Shock absorber

Patent metadata

Field	Value
Publication number	US-11149815-B2
Application number	US-202016799450-A
Country	US
Kind code	B2
Filing date	Feb 24, 2020
Priority date	Oct 31, 2017
Publication date	Oct 19, 2021
Grant date	Oct 19, 2021

Abstract

A shock absorber includes a hollow rod, a suspension spring arranged outside the hollow rod, a spring receiver arranged to be displaceable with respect to the hollow rod and receiving a load of the suspension spring, an adjusting screw inserted into one end side of the hollow rod and configured to adjust a position of the suspension spring by restricting movement of the spring receiver to the one end side, and a shaft member which transmits a load received by the spring receiver to the adjusting screw inside the hollow rod. An insertion portion which extends in an axial direction of the hollow rod and into which the shaft member is inserted is provided on a side surface of the hollow rod.

First claim

The invention claimed is:

1. A shock absorber, comprising:
a hollow rod;
a suspension spring arranged outside the hollow rod;
a spring receiver arranged to be displaceable with respect to the hollow rod and receiving a load of the suspension spring;
an adjusting screw inserted into one end side of the hollow rod and configured to adjust a position of the suspension spring by restricting movement of the spring receiver to the one end side; and
a shaft member which transmits a load received by the spring receiver to the adjusting screw inside the hollow rod, wherein
an insertion portion which extends in an axial direction of the hollow rod and into which the shaft member is inserted is provided on a side surface of the hollow rod,
a nut configured to fix a relative position of the hollow rod to a shock absorber body is further provided, and
the nut is disposed closer to the one end side than the spring receiver.

2. The shock absorber according to claim 1 , wherein
the insertion portion is an opening portion having a closed contour.

3. The shock absorber according to claim 2 , further comprising:
a cylinder arranged outside the suspension spring; and
a cap member which is disposed in an opening portion on one end side of the cylinder and into which the hollow rod is inserted.

4. The shock absorber according to claim 3 , further comprising:
a spring collar arranged between the spring receiver and the suspension spring.

5. The shock absorber according to claim 3 , wherein
at least a part of one end side of the adjusting screw is disposed inside the cap member, and
the cap member has an operation portion which rotates the adjusting screw.

6. The shock absorber according to claim 2 , further comprising:
a spring collar arranged between the spring receiver and the suspension spring.

7. The shock absorber according to claim 1 , further comprising:
a cylinder arranged outside the suspension spring; and
a cap member which is disposed in an opening portion on one end side of the cylinder and into which the hollow rod is inserted.

8. The shock absorber according to claim 7 , wherein
at least a part of one end side of the adjusting screw is disposed inside the cap member, and
the cap member has an operation portion which rotates the adjusting screw.

9. A shock absorber, comprising:
a hollow rod;
a suspension spring arranged outside the hollow rod;
a spring receiver arranged to be displaceable with respect to the hollow rod and receiving a load of the suspension spring;
an adjusting screw inserted into one end side of the hollow rod and configured to adjust a position of the suspension spring by restricting movement of the spring receiver to the one end side; and
a shaft member which transmits a load received by the spring receiver to the adjusting screw inside the hollow rod, wherein
an insertion portion which extends in an axial direction of the hollow rod and into which the shaft member is inserted is provided on a side surface of the hollow rod, and the shaft member is detachable from the spring receiver.

10. The shock absorber according to claim 1 , further comprising:
a spring collar arranged between the spring receiver and the suspension spring.

11. The shock absorber according to claim 7 , further comprising:
a spring collar arranged between the spring receiver and the suspension spring.

Assignees

• Showa Corp

Inventors

• Kuroiwa Naoya
• Fujikawa Yosuke
• Murakami Yosuke

Classifications

• F16F9/182

  comprising a hollow piston rod · CPC title

• B62K25/04

  for mounting axles resiliently on cycle frame or fork (for sidecars, forecars or the like B62K27/06) · CPC title

• B60G17/021

  the mechanical spring being a coil spring (B60G17/0272 takes precedence) · CPC title

• B60G2500/20

  Spring action or springs · CPC title

• F16F1/121

  adjustable, e.g. to modify spring characteristics · CPC title