CN218661464U - Unlocking mechanism of seat backrest and automobile seat - Google Patents

Abstract

The utility model provides a release mechanism and car seat of backrest. The utility model discloses a release mechanism of backrest includes the base, rotationally locates unblock attacker on the base and acts as go-between. The protective sleeve of the pull wire is fixed on the base, the wire body of the pull wire is connected to the unlocking handle, and the rotating unlocking handle forms traction on the pull wire; the unlocking handle is provided with a hinge part, an operating part and a connecting part, the unlocking handle is hinged and connected with the base through the hinge part, and the connecting part is provided with a pull belt; poking the operating portion or dragging the stretching strap homoenergetic and forming and ordering about the unblock attacker for the base pivoted. The utility model discloses an unlocking mechanism of seat back utilizes an unlocking mechanism to provide two operation methods and operating element simultaneously, has not only satisfied the different demands of seat back unblock operation, is favorable to the structure retrench of unlocking mechanism and manufacturing cost's reduction moreover.

Description

Unlocking mechanism of seat backrest and automobile seat

Technical Field

The utility model relates to an automobile parts technical field, in particular to release mechanism of backrest. Additionally, the utility model discloses still relate to a car seat.

Background

The seat unlocking buckle is a set of mechanism used for shoulders of seat backs of middle and rear rows of automobiles and used for unlocking a locking mechanism in the seat, so that the seat can be used for adjusting the angle of the seat back or performing operations such as falling of the seat back and the like.

In order to improve convenience of operation and use of passengers, two unlocking mechanisms, namely a seat back unlocking buckle and an unlocking pull belt, are arranged on the conventional middle-row seat and the conventional rear-row seat at the same time, so that the seat back can be unlocked.

At present, an unlocking handle on a seat backrest is generally arranged at the top of the backrest, an unlocking pull belt is generally arranged at the back of the backrest, and two sets of unlocking mechanisms are arranged at different positions and have different use scenes; the release catch on the top of the backrest is typically operated from the front of the seat back; unlocking strap clasps on the back of the seat are typically used to operate from behind the seat back. The arrangement of the two unlocking mechanisms can obviously improve the operation convenience when the seat back is unlocked.

However, the arrangement of two sets of unlocking mechanisms increases the cost and weight of the seat, and puts higher requirements on the arrangement space inside the seat, thereby increasing the complexity of the seat structure.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a release mechanism of backrest to a technical scheme who integrates unblock attacker and stretching strap simultaneously on one set of release mechanism is provided.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

an unlocking mechanism of a seat backrest comprises a base, an unlocking buckle handle and a pull wire, wherein the unlocking buckle handle is rotatably arranged on the base; the protective sleeve of the pull wire is fixed on the base, the wire body of the pull wire is connected to the unlocking buckle, and the rotating unlocking buckle forms traction on the pull wire;

the unlocking buckle hand is provided with a hinge part, an operating part and a connecting part, the unlocking buckle hand is hinged and connected with the base through the hinge part, and a pull belt is arranged on the connecting part; poking the operation part or pulling the pull belt can form the drive for the rotation of the unlocking handle relative to the base.

Furthermore, the unlocking buckle hand is provided with a body, and the hinged part is arranged in the middle of the body and extends towards one side of the body; the operating part and the connecting part are arranged at two ends of the body, and the wire body is connected to the part where the body is connected with the hinge part.

Furthermore, a stay wire connecting groove is formed in the connecting part of the body and the hinged part, and the connecting block of the wire body is arranged in the stay wire connecting groove.

Further, the operating part comprises a buckle plate formed by bending the end part of the body towards the side back to the hinge part.

Furthermore, the connecting part comprises a pull belt pin arranged at the end part of the body, and the pull belt is tied on the pull belt pin.

Further, the base comprises a frame and an outer decorative plate arranged on the periphery of the frame, and a window is formed in the outer decorative plate; the hinge part is hinged with the frame, and the operating part is positioned in the window.

Further, a cover is arranged in the window and used for shielding the frame exposed between the external decoration plate and the operating part.

Furthermore, an elastic reset piece is arranged between the unlocking handle and the base, and the unlocking handle which rotates relative to the base and leaves the initial position can return to the initial position under the action of the elastic reset piece.

Furthermore, an elastic buffer piece is arranged between the unlocking handle and the base, and the elastic buffer piece and the hinge part of the hinge part are arranged at intervals; the unlocking buckle rotates relative to the base and reaches a set position, and the elastic buffer part is abutted to the base.

Compared with the prior art, the utility model discloses following advantage has:

the unlocking mechanism of the seat backrest of the utility model can drive the unlocking mechanism to act by simultaneously arranging the operation part and the drawstring on the unlocking handle and shifting the operation part or pulling the drawstring so as to complete the unlocking operation of the seat backrest, thereby providing a technical scheme for simultaneously integrating the unlocking handle and the drawstring on one set of unlocking mechanism; the unlocking mechanism simultaneously provides two operation modes and operation parts, so that different requirements of unlocking operation of the seat backrest are met, and the structure simplification and the manufacturing cost reduction of the unlocking mechanism are facilitated.

In addition, the whole structure that adopts similar to "T" shape of unblock attacker to connect the line body in the position that middle part body and articulated portion link to each other, make the arm of force of operation portion and connecting portion two power points all be greater than the arm of force of line body, thereby with the form of lever, with the pin joint of articulated portion as the fulcrum, can easily accomplish the pivoted drive operation to unblock attacker.

Another object of the utility model is to provide a car seat, be equipped with on the car seat the release mechanism of backrest. The utility model discloses a car seat has the technical advantage that the release mechanism of foretell backrest possessed.

Drawings

The accompanying drawings, which form a part of the present disclosure, are provided to provide a further understanding of the present disclosure, and the exemplary embodiments and descriptions thereof are provided to explain the present disclosure, wherein the related terms in the front, back, up, down, and the like are only used to represent relative positional relationships, and do not constitute an undue limitation of the present disclosure. In the drawings:

fig. 1 is a schematic overall structure diagram of an unlocking mechanism of a seat back according to a first embodiment of the present invention;

FIG. 2 is a schematic structural view of the unlocking mechanism shown in FIG. 1 at the view angle A;

FIG. 3 is a schematic structural view of the unlocking mechanism shown in B of FIG. 1;

fig. 4 is an exploded view of an unlocking mechanism according to a first embodiment of the present invention;

fig. 5 is a schematic view of an assembly structure of the release button handle, the pull wire and the pull belt according to the first embodiment of the present invention;

description of the reference numerals:

1. pulling a wire; 10. a sheath; 100. a sheath fixing seat; 11. a wire body; 110. connecting blocks;

2. a base; 20. an outer decorative panel; 200. a window; 21. a cover; 22. a frame; 220. a shaft hole; 221. a first assembly space; 222. a second assembly space; 223. a first vertical plate; 224. a second vertical plate; 225. a third vertical plate; 226. a first base plate; 227. a second base plate; 228. a stay wire mounting base; 23. a rotating shaft;

3. unlocking the buckle; 30. a body; 300. a stay wire connecting groove; 301. a first link; 302. a second link; 303. buckling the plate; 304. a strap pin; 305. a hinge hole;

4. pulling the belt; 500. a torsion spring; 600. rubber nails.

Detailed Description

It should be noted that, in the case of no conflict, the embodiments and features of the embodiments of the present invention may be combined with each other.

In the description of the present invention, it should be noted that if terms indicating directions or positional relationships such as "up", "down", "inside", "back", etc. appear, they are based on the directions or positional relationships shown in the drawings, and are only for convenience of description of the present invention and simplification of description, but do not indicate or imply that the device or element indicated must have a specific direction, be constructed and operated in a specific direction, and thus, should not be construed as limiting the present invention.

Furthermore, in the description of the present invention, the terms "mounted," "connected," and "connecting" are to be construed broadly unless expressly limited otherwise. For example, the connection may be a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or through both elements. To those of ordinary skill in the art, the specific meaning of the above terms in the present invention can be understood in combination with the specific situation.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

Example one

The embodiment relates to an unlocking mechanism of a seat backrest, and provides a technical scheme that an unlocking handle 3 and a pull belt 4 are simultaneously integrated on a set of unlocking mechanism; one exemplary structure of which is shown in fig. 1-4.

In general, the release mechanism of the seat back includes a base 2, a release button 3 rotatably provided on the base 2, and a wire 1. The protecting sleeve 10 of the pull wire 1 is fixed on the base 2, the wire body 11 of the pull wire 1 is connected to the unlocking buckle handle 3, and the rotating unlocking buckle handle 3 forms traction on the pull wire 1; the unlocking buckle 3 is provided with a hinge part, an operating part and a connecting part, the unlocking buckle 3 is hinged and connected with the base 2 through the hinge part, and the connecting part is provided with a pull belt 4; poking the operating part or pulling the pulling strip 4 can form the drive for the rotation of the unlocking handle 3 relative to the base 2.

The unlocking mechanism of the embodiment is mainly arranged on the shoulder parts of the seat backs of the middle and rear rows and can be fixedly arranged on the seat framework through screws. The stay wire 1 on the unlocking mechanism is connected with a locking mechanism in the seat, and the locking state of the locking mechanism on the seat backrest can be released by operating the unlocking mechanism so as to adjust the angle of the seat backrest or lay down the seat backrest.

Specifically, the base 2 is mounted on the seat frame by screws, and the release catch 3 is rotatably provided on the base 2. The release button 3 of the present embodiment has a body 30, and the body 30 may be in the form of a long plate and may have a certain curvature. The hinge part is arranged in the middle of the body 30 and extends towards one side of the body 30; the operation part and the connection part are provided at both ends of the body 30, and the wire body 11 is connected to a portion where the body 30 and the hinge part are connected. The whole unlocking buckle 3 adopts a structure similar to a T shape, the wire body 11 is connected to the position where the middle body 30 is connected with the hinging part, the force arms of the acting points of the operating part and the connecting part are larger than the force arm of the wire body 11, and therefore the driving operation of the rotation of the unlocking buckle 3 can be easily completed by taking the hinging point of the hinging part as a fulcrum in a lever mode.

Meanwhile, a wire connecting groove 300 is formed at a portion where the body 30 and the hinge portion are connected, and the connecting block 110 of the wire body 11 is disposed in the wire connecting groove 300. The connecting groove 300 for the pull wire is arranged at the connecting position of the wire body 11, so that the connecting installation of the wire body 11 and the unlocking buckle 3 is facilitated.

There are of course many options for the specific design of the operating portion, the hinge portion and the connecting portion. In this embodiment, the operating portion includes a buckle plate 303 bent from the top end of the main body 30 toward the side facing away from the hinge portion. The operating part is arranged to be in a bent buckling plate 303 form, so that the buckling plate 303 can be conveniently shifted, and the buckling plate 303 can be flush with the outer decorative plate 20 of the base 2 to improve the external appearance of the whole unlocking mechanism.

The connecting portion includes a pull strap pin 304 disposed at the bottom end of the body 30, and the pull strap 4 is tied to the pull strap pin 304. Through set up stretching strap round pin 304 at the tip of body 30, be convenient for stretching strap 4 and the assembly of being connected of unblock attacker 3, and be favorable to ensureing the stretching strap 4 and the fastness of being connected between unblock attacker 3. The length of the drawstring 4 and the position of the drawstring 4 led out from the seat back can be flexibly arranged according to the use requirement and the consideration of the operation convenience.

The hinge parts are a first connecting rod 301 and a second connecting rod 302 which are arranged on the body 30 at intervals, and a hinge hole 305 arranged on the first connecting rod 301 and the second connecting rod 302; the specific form of the articulated mounting of the base 2 is described below in connection with the structural arrangement of the base 2.

As shown in fig. 4 and fig. 5, in the present embodiment, the base 2 includes a frame 22 and an exterior plate 20 disposed at the periphery of the frame 22, and the exterior plate 20 is provided with a window 200; the hinge portion is hingedly connected to the frame 22 and the operative portion is located in the window 200. The base 2 is designed into two parts of a frame 22 and an outer decorative plate 20, the frame 22 carries the installation of the unlocking handle 3, and the outer decorative plate 20 is exposed out of the outer surface of the seat back, so that the effects of decoration and attractive appearance of the seat back are achieved. The window 200 is provided on the outer decoration plate 20, and the operation part (i.e., the buckle plate 303) is exposed in the window 200, so that the operation of the striking is facilitated.

Also, a cover 21 is provided in the window 200, and the cover 21 is used to cover the frame 22 exposed between the exterior trim 20 and the operating portion. Based on the assembly requirement of the unlocking handle 3 on the base 2 and the space requirement for shifting the buckle plate 303, the size of the window 200 is certainly larger than that of the buckle plate 303, so that a space is formed between the outer decoration plate 20 and the buckle plate 303 on the periphery of the window 200, the internal structures of the unlocking mechanisms such as the frame 22 and the like are exposed in the window 200, the shielding cover 21 is arranged in the window 200, the shielding of the internal structures of the unlocking mechanisms can be formed, and the effect of beautifying the external appearance of the unlocking mechanisms is achieved.

In addition, in the present embodiment, an elastic return member is provided between the release button 3 and the base 2, and the release button 3 that is rotated relative to the base 2 to be away from the initial position can be returned to the initial position by the elastic return member. An elastic buffer piece is arranged between the unlocking handle 3 and the base 2, and the elastic buffer piece and the hinge part of the hinge part are arranged at intervals; the unlocking handle 3 which rotates relative to the base 2 and reaches a set position abuts against the base 2 through an elastic buffer.

Through set up the elasticity piece that resets between unblock attacker 3 and base 2, can realize the automatic playback of unblock attacker 3 to guarantee that after removing the operation, the backrest can in time be locked by the locking mechanical system of the inside setting of seat, prevent that the backrest from changing the angle that has adjusted by oneself. Preferably, the elastic restoring member employs a torsion spring 500. Meanwhile, based on the consideration of limiting the rotation angle of the unlocking handle 3, a limiting structure is arranged on the base 2, and when the unlocking handle 3 rotates to a set position where unlocking can be realized, the unlocking handle 3 is abutted to the limiting structure on the base 2; by arranging the elastic buffer piece between the unlocking handle 3 and the base 2, the unlocking handle 3 reaching the set position can be buffered, and the unlocking handle 3 is prevented from rigidly colliding with the base 2 when reaching the set position, so that abnormal sound is generated. Preferably, the elastic buffer is a rubber nail 600 provided on the release catch 3.

Specifically, in the present embodiment, the frame 22 includes a first vertical plate 223, a second vertical plate 224, and a third vertical plate 225 that are disposed at intervals, a first assembling space 221 is formed between the first vertical plate 223 and the second vertical plate 224, and a second assembling space 222 is formed between the second vertical plate 224 and the third vertical plate 225; meanwhile, a first bottom plate 226 is connected between the bottom ends of the first vertical plate 223 and the second vertical plate 224, and a second bottom plate 227 is connected between the bottom ends of the second vertical plate 224 and the third vertical plate 225.

The hinge portion of the present embodiment includes a first link 301 and a second link 302 provided side by side on the body 30, depending on the form of the frame 22; the end parts of the first connecting rod 301 and the second connecting rod 302 are provided with hinge holes 305, and the first vertical plate 223, the second vertical plate 224 and the third vertical plate 225 are provided with shaft holes 220. Each shaft hole 220 and each hinge hole 305 are coaxially arranged and penetrate through the rotating shaft 23 to form a hinge connection of the hinge part and the frame 22. At this moment, preferably, the torsion spring 500 is sleeved on the rotating shaft 23 located in the first assembling space 221, and two ends of the torsion spring 500 abut against the first bottom plate 226 and the body 30 respectively, so as to form elastic constraint on the unlocking handle 3.

The above-described limit structure may be implemented by the first base plate 226, the first base plate 226 is set in a posture inclined upward, and when the unlocking knob 3 reaches the set position, the root of the first link 301 interferes with the first base plate 226; the rubber nail 600 described above may now be mounted at the root of the first link 301, creating a cushion between the first link 301 and the first base plate 226. In addition, a pull wire mounting seat 228 may be provided on the second base plate 227, the sheath fixing seat 100 of the sheath 10 may be fixed on the pull wire mounting seat 228, and the pull wire connecting groove 300 may be provided at a portion where the second link 302 is connected to the body 30; in this way, the assembly of the wire 1 is performed in the second assembly space 222, the torsion spring 500 and the limit of the set position are provided in the first assembly space 221, so that the assembly structure of the release catch 3 on the frame 22 is more reasonably arranged.

In summary, in the unlocking mechanism of the seat back according to the embodiment, the operating portion and the pull belt 4 are simultaneously arranged on the unlocking handle 3, and the unlocking mechanism can be driven to act by shifting the operating portion or pulling the pull belt 4 so as to unlock the seat back, so that a technical scheme that the unlocking handle 3 and the pull belt 4 are simultaneously integrated on one set of unlocking mechanism is provided; the unlocking mechanism simultaneously provides two operation modes and operation parts, so that different requirements of unlocking operation of the seat backrest are met, and the structure simplification and the manufacturing cost reduction of the unlocking mechanism are facilitated.

Example two

The embodiment relates to an automobile seat, and the automobile seat is provided with an unlocking mechanism of a seat back provided by the first embodiment.

By adopting the unlocking mechanism of the first embodiment, the operating buckle plate 303 or the pull belt 4 can pull the pull wire 1, so that the seat backrest can be unlocked. The whole unlocking mechanism can be fixed with a mounting point reserved on a seat framework in the middle and rear rows of seats through a screw and is connected with a stay wire 1 extending out of the seat through a locking mechanism. The whole unlocking handle 3 drives the traction stay wire 1 in a lever mode, the force required by operation can be reduced, and the buckle plate 303 and the pull belt 4 can be operated simultaneously to further reduce the required force. The torsion spring 500 and the rubber nail 600 arranged in the unlocking mechanism ensure good reset effect and operation hand feeling of the unlocking handle 3, and the design principle of ergonomics is better met.

In addition, the unlocking mechanism provides two operating points of the buckle plate 303 and the drawstring 4 through a set of mechanism, so that the unlocking structure of the seat backrest is simplified on the premise of realizing the same function required by using and operating, and the manufacturing cost and the self weight of the seat are relatively reduced.

The above description is only for the preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (10)

1. An unlocking mechanism of a seat back is characterized in that:

comprises a base (2), an unlocking buckle (3) which is rotatably arranged on the base (2), and a pull wire (1);

a sheath (10) of the pull wire (1) is fixed on the base (2), a wire body (11) of the pull wire (1) is connected to the unlocking handle (3), and the rotating unlocking handle (3) pulls the pull wire (1);

the unlocking buckle (3) is provided with a hinged part, an operating part and a connecting part, the unlocking buckle (3) is hinged with the base (2) through the hinged part, and a pull belt (4) is arranged on the connecting part; poking the operating part or pulling the pull belt (4) can drive the unlocking handle (3) to rotate relative to the base (2).

2. The unlocking mechanism of a seat back according to claim 1, wherein:

the unlocking buckle (3) is provided with a body (30), the hinged part is arranged in the middle of the body (30) and extends towards one side of the body (30);

the operation part and the connecting part are arranged at two ends of the body (30), and the wire body (11) is connected to the part where the body (30) is connected with the articulated part.

3. The unlocking mechanism of a seatback according to claim 2, wherein:

a stay wire connecting groove (300) is formed in the connecting part of the body (30) and the hinged part, and a connecting block (110) of the wire body (11) is arranged in the stay wire connecting groove (300).

4. The unlocking mechanism of a seatback according to claim 2, wherein:

the operating part comprises a buckle plate (303) which is formed by bending the end part of the body (30) towards the side back to the hinge part.

5. The unlocking mechanism of a seatback according to claim 2, wherein:

the connecting part comprises a drawstring pin (304) arranged at the end part of the body (30), and the drawstring (4) is tied on the drawstring pin (304).

6. The unlocking mechanism of a seatback according to claim 1, wherein:

the base (2) comprises a frame (22) and an outer decorative plate (20) arranged on the periphery of the frame (22), and a window (200) is formed in the outer decorative plate (20);

the hinge part is hinged with the frame (22), and the operating part is positioned in the window (200).

7. The unlocking mechanism of a seatback according to claim 6, wherein:

a cover (21) is provided in the window (200), and the cover (21) is used for shielding the frame (22) exposed between the external decoration plate (20) and the operation part.

8. The unlocking mechanism of a seatback according to any one of claims 1 to 7, wherein:

an elastic reset piece is arranged between the unlocking handle (3) and the base (2), and the unlocking handle (3) which rotates relative to the base (2) to leave the initial position can return to the initial position under the action of the elastic reset piece.

9. The unlocking mechanism of a seatback according to claim 8, wherein:

an elastic buffer piece is arranged between the unlocking handle (3) and the base (2), and the elastic buffer piece and the hinge part of the hinge part are arranged at intervals;

the unlocking handle (3) rotates relative to the base (2) and reaches a set position, and the elastic buffer part is abutted to the base (2).

10. An automobile seat, characterized in that:

the automobile seat is provided with the unlocking mechanism of the seat back as claimed in any one of claims 1 to 9.

Images