CN207190846U - Motor vehicle seat back unlocking mechanism and automotive seat and automobile - Google Patents

Abstract

The utility model provides a car seat back unlocking mechanism, a car seat and a car. The car seat back unlocking mechanism of the utility model includes an unlocking piece whose one end is connected to the central shaft for unlocking the recliner, and the other end forms an unlocking end. One end is pivotally arranged on the lower connecting plate of the recliner, and the other end forms a forward unlocking lever at the forward driving end, one end is pivotally arranged on the lower connecting plate of the recliner, and the other end is a connecting rod connected to the rearward unlocking lever in rotation , and one end is transmission-connected with the unlocking end, and the other end forms a rearward unlocking lever that is driven backward and is rotatably connected with the connecting rod. The car seat unlocking mechanism of the utility model can realize two-way unlocking of the recliner. At the same time, the unlocking mechanism has a simple structure, low processing and manufacturing costs, and can facilitate structural integration to facilitate assembly and has good practicability.

Description

Car seat back unlocking mechanism and car seat and car

technical field

The utility model relates to the technical field of automobiles, in particular to an automobile seat back unlocking mechanism. The utility model also relates to a car seat using the car seat back unlocking mechanism, and a car equipped with the car seat.

Background technique

In the prior art, for the backrest folding car seat, it is connected by a recliner through the seat cushion and the backrest, and then the multi-angle adjustment of the backrest is realized by using the recliner. In specific use, by using the unlocking mechanism to rotate the axis of the recliner by a certain angle, the unlocking of the recliner is realized. After the unlocking is completed, the axis of the adjuster is reset, and the locking of the recliner can be realized again.

At present, there are three types of unlocking mechanisms used for recliners. One is to weld an unlocking piece on the axis of the recliner. The unlocking operation force is large and uncomfortable, and it is easy to block the unlocking strap after the seat back is down, which is not suitable for seats with wider wings.

The second is to add force reduction mechanisms such as unlocking handles and unlocking levers to the unlocking piece. This type of unlocking mechanism has a small operating force and high unlocking comfort, but it also has high costs and cannot be used for seats with small shoulder space. Insufficient layout.

The third is to add a pulley block to the unlocking piece for unlocking. It also has the characteristics of small operating force and high unlocking comfort, but at the same time, it also has complicated process and high cost. After the seat back is down, it is easy to block the unlocking belt. The relatively spacious seat does not apply to the shortcomings.

In addition, for the above-mentioned three existing recliner unlocking mechanisms, it also has the disadvantage that it can only be unlocked in one direction, and cannot be unlocked behind the seat. Unlocking the backrests of the last row of seats in the trunk creates a major nuisance.

Utility model content

In view of this, the utility model aims to propose an unlocking mechanism for the backrest of a car seat, in order to overcome at least one deficiency in the prior art and provide a backrest unlocking mechanism with good practicability.

In order to achieve the above object, the technical solution of the utility model is achieved in that:

A car seat back unlocking mechanism, comprising:

The unlocking piece, one end is connected with the central axis of the recliner unlocking, and the other end forms the unlocking end;

Forward unlocking lever, one end is pivotally arranged on the lower connecting plate of the recliner, and the other end forms a forward driving end, and the forward unlocking lever is connected to the unlocking end in transmission, so as to Applying force towards the front of the backrest constitutes the unlocking rotation of the unlocking piece;

A connecting rod, one end is pivotally arranged on the lower connecting plate of the recliner, and the other end is rotationally connected with the backward unlocking lever;

A rearward unlocking lever, one end of which is in transmission connection with the unlocking end, and the other end forms a rearward driving end and is rotationally connected with the connecting rod. The backward unlocking lever, the connecting rod, the unlocking plate and the The lower connecting plate of the recliner forms a reverse four-bar linkage mechanism, so that the unlocking rotation of the unlocking plate is formed due to the force applied to the rearward driving end towards the back of the backrest.

Further, a through hole arranged along the length direction of the forward unlocking lever is formed on the forward unlocking lever, a first hinge shaft is rotatably connected to the unlocking end, and the first hinge shaft slides through in the through hole.

Further, the backward unlocking lever is rotatably connected with the first hinge shaft.

Further, the forward unlocking lever is arranged on the lower connecting plate of the recliner through a second hinge shaft, and the connecting rod is connected in rotation with the second hinge shaft.

Further, the backward unlocking lever is rotatably connected with the connecting rod through a third hinge shaft.

Further, a forward unlocking drawstring and a rearward unlocking drawstring are respectively connected to the forward driving end and the rearward driving end.

Further, at least one of the forward unlocking strap and the rearward unlocking strap is configured to be exposed outside the backrest when the backrest is in a flat state.

Compared with the prior art, the utility model has the following advantages:

(1) The car seat unlocking mechanism described in the utility model can drive the unlocking sheet to unlock and rotate by applying force to the forward driving end and the rearward driving end, so as to realize the two-way unlocking of the recliner. At the same time, the unlocking mechanism is composed of The unlocking plate, the forward unlocking lever, the connecting rod forming the reverse four-bar linkage mechanism and the rear unlocking lever are composed of a simple structure, low processing and manufacturing costs, and can be easily integrated to facilitate assembly and have good practicality. sex.

(2) Through the cooperation of the through hole and the first hinge shaft, not only the transmission between the forward unlocking lever and the unlocking piece can be realized, but also the forward unlocking force can be reduced.

(3) The rear unlocking lever is directly connected with the first hinge shaft to simplify the structure.

(4) The forward unlocking lever and the connecting rod are jointly arranged on the lower connecting plate of the recliner via the second hinge shaft, which is beneficial to simplify the structure.

(5) Connecting the forward unlocking drawstring and the backward unlocking drawstring can facilitate the driving of the forward unlocking lever and the backward unlocking lever.

(6) In the flat state, the forward unlocking strap or the rearward unlocking strap is exposed outside the backrest, which can help to unlock the problem that the backrest is difficult to unlock when it is flat.

Another object of the present utility model is to provide a car seat, which includes a seat cushion with a seat assembly mounting bracket, and an adjusting seat connected to the seat assembly mounting bracket through the lower connecting plate of the recliner. The recliner, and the backrest connected to the recliner through the upper connecting plate of the recliner, also include the above-mentioned automobile seat back unlocking mechanism arranged on the lower connecting plate of the adjuster.

At the same time, the utility model also proposes an automobile, which includes a vehicle body, on which the above-mentioned vehicle seat is installed.

The automobile and the automobile seat described in the utility model can realize two-way unlocking of the recliner by adopting the above-mentioned automobile seat back unlocking mechanism, and the unlocking mechanism has a simple structure, low cost and good practicability.

Description of drawings

The accompanying drawings constituting a part of the utility model are used to provide a further understanding of the utility model, and the schematic embodiments of the utility model and their descriptions are used to explain the utility model, and do not constitute improper limitations to the utility model. In the attached picture:

Fig. 1 is a schematic layout diagram of the car seat back unlocking mechanism described in Embodiment 1 of the present invention;

Fig. 2 is a structural schematic diagram of the car seat back unlocking mechanism described in Embodiment 1 of the present invention;

Fig. 3 is a structural diagram of the car seat back unlocking structure described in Embodiment 1 of the present invention;

Fig. 4 is a schematic diagram of the state of the car seat back unlocking mechanism described in Embodiment 1 of the utility model under forward unlocking;

Fig. 5 is a schematic diagram of the state of the car seat back unlocking mechanism described in the embodiment of the present invention under the backward unlocking;

Fig. 6 is a schematic diagram of the application state of the car seat back unlocking mechanism described in the embodiment of the present invention;

Fig. 7 is a schematic diagram of the state after the backrest in Fig. 6 is folded and laid flat;

Explanation of reference signs:

1-seat assembly mounting bracket, 2-recliner lower connecting plate, 3-recliner, 4-backrest frame, 5-recliner upper connecting plate, 6-recliner unlocking central shaft, 7-unlock piece, 8-forward unlocking lever, 81-through hole, 9-second hinge shaft, 10-first hinge shaft, 11-connecting rod, 12-backward unlocking lever, 13-forward unlocking strap, 14- Rear unlocking pull belt, 15-third hinge shaft, 16-seat cushion, 17-backrest.

Detailed ways

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

The utility model will be described in detail below with reference to the accompanying drawings and in conjunction with the embodiments.

Embodiment one

This embodiment relates to a car seat back unlocking mechanism for unlocking the car seat recliner. The arrangement of the car seat back unlocking mechanism (hereinafter referred to as the unlocking mechanism) on the car seat is shown in Figure 1 , wherein the recliner 3 is installed on the lower connecting plate 2 of the recliner, the lower connecting plate 2 of the recliner is fixedly connected with the seat assembly mounting bracket 1 below, and the unlocking mechanism is arranged on the lower connecting plate 2 of the recliner Above, the backrest frame 4 is connected to the recliner 3 through the upper connecting plate 5 of the recliner. After the recliner 3 is unlocked by the unlocking mechanism, the angle adjustment of the backrest with the backrest frame 4 as the main body can be realized, or the The backrest folds down to a flat position.

The structure of the recliner 3 in this embodiment and the specific installation method of the recliner 3 in the car seat are the same as the recliner applied to the existing car seat, and will not be described in detail here. The structure of the unlocking mechanism of this embodiment is shown in Fig. 2 in conjunction with Fig. 3, which generally includes an unlocking piece 7, a forward unlocking lever 8, a connecting rod 11 and a rearward unlocking lever 12, specifically, one end of the unlocking piece 7 It is connected with the recliner unlocking center shaft 6 of the recliner 3 through transmission, and the other end of the unlocking piece 7 forms an unlocking end, which bears an external force, so that the unlocking piece 7 forms a When 6 rotates, it can drive the angle adjuster to unlock the central axis 6 to rotate, and then realize the unlocking of the angle adjuster 3.

In this embodiment, based on the direction shown in FIG. 2 , the unlocking direction of the recliner 3 is that the unlocking piece 7 rotates clockwise around the central axis 6 for unlocking the adjuster, which facilitates the application of external force when unlocking. In addition, the transmission connection between the unlocking piece 7 and the unlocking central shaft 6 of the recliner can be adopted to make the cross section of the end of the unlocking central shaft 6 of the recliner be square, triangular, other regular polygonal, or spline-shaped. At the same time, a through hole adapted to the cross-sectional shape of the end of the recliner unlocking central shaft 6 is provided at the end of the unlocking piece 7, so that the unlocking piece can be realized by inserting the recliner unlocking central shaft 6 into the through hole. 7 drive the central shaft 6 for unlocking the recliner.

Of course, in addition to adopting the above-mentioned insertion structure in this embodiment, one end of the unlocking piece 7 and the end of the unlocking central axis 6 of the recliner can also be fixedly connected together by welding or the like in this embodiment. In this embodiment, one end of the forward unlocking lever 8 is pivotally arranged on the lower connecting plate 2 of the recliner through the second hinge shaft 9 . The other end forms the forward driving end for receiving external force for unlocking operation. In addition, the forward unlocking lever 8 is also in transmission connection with the unlocking end on the unlocking piece 7, so that when the forward driving end of the forward unlocking lever 8 is pushed towards the front of the backrest, the unlocking piece 7 can be moved forward. Unlocking rotation in the previously described direction.

In this embodiment, the transmission connection between the forward unlocking lever 8 and the unlocking piece 7 is combined with that shown in FIG. The through hole 81, the through hole 81 can specifically be an oblong hole arranged on the forward unlocking lever 8, and a first hinge shaft 10 is also rotated at the unlocking end of the unlocking piece 7, and the first hinge shaft 10 slides through the through hole. In the hole 81, through the sliding fit between the first hinge shaft 10 and the through hole 81, the transmission between the forward unlocking lever 8 and the unlocking piece 7 is realized.

The unlocking mechanism of this embodiment further includes a connecting rod 11 with one end pivotally arranged on the lower connecting plate 2 of the recliner, and a backward unlocking lever 12 connected with the other end of the connecting rod 11 in rotation. Among them, in order to simplify the structure and facilitate the arrangement on the lower connecting plate 2 of the recliner, the connecting rod 11 is also connected by rotation with the second hinge shaft 9, so as to realize the pivot on the lower connecting plate 2 of the recliner. The rearward unlocking lever 12 is rotationally connected with the connecting rod 11 through the third hinge shaft 15, and the end of the backward unlocking lever 12 connected with the connecting rod 11 is also formed for receiving external force to perform the unlocking operation. to the drive end.

In addition, in this embodiment, relative to the end forming the rearward driving end, the other end of the rearward unlocking lever 12 is rotatably connected to the first hinge shaft 10, and at the same time, the length between the backward unlocking lever 12 and the connecting rod 11 is designed such that It also makes the backward unlocking lever 12, the connecting rod 11, the unlocking plate 7 and the lower connecting plate 2 of the recliner also constitute a reverse four-bar linkage mechanism. Through this reverse four-bar linkage mechanism, when the rearward driving end of the rearward unlocking lever 12 is subjected to an applied force towards the rear of the backrest, the unlocking rotation of the unlocking piece 7 in the direction described above can be realized, thereby making the adjustment Horn 3 unlocked.

In this embodiment, in order to facilitate the unlocking operation, the forward driving end of the forward unlocking lever 8 and the rearward driving end of the rearward unlocking lever 12 are respectively connected with a forward unlocking drawstring 13 and a rearward unlocking drawstring 14 The forward unlocking drawstring 13 can be hooked with the forward driving end, and the rearward unlocking drawstring 14 can be sleeved on the third hinge shaft 15, so that the third hinge shaft 15 can realize the connection with the rearward unlocking lever 12. The connection between the rearward drive ends. The overall composition of the unlocking mechanism of this embodiment is shown in Figure 3, at this time by the forward unlocking lever 8 connected with the forward unlocking drawstring 13, and the backward unlocking lever 12 connected with the backward unlocking drawstring 14 The reverse four-bar linkage mechanism constitutes a backrest unlocking mechanism capable of two-way unlocking.

The working process of the unlocking mechanism of this embodiment when unlocking is shown in Fig. 4 and Fig. 5 respectively. When unlocking from the front of the backrest, as shown in Fig. The unlocking strap 13 drives the forward unlocking lever 8 to rotate, and when the first hinge shaft 10 slides in the through hole 81, the forward unlocking lever 8 drives the unlocking piece 7 to rotate clockwise, thereby realizing the unlocking center of the recliner. The rotation of the shaft 6 completes the unlocking of the recliner 3 . After unlocking, the angle of the backrest 17 can be adjusted, and after the adjustment, the force applied to the forward unlocking drawstring 13 is removed, and the recliner 3 resets and locks.

When unlocking from the back of the backrest, specifically as shown in Figure 5, pull the belt behind the backrest to unlock the drawstring 14, and the backward unlocking drawstring 14 drives the connecting rod 11 and the backward unlocking pull rod 12 to start rotating counterclockwise synchronously. Utilize the movement principle of reverse four-bar linkage mechanism at this moment, can realize the reversing of unlocking plate 6 rotations, that is to say, unlocking plate 6 is transformed into clockwise rotation by connecting rod 11 and backward unlocking lever 12 counterclockwise rotation, and then The rotation of the central axis 6 for unlocking the recliner is realized, and the unlocking of the recliner 3 is completed. After unlocking, the angle of the backrest 17 can be adjusted, and after the adjustment, the force applied to the rear unlocking drawstring 14 is removed, and the recliner 3 resets and locks.

When the unlocking mechanism of this embodiment applies an unlocking force to one of the forward unlocking drawstring 13 or the rearward unlocking drawstring 14, through the transmission of the first hinge shaft 10, the forward unlocking drawstring 13 and the backward unlocking drawstring The other of 14 will also be linked accordingly.

In addition, the state when the unlocking mechanism of this embodiment is applied to the car seat assembly is shown in Figure 6. At this time, a seat cushion 16 is arranged on the seat assembly mounting bracket 1, and a A backrest 17 with a headrest is also installed, and after the unlocking mechanism is set, the forward unlocking drawstring 13 and the rearward unlocking drawstring 14 in it extend to the front and rear of the backrest 17 respectively, so as to be positioned at the front of the seat or The rear occupant performs the unlocking operation.

When the recliner 3 is unlocked so that the backrest 17 is folded and laid flat on the seat cushion 16, the state is shown in Figure 7. At this time, in this embodiment, the forward unlocking drawstring 13 and the rear The unlocking drawstrings 14 are all arranged to be exposed outside the backrest 17, so as to facilitate the unlocking operation, and avoid the problem that the backrest side wings block the unlocking handle in the existing backrest unlocking structure. Specifically, the exposed arrangement of the forward unlocking drawstring 13 can be realized by designing the forward unlocking drawstring 13 to extend obliquely upward after installation, and have an appropriate length. The exposed arrangement of the rearward unlocking drawstring 14 Relatively, it is relatively simple, and it only needs to have an appropriate length.

The car seat back unlocking mechanism of this embodiment can realize two-way unlocking of the recliner 3 at the front and rear of the backrest 17, and the unlocking mechanism adopts a connecting rod to form a structure, which also has a simple structure, low manufacturing cost, and is easy to carry out. Advantages of structural integration. In addition, in the unlocking mechanism of this embodiment, the purpose of reducing the unlocking operation force can also be achieved by adjusting the positions of the aforementioned hinge shafts. The unlocking operation is facilitated, and the disadvantages in the prior art are avoided.

Embodiment two

This embodiment relates to a car seat. The structure of the car seat can still be shown in FIG. 1 in combination with FIG. The recliner 3 connected to the seat assembly mounting bracket 1 by the board 2 and the backrest 17 connected to the recliner 3 through the connecting plate 5 on the recliner. In addition, the car seat also includes the car seat back unlocking mechanism as in the first embodiment, which is arranged on the lower connecting plate 2 of the adjuster.

At the same time, the present embodiment also relates to a car, which includes a body, on which the car seat as mentioned above is installed.

For the unlocking process when the car and the car seat in this embodiment are provided with the car seat back unlocking mechanism in the first embodiment, please refer to the description in the first embodiment. By adopting the car seat back unlocking mechanism in Embodiment 1, the car and the car seat of this embodiment can realize two-way unlocking of the recliner, and the unlocking mechanism has a simple structure, low cost, and good practicality. sex.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present utility model shall be included in the Within the protection scope of the present utility model.

Claims (9)

1. A kind of 1. motor vehicle seat back unlocking mechanism, it is characterised in that including：

   Locking plate (7) is solved, one end is connected with recliner unblock central shaft (6) transmission, and the other end forms solution lock end；

   Forward direction trip lever (8), one end pivot and are arranged on recliner lower connecting plate (2), and the other end forms forward end, and institute To trip lever (8) and the solution lock end drive connection before stating, with because to the forward end toward backrest (17) front Force, and form it is described solution locking plate (7) unblock rotate；

   Connecting rod (11), one end pivot and are arranged on the recliner lower connecting plate (2), and the other end rotates with backward trip lever (12) Connection；

   Backward trip lever (12), one end and the solution lock end drive connection, the other end formed backward drive end and with the connecting rod (11) it is rotatablely connected, is connected under the backward trip lever (12), the connecting rod (11), the solution locking plate (7) and the recliner Plate (2) forms reverse quadric chain, with because of the force toward backrest (17) rear to the drive end backward, and forms The unblock of the solution locking plate (7) rotates.
2. 2. motor vehicle seat back unlocking mechanism according to claim 1, it is characterised in that：In the forward direction trip lever (8) On formed with the through hole (81) arranged along forward direction trip lever (8) length direction, be rotatably connected to the in the solution lock end One jointed shaft (10), and first jointed shaft (10) is slided and is arranged in the through hole (81).
3. 3. motor vehicle seat back unlocking mechanism according to claim 2, it is characterised in that：The backward trip lever (12) with First jointed shaft (10) is rotatedly connected.
4. 4. motor vehicle seat back unlocking mechanism according to claim 1, it is characterised in that：The forward direction trip lever (8) is logical The second jointed shaft (9) is crossed on the recliner lower connecting plate (2), the connecting rod (11) turns with second jointed shaft (9) It is dynamic to be connected.
5. 5. motor vehicle seat back unlocking mechanism according to claim 1, it is characterised in that：The backward trip lever (12) is logical The 3rd jointed shaft (15) is crossed to be rotatedly connected with the connecting rod (11).
6. 6. motor vehicle seat back unlocking mechanism according to any one of claim 1 to 5, it is characterised in that：Before described To unblock drawstring (13) and backward unblock drawstring (14) before being connected to drive end and the backward drive end.
7. 7. motor vehicle seat back unlocking mechanism according to claim 6, it is characterised in that：The forward direction unblock drawstring (13) With at least one the backward unblock drawstring (14) be configured to flattened state in the backrest (17) and in the backrest (17) exposed arrangement outside.
8. 8. a kind of automotive seat, including the seat cushion (16) with seat assembly mounting bracket (1), by being connected under recliner The recliner (3) that plate (2) is connected with the seat assembly mounting bracket (1), and pass through recliner upper junction plate (5) and institute State the backrest (17) that recliner (3) is connected, it is characterised in that：Also include being arranged on the adjuster lower connecting plate (2) Motor vehicle seat back unlocking mechanism as any one of claim 1 to 7.
9. 9. a kind of automobile, including vehicle body, it is characterised in that：In being equiped with automotive seats as claimed in claim 8 on the vehicle body Chair.