KR101633450B1 - quick coupler - Google Patents
quick coupler Download PDFInfo
- Publication number
- KR101633450B1 KR101633450B1 KR1020150165335A KR20150165335A KR101633450B1 KR 101633450 B1 KR101633450 B1 KR 101633450B1 KR 1020150165335 A KR1020150165335 A KR 1020150165335A KR 20150165335 A KR20150165335 A KR 20150165335A KR 101633450 B1 KR101633450 B1 KR 101633450B1
- Authority
- KR
- South Korea
- Prior art keywords
- coupler
- lock
- engaging
- stopper
- pin
- Prior art date
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Classifications
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/3604—Devices to connect tools to arms, booms or the like
- E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/3604—Devices to connect tools to arms, booms or the like
- E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
- E02F3/3618—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat with two separating hooks
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/3604—Devices to connect tools to arms, booms or the like
- E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
- E02F3/3622—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat with a hook and a locking element acting on a pin
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/28—Dredgers; Soil-shifting machines mechanically-driven with digging tools mounted on a dipper- or bucket-arm, i.e. there is either one arm or a pair of arms, e.g. dippers, buckets
- E02F3/36—Component parts
- E02F3/3604—Devices to connect tools to arms, booms or the like
- E02F3/3609—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat
- E02F3/3663—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat hydraulically-operated
-
- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02F—DREDGING; SOIL-SHIFTING
- E02F3/00—Dredgers; Soil-shifting machines
- E02F3/04—Dredgers; Soil-shifting machines mechanically-driven
- E02F3/96—Dredgers; Soil-shifting machines mechanically-driven with arrangements for alternate or simultaneous use of different digging elements
Abstract
A quick coupler according to the present invention is a coupler mounted on a construction machine for coupling and separating attachments for operation and having first and second engaging portions formed to be spaced apart from each other and to which first and second engaging pins of the attachment are respectively engaged, The coupling protrusion is rotatably installed at the coupler body at the edge of the first coupling part, and when the first coupling pin of the attachment is inserted into the first coupling part, the locking protrusion is pulled out from the first coupling part, A locking member which is provided adjacent to the locking member so that the locking protrusion of the locking member protrudes from the first engaging portion, the first engaging pin is engaged with the first engaging portion, A stopper provided on the coupler main body to stop the lock member from moving relative to the stopper, An elastic support unit for providing an elastic force so as to be biased in a direction to be urged in a direction in which the lock member is biased; and a lock member supported on the stopper so that the lock projection portion of the lock member is pulled from the inner circumferential surface of the first engagement portion, And a lock releasing unit for releasing the locked state of the pin.
Description
The present invention relates to a quick coupler, and more particularly, to a quick coupler installed on a boom of an excavator and capable of coupling and separating an attachment of an excavator for a work to a boom.
Generally, an excavator is widely used construction equipment such as road construction, water supply and drainage construction, foundation construction work, land construction work, construction for collecting soil, etc. Attachment for work at each work site, for example, A bucket, a breaker, a crusher, a shear, a vibration ripper, or the like is selectively installed to perform the work.
The boom of the excavator is equipped with a coupler that allows the driver to select and replace attachments such as buckets and breakers at the tip of the boom as a way to move the boom from the driver's seat.
Korean Patent Registration No. 10-1499298 discloses a quick coupler having a safety accident prevention structure, a utility model registration No. 20-0225763 shows a coupler for an excavator, and Korean Patent No. 10-0397586 discloses an excavator bucket A safety device has been posted to secure the safety of the mounting clamp to ensure the safety of the clamp and bucket combination.
The quick coupler as described above has a structure in which the pins of the attachment are fixed by using a hook, so that the operation of the driver is not easy. That is, there is a problem that the coupling positions of the hook and the pin of the coupler must be matched with each other relatively accurately.
Korean Patent Publication No. 10-2014-0143071 discloses a quick coupler for a heavy equipment having a locking device and a quick coupler for a construction machine is disclosed in a patent document 10-2015-0093359, There are posted quick couplers for excavators in the issue.
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 method of gripping two pins of an attachment inserted in a first and a second coupling part using a transfer force of a slider installed in a main body, Which can be operated so as to prevent detachment of the pin.
It is another object of the present invention to provide a quick coupler which is relatively simple in construction and operation and can improve reliability in operation.
According to an aspect of the present invention, there is provided a quick coupler for mounting and dismounting attachments for use in a construction machine. The quick coupler includes first and second coupling pins, A coupler main body portion having a coupling portion,
The first engaging pin of the attachment is retracted from the first engaging portion when the locking protrusion is inserted into the first engaging portion and is returned when the insertion is completed, A locking member for preventing the first engagement pin from separating from the first engagement pin,
The locking member is provided so as to be adjacent to the locking member to come into contact with the locking member to prevent the first engaging pin from being separated from the first engaging portion in a state where the locking projection of the locking member protrudes from the first engaging portion, Stopper,
An elastic supporting unit installed on the coupler main body to provide an elastic force to elastically bias the locking member in a direction to contact the stopper,
And a lock release unit for releasing the lock state of the first engagement pin by rotating the lock member supported by the stopper in a direction separating from the stopper so that the lock projection of the lock member is pulled from the inner circumferential surface of the first engagement portion.
In the present invention, the elastic supporting unit may include a guide member slidably installed on the guide guide portion of the coupler body portion, and a guide member disposed between the guide member and the lock member such that the lock member can be rotated forward and backward ≪ / RTI >
And an elastic spring provided between the guide guide and the support jaw of the end of the guide member for elastically biasing the gold member in a direction in which the gold member contacts the stopper.
Wherein the lock release unit is slidably provided so as to be slidable in correspondence with the guide member and blocks the inlet side to prevent separation from the second engagement portion of the engagement pin of the attachment when advancing, And a first actuator installed between the coupler main body and the slider to advance and retract the slider.
In the quick coupler according to the present invention, when the coupling pin of the attachment installed in the coupler main body part is inserted into the first coupling part of the coupler body part, the locking member is rotated by the insertion force so that the locking member latching part is pulled out from the first coupling part, It is possible to prevent detachment of the attachment coupling pin from the first coupling portion after the completion of the insertion of the pin, thereby facilitating the attachment of the attachment. In particular, it is possible to prevent the engagement pin from being detached from the first engagement portion in a state in which an artificial external force for releasing is not applied to the lock member.
In the quick coupler according to the present invention, the coupling pins of the attachment coupled to the first and second coupling parts can be simultaneously coupled by using one actuator, so that the safety of coupling can be achieved.
1 is a partially cutaway perspective view of a quick coupler according to the present invention,
FIGS. 2 and 3 are partial cutaway side views of the quick coupler according to the present invention, showing operation states thereof.
FIGS. 4 and 5 are partial cutaway side views of the quick coupler according to the present invention, showing the operating state thereof.
The quick coupler according to the present invention is for attaching attachments such as a ripper, a breaker, a bucket, and the like mounted on a construction machine, in particular, a boom of an excavator, and one embodiment is shown in Figs.
Referring to the drawings, a quick coupler according to the present invention is mounted on a boom and is used to engage boom and attachments by grasping first and
The
The
The
The
The elastic supporting unit is not limited to the above-described embodiment, and may be configured such that the
The
4 and 5 show another embodiment of the lock release unit according to the present invention.
Referring to the drawings, the lock releasing unit is slidably mounted on the
A
The operation of the quick coupler according to the present invention constructed as described above will be described as follows.
First, to fasten the
In this state, the
Then, the
3, the
The quick coupler according to the present invention, constructed as described above, is easy to assemble and detach the detachment for various operations, and can improve reliability according to the coupling.
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is evident that many alternatives, modifications and variations will be apparent to those skilled in the art. Accordingly, the true scope of the present invention should be determined by the technical idea of the appended claims.
Claims (4)
Wherein the first engaging pin of the attachment is rotatably installed on the coupler body at the edge of the first engaging portion, and when the locking protrusion of the attachment is inserted into the first engaging portion, A locking member for preventing the first engagement pin from separating from the first engagement portion,
Wherein the locking member is provided so as to be adjacent to the locking member so as to come into contact with the locking member so as to prevent the first engaging pin from being separated from the first engaging portion in a state where the locking protrusion of the locking member protrudes from the first engaging portion, A stopper for preventing rotation of the motor,
An elastic support unit installed on the coupler body to provide an elastic force to elastically bias the lock member in a direction to contact the stopper;
And a lock release unit for releasing the locked state of the first engagement pin by rotating the lock member supported by the stopper in a direction separating from the stopper so that the lock projection portion is pulled from the inner circumferential surface of the first engagement portion,
Wherein the elastic supporting unit comprises a guide member slidably installed on a guide guide portion provided on the coupler body portion, and a guide member disposed between the guide member and the lock member such that the lock member is rotated when the guide member is moved forward and backward. ≪ / RTI >
And an elastic spring provided between the guide guide and the support jaw of the end of the guide member for elastically biasing the lock member in a direction in which the lock member contacts the stopper.
Wherein the lock release unit is slidably provided so as to be slidable in correspondence with the guide member and blocks the inlet side in order to prevent the second engagement pin of the attachment from separating from the second engagement portion when advancing, And a first actuator installed between the coupler main body and the slider to advance and retract the slider. The slider includes a first slider and a second slider, Quick coupler.
Wherein the lock release unit is slidably provided on the coupler body portion in a direction parallel to the guide member of the elastic support unit so as to contact the end portion of the guide member when the connection support rod is retracted to retract the guide member ,
A hook member for preventing the second engaging pin inserted into the second engaging portion from being detached is rotatably mounted on the coupler main body portion adjacent to the second engaging portion, And a support pin for contacting the end of the connection support rod and retracting the connection support rod when the hook member is rotated and the inlet of the second engagement portion is opened is provided in the hook member And a second coupler.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020150160100 | 2015-11-16 | ||
KR20150160100 | 2015-11-16 |
Publications (2)
Publication Number | Publication Date |
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KR20150140603A KR20150140603A (en) | 2015-12-16 |
KR101633450B1 true KR101633450B1 (en) | 2016-06-24 |
Family
ID=55080687
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1020150165335A KR101633450B1 (en) | 2015-11-16 | 2015-11-25 | quick coupler |
Country Status (1)
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KR (1) | KR101633450B1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20190076086A (en) | 2017-12-21 | 2019-07-02 | 김억수 | Quick Clamp Apparatus Capable of Vibration Reduction |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR200211608Y1 (en) * | 2000-06-30 | 2001-01-15 | 주식회사한우티엔씨 | Attachment coupler for heavy industrial equipment |
KR101043036B1 (en) | 2009-05-19 | 2011-06-21 | 주식회사 에버다임 | Attachment coupler for heavy machinery, ensuring a complete coupling with the attachment |
KR101509126B1 (en) | 2013-09-30 | 2015-04-07 | (주)에스엔씨 | Locking apparatus for exchanging sub-device of heavy equipment |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101021926B1 (en) * | 2008-11-12 | 2011-03-17 | 주식회사 에버다임 | Attachment coupler for heavy industrial equipment |
KR20140143068A (en) | 2013-06-05 | 2014-12-15 | 최정자 | Quick safety coupler having advanced structured automatic immersing device therein |
KR20150093359A (en) | 2014-02-07 | 2015-08-18 | 볼보 컨스트럭션 이큅먼트 에이비 | quick coupler for construction machine |
KR101523072B1 (en) | 2014-09-29 | 2015-05-27 | 주식회사 제이케이 | Quick coupler for excavation |
-
2015
- 2015-11-25 KR KR1020150165335A patent/KR101633450B1/en active IP Right Grant
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR200211608Y1 (en) * | 2000-06-30 | 2001-01-15 | 주식회사한우티엔씨 | Attachment coupler for heavy industrial equipment |
KR101043036B1 (en) | 2009-05-19 | 2011-06-21 | 주식회사 에버다임 | Attachment coupler for heavy machinery, ensuring a complete coupling with the attachment |
KR101509126B1 (en) | 2013-09-30 | 2015-04-07 | (주)에스엔씨 | Locking apparatus for exchanging sub-device of heavy equipment |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20190076086A (en) | 2017-12-21 | 2019-07-02 | 김억수 | Quick Clamp Apparatus Capable of Vibration Reduction |
Also Published As
Publication number | Publication date |
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KR20150140603A (en) | 2015-12-16 |
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