CN111169340A - Height limiting mechanism of seat with airbag shock absorber - Google Patents
Height limiting mechanism of seat with airbag shock absorber Download PDFInfo
- Publication number
- CN111169340A CN111169340A CN202010131919.XA CN202010131919A CN111169340A CN 111169340 A CN111169340 A CN 111169340A CN 202010131919 A CN202010131919 A CN 202010131919A CN 111169340 A CN111169340 A CN 111169340A
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- CN
- China
- Prior art keywords
- arm
- cam
- connecting rods
- inner arm
- seat
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- 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
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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
- B60N2/50—Seat suspension devices
- B60N2/502—Seat suspension devices attached to the base of the seat
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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
- B60N2/02—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable
- B60N2/04—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable
- B60N2/16—Seats specially adapted for vehicles; Arrangement or mounting of seats in vehicles the seat or part thereof being movable, e.g. adjustable the whole seat being movable height-adjustable
-
- 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
- B60N2/50—Seat suspension devices
- B60N2/52—Seat suspension devices using fluid means
- B60N2/525—Seat suspension devices using fluid means using gas
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- Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Seats For Vehicles (AREA)
Abstract
The invention discloses a height limiting mechanism of a seat with an airbag shock absorber, which comprises a cross arm, wherein the cross arm comprises an inner arm and an outer arm which are arranged in a cross way, the crossing part of the inner arm and the outer arm is connected through a pin shaft, a limiting mechanism is arranged on the crossing arm and comprises two connecting rods, one ends of the two connecting rods are connected through the pin shaft, the other ends of the two connecting rods are respectively and movably connected with the inner arm and the outer arm, the connecting point of the connecting rods for connecting the inner arm and the outer arm is positioned at the same side of the crossing point of the inner arm and the outer arm, one end of the connection between the two connecting rods points to one side far away from the crossing point of the inner arm and the outer arm, one of the connecting rods is fixedly connected with a blocking plate, the cross arm is provided with a cam, the cam is matched with the blocking plate, the rotating center of the cam is installed on the cross arm through a pin shaft, and the cross arm is further provided with an adjusting device which controls the cam to rotate. This technical scheme is through the barrier plate to contact the cam to when the barrier plate contacts the cam, thereby come the restriction height.
Description
Technical Field
The invention relates to the technical field of commercial vehicle seats, in particular to a height limiting mechanism of a seat with an airbag shock absorber.
Background
The seat with the airbag cushion has a feature that after the driver rises up, the cushion airbag is instantaneously inflated due to the instantaneous release of the pressure, and the seat is raised to the highest position. Then, the seat is lowered to the height set by the driver before rising due to the adaptive balancing function of the shock absorber. According to investigation, a considerable part of commercial vehicle cabs are narrow in space, so that the situation that the legs of a driver are pushed to a steering wheel without lifting the seat to the maximum after the driver stands up occurs, and the comfort feeling of the driver is seriously influenced.
A height limiting mechanism suitable for a seat with an air bag shock absorber is developed so as to meet the requirement of a commercial vehicle driver on the seat.
Disclosure of Invention
The invention aims to provide a height limiting mechanism of a seat with an airbag shock absorber, which aims to solve the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme: a height limiting mechanism of a seat with an airbag shock absorber comprises a cross arm, wherein the cross arm comprises an inner arm and an outer arm, the inner arm and the outer arm are arranged in a cross mode, the cross position of the inner arm and the outer arm is connected through a pin shaft, a limiting mechanism is arranged on the cross arm and comprises two connecting rods, one ends of the two connecting rods are connected through the pin shaft, the other ends of the two connecting rods are respectively movably connected with the inner arm and the outer arm, the connecting point of the connecting rods connected with the inner arm and the outer arm is positioned on the same side of the cross point of the inner arm and the outer arm, one end of the connecting rod connected between the two connecting rods points far away from the cross point of the inner arm and the outer arm, a blocking plate is fixedly connected onto one connecting rod and faces the cross point of the inner arm and the outer arm, a cam is arranged on the cross arm and is positioned, and the cam is matched with the blocking plate, the rotation center of the cam is arranged on the cross arm through a pin shaft, when the end parts of the inner arm and the outer arm move away, one end connected between the two connecting rods is close to the cross point of the inner arm and the outer arm until the cam is contacted with the blocking plate, and the cross arm is further provided with an adjusting device which controls the cam to rotate.
Preferably, the adjusting device comprises a driven gear and a driving gear, the driven gear is fixed on one side of the cam, the driven gear is coaxially arranged with the rotation center of the cam, the driving gear is meshed with the driven gear, the driving gear is installed on the cross arm, and the driving gear is provided with a locking device.
Preferably, the locking device is an elastic plate, the elastic plate is hook-shaped, the hook-shaped end of the elastic plate is inserted between the teeth on the driving gear, the other end of the elastic plate is fixedly connected to the cross arm, the elastic plate is fixedly connected with a pull rope, and the hook-shaped end of the elastic plate can be separated from the teeth on the driving gear by pulling the pull rope.
Preferably, the adjusting device comprises a driven gear and a worm, the driven gear is fixed on one side of the cam and is coaxially arranged with the rotation center of the cam, the worm is meshed with the driven gear, and the worm is installed on the cross arm.
Preferably, the edge of the cam and the blocking plate are both scored with teeth.
Compared with the prior art, the invention has the beneficial effects that: according to the technical scheme, the height limiting mechanism of the seat with the airbag shock absorber contacts the cam through the blocking plate, and when the blocking plate contacts the cam, the shock absorber is locked, so that the height is limited. The height of the seat rising can be limited after the driver leaves the seat, thereby avoiding the seat from pushing the legs of the driver to the steering wheel.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a fragmentary view of the limiting mechanism of the present invention;
FIG. 3 is a schematic diagram of the present invention.
Reference numbers in the figures: 1 inner arm, 2 outer arms, 3 connecting rods, 4 blocking plates, 5 cams, 6 driven gears and 7 driving gears.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-3, the present invention provides a technical solution: a height limiting mechanism of a seat with an airbag shock absorber comprises a cross arm, wherein the cross arm comprises an inner arm 1 and an outer arm 2, the inner arm 1 and the outer arm 2 are arranged in a cross mode, the cross position of the inner arm 1 and the outer arm 2 is connected through a pin shaft, a limiting mechanism is arranged on the cross arm and comprises two connecting rods 3, one ends of the two connecting rods 3 are connected through the pin shaft, the other ends of the two connecting rods 3 are respectively movably connected with the inner arm 1 and the outer arm 2, the connecting point of the connecting rods 3 connected with the inner arm 1 and the outer arm 2 is located on the same side of the cross point of the inner arm 1 and the outer arm 2, one end of the two connecting rods 3 connected with each other points to one side far away from the cross point of the inner arm 1 and the outer arm 2, a blocking plate 4 is fixedly connected onto one connecting rod 3, the blocking plate 4 faces the cross point of the inner arm 1 and, the cam 5 is located between the intersection point of the inner arm 1 and the outer arm 2 and the connecting end between the two connecting rods 3, the cam 5 is matched with the blocking plate 4, the rotation center of the cam 5 is installed on the intersection arm through a pin shaft, when the end portions of the inner arm 1 and the outer arm 2 move away, one end of the cam 5 connected between the two connecting rods 3 is close to the intersection point of the inner arm 1 and the outer arm 2 until the cam 5 is in contact with the blocking plate 4, teeth are carved on the edge of the cam 5 and the blocking plate 4, and an adjusting device is further arranged on the intersection arm and controls the cam 5 to rotate.
Adjusting device includes driven gear 6 and driving gear 7, driven gear 6 is fixed in one side of cam 5, and driven gear 6 and the coaxial setting of centre of rotation of cam 5, driving gear 7 and driven gear 6 meshing, and driving gear 7 installs on the arm that crosses, install locking means on the driving gear 7. The locking device is an elastic plate, the elastic plate is hook-shaped, the hook-shaped end of the elastic plate is inserted between the teeth on the driving gear 7, the other end of the elastic plate is fixedly connected to the cross arm, the elastic plate is fixedly connected with a pull rope, and the hook-shaped end of the elastic plate can be separated from the teeth on the driving gear 7 by pulling the pull rope.
According to the technical scheme, the height limiting mechanism of the seat with the airbag shock absorber contacts the cam 5 through the blocking plate, and when the blocking plate contacts the cam 5, the shock absorber is locked, so that the height is limited. The height of the seat rising can be limited after the driver leaves the seat, thereby avoiding the seat from pushing the legs of the driver to the steering wheel.
As another embodiment, the adjusting means includes a driven gear 6 and a worm in a manner that the driven gear 6 is fixed to one side of the cam 5 and the driven gear 6 is disposed coaxially with the rotation center of the cam 5, the worm is engaged with the driven gear 6, and the worm is mounted on the cross arm. This simplifies and enables the locking device to be dispensed with.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a take limit for height mechanism of gasbag bumper shock absorber seat, includes and crosses the arm, it includes inner arm (1) and outer arm (2) to cross the arm, inner arm (1) and outer arm (2) cross arrangement, and the junction of inner arm (1) and outer arm (2) is through round pin hub connection, its characterized in that: the crossing arm is provided with a limiting mechanism, the limiting mechanism comprises two connecting rods (3), one ends of the two connecting rods (3) are connected through a pin shaft, the other ends of the two connecting rods (3) are respectively movably connected with an inner arm (1) and an outer arm (2), the connection point of the connecting rods (3) connected with the inner arm (1) and the outer arm (2) is positioned at the same side of the crossing point of the inner arm (1) and the outer arm (2), one end of the connection between the two connecting rods (3) points to one side far away from the crossing point of the inner arm (1) and the outer arm (2), one connecting rod (3) is fixedly connected with a barrier plate (4), the barrier plate (4) faces the crossing point of the inner arm (1) and the outer arm (2), the crossing arm is provided with a cam (5), and the cam (5) is positioned between the crossing point of the inner arm (1) and the outer arm (2) and the connection end between, and cam (5) and barrier plate (4) cooperation, the centre of rotation of cam (5) is installed on the arm that crosses through the round pin axle, and when the tip of inner arm (1) and outer arm (2) was done and is kept away from the motion, the one end of connecting between two connecting rods (3) was close to inner arm (1) and outer arm (2) crosspoint, until cam (5) and barrier plate (4) contact, still be provided with adjusting device on the arm that crosses, adjusting device control cam (5) rotate.
2. The height limiting mechanism of a seat with an airbag shock absorber as set forth in claim 1, wherein: adjusting device includes driven gear (6) and driving gear (7), one side at cam (5) is fixed in driven gear (6), and driven gear (6) and the coaxial setting of centre of rotation of cam (5), driving gear (7) and driven gear (6) meshing, and driving gear (7) install on the arm that crosses, install locking means on driving gear (7).
3. The height limiting mechanism of a seat with an airbag shock absorber as set forth in claim 2, characterized in that: the locking device is an elastic plate, the elastic plate is hook-shaped, the hook-shaped end of the elastic plate is inserted between the teeth on the driving gear (7), the other end of the elastic plate is fixedly connected to the cross arm, the elastic plate is fixedly connected with a pull rope, and the hook-shaped end of the elastic plate can be separated from the teeth on the driving gear (7) by pulling the pull rope.
4. The height limiting mechanism of a seat with an airbag shock absorber as set forth in claim 1, wherein: adjusting device includes driven gear (6) and worm, driven gear (6) are fixed in one side of cam (5), and driven gear (6) and the coaxial setting of centre of rotation of cam (5), the worm meshes with driven gear (6), and the worm is installed on the crossing arm.
5. The height limit mechanism of a seat with an airbag shock absorber as set forth in claims 1 to 4, characterized in that: the edge of the cam (5) and the blocking plate (4) are both provided with teeth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010131919.XA CN111169340A (en) | 2020-02-29 | 2020-02-29 | Height limiting mechanism of seat with airbag shock absorber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010131919.XA CN111169340A (en) | 2020-02-29 | 2020-02-29 | Height limiting mechanism of seat with airbag shock absorber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111169340A true CN111169340A (en) | 2020-05-19 |
Family
ID=70649651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010131919.XA Pending CN111169340A (en) | 2020-02-29 | 2020-02-29 | Height limiting mechanism of seat with airbag shock absorber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111169340A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111976556A (en) * | 2020-08-19 | 2020-11-24 | 格拉默车辆内饰（上海）有限公司 | Meshbelt braking car seat with torsional spring |
-
2020
- 2020-02-29 CN CN202010131919.XA patent/CN111169340A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111976556A (en) * | 2020-08-19 | 2020-11-24 | 格拉默车辆内饰（上海）有限公司 | Meshbelt braking car seat with torsional spring |
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