CN100506576C - Shock-absorbing type caster - Google Patents
Shock-absorbing type caster Download PDFInfo
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- CN100506576C CN100506576C CNB200610138495XA CN200610138495A CN100506576C CN 100506576 C CN100506576 C CN 100506576C CN B200610138495X A CNB200610138495X A CN B200610138495XA CN 200610138495 A CN200610138495 A CN 200610138495A CN 100506576 C CN100506576 C CN 100506576C
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- pad
- transmission arm
- frame
- shock
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B33/00—Castors in general; Anti-clogging castors
- B60B33/04—Castors in general; Anti-clogging castors adjustable, e.g. in height; linearly shifting castors
- B60B33/045—Castors in general; Anti-clogging castors adjustable, e.g. in height; linearly shifting castors mounted resiliently, by means of dampers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60B—VEHICLE WHEELS; CASTORS; AXLES FOR WHEELS OR CASTORS; INCREASING WHEEL ADHESION
- B60B33/00—Castors in general; Anti-clogging castors
- B60B33/006—Castors in general; Anti-clogging castors characterised by details of the swivel mechanism
- B60B33/0065—Castors in general; Anti-clogging castors characterised by details of the swivel mechanism characterised by details of the swivel axis
- B60B33/0068—Castors in general; Anti-clogging castors characterised by details of the swivel mechanism characterised by details of the swivel axis the swivel axis being vertical
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Handcart (AREA)
Abstract
Provided is a shock-absorbing type caster, which separates the correlative direction face of a first pad and a second pad compressed and the rotation center of the transmission arm based on the rotary transmission arm. A first projecting portion of the first pad and a second projecting portion of the second pad have a longer distance when they are further from the rotation center of the transmission arm. The first pad and the second pad contact depending on the rotation of the transmission arm and get a balanced compression so as to obtain a balanced shock damping effect. The areas of the first and second pads are small contacting and being compressed when getting a small force and the areas become larger following the increased weight. Thereby, the first and second pads are compressed and extending when getting a small force owing to a small weight as so to obtain a balanced shock damping effect.
Description
[technical field]
The present invention relates to improve the shock-absorbing type caster of the damping part structure that absorbs weight and impact.
[background technology]
So-called castor is meant with the bottom of conveying arrangement and is connected the wheel that can freely change direction.Be broadly divided into fixed castor and rotary-type castor.
Shock-absorbing type caster has and absorbs weight and impact, thereby has the function that can make the article that carried avoid damaging, and Fig. 1 a and Fig. 1 b are the structural representations of existing shock-absorbing type caster, with reference to Fig. 1 a and Fig. 1 b existing shock-absorbing type caster are illustrated.
As shown in the figure, with the bottom surface of conveying arrangement bonded assembly top board 11 on, connecting framework 13, connecting rotatable transmission arm 15 on the framework 13.
In detail, an end of transmission arm 15 is positioned at the inboard of framework 13, and middle body is connected with framework 13, is connecting wheel 17 on the other end.Like this, relying on the weight of above-mentioned conveying arrangement, under the situation that top board 11 and framework 13 descend, when transmission arm 15 rises with wheel 17, is the center with the position that is connected with framework 13, presses the anticlockwise direction rotation.
In addition,, form certain space, in above-mentioned space, be provided with and possess the pad 22 that the rubber quality is arranged and the damping part 20 of spring 24 at the other end of framework 13 and transmission arm 15.Damping part 20 descends at framework 13, under the situation of transmission arm 15 risings and rotation, is squeezed, and absorbs the weight and the impact of above-mentioned conveying arrangement.Like this, just prevent that the article and the shock-absorbing type caster that are transported from sustaining damage.
But, aforesaid existing shock-absorbing type caster, pad 22 is a regular hexahedron, along with framework 13 descends, transmission arm 15 rises and rotation and being squeezed, thus, shown in Fig. 1 b, be benchmark with the centre of gration of transmission arm 15, the position of the pad 22 that is close with the centre of gration of transmission arm 15 is subjected to less extruding, then be subjected to bigger extruding with the position of the pad 22 of the centre of gration apart from each other of transmission arm 15, so pad 22 suffered squeese pressures are unbalanced.So, just there is the shortcoming that is difficult to reach the balanced shock damping effect.
In addition, because the single-piece compression of pad 22 or expansion and weight are irrelevant,, under the situation that is subjected to the less weight application force, just have the shortcoming that can't reach damping effect.
[summary of the invention]
The present invention proposes for the shortcoming that solves above-mentioned prior art just, the purpose of this invention is to provide a kind of shock-absorbing type caster that can reach the balanced shock damping effect.
Another object of the present invention provides a kind of shock-absorbing type caster that also can reach damping effect under the situation of less weight application force.
In order to achieve the above object, the present invention is made of following components:
Be fixed on the bottom surface of conveying arrangement, rely on the top board of the weight lifting of above-mentioned conveying arrangement;
Be connected with the bottom surface of above-mentioned top board, with the framework of above-mentioned top board lifting simultaneously;
One end is positioned at the inboard of said frame, and central part supporting frame, the other end are positioned at the outside of said frame, along with the lifting of said frame is the transmission arm of center rotation with the position of supporting said frame;
Contact, support the other end of said frame and the wheel of rotation with ground;
By contact with said frame and upper surface to length direction one end of said frame more and more the rubber quality of low dip the 1st pad, contact with above-mentioned transmission arm and the bottom surface to length direction one end of above-mentioned transmission arm more and more the rubber quality of high dip the 2nd pad and be arranged on above-mentioned the 1st pad and above-mentioned the 2nd pad between spring form along with being rotated in of above-mentioned transmission arm is compressed/absorbs when expanding the damping part that impacts.
Form two the 1st protrusions that keep at a certain distance away at the upper surface of above-mentioned the 1st pad and along the length direction of above-mentioned transmission arm, the height of above-mentioned the 1st protrusion to length direction one end of transmission arm more to low more;
The bottom surface of above-mentioned the 2nd pad and with the corresponding direction of above-mentioned the 1st protrusion on form two the 2nd protrusions, the height of above-mentioned the 2nd protrusion is more and more higher to length direction one end of above-mentioned transmission arm.
The bottom surface of the upper surface of above-mentioned the 1st protrusion and above-mentioned the 2nd protrusion is parallel, inclined with the bottom surface of the upper surface of above-mentioned the 1st pad and above-mentioned the 2nd pad respectively.
Be fixed on the bottom surface of conveying arrangement, rely on the top board of the weight lifting of above-mentioned conveying arrangement;
Be connected with the bottom surface of above-mentioned top board, with the framework of above-mentioned top board lifting simultaneously;
Inboard, central part supporting frame, the other end that one end is positioned at said frame is positioned at the outside of said frame and along with the lifting of said frame is the transmission arm of center rotation with the position of supporting said frame;
Contact, support the other end of said frame and the wheel of rotation with ground;
By contact with said frame and upper surface more and more lower and be provided with the 1st pad of the rubber quality of two the 1st protrusions to the length direction one end height of said frame, contact with above-mentioned transmission arm and the bottom surface more and more higher and be provided with the 2nd pad of the rubber quality of two the 2nd protrusions to the length direction one end height of above-mentioned transmission arm, and be arranged on that spring between above-mentioned the 1st pad and above-mentioned the 2nd pad forms along with being rotated in of above-mentioned transmission arm is compressed/absorbs when expand the damping part of impact.
The upper surface of above-mentioned the 1st protrusion is low more to above-mentioned transmission arm length direction one end more, forms heeling condition; The bottom surface of above-mentioned the 2nd protrusion is high more to above-mentioned transmission arm length direction one end more, forms heeling condition.
The bottom surface of the upper surface of above-mentioned the 1st protrusion and the 2nd protrusion is parallel with imaginary horizontal surface.
The the above-mentioned the 1st and the 2nd protrusion can be that parallelepiped or semicolumn strip are outstanding, and parallelepiped or cylinder point-like are outstanding.
On the bottom surface of the upper surface of above-mentioned the 1st pad and above-mentioned the 2nd pad, form two corresponding slots of assigning above-mentioned spring, the slot that slot forms with central part is that the center becomes the point symmetry setting.
Form depressed part in a side of above-mentioned transmission arm outside, on framework, be provided with the brake equipment of the restriction said frame lifting distance that inserts depressed part and contact respectively along with the transmission arm rotation and the two sides of depressed part.
Effect of the present invention:
As mentioned above, shock-absorbing type caster of the present invention, the framework that relies on rotation, the 1st pad of the damping part that is compressed and the face of the corresponding direction of the 2nd pad, far away more apart from the centre of gration of transmission arm, the distance of space is just big more, form heeling condition, the 1st protrusion of the 1st pad and the 2nd protrusion of the 2nd pad, far away more apart from the centre of gration of transmission arm, the space distance is big more.So, relying on the rotation of transmission arm, the 1st and the 2nd pad is in contact with one another, and when being squeezed, because isostatic compression, so can receive the effect of balanced shock damping.
In addition, on the 1st and the 2nd pad, direction is mutually under the less situation of the weight application force that applied of the cooresponding the 1st and the 2nd protrusion, be in contact with one another and the compressed the 1st and the area of the 2nd pad just little, along with the increasing of weight, it is big that the area of the 1st and the 2nd pad that is in contact with one another and is extruded just becomes gradually.So, even less weight owing to the compression and the expansion of the 1st and the 2nd pad, also can be received the effect of balanced shock damping.
[description of drawings]
Fig. 1 a and Fig. 1 b are the structural representations of existing shock-absorbing type caster;
Fig. 2 is the structural representation of the shock-absorbing type caster of one embodiment of the present of invention;
Fig. 3 is a framework as shown in Figure 2, the oblique drawing of transmission arm and damping part;
Fig. 4 a to Fig. 4 d is a shock-absorbing type caster in one embodiment of the present of invention, according to the rotation of the transmission arm of shock-absorbing type caster, the scheme drawing that damping part is compressed;
Fig. 5 is the oblique drawing of the 1st and the 2nd pad of another embodiment.
The nomenclature of main portion in the accompanying drawing
110: top board 130: framework
160: transmission arm 170: wheel
The 181,281: the 1st pad the 182,282: the 1st protrusion
The 184,284: the 2nd pad the 185,285: the 2nd protrusion
189: spring
[specific embodiment]
Below, with reference to the accompanying drawings the shock-absorbing type caster in one embodiment of the present of invention is described in detail.
As Fig. 2 and shown in Figure 3, on the bottom surface that is similar to conveying arrangements such as hand push chain-wales car or mobile platform, be provided with and bottom surface bonded assembly top board 110, on the middle position of top board 110, be connected with screw 120, screw 120 relies on the weight and the exterior impact of above-mentioned conveying arrangement, is consistent with the lifting of top board 110.
The position that screw 120 is given prominence to below top board 110, the framework of opening with front and bottom surface one side 130 is connected, and when framework 130 keeps a lifting with screw 120, can screw 120 be the center rotation.The lower end of screw 120 is equipped with the nut 125 that prevents that framework 130 from coming off from screw 120.
Between top board 110 and framework 130 and the inner upper end of framework 130, be provided with and be in screw 120 exterior bearings 141,145, bearing 141,145 support frames 130 can rotate it flexibly.Bearing 141,145 is respectively being covered by dust boot 151,155, plays a protective role.
Two sides of framework 130 are relative, and an end of transmission arm 15 is positioned at the inboard of framework 13, and the central part of transmission arm 160 is being supported framework 130, and the other end is positioned at the outside of framework 130, and transmission arm 160 is that the center can rotate with the central part of supporting frame 130.
Connecting on the other end of transmission arm 160 with ground and contacting and rotatable wheel 170.
Inside at framework 130, be provided with respectively the damping part 180 that contacts with transmission arm 160 with framework 130, when it is squeezed along with the rotation of transmission arm 160, absorb the weight and the impact of above-mentioned conveying arrangement, prevent that the article and the shock-absorbing type caster that are transported from sustaining damage.
Just as stated, because the weight and the exterior impact of above-mentioned conveying arrangement, make that screw 120 and framework 130 also descend simultaneously under the situation that above-mentioned top board 110 descends.In addition, transmission arm 160 is owing to be connected with the wheel 170 of the other end, when wheel 170 rises, is that the center is rotated with the position of support frame 130.But, because rotation when transmission arm 160 rises, be arranged on the inside of framework 130, the damping part 180 that relies on the rotation of transmission arm 160 to be squeezed, just be subjected to bigger and bigger extruding apart from transmission arm 160 a centre of grations end far away at the length direction of transmission arm 160.
According to shock-absorbing type caster of the present invention, when damping part 180 is subjected to balanced extruding,, also can reach the effect of damping even under the situation that is subjected to the less weight application force, below will be described in detail this.
The 1st pad 181 bottom surfaces contact with the end medial surface of framework 130, upper surface to the length direction of said frame promptly to the length direction of transmission arm 160 and more and more lower, inclined apart from transmission arm 160 a centre of grations end far away.The 2nd pad 184 upper surfaces contact with the last medial surface of transmission arm 160, and the bottom surface has apart from transmission arm 160 a centre of grations end far away more and more higher, inclined to the length direction of transmission arm 160.
On the bottom surface of the upper surface of the 1st pad 181 and the 2nd pad 184, form respectively two the 1st protrusions 182 and with two the 1st protrusion 182 corresponding two the 2nd protrusions 185.
The height of two the 1st protrusions 182 can be consistent, also can be more and more lower apart from a centre of gration end far away to the length direction of transmission arm 160, and the latter is comparatively desirable.The height of two the 2nd protrusions 185 can be consistent, also can be to transmission arm 160 length direction and more and more higher apart from a centre of gration end far away, the latter's situation is comparatively desirable.This is that the bottom surface of two the 2nd protrusions 185 then is in the more and more higher position of an end of the length direction of transmission arm 160 for the upper surface that makes two the 1st protrusions 182 is in to the more and more lower position of an end of the length direction of transmission arm 160.
The the 1st and the 2nd protrusion 182,185 can be that the cross section is that rectangle or foursquare cuboid strip are given prominence to or the cross section is that semi-round semicolumn strip is outstanding.At this moment, the 1st and the 2nd protrusion 182,185 forms respectively along the Width of transmission arm 160, and with the certain interval of the length direction of transmission arm distance.In addition, the 1st and the 2nd protrusion 182,185 can be that cuboid or cylindrical point-like are outstanding, and this moment, the 1st and the 2nd protrusion 182,185 was along the width of transmission arm 160 and length direction certain interval of distance all.
In addition, two the 1st protrusions 182 upper surface separately can be parallel with imaginary horizontal surface, also can be parallel with the upper surface of the 1st pad 181, inclined.In addition, two the 2nd protrusion 185 bottom surfaces separately can be parallel with imaginary horizontal surface, also can be parallel with the bottom surface of the 2nd pad 184, inclined.
Effect for the shock-absorbing type caster in the embodiments of the invention that constitute as mentioned above is illustrated with reference to Fig. 2 to Fig. 4 d.Fig. 4 a to Fig. 4 d is a shock-absorbing type caster in one embodiment of the present of invention, along with the rotation of transmission arm, and the scheme drawing of extruding damping part.
State shown in Figure 2 is assumed to initial conditions.Under the situation that imposes the less weight application force, have only spring 189 to be squeezed, absorb impulsive force.Under such state, continue to apply under the situation of weight and impact forces, framework 130 and transmission arm 160 descend, and opposite wheel 170 rises.Thus, when transmission arm 160 rises with wheel, be the center with the position of support frame 130, press left-hand revolution.
Like this, shown in Fig. 4 a and Fig. 4 b, the bottom surface of the 2nd protrusion 185 of the upper surface of the 1st protrusion 182 of the 1st pad 181 and the 2nd pad 184 is squeezed when being touched.At this moment, the 1st protrusion 182 that is positioned at the centre of gration closer locations of transmission arm 160 at first contacts with the 2nd protrusion 185, meanwhile, in order, separate the 1st protrusion 182 far away with the centre of gration of transmission arm 160 and contact and be compressed with the 2nd protrusion 185.In addition, owing to be in contact with one another and the compressed the 1st and the 2nd protrusion 182,185 more to transmission arm 160 a centre of grations end far away, suffered extruding is just big more, the upper surface of mutual cooresponding the 1st protrusion 182 of direction and the bottom surface of the 2nd protrusion 185 are more to transmission arm 160 a centre of grations end far away, the phase mutual edge distance is far away more, so can be subjected to balanced extruding.
Next, strengthen the application force of weight and impact, transmission arm 160 is pressed anticlockwise direction and is followed under the situation of rotation, shown in Fig. 4 c and Fig. 4 d, being positioned at the upper surface of the 1st pad 181 of centre of gration closer locations of transmission arm 160 and the bottom surface of the 2nd pad 184 at first contacts, when contacting than the bottom surface of the upper surface of the 1st pad 181 of distant positions and the 2nd pad 184 in order, and be compressed with the centre of gration of transmission arm 160.Since be in contact with one another and the compressed the 1st and the 2nd pad 181,184 more to transmission arm 160 a centre of grations end far away, suffered extruding is big more, the the 1st and the 2nd pad 181,184 is more to transmission arm 160 a centre of grations end far away, and the phase mutual edge distance is far away more, so can be subjected to balanced extruding.
The shock-absorbing type caster of present embodiment is under the situation that is subjected to the lower weight application force, and the 1st protrusion 182 and the 2nd protrusion 185 that just are positioned at the centre of gration closer locations of transmission arm 160 are compressed.Increasing when weight, separate to separate than the 1st pad 181 of distant positions with the centre of gration of transmission arm 160 and contact successively and be compressed with the 2nd position than the 1st protrusion 182 of distant positions and the 2nd protrusion 185, the 1st pad 181 and the 2nd pad 184 positions that are positioned at transmission arm 160 centre of gration closer locations, with the centre of gration of transmission arm 160.That is, along with the increase of weight, the position of contact and compressed the 1st pad 181 and the 2nd pad 184 becomes increasing.So even under the situation of less weight application force, the effect of damping also can access performance.
Under the situation of the certain distance of framework 130 declines, brake equipment 135 contacts with the another side of the depressed part 163 of transmission arm 160.Like this, under the situation of weight and impact effect increasing, framework 130 can not continue to descend again yet.
Fig. 5 is in the another embodiment of the present invention, and the oblique drawing of the 1st and the 2nd pad only is illustrated the difference with Fig. 3 here.
As shown in the figure, the 1st and the 2nd pad 281,284 is lineal hexahedral.The bottom surface of the upper surface of the 1st pad 281 and the 2nd pad 284 is parallel with imaginary horizontal surface.In addition, on the bottom surface of the upper surface of the 1st pad 281 and the 2nd pad 284, form two the 1st protrusions 282 and two the 2nd protrusions 285 respectively.The height of two the 1st protrusions 282 end to transmission arm 160 length directions (with reference to Fig. 3) is low more, and the height of two the 2nd protrusions 285 is more high more to an end of transmission arm 160 length directions (with reference to Fig. 3).
This point, as record and narrate, this be for the upper surface that makes two the 1st protrusions 282 be in far away more apart from the centre of gration of transmission arm 160, more and more lower position just, the bottom surface of two the 2nd protrusions 285 then is in far away more apart from the centre of gration of transmission arm 160, just more and more higher position.
Above-mentioned two the 1st protrusions 282 upper surface separately can be parallel with imaginary horizontal surface, also can be the more and more lower heeling condition of an end along transmission arm 160 length directions.Above-mentioned two the 2nd protrusion 285 bottom surfaces separately can be parallel with imaginary horizontal surface, also can be the more and more higher heeling condition of an end along transmission arm 160 length directions.
By above-mentioned explanation, those skilled in the art can carry out various change and modification fully in the scope that does not depart from the technology of the present invention thought.
Therefore, technical scope of the present invention is not limited to the content of specification sheets, must determine its technical scope according to interest field.
Claims (13)
1, a kind of shock-absorbing type caster is characterized in that, is made of following components:
Be fixed on the bottom surface of conveying arrangement, rely on the top board of the weight lifting of above-mentioned conveying arrangement;
Be connected with the bottom surface of above-mentioned top board, with the framework of above-mentioned top board lifting simultaneously;
One end is positioned at the inboard of said frame, and central part supporting frame, the other end are positioned at the outside of said frame, along with the lifting of said frame is the transmission arm of center rotation with the position of supporting said frame;
Contact, support the other end of said frame and the wheel of rotation with ground;
By contact with said frame and upper surface to length direction one end of said frame more and more the rubber quality of low dip the 1st pad, contact with above-mentioned transmission arm and the bottom surface to length direction one end of above-mentioned transmission arm more and more the rubber quality of high dip the 2nd pad and be arranged on above-mentioned the 1st pad and above-mentioned the 2nd pad between spring form along with being rotated in of above-mentioned transmission arm is compressed/absorbs when expanding the damping part that impacts.
2, shock-absorbing type caster according to claim 1 is characterized in that,
Form two the 1st protrusions that keep at a certain distance away at the upper surface of above-mentioned the 1st pad and along the length direction of above-mentioned transmission arm, the height of above-mentioned the 1st protrusion to length direction one end of transmission arm more to low more;
The bottom surface of above-mentioned the 2nd pad and with the corresponding direction of above-mentioned the 1st protrusion on form two the 2nd protrusions, the height of above-mentioned the 2nd protrusion is more and more higher to length direction one end of above-mentioned transmission arm.
3, shock-absorbing type caster according to claim 2 is characterized in that,
The bottom surface of the upper surface of above-mentioned the 1st protrusion and above-mentioned the 2nd protrusion is parallel, inclined with the bottom surface of the upper surface of above-mentioned the 1st pad and above-mentioned the 2nd pad respectively.
4, shock-absorbing type caster according to claim 2 is characterized in that, the bottom surface of the upper surface of above-mentioned the 1st protrusion and the 2nd protrusion is parallel with imaginary horizontal surface.
5, shock-absorbing type caster according to claim 2 is characterized in that, the above-mentioned the 1st and the 2nd protrusion can be that parallelepiped or semicolumn strip are outstanding, and parallelepiped or cylinder point-like are outstanding.
6, shock-absorbing type caster according to claim 1, it is characterized in that, on the bottom surface of the upper surface of above-mentioned the 1st pad and above-mentioned the 2nd pad, form two corresponding slots of assigning above-mentioned spring, the slot that slot forms with central part is that the center becomes the point symmetry setting.
7, according to the shock-absorbing type caster described in the claim 1, it is characterized in that, form depressed part in a side of above-mentioned transmission arm outside, on framework, be provided with the brake equipment of the restriction said frame lifting distance that inserts depressed part and contact respectively along with the transmission arm rotation and the two sides of depressed part.
8, a kind of shock-absorbing type caster is characterized in that, is made of following components:
Be fixed on the bottom surface of conveying arrangement, rely on the top board of the weight lifting of above-mentioned conveying arrangement;
Be connected with the bottom surface of above-mentioned top board, with the framework of above-mentioned top board lifting simultaneously;
Inboard, central part supporting frame, the other end that one end is positioned at said frame is positioned at the outside of said frame and along with the lifting of said frame is the transmission arm of center rotation with the position of supporting said frame;
Contact, support the other end of said frame and the wheel of rotation with ground;
By contact with said frame and upper surface more and more lower and be provided with the 1st pad of the rubber quality of two the 1st protrusions to the length direction one end height of said frame, contact with above-mentioned transmission arm and the bottom surface more and more higher and be provided with the 2nd pad of the rubber quality of two the 2nd protrusions to the length direction one end height of above-mentioned transmission arm, and be arranged on that spring between above-mentioned the 1st pad and above-mentioned the 2nd pad forms along with being rotated in of above-mentioned transmission arm is compressed/absorbs when expand the damping part of impact.
9, shock-absorbing type caster according to claim 8 is characterized in that,
The upper surface of above-mentioned the 1st protrusion is low more to above-mentioned transmission arm length direction one end more, forms heeling condition; The bottom surface of above-mentioned the 2nd protrusion is high more to above-mentioned transmission arm length direction one end more, forms heeling condition.
10, the shock-absorbing type caster described in according to Claim 8 is characterized in that the bottom surface of the upper surface of above-mentioned the 1st protrusion and the 2nd protrusion is parallel with imaginary horizontal surface.
11, the shock-absorbing type caster described in according to Claim 8 is characterized in that,
The the above-mentioned the 1st and the 2nd protrusion can be that parallelepiped or semicolumn strip are outstanding, and parallelepiped or cylinder point-like are outstanding.
12, the shock-absorbing type caster described in according to Claim 8 is characterized in that,
On the bottom surface of the upper surface of above-mentioned the 1st pad and above-mentioned the 2nd pad, form two corresponding slots of assigning above-mentioned spring, the slot that slot forms with central part is that the center becomes the point symmetry setting.
13, the shock-absorbing type caster described in according to Claim 8 is characterized in that,
Form depressed part in a side of above-mentioned transmission arm outside, on framework, be provided with the brake equipment of the restriction said frame lifting distance that inserts depressed part and contact respectively along with the transmission arm rotation and the two sides of depressed part.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020060068389 | 2006-07-21 | ||
| KR1020060068389A KR100741464B1 (en) | 2006-07-21 | 2006-07-21 | Shock-absorbing type caster |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101108573A CN101108573A (en) | 2008-01-23 |
| CN100506576C true CN100506576C (en) | 2009-07-01 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB200610138495XA Expired - Fee Related CN100506576C (en) | 2006-07-21 | 2006-11-17 | Shock-absorbing type caster |
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| Country | Link |
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| KR (1) | KR100741464B1 (en) |
| CN (1) | CN100506576C (en) |
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| US10308068B2 (en) | 2017-05-03 | 2019-06-04 | Snap-On Incorporated | Suspension caster |
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| KR100922854B1 (en) * | 2007-07-18 | 2009-10-20 | 김춘식 | Having a suspention the caster |
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| KR102616483B1 (en) * | 2022-05-16 | 2023-12-27 | 주식회사 영광테크 | Casters with shock absorbers |
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| CN2472990Y (en) * | 2001-02-28 | 2002-01-23 | 国营红林机械厂 | Double brake buffering castor |
| US7017926B2 (en) * | 2002-09-05 | 2006-03-28 | Hyundai Motor Company | Front-wheel suspension system using a steering gear frame |
| EP1346854B1 (en) * | 2001-12-14 | 2006-05-03 | Ford Global Technologies, LLC | Motor vehicle wheel suspension |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5566788A (en) * | 1995-02-24 | 1996-10-22 | Ephtec, Inc. | Shopping cart brake assembly |
| KR100422466B1 (en) | 2001-03-22 | 2004-03-11 | 경창정공 주식회사 | Shock-absorbing type caster |
-
2006
- 2006-07-21 KR KR1020060068389A patent/KR100741464B1/en active IP Right Grant
- 2006-11-17 CN CNB200610138495XA patent/CN100506576C/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3171237B2 (en) * | 1997-09-18 | 2001-05-28 | 株式会社トピア | Swivel casters |
| CN1275496A (en) * | 1999-05-26 | 2000-12-06 | 德里森航空控股公司 | Brake device with braking regulation system |
| CN2472990Y (en) * | 2001-02-28 | 2002-01-23 | 国营红林机械厂 | Double brake buffering castor |
| EP1346854B1 (en) * | 2001-12-14 | 2006-05-03 | Ford Global Technologies, LLC | Motor vehicle wheel suspension |
| US7017926B2 (en) * | 2002-09-05 | 2006-03-28 | Hyundai Motor Company | Front-wheel suspension system using a steering gear frame |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10308068B2 (en) | 2017-05-03 | 2019-06-04 | Snap-On Incorporated | Suspension caster |
| TWI694012B (en) * | 2017-05-03 | 2020-05-21 | 美商施耐寶公司 | Suspension caster |
| TWI722873B (en) * | 2017-05-03 | 2021-03-21 | 美商施耐寶公司 | Elastic member |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101108573A (en) | 2008-01-23 |
| KR100741464B1 (en) | 2007-07-20 |
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