CN217374257U

CN217374257U - Telescopic rotating mechanism for electric handrail

Info

Publication number: CN217374257U
Application number: CN202220298954.5U
Authority: CN
Inventors: 战磊; 邢俏芳; 李永生; 杨姣
Original assignee: Changchun Faway Adient Automotive Systems Co Ltd
Current assignee: Changchun Faway Adient Automotive Systems Co Ltd
Priority date: 2022-02-15
Filing date: 2022-02-15
Publication date: 2022-09-06
Anticipated expiration: 2032-02-15

Abstract

The utility model relates to a telescopic rotating mechanism for an electric handrail; the device mainly comprises a cylindrical cam with gears, a fixed sleeve, a pin A, a pin B, a rotating shaft and a motor; the cylindrical cam with the gear is matched with the fixed sleeve, the fixed sleeve and the stepped hollow shaft limit other degrees of freedom of the cylindrical cam with the gear together, and only the rotational degree of freedom of the cylindrical cam with the gear is reserved; the gear-bearing cylindrical cam is provided with a modified gear and a track groove C; the rotating shaft is provided with a track groove A and a track groove B from right to left; the pin B is fixed on the rotating shaft and moves relative to the track groove C on the cylindrical cam with the gear; the pin A is fixed on the fixed sleeve, and moves linearly relative to the track groove A and rotates relative to the track groove B. The utility model discloses can realize being located seat back rear side portion with the handrail, stretch out automatically and rotate, reduce occupation space, the handrail is convenient from the shrink business turn over behind the back of the seat to rotatable keeping flat at the seat side, improved the travelling comfort.

Description

Telescopic rotating mechanism for electric handrail

Technical Field

The utility model relates to an electronic handrail is with flexible rotary mechanism.

Background

The existing automobile armrest has two forms, one is that the automobile armrest is positioned at the side part of the seat backrest and can be manually rotated, but the automobile armrest needs to be manually rotated out from the back to the front, and the automobile armrest with the form is inconvenient to use.

In another form, the automobile armrests are positioned on two sides of the seat and are fixed, and the armrests in the form are inconvenient for people to get in and out and occupy larger space.

The patent document with publication number CN211493760U relates to the technical field of electric handrails, and particularly discloses a linear telescopic structure for an electric handrail of an automobile, which comprises a base plate, a handrail member slidably arranged on the base plate, and an electric driving mechanism arranged on the base plate and used for driving the handrail member to slide; the switch piece is arranged on the handrail piece, the switch piece is electrically connected with the electric driving mechanism through the lead, the telescopic mechanism is arranged on the substrate, the lead is wound on the telescopic mechanism in an S shape, and the telescopic mechanism regulates and controls the extension or the shortening of the lead; when the handrail device is actually used, a user triggers the electric driving mechanism through the switch piece to drive the handrail piece to slide back and forth, so that the handrail piece is automatically opened or closed; in the sliding process of the handrail piece, the telescopic mechanism regulates and controls the extension or the shortening of the lead, so that the lead is prevented from being used badly due to kinking or scraping in the moving process of the handrail piece, and the service life of the lead is prolonged.

The patent document with publication number CN211493759U relates to the technical field of automobile handrails, and particularly discloses an electric handrail, which comprises a substrate, a handrail member slidably disposed on the substrate, and an electric mechanism for driving the handrail member to slide; the switch piece is arranged on the handrail piece, the control unit is arranged on the substrate, the switch piece is electrically connected with the control unit through the wire piece, the electric mechanism is electrically connected with the control unit, and the switch piece regulates and controls the electric mechanism through the control unit; the telescopic mechanism is arranged on the substrate, the wire guide piece is overlapped on the telescopic mechanism in an S shape, and the telescopic mechanism is used for regulating and controlling the elongation or the shortening of the wire guide piece; when the handrail is actually used, a user triggers the electric mechanism through the switch piece to drive the handrail piece to slide back and forth, so that the handrail piece is automatically opened or closed; in the sliding process of the handrail piece, the extension mechanism regulates and controls the extension or the shortening of the wire guide piece, so that the wire guide piece is prevented from being twisted or scratched in the moving process of the handrail piece to cause poor use, and the service life of the wire guide piece is prolonged.

The above patents are of lesser relevance to the present application.

Disclosure of Invention

The utility model aims to solve the technical problem that the inconvenient problem of traditional manual upset handrail convenience of use poor, fixed handrail occupation space, handrail business turn over that has overcome prior art existence provides an electronic flexible rotary mechanism for handrail.

In order to solve the above technical problem, the present invention adopts the following technical solution, which is described below with reference to the accompanying drawings:

it is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

A telescopic rotary mechanism for an electric handrail mainly comprises a cylindrical cam 3 with a gear, a fixed sleeve 4, a stepped hollow shaft 2, a pin A5, a pin B7 and a rotary shaft 8;

the gear-equipped cylindrical cam 3 is matched with the fixed sleeve 4, the stepped hollow shaft 2 and the fixed sleeve 4 limit other degrees of freedom of the gear-equipped cylindrical cam 3, and only the rotational degree of freedom of the gear-equipped cylindrical cam 3 is reserved;

the gear-equipped cylindrical cam 3 is provided with a modified gear and a track groove C12;

a track groove is formed in the rotating shaft 8 and is divided into two sections, namely a track groove A10 and a track groove B11 from right to left;

the pin B7 is fixed to the rotary shaft 8, and the pin B7 moves relative to the track groove C12 on the cam 3;

pin a5 is fixed to stationary sleeve 4 and pin a5 moves linearly with respect to track a10 and rotationally with respect to track B11.

Further, the telescopic rotating mechanism for the electric handrail further comprises a motor 1, and a modified gear on the motor 1 is meshed with a modified gear on a cylindrical cam 3 with a gear.

Further, the telescopic rotating mechanism for the electric handrail further comprises a stepped hollow shaft 2; the left end of the stepped hollow shaft 2 is fixed, the right end of the stepped hollow shaft 2 is matched with the left end of the cylindrical cam with the gear 3, the stepped hollow shaft 2 and the fixed sleeve 4 limit other degrees of freedom of the cylindrical cam with the gear 3 together, and only the degree of freedom of rotation of the cylindrical cam with the gear 3 is reserved.

Further, the telescopic rotating mechanism for the electric handrail further comprises a shaft sleeve 6; after the shaft sleeve 6 is assembled with the fixed sleeve 4, the rotating shaft 8 is inserted into the fixed sleeve 4.

Further, the rotating shaft 8 is inserted into the fixing sleeve 4 and into the hole of the geared cylindrical cam 3, and the pin B7 is fixed to the rotating shaft 8.

Further, the pin B7 is fixed to the rotary shaft 8 by a bolt.

Further, the fixing sleeve 4 is provided with a hole which is in interference fit with the pin a 5.

Further, the telescopic rotating mechanism for the electric handrail further comprises a handrail 9; the rotating shaft 8 is fixedly connected with the handrail 9 through assembly.

Further, the trajectory groove C12 is a resultant trajectory of the linear motion of the rotary shaft 8 and the rotational motion of the modified gear on the geared cylindrical cam 3.

The straight line of the track groove a10 is not limited in length as long as it is sufficient that the armrest be able to extend without interference during rotation, the maximum amount of extension being affected by the requirements of peripheral space and comfort.

The track of the track groove B11 is a track generated by circular motion with a certain angle around the point on the axis of the rotating shaft, and the angle depends on the maximum rotating angle of the handrail.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a flexible rotary mechanism that is used for electronic handrail of independent seat of car to use has the characteristic that a motor can realize flexible and rotatory two kinds of motions.

The utility model discloses can realize being located seat back rear side portion with the handrail, stretch out automatically and rotate, reduce occupation space, the handrail is convenient from the shrink business turn over behind the back of the seat to rotatable keeping flat at the seat side, improved the travelling comfort.

Drawings

The invention will be further described with reference to the accompanying drawings:

fig. 1 is a schematic view of the electric handrail with a retractable rotating mechanism in a folded state;

fig. 2 is a schematic view of the armrest opening and flatting state of the telescopic rotating mechanism for electric armrests according to the present invention;

fig. 3 is an exploded view of a telescopic rotating mechanism for an electric handrail according to the present invention;

FIG. 4 is a schematic view of a track groove on a rotating shaft;

1. a motor; 2. a stepped hollow shaft; 3. a cylindrical cam with gears; 4. fixing the sleeve; 5. a pin A; 6. a shaft sleeve; 7. a pin B; 8. a rotating shaft; 9. a handrail; 10. a track groove A; 11. a track groove B; 12. and a track groove C.

Detailed Description

In order to make the purpose, technical solution and advantages of the present invention clearer, the following will combine the drawings in the embodiments of the present invention to perform more detailed description on the technical solution in the embodiments of the present invention. In the drawings, the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The described embodiments are only some, but not all embodiments of the invention. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention. Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the scope of the invention.

The present invention will be described in detail with reference to the accompanying drawings:

referring to fig. 1, 2 and 3, a telescopic rotating mechanism for an electric handrail mainly comprises a motor 1, a stepped hollow shaft 2, a cylindrical cam 3 with gears, a fixed sleeve 4, a pin a5, a shaft sleeve 6, a pin B7, a rotating shaft 8 and a handrail 9.

The left end of the stepped hollow shaft 2 is fixed, the right end of the stepped hollow shaft 2 is matched with the left end of the gear-provided cylindrical cam 3, the right end of the gear-provided cylindrical cam 3 is matched with the fixed sleeve 4, the fixed sleeve 4 is fixed, the stepped hollow shaft 2 is fixed with the fixed sleeve 4, the stepped hollow shaft 2 and the fixed sleeve 4 limit other degrees of freedom of the gear-provided cylindrical cam 3 together, and only the rotational degree of freedom of the gear-provided cylindrical cam 3 is reserved.

The gear-bearing cylindrical cam 3 is characterized by a modified gear and a track groove C12, the modified gear is meshed with a modified gear of a motor for transmission, and the track groove C12 is a synthetic track of the telescopic motion of the armrest and the rotary motion of the gear.

Referring to fig. 4, the rotation shaft 8 is connected to the armrest 9 by fitting;

the rotation shaft 8 is provided with a track groove for controlling the handrail to extend and retract and rotate, and the track groove is divided into two sections, namely a track groove A10 and a track groove B11 from right to left.

The pin B7 is bolted to the rotary shaft 8 and engages with a track groove C12 on the toothed cylindrical cam 3.

The fixed sleeve 4 is provided with a hole which is in interference fit with the pin A5, and under the limiting action of the pin A5, the handrail does linear telescopic motion along the track groove A10 of the rotating shaft 8 and then does rotary motion along the track groove B11.

After the shaft sleeve 6 is assembled with the fixed sleeve 4, the rotary shaft 8 is inserted. The rotating shaft 8 is inserted into the hole of the geared cylindrical cam 3, and then the pin B7 is fixed to the rotating shaft 8 by a bolt, and the pin a5 is interference-fitted into the hole of the fixed sleeve 4.

The pin B7 is fixed to the rotary shaft 8 by a bolt, the pin B7 is used in cooperation with the track groove C of the geared cylindrical cam 3, and the pin a5 is fixed to the fixed sleeve 4 and moves in the track groove a10 and the track groove B11 of the rotary shaft 8.

Referring to fig. 1, which is a state diagram when the armrest 9 is folded, the shift gear of the geared cylindrical cam 3 is in meshing transmission with the motor shift gear, the motor 1 drives the geared cylindrical cam 3 to rotate, the pin B7 moves in the track groove C12 on the geared cylindrical cam 3, the pin a5 moves linearly to the right in the track groove a10 on the rotating shaft 8, the rotating shaft 8 moves linearly to the right, the pin B7 moves until the right end of the geared cylindrical cam 3 is limited and stopped, the linear movement of the rotating shaft 8 stops, at this time, the pin a5 rotates along the track groove B11 on the rotating shaft 8, the rotating shaft 8 starts to rotate, and the rotating shaft 8 drives the armrest to rotate. Referring to fig. 2, the armrest is schematically shown in an opened and flat state.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be covered within the protection scope of the present invention by those skilled in the art within the technical scope of the present invention. And those not described in detail in this specification are well within the skill of the art.

Claims

1. The utility model provides an electronic handrail is with flexible rotary mechanism which characterized in that: comprises a cylindrical cam (3) with a gear, a fixed sleeve (4), a stepped hollow shaft (2), a pin A (5), a pin B (7) and a rotating shaft (8);

the gear-equipped cylindrical cam (3) is matched with the fixed sleeve (4), the fixed sleeve (4) and the stepped hollow shaft (2) limit the degree of freedom of the gear-equipped cylindrical cam (3) and only keep the degree of freedom of rotation of the gear-equipped cylindrical cam (3);

the gear-equipped cylindrical cam (3) is provided with a modified gear and a track groove C (12);

a track groove is formed in the rotating shaft (8), and is divided into two sections, namely a track groove A (10) and a track groove B (11) from right to left;

a pin B (7) is fixed on the rotating shaft (8), and the pin B (7) moves relative to a track groove C (12) on the cylindrical cam (3) with the gear;

the pin A (5) is fixed on the fixed sleeve (4), and the pin A (5) moves linearly relative to the track groove A (10) and rotates relative to the track groove B (11).

2. The telescopic rotary mechanism for an electric handrail as claimed in claim 1, wherein:

the gear shifting mechanism further comprises a motor (1), and a shifting gear on the motor (1) is meshed with a shifting gear on the cylindrical cam (3) with the gear.

3. The telescopic rotary mechanism for an electric handrail as claimed in claim 1, wherein:

the left end of the stepped hollow shaft (2) is fixed, and the right end of the stepped hollow shaft (2) is matched with the left end of the cylindrical cam (3) with the gear.

4. The telescopic rotary mechanism for an electric handrail as claimed in claim 1, wherein:

also comprises a shaft sleeve (6); after the shaft sleeve (6) is assembled with the fixed sleeve (4), the rotating shaft (8) is inserted into the fixed sleeve (4).

5. The telescopic rotating mechanism for an electric handrail according to claim 4, wherein:

a rotating shaft (8) is inserted into the fixing sleeve (4) and into the hole of the geared cylindrical cam (3), and the pin B (7) is fixed to the rotating shaft (8).

6. The telescopic rotary mechanism for an electric handrail as claimed in claim 5, wherein:

the pin B (7) is fixed to the rotary shaft (8) by a bolt.

7. The telescopic rotary mechanism for an electric handrail as claimed in claim 1, wherein:

and the fixed sleeve (4) is provided with a hole which is in interference fit with the pin A (5).

8. The telescopic rotary mechanism for an electric handrail as claimed in claim 1, wherein:

also comprises a handrail (9); the rotating shaft (8) is fixedly connected with the handrail (9) through assembly.

9. The telescopic rotary mechanism for an electric handrail as claimed in claim 1, wherein:

the track groove C (12) is a synthetic track of linear motion of the rotating shaft (8) and rotary motion of the modified gear on the gear-toothed cylindrical cam (3).