KR101830381B1 - Carring caster having braking device - Google Patents
Carring caster having braking device Download PDFInfo
- Publication number
- KR101830381B1 KR101830381B1 KR1020150187808A KR20150187808A KR101830381B1 KR 101830381 B1 KR101830381 B1 KR 101830381B1 KR 1020150187808 A KR1020150187808 A KR 1020150187808A KR 20150187808 A KR20150187808 A KR 20150187808A KR 101830381 B1 KR101830381 B1 KR 101830381B1
- Authority
- KR
- South Korea
- Prior art keywords
- braking
- pedal
- wheel
- bracket
- fixed
- Prior art date
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Classifications
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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
- B60B33/0028—Construction of wheels; methods of assembling on axle
-
- 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
- B60B33/0078—Castors in general; Anti-clogging castors characterised by details of the wheel braking mechanism
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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
- B60B33/0078—Castors in general; Anti-clogging castors characterised by details of the wheel braking mechanism
- B60B33/0081—Castors in general; Anti-clogging castors characterised by details of the wheel braking mechanism acting on tire tread
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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
- B60B33/02—Castors in general; Anti-clogging castors with disengageable swivel action, i.e. comprising a swivel locking mechanism
- B60B33/021—Castors in general; Anti-clogging castors with disengageable swivel action, i.e. comprising a swivel locking mechanism combined with braking of castor wheel
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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
- B60B33/02—Castors in general; Anti-clogging castors with disengageable swivel action, i.e. comprising a swivel locking mechanism
- B60B33/023—Castors in general; Anti-clogging castors with disengageable swivel action, i.e. comprising a swivel locking mechanism by using friction
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Handcart (AREA)
Abstract
An arm (30) is connected to a yoke (20), which is rotatably pivotally supported by a bearing, on a foot plate (10) coupled to a bogie. The yoke (20) The wheel 50 is fixed to the arm 30 on the other side by a buffer spring 40 and the wheel 30 is connected to the same axis as the wheel 50, The braking means includes a braking means for preventing rotation of the wheel 50 by pedal operation on the braking bracket 60 whose one end is fixed on the line, One end of a braking pedal (70) is rotatably shaft-coupled to a lower end of the braking pedal (70), one end of a braking release pedal (80) is rotatably coupled to the other end of the braking pedal (80) and the braking bracket (60) The leaf spring 90 is provided so as to have elasticity to move the pedal 80 to the wheel 50 side while the leaf spring 90 is rotated from the one end rotatably and axially coupled to the brake release pedal 80 A portion of the braking bracket 70 extending from the side of the braking bracket 70 to the side of the braking bracket 70 is bent at a predetermined angle from the side of the braking bracket 70, The plate surface extending from the bending portion toward the braking release pedal 80 is partially protruded to the side of the wheel 50 and bent from the bending portion to the braking bracket 60, The plate surface extending to the upper side is partially cut so that the one end which is not cut out is projected upward by the shaft and the protruded end is brought into close contact with the plate surface of the braking bracket 60, With respect to the brake bracket 60 for the brake pedal 70 and the brake pedal (80) for release to that provided with elastic so as to be supported by the wheel 50 and the opposite side has a feature.
Description
BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a transportation caster having a braking device, and more particularly, to a braking device having a braking pedal or a braking release pedal, And more particularly to a braking device having a braking device capable of releasing a braking force or releasing a braking force, thereby providing a more powerful and stable braking force and a convenience of operation.
Generally, the caster is provided at the lower end of the truck so that the truck can freely move while freely changing directions.
The caster is composed of a support plate for fastening and fixing to the carriage, a yoke rotatably connected to the central shaft at the bottom of the support plate, and a wheel fixed axially inside the yoke.
At this time, in order to alleviate the impact transmitted to the wheels due to the load of the bogie, the wheels are axially fixed to the arm rotatably connected to the yoke without axially fixing the wheels directly to the yoke, The spring may be provided.
On the other hand, bogies must not be moved for loading heavy objects or for lowering loaded objects.
To prevent the movement of the casters, it is a braking device, and in Japanese Patent No. 0630574 (September 26, 2006, name: Castor), a braking device in the casters is proposed.
The caster of the prior art is provided with a braking device for braking the wheel with a pressing force by a leaf spring on one side. When a leaf spring to which one side is fixed by a pin is pressed by a pedal, The pedal can not be rotated in the opposite direction due to the restoring force of the leaf spring at the moment when the first surface of the pedal comes into close contact with the leaf spring and comes into contact with the second surface of the pedal.
Thus, the outer peripheral surface of the wheel is pressed by the end of the leaf spring pressed by the second surface of the pedal, so that the rotation of the wheel is prevented so that the braking is performed.
However, when the interface between the first surface and the second surface during the operation of the pedal is in contact with the leaf spring, the most powerful operation force is required. In this case, the pressing force is most effective. However, The pressing force for pressing the leaf spring is considerably attenuated, so that a closure occurs in which the slip occurs on the contact surface between the wheel and the leaf spring.
If a separate stopper is connected to compensate for slippage in the leaf spring, a separate stopper must be provided, and a connection structure for connecting the stopper to the leaf spring is required.
SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a transportation caster having a braking device capable of exhibiting a stronger and more stable braking force by being brought into close contact with a wheel with a strongest elastic force by a leaf spring There is a main purpose.
Another object of the present invention is to provide a transportation caster having a braking device capable of easily and safely operating by separately providing a pedal for braking and a pedal for releasing brake.
In order to achieve the above-mentioned object, the present invention is characterized in that an arm is connected to a yoke which is rotatably pivotally supported by bearings on a support plate to be coupled to a bogie, and a buffer spring is provided on one side where the yoke and the arm are in close contact with each other, Wherein the braking means includes a braking means for preventing rotation of the wheel by a pedal operation on a braking bracket whose one end is fixed on the same axis line as the wheel on the arm, One end of a braking pedal is rotatably coupled to a lower end of the other end side of the braking bracket, one end of a braking release pedal is rotatably coupled to the other end of the braking pedal, Even when the leaf spring is provided so that the brake release pedal has elasticity to move to the wheel side over the brake bracket But,
The leaf spring
Wherein a plate surface is extended from one end rotatably and axially coupled to the braking release pedal to the braking bracket side and a portion where the plate surface is bent at a predetermined angle from the braking bracket side is fixed between both sides of the braking bracket The plate surface extending from the bending portion to the side of the braking release pedal is formed in such a manner that the plate surface thereof is partially projected to the side of the wheel and extends from the bent portion to the upper side of the braking bracket And the protruding end is brought into close contact with the plate surface of the braking bracket so that the braking pedal and the braking release pedal So as to be elastically supported on the opposite side of the wheel Feature.
The pressing surface formed to be curved toward the wheel side of the leaf spring is formed in a shape such that it is cut between the upper end portion and the lower end portion in the rotating direction of the wheel.
The slip prevention pad is attached to the pressing surface formed to be curved toward the wheel side of the leaf spring so as to prevent sliding when the wheel is closely contacted with the wheel.
On the other hand, the braking pedal and the braking release pedal are formed so that the lengths between the end portions of the pedal operation surfaces are the same, and the pedal operation surfaces are nipped so as not to overlap with each other.
A stable and stable braking force can be maintained simply by means of a plate spring simply by means of a castor having a braking device according to the present invention.
Further, the present invention makes it possible to more easily and safely operate the pedal operation force when braking or braking is to be released.
BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a perspective view illustrating a transportation caster having a braking device according to the present invention; Fig.
2 is a side view of a carrying caster with a braking device according to the present invention
3 is a side cross-sectional view illustrating a braking device of a transportation cast with a braking device according to the present invention.
FIG. 4 is a perspective view illustrating a leaf spring of a cast for transportation having a braking device according to the present invention.
FIG. 5 is an enlarged cross-sectional view of a main portion illustrating a configuration in which a plate spring of a casting for transportation having a braking device according to the present invention is provided with a non-
Fig. 6 is an operating state diagram illustrating a process of braking a wheel by a carrying casting with a braking device according to the present invention. Fig.
FIG. 7 is an operational state diagram illustrating a process of releasing a braking state of a wheel by a casting cast with a braking device according to the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a carrying caster having a braking device according to the present invention will be described in detail with reference to the accompanying drawings.
Fig. 1 is a perspective view illustrating a transportation caster having a braking device according to the present invention, and Fig. 2 is a side view of a transportation caster having the braking device according to the present invention.
As shown in the drawings, the carrying caster of the present invention has a configuration in which the
That is, the transporting caster is provided with a
Although the
However, the
On the other hand, a middle portion of the
So that the
One end of the
The
The construction as described above is very similar to that of a carrying caster having a conventional braking device.
3 is a side cross-sectional view illustrating a braking device for a transportation cast with a braking device according to the present invention.
The
The
In other words, the
One end of the
One end of the
The
More specifically, the
One end of the
The
On the other hand, the
Particularly, the
A leaf spring (90) is provided in a length from the braking bracket (60) to the braking release pedal (80).
The
As shown in FIG. 4, the
The end of the
The bending portion of the
In the
On the other hand, the
In particular, it is more preferable that the
The braking and braking releasing operation using the carrying casting with the braking device according to the present invention will now be described.
FIG. 6 is an operational state diagram illustrating a process of braking a wheel by a transportation cast with a braking device according to the present invention.
The
A second fixed
At this time, when the
The
The
The
The adhesion force between the
Therefore, according to the present invention, the braking force can be always maintained by the elasticity of the
The
When the heavy object transportation operation is completed, the
When the
When the third fixed
As described above, according to the present invention, the
Particularly, in the present invention, since the elastic force of the
10: base plate 20: yoke
30: arm 40: buffer spring
50: Wheel 60: Brake bracket
61: first fixed shaft 62: second fixed shaft
70: Brake pedal 71: Third fixed shaft
72: Pedal operating surface 80: Brake release pedal
81: fourth fixed shaft 82: pedal operating surface
90: leaf spring 91: pressing surface
92: incision surface 93: non-slip pad
Claims (5)
The braking means
One end of a braking pedal is rotatably coupled to a lower end of the other end side of the braking bracket, one end of a braking release pedal is rotatably coupled to the other end of the braking pedal, The leaf spring is provided so that the braking release pedal has elasticity to move to the wheel side over the brake bracket
The leaf spring
Wherein a plate surface is extended from one end rotatably and axially coupled to the braking release pedal to the braking bracket side and a portion where the plate surface is bent at a predetermined angle from the braking bracket side is fixed between both sides of the braking bracket And the braking force is transmitted from the bending portion to the braking release pedal through the first fixed shaft and the plate surface of the braking bracket, The plate surface extending toward the upper side of the bracket is partially cut so that the one end which is not cut out is projected upward by the shaft and the protruded end is brought into close contact with the plate surface of the brake bracket, and the braking pedal and the brake releasing So that the pedal is elastically supported on the opposite side of the wheel,
Wherein the pressing surface has a shape in which a reinforcing plate of a predetermined thickness is attached to the leaf spring, and an upper end portion and a lower end portion are cut in a rotating direction of the wheel.
Wherein the braking bracket is provided with a first fixed shaft and a second fixed shaft which are fixed to the intermediate and lower ends of the braking bracket in such a manner that one end of the braking pedal is fixed to the second fixed shaft, And a fourth fixed shaft is fixed to the other end of the braking release pedal, and a bent portion of the plate spring is fixed to the first fixed shaft and the second fixed shaft, And the other end side of the plate is partially cut so that the incised portion is bent in an upward direction with the unbraided end being bent upward, And the end portion is formed to be in surface-contact with the plate surface of the braking bracket.
Wherein the leaf spring has a braking device for attaching a non-slip pad to the pressing surface formed to be curved toward the wheel so as to prevent sliding when the wheel is in close contact with the wheel.
Wherein the braking pedal and the braking release pedal have the same length between the end portions of the respective pressing surfaces pressed by the sole, and the pressing surfaces are formed so as to be divided so as not to overlap each other.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020150187808A KR101830381B1 (en) | 2015-12-28 | 2015-12-28 | Carring caster having braking device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020150187808A KR101830381B1 (en) | 2015-12-28 | 2015-12-28 | Carring caster having braking device |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20170077668A KR20170077668A (en) | 2017-07-06 |
KR101830381B1 true KR101830381B1 (en) | 2018-02-21 |
Family
ID=59354455
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020150187808A KR101830381B1 (en) | 2015-12-28 | 2015-12-28 | Carring caster having braking device |
Country Status (1)
Country | Link |
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KR (1) | KR101830381B1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110682738A (en) * | 2019-10-08 | 2020-01-14 | 刘婉梅 | Caster with novel automatic braking device |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR200158846Y1 (en) * | 1997-10-08 | 1999-10-15 | 손덕수 | A pedal type lock/unlock caster |
CN1676350A (en) * | 2005-03-31 | 2005-10-05 | 胡坚兴 | Brake castor with improved structure |
CN203063566U (en) * | 2013-02-20 | 2013-07-17 | 上海林春万向轮制造有限公司 | Universal full brake device for caster |
-
2015
- 2015-12-28 KR KR1020150187808A patent/KR101830381B1/en active IP Right Grant
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR200158846Y1 (en) * | 1997-10-08 | 1999-10-15 | 손덕수 | A pedal type lock/unlock caster |
CN1676350A (en) * | 2005-03-31 | 2005-10-05 | 胡坚兴 | Brake castor with improved structure |
CN203063566U (en) * | 2013-02-20 | 2013-07-17 | 上海林春万向轮制造有限公司 | Universal full brake device for caster |
Also Published As
Publication number | Publication date |
---|---|
KR20170077668A (en) | 2017-07-06 |
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