U.S. patent application number 15/265529 was filed with the patent office on 2018-03-15 for shock absorber.
The applicant listed for this patent is JIHSHYH INTERNATIONAL CO., LTD.. Invention is credited to Wei-Li LIN.
Application Number | 20180072124 15/265529 |
Document ID | / |
Family ID | 61526253 |
Filed Date | 2018-03-15 |
United States Patent
Application |
20180072124 |
Kind Code |
A1 |
LIN; Wei-Li |
March 15, 2018 |
SHOCK ABSORBER
Abstract
A shock absorber is provided, including a base, a first axial
tube, a second axial tube, a buffering structure and an abutting
assembly. The base defines an axial direction, and the base has a
through hole radially. An exterior circumferential wall of the
first axial tube has a recess formed radially and near a first end
of the base, and the first axial tube is screwed with the base. The
abutting assembly includes an abutting member and an elastic
abutting member, the abutting member is disposed within the through
hole, the elastic abutting member is disposed on the base and at
least partly located in the through hole so as to abut the abutting
member to move toward the base normally.
Inventors: |
LIN; Wei-Li; (Taichung City,
TW) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
JIHSHYH INTERNATIONAL CO., LTD. |
Taichung City |
|
TW |
|
|
Family ID: |
61526253 |
Appl. No.: |
15/265529 |
Filed: |
September 14, 2016 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
B60G 15/063 20130101;
F16F 1/121 20130101; F16F 9/56 20130101; B60G 17/021 20130101; B60G
2204/1242 20130101 |
International
Class: |
B60G 15/06 20060101
B60G015/06; F16F 13/00 20060101 F16F013/00; B60G 17/02 20060101
B60G017/02; B60G 17/08 20060101 B60G017/08 |
Claims
1. A shock absorber, including: a base, defining an axial
direction, the base having a through hole radially; a first axial
tube, an exterior circumferential wall of the first axial tube
having a recess formed radially and near a first end of the base,
the first axial tube screwed with the base; a second axial tube,
disposed through the first axial tube along the axial direction and
slidable relative to the first axial tube, the second axial tube
having an assembling portion; a buffering structure, including an
elastic member and an adjusting ring, the adjusting ring being
sleeved on the first axial tube and movable relative to the first
axial tube, the elastic member abutting against and between the
assembling portion and the adjusting ring; an abutting assembly,
including an abutting member and an elastic abutting member, the
abutting member being disposed within the through hole, the elastic
abutting member being disposed on the base and at least partly
located in the through hole so as to abut the abutting member to
move toward the base normally; wherein the recess intercrosses with
only one single thread of the first axial tube, along a rotation
direction of the first axial tube two ends of the recess face crest
and root of the one single thread of the first axial tube
respectively; one of the two ends of the recess has a first
inclined face, another of the two ends has a second inclined face,
the first inclined face is greater than the second inclined face in
gradient, the second inclined face extends circumferentially from a
bottom side of the first inclined face so that the depth of the
recess decreases from the bottom side of the first inclined face to
a side of the second inclined face away from the bottom side of the
first inclined face; wherein when the first axial tube rotates
relative to the base and the abutting member corresponds to the
recess, the abutting member is restrictably engaged within the
recess.
2. The shock absorber of claim 1, wherein the elastic abutting
member is an elastic annular piece, and the elastic abutting member
is detachably arranged on an exterior circumferential wall of the
base so as to abut the abutting member to move toward the base
normally.
3. The shock absorber of claim 2, further including a
position-restricting ring, the position-restricting ring being
sleeved on the first axial tube and screwed with the first axial
tube, the position-restricting ring abutting against an end face of
the base along the axial direction; further including a positioning
ring, the positioning ring and the adjusting ring screwed with the
first axial tube, the positioning ring located on a side of the
adjusting ring opposite to the elastic member and abutting against
the adjusting ring.
4. The shock absorber of claim 2, wherein the elastic abutting
member is an elastic metal annular piece which is C-shaped, two
opposite ends of an inner side of the elastic abutting member
respectively have a protrusion, one of the two protrusions
restrictably abuts against a periphery of the through hole and
abuts against the abutting member, and the other of the two
protrusions abuts against a recessed hole of the exterior
circumferential wall of the base.
5. The shock absorber of claim 4, wherein the abutting member is a
ball member, one of two ends of a rotation direction of the recess
along the first axial rube has a first inclined face, the other of
the two ends has a second inclined face, and the first inclined
face and the second inclined face have different gradients.
6. The shock absorber of claim 2, wherein the abutting member is a
ball member, and a radial dimension of the abutting member is
greater than a greatest depth of the recess.
7. The shock absorber of claim 6, wherein the exterior
circumferential wall of the first axial tube has a scale which
extends along the axial direction, and a distance between an
initial scale of the scale and the first end of the first axial
tube is 20 mm to 40 mm.
8. The shock absorber of claim 7, wherein a position of the recess
is between the initial scale of the scale and the first end of the
first axial tube.
9. The shock absorber of claim 8, further including a
position-restricting ring, the position-restricting ring being
sleeved on the first axial tube and screwed with the first axial
tube, the position-restricting ring abutting against an end face of
the base along the axial direction; further including a positioning
ring, the positioning ring and the adjusting ring screwed with the
first axial tube, the positioning ring located on a side of the
adjusting ring opposite to the elastic member and abutting against
the adjusting ring; the elastic abutting member being an elastic
metal annular piece which is C-shaped, two opposite ends of an
inner side of the elastic abutting member respectively having a
protrusion, one of the two protrusions restrictably abutting
against a periphery of the through hole and abutting against the
abutting member, and the other of the two protrusions abutting
against a recessed hole of the exterior circumferential wall of the
base; the abutting member being a ball member, one of two ends of a
rotation direction of the recess along the first axial rube having
a first inclined face, the other of the two ends having a second
inclined face; the first inclined face and the second inclined face
having different gradients.
10. The shock absorber of claim 1, wherein the elastic abutting
member includes a spring and a pin member, the pin member is hollow
and tubular and disposed in the through hole, the spring and the
abutting member are located in the pin member, and the spring
elastically abuts against and between the pin member and the
abutting member so as to abut the abutting member to move toward
the base.
Description
BACKGROUND OF THE INVENTION
Field of the Invention
[0001] The present invention relates to a shock absorber, and more
particularly to a shock absorber which is anti-detachment.
Description of the Prior Art
[0002] A conventional shock absorber for a vehicle as disclosed in
TWM392765 includes a base, a fixed axial tube and a movable axial
tube. The fixed axial tube is screwed with the base, the movable
axial tube is disposed in the fixed axial tube and reciprocatable
along an axial direction, and through the fixed axial tube and the
base rotate relative to each other, a length of the shock absorber
can be adjusted in accordance with different types of vehicles. To
prevent the fixed axial tube from rotating too much and being
detached from the base, a lower position-restricting ring of the
conventional shock absorber which is screwed with the fixed axial
tube has a through hole, a ball member, an elastic member and a
fixing pin member are disposed in the through hole, and a lower end
of the fixed axial tube has an annular groove. Therefore, when the
fixed axial tube is rotated to make the ball member restrictably
engaged within the annular groove, a user can be reminded that if
s/he continues to rotate the fixed axial tube, the fixed axial tube
will be detached from the base.
[0003] However, in the conventional shock absorber, the lower
position-restricting ring is screwed with the fixed axial tube, so
the user needs to grip on the fixed axial tube with one hand and
grips on the lower position-restricting ring with the other hand so
as to position the lower position-restricting ring on an end of the
base to prevent the lower position-restricting ring and the fixed
axial tube from moving relative to each other. Hence, the
conventional shock absorber is inconvenient to be operated. In
addition, the lower position-restricting ring is screwed with the
fixed axial tube but not integrally connected to the base, so a
distance between the lower position-restricting ring and the base
may vary. The ball member being restrictably engaged in the annular
groove does not mean that the fixed axial tube is about to be
detached from the base, so a reminding function may have an
error.
[0004] The present invention has arisen to mitigate and/or obviate
the afore-described disadvantages.
SUMMARY OF THE INVENTION
[0005] The major object of the present invention is to provide a
shock absorber, the shock absorber includes an abutting assembly
which can effectively remind a user that a first axial tube is
about to be detached from a base. In addition, the abutting
assembly is easy to be assembled or disassembled and has a simple
structure.
[0006] To achieve the above and other objects, a shock absorber is
provided, including a base, a first axial tube, a second axial
tube, a buffering structure and an abutting assembly. The base
defines an axial direction, and the base has a through hole
radially. An exterior circumferential wall of the first axial tube
has a recess formed radially and near a first end of the base, and
the first axial tube is screwed with the base. The second axial
tube is disposed through the first axial tube along the axial
direction and slidable relative to the first axial tube, and the
second axial tube has an assembling portion. The buffering
structure includes an elastic member and an adjusting ring, the
adjusting ring is sleeved on the first axial tube and movable
relative to the first axial tube, and the elastic member abuts
against and between the assembling portion and the adjusting ring.
The abutting assembly includes an abutting member and an elastic
abutting member, the abutting member is disposed within the through
hole, the elastic abutting member is disposed on the base and at
least partly located in the through hole so as to abut the abutting
member to move toward the base normally. When the first axial tube
rotates relative to the base and the abutting member corresponds to
the recess, the abutting member is restrictably engaged within the
recess.
[0007] The present invention will become more obvious from the
following description when taken in connection with the
accompanying drawings, which show, for purpose of illustrations
only, the preferred embodiment(s) in accordance with the present
invention.
BRIEF DESCRIPTION OF THE DRAWINGS
[0008] FIG. 1 is a stereogram of a preferred embodiment of the
present invention;
[0009] FIG. 2 is a breakdown view of the preferred embodiment of
the present invention;
[0010] FIG. 3 is a partially-enlarged view of the preferred
embodiment of the present invention;
[0011] FIG. 4 is a cross-sectional view, taken along line A-A of
FIG. 2;
[0012] FIG. 5 is a side view of the preferred embodiment of the
present invention;
[0013] FIGS. 6 and 7 are cross-sectional views, taken along line
B-B of FIG. 5, showing operation of the present invention;
[0014] FIG. 8 is a cross-sectional top view of another preferred
embodiment of the present invention; and
[0015] FIGS. 9 and 10 are enlarged cross-sectional view showing
another preferred embodiment of the present invention in
operation.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0016] The present invention will be clearer from the following
description when viewed together with the accompanying drawings,
which show, for purpose of illustrations only, the preferred
embodiment in accordance with the present invention.
[0017] Please refer to FIGS. 1 to 7 for a preferred embodiment of
the present invention. A shock absorber includes a base 1, a first
axial tube 2, a second axial tube 3, a buffering structure 4 and an
abutting assembly 5.
[0018] The base 1 defines an axial direction 11, and the base 1 has
a through hole 12 radially.
[0019] An exterior circumferential wall of the first axial tube 2
has a recess 21 radially near a first end 22 of the base 1, and the
first axial tube 2 is screwed with the base 1.
[0020] The second axial tube 3 is disposed through the first axial
tube 2 along the axial direction 11 and slidable relative to the
first axial tube 2, and the second axial tube 3 has an assembling
portion 31. In this embodiment, the assembling portion 31 is for
being assembled to a chassis of a vehicle, and the base 1 is for
being assembled to a wheel seat of the vehicle. In other
embodiments, the assembling portion 31 is for being assembled to
the wheel seat of the vehicle, and the base 1 is for being
assembled to the chassis of the vehicle.
[0021] The buffering structure 4 includes an elastic member 41 and
an adjusting ring 42, the adjusting ring 42 is sleeved on the first
axial tube 2 and movable relative to the first axial tube 2, and
the elastic member 41 abuts against and between the assembling
portion 31 and the adjusting ring 42. In this embodiment, the
adjusting ring 42 is screwed with the first axial tube 2, and a
user can rotate the adjusting ring 42 to adjust a tightness of the
elastic member 41 in accordance with a driving requirement of the
vehicle.
[0022] The abutting assembly 5 includes an abutting member 51 and
an elastic abutting member 52, the abutting member 51 is disposed
within the through hole 12, and the elastic abutting member 52 is
disposed on the base 1 and at least partly located in the through
hole 12 so as to abut the abutting member 51 to move toward the
base 1 normally.
[0023] When the first axial tube 2 rotates relative to the base 1,
and the abutting member 51 corresponds to the recess 21, the
abutting member 51 is restrictably engaged within the recess 21.
When the abutting member 51 abuts against a wall of the recess 21,
the abutting member 51 clanks (as shown in FIG. 7) so as to inform
the user than if s/he continues to rotate the first axial tube 2 to
move away from the base 1, the first axial tube 2 will be detached
from the base 1.
[0024] Specifically, in this embodiment, the elastic abutting
member 52 is an elastic annular piece 522, and the elastic abutting
member 52 is detachably arranged on an exterior circumferential
wall of the base 1 so as to abut the abutting member 51 to move
toward the base 1 normally.
[0025] Preferably, the shock absorber further includes a
position-restricting ring 61 and a positioning ring 62, the
position-restricting ring 61 is sleeved on the first axial tube 2
and screwed with the first axial tube 2, and the
position-restricting ring 61 abuts against an end face of the base
1 along the axial direction 11 to fix the first axial tube 2 so as
to prevent the first axial tube 2 and the base 1 from rotating
randomly relative to each other when the vehicle is driven. The
positioning ring 62 and the adjusting ring 42 are screwed with the
first axial tube 2, the positioning ring 62 is located on a side of
the adjusting ring 42 opposite to the elastic member 41 and abuts
the adjusting ring 2 to fix the adjusting ring 42 so as to prevent
the adjusting ring 42 and the first axial tube 2 from rotating
randomly relative to each other when the vehicle is driven.
[0026] Specifically, the elastic abutting member 52 is an elastic
metal annular piece which is C-shaped, two opposite ends of an
inner side of the elastic abutting member 52 respectively have a
protrusion 521, one of the two protrusions 521 restrictably abuts
against a periphery of the through hole 12 and abuts against the
abutting member 51, the other of the two protrusions 521 abuts
against a recessed hole 13 of the exterior circumferential wall of
the base 1, and through the two protrusions 521 respectively
abutting against the recessed hole 13 and the through hole 12, the
elastic abutting member 52 can be fixed on the base 1. In addition,
in this embodiment, when one of the two protrusions 521 abuts
against the periphery of the through hole 12 and abuts against the
abutting member 51, and an end of the elastic abutting member 52
near the recess 21 is bent upward slightly (as shown in FIG. 6), so
it is convenient to disassemble the elastic abutting member 52.
Therefore, it is convenient for the user to assemble or disassemble
the abutting member 51 and the elastic abutting member 52, and when
the abutting member 51 elastically abuts against the wall of the
recess 21, the abutting member 51 clanks to let the user know that
if s/he continues to rotate the first axial tube 2 to move away
from the base 1, the first axial tube 2 will be detached from the
base 1.
[0027] In this embodiment, the abutting member 51 is a ball member,
one of two ends of a rotation direction of the recess 21 along the
first axial rube 2 has a first inclined face 211, and the other of
the two ends has a second inclined face 212. The first inclined
face 211 and the second inclined face 212 have different gradients,
and in this embodiment, the first inclined face 211 is greater than
the second inclined face 212 in gradient. When the abutting member
51 abuts against the recess 21, and the first axial tube 2 rotates
to move away from the base 1 (that is, to rotate counterclockwise),
the abutting member 51 abuts against the first inclined face 211
and uneasy to be detached from the recess 21, and the user needs to
apply greater force to rotate the first axial tube 2 to make the
abutting member 51 slide out of the recess 21 so as to remind the
user that the first axial tube 2 is about to be detached from the
base 1. Preferably, a radial dimension of the abutting member 51 is
greater than a greatest depth of the recess 21, and when the
abutting member 51 abuts against the recess 21, the abutting member
51 partly protrudes beyond the recess 21.
[0028] In addition, the exterior circumferential wall of the first
axial tube 2 has a scale 24 which extends along the axial direction
11. Preferably, a distance between an initial scale 241 of the
scale 24 and the first end 22 of the first axial tube 2 is 20 mm to
40 mm, and in this embodiment, the distance is 30 mm, and the
recess 21 is between the initial scale 241 of the scale 24 and the
first end 22 of the first axial tube 2. The initial scale 241 is
for the user to adjust a datum and can ensure that the first axial
tube 2 is at least partly screwed with the base 1 so as to prevent
the first axial tube 2 and the base 1 from swinging relative to
each other due to unstable screwing.
[0029] In this embodiment, the exterior circumferential wall of the
first axial tube 2 has two cutting sections 23 opposite to each
other, the two cutting sections 23 extend along the axial direction
11, one of the two cutting sections 23 has the scale 24 which
extends along the axial direction 11, the scale 24 is provided as a
reference for the user to refer to when adjusting a height of a
chassis so as to adjust the shock absorbers of the vehicle to reach
a balance to keep the chassis of the vehicle stable.
[0030] Please refer to FIGS. 8 to 10 for a second embodiment of the
present invention. An elastic abutting member 52A includes a spring
523 and a pin member 524, the pin member 524 is hollow and tubular
and disposed in the through hole, the spring 523 and the abutting
member 51 are located in the pin member 524, and the spring 523
elastically abuts against and between the pin member 524 and the
abutting member 51 so as to abut the abutting member 51 to move
toward the base 1. Specifically, in this embodiment, the pin member
524 is screwed within the through hole (in other embodiments, the
pin member 524 may be tightly fit into the through hole) so to be
easily disassembled. Through the pin member 524 being engaged
within the through hole and the spring 523 abutting the abutting
member 51 to move toward the base 1, the abutting member 51 can
effectively abut against the recess 21 so as to remind the user
that the first axial tube 2 is about to be detached from the base
1.
[0031] Given the above, in the shock absorber, it is convenient to
assemble/disassemble the abutting member and the elastic abutting
member, and when the abutting member abuts against the wall of the
recess, the abutting member clanks so as to inform the user that if
s/he continues to rotate the first axial tube to move away from the
base, the first axial tube will be detached from the base.
[0032] While we have shown and described various embodiments in
accordance with the present invention, it should be clear to those
skilled in the art that further embodiments may be made without
departing from the scope of the present invention.
* * * * *