CN116691474A - Mechanism for controlling leg support to rotate and stretch by single motor of seat - Google Patents
Mechanism for controlling leg support to rotate and stretch by single motor of seat Download PDFInfo
- Publication number
- CN116691474A CN116691474A CN202310906077.4A CN202310906077A CN116691474A CN 116691474 A CN116691474 A CN 116691474A CN 202310906077 A CN202310906077 A CN 202310906077A CN 116691474 A CN116691474 A CN 116691474A
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- CN
- China
- Prior art keywords
- connecting rod
- rotating
- telescopic
- rotary
- seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 238000005452 bending Methods 0.000 claims description 3
- 150000001875 compounds Chemical class 0.000 abstract description 2
- 230000002146 bilateral effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60N—SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR
- B60N2/00—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles
- B60N2/90—Details or parts not otherwise provided for
- B60N2/995—Lower-leg-rests, e.g. calf-rests
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/50—Supports for the feet or the legs coupled to fixed parts of the chair
- A47C7/506—Supports for the feet or the legs coupled to fixed parts of the chair of adjustable type
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/50—Supports for the feet or the legs coupled to fixed parts of the chair
- A47C7/506—Supports for the feet or the legs coupled to fixed parts of the chair of adjustable type
- A47C7/5062—Supports for the feet or the legs coupled to fixed parts of the chair of adjustable type rectilinearly
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/50—Supports for the feet or the legs coupled to fixed parts of the chair
- A47C7/506—Supports for the feet or the legs coupled to fixed parts of the chair of adjustable type
- A47C7/5066—Supports for the feet or the legs coupled to fixed parts of the chair of adjustable type by rotation
-
- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47C—CHAIRS; SOFAS; BEDS
- A47C7/00—Parts, details, or accessories of chairs or stools
- A47C7/50—Supports for the feet or the legs coupled to fixed parts of the chair
- A47C7/506—Supports for the feet or the legs coupled to fixed parts of the chair of adjustable type
- A47C7/5066—Supports for the feet or the legs coupled to fixed parts of the chair of adjustable type by rotation
- A47C7/5068—Supports for the feet or the legs coupled to fixed parts of the chair of adjustable type by rotation actuated by linkages
Landscapes
- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Chairs For Special Purposes, Such As Reclining Chairs (AREA)
Abstract
The invention discloses a mechanism for controlling rotation and extension of a leg rest by a single motor of a seat, which comprises a motor fixing bracket, a rotating arm plate, a rotating connecting rod group, a rotating body, an extension connecting rod group and an extension body, wherein the rotating connecting rod group and the extension connecting rod group are respectively designed in a bilateral symmetry manner; a driving motor is arranged in front of the motor fixing bracket and drives a screw rod of the screw rod nut mechanism to rotate, and one end of the rotating arm plate is hinged to a nut of the screw rod nut mechanism; the driving motor drives the rotating body to rotate through the rotating connecting rod group; the rotary connecting rod III is fixedly connected with the telescopic connecting rod I; the telescopic body is connected with the rotary body through the sliding assembly, and the rotary connecting rod group drives the telescopic body to slide in parallel relative to the rotary body through the telescopic connecting rod group to realize telescopic. The leg support is synchronously driven to stretch and retract through the rotary connecting rod group and the telescopic connecting rod group when the leg support rotates, so that compound motion is realized, and the maximum amplitude extension of the leg support is realized.
Description
Technical Field
The invention relates to the technical field of vehicle seats or home seats, in particular to a mechanism for controlling rotation and expansion of a leg rest by a single motor of a seat.
Background
Today, with the continuous improvement of comfort and space sense requirement of people to the seat, provide on many vehicle seats or house seat and be used for assisting to increase to the shank area of support in order to improve the travelling comfort leg support mechanism who takes, through the support to human shank, reduce shank unsettled sense to the shank discomfort that produces in the long-time driving process has been reduced, has improved the travelling comfort.
The leg support adjusting device for the seat used in the prior art is usually provided with too many motors, the space arrangement is difficult, noise decibel values caused by too many motors are out of standard, meanwhile, the motors are often fixed with the driving rod, the motors need to stretch out along with the driving rod, the occupied space of the whole leg support mechanism after stretching is large, and the leg support mechanism is relatively bulkier. The plurality of motors also can bring the problems of low power utilization rate of the motors, complex logic of the control module and the like.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention aims to provide a mechanism for realizing large-amplitude rotation by compounding various movements and controlling the rotation and the expansion of the leg rest by a single motor.
In order to solve the technical problems, the invention adopts the following technical scheme: a mechanism for controlling rotation and extension of a leg rest by a single motor of a seat comprises a motor fixing bracket, a rotating arm plate, a rotating connecting rod group, a rotating body, an extension connecting rod group and an extension body; the rotary connecting rod group consists of a rotary connecting rod I, a rotary connecting rod II, a rotary connecting rod III and a rotary connecting rod IV, and the telescopic connecting rod group consists of a telescopic connecting rod I, a telescopic connecting rod II, a telescopic connecting rod III and a telescopic connecting rod IV;
the motor fixing support is used for being installed on the seat framework, the driving motor is installed in front of the motor fixing support and drives the screw rod of the screw rod nut mechanism to rotate, and one end of the rotating arm plate is hinged to the nut of the screw rod nut mechanism; the rotating arm plate is fixedly connected with the first rotating connecting rod or the second rotating connecting rod through the first cross rod; the upper ends of the first rotating connecting rod and the second rotating connecting rod are respectively hinged with the seat framework, the lower end of the rotating connecting rod is hinged with the rear end of the third rotating connecting rod, the middle part of the second rotating connecting rod is hinged with the middle part of the third rotating connecting rod, the lower end of the second rotating connecting rod is hinged with the rear end of the fourth rotating connecting rod, and the front ends of the third rotating connecting rod and the fourth rotating connecting rod are both hinged with the rear of the rotating body, so that the driving motor drives the rotating body to rotate through the rotating connecting rod group;
the three fixed connection of rotatory connecting rod, flexible connecting rod front end is articulated with flexible connecting rod upper end two, flexible connecting rod rear end is articulated with flexible connecting rod three upper end, flexible connecting rod two lower extreme is articulated with flexible connecting rod four middle parts, flexible connecting rod three lower extreme is articulated with flexible connecting rod four rear ends, flexible connecting rod four front ends articulates the rear at flexible body, flexible body passes through sliding component with rotatory body and links to each other, and rotatory link group passes through flexible connecting rod group and drives flexible body relative rotation body parallel slip realization and stretch out and draw back.
Preferably, the second rotating connecting rod and the fourth rotating connecting rod are arranged on the inner sides of the first rotating connecting rod and the third rotating connecting rod.
Preferably, the first telescopic connecting rod is an L-shaped rod and is fixedly connected with the third rotary connecting rod through a middle bending point of the L-shaped rod.
Preferably, the telescopic body is provided with a sliding groove, and the rotary body is provided with a sliding block.
Preferably, the sliding component adopts a ball and sliding rail structure.
Preferably, the rear of the telescopic body is provided with a mounting support, and the four front ends of the telescopic connecting rods are hinged to the mounting support.
Preferably, the rotary connecting rod III is positioned at the outer side of the telescopic connecting rod I and is fixedly connected with the telescopic connecting rod I through the cross rod II.
Preferably, the third rotary connecting rod is welded and fixed with the first telescopic connecting rod, the rotating arm plate is welded and fixed with the first cross rod, and the first cross rod is welded and fixed with the first rotary connecting rod or the second rotary connecting rod.
Preferably, the rotary connecting rod groups and the telescopic connecting rod groups are symmetrically designed by taking the rotary arm plate as a central line.
The invention has the beneficial effects that:
1) The rotary connecting rod group and the telescopic connecting rod group synchronously drive the leg support to stretch and retract when the leg support rotates so as to realize compound movement and maximum extension of the leg support;
2) The mechanism can also meet the requirements of longer telescopic travel and any telescopic speed of the leg rest by adjusting the length proportion of the connecting rod and the hinge;
3) The single motor is adopted, so that noise decibel values in the using process of the leg rest are reduced, meanwhile, the control logic of the seat control module can be simplified, and the power utilization rate of the leg rest rotating motor is improved.
Drawings
FIG. 1 is a schematic view of a folded state of the present invention;
FIG. 2 is a schematic diagram of the folded state of the present invention;
FIG. 3 is a schematic view of the invention in an extended state;
FIG. 4 is a schematic diagram of the invention in an extended state;
FIG. 5 is a schematic view illustrating the disassembly of the present invention;
FIG. 6 is a schematic perspective view of the present invention;
FIG. 7 is a schematic diagram of the fixed connection of the third rotary link to the first telescopic link;
FIG. 8 is a schematic diagram of a connection between a third rotary link and a left end of a telescopic link;
FIG. 9 is a schematic diagram of a connection between a third rotary link and a right end of a telescopic link;
in the figure: 1-a motor fixing bracket; 2-a rotating arm plate; 3-rotating the first connecting rod; 4-rotating a second connecting rod; 5-rotating a connecting rod III; 6-rotating a connecting rod IV; 7-rotating the body; 8-a first telescopic connecting rod; 9-a second telescopic connecting rod; 10-a telescopic connecting rod III; 11-a telescopic connecting rod IV; 12-mounting a support; 13-telescoping body; 14-a slider; 15-driving a motor; 16-screw rod; 17-nut; 18-first cross bar; 19-second cross bar.
Detailed Description
For a better understanding of the improvements of the present invention with respect to the prior art, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments.
In the drawings, 1-9, R represents the right side of the invention and L represents the left side of the invention. A mechanism for controlling the rotation and the extension of a leg support by a single motor of a seat mainly comprises a motor fixing bracket 1, a rotating arm plate 2, a rotating connecting rod group and a rotating body 7.
The rotary connecting rod group consists of a first rotary connecting rod 3, a second rotary connecting rod 4, a third rotary connecting rod 5 and a fourth rotary connecting rod 6, and the telescopic connecting rod group consists of a first telescopic connecting rod 8, a second telescopic connecting rod 9, a third telescopic connecting rod 10 and a fourth telescopic connecting rod 11.
The motor fixing support 1 is used for being installed on a seat framework, a driving motor 15 is installed in front of the motor fixing support 1, and the driving motor 15 drives a screw rod 16 of the screw rod nut mechanism to rotate. One end of the rotating arm plate 2 is hinged on a nut 17 of the screw-nut mechanism.
The rotating arm plate 2 is fixedly connected with the rotating connecting rod two 4 through the cross rod one 18 (as shown in fig. 2), or the rotating arm plate 2 is fixedly connected with the rotating connecting rod one 3 through the cross rod one 18. The upper ends of the first rotating connecting rod 3 and the second rotating connecting rod 4 are respectively hinged with the seat framework. The lower end of the first rotary connecting rod 3 is hinged with the rear end of the third rotary connecting rod 5, and the middle part of the second rotary connecting rod 4 is hinged with the middle part of the third rotary connecting rod 5. The lower end of the second rotary connecting rod 4 is hinged with the rear end of the fourth rotary connecting rod 6. The front ends of the rotary connecting rod III 5 and the rotary connecting rod IV 6 are hinged with the rear of the rotary body 7, so that the rotary body 7 is driven to rotate by the driving motor 15 through the rotary connecting rod group.
The rotary connecting rod group is connected with the telescopic connecting rod group through the fixed connection of the rotary connecting rod III 5 and the telescopic connecting rod I8. The front end of the first telescopic connecting rod 8 is hinged with the upper end of the second telescopic connecting rod 9, and the rear end of the first telescopic connecting rod 8 is hinged with the upper end of the third telescopic connecting rod 10. The lower end of the second telescopic connecting rod 9 is hinged with the middle part of the fourth telescopic connecting rod 11, and the lower end of the third telescopic connecting rod 10 is hinged with the rear end of the fourth telescopic connecting rod 11. The front end of the telescopic connecting rod IV 11 is hinged at the rear of the telescopic body 13. The telescopic body 13 is connected with the rotary body 7 through a sliding component, and the rotary connecting rod group drives the telescopic body 13 to slide in parallel relative to the rotary body 7 through the telescopic connecting rod group to realize telescopic.
Preferably, the second rotary link 4 and the fourth rotary link 6 are disposed inside the first rotary link 3 and the third rotary link 5.
Preferably, the first telescopic link 8 is an L-shaped rod and is fixedly connected with the third rotary link 5 through a middle bending point of the L-shaped rod, as shown in fig. 7, or the left and right ends of the first telescopic link 8 are fixedly connected with the third rotary link 5, as shown in fig. 8 and 9. Meanwhile, the rotary connecting rod III 5 is positioned at the outer side of the telescopic connecting rod I8 and is fixedly connected with the telescopic connecting rod I through the cross rod II 19.
Preferably, the telescopic body 13 is provided with a sliding groove, the rotary body 7 is provided with a sliding block 14, and the sliding component can also adopt a ball and sliding rail structure.
Preferably, the third rotary connecting rod 5 is welded and fixed with the first telescopic connecting rod 8, the rotating arm plate 2 is welded and fixed with the first cross rod 18, and the first cross rod 18 is welded and fixed with the first rotary connecting rod 3 or the second rotary connecting rod 4.
Preferably, the driving motor 15, the motor fixing support 1 and the rotating arm plate 2 are arranged in the middle, the telescopic connecting rod group and the telescopic body 13 are symmetrically designed left and right by taking the rotating arm plate 2 as a central line, and the width of a mechanism required by controlling and driving the leg support to rotate and stretch is met.
In order to facilitate connection, a mounting support 12 is arranged at the rear of the telescopic body 13, and the front ends of the four telescopic connecting rods 11 are hinged to the mounting support 12.
The foregoing is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art, who is within the scope of the present invention, should make equivalent substitutions or modifications according to the technical scheme of the present invention and the inventive concept thereof, and should be covered by the scope of the present invention.
Claims (9)
1. The utility model provides a rotatory and flexible mechanism of seat single motor control leg holds in palm which characterized in that: comprises a motor fixing bracket (1), a rotating arm plate (2), a rotating connecting rod group, a rotating body (7), a telescopic connecting rod group and a telescopic body (13); the rotary connecting rod group consists of a first rotary connecting rod (3), a second rotary connecting rod (4), a third rotary connecting rod (5) and a fourth rotary connecting rod (6), and the telescopic connecting rod group consists of a first telescopic connecting rod (8), a second telescopic connecting rod (9), a third telescopic connecting rod (10) and a fourth telescopic connecting rod (11);
the motor fixing support (1) is used for being installed on a seat framework, a driving motor (15) is installed in front of the motor fixing support (1), the driving motor (15) drives a screw rod (16) of a screw rod nut mechanism to rotate, and one end of the rotating arm plate (2) is hinged to a nut (17) of the screw rod nut mechanism; the rotating arm plate (2) is fixedly connected with the first rotating connecting rod (3) or the second rotating connecting rod (4) through a first transverse rod (18); the upper ends of the first rotating connecting rod (3) and the second rotating connecting rod (4) are respectively hinged with the seat framework, the lower end of the first rotating connecting rod (3) is hinged with the rear end of the third rotating connecting rod (5), the middle part of the second rotating connecting rod (4) is hinged with the middle part of the third rotating connecting rod (5), the lower end of the second rotating connecting rod (4) is hinged with the rear end of the fourth rotating connecting rod (6), and the front ends of the third rotating connecting rod (5) and the fourth rotating connecting rod (6) are both hinged with the rear of the rotating body (7), so that the driving motor (15) drives the rotating body (7) to rotate through the rotating connecting rod group;
the three (5) and the first (8) fixed connection of flexible connecting rod, flexible connecting rod one (8) front end is articulated with the upper end of flexible connecting rod two (9), and flexible connecting rod one (8) rear end is articulated with the upper end of flexible connecting rod three (10), flexible connecting rod two (9) lower extreme is articulated with flexible connecting rod four (11) middle part, flexible connecting rod three (10) lower extreme is articulated with flexible connecting rod four (11) rear end, flexible connecting rod four (11) front end articulates the rear at flexible body (13), flexible body (13) link to each other through slip subassembly with rotatory body (7), and flexible connecting rod group drives flexible body (13) relative rotation body (7) parallel slip through rotatory connecting rod group and realizes stretching out and drawing back.
2. The mechanism for controlling rotation and extension of a leg rest of a seat with a single motor as set forth in claim 1 wherein: the second rotating connecting rod (4) and the fourth rotating connecting rod (6) are arranged on the inner sides of the first rotating connecting rod (3) and the third rotating connecting rod (5).
3. The mechanism for controlling rotation and extension of a leg rest of a seat with a single motor as set forth in claim 1 wherein: the first telescopic connecting rod (8) is an L-shaped rod and is fixedly connected with the third rotary connecting rod (5) through a middle bending point of the L-shaped rod.
4. The mechanism for controlling rotation and extension of a leg rest of a seat with a single motor as set forth in claim 1 wherein: a sliding groove is formed in the telescopic body (13), and a sliding block (14) is arranged on the rotary body (7).
5. The mechanism for controlling rotation and extension of a leg rest of a seat with a single motor as set forth in claim 1 wherein: the sliding component adopts a ball and sliding rail structure.
6. The mechanism for controlling rotation and extension of a leg rest of a seat with a single motor as set forth in claim 1 wherein: the rear of the telescopic body (13) is provided with a mounting support (12), and the front end of the telescopic connecting rod IV (11) is hinged on the mounting support (12).
7. The mechanism for controlling rotation and extension of a leg rest of a seat with a single motor as set forth in claim 1 wherein: the rotary connecting rod III (5) is positioned at the outer side of the telescopic connecting rod I (8) and is fixedly connected with the telescopic connecting rod I through the transverse rod II (19).
8. The mechanism for controlling rotation and extension of a leg rest of a seat with a single motor as set forth in claim 1 wherein: the rotary connecting rod III (5) is welded and fixed with the telescopic connecting rod I (8), the rotary arm plate (2) is welded and fixed with the transverse rod I (18), and the transverse rod I (18) is welded and fixed with the rotary connecting rod I (3) or the rotary connecting rod II (4).
9. The mechanism for controlling rotation and extension of a leg rest of a seat with a single motor as set forth in claim 1 wherein: the rotary connecting rod groups and the telescopic connecting rod groups are symmetrically designed to be four by taking the rotary arm plate (2) as a central line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310906077.4A CN116691474A (en) | 2023-07-24 | 2023-07-24 | Mechanism for controlling leg support to rotate and stretch by single motor of seat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310906077.4A CN116691474A (en) | 2023-07-24 | 2023-07-24 | Mechanism for controlling leg support to rotate and stretch by single motor of seat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN116691474A true CN116691474A (en) | 2023-09-05 |
Family
ID=87841685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202310906077.4A Pending CN116691474A (en) | 2023-07-24 | 2023-07-24 | Mechanism for controlling leg support to rotate and stretch by single motor of seat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN116691474A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117850126A (en) * | 2024-03-04 | 2024-04-09 | 杭州方千科技有限公司 | Telescopic and rotary switching mechanism and xenon explosion flash light supplementing device |
-
2023
- 2023-07-24 CN CN202310906077.4A patent/CN116691474A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117850126A (en) * | 2024-03-04 | 2024-04-09 | 杭州方千科技有限公司 | Telescopic and rotary switching mechanism and xenon explosion flash light supplementing device |
| CN117850126B (en) * | 2024-03-04 | 2024-05-10 | 杭州方千科技有限公司 | Telescopic and rotary switching mechanism and xenon explosion flash light supplementing device |
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