CN112977214A

CN112977214A - Side handrail lifting mechanism

Info

Publication number: CN112977214A
Application number: CN202110247183.7A
Authority: CN
Inventors: 唐晓俊; 吴飞飞; 李侠; 陈子一; 徐东海
Original assignee: Yanfeng Adient Seating Co Ltd
Current assignee: Yanfeng Adient Seating Co Ltd
Priority date: 2021-03-05
Filing date: 2021-03-05
Publication date: 2021-06-18
Anticipated expiration: 2041-03-05
Also published as: CN112977214B

Abstract

The invention relates to a side handrail lifting mechanism which comprises a sliding block sliding rail assembly, a beam assembly and a motor screw rod assembly, wherein the sliding block sliding rail assembly is arranged on the side handrail; the sliding block sliding rail assembly comprises two sliding block sliding rail assemblies which are spaced from each other and a fixed cross beam which is fixedly connected between the two sliding block sliding rail assemblies; the beam assembly is supported on the slide block and slide rail assembly; the motor screw rod assembly comprises a motor, a gearbox and a screw rod, one end of the screw rod is fixedly connected with the beam assembly, and the other end of the screw rod is connected to the motor through the gearbox so as to drive the screw rod through the motor and further drive the beam assembly to lift. According to the side handrail lifting mechanism disclosed by the invention, the surrounding type handrail achieves the lifting function through the motor screw rod assembly, so that the problem that the side handrail brings obstruction to the process of passengers entering a cabin is solved.

Description

Side handrail lifting mechanism

Technical Field

The present invention relates to vehicle seats, and more particularly to a side armrest lift mechanism.

Background

The automobile side armrest is used as a functional part of automobile interior decoration, and mainly has the functions of providing elbow support for passengers and improving the comfort of the passengers in the riding process.

The Captain seat surrounding armrests on the market are all fixed, and can provide good elbow support for passengers, but also bring obstruction to the passenger cabin entering process.

Disclosure of Invention

In order to solve the problem that the automobile side handrail in the prior art brings obstruction to the process of passengers entering a cabin, the invention provides a side handrail lifting mechanism.

The side handrail lifting mechanism comprises a sliding block sliding rail assembly, a beam assembly and a motor screw rod assembly; the sliding block sliding rail assembly comprises two sliding block sliding rail assemblies which are spaced from each other and a fixed cross beam which is fixedly connected between the two sliding block sliding rail assemblies; the beam assembly is supported on the slide block and slide rail assembly; the motor screw rod assembly comprises a motor, a gearbox and a screw rod, one end of the screw rod is fixedly connected with the beam assembly, and the other end of the screw rod is connected to the motor through the gearbox so as to drive the screw rod through the motor and further drive the beam assembly to lift.

Preferably, the motor screw rod assembly further comprises a fixing support fixedly supported on the fixing cross beam, and the motor and the gearbox are respectively mounted on the fixing support.

Preferably, the gearbox has a bayonet, the fixing bracket has a slot, and the gearbox is clamped into the slot of the fixing bracket through the bayonet to limit the displacement of the gearbox through the fixing bracket.

Preferably, the lead screw is inserted into the transmission case to be fixed so as to further limit the displacement of the transmission case.

Preferably, the slider slide rail assembly comprises a slider fixing square tube and a slide rail fixing square tube capable of lifting relative to the slider fixing square tube, the fixing cross beam is fixedly connected between the two slider fixing square tubes, and the cross beam assembly is supported on the slide rail fixing square tube.

Preferably, slider slide rail set spare still includes slider and slide rail, and the slider is fixed to the fixed square pipe of slider on, and the slide rail is fixed to the fixed square pipe of slide rail on, and the slider cooperates with the slide rail for the fixed square pipe of slide rail provides the direction for the lift of the fixed square pipe of slider.

Preferably, the slider has a dovetail slot in which at least part of the slide rail is received for sliding retention.

Preferably, the beam assembly comprises a handrail beam and a connecting support, wherein the handrail beam is connected and fixed on the sliding rail fixing square pipe through the connecting support.

Preferably, the slider slide rail assembly further comprises an assembly mounting bracket and an assembly mounting square tube which are fixed on the seat side plate, wherein the assembly mounting bracket is fixedly connected to the fixed cross beam, and the assembly mounting square tube is fixedly connected to the slider fixed square tube and laterally extends out to be inserted into the hole groove of the seat side plate.

Preferably, the lead screw has a nut that engages the gearbox to define the extreme positions of the beam assembly.

According to the side handrail lifting mechanism disclosed by the invention, the surrounding type handrail achieves the lifting function through the motor screw rod assembly, so that the problem that the side handrail brings obstruction to the process of passengers entering a cabin is solved. In addition, according to the side armrest lifting mechanism, the chair grade can be improved, and the luxury feeling is embodied.

Drawings

FIG. 1 illustrates a change in state of a side armrest of a car seat from a lowermost position to an uppermost position, wherein the side armrest includes a side armrest lift mechanism in accordance with a preferred embodiment of the present invention;

FIG. 2 is an exploded view of the side rail of FIG. 1;

FIG. 3 is an assembled schematic view of the side armrest lifting mechanism of FIG. 2;

FIG. 4A is an assembled schematic view of a slider rail assembly of the slider rail assembly of FIG. 3;

FIG. 4B is a cross-sectional view taken along line A-A of FIG. 4A;

FIG. 5 is an assembled schematic view of the side arm lift mechanism of FIG. 3 mounted to a side panel of a vehicle seat;

FIG. 6A is an assembled schematic view of the motor screw assembly of FIG. 3;

FIG. 6B illustrates a change in state of the lead screw of the motor lead screw assembly of FIG. 6A from a lowest position to a highest position;

FIG. 6C is an assembled schematic view of the transmission case and the stationary bracket of FIG. 6A;

FIG. 7A is an assembly view of the side armrest lifting mechanism of FIG. 3 in a design position (i.e., a lowermost position);

fig. 7B is an assembled view of the use position (i.e., the uppermost position) of the side armrest lift mechanism of fig. 3.

Detailed Description

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

As shown in fig. 1, the automobile seat a has a side armrest B that is at the lowest position (a position flush with the seat) when a passenger is about to enter the cabin, facilitating the entry of the passenger; when the passenger sits on the seat, the side armrests B rise to the highest positions to support the elbows of the passenger, so that the passenger can ride comfortably.

As shown in fig. 2, the side handrail B comprises a lower side plate plastic part B1, a first side mounting side plate plastic part B2, a second side mounting side plate plastic part B3, an upper side mounting side plate plastic part B4 and a side handrail lifting mechanism B5 according to a preferred embodiment of the present invention, as shown in fig. 3, the side handrail lifting mechanism B5 comprises a slider slide rail assembly 1, a beam assembly 2 supported on the slider slide rail assembly 1 and a motor screw assembly 3 fixedly connected to the slider slide rail assembly 1 to drive the beam assembly 2 to ascend and descend, returning to fig. 2, the lower side plate plastic part B1 fixedly connected to the slider slide rail assembly 1 of the side handrail lifting mechanism B5 surrounds the side handrail lifting mechanism B5 from below, the first side mounting side plate B2 and the second side mounting side plate B3 fastened by two side bayonets respectively surround the side handrail lifting mechanism B5 from two sides, an upper mounting side panel plastic member B4 fixedly attached to the cross beam assembly 2 of side arm lift mechanism B5 surrounds side arm lift mechanism B5 from above, thereby forming a large surrounding arm assembly (i.e., a surrounding arm rest).

As shown in fig. 3, the slider rail assembly 1 includes two slider rail members 11 spaced apart from each other and a fixed cross member 12 fixedly connected (e.g., welded) between the two slider rail members 11. As shown in fig. 4A, the slider-sliding rail assembly 11 includes a slider-fixing square tube 111, two sliders 112, a sliding rail-fixing square tube 113 and two sliding rails 114, as shown in fig. 4B, the two sliders 112 are respectively fixed to two opposite sides of the slider-fixing square tube 111 by first screws 112a, the two sliding rails 114 are respectively fixed to two opposite sides of the sliding rail-fixing square tube 113 by second screws 114A, and the sliders 112 slide into the sliding rails 114 to cooperate with the sliding rails 114 to provide guidance for the sliding rail-fixing square tube 113 to ascend and descend relative to the slider-fixing square tube 111. Specifically, as shown in fig. 4B, the slider 112 has a dovetail groove, and at least a portion of the slide rail 114 is received in the dovetail groove to be slidably retained therein.

Returning to fig. 3, the beam assembly 2 includes a handrail beam 21 and two connecting brackets 22, wherein two opposite ends of the handrail beam 21 are respectively connected and fixed to the top ends of the sliding rail fixing square tubes 113 through the connecting brackets 22. In this way, the slider fixing square tube 111 is formed as a fixed member, and the slide rail fixing square tube 113 is accommodated therebetween and reciprocates up and down by the cooperation of the slider 112 and the slide rail 114 (see fig. 4A to 4B), thereby completing the lifting and guiding operation of the handrail cross member 21. In addition, the slider sliding rail assembly 1 further includes two assembly mounting brackets 13 and two assembly mounting square tubes 14, wherein the fixed cross beam 12 is fixedly connected (e.g., welded) between the slider fixing square tubes 111 of the two slider sliding rail assemblies 11, the two assembly mounting brackets 13 are fixedly connected (e.g., fixed by bolts) to the fixed cross beam 12 at intervals, and the assembly mounting square tubes 14 are respectively fixedly connected (e.g., welded) to the slider fixing square tubes 111 of the slider sliding rail assemblies 11 and laterally extend out. As shown in fig. 5, the assembly mounting square tube 14 is inserted into the hole slot of the seat side plate, and the assembly mounting bracket 13 and the assembly mounting square tube 14 are fixed on the seat side plate by bolts, respectively, and referring to fig. 2, the slider fixing square tube 111 and the lower side plate plastic part B1 of the two slider rail assemblies 11 of the slider rail assembly 1 of the side armrest lifting mechanism B5 are also fixed on the seat side plate, thereby completing the installation of the side armrest B. It should be understood that the manner of fixing the side arm lift mechanism B5 to the seat is only an example and not a limitation, and other fixing manners may be used instead, such as welding the side arm to the side plate, welding the side arm to the seat cushion or connecting the side arm to the seat cushion through bolts.

As shown in fig. 6A, the motor screw assembly 3 includes a motor 31, two gearboxes 32 and two screws 33, wherein the top end of the screw 33 is fixedly connected to the handrail cross member 21 (see fig. 3) and the bottom end thereof is connected to the motor 31 through the gearboxes 32 to drive the screw 33 through the motor 31. In this embodiment, the motor 31 is connected to the transmission case 32 through two flexible shafts. As shown in fig. 6B, when a passenger wants to enter the cabin, the motor 31 reverses the output power through the gearbox 32 to drive the screw rod 33 to move downwards; similarly, when the passenger sits on the seat, the motor 31 reverses the output power through the gearbox 32 to drive the screw rod 33 to move upwards.

As shown in fig. 6A, the motor screw assembly 3 further includes two fixing brackets 34, referring to fig. 3, bottom ends of the fixing brackets 34 are fixedly connected (for example, connected by bolts) to the fixing beam 12, as shown in fig. 6C, two bayonets 321 are respectively disposed on left and right sides of the transmission case 32, two bayonets 341 are respectively disposed on left and right sides of the fixing brackets 34, the transmission case 32 is clamped into the bayonets 341 of the fixing brackets 34 through the bayonets 321, so that left and right up and down displacement of the transmission case 32 is limited by the fixing brackets 34, and when the transmission case is returned to fig. 6A, the screw 33 is inserted into the transmission case 32. In the present embodiment, the motor 31 is fixedly connected (e.g., bolted) to the fixed bracket 34 to form the motor screw assembly 3.

As shown in fig. 7A, when a passenger wants to enter the cabin, the motor 31 drives the lead screw 33 to perform a descending motion, and the two slide block and slide rail assemblies 11 perform a guiding function to ensure the smooth motion. When the handrail cross beam 21 touches the top end of the slider fixing square tube 111, the lowest mechanical limit point is reached. At the moment, the armrest lifting mechanism is lowered to the lowest position (the position flush with the seat), and passengers can conveniently enter the armrest lifting mechanism.

As shown in fig. 7B, when the passenger sits stably on the seat, the motor 31 drives the screw rod 33 to move upwards, and the two slide block and slide rail assemblies 11 play a guiding role to ensure the movement stability. When the nut 331 at the lower end of the lead screw 33 touches the bottom of the housing of the gearbox 32, the highest point of mechanical limit is reached. At the moment, the armrest lifting mechanism is lifted to the highest position to support the elbow of the passenger, so that the riding comfort is provided.

The above embodiments are merely preferred embodiments of the present invention, which are not intended to limit the scope of the present invention, and various changes may be made in the above embodiments of the present invention. All simple and equivalent changes and modifications made according to the claims and the content of the specification of the present application fall within the scope of the claims of the present patent application. The invention has not been described in detail in order to avoid obscuring the invention.

Claims

1. A side handrail lifting mechanism is characterized by comprising a sliding block sliding rail assembly, a beam assembly and a motor screw rod assembly; the sliding block sliding rail assembly comprises two sliding block sliding rail assemblies which are spaced from each other and a fixed cross beam which is fixedly connected between the two sliding block sliding rail assemblies; the beam assembly is supported on the slide block and slide rail assembly; the motor screw rod assembly comprises a motor, a gearbox and a screw rod, one end of the screw rod is fixedly connected with the beam assembly, and the other end of the screw rod is connected to the motor through the gearbox so as to drive the screw rod through the motor and further drive the beam assembly to lift.

2. The side armrest lifting mechanism of claim 1 wherein the motor screw assembly further comprises a fixed bracket fixedly supported on the fixed cross member, the motor and the gearbox being mounted to the fixed bracket, respectively.

3. The side rail lifting mechanism of claim 2, wherein the gearbox has a bayonet and the stationary bracket has a catch, the gearbox being snapped into the catch of the stationary bracket by the bayonet to limit displacement of the gearbox by the stationary bracket.

4. The side armrest lifting mechanism of claim 3, wherein the lead screw is secured in place by insertion into a gear box to further limit the displacement of the gear box.

5. The side armrest lifting mechanism according to claim 1, wherein the slider-slide rail assembly comprises a slider-fixing square tube and a slide-fixing square tube which is liftable relative to the slider-fixing square tube, the fixing beam is fixedly connected between the two slider-fixing square tubes, and the beam assembly is supported on the slide-fixing square tube.

6. The side armrest lifting mechanism of claim 5, wherein the slider and slide rail assembly further comprises a slider and a slide rail, the slider is fixed to the slider fixed square tube, the slide rail is fixed to the slide rail fixed square tube, and the slider and the slide rail cooperate to provide guidance for the slide rail fixed square tube to ascend and descend relative to the slider fixed square tube.

7. The side rail lift mechanism of claim 6 wherein the slide block has a dovetail slot, at least a portion of the slide rail being received in the dovetail slot to slidably retain the slide rail.

8. The side rail lifting mechanism of claim 5, wherein the beam assembly comprises a rail beam and a connecting bracket, wherein the rail beam is connected and fixed on the sliding rail fixing square tube through the connecting bracket.

9. The side armrest lifting mechanism of claim 5, wherein the slider rail assembly further comprises an assembly mounting bracket and an assembly mounting square tube fixed to the seat side plate, wherein the assembly mounting bracket is fixedly connected to the fixed cross member, and the assembly mounting square tube is fixedly connected to the slider fixing square tube and extends laterally to be inserted into the hole slot of the seat side plate.

10. The side armrest lifting mechanism of claim 1, wherein the lead screw has a nut that engages the gearbox to define the limit position of the cross beam assembly.