Car seats and seat rotation mechanisms

Abstract

The present invention relates to a seat rotation mechanism, comprising a base, a turntable rotatably connected to the base, and a pressure plate, a base center hole is provided in the middle of the base, a turntable center hole corresponding to the base center hole is provided in the middle of the turntable, an annular U-shaped groove is formed at the bottom of the turntable toward the base, a reinforcing plate is buckled at the bottom of the turntable to form a closed cavity inside the turntable, and a reinforcing plate center hole corresponding to the turntable center hole is provided in the middle of the reinforcing plate, a support cylinder of the pressure plate passes through the turntable center hole and the reinforcing plate center hole and is fixedly connected to the base, an outer flange of the pressure plate presses the turntable and the base tightly, and balls placed in a retaining frame are provided between the outer flange and the turntable and between the reinforcing plate and the base, the thickness of the turntable and the reinforcing plate in the present invention can be made smaller, and the weight of the entire seat rotation mechanism is smaller, which is conducive to reducing the weight of the entire vehicle, and the turntable has small resistance and rotates smoothly during the rotation process. The present invention also relates to a car seat.

Description

Technical Field

[0001] The invention relates to the technical field of vehicle seat design and production, and in particular to a vehicle seat and a seat rotating mechanism. Background Art

[0002] With the development of society, users have more and more demands on the functions of car seats. The ability to rotate car seats is one of the main demands of users for the functionality of car seats. The emergence of rotating seats has greatly improved the interactivity of passengers in the car, making communication and exchanges more convenient and comfortable.

[0003] The seat rotation mechanism currently on the market is usually composed of a base and a turntable, with a ball fixed between the base and the turntable by a cage. Since the current turntable is basically a flat disc structure, it is very easy to deform the structure when it is subjected to a large load and undergoes bumps and creeps. For this situation, the current common solution is to increase the thickness of the parts, but this increases the production cost of the seat rotation mechanism on the one hand, and on the other hand, it is contrary to the current production requirements of reducing the weight of the entire vehicle and saving energy consumption. Summary of the invention

[0004] One of the purposes of the present invention is to disclose a seat rotating mechanism so that the seat rotating mechanism can have a lower weight and lower production cost while enhancing the strength of the turntable, and can effectively reduce the rotational resistance between the turntable and the base.

[0005] Another object of the present invention is to provide a car seat having the seat rotation mechanism.

[0006] To achieve the above-mentioned purpose, the seat rotation mechanism provided by the present invention includes a base, a turntable rotatably connected to the base, and a pressure plate, wherein a base center hole is opened in the middle of the base, a turntable center hole corresponding to the base center hole is opened in the middle of the turntable, the outer edge of the turntable has an outer edge folded edge bent toward the base, the edge of the turntable center hole is provided with a center hole folded edge bent toward the base, the bottom of the turntable forms an annular U-shaped groove facing the base, the bottom of the turntable is also buckled with a reinforcement plate that forms a closed cavity inside the turntable, and a reinforcement plate center hole corresponding to the turntable center hole is provided in the middle of the reinforcement plate, and also includes a pressure plate, the pressure plate includes a support tube and an outer flange arranged at the top of the support tube, the support tube passes through the turntable center hole and the reinforcement plate center hole and is fixedly connected to the base, the outer flange presses the turntable and the base, and balls placed in a retaining frame are provided between the outer flange and the turntable and between the reinforcement plate and the chassis.

[0007] Preferably, the reinforcement plate includes two supporting edges respectively contacting the outer edge fold and the center hole fold, and an annular boss located between the two supporting edges and protruding toward the cavity of the U-shaped groove.

[0008] Preferably, the retaining frame is an annular plastic retaining frame.

[0009] Preferably, a plastic washer for reducing friction is installed between the support cylinder and the turntable.

[0010] Preferably, it further comprises a locking device for locking the turntable and the base, wherein the locking device comprises:

[0011] A lock bracket fixedly arranged on the base, wherein a card slot is provided on the lock bracket;

[0012] An unlocking piece hinged to the bottom of the rotating disk, the unlocking piece being provided with a latch pin capable of being inserted into the latch slot;

[0013] A cable is arranged on the unlocking piece, and when the cable is tightened, the unlocking piece rotates and brings the bayonet out of the slot;

[0014] A return spring is connected to the rotating disk at one end and to the unlocking piece at the other end. When the cable is in a relaxed state, the return spring drives the unlocking piece to rotate and causes the latch to engage in the latching slot.

[0015] Preferably, the cable is a manual cable or an electric cable.

[0016] Preferably, the lock brackets include n pieces, and the n lock brackets are evenly distributed on the same circumference, wherein n is a positive integer not less than 2.

[0017] Preferably, it also includes n pairs of anti-detachment hooks, the central angle between two adjacent pairs of the anti-detachment hooks is equal to the central angle between two adjacent brackets, any pair of the anti-detachment hooks includes an upper anti-detachment hook and a lower anti-detachment hook, the first end of the upper anti-detachment hook is fixed on the turntable, and the second end thereof is bent downward and provided with an upper hook body; the first end of the lower anti-detachment hook is fixed on the base, and the second end thereof is bent upward and provided with a lower hook body, and the upper hook body and the lower hook body are interlocked with each other.

[0018] The automobile seat disclosed in the present invention comprises a seat frame and the seat rotating mechanism disclosed in any one of the above items, wherein the turntable is fixedly connected to the seat frame, and the base is used to be fixedly connected to a slide rail or a vehicle body.

[0019] It can be seen from the above technical scheme that the seat rotation mechanism disclosed in the present invention includes a base, a turntable rotatably connected to the base, and a pressure plate. A base center hole is opened in the center of the base, and a turntable center hole is opened in the middle of the turntable. The turntable is not a planar structure. The outer edge of the turntable has an outer edge folded edge bent toward the base, and the edge of the turntable center hole is provided with a center hole folded edge bent toward the base. The outer edge folded edge and the center hole folded edge make the bottom of the turntable form an annular U-shaped groove facing the base. A reinforcement plate is also buckled at the bottom of the turntable, and the reinforcement plate closes the opening of the U-shaped groove, so that a closed cavity is formed inside the turntable. The support tube of the pressure plate passes through the turntable center hole and the reinforcement plate center hole and is fixedly connected to the base. The outer flange of the pressure plate presses the turntable and the base tightly. Balls placed in a retaining frame are provided between the outer flange and the turntable and between the reinforcement plate and the chassis.

[0020] Compared with a flat turntable, the strength of the turntable with a closed cavity inside is improved; compared with the solution of increasing the strength by thickening the turntable, under the same strength, the thickness of the turntable and the reinforcement plate in the present invention can be made smaller, and the weight of the entire seat rotation mechanism is smaller, which is beneficial to reducing the weight and energy consumption of the vehicle; after arranging ball bearings between the flange and the turntable and between the reinforcement plate and the chassis, the friction between the reinforcement plate and the base and the pressure plate, as well as between the top of the turntable and the outer flange of the pressure plate during the rotation of the turntable can be effectively reduced, thereby improving the smoothness of the turntable during rotation, thereby enhancing the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 is an overall schematic diagram of a seat rotation mechanism disclosed in an embodiment of the present invention;

[0022] Figure 2 for Figure 1 An exploded structural diagram of the seat rotation mechanism shown in ;

[0023] Figure 3 It is a structural schematic diagram of a locking device in an embodiment of the present invention;

[0024] Figure 4 for Figure 3 The exploded structural diagram of the locking device shown;

[0025] Figure 5 for Figure 1 A cross-sectional schematic diagram of the seat rotation mechanism disclosed in .

[0026] Among them, 101 is an upper anti-disconnection hook, 102 is a pressure plate, 103 is a turntable, 104 is an upper connecting bolt, 105 is an upper retaining frame, 106 is a plastic washer, 107 is a reinforcing plate, 108 is an upper ball bearing, 109 is a base, 110 is a lower connecting bolt, 111 is a lower anti-disconnection hook, 112 is a lower ball bearing, 113 is a lower retaining frame, 200 is a locking device, 201 is a cable, 202 is an unlocking plate, 203 is a reset spring, 204 is a lock bracket, 205 is a bayonet, 206 is a screw, 207 is a gasket, and 208 is a nut. DETAILED DESCRIPTION

[0027] One of the cores of the present invention is to provide a seat rotating mechanism so that the seat rotating mechanism can have a lower weight and lower production cost while enhancing the strength of the turntable, and can effectively reduce the rotational resistance between the turntable and the base.

[0028] Another core of the present invention is to provide a car seat with the above-mentioned seat rotation mechanism.

[0029] In order to enable those skilled in the art to better understand the solution of the present invention, the present invention is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0030] Please refer to Figure 1 and Figure 2 The seat rotation mechanism disclosed in the present invention comprises a base 109, a turntable 103 rotatably connected to the base 109, and a pressure plate 102. A base center hole is provided in the middle of the base 109, a turntable center hole corresponding to the base center hole is provided in the middle of the turntable 103, an outer edge of the turntable 103 has an outer edge folded edge bent toward the base 109, an edge of the turntable center hole is provided with a center hole folded edge bent toward the base 109, and an annular U-shaped groove is formed at the bottom of the turntable 103 toward the base 109 by the outer edge folded edge and the center hole folded edge. In addition, a reinforcing plate 107 is fastened at the bottom of the turntable 103 to form a closed cavity inside the turntable 103. A reinforcing plate center hole corresponding to the center hole of the turntable is provided in the middle of the reinforcing plate 107. The pressure plate 102 includes a support tube and an outer flange arranged on the top of the support tube. The support tube passes through the center hole of the turntable and the center hole of the reinforcing plate and is fixedly connected to the base 109. The outer flange presses the turntable 103 and the base 109, and balls placed in a retaining frame are provided between the outer flange and the turntable 103 and between the reinforcing plate 107 and the base 109.

[0031] The seat rotation mechanism disclosed in the above embodiment includes a base 109, a turntable 103 rotatably connected to the base 109, and a pressure plate 102. A base center hole is opened in the middle of the base, and a turntable center hole is opened in the middle of the turntable 103. The turntable 103 is not a planar structure. The outer edge of the turntable 103 has an outer edge folded edge bent toward the base 109, and the edge of the turntable center hole is provided with a center hole folded edge bent toward the base 109. The outer edge folded edge and the center hole folded edge make the bottom of the turntable 103 shaped The turntable 103 is provided with a reinforcing plate 107 at the bottom, which closes the opening of the U-shaped groove, thereby forming a closed cavity inside the turntable 103. The support tube of the pressure plate 102 passes through the center hole of the turntable and the center hole of the reinforcing plate and is fixedly connected to the base 109. The outer flange of the pressure plate 102 presses the turntable 103 and the base 109 tightly, and balls placed in a retaining frame are arranged between the outer flange and the turntable 103 and between the reinforcing plate 107 and the base 109.

[0032] Compared with a flat turntable, the strength of the turntable 103 with a closed cavity inside is improved; compared with the solution of increasing the strength by thickening the turntable, under the same strength, the thickness of the turntable 103 and the reinforcement plate 107 in the present invention can be made smaller, and the weight of the entire seat rotation mechanism is smaller, which is beneficial to reducing the weight and energy consumption of the vehicle; after arranging ball bearings between the flange and the turntable and between the reinforcement plate and the chassis, the friction between the reinforcement plate and the base and the pressure plate, as well as between the top of the turntable and the outer flange of the pressure plate during the rotation of the turntable can be effectively reduced, thereby improving the smoothness of the turntable during rotation, thereby enhancing the user experience.

[0033] Please refer to Figure 2 (For the convenience of display, the upper retaining frame 105 and the upper ball 108 are displayed under the turntable 103. In fact, the retaining frame 105 and the upper ball 108 are located between the pressure plate 102 and the turntable 103). The reinforcing plate 107 includes two supporting edges that are in contact with the outer edge fold and the center hole fold respectively, and an annular boss located between the two supporting edges. The annular boss protrudes toward the cavity of the U-shaped groove. This arrangement makes the reinforcing plate 107 more compatible with the bottom shape of the turntable 103.

[0034] The base 109 and the pressure plate 102 form an integral body, which is equivalent to the stator. The turntable 103 equipped with the reinforcement plate 107 is equivalent to the rotor matched with the stator. In the vertical direction, the rotor and the stator have two contact positions during the rotation process, namely the contact position between the outer flange and the turntable 103, and the contact position between the reinforcement plate 107 and the base 109. The balls limited by the retaining frame are respectively arranged at these two contact positions, which can effectively reduce the rotation resistance of the turntable during the rotation process and improve the smoothness of the turntable during the rotation process. Figure 2As shown in the figure, the holder provided at the contact position between the outer flange and the rotating disk 103 is called the upper holder 105, the ball embedded in the upper holder 105 is called the upper ball, the holder provided at the contact position between the reinforcing plate 107 and the base 109 is called the lower holder 113, and the ball embedded in the lower holder 113 is called the lower ball 112. Since the holder is subjected to less force, the upper holder 105 and the lower holder 113 can be made of plastic material from the perspective of reducing the weight of the whole vehicle.

[0035] In the circumferential direction, the stator and the rotor also have contact positions, namely, the center hole of the turntable and the support cylinder of the pressure plate 102. In order to reduce wear, a plastic washer 106 (such as a polyformaldehyde washer) is installed between the support cylinder and the turntable 103 to reduce friction, so as to make the rotation motion smoother.

[0036] Please refer to Figures 2 to 4 The locking device 200 disclosed in this embodiment includes a lock bracket 204, an unlocking piece 202, a cable 201 and a reset spring 203. The lock bracket 204 is fixedly arranged on the base 109, and a card slot is provided on the lock bracket 204. The shape of the card slot is designed according to needs. The card slot shape in this embodiment can be a U-shaped slot. The unlocking piece 202 is hinged at the bottom of the rotating disk 103, and the unlocking piece 202 is provided with a card pin 205 that can be inserted into the card slot. The cable 201 is connected to the unlocking piece 202. The cable 201 can be a manual cable or an electric cable driven by a motor. When the cable 201 is tightened, the unlocking piece 202 rotates and brings the pin 205 out of the slot, and the turntable 103 and the base 109 are unlocked; one end of the return spring 203 is connected to the turntable 103, and the other end is connected to the unlocking piece 202. When the cable 201 is in a relaxed state, the return spring 203 drives the unlocking piece 202 to rotate and makes the pin 205 get into the slot, and the turntable 103 and the base 109 are locked.

[0037] For more details, please refer to Figure 4 The lock bracket 204 is fixedly arranged on the chassis, the gasket 207 is fixedly connected to the bottom of the chassis, the screw 206 passes through the through hole on the gasket 207, and cooperates with the nut 208 to realize the hinge connection between the unlocking piece 202 and the bottom of the turntable 103.

[0038] The lock bracket 204 specifically includes n lock brackets 204, which are evenly distributed on the same circumference, wherein n is a positive integer not less than 2. It can be understood by those skilled in the art that the number of lock brackets 204 determines the number of gears of the electric seat rotation mechanism. For example, if two lock brackets 204 are provided, the turntable 103 has two gears of 0° and 180°.

[0039] In order to further optimize the scheme and prevent the turntable 103 from falling off the base 109, an anti-detachment hook is also provided in this embodiment. The anti-detachment hooks are arranged in pairs. Any pair of anti-detachment hooks includes an upper anti-detachment hook 101 and a lower anti-detachment hook 111. The first end of the upper anti-detachment hook 101 is fixed on the turntable 103, and the second end is bent downward and provided with an upper hook body; the first end of the lower anti-detachment hook 111 is fixed on the base 109, and the second end is bent upward and provided with a lower hook body. The upper hook body and the lower hook body are interlocked with each other to allow the turntable 103 to rotate in the circumferential direction, but the turntable 103 is not allowed to move axially. It is not difficult for those skilled in the art to understand that the number of anti-detachment hooks should be equal to the number of gears of the electric seat rotation mechanism. In the case of providing n lock brackets 204, the electric seat rotation mechanism should include n pairs of anti-detachment hooks, and the central angle between two adjacent pairs of the anti-detachment hooks is equal to the central angle between two adjacent brackets.

[0040] In addition, the present invention also discloses a car seat, including a seat frame and the seat rotation mechanism disclosed in any of the above embodiments, and the turntable 103 is fixedly connected to the seat frame via an upper connecting bolt 104, and the base 109 is fixedly connected to the slide rail or the body via a lower connecting bolt 110.

[0041] Since the above-mentioned seat rotating mechanism is adopted, the car seat has the corresponding technical advantages of the above-mentioned electric seat rotating mechanism, which will not be described in detail in this article.

[0042] The above is a detailed introduction to the automobile seat and the seat rotation mechanism provided by the present invention. This article uses specific examples to illustrate the principles and implementation methods of the present invention. The description of the above embodiments is only used to help understand the method and core ideas of the present invention. It should be pointed out that for ordinary technicians in this technical field, without departing from the principles of the present invention, the present invention can also be improved and modified in a number of ways, and these improvements and modifications also fall within the scope of protection of the claims of the present invention.

Claims

1. A seat rotation mechanism, comprising a base (109), a turntable (103) rotatably connected to the base (109), and a pressure plate (102), characterized in that: A base center hole is provided in the middle of the base (109), a turntable center hole corresponding to the base center hole is provided in the middle of the turntable (103), the outer edge of the turntable (103) has an outer edge folded edge bent toward the base (109), the edge of the turntable center hole is provided with a center hole folded edge bent toward the base (109), the bottom of the turntable (103) forms an annular U-shaped groove facing the base (109), and the bottom of the turntable (103) is also buckled with a reinforcing plate (103) for forming a closed cavity inside the turntable (103). 07), and a reinforcing plate center hole corresponding to the center hole of the turntable is arranged in the middle of the reinforcing plate (107), the pressure plate (102) comprises a support tube and an outer flange arranged on the top of the support tube, the support tube passes through the center hole of the turntable and the center hole of the reinforcing plate and is fixedly connected to the base (109), the outer flange presses the turntable (103) and the base (109), and balls placed in a retaining frame are arranged between the outer flange and the turntable (103) and between the reinforcing plate (107) and the base (109); The retaining frame is an annular plastic retaining frame.

2. The seat rotation mechanism according to claim 1, characterized in that: The reinforcing plate (107) comprises two supporting edges respectively contacting the outer edge fold and the center hole fold, and an annular boss located between the two supporting edges and protruding toward the cavity of the U-shaped groove.

3. The seat rotation mechanism according to claim 1, characterized in that: A plastic washer (106) for reducing friction is also installed between the support cylinder and the rotating disk (103).

4. The seat rotation mechanism according to any one of claims 1 to 3, characterized in that: It also includes a locking device (200) for locking the rotating disk (103) and the base (109), wherein the locking device (200) includes: A lock bracket (204) fixedly arranged on the base (109), wherein a card slot is provided on the lock bracket (204); An unlocking piece (202) hinged to the bottom of the rotating disk (103), wherein the unlocking piece (202) is provided with a latch (205) capable of being latched into the latch slot; A pull cable (201) is arranged on the unlocking piece (202), and when the pull cable (201) is tightened, the unlocking piece (202) rotates and brings the latch (205) out of the latch slot; A return spring (203) is connected to the rotating disk (103) at one end and to the unlocking piece (202) at the other end. When the cable (201) is in a relaxed state, the return spring (203) drives the unlocking piece (202) to rotate and causes the latch (205) to be latched into the latch slot.

5. The seat rotation mechanism according to claim 4, characterized in that: The pull cable (201) is a manual pull cable or an electric pull cable.

6. The seat rotation mechanism according to claim 4, characterized in that: The lock brackets (204) include n lock brackets (204), and the n lock brackets (204) are evenly distributed on the same circumference, wherein n is a positive integer not less than 2.

7. The seat rotation mechanism according to claim 6, characterized in that: It also includes n pairs of anti-detachment hooks, the central angle between two adjacent pairs of the anti-detachment hooks is equal to the central angle between two adjacent lock brackets (204), and any pair of the anti-detachment hooks includes an upper anti-detachment hook and a lower anti-detachment hook, the first end of the upper anti-detachment hook is fixed on the rotating disk (103), and the second end thereof is bent downward and provided with an upper hook body; the first end of the lower anti-detachment hook is fixed on the base (109), and the second end thereof is bent upward and provided with a lower hook body, and the upper hook body and the lower hook body are interlocked.

8. A car seat, comprising a seat frame and a seat rotation mechanism as described in any one of claims 1 to 7, wherein the turntable (103) is fixedly connected to the seat frame, and the base (109) is used to be fixedly connected to a slide rail or a vehicle body.

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