shock absorption device

Abstract

A shock-absorbing device is suitable for installation between a chair post and a seat, and includes a lower support unit, an upper support unit, a front shock-absorbing unit, and a rear shock-absorbing unit. The lower support unit is suitable for mounting at the top of the chair post. The upper support unit is suitable for mounting at the bottom of the seat and located above the lower support unit. The front shock-absorbing unit is elastically connected between the front side of the lower support unit and the front side of the upper support unit. The rear shock-absorbing unit includes a swing mechanism and an elastic mechanism. The swing mechanism is movably connected between the rear side of the lower support unit and the rear side of the upper support unit. The elastic mechanism is located in front of the swing mechanism and includes an elastic member elastically connected between the lower support unit and the upper support unit. Through the structural design of the front and rear shock-absorbing units, the shock-absorbing device achieves a small size and light weight, while also providing a stable and comfortable riding experience.

Claims

1. A shock-absorbing device suitable for installation between a chair post and a seat, comprising: a lower support unit suitable for being disposed at the top of the chair post; an upper support unit suitable for being disposed at the bottom of the seat and located above the lower support unit; a front shock-absorbing unit elastically connected between the front side of the lower support unit and the front side of the upper support unit; and a rear shock-absorbing unit including a swing mechanism and an elastic mechanism, the swing mechanism being movably connected between the rear side of the lower support unit and the rear side of the upper support unit, the elastic mechanism being located in front of the swing mechanism and including an elastic member elastically connected between the lower support unit and the upper support unit.

2. The shock absorption device as described in claim 1, wherein, The lower support unit includes two lower support rods spaced apart horizontally and extending forward and backward, a lower front seat extending horizontally and connected between the front ends of the lower support rods, a lower connecting seat spaced behind the lower front seat and connected between the lower support rods, and a lower rear seat located behind the lower connecting seat and connected between the rear ends of the lower support rods. The upper support unit includes an upper front seat spaced above the lower front seat, an upper connecting seat spaced above the lower connecting seat, and an upper rear seat connected to the rear of the upper connecting seat and spaced above the lower rear seat. The front shock absorber is disposed between the lower front seat and the upper front seat, the swing mechanism of the rear shock absorber is disposed between the lower rear seat and the upper rear seat, and the elastic mechanism is disposed between the lower connecting seat and the upper connecting seat.

3. The shock absorption device as described in claim 2, wherein, The elastic element is a compression spring that extends vertically.

4. The shock absorption device as described in claim 3, wherein, The elastic mechanism also includes a connector that positions the elastic element between the lower connector and the upper connector.

5. The shock absorption device as described in claim 4, wherein, The connector has a screw that passes through the lower connector, the elastic member and the upper connector, and a nut that is screwed to the end of the screw.

6. The shock-absorbing device as described in any one of claims 2 to 5, wherein, The swing mechanism includes a lower swing member, an upper swing member above the lower swing member and at an angle to the lower swing member, a central pivot connecting the top side of the lower swing member to the bottom side of the upper swing member, a lower pivot connecting the bottom side of the lower swing member to the lower rear seat, and an upper pivot connecting the top side of the upper swing member to the upper rear seat. The central pivot, the lower pivot, and the upper pivot are parallel to each other.

7. The shock absorption device as described in claim 6, wherein, The lower swing member of the swing mechanism has a lower inclined plate extending backward and upward, at least one lower buckle portion disposed on the bottom side of the lower inclined plate and rotatably fastened to the lower pivot, and at least one upper buckle portion disposed on the top side of the lower inclined plate and rotatably fastened to the central pivot. The upper swing member has an upper inclined plate extending forward and upward, at least one lower ring portion disposed on the bottom side of the upper inclined plate and rotatably for the central pivot to pass through, and at least one upper ring portion disposed on the top side of the upper inclined plate and rotatably for the upper pivot to pass through.

8. The shock absorption device as described in claim 6, wherein, The front damping unit includes a first damping member connected between the lower front seat and the upper front seat, and a second damping member located behind the first damping member and connected between the lower front seat and the upper front seat.

9. The shock-absorbing device as claimed in claim 8, wherein, The lower front seat has a first lower hole and a second lower hole spaced apart from each other on the left and right. The upper front seat has a first upper hole and a second upper hole spaced apart from each other on the left and right. The first shock absorber is a torsion spring and has a first winding section and two first insertion sections that protrude rearward from both ends of the first winding section and are spaced apart vertically. The first insertion sections are respectively inserted into the first upper hole and the first lower hole corresponding to the upper and lower parts. The second shock absorber is a torsion spring and has a second winding section behind the first winding section and two second insertion sections that protrude rearward from both ends of the second winding section and are spaced apart vertically. The second insertion sections are respectively inserted into the second upper hole and the second lower hole corresponding to the upper and lower parts.

10. The shock-absorbing device as claimed in claim 2, wherein the seat includes a seat cushion and a seat arch disposed at the bottom of the seat cushion, the seat arch having two mounting sections spaced apart laterally and extending forward and backward, a front insertion section connecting the front ends of the mounting sections and inserted into the front side of the bottom of the seat cushion, and two rear insertion sections respectively protruding rearward from the rear ends of the mounting sections and inserted into the rear side of the bottom of the seat cushion, wherein, The upper front seat and the upper connecting seat of the upper support unit are provided for the mounting sections of the seat bow to rest against.

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