CN202294371U - Automobile seat cushion turnover mechanism - Google Patents

Abstract

The utility model discloses an automobile seat cushion folding mechanism, which comprises a floor bracket connected with the floor for supporting the cushion, a cushion support fitted and connected with the bottom of the cushion, a short connecting rod located inside the cushion, and a short connecting rod located outside the cushion. The long connecting rod, the short connecting rod, the floor support and the cushion support are pivotally hinged to the first pivot pin and the second pivot pin, the long link, the floor support and the cushion support are pivotally hinged to the third pivot pin and the fourth pivot pin, The folding mechanism is provided with a locking handle for seat cushion positioning. The design of the long connecting rod and the short connecting rod of the utility model makes the seat cushion turn over after it is raised, and ingeniously increases the space between the seat and the front row to facilitate the rotation and parking of wheelchairs for the disabled; the locking handle is The seat cushion in the vertical state is positioned, the design is ingenious, and the operation is convenient; the overall design of the folding mechanism is simple, the structure is firm, and the maintenance cost is low.

Description

A car seat cushion folding mechanism

technical field

The utility model relates to an automobile seat installation part, in particular to a folding mechanism of an automobile seat cushion.

Background technique

In order to increase the space of the passenger compartment, the automobiles on the market often adopt the foldable mode of the passenger compartment seat, and the back of the seat is turned over to increase the usable space above the seat. However, some models used for public services need to place some items that require a large landing area, especially wheelchairs for the disabled. This requires increasing the space between the front and rear seats of the passenger compartment so that the wheelchair can move freely in the passenger compartment. Rotating placement, currently in order to achieve this requirement, only the seat cushion part with a large area of the seat needs to be removed. Great workaround.

Chinese Patent Publication No.: CN101327753A, published on December 24, 2008, discloses a seat turning mechanism, comprising a seat rear support rod, two connecting rods, two seat front support feet, a lock hook and a lock , the two ends of the rear support rod are locked on the lock hook through the lock, and the rear support rod is connected with the front support leg of the seat through two connecting rods. The front support leg of the seat is equipped with a coil spring. When the lock and the lock hook are separated , the seat as a whole is folded forward under the force of the coil spring, and the rear support rod of the seat is also automatically retracted inward under the action of the connecting rod. The disadvantage is that this solution cannot be applied to a large number of seats without front support legs; the spring force of the coil spring is easily fatigued and damaged due to long-term action, which increases the maintenance cost in the later period; the design of the four-bar linkage is complicated and difficult to realize.

Contents of the invention

The utility model aims to overcome the deficiencies of the seat cushion folding mechanism in the prior art, such as complex design, high maintenance cost and narrow application range, and provides an automobile seat cushion folding mechanism with simple design, basically no maintenance and wide application range.

In order to achieve the above object, the utility model adopts the following technical solutions:

A car seat cushion folding mechanism, comprising a floor support connected to the floor for supporting the cushion and a cushion support attached to the bottom of the seat cushion, the folding mechanism also includes a short connecting rod located on the inner side of the seat cushion and a short connecting rod located on the outer side of the seat cushion The long connecting rod, the short connecting rod, the floor support and the cushion support are pivotally hinged to the first pivot pin and the second pivot pin, and the long link, the floor support and the cushion support are pivotally hinged to the third pivot pin and the fourth pivot pin , the sum of the distances between the fourth pivot pin, the second pivot pin, and the third pivot pin is equal to the sum of the distances between the first pivot pin, the second pivot pin, and the third pivot pin, and the folding mechanism is provided with Locking handle positioned on the seat cushion. When the long and short connecting rods connecting the inside and outside of the seat cushion are horizontal, the seat cushion support and the floor support are horizontally attached, and the seat cushion is kept level and the ride is comfortable; The inside is low and the outside is high, and the seat cushion is inclined to the inside. When the short connecting rod is turned to be in the same straight line with the cushion angle steel, the short connecting rod forms a triangle with the cushion angle steel, long connecting rod, and floor angle steel, and the long connecting rod stops rotating. , continue to pull the locking handle to the outside of the cushion, the short connecting rod continues to rotate to the outside of the cushion, the angle steel of the cushion rotates to the outside of the cushion equally around the fourth pivot pin, and the cushion is straightened. The ingenious design allows the seat cushion to be folded upright, freeing up space between the seat and the front row, which is convenient for storing items with a large landing area, especially for the rotating parking of wheelchairs for the disabled.

Preferably, the inner end of the locking handle is hinged with the second pivot pin, and the middle part of the locking handle is provided with a groove for connecting the third pivot pin, and when the cushion support is perpendicular to the floor support, the locking The groove of the handle can be embedded in the third pivot pin. The third pivot pin is located at the pivot joint between the long connecting rod and the floor support, and the floor support is fixedly connected to the floor, so the position of the third pivot pin is also fixed. When the groove of the locking handle is connected to the third pivot pin, the lock Stop handle is positioned, so the second pivot pin hinged with the lock handle is also positioned, so when pulling the lock handle to make the cushion support vertical, the cushion support is also positioned, and the seat cushion remains vertical. This kind of mechanism is ingeniously designed, and the seat cushion can be changed horizontally or vertically by pulling the locking handle. It has a simple structure, is easy to operate, is not easy to damage, and basically does not require subsequent maintenance.

Preferably, the groove is U-shaped. The U-shaped bottom of the groove faces the outside of the cushion. The U-shaped groove is convenient for socketing the third shaft pin, and the bottom is turned outward. When the groove mouth of the locking handle is socketed with the third shaft pin, the locking handle is pressed down due to the gravity of the seat cushion and the pressure of the hand, and the third The pivot pin will automatically slide to the U-shaped bottom of the groove, which is convenient and labor-saving to operate; the inclined groove prevents the third pivot pin from falling out of the groove when the vehicle bumps and vibrates, making the connection more reliable.

Preferably, the floor support is a pair of floor angle steels connected to the floor and used to support the cushion from both sides. The vertical part of the floor angle steel is pivoted and hinged, and the cushion bracket is a pair of cushion angle steel connected to the bottom and side of the cushion. Straight pivot hinge. Angle steel is used as the cushion support and floor support, the structure is firm and the fixing is convenient. The vertical part of the floor angle steel and the vertical part of the cushion angle steel are parallel to each other, keeping a distance, leaving space for the short connecting rod, long connecting rod and locking handle, and the setting is more reasonable.

Preferably, the locking handle is arranged on the left or right side of the seat cushion. The locking handle is only set on one side of the seat cushion, and there is no handle on the other side, which has the same positioning effect and can save costs; at the same time, it is suitable for bench seats with multiple cushions, and the locking handle is set on both sides of the bench seat, It takes up less space and is easier to operate.

Preferably, the outer end of the locking handle is provided with an anti-slip sleeve. In order to have a firm structure, the locking handle is often made of metal materials, and an anti-slip sleeve is provided to prevent hand slipping during operation, and it also has the effect of beautifying the interior space of the car.

Therefore, the utility model has the following beneficial effects: (1) The design of the long connecting rod and the short connecting rod makes the seat cushion tilted after being raised, and folded to the inside of the seat cushion, which ingeniously increases the space between the seat and the front row , to facilitate the storage of items with a large landing area, especially for the rotation and parking of wheelchairs for the disabled; (2) The locking handle positions the seat cushion in the vertical state, which is simple in structure, easy to operate, not easy to damage, and basically requires no later maintenance; (3) ) The overall design of the folding mechanism is simple, the structure is firm, and the operation is convenient.

Description of drawings

Fig. 1 is a kind of structural representation of the folded locking state of the utility model;

Fig. 2 is a structural schematic diagram of the folded unlocked state of the utility model;

Fig. 3 is a kind of structural representation of the horizontal state of the utility model;

Fig. 4 is a schematic structural view of the left side of the cushion of the utility model;

Fig. 5 is a structural schematic diagram of the right side of the seat cushion of the present invention.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment, the utility model is further described.

In the embodiment shown in Figures 1 and 2, a car seat cushion folding mechanism includes a floor angle steel 1 connected to the floor for supporting the cushion and a cushion angle steel 2 connected to the bottom of the cushion, and the floor angle steel is vertical Part 11 faces upwards, and the vertical portion 21 of the cushion angle steel is attached to the side of the cushion, and the included angle of the floor angle steel 1 and the included angle of the cushion angle steel 2 are in the same direction. Described folding mechanism also comprises the short connecting rod 3 that is positioned at the inside of cushion and the long connecting rod 4 that is positioned at the outside of cushion, and short connecting rod 3 and floor angle steel vertical part 11 and cushion angle steel vertical part 21 are pivotally hinged on the first Pivot pin 5 and the second pivot pin 6, long connecting rod 4 and floor angle steel vertical part 11 and cushion angle steel vertical part 21 are pivotally hinged on the third pivot pin 7 and the fourth pivot pin 8, the fourth pivot pin 8 and The sum of the distances between the second pivot pin 6 and the third pivot pin 7 is equal to the sum of the distances between the first pivot pin 5 and the second pivot pin 6 and the third pivot pin 7. The locking handle 9 of seat cushion location. The inner end of the locking handle 9 is pivotally hinged with the second pivot pin 6, and the middle part of the locking handle 9 is provided with a groove 91 for connecting the third pivot pin 7, and when the cushion support is perpendicular to the floor support, the The groove 91 of the locking handle 9 can be inserted into the third shaft pin 7 . The groove 91 is U-shaped. The U-shaped bottom of the groove 91 faces the outside of the cushion.

The floor angle steel 1 is two matching sets that connect the floor and are used to support the cushion from both sides. Described cushion angle steel 2 is two sets of pairings that are located at both sides of the cushion. As shown in Figure 4 and Figure 5, the locking handle is located on the left side of the seat cushion. The inner end of the locking handle 9 is pivotally connected with the second pivot pin 6 on the cushion angle steel vertical part 21 of the left side. The locking handle 9 is arranged on the left side of the seat cushion, and the groove 91 of the locking handle 9 is pivotally connected with the third shaft pin 7 on the vertical part of the floor angle steel 1 on the left side, and no locking is provided on the right side of the seat cushion. handle9. The outer end of the locking handle 9 is provided with an anti-slip sleeve 92 .

As shown in Figure 2 and Figure 3, the groove 91 of the locking handle 9 is in a disengaged state from the third pivot pin 7, and the locking handle 9 and the seat cushion are pushed to the inner side of the seat cushion, and the long connecting rod 4 surrounds the third pivot pin 7, The short connecting rod 3 rotates to the inside of the cushion around the first pivot pin 5, and when turning to the level, the cushion angle steel 2 is just in a horizontal state, and the cushion is level, and the occupant can sit comfortably on the cushion. The groove 91 of the locking handle 9 is still in a disengaged state from the second shaft pin 6 .

As shown in Figure 2, when the cushion needs to be turned over, the locking handle 9 is pulled to the outside of the cushion, the long connecting rod 4 rotates around the third pivot pin 7, and the short connecting rod 3 revolves around the first pivot pin 5 to the outside of the cushion at the same time, because The long connecting rod 4 located on the outside of the cushion is longer than the short connecting rod 3 located on the inside of the cushion, the outside of the cushion is higher than the inside of the cushion, and the cushion is inclined to the inside. The connecting rod 3 forms a triangle with the cushion angle steel 2, the long connecting rod 4, and the floor angle steel 1, and the long connecting rod 4 stops rotating. Rotate to the outside of the cushion, the angle steel 2 of the cushion is rotated to the outside of the cushion equally around the fourth pivot pin 8, and the cushion is straightened. Then align the groove 91 of the locking handle 9 with the third shaft pin 7, press down the locking handle 9, the third shaft pin 7 enters the U-shaped bottom of the groove 91, the locking handle 9 is locked, and the second shaft pin 6 positions are just positioned, and locking handle 9, long connecting rod 4, cushion angle steel 2 form a firm triangle again, and cushion is vertically motionless.

When the locking handle 9 pushed or pulled the second pin 6 on the left side of the cushion, the short connecting rod 3 and the long connecting rod 4 on the right side of the cushion also rotated with the short connecting rod 3 and the long connecting rod 4 on the left side of the cushion, Complete the folding of the cushion together, and support the cushion when the cushion is vertical.

Claims (7)

1. automobile cushion turnover mechanism; Comprise with the floor bonded assembly and be used to support the floor stand of cushion and the cushion bracket that is fitted and connected with the cushion bottom; It is characterized in that: said turnover mechanism also comprises the long connecting rod (4) that is positioned at the inboard short connecting rod (3) of cushion and is positioned at the cushion outside; Short connecting rod (3) is connected to first pivot pin (5) and second pivot pin (6) with floor stand and cushion bracket pivot-hinge; Long connecting rod (4) is connected to third axle pin (7) and the 4th pivot pin (8) with floor stand and cushion bracket pivot-hinge; Between the 4th pivot pin (8) and second pivot pin (6), the third axle pin (7) apart from sum equal between first pivot pin (5) and second pivot pin (6), the third axle pin (7) apart from sum, said turnover mechanism is provided with the locking handle (9) that is used for the cushion location.

2. a kind of automobile cushion turnover mechanism according to claim 1; It is characterized in that: the inner of said locking handle (9) and second pivot pin (6) pivot hinged; The middle part of locking handle (9) is provided with the groove (91) that is used to connect third axle pin (7), and can embed in the third axle pin (7) when the groove (91) of cushion bracket said locking handle (9) during perpendicular to floor stand.

3. a kind of automobile cushion turnover mechanism according to claim 2 is characterized in that: said groove (91) takes the shape of the letter U.

4. a kind of automobile cushion turnover mechanism according to claim 3 is characterized in that: said groove (91) U-shaped bottom is towards the cushion outside.

5. according to claim 1 or 2 or 3 or 4 described a kind of automobile cushion turnover mechanisms; It is characterized in that: said floor stand is a pair of connection floor and is used for the floor angle steel (1) from the supported on both sides cushion; The vertical portion of floor angle steel (11) up; Short connecting rod (3) and long connecting rod (4) pivot hinged through first pivot pin (5) and third axle pin (7) with the vertical portion of floor angle steel (11); Said cushion bracket is a pair of cushion angle steel (2) that is fitted and connected with cushion bottom and sidepiece, and short connecting rod (3) and long connecting rod (4) pivot hinged through second pivot pin (6) and the 4th pivot pin (8) with the vertical portion of cushion angle steel (21).

6. a kind of automobile cushion turnover mechanism according to claim 5 is characterized in that: said locking handle is located at cushion left side or right side.

7. a kind of automobile cushion turnover mechanism according to claim 2 is characterized in that: the outer end of said locking handle (9) is provided with anti-sliding sleeve (92).

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