effect 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
- B60N2/64—Back-rests or cushions
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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
- B60N2/809—Head-rests movable or adjustable vertically slidable
- B60N2/812—Head-rests movable or adjustable vertically slidable characterised by their locking devices
- B60N2/815—Release mechanisms, e.g. buttons
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chair Legs, Seat Parts, And Backrests (AREA)
- Seats For Vehicles (AREA)
Abstract
The application relates to the technical field of automotive interior accessories and discloses a backrest assembly, a seat and a vehicle, wherein the backrest assembly comprises a backrest main body and a locking and unlocking mechanism, and the backrest main body is movably connected with a headrest main body along the vertical direction of the backrest main body; the locking and unlocking mechanism comprises: the headrest main body is fixed relative to the backrest main body at the locking position; in the unlocked position, the headrest body is movable up and down relative to the backrest body.
Description
Cross Reference to Related Applications
This application claims priority to domestic patent applications with application numbers 2022202581517 and 2022101189725, filed on day 08, 2022, which are incorporated herein by reference in their entirety.
Technical Field
The application relates to the technical field of automotive interior fittings, in particular to a backrest assembly, a seat and a vehicle.
Background
With the continuous development of automobile electromotion and intellectualization, the design of the automobile interior structure is more and more novel. Conventional seat back adjustment designs are primarily concerned with adjusting the fore-aft angle at which the occupant sits on the seat, i.e., adjusting the angle of inclination of the seat back as a whole relative to the vertical. However, this adjustment method cannot meet the requirements of different users well.
SUMMERY OF THE UTILITY MODEL
In view of the above problems, embodiments of the present application are proposed in order to provide a backrest assembly, a seat and a vehicle that solve the above problems, or at least partially solve the above problems.
According to a first aspect of the application, a backrest assembly is provided, which is applied to a vehicle and comprises a backrest main body and a locking and unlocking mechanism, wherein the backrest main body and a headrest main body are movably connected along the up-down direction of the backrest main body; the locking and unlocking mechanism comprises:
the headrest main body is fixed relative to the backrest main body at the locking position; in the unlocked position, the headrest body is movable up and down relative to the backrest body. Optionally, the transmission member is provided with a rotation connecting portion, and the rotation connecting portion is used for being rotatably connected with the backrest main body.
Optionally, the rotation axis of the rotation connecting portion is along the up-down direction.
Optionally, the trigger and the locking body are respectively arranged on two opposite sides of the transmission member;
when the trigger piece receives an external force along the first direction, the transmission piece drives the locking main body to move along the first direction.
Optionally, the rotation axis of the rotation connection portion intersects with the up-down direction and the first direction, respectively.
Optionally, the transmission member has a first end and a second end opposite to each other, the first end corresponds to the locking body, and the second end corresponds to the trigger member; the rotational connection is located between the first end and the second end;
when the second end is subjected to the acting force applied by the trigger piece along the first direction, the first end drives the locking main body to move along the reverse direction of the first direction so as to be located at the unlocking position.
Optionally, the transmission member is an elongated member extending in the up-down direction.
Optionally, the backrest further comprises a first elastic resetting piece, and the first elastic resetting piece is respectively connected with the transmission piece and the backrest main body;
in the locking position, the first elastic resetting piece has a tendency of pushing against the transmission piece to lock the locking main body and the headrest main body or the backrest main body.
Optionally, the backrest seat further comprises a second elastic resetting piece, wherein the second elastic resetting piece is respectively connected with the locking main body and the backrest main body or the headrest main body;
in the locking position, the second elastic resetting piece has a tendency of pushing against the locking main body and the headrest main body or locking with the backrest main body.
Optionally, the locking body is provided with a first through hole penetrating along the up-down direction, and the first through hole is used for the headrest body or the backrest body to movably penetrate through.
Optionally, the locking main body is provided with a locking portion, the locking portion is detachably connected with the locking main body, and at least part of the locking portion is located in the first through hole and used for locking the headrest main body or the backrest main body.
Optionally, the locking body is provided with a second through hole, the second through hole penetrates through a hole wall of the first through hole, and the locking part is inserted into the second through hole.
Optionally, the trigger includes an unlocking shell and a pressing portion, the pressing portion is movably connected to the unlocking shell, and the unlocking shell is provided with a through hole;
the pressing part can penetrate through the through hole to push the transmission part to move when being acted by external force, so that the locking main body is located at the unlocking position.
Optionally, the backrest body is provided with a mounting hole; the headrest main body is movably inserted into the mounting hole along the vertical direction, the locking main body is connected with the backrest main body, and the locking main body can be locked with or separated from the headrest main body; or,
the headrest main body is movably sleeved on the backrest main body in the up-down direction, the locking main body is connected with the headrest main body, and the locking main body can be locked with or separated from the backrest main body.
Optionally, the backrest body is provided with a yielding hole, and the yielding hole penetrates through the hole wall of the mounting hole along a first direction; the locking main body extends into the mounting hole from the abdicating hole, and the locking main body can reciprocate along the first direction so as to be located at the locking position or the unlocking position.
Optionally, the backrest body or the headrest body is provided with a clamping structure, and the locking body is clamped with the clamping structure at the locking position.
The embodiment of the application also provides a seat, which comprises a backrest assembly and a headrest main body.
The embodiment of the application further provides a vehicle, which comprises a vehicle body and a seat arranged in the vehicle body.
In this application, trigger the piece and do all can not receive the influence of locking main part with effort in the driving medium, through the motion of driving medium drive locking main part along the first direction, trigger the piece not direct action locking main part, consequently no matter the locking main part sets up at back main part or headrest main part, trigger the position of piece and arrange the influence that can not receive locking main part, can arrange in a flexible way and trigger the piece. Simultaneously, the trigger piece passes through the driving medium and directly transmits power for the locking main part, and the locking main part motion can directly be triggered in other words to the trigger piece, has guaranteed the locking or the unblock of locking main part to back main part and headrest main part.
Drawings
FIG. 1 is a schematic view of a seat of an embodiment of the present application with the headrest body in a lowermost position;
FIG. 2 is another schematic structural view of the seat of FIG. 1, with the headrest body in an uppermost position;
FIG. 3 is a partial schematic view of the seat of FIG. 1 at the lock release mechanism;
FIG. 4 is a schematic view of the seat of FIG. 1 in partial cutaway;
FIG. 5 is an exploded view of a portion of the seat of FIG. 1;
FIG. 6 is an exploded schematic view of a seat according to another embodiment of the present application;
FIG. 7 is a schematic view of the overall structure of the seat of FIG. 6;
fig. 8 is a schematic structural view of a headrest body and a backrest body in a seat according to an embodiment of the present application before being connected;
fig. 9 is a structural schematic view of the backrest main body and the locking and unlocking mechanism in fig. 6 after being assembled;
FIG. 10 is an enlarged view at B of FIG. 9;
FIG. 11 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 7;
FIG. 12 is a schematic structural view of the locking body of FIG. 6;
fig. 13 is a schematic structural view of the second body in fig. 6.
Description of reference numerals:
100: a backrest body; 200: a headrest body; 10: a first body; 10a: mounting holes; 10b: a clamping structure; 20: a second body; 20a: a clamping structure; 30: a first elastic reset member; 40: a second elastic reset piece; 50: a third elastic reset member; 4001: a backrest frame; 2100. a headrest cover; 2002: a headrest front cover; 2004: a headrest rear cover; 2005: a pressing part; 2007: unlocking the housing; 2007a: a cavity; 2009: a locking portion; 2010: a locking body; 2010a: a first through hole; 2010b: a second through hole; 2010c, unlocking the through hole; 41: foaming the headrest; 42: a headrest framework; 7: a locking and unlocking mechanism; 8: a hole of abdication; 9: a transmission member; 91, a first end; 92: a second end; 93: the connecting part is rotated.
Detailed Description
The technical solutions of the present application will be described clearly and completely with reference to the accompanying drawings, and it should be understood that the described embodiments are only some embodiments of the present application, but not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without making any creative effort belong to the protection scope of the present application.
In the description of the present application, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
In addition, the technical features mentioned in the different embodiments of the present application described below may be combined with each other as long as they do not conflict with each other.
For the seat, be equipped with the headrest on its back for support user's neck, and because there is the difference in different users ' height, consequently for the user of adaptation different heights, need set up the headrest as can reciprocate for the back relatively, adjust the headrest to suitable high back simultaneously, need fix the headrest again, prevent that the headrest from removing in the use and leading to unable stable support user's neck. In this regard, a mechanism that can unlock and lock the headrest, i.e., a lock-unlock mechanism, needs to be provided between the backrest and the headrest. However, due to the limitation of the vehicle type, the space inside some vehicles is compact, and the installation space beside the backrest seat is often small, so that the installation direction of the unlocking button of the seat headrest is limited or the unlocking button cannot be installed smoothly.
With reference to fig. 1 to 5, in order to solve the above problem, an embodiment of the present invention provides a backrest assembly, which includes a backrest main body 100 and a lock-unlock mechanism, wherein a headrest main body 200 of a seat is movably connected to the backrest main body 100 in an up-down direction; the locking and unlocking mechanism comprises: the headrest comprises a trigger piece, a transmission piece 9 and a locking main body 2010, wherein the transmission piece 9 is movably connected with the backrest main body 100 and can move towards a direction close to or far away from the locking main body 2010 so as to push the locking main body 2010 to be in a locking position or an unlocking position, and in the locking position, the headrest main body 200 is fixed relative to the backrest main body 100; in the unlocked position, the headrest body 200 can move up and down relative to the backrest body 100.
Specifically, the trigger is movably connected to the backrest module 100 along a first direction, and the first direction intersects with the up-down direction; the lock body 2010 is capable of reciprocating in a first direction with respect to the headrest body 200; the locking body 2010 has a locked position in which the locking body 2010 locks the back assembly 100 and the headrest body 200 to restrict movement of the headrest body 200 relative to the back assembly 100 and an unlocked position. When the trigger receives an external force along the first direction or the direction opposite to the first direction, the transmission member 9 can be pushed to move, so as to drive the locking body 2010 to move to be in the unlocking position, so that the headrest body 200 can move relative to the backrest assembly 100.
In the embodiment of the present application, the trigger acts on the transmission member 9 with a force, the locking main body 2010 is driven to move along the first direction by the transmission member 9, the trigger does not act on the locking main body 2010 directly, and therefore, no matter whether the locking main body 2010 is arranged on the backrest assembly 100 or the headrest main body 200, the position arrangement of the trigger is not affected by the locking main body 2010, and the trigger can be flexibly arranged. Meanwhile, the trigger directly transmits force to the locking body 2010 through the transmission part 9, which is equivalent to the trigger capable of directly triggering the locking body 2010 to move along the first direction, so that locking or unlocking of the backrest assembly 100 and the headrest body 200 by the locking body 2010 is ensured.
Because the heights of the passengers are different, in order to improve the comfort of the passengers when riding, the headrest main body 200 and the backrest main body 100 can be set to move up and down relatively, and the passengers can find a comfortable riding position by adjusting the up-down height of the headrest main body 200 relative to the backrest main body 100, so that the comfort of the passengers is greatly improved. Meanwhile, the installation of the locking and unlocking mechanism 7 is not limited by the installation direction any more by the transmission member 9, and the locking and unlocking mechanism 7 can be arranged on any side of the backrest main body 100, so that the adjustment of the headrest main body 200 is more convenient.
The transmission member 9 may be rotatably or slidably connected to the backrest module 100, and in some embodiments, the transmission member 9 is provided with a rotation connecting portion 93, and the rotation connecting portion 93 is used for rotatably connecting to the backrest module 100. The rotation connecting portion 93 may be a rotation hole, and the backrest module 100 is correspondingly provided with a rotation shaft to be rotatably matched with the rotation hole; alternatively, the rotation connecting portion 93 is a rotation shaft, and the backrest module 100 is provided with a rotation hole corresponding to the rotation shaft for rotatably engaging with the rotation shaft.
The rotation axis of the rotation connecting portion 93 may be parallel to or intersecting with the up-down direction as long as it is satisfied that the acting force of the trigger is converted into the driving force that drives the locking body 2010 to move in the first direction.
For example, referring to fig. 1 to 5 in combination, in the first embodiment of the present application, the rotation axis of the rotation connecting portion 93 is along the vertical direction. The transmission member 9 can be turned over with a rotation axis extending up and down as a center. Optionally, the trigger and the locking body 2010 are respectively arranged on two opposite sides of the transmission member 9; when the trigger is subjected to an external force in the first direction, the transmission member 9 drives the locking body 2010 to move in the first direction. In this embodiment, the rotation connecting portion 93 may be disposed at one side of the transmission member 9, so that the transmission member 9 can be turned over with one of the side edges thereof as a center. Specifically, when the trigger receives an external force along the first direction, the pushing transmission part 9 turns over along the first direction, and the transmission part 9 contacts the locking main body 2010 and pushes the locking main body 2010 to the first direction for unlocking.
Of course, in other embodiments, the rotation connecting portion 93 may also be disposed between two opposite sides of the transmission member 9, specifically, the transmission member 9 has a first side and a second side opposite to each other, the rotation connecting portion 93 is located between the first side and the second side, and the rotation axis of the rotation connecting portion 93 is along the length direction of the first side. The trigger and the locking main body 2010 may be disposed on two opposite sides of the transmission member 9, and when the trigger receives an external force along a direction opposite to the first direction, the first side of the transmission member 9 moves along the direction opposite to the first direction, the second side of the transmission member 9 moves along the first direction, and the second side pushes the locking main body 2010 to move to the unlocking position along the first direction.
For another example, referring to fig. 6 to 13 in combination, in the second embodiment, the rotation axis of the rotation connecting portion 93 intersects with the up-down direction and the first direction, respectively. Alternatively, the rotation axis of the rotation connecting portion 93 is perpendicular to the up-down direction and the first direction, and the up-down direction and the first direction are perpendicular, respectively. In some embodiments, the transmission member 9 has opposite first and second ends 91 and 92, the first end 91 corresponding to the locking body 2010 and the second end 92 corresponding to the trigger member. The rotational connection 93 is located between the first end 91 and the second end 92. When the second end 92 is acted upon by a force in the first direction from the trigger, the first end 91 moves the locking body 2010 in the opposite direction of the first direction to the unlocked position.
Optionally, the first end 91 of the transmission member 9 is connected to the locking body 2010. In some embodiments, the locking body 2010 is further provided with an unlocking through hole 2010c, and the transmission member 9 is inserted into the unlocking through hole 2010c. In addition, the transmission member 9 may be movably inserted into the unlocking through hole 2010c, and the transmission member 9 may freely swing within the unlocking through hole 2010c under an external force. For example, in the case of the above-mentioned transmission member 9 having the first end 91 and the second end 92, the first end 91 of the transmission member 9 is inserted into the unlocking through hole 2010c of the locking body 2010, and the transmission member 9 can swing back and forth in the first direction in the unlocking through hole 2010c and abut against the hole wall of the unlocking through hole 2010c.
In other embodiments, the driving member 9 may be fixed to the locking body 2010 by screws, or may be engaged with the locking body 2010. Of course, the transmission piece 9 may also be integrally formed with the locking body 2010.
The transmission member 9 may have an elongated shape with its length direction along the up-down direction, which is the up-down direction along the backrest main body 100. For example, the locking body 2010 may be generally in the form of an elongated plate or elongated block or elongated rod, etc.
Further, the locking and unlocking mechanism 7 further includes a first elastic restoring member 30, and the first elastic restoring member 30 connects the transmission member 9 and the backrest assembly 100, respectively. In the locking position, the first elastic return element 30 has a tendency to push the transmission element 9 against the locking body 2010 to the backrest assembly 100 or the headrest body 200. That is, the second elastic reset element 40 can ensure that the transmission element 9 does not freely shake, thereby avoiding the transmission element 9 from generating noise and being unlocked by mistake.
Taking the first embodiment as an example, as shown in fig. 1 to 5, the first elastic restoring member 30 is disposed on a side of the transmission member 9 facing away from the locking body 2010, the locking body 2010 is disposed on the headrest body 200, the locking body 2010 is locked with the backrest assembly 100, and the locking body 2010 is clamped on a side of the backrest assembly 100 facing away from the transmission member 9, when the locking body 2010 is in the locking position, the first elastic restoring member 30 is in a stretching state, that is, has a tendency of pulling the transmission member 9 in a direction opposite to the first direction, so that the locking body 2010 is tightly clamped on a side of the backrest assembly 100 facing away from the transmission member 9, and the locking body 2010 has a clamping force in a direction opposite to the first direction on the backrest assembly 100.
Depending on the position in which the first elastic return element 30 is arranged, the first elastic return element 30 may also be in a compressed state in the locking position.
Further, the locking and unlocking mechanism 7 further includes a second elastic restoring member 40, and the second elastic restoring member 40 connects the locking body 2010 and the backrest module 100 or the headrest body 200, respectively. In the locking position, the second elastic restoring member 40 has a tendency to push the locking body 2010 to be locked with the headrest body 200 or with the backrest assembly 100, so that the locking body 2010 is firmly clamped with the headrest body 200 or the locking body 2010 is firmly clamped with the backrest assembly 100. In some embodiments, the latch body 2010 is provided on the headrest body 200 to be capable of reciprocating in the up-down direction with the headrest body 200, and thus the second elastic restoring member 40 connects the latch body 2010 and the headrest body 200, respectively. In other embodiments, the locking body 2010 is provided on the backrest module 100, and the locking body 2010 and the headrest body 200 are moved in the up-and-down direction. The second elastic restoring member 40 is coupled to the latching body 2010 and the backrest module 100, respectively.
Taking the first embodiment as an example, the second elastic restoring member 40 is disposed on a side of the locking main body 2010 facing away from the transmission member 9, the locking main body 2010 is clamped on a side of the backrest assembly 100 facing away from the transmission member 9, when the locking main body 2010 is in the locking position, the second elastic restoring member 40 is in a compressed state, that is, has a tendency of pushing the locking main body 2010 to a direction opposite to the first direction, so that the locking main body 2010 is tightly clamped on the side of the backrest assembly 100 facing away from the transmission member 9, and the locking main body 2010 has a clamping force to the backrest assembly 100 in the direction opposite to the first direction.
Likewise, depending on the position at which the second elastic restoring member 40 is disposed and the position at which the latching body 2010 clamps the headrest body 200, the second elastic restoring member 40 may be in a stretched state at the latching position.
Further, the locking body 2010 is provided with a first through hole 2010a penetrating in the vertical direction, the first through hole 2010a is used for the backrest module 100 or the headrest body 200 to movably penetrate through, and the first through hole 2010a has a guiding effect on the movement of the backrest module 100 or the headrest body 200 in the vertical direction.
Referring to fig. 1 to 5 again, specifically, in some embodiments, the headrest body 200 is movably sleeved on the backrest assembly 100 in the up-down direction, the locking body 2010 is connected with the headrest body 200, and the locking body 2010 can be locked with or separated from the backrest assembly 100. In this embodiment, the first through hole 2010a of the locking body 2010 is used for movably passing through the backrest module 100, the backrest module 100 may be rod-shaped, and the backrest module 100 may be provided with a locking structure 10b, and the locking structure 10b is used for being clamped by the locking portion 2009 of the locking body 2010.
Referring to fig. 6 to 13, in other embodiments, the backrest module 100 is provided with a mounting hole 10a; the headrest body 200 is movably inserted into the mounting hole 10a in the up-down direction, the locking body 2010 is coupled to the back assembly 100, and the locking body 2010 can be locked to or separated from the headrest body 200. In this embodiment, the first through hole 2010a of the locking body 2010 is used for movably passing through the headrest body 200, the headrest body 200 may be rod-shaped, and the headrest body 200 may further be provided with an engaging structure 20a, and the engaging structure 20a is used for engaging with the locking portion 2009 of the locking body 2010. Specifically, after the headrest body 200 is adjusted to a suitable position in the up-down direction, in order to fix the headrest body 200 in the up-down direction, the locking portion 2009 is inserted into the second through hole 2010b (described in the following embodiment) and passes through the engaging structure 20a of the headrest body 200, so that the headrest body 200 can be positioned so as not to move in the up-down direction.
The engaging structure 10b/20a may be a groove or a engaging protrusion, wherein the groove may be a groove formed on the headrest body 200 or the backrest body 100 by removing a surface material, or a plurality of protrusions may be provided on the headrest body 200 or the backrest body 100, and a gap between two adjacent protrusions forms the groove.
In some embodiments, the locking body 2010 is provided with a locking portion 2009, and the locking portion 2009 is located at least partially in the first through hole 2010a and is used to lock the headrest body 200. The locking portion 2009 and the locking body 2010 may be integrally formed, and of course, for convenience of processing, the locking portion 2009 and the locking body 2010 are separately provided, for example, detachably connected. Specifically, the locking body 2010 is provided with a second through hole 2010b, the second through hole 2010b penetrates through the hole wall of the first through hole 2010a, and the locking part 2009 is inserted into the second through hole 2010 b. Optionally, the second through hole 2010b is perpendicular to the first through hole 2010a, and a center line of the second through hole 2010b and a center line of the first through hole 2010a are arranged in a "cross shape". The locking portion 2009 may be in the form of a latch or insert, etc.
In the above, the locking body 2010 is moved in the first direction or in the opposite direction to the first direction to unlock, and the moving direction is also influenced by the position of the locking part 2009 on the locking body 2010. For example, in some embodiments, when the locking portion 2009 is disposed on the hole wall of the second through hole 2010b on the side away from the transmission member 9, the locking portion 2009 is locked on the side of the headrest body 200 away from the transmission member 9, so that the locking body 2010 is unlocked when moving in the first direction and the locking body 2010 is locked when moving in the opposite direction to the first direction. For another example, in some embodiments, when the locking portion 2009 is disposed on the hole wall of the second through hole 2010b on the side close to the transmission member 9, the locking portion 2009 is caught on the side of the headrest body 200 facing the transmission member 9, so that the locking body 2010 is unlocked when moving in the direction opposite to the first direction, and the locking body 2010 is locked when moving in the first direction.
Further, the trigger includes an unlocking housing 2007 and a pressing portion 2005, the pressing portion 2005 is movably connected to the unlocking housing 2007, and the unlocking housing 2007 is provided with a through hole; the pressing portion 2005 can penetrate through the through hole to push the transmission member 9 to move when being subjected to an external force, so that the locking body 2010 is located at the unlocking position.
As shown in fig. 5, taking the first embodiment as an example, one of the side surfaces of the transmission member 9 faces the through hole, and the pressing portion 2005 can penetrate through the through hole to push the side surface of the transmission member 9 when receiving an external force, so that the transmission member 9 moves in the first direction to unlock the lock.
As shown in fig. 10, taking the second embodiment as an example, the second end 92 of the transmission member 9 corresponds to the through hole, and the pressing portion 2005 can pass through the through hole when receiving an external force to push the second end 92 to move along the first direction, and simultaneously the first end 91 of the transmission member 9 moves in a direction opposite to the first direction to unlock.
The pressing portion 2005 is pressed down, the pressing portion 2005 penetrates through the through hole to push the upper end of the transmission member 9 to move in a direction (a first direction) close to the headrest body 200, meanwhile, the lower end of the transmission member 9 moves in a direction away from the headrest body 200 and abuts against the opposite side of the unlocking through hole 2010c, at this time, the lower end of the transmission member 9 applies a pushing force to the locking body 2010 to move outwards (in a direction opposite to the first direction), and under the action of the pushing force, the locking body 2010 is pulled outwards in a direction away from the headrest body 200 to unlock the headrest body 200, that is, the headrest body 200 can be adjusted up and down in the up-down direction.
Conversely, when the pressing portion 2005 is released, the locking body 2010 carries the locking portion 2009 to reset, so as to lock the headrest body 200 again.
The pressing portion 2005 may be a convex column, a convex portion, a bump, or the like extending toward the unlocking case 2007. Specifically, the unlocking housing 2007 comprises a bottom plate and side plates arranged around the bottom plate, the bottom plate and the side plates enclose an open cavity 2007a, and the pressing portion 2005 can enter and exit the cavity 2007a from the open cavity. The unlocking case 2007 is vertically disposed, that is, the bottom plate is vertically disposed, the through hole is disposed at a position above the bottom plate, and other positions of the bottom plate are still solid plate structures.
Further, the locking and unlocking mechanism 7 further includes a third elastic restoring member 50, and the third elastic restoring member 50 is used for restoring the trigger member. Specifically, the third elastic restoring member 50 is disposed between the unlocking housing 2007 and the pressing portion 2005 to restore the pressing portion 2005. The unlocking housing 2007 is fixed relative to the backrest module 100. Specifically, a fixing rod is configured in a direction of the pressing portion 2005 toward the unlocking housing 2007, the third elastic resetting member 50 is sleeved on the fixing rod, the third elastic resetting member 50 abuts against a bottom plate of the unlocking housing 2007, and when the pressing portion 2005 is pressed, the third elastic resetting member 50 is in a compressed state. Conversely, when the pressing portion 2005 is released, the third elastic restoring member 50 is restored to the initial state. When the third elastic reset piece 50 is not provided, the pressing portion 2005 can be manually pushed in a direction opposite to the first direction to be reset.
It can be seen that, in the present application, by additionally providing the transmission member 9, the locking and unlocking mechanism 7 can be disposed on the left side, the right side, the upper side, and the like of the backrest module 100, and is no longer limited by the installation space, so that the installation is more convenient.
The first elastic restoring member 30, the second elastic restoring member 40 and the third elastic restoring member 50 are springs, torsion springs or other components having elastic functions.
The embodiment of the present application further provides a backrest assembly, which includes a backrest main body 100, a headrest main body 200 and a locking and unlocking mechanism 7, wherein the backrest main body 100 includes a first main body 10, the headrest main body 200 includes a second main body 20, the headrest main body 200 can move up and down relative to the backrest main body 100, and the headrest main body 200 is locked and unlocked through the locking and unlocking mechanism 7.
Taking a specific application scenario as an example, please refer to fig. 6 to 13 in combination with fig. 6 again, the locking and unlocking mechanism 7 is applied to a seat for adjusting the height of the headrest, in some embodiments, the backrest main body 100 includes a first main body 10, and the first main body 10 is provided with a mounting hole 10a; the headrest body 200 is provided with a second body 20, the second body 20 is movably inserted into the mounting hole 10a in the up-down direction, and the locking body 2010 can be locked to or separated from the second body 20. The first body 10 and the second body 20 can be used as a skeleton structure, have high strength, and can play a good role in connection and support.
Specifically, the first body 10 is provided with two mounting holes 10a, the second body 20 is provided with two insertion rods, the two insertion rods are inserted into the two mounting holes 10a in a one-to-one correspondence, and the adjustment of the longitudinal position of the second body 20 can be achieved by adjusting the positions of the insertion rods of the second body 20 in the mounting holes 10 a. In some embodiments, the back body 100 includes a back frame 4001, and the lower end of the first body 10 is inserted into a hole on the back frame 4001.
In some embodiments, the entirety of the second body 20 resembles an inverted "U" shape. The upper end of the second body 20 is provided with a connector to connect the headrest, and the connector is located between the two insert rods.
The locking and unlocking mechanism 7 can be arranged on the first body 10, and in the locking position, the locking and unlocking mechanism 7 is locked with the second body 20 so as to limit the up-and-down movement of the second body 20; in the unlock position, the lock unlocking mechanism 7 is separated from the second body 20 so that the second body 20 can move up and down. After the second body 20 is adjusted to a suitable height in the up-down direction, the locking and unlocking mechanism 7 can lock the second body 20 to prevent the second body 20 from moving further. Conversely, when the height of the second body 20 needs to be adjusted again, the second body 20 can be unlocked by the locking and unlocking mechanism 7.
In an alternative embodiment of the present application, the first body 10 is provided with a relief hole 8, and the relief hole 8 penetrates through a hole wall of the mounting hole 10a along a first direction; alternatively, the axis of the abdicating hole 8 is perpendicular to the axis of the mounting hole 10a, i.e. the first direction is perpendicular to the axis of the mounting hole 10 a. Illustratively, the first direction is an outside-in direction, i.e., a direction along the penetrating direction of the abdicating hole 8 and directed toward the mounting hole 10 a. In this embodiment, the locking and unlocking mechanism 7 penetrates through the abdicating hole 8 and extends into the mounting hole 10a, and the locking and unlocking mechanism 7 can reciprocate along the first direction to be located at the locking position or the unlocking position.
In the above, the locking and unlocking mechanism 7 may be inserted into the mounting hole 10a and abut against the second body 20, so that the second body 20 is locked against upward and downward movement. The locking and unlocking mechanism 7 can be completely withdrawn from the mounting hole 10a, and the second body 20 is separated from the locking and unlocking mechanism 7. Of course, the locking and unlocking mechanism 7 may be partially located in the mounting hole 10a in the unlocking position, and the blocking of the up-and-down movement of the second body 20 can be avoided as long as it is spaced from or slightly in contact with the second body 20.
Of course, in other embodiments, the first body 10 may not be provided with the mounting hole 10a, the avoiding hole 8, etc., for example, as in the first embodiment, the second body 20 is provided with a through hole, the first body 10 is movably inserted into the through hole along the vertical direction, the locking body 2010 is connected to the headrest body 200 through the second elastic restoring member 40, and can move vertically along with the headrest body 200, as shown in fig. 5, the first body 10 is provided with an engaging structure 10b, and the locking portion 2009 on the locking body 2010 can be engaged with the engaging structure 10 b.
Furthermore, the first body 10 or the second body 20 is provided with a clamping structure 20a/10b, and at the locking position, the locking and unlocking mechanism 7 is clamped and locked with the clamping structure 20a/10 b; in the unlock position, the lock unlocking mechanism 7 is separated from the engaging structure 20a/10 b. The second body 20 is provided with a plurality of engaging structures 20a/10b spaced from each other in the vertical direction, and after the second body 20 is adjusted to a suitable height, the locking portion 2009 is inserted into the second through hole 2010b and is matched with the corresponding engaging structure 20a/10b, so that the position of the second body 20 in the vertical direction can be locked.
Of course, in other embodiments, the second body 20 may be provided with a projection, and the locking and unlocking mechanism 7 may be provided with a groove, and in the locking position, the projection is inserted into the groove of the locking and unlocking mechanism 7, and in the unlocking position, the projection is separated from the groove.
In this embodiment, the second body 20 is inserted into the mounting hole 10a of the first body 10 and protrudes into the first through hole 2010a of the latching body 2010. In the second embodiment, when the locking body 2010 is pushed in the first direction, i.e., the inward direction, the locking portion 2009 in the second through hole 2010b snaps into the engaging structure 20a (shown in fig. 13) of the second body 20 to be in the locking position. When the latching body 2010 is pushed or pulled in a direction opposite to the first direction, i.e., in an outward direction, the latching portion 2009 in the second through hole 2010b moves outward together with the latching body 2010 to disengage from the catch structure 20a, in the unlocked position.
The back body 100 may further include a back frame 4001, and the lower end of the first body 10 may be inserted into the back frame 4001. The first body 10 may be made of plastic, and the second body 20 may be made of metal, however, both the first body 10 and the second body 20 may be made of plastic or metal.
The following describes the unlocking and locking processes in detail, taking the following direction as an example:
referring to fig. 1 to 5 again, in the first embodiment, when the pressing portion 2005 is pressed down along the first direction, the pressing portion 2005 overcomes the elastic force of the third elastic restoring member 50, and partially penetrates through the through hole to push the transmission member 9 toward the first direction, the transmission member 9 rotates toward the first direction, and drives the locking body 2010 to move toward the first direction together, until the locking portion 2009 on the locking body 2010 exits from the engaging structure 10b on the backrest body 100, at this time, the locking and unlocking mechanism 7 is in the unlocking position, the first elastic restoring member 30 is stretched, and the second elastic restoring member 40 and the third elastic restoring member 50 are both compressed. In the unlocked position, the headrest body 200 can reciprocate in the up-down direction with respect to the backrest body 100, and at the same time, the headrest body 200 also drives the lock body 2010 connected thereto to reciprocate in the up-down direction together.
When the pressing portion 2005 is released, the pressing portion 2005 is returned in the reverse direction of the first direction by the third elastic returning member 50, and the contact with the transmission 9 is released. The transmission member 9 is rotated in the opposite direction of the first direction by the first elastic restoring member 30, and at the same time, the locking body 2010 is moved in the opposite direction of the first direction by the second elastic restoring member 40 until the locking portion 2009 is engaged with the engaging structure 10b of the backrest body 100, and at this time, the locking and unlocking mechanism 7 is in the locking position.
Referring to fig. 6 to 13 again, in the second embodiment, the first end 91 may be a lower end, and the second end 92 may be an upper end. When the pressing portion 2005 is pressed down along the first direction, the pressing portion 2005 overcomes the elastic force of the third elastic reset piece 50, and partially penetrates through the through hole to push against the upper end of the transmission piece 9 in the first direction, because the lower end of the transmission piece 9 is connected to the locking main body 2010, the lower end of the transmission piece 9 moves in the opposite direction of the first direction and drives the locking main body 2010 to move in the opposite direction of the first direction together until the locking portion 2009 on the locking main body 2010 exits from the engaging structure 20a on the headrest main body 200, at this time, the locking and unlocking mechanism 7 is in the unlocking position, and the second elastic reset piece 40 and the third elastic reset piece 50 are compressed.
When the pressing portion 2005 is released, the pressing portion 2005 is returned in the reverse direction of the first direction by the third elastic returning member 50, and the contact with the upper end of the transmission 9 is released. The locking main body 2010 drives the lower end of the transmission member 9 to move towards the first direction under the action of the second elastic resetting member 40 until the locking portion 2009 is clamped into the clamping structure 20a on the headrest main body 200, and at this time, the locking and unlocking mechanism 7 is in the locking position.
In the above, in order to ensure that the upper end and the lower end of the transmission member 9 swing in different directions, the transmission member 9 may be rotatably connected to the backrest main body 100.
Referring again to fig. 6, in some embodiments, the headrest body 200 includes a headrest, the headrest includes a headrest framework 42 and a headrest foam 41, the headrest framework 42 is embedded in the headrest foam 41, and the headrest framework 42 serves as a strength member for shaping the headrest foam 41. The headrest foam 41 serves as an elastic soft member to cushion and support the neck of the passenger. The second body 20 may be fixed with the headrest framework 42.
Further, the backrest assembly further includes a headrest cover 2100, and the headrest cover 2100 includes a headrest front cover 2002 and a headrest rear cover 2004, and the headrest front cover 2002 is disposed at a front side of the headrest rear cover 2004 and is connected to each other. A cavity with a downward opening is formed between the headrest front cover 2002 and the headrest rear cover 2004, and the upper end of the second body 20 protrudes into the cavity from the opening, so that the headrest front cover 2002 is positioned on the front side of the second body 20, and the headrest rear cover 2004 is positioned on the rear side of the second body 20. It should be noted that the front headrest cover 2002 and the rear headrest cover 2004 may be connected together in a plug-in or concave-convex manner. In the above, the second elastic restoring member 40 may respectively connect the latching body 2010 and the headrest cover 2100 such that the latching body 2010 can move up and down along with the second body 20.
Embodiments of the present application further provide a seat comprising a seat cushion, a backrest assembly and a headrest body, the backrest body 100 of the backrest assembly being connected to the seat cushion, both generally forming an L-shaped structure. The angle between the seat cushion and the backrest 100 can be adjusted, i.e. the seat cushion and the backrest 100 can be rotatably connected.
The embodiment of the application further provides a vehicle, which comprises a vehicle body and the seat arranged in the vehicle body.
The vehicle can be a fuel automobile, a new energy automobile, a fuel-electric hybrid vehicle and the like.
With the increasing popularity of automobiles, different people prefer the automobiles to have different heights, so that the height of the headrest relative to the backrest seat needs to be emphasized in order to improve the riding comfort of the passengers, and therefore, an unlocking button is usually additionally arranged on the backrest seat in the prior art to achieve the purpose of adjusting the height of the headrest relative to the backrest seat. Due to the limitation of the vehicle type, the space in some vehicles is compact, and the installation space beside the backrest seat is often smaller, so that the installation direction of the unlocking button of the seat headrest is limited or the unlocking button cannot be installed smoothly.
Based on the above situation, in another embodiment of the present application, a seat back is further provided.
As shown in fig. 6 to 13, the seat back is schematically shown to include a back main body 100 and a lock unlocking mechanism 7.
In the embodiment of the present application, the backrest main body 100 is adapted to be connected with a headrest main body 200 (see fig. 6), and the backrest main body 100 includes a backrest frame 4001 and a headrest adjusting mechanism 6 provided on the backrest frame 4001.
Locking release mechanism 7 is including triggering, driving medium 9 and the locking portion 201 of setting on this headrest adjustment mechanism 6, and wherein, the upper end of this driving medium 9 contacts with this triggering, and this locking portion 201 is passed in the lower extreme activity of this driving medium 9, and wherein, through the motion of this triggering to make the lower extreme of this driving medium 9 drive this locking portion 201 and move towards the direction of unblock and locking, thereby carry out unblock and locking to this headrest adjustment mechanism 6. Specifically, this application is through addding this trigger member, driving medium 9 and locking portion 201, and this trigger member is connected with this locking portion 201 through this driving medium 9, promptly, and the upper end of this driving medium 9 contacts with this trigger member, and this locking portion 201 is passed in the lower extreme activity of this driving medium 9, and wherein, through the motion of this trigger member to impel the lower extreme of this driving medium 9 to drive this locking portion 201 and move towards the direction of unblock and locking, thereby unblock and locking this headrest adjustment mechanism 6. It can be seen that, in the present application, by adding the transmission member 9, the installation of the locking and unlocking mechanism 7 is no longer limited by the installation direction, and the trigger member may be disposed on any side of the backrest main body 100, that is, on the left side, right side, front side, rear side, upper side or lower side of the backrest main body 100, so as to greatly improve the flexibility of installation of the trigger member.
It should be noted that, since the heights of the passengers are different, in order to improve the comfort of the passengers when riding, the headrest adjusting mechanism 6 can be additionally arranged, and the passengers can find a comfortable riding direction by adjusting the longitudinal distance between the headrest adjusting mechanism 6 and the backrest frame 4001, so that the comfort of the passengers is greatly improved. Meanwhile, the installation of the locking and unlocking mechanism 7 is no longer limited by the installation orientation by the transmission member 9, and the trigger member can be disposed on any side of the backrest main body 100, so that the adjustment of the headrest adjusting mechanism 6 is more convenient. It should be noted that the "upper end" of the transmission member 9 is the upper end in the orientation shown in fig. 6, that is, the end of the transmission member 9 close to the top of the vehicle body is the upper end, and the end far from the top of the vehicle body is the lower end.
In an alternative embodiment of the present application, the headrest adjusting mechanism 6 includes a headrest rod supporting plastic frame 10 inserted into the backrest frame 4001, and a headrest frame assembly inserted into the headrest rod supporting plastic frame 10 and capable of sliding up and down in a longitudinal direction (which is a vertical direction from the bottom to the top of the vehicle body). Specifically, vertical through holes 10a are formed at both ends of the headrest frame assembly supporting plastic frame 10, the both ends of the headrest frame assembly are adapted to be inserted into the vertical through holes 10a, and the adjustment of the longitudinal position of the headrest frame assembly can be achieved by adjusting the positions of the both ends of the headrest frame assembly in the vertical through holes 10 a. In an alternative embodiment of the present application, the headrest frame assembly includes a headrest frame 20 inserted on the headrest rod supporting plastic frame 10 and slidable in the longitudinal direction.
It should be noted that the overall headrest framework 20 is shaped like an inverted "U".
After the headrest frame 20 is adjusted to an appropriate height in the longitudinal direction, the headrest frame 20 can be locked by the lock release mechanism 7.
Conversely, when the longitudinal height of the headrest frame 20 needs to be adjusted again, the headrest frame 20 can be unlocked by the lock/unlock mechanism 7.
As shown in fig. 1 to 5, in an alternative embodiment of the present application, a groove 8 with an opening facing outward is formed on the headrest rod support plastic frame 10, the locking portion 201 includes a headrest locking pin piece 2010 disposed in the groove 8, a longitudinal through hole 2010a through which the headrest frame 20 passes is formed on the headrest locking pin piece 2010, and a lateral through hole 2010b is formed on a side end surface of the headrest locking pin piece 2010, wherein the lateral through hole 2010b passes through the longitudinal through hole 2010a, and a center line of the lateral through hole 2010b is perpendicular to a center line of the longitudinal through hole 2010 a.
Specifically, when the longitudinal through hole 2010a of the headrest locking pin piece 2010 is moved to be fitted with the headrest frame 20, the headrest frame 20 can be made to move up and down within the longitudinal through hole 2010a so as to be conveniently adjusted to a suitable height.
The "longitudinal direction" in the "longitudinal through hole 2010a" means a direction passing through the upper end surface and the lower end surface of the headrest locking pin piece 2010.
The "lateral direction" in the "lateral through hole 2010b" refers to a direction that passes through the left end surface and the right end surface of the headrest locking pin piece 2010. The center line of the transverse through hole 2010b and the center line of the longitudinal through hole 2010a are arranged in a cross shape.
In an alternative embodiment of the present application, the locking portion 201 further includes a locking pin 2009 movably disposed in the transverse through hole 2010b, and the locking pin 2009 is adapted to penetrate through the headrest frame 20 and lock the headrest frame 20. Specifically, after the headrest framework 20 is adjusted to a suitable position in the longitudinal direction, in order to fix the headrest framework 20 in the longitudinal direction, the locking pin 2009 is inserted into the transverse through hole 2010b and penetrates through the headrest framework 20, so that the headrest framework 20 can be positioned, and the headrest framework 20 is prevented from moving in the longitudinal direction.
It should be noted that, a plurality of engagement structures arranged at intervals may be configured on the headrest framework 20 along the longitudinal direction, and after the headrest framework 20 is adjusted to a suitable angle, the locking pin 2009 is inserted into the transverse through hole 2010b and is adapted to the corresponding engagement structure, so that the position of the headrest framework 20 in the longitudinal direction can be locked.
In an alternative embodiment of the present application, an unlocking through-hole 2010c is also formed in the headrest locking pin piece 2010.
The trigger member includes a headrest unlocking button 2005 and a headrest unlocking button cover 2007, wherein an upper end of the transmission member 9 contacts the headrest unlocking button cover 2007, and a lower end of the transmission member 9 is movably inserted into the unlocking through hole 2010c. It should be noted that the transmission member 9 is preferably a connecting plate, the width of the upper end of the connecting plate is greater than that of the lower end of the connecting plate, and the lower end of the connecting plate can be a rod shape, so that the connecting plate can be conveniently matched with the unlocking through hole 2010c.
Note that the headrest unlocking button cover 2007 is integrally configured as a groove body having an opening facing the outside. The lower end of the transmission member 9 can freely swing in the unlocking through-hole 2010c by an external force.
The headrest release button 2005 is configured with a pressing portion S which may be a boss, a projection, a bump, or the like extending toward the headrest release button cover 2007. A through hole (not shown in the figure) is configured on the headrest unlocking button cover 2007, specifically, the headrest unlocking button cover 2007 comprises a bottom plate and side plates arranged around the bottom plate, wherein the headrest unlocking button cover 2007 is vertically arranged, that is, the bottom plate is vertically arranged, the through hole is arranged at the upper end of the bottom plate, and the lower end of the bottom plate is still a solid plate body structure.
The headrest unlocking button 2005 is pressed, the pressing portion S penetrates through the through hole to push the upper end of the transmission member 9 to move towards the direction close to the headrest framework 20, meanwhile, the lower end of the transmission member 9 moves towards the direction far away from the headrest framework 20 and abuts against the opposite side of the unlocking through hole 2010c, at this time, the lower end of the transmission member 9 applies the pushing force to the headrest locking pin piece 2010 to move towards the outside, and under the action of the pushing force, the headrest locking pin piece 2010 is pulled outwards towards the direction far away from the headrest framework 20 to unlock the headrest framework 20, that is, the headrest framework 20 can be adjusted vertically in the longitudinal direction.
Conversely, when the headrest unlocking button 2005 is released, the headrest locking pin piece 2010 is reset together with the locking pin 2009 to lock the headrest frame 20 again.
It can be seen that, in the present application, by additionally arranging the transmission member 9, the locking and unlocking mechanism 7 can be arranged on the left side, the right side, the upper side, the lower side, the front side, the rear side and the like of the headrest rod supporting plastic framework 10, and is not limited by the installation space, so that the installation is more convenient and flexible.
In an alternative embodiment of the present application, the locking and unlocking mechanism 7 further includes an elastic restoring member 50, and the elastic restoring member 50 is disposed between the headrest unlocking button 2005 and the headrest unlocking button cover 2007. Specifically, a fixing rod is configured in a direction of the headrest unlocking button 2005 toward the headrest unlocking button cover 2007, one end of the elastic reset piece 50 is sleeved on the fixing rod, and the other end abuts against a bottom plate of the headrest unlocking button cover 2007, and when the headrest unlocking button 2005 is pressed, the elastic reset piece 50 is in a compressed state. On the contrary, when the headrest unlocking button 2005 is released, the elastic restoring member 50 is restored to the initial state.
In a specific embodiment of the present application, the elastic restoring member 50 is preferably a spring, a torsion spring or other components having an elastic function.
In an alternative embodiment of the present application, the headrest frame assembly further comprises a headrest cover enclosing the headrest frame 20 and the headrest rod support plastic frame 10.
In an alternative embodiment of the present application, the headrest cover includes a headrest front cover 2002 disposed on the front side of the headrest frame 20 and the headrest rod supporting plastic frame 10, and a headrest rear cover 2004 disposed on the rear side of the headrest frame 20 and the headrest rod supporting plastic frame 10, wherein a through opening is configured on the headrest front cover 2002. It should be noted that the front headrest cover 2002 and the rear headrest cover 2004 may be connected together in a plug-in or concave-convex manner.
The through-hole is formed through the connecting member connected to the headrest body 200.
In an alternative embodiment of the present application, a headrest cover sheet adapted to cover the through opening is provided in the headrest cover. Specifically, since the opening provided in the headrest front cover 2002 is relatively large in size and visible to the naked eye, the rest exposed through the opening can be effectively blocked by adding the headrest cover sheet for the sake of beauty.
According to a second aspect of the present application, there is also provided a seat comprising a seat back as described above. The headrest body 200 is connected to the backrest body 100.
According to a third aspect of the present application, there is also provided a vehicle including a vehicle body, and further including the above-described seat provided in the vehicle body.
It should be noted that the vehicle may be a fuel automobile, a new energy automobile, a commercial vehicle, or the like.
In summary, in the present application, by additionally providing the trigger member, the transmission member 9 and the locking portion 201, the trigger member is connected to the locking portion 201 through the transmission member 9, that is, the upper end of the transmission member 9 contacts with the trigger member, and the lower end of the transmission member 9 movably passes through the locking portion 201, wherein the lower end of the transmission member 9 is driven to drive the locking portion 201 to move in the unlocking and locking directions by the movement of the trigger member, so as to unlock and lock the headrest adjusting mechanism 6. It can be seen that, in the present application, by adding the transmission member 9, the installation of the locking and unlocking mechanism 7 is no longer limited by the installation direction, and the trigger member may be disposed on any side of the backrest main body 100, that is, on the left side, right side, front side, rear side, upper side or lower side of the backrest main body 100, so as to greatly improve the flexibility of installation of the trigger member.
It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications of this invention are intended to be covered by the scope of the invention as expressed herein.
Claims (18)
1. A backrest assembly for use in a vehicle, comprising:
the backrest main body is movably connected with the headrest main body along the vertical direction of the backrest main body;
the locking and unlocking mechanism comprises: the headrest main body is fixed relative to the backrest main body at the locking position; in the unlocked position, the headrest body is movable up and down relative to the backrest body.
2. The backrest assembly of claim 1, wherein the transmission member is provided with a rotational connection portion, the rotational connection portion being rotationally connected to the backrest body.
3. A backrest assembly according to claim 2, wherein the axis of rotation of the rotation connection is in an up-down direction.
4. The backrest assembly of claim 2, wherein the rotation axis of the rotation connecting portion intersects with the up-down direction, and the rotation axis of the rotation connecting portion also intersects with the moving direction of the locking body.
5. The backrest assembly of claim 4, wherein said transmission member has opposite first and second ends, said first end corresponding to said locking body and said second end corresponding to said trigger member; the rotational connection is located between the first end and the second end;
when the second end is subjected to acting force applied by the trigger piece along a first direction, the first end drives the locking main body to move along the reverse direction of the first direction so as to be located at the unlocking position.
6. The backrest assembly of claim 1, wherein said trigger member and said locking body are disposed on opposite sides of said transmission member;
when the trigger piece receives external force along a first direction, the transmission piece drives the locking main body to move along the first direction.
7. The backrest assembly of claim 1, wherein said transmission member is elongated in a vertical direction.
8. The backrest assembly of claim 1, further comprising a first resilient return member connecting said transmission member and said backrest body, respectively;
in the locking position, the first elastic resetting piece has a tendency of pushing against the transmission piece to lock the locking main body and the headrest main body or the backrest main body.
9. The backrest assembly of claim 1, further comprising a second resilient return member connecting said latch body and said backrest body or headrest body, respectively;
in the locking position, the second elastic resetting piece has a tendency of pushing against the locking main body and the headrest main body or locking with the backrest main body.
10. The backrest assembly of claim 1, wherein the locking body defines a first through hole extending in a vertical direction, and the first through hole is used for the headrest body or the backrest body to movably pass through.
11. A backrest assembly as claimed in claim 10, wherein the locking body is provided with a locking portion which is detachably connected to the locking body, the locking portion being located at least partially within the first through-hole and being adapted to lock the headrest body or the backrest body.
12. The backrest assembly of claim 11, wherein the locking body defines a second through hole, the second through hole extends through a wall of the first through hole, and the locking portion is inserted into the second through hole.
13. The backrest assembly of claim 1, wherein the trigger comprises an unlocking housing and a pressing portion, the pressing portion is movably connected with the unlocking housing, and the unlocking housing is provided with a through hole;
the pressing portion can penetrate through the through hole to push the transmission piece to move when being subjected to external force along the first direction, so that the locking main body is located at the unlocking position.
14. The backrest assembly of any of claims 1-13, wherein the backrest body is provided with mounting holes; the headrest main body is movably inserted into the mounting hole along the vertical direction, the locking main body is movably connected with the backrest main body along the first direction, and the locking main body can be locked with or separated from the headrest main body; or,
the headrest main body is movably sleeved on the backrest main body in the up-down direction, the locking main body is movably connected with the headrest main body in the first direction, and the locking main body can be locked with or separated from the backrest main body.
15. The backrest assembly of claim 14, wherein the backrest body is provided with a relief hole extending through a wall of the mounting hole in a first direction; the locking main body extends into the mounting hole from the abdicating hole.
16. The backrest assembly of claim 1, wherein the backrest body or the headrest body is provided with a snap-fit structure, and in the locked position, the locking body is snap-fitted with the snap-fit structure.
17. A seat comprising a backrest module according to any one of claims 1 to 16 and a headrest body.
18. A vehicle comprising a body, and further comprising the seat of claim 17 disposed within said body.
Applications Claiming Priority (4)
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CN202210118972 | 2022-02-08 | ||
CN2022202581517 | 2022-02-08 | ||
CN202220258151 | 2022-02-08 | ||
CN2022101189725 | 2022-02-08 |
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CN202221919381.XU Active CN218021298U (en) | 2022-02-08 | 2022-07-22 | Backrest assembly, seat and vehicle |
CN202210870441.1A Pending CN116605112A (en) | 2022-02-08 | 2022-07-22 | Backrest assembly, seat and vehicle |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
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CN202210870441.1A Pending CN116605112A (en) | 2022-02-08 | 2022-07-22 | Backrest assembly, seat and vehicle |
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- 2022-07-22 CN CN202221919381.XU patent/CN218021298U/en active Active
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