A swivel seat mechanism

Abstract

The present application relates to a kind of rotary seat mechanism, slide rail mechanism is fixedly connected on vehicle body, connecting frame is connected between slide rail mechanism and rotary disc, support frame is fixedly connected between rotary disc and seat skeleton, slide rail mechanism and rotary disc are hinged by three hinge points formed by connecting rod, first connecting support and second connecting support, slide rail mechanism and rotary disc are directly hinged by fourth hinge point, two ends of connecting rod are respectively hinged to slide rail mechanism and rotary disc, first connecting support has the first curve slot for the sliding of the hinge element forming second hinge point, second connecting support has the second curve slot for the sliding of the hinge element forming third hinge point, rotary seat mechanism further includes main safety belt support fixedly connected on slide rail mechanism, rotary disc has inward recessed portion for avoiding main safety belt support.According to the rotary seat mechanism of the present application, the main safety belt support is installed on the slide rail mechanism, which avoids the strength requirement for the rotary disc and greatly reduces the design difficulty of the rotary seat mechanism.

Description

TECHNICAL FIELD

[0001] The present application relates to an automobile seat, and more particularly to a swivel seat mechanism. BACKGROUND

[0002] Nowadays, more and more automobile seats have a swivel welcome function. In order to realize the swivel function, the automobile seat is usually equipped with a swivel seat mechanism, which has a main safety belt bracket, i.e. SBA bracket, for mounting a main safety belt on a swivel disc. Although the slide rail mechanism of the swivel seat mechanism has higher strength and is more suitable for mounting the main safety belt bracket, the direct connection of the main safety belt bracket on the slide rail mechanism will interfere with the rotation of the swivel disc because the slide rail mechanism is located below the swivel disc. Therefore, the main safety belt bracket in the prior art is mounted on the swivel disc due to the inability to avoid. Similarly, the secondary safety belt bracket, i.e. PLP bracket, is also mounted on the swivel disc. Obviously, the main safety belt bracket and the secondary safety belt bracket will cause the swivel disc to require greater strength, making the design of the swivel seat mechanism more difficult. SUMMARY

[0003] In order to solve the problem of greater difficulty in the design of the swivel seat mechanism in the prior art, the present application provides a swivel seat mechanism.

[0004] The swivel seat mechanism according to the present application comprises a slide rail mechanism, a connecting frame, a swivel disc and a support frame, wherein the slide rail mechanism is fixedly connected to a vehicle body, the connecting frame is connected between the slide rail mechanism and the swivel disc to make the swivel disc rotatable relative to the slide rail mechanism, and the support frame is fixedly connected between the swivel disc and a seat skeleton to realize the rotation of the seat through the swivel disc. The connecting frame comprises a connecting rod, a first connecting bracket (corresponding to the left rear connecting bracket in the embodiment) and a second connecting bracket (corresponding to the right front connecting bracket in the embodiment). The slide rail mechanism is hinged with the swivel disc through a first hinge point formed by the connecting rod, hinged with the swivel disc through a second hinge point formed by the first connecting bracket, hinged with the swivel disc through a third hinge point formed by the second connecting bracket, and directly hinged with the swivel disc through a fourth hinge point. The two ends of the connecting rod are hinged to the slide rail mechanism and the swivel disc, respectively. The first connecting bracket has a first curved slot for the sliding of a hinge member forming the second hinge point. The second connecting bracket has a second curved slot for the sliding of a hinge member forming the third hinge point. The swivel seat mechanism further comprises a main safety belt bracket fixedly connected to the slide rail mechanism. The swivel disc has an inwardly recessed portion for avoiding the main safety belt bracket.

[0005] Preferably, the first connecting bracket is connected with a secondary safety belt bracket. It should be understood that the secondary safety belt bracket is connected to the first connecting bracket in the form of bolts or welding.

[0006] Preferably, a secondary seat belt mounting point is integrated on the first connecting bracket. In this preferred embodiment, the secondary seat belt mounting point which assumes the function of a secondary seat belt bracket is integrally formed on the first connecting bracket.

[0007] Preferably, the secondary seat belt mounting point on the first connecting bracket is laterally extended to avoid the swivel plate.

[0008] Preferably, the slide rail mechanism is fixedly connected to the vehicle body through a mounting foot. It should be understood that, in appropriate cases where the vehicle body is open, the mounting foot can be omitted, and the slide rail mechanism is directly fixed to the vehicle body through the lower rail.

[0009] Preferably, the slide rail mechanism comprises a first slide rail (corresponding to the left slide rail in the embodiment), a second slide rail (corresponding to the right slide rail in the embodiment), a first mounting strip (corresponding to the left mounting strip in the embodiment), a second mounting strip (corresponding to the right mounting strip in the embodiment), and a driving mechanism, wherein the first slide rail and the second slide rail are arranged apart from each other, the first mounting strip is mounted on the first slide rail, the second mounting strip is mounted on the second slide rail, and the driving mechanism is mounted between the first slide rail and the second slide rail through the first mounting strip and the second mounting strip to drive the first slide rail and the second slide rail.

[0010] Preferably, the driving mechanism is arranged between the middle positions of the first slide rail and the second slide rail.

[0011] Preferably, the driving mechanism comprises a first motor (corresponding to the left motor in the embodiment), a second motor (corresponding to the right motor in the embodiment), a first motor bracket (corresponding to the left motor bracket in the embodiment), a second motor bracket (corresponding to the right motor bracket in the embodiment), a first gear box (corresponding to the left gear box in the embodiment), and a second gear box (corresponding to the right gear box in the embodiment), wherein the first motor is mounted on the first mounting strip through the first motor bracket and connected with the first slide rail through the first gear box, and the second motor is mounted on the second mounting strip through the second motor bracket and connected with the second slide rail through the second gear box.

[0012] Preferably, the first mounting strip has a first boss (corresponding to the left boss in the embodiment), and the first motor bracket is mounted on the first boss, and the second mounting strip has a second boss (corresponding to the right boss in the embodiment), and the second motor bracket is mounted on the second boss.

[0013] Preferably, the first motor is connected with the first slide rail through a first flexible shaft (corresponding to the left flexible shaft in the embodiment) and a first flexible shaft sleeve (corresponding to the left flexible shaft sleeve in the embodiment), the first motor support has a first bending buckle (corresponding to the left bending buckle in the embodiment) in the middle, and the first flexible shaft and the first flexible shaft sleeve are limited by the first bending buckle; the second motor is connected with the second slide rail through a second flexible shaft (corresponding to the right flexible shaft in the embodiment) and a second flexible shaft sleeve (corresponding to the right flexible shaft sleeve in the embodiment), the second motor support has a second bending buckle (corresponding to the right bending buckle in the embodiment) in the middle, and the second flexible shaft and the second flexible shaft sleeve are limited by the second bending buckle.

[0014] Preferably, a first soft pad (corresponding to the left soft pad in the embodiment) is arranged between the first motor and the first motor support, and a second soft pad (corresponding to the right soft pad in the embodiment) is arranged between the second motor and the second motor support.

[0015] Preferably, the first motor support has a recessed part for avoiding the connecting rod.

[0016] According to the rotary seat mechanism of the present application, the main safety belt support is mounted on the slide rail mechanism, thereby avoiding the strength requirement for the rotating disc and greatly reducing the design difficulty of the rotary seat mechanism. In addition, according to the rotary seat mechanism of the present application, the secondary safety belt mounting point providing the related function of the secondary safety belt support in the prior art is connected on the first connecting support, and since the first connecting support is mounted on the slide rail mechanism, the strength requirement for the rotating disc is avoided, and the design difficulty of the rotary seat mechanism is greatly reduced. In addition, according to the rotary seat mechanism of the present application, the GM certification requirement is met through the middle-mounted electric slide rail, the sound quality of the rotary seat mechanism is improved through the soft pad, the skeleton universality is improved through the support frame, and the vehicle body universality is improved through the slide rail mounting foot. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 is a schematic diagram of the overall structure of the rotary seat mechanism according to a preferred embodiment of the present application;

[0018] Figure 2 is a partial exploded view of Figure 1 ;

[0019] Figure 3 is a schematic diagram of the slide rail mechanism of Figure 1 ;

[0020] Figure 4 shows the rotation process of the rotating disc of Figure 1 ;

[0021] Figure 5 shows the avoidance of the connecting rod by the left motor support of the slide rail mechanism of Figure 1 ;

[0022] Figure 6 The adjustment of the left front and rear support bracket when the seat framework is changed is shown;

[0023] Figure 7 The adjustment of the front and rear mounting legs when the vehicle body is changed is shown. DETAILED DESCRIPTION

[0024] The preferred embodiments of the present application are described below in conjunction with the accompanying drawings.

[0025] As Figure 1 shown, the rotary seat mechanism according to one preferred embodiment of the present application comprises a slide rail mechanism 1, a connecting frame 2, a rotating disc 3 and a support frame 4, wherein the slide rail mechanism 1 is fixedly connected to a vehicle body (not shown in the figure), the connecting frame 2 is connected between the slide rail mechanism 1 and the rotating disc 3 to enable the rotating disc 3 to rotate relative to the slide rail mechanism 1, and the support frame 4 is fixedly connected between the rotating disc 3 and a seat framework (not shown in the figure) to realize the rotation of the seat through the rotating disc 3. In this embodiment, the lower rail of the slide rail mechanism 1 is fixedly connected to the vehicle body (not shown in the figure) through a left front mounting leg 111 and a left rear mounting leg 112.

[0026] As Figure 2 shown, the slide rail mechanism 1 comprises a left slide rail 11, a right slide rail 12, a left mounting strip 13, a right mounting strip 14 and a driving mechanism 15, wherein the left slide rail 11 and the right slide rail 12 are arranged apart from each other, the left mounting strip 13 is mounted on the left slide rail 11, the right mounting strip 14 is mounted on the right slide rail 12, and the driving mechanism 15 is mounted between the left slide rail 11 and the right slide rail 12 through the left mounting strip 13 and the right mounting strip 14 to drive the left slide rail 11 and the right slide rail 12. In particular, the driving mechanism 15 of the present application is arranged between the middle positions of the left slide rail 11 and the right slide rail 12, whereby the slide rail mechanism is also referred to as a middle-mounted electric slide rail, thereby avoiding the problems in the prior art that the driving mechanism is arranged at the front end of the slide rail, thereby affecting the foot space of the passengers and generating a large noise, while at the same time satisfying the specified interface requirements of some mainstream vehicle manufacturers.

[0027] As Figure 2 and Figure 3As shown, the driving mechanism 15 comprises a left motor 151, a right motor 152, a left motor bracket 153, a right motor bracket 154, a left gear box 155 and a right gear box 156, wherein the left motor 151 is installed on the left mounting strip 13 through the left motor bracket 153 and connected with the left slide rail 11 through the left gear box 155, and the right motor 152 is installed on the right mounting strip 14 through the right motor bracket 154 and connected with the right slide rail 12 through the right gear box 156. In particular, the middle part of the left mounting strip 13 has a left boss 131, and the left motor bracket 153 is installed on the left boss 131 through two bolts, and the height of the left boss 131 can ensure that the left motor 151 is centered with the left gear box 155; similarly, the middle part of the right mounting strip 14 has a right boss 141, and the right motor bracket 154 is installed on the right boss 141 through two bolts, and the height of the right boss 141 can ensure that the right motor 152 is centered with the right gear box 156. In addition, the left motor 151 is connected with the left slide rail 11 through a left flexible shaft and a left flexible shaft sleeve, and the middle part of the left motor bracket 153 has a left bending buckle 1531, and the left flexible shaft and the left flexible shaft sleeve are limited by the left bending buckle 1531; similarly, the right motor 152 is connected with the right slide rail 12 through a right flexible shaft and a right flexible shaft sleeve, and the middle part of the right motor bracket 154 has a right bending buckle, and the right flexible shaft and the right flexible shaft sleeve are limited by the right bending buckle. Further, a left soft pad 157 is arranged between the left motor 151 and the left motor bracket 153, and a right soft pad 158 is arranged between the right motor 152 and the right motor bracket 154, so as to reduce the noise that may be generated by the soft pad structure.

[0028] As shown in Figure 2 The connecting frame 2 comprises a connecting rod 21, a left rear connecting bracket 22 and a right front connecting bracket 23, wherein the two ends of the connecting rod 21 are respectively hinged to the front end of the left mounting strip 13 of the slide rail mechanism 1 and the left front side of the rotating disc 3 (first hinged point), the left rear connecting bracket 22 is fixedly connected to the rear end of the left mounting strip 13 of the slide rail mechanism 1 and hinged to the left rear side of the rotating disc 3 (second hinged point), the right front connecting bracket 23 is fixedly connected to the front end of the right mounting strip 14 of the slide rail mechanism 1 and hinged to the right front side of the rotating disc 3 (third hinged point), and in addition, the rotating disc 3 is directly hinged to the rear end of the right mounting strip 14 of the slide rail mechanism 1 (fourth hinged point), so as to realize the stable rotation of the rotating disc 3 through the four hinged points, as shown in Figure 4As shown in the figure, in the initial state, the left slide rail 11 and the right slide rail 12 are flush; in the rotating state, the left motor 151 drives the upper rail of the left slide rail 11 to move backward relative to the lower rail, and the right motor 152 drives the upper rail of the right slide rail 12 to move forward relative to the lower rail, thereby generating reverse motion, causing the rotating disc 3 to rotate based on the four articulation points. In particular, the rotating seat mechanism of the present application achieves the rotation of the rotating disc by driving the movement of the slide rails 11, 12 by the motors 151, 152, and achieves the locking by the gearboxes 155, 156, which is simpler in structure and more reliable in locking than the prior art which requires additional gear racks to achieve rotation and locking. In this embodiment, each articulation point is realized by an articulation piece composed of a stepped bolt, a stepped bushing and a flat bushing. Among them, the left rear connecting bracket 22 and the right front connecting bracket 23 both have a curved slot for the articulation piece to slide.

[0029] As shown in the figure, Figure 1 , Figure 2 and Figure 4 , the rotating seat mechanism further comprises a main safety belt bracket 5 fixedly connected to the rear end of the right mounting strip 14 of the slide rail mechanism 1. It should be understood that the rotation of the rotating disc 3 is formed by the connecting rod 21 provided by the connecting rod mechanism, and the connecting frame 2 and the support frame 4 provide auxiliary support, which is a prerequisite for the main safety belt bracket 5 to be installed on the upper rail of the slide rail mechanism 1. That is, the connecting rod mechanism composed of the connecting rod 21 and the rotating disc 3 can make the rotating disc 3 have a hollow design, thereby providing a space for the main safety belt, so that the main safety belt connected to the main safety belt bracket 5 does not affect the rotation of the rotating disc. The main safety belt bracket in the prior art is installed on the rotating disc, thereby causing the rotating disc to require greater strength, and the main safety belt bracket 5 of the present application is installed on the upper rail of the slide rail mechanism 1, thereby avoiding the strength requirement for the rotating disc 3, greatly reducing the design difficulty of the rotating seat mechanism.

[0030] In this embodiment, the left rear connecting bracket 22 is integrated with a secondary safety belt mounting point 221, thereby providing the related functions of the secondary safety belt bracket in the prior art. The secondary safety belt bracket in the prior art is installed on the rotating disc due to the inability to avoid, thereby causing the rotating disc to require greater strength, and the left rear connecting bracket 22 integrated with the secondary safety belt mounting point 221 is installed on the upper rail of the slide rail mechanism 1 by the connecting rod mechanism of the connecting frame 2 in the present application, thereby avoiding the strength requirement for the rotating disc 3, greatly reducing the design difficulty of the rotating seat mechanism.

[0031] As shown in the figure, Figure 4 , during the rotation of the rotating disc 3, the connecting rod 21 rotates clockwise, and in order to avoid the connecting rod 21, the middle part of the left motor bracket 153 is recessed downward, as shown in the figure Figure 5As shown in the figure. In this embodiment, the length of the left motor bracket 153 is greater than the length of the right motor bracket 154, and the above-mentioned recess space is provided to avoid the connecting rod 21. In addition, during the rotation of the turntable 3, in order to avoid the main safety belt bracket 5 of the connecting frame 2, the right rear corner part of the turntable 3 is recessed inward. Moreover, during the rotation of the turntable 3, in order to avoid the turntable 3, the left rear connecting bracket 22 of the connecting frame 2 is laterally protruded from the side of the auxiliary safety belt mounting point 221.

[0032] As shown in the figure Figure 2 and Figure 4 The support frame 4 includes a left front support bracket 41, a left rear support bracket 42, a right front support bracket 43, and a right rear support bracket 44. The bottom of the seat is fixedly connected to the turntable 3 through the left front support bracket 41, the left rear support bracket 42, the right front support bracket 43, and the right rear support bracket 44.

[0033] As shown in the figure Figure 6 When the seat skeleton opening is changed, the positions and connecting points of the left front support bracket 41 and the left rear support bracket 42 can be adjusted adaptively. The connecting point 411 on the right side of the left front support bracket 41 is adjusted to the connecting point 411' on the left side of the left front support bracket 41', and the connecting point 421 on the right side of the left rear support bracket 42 is adjusted to the connecting point 421' on the left side of the left rear support bracket 42'. The seat skeleton opening requirement of a larger span is adapted, so that different skeleton platforms can be compatible.

[0034] As shown in the figure Figure 7 When the vehicle body opening is changed, the positions and widths of the left front mounting foot 111 and the left rear mounting foot 112 on the left slide rail 11 can be adjusted adaptively. The width of the left front mounting foot 111 is increased to form the left front mounting foot 111', and the width of the left rear mounting foot 112 is increased to form the left front mounting foot 112'. The vehicle body opening requirement of a larger span is adapted, so that different vehicle body platforms can be compatible.

[0035] The above-mentioned is only a preferred embodiment of the present application, not to limit the scope of the present application, and the above-mentioned embodiment of the present application can be variously changed. That is, any simple, equivalent change and modification made according to the content of the claims and the description of the present application fall within the scope of protection of the present application. The present application is not described in detail, which is a conventional technical content.

Claims

1. A swivel seat mechanism comprising a slide rail mechanism, a connecting frame, a turntable, and a support frame, wherein, The slide rail mechanism is fixedly connected to the vehicle body, the connecting frame is connected between the slide rail mechanism and the rotating disc to enable the rotating disc to rotate relative to the slide rail mechanism, and the support frame is fixedly connected between the rotating disc and the seat framework to realize rotation of the seat through the rotating disc, characterized in that the slide rail mechanism comprises a first slide rail, a second slide rail, a first mounting strip, a second mounting strip and a driving mechanism, wherein the first slide rail and the second slide rail are arranged at a distance from each other, the first mounting strip is mounted on the first slide rail, the second mounting strip is mounted on the second slide rail, and the driving mechanism is arranged between the middle positions of the first slide rail and the second slide rail and comprises a first motor, a second motor, a first motor support, a second motor support, a first gear box and a second gear box, wherein the first motor is mounted on the first mounting strip through the first motor support and connected with the first slide rail through the first gear box to drive the first slide rail, the second motor is mounted on the second mounting strip through the second motor support and connected with the second slide rail through the second gear box to drive the second slide rail, the connecting frame comprises a connecting rod, a first connecting support and a second connecting support, wherein the slide rail mechanism is hinged with the rotating disc through a first hinge point formed by the connecting rod, the slide rail mechanism is hinged with the rotating disc through a second hinge point formed by the first connecting support, the first motor support has a recessed portion for avoiding the connecting rod so that the length of the first motor support is greater than the length of the second motor support, the slide rail mechanism is hinged with the rotating disc through a third hinge point formed by the second connecting support, the slide rail mechanism is directly hinged with the rotating disc through a fourth hinge point, to realize smooth rotation of the rotating disc through the four hinge points, the two ends of the connecting rod are respectively hinged to the left front end of the slide rail mechanism and the left front side of the rotating disc, the first connecting support is fixedly connected to the left rear end of the upper rail of the slide rail mechanism and hinged to the left rear side of the rotating disc and has a first curved slot for sliding of a hinge piece forming the second hinge point, the second connecting support is fixedly connected to the right front end of the slide rail mechanism and hinged to the right front side of the rotating disc and has a second curved slot for sliding of a hinge piece forming the third hinge point, and the rotating disc is also directly hinged to the right rear end of the slide rail mechanism, the rotating seat mechanism further comprises a main safety belt support fixedly connected to the right rear end of the upper rail of the slide rail mechanism, the rotating disc is hollow designed to provide an avoiding space for the main safety belt so that the main safety belt on the main safety belt support does not affect the rotation of the rotating disc, the rotating disc has an inward recessed portion for avoiding the main safety belt support, the first connecting support is integrated with a secondary safety belt mounting point to connect a secondary safety belt support, the secondary safety belt mounting point on the first connecting support laterally extends to avoid the rotating disc, in the rotating state, the first motor drives the first slide rail to move backward, the second motor drives the second slide rail to move forward, thereby generating reverse motion, causing the rotating disc to rotate based on the four hinge points.

2. The swivel chair mechanism of claim 1, wherein, The slide rail mechanism is fixedly connected to the vehicle body through the mounting feet.

3. The swivel chair mechanism of claim 1, wherein, The first mounting strip has a first boss, and the first motor support is mounted on the first boss; the second mounting strip has a second boss, and the second motor support is mounted on the second boss. The first connecting support is integrated with a secondary safety belt mounting point to connect a secondary safety belt support, the secondary safety belt mounting point on the first connecting support laterally extends to avoid the rotating disc, in the rotating state, the first motor drives the first slide rail to move backward, the second motor drives the second slide rail to move forward, thereby generating reverse motion, causing the rotating disc to rotate based on the four hinge points.

4. The swivel chair mechanism of claim 1, wherein, The first motor is connected with the first slide rail through a first flexible shaft and a first flexible shaft sleeve, the middle of the first motor support has a first bending buckle, the first flexible shaft and the first flexible shaft sleeve are limited by the first bending buckle, the second motor is connected with the second slide rail through a second flexible shaft and a second flexible shaft sleeve, the middle of the second motor support has a second bending buckle, the second flexible shaft and the second flexible shaft sleeve are limited by the second bending buckle.

5. The swivel chair mechanism of claim 1, wherein, First soft pad is arranged between the first motor and the first motor support, and second soft pad is arranged between the second motor and the second motor support.

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