GB2308839A - Device for Connecting Iplement to Machine - Google Patents

Device for Connecting Iplement to Machine Download PDF

Info

Publication number
GB2308839A
GB2308839A GB9625713A GB9625713A GB2308839A GB 2308839 A GB2308839 A GB 2308839A GB 9625713 A GB9625713 A GB 9625713A GB 9625713 A GB9625713 A GB 9625713A GB 2308839 A GB2308839 A GB 2308839A
Authority
GB
United Kingdom
Prior art keywords
fixing pin
bucket
hydraulic cylinder
diameter
attachment
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
GB9625713A
Other versions
GB9625713D0 (en
Inventor
Kee Young Kim
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Samsung Heavy Industries Co Ltd
Original Assignee
Samsung Heavy Industries Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1019950068498A external-priority patent/KR100202088B1/en
Priority claimed from KR1019950068499A external-priority patent/KR100202087B1/en
Application filed by Samsung Heavy Industries Co Ltd filed Critical Samsung Heavy Industries Co Ltd
Publication of GB9625713D0 publication Critical patent/GB9625713D0/en
Publication of GB2308839A publication Critical patent/GB2308839A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • E02F3/3631—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 transversal locking element
    • 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
    • E02F3/34—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 with bucket-arms, i.e. a pair of arms, e.g. manufacturing processes, form, geometry, material of bucket-arms directly pivoted on the frames of tractors or self-propelled machines
    • E02F3/3405—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 with bucket-arms, i.e. a pair of arms, e.g. manufacturing processes, form, geometry, material of bucket-arms directly pivoted on the frames of tractors or self-propelled machines and comprising an additional linkage mechanism
    • E02F3/3411—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 with bucket-arms, i.e. a pair of arms, e.g. manufacturing processes, form, geometry, material of bucket-arms directly pivoted on the frames of tractors or self-propelled machines and comprising an additional linkage mechanism of the Z-type
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/045—Pivotal connections with at least a pair of arms pivoting relatively to at least one other arm, all arms being mounted on one pin

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Mining & Mineral Resources (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Shovels (AREA)
  • Component Parts Of Construction Machinery (AREA)

Description

2308839 DEVICE FOR DETACHABLY MOUN-MG AN ATTACIMEN7 TO A HEAVY
EQUIPINIEN'T Backaeround of the Invention
1. Field of the Invention.
The present invention relates to a device for detachably mounting an attachment to a heavy equipment, and more particularly to a device for mounting an attachment to a heavy equipment or for detaching the attachment from the heavy equipment capable of rapidly mounting an attachment such as a bucket, and the like, on a working device of an equipment for excavating the ground or for loadin an object to be processed in accordance with a 9 working condition, and capable of preventing a high loading and a shock generated during the per-forming a job from transmitting to a hydraulic cylinder for mounting or detaching the attachment.
2. Description of the Prior Art
A variety of techniques relating to a device for detachably mounting an attachment is such as a bucket, and the like, to a heavy equipment in accordance with an object to be processed and an environment of a working place have been proposed hitherto.
U.S. Pat. Nos. 3,883,015 and 3.876,091 disclose a connecting device for connecting an attachment to a main body of an equipment such as a tractor, and the like. The connecting device is connected to the attachment at three position. and supports a high loading which is operated to the attachment during the performing of a job. However, stresses due to the high loading are concentrated to the three position. As a result, the wear and the strain of a structure and component parts are generated. thereby the attachment such as the bucket. and 1 the like. is detached from the connecting device during the performing of a job.
U.S. Pat. No. 3,243,066 disclose a device for detachablY mountin. an attachment such as a bucket, and the like, to a heavy equipment by using a hydraulic cylinder as a power source. However, a force and a vibration which are applied to a connecting pin for connectine the bucket to the heavy equipment during the performing of a job are transmined to the hydraulic cylinder. As a result, a shearing loading is applied to a rod of the hydraulic cylinder. Accordingly, a leakage of an oil is generated within the hydraulic cylinder during the performing of a job. Further, the hydraulic cylinder can be damaged during, the performing of a job.
U.S. Pat. No. 4,963,071 disclose a device for detachably mounting an attachment such as a bucket, and the like, to a heavy equipment. In the device, a guide is installed to a rear upper side of the attachment. As a result, an mounting effect of the device is enhanced.
However, since a mounting portion for mounting the attachment to the heavy equipment by using the hydraulic cylinder in a lower portion of the attachment is consisted of two cylinders, the manufacturing cost of the device is increased. In addition, since a pin for mountine the attachment to the heavy equipment is inserted into a hole in the vertical direction. a shearing loading is applied to the pin during the performing of a job.
Accordin21y. the structure of the device is weakened.
Meansvhile. if an operator wants to manually mount the attachment to the heavy equipment or to manually detach the attachment from the heav-81 equipment. the operator has got to leave from an operation seat. Accordingly, a working efficiency decreases. Further.
when the attachment is mounted to the heavy equipment or is detached from the heavy 2 equipment. it is required to another auxilian, operator. Alternately, when the anachment is moun[ed to the heavy equipment or is detached from the heavy equipment by, using the hydraulic ci.linder, a high loading which is applied to a connecting portion benveen the attachment and the device during the performing of a job is directly transmitted to the hydraulic cylinder. Accordingly, the endurance of the heavy equipment which is provided with the attachment decreases.
Summan, of the Invention It is an object of the present invention considering the above mentioned problems, to proiide a device for mounting an attachment to a heavy equipment or for detaching the attachment from the heavy equipment capable of rapidly mounting an attachment such as a bucket, and the like, on a working device of an equipment in accordance with a working, condition, and capable of preventing a high loading and a shock generated during the performing a job from transmitting to a hydraulic cylinder for mounting or detaching the attachment, and the device having a simple internal structure, and the endurance thereof is enhanced. and the manufacturing cost thereof is low.
It is other object of the present invention. to provide a device for detachably mounting an attachment to a heavy equipment capable of easily mounting an attachment on a working device of an equipment, and capable of easily detaching the attachment from the working device. thereby the working efficiency is highly enhanced.
It is another object of the present invention. to provide a device for detachably mountinú an attachment to a heavy equipment capable of securing a safety by maintaining the lockinú, state of the device when a hydraulic cylinder for mounting an attachment to a working device or for detaching the attachment from the working device, or hydraulic part-:
are damaged during the performing of a job.
In order to achieve the above objects. according to a preferred first embodiment according to the present invention, the present invention provides a device for mounting an attachment to a working device of an hea,,y equipment, or for detaching the attachment from the working device in accordance with an object to be processed, said device comprising:
a circular bar being mounted to a hook or being detached from the hook, in which the hook is formed a rear upper portion of a bucket; a cover having a predetermined shape, the cover being fixed into an inner side of a plurality of side plates which are formed downwards at the both sides of the circular bar.
a housing for receiving a fixing pin, in which the fixing pin is installed in the both sides of the cover and is mounted to the bucket or detached from the bucket; and a hydraulic cylinder for mounting the fixing pin to the bucket, or for detaching the is fixing pin from the bucket, and the hydraulic cylinder being supported by the fixing pin at its both ends.
The fixing pin is slideably mounted to a connecting member which is connected to a rod portion of the hydraulic cylinder so that a high loading and a shock being applied to the fixing pin during the performing of a certain job can not be transmitted to the hydraulic cylinder in direct.
The device further comprises a pressing plate which is slideably mounted between the fixiDg pin and the hydraulic cylinder so that the high loading- and the shock can not be 4 transtnitted to the hydraulic cylinder in direct.
The device further comprises a pressing plate which is spaced form the both sides of the fixing pin. The pressing plate is mounted to the both sides of the fixing pin. The pressing plate presses the fixing pin by tightly contacting,i-ith the fixing pin.
The fixing pin is slideably mounted to the bucket by a pressing plate which is slideably mounted to an end having a small diameter of a rod portion of the hydraulic cylinder, thereby the fixing pin can move in the horizontal direction during the driving of the hydraulic cylinder.
Further, in order to achieve the above objects, according to a preferred second embodiment according to the present invention, the present invention provides a device for mounting an attachment to a working device of an heavy equipment, or for detaching the attachment from the working device in accordance with an object to be processed, the device comprising:
a circular bar being mounted to a hook or being detached from the hook, in which the book is formed a rear upper portion of a bucket; a cover having a predetermined shape, the cover being fixed into an inner side of a plurality of side plates which are formed downwards at the both sides of the circular bar.
a housing for receiving a fixing pin. in which the fixing pin is installed in the both sides of the cover and is mounted to the bucket or detached from the bucket; an elastic member for elastically biasing an initial state of the fixing pin separated form the bucket. the elastic member being installed in the housing, and a hydraulic cylinder for mounting the fLxing pin to the bucket, or for detaching the fixing pin from the bucket, and the hydraulic cylinder being supported by the fixing pin at its both ends.
The device further comprises an intermediate member for supporting the hydraulic cylinder. The intermediate member is fixed to an end of the housing and is separated from the fixing, pin so that a high loading and a shock being applied to the fixing pin during the performing of a certain job can not be directly n=mitted to the hydraulic cylinder.
The device further comprises a cushion member for alleviating a shock which is 2enerated in the horizontal direction during the driving of the hydraulic cylinder. The cushion member is installed to an inner periphery of the intermediate member.
Further, in order to achieve the above objects, according to a preferred third embodiment according to the present invention, the present invention provides a device for mounting an attachment to a working device of an heavy equipment, or for detaching the attachment from the working device in accordance with an object to be processed, the device comprising:
a circular bar being mounted to a hook or detached from the hook, in which the book is formed a rear upper portion of the bucket:
a cover having a predetermined shape. the cover being fixed into an inner side of a plurality of side plates which are formed downwards at the both sides of the circular bar a fixing pin including a first diameter portion and a second diameter portion. the fixing, pin is installed in the both sides of the cover. and is mounted to the bucket or is detached from the bucket., and 6 a hydraulic cylinder for mounting the fixing pin to the bucket, or for detaching the Cxing pin from the bucket, in which the both ends of the hydraulic cylinder are connected to the first diameter portion through a connecting pin.
C The fixing pin is slideably mounted to a connecting member which is connected to a rod portion of the hydraulic cylinder so that a high loading and a shock being applied to the fixing pin during the performing of a certain job can not be transmitted to the hydraulic cylinder in direct. A first gap is established by a difference between a diameter of the connecting pin and a diameter of a through hole which is formed through a rod portion of the hydraulic cylinder. A second gap is established by a difference between the diameter of the connecting pin and a diameter of a through hole which is formed through the first diameter portion. Preferably, the size of the first gap is larger than that of the second gap.
A third gap is established by a difference between a diameter of an end of the rod portion and a diameter of a combining hole which is formed through the first diameter portion under the state that the fixing pin is connected to the hydraulic cylinder. Preferably, is the size of the second gap is smaller dian that of the third gap. The fourth gap is established by a difference between a second diameter portion of the fixing pin and the diameter of the combining hole formed through the side plate. Preferably, the size of the fourth gap is smaller than that of the first gap, and is smaller than that of the third gap.
Preferably, an inlet port and an outlet port are inserted into a combining hole which is fortned throuLyh the cover in a horizontal line so that the hydraulic cylinder can not be rotated in the cover durin2 the dfiving of the hydraulic cylinder.
As described above. the device for mountinú, an attachment to a workine device of a 7 heavy equipment or for detaching the attachment from the working device according to the present invention can easily mount or detach an attachment such as a bucket. Accordingly. the device offers convenience to a user thereof. Further, the device prevent the high loading and the shock which are generated during the perforri-iing of a job from directly transmitting to the hydraulic cylinder for mounting or detaching the bucket. Accordingly, the leakage of the oil from the hydraulic cylinder is effectively prevented and the durability of the device is highly enhanced. In addition, the economic gains obtained by the device is enhanced.
Z.
Brief Description of the Drawings
The above object and other characteristics and advantages of the present invention will become more apparent by describing in detail a preferred embodiment thereof with reference to the attached drawings, in which:
FIG. 1 is a rear view of a device for mounting an attachment to a working device of a heavy equipment or for detaching the attachment from the working device according to a first embodiment of the present invention; FIG. 2 is an enlarged view for detailedly showing the X portion shown in FIG. I; FIG. 3 shows other example of the device illustrated in FIG. 1; FIG. 4 shows another example of the device illustrated in FIG. I; FIG. 5 is side view for showine a state before that a bucket is mounted to the device according to the present invention; FIG. 6 is side view for showine a state that a bucket has been mountine to the device according to the present invention.
8 FIG. 7 is side view for showing a state that a bucket had mounted to the device according to the present invention; FIG. 8 is a rear view of a device for mountinQ an attachment to a working device of a heavy equipment or for detaching the attachment from the working device according to a second embodiment of the present invention; FIG. 9 shows important parts of the device illustrated in FIG. 8; FIG. 10 shows a separated state of the device illustrated in FIG. 8; FIG. 11 shows a combining state of the device illustrated in FIG. 8; FIG. 12 is a rear view of a device for mounting an attachment to a working device of a heavy equipment or for detaching the attachment from the working device according to a third embodiment of the present invention; FIG. 13 shows important parts of the device illustrated in FIG. 12; FIG. 14 shows a separated state of the device illustrated in FIG. 12; and FIG. 15 shows a combining state of the device illustrated in FIG. 12.
is Detailed Description of the Invention
Hereinafter. a preferred first embodiment of the present invention will be explained in more detail with reference to the accompanyin2 drawings.
FIGs. 1 and 2 illustrate a first example of a device for mounting an attachment to a workine device of a heavy equipment or for detaching the attachment from the working device accordin2 to a first embodiment of the present invention.
Referrine to FIGs. 1 and 2, a circular bar 2 can be mounted to a hook portion 1 9 which is formed at a rear upper side of a bucket 8 (referred to FIG. 5), or can be detached from the hook portion 1. A plurality of inner plates 4 and a plurality of outer plates 5 for receiving a plurality of ribs 3 of the bucket 8 are integrally formed with each other at the both sides of the circular bar 2, and extend downwards. A cover 6 having a predetermined shape is integrally fixed between the inner plates 4.
A housing (A) and a housing (B) for supporting the both ends of a hydraulic cylinder 7 are respectively fixed to the inner plates 4. The hydraulic cylinder 7 is installed in the both sides of the cover 6, and is provided with a plurality of rod portions 7A at its the both ends.
The constitution of the housing (A) is the same as that of the housing (B). Bereinbelow, the constitution of the housing (A) will be described, but the description relating to the constitution of the housing (B) will be omitted.
A spacer 19 for supporting an end of the hydraulic cylinder 7 is mounted to an end of an inner periphery of the housing (A). A bushing-shaped cushion member 9 havkg an elastic force is mounted to a position on which the spacer 19 is mounted. The cushion member 9 can absorb and alleviate a shock which is generated during the driving of the hydraulic cylinder 7 and is applied in the horizontal direction.
A fixing pin 10 is installed in the housing (A). The fixing pin 10 is connected to the rod portion 7A of the hydraulic cylinder 7. The fixing pin 10 is mounted to the ribs 3 of the bucket 8 or is detached from the ribs 3 durino the driving of the hydraulic cylinder 7. The fixing pin 10 is integrally mounted to an outer periphery of a connecting member 11. The connectins! member 11 is connected to the rod portion 7A so that it slideably moves in an inner side of the housing (A) during the drivine of the hydraulic cylinder 7. Further, the fixing pin 10 is slideably mounted to the outer periphery of the connecting member 11 so that it can slideably move in the horizontal direction on the outer periphery of the connecting member 11. Thereby, the fixing pin 10 can prevent a high loading and a shock which are applied to the fixing pin 10 during the performing of a job from directly transmitting to the hydraulic cylinder 7.
A pressing plate 12 is slideably mounted to the connecting member 11 connecting the fixing pin 10 with rod portion 7A. so that it can slideably move in the horizontal direction.
When a M2h loading and a shock are generated by mounting the fixing pin 10 to one side of the connecting member 11 or detaching the fixing pin 10 from the one side of the connecting member 11, the high loading and the shock can be applied to the fixing pin 10 during the performing of a job. At this time, the pressing plate 12 prevents the high loading and the shock from directly n-ansmitting to the hydraulic cylinder 7.
An inlet port 13 and an outlet port 14 of the hydraulic cylinder 7 is respectively inserted into combinine holes 16 and 17 which are formed in a horizontal line at an one side of the outer periphery of the cover 6. Thereby, the inlet port 13 and the outlet port 14 of the hydraulic cylinder 7 prevent the hydraulic cylinder 7 from rotating in the cover 6 during the drivins! of the hydraulic cylinder 7.
FIG. 3 illustrates a second example of the device for mounting an attachment to a workinú! device of a heavy equipment or for detaching the attachment from the working desice accordine to a first embodiment of the present invention.
Referring to FIG. 3, pressing plates 12 and 12A are spaced with each other and are slideabh, mounted to the riiyht side and the left side of the fixing pin 10 by means of the 11 connectine member 11 which is connected to the rod portion 7A of the hydraulic cylinder Thereby, the pressing plates 12 and 12A can slideably move in the horizontal direction.
FIG. 4 illustrates a third example of the device for mounting an attachment to a workine device of a heavy equipment or for detaching the attachment from the working device according to a first embodiment of the present invention.
Referrine to FIG. 4, a small diameter portion 15 is formed at an end of the rod portion 7A of the hydraulic cylinder 7. The fixing pin 10 is mounted to the outer periphery of the small diameter portion 15. A pressing plate 16 is mounted to the end of the small diameter portion 15 so that the fixing pin 10 can slideably move in the horizontal direction during the driving of the hydraulic cylinder 7.
Hereinbelow, an operation of the device according to the present invention as described above will be explained with reference to FIGs 5 to 7.
Referring to FIG. 5, when an operator wants to mount the bucket 8 to a working device of a heavy equipment, the operator primarily moves the heavy equipment, which is is provided with the device for mounting an attachment to the working device or for detaching the attachment from the working device, toward the rear side of the bucket 8 which is positioned on the ground. Thereafter. the user drives a bucket cylinder 17 so that the upper poillon of the circular bar 2 is slanted to the bucket 8. Thereby, the circular bar 2 can be safe]y mounted to the book portion 1 which is formed at the rear upper side of the bucket 8.
Referrine to FIG. 6, under the state that the circular bar 2 is safely mounted to the hook portion 1. the operator raises the bucket 8 toward the heavy equipment by, shrinking the bucket cylinder 17. As a result. a rear bottom face of the bucket 8 is spaced from the 7.
12 L7round. The bucket 8 is received into a space between the inner side plate 4 and the outer side plate 5 due to its own weight. At this time. a combining hole 8A of the bucket 8 is positioned in the center line of the hydraulic cylinder 7 and the fixing pin 10.
Referring to FIG. 7, the rod portions 7A of the hydraulic cylinder 7 extend outivard by introducing a working oil through the inlet port 13 of the hydraulic cylinder 7 into the hydraulic cylinder 7. As a result, the pressing plate 12 which is positioned to the connecting member 11 pushes leftwards the fixing pin 10 which is installed in the housing (A). Accordingly, the fixing pin 10 can slideably move through a through hole 4A of the inner side plate 4, and is inserted into a through hole SA of the outer side plate 5. Thereby, a mounting job of the bucket 8 is completed.
is Therefore, the operator of the working device can perform a predetermined job by usins! the bucket 8 mounted to the working device. The high loading and the shock which are generated from the fixing pin 10 joined to the bucket 8 during the performing of a job can be applied to the fixing pin 10 in the circumferential direction by the ribs 3 of the bucket 8. At this time, the fixing pin 10 and the pressing plate 12 which are joined to the outer periphery of the connecting member 11 are slideably mounted to the rod portion 7A of the hydraulic cylinder 7. Thereby, the fixing pin 10 and the pressing plate 12 can slideably move in the horizontal direction. As a result, the high loading and the shock can not be transmitted to the cylinder 7 in direct.
Meanwhile, in order to detach the bucket 8 from the working device. the working oil is 'Introduced through the outlet port 14 of the hydraulic cylinder 7 into the by.draulic cylinder 7. Then. the rod portion 7A of the hydraulic cylinder 7 is withdrew, and the fixing 10 is detached from the inner side plates 4, the outer side plates 5 and the ribs 3 of the bucket 8 by means of a locking stage 1 1A of the connecting member 11 which is connected to the rod portion 7A. Thereby, the fixing pin 10 returns to the housing (A). As a result. the bucket 8 is separated from the working device.
FIGs. 8 to 11 illustrate a device for mountin. an attachment to a workini, device of a heavv equipment or for detaching the attachment from the working device according to a second embodiment of the present invention.
Referrin2 to the drawings, a circular bar 22 can be mounted to a hook portion 1 which is formed at a rear upper side of a bucket 8 (referred to FIG. 5), or can be detached from the hook portion 1. A plurality of inner plates 24 and a plurality of outer plates 25 for receiving a plurality of ribs 3 of the bucket 8 are integrally formed with each other at the both sides of the circular bar 22, and extend downwards. A cover 26 having a predetermined shape is integrally fixed between the inner plates 24.
A housing (A) and a housing (B) for supporting the both ends of a hydraulic cylinder is 27 are respectively fixed to the inner plates 24. The hydraulic cylinder 27 is installed in the both sides of the cover 26, and is provided with a plurality of rod portions 27A at its the both ends. The constitution of the housing (A) is the same as that of the housin2 (B). Hereinbelow, the constitution of the housing (A) will be described, but the description relatin2 to the constitution of the housing (B) will be omitted.
A fixing pin 21 is installed in the housing (A). Fixing pin 21 can be inserted into or can be released from the combinine hole SA of the bucket 8. An intermediate member 20 is integrally fixed to one side of the housing A. Both ends of the interTnediate member 20 are 14 supported by, the fixing pin 21. Intermediate member 20 supports an end of the hydraulic cylinder 27 so that the high loading which is generated during the performing of a job can not be transmitted to the hydraulic cylinder 27.
A bushing-shaped cushion member 24 having an elastic force is mounted to an inner periphery of the intermediate member 20. The cushion member 24 can alleviate a loadins! which is generated during the driving of the hydraulic cylinder 27 and is applied in the horizontal direction. An elastic member 23 for returning the fixing pin 21 joined to the ribs 3 of the bucket 8 during the shrinkage of the hydraulic cylinder 27 is installed in the housing (A) under the state that the fixing pin 21 is separated from the bucket 8.
An inlet port 28 for supplying an oil to the hydraulic cylinder 27 and an outlet port 29 for returnins! the oil from the hydraulic cylinder 27 prevent the hydraulic cylinder 27 from rotating in cover 6 during the driving of the hydraulic cylinder 27. Combining holes 30 and 31 are formed in a horizontal line at an outer periphery of the cover 26. Combining holes 30 and 31 determine a FLxing angle of the inlet port 28 and the outlet port 29 in relation to a is axiaflv center line of the hydraulic cylinder 27.
Hereinbelow, an operation of the device according to the second embodiment of the present invention as described above will be explained.
Referrine to FIGs. 10 and 11, when an operator wants to mount the bucket 8 to a workin2 device of a heavy equipment, the operator primarily moves the heavy equipment.
which is provided with the device for mounting an attachment to the working device or for detachine the attachment from the workin2 device. toward the rear side of the bucket 8 which is positioned on the ground. Thereafter. the user drives a bucket cylinder 17 and 18 so that the upper portion of the circular bar 22 is slanted to the bucket 8. Thereby. the circular bar 2 can be safely mounted to the hook portion 1,i-hich is formed at the rear upper side of the bucket 8.
Under the state that the circular bar 22 is safely mounted to the hook portion 1. the operator raises the bucket 8 toward the heavy equipment by shrinking the bucket cylinder 17.
As a result. the hydraulic cylinder 27 and the Rxing, pin 21 are positioned in the center line of the combining hole 8A which is formed at ribs 3 of the bucket 8.
At this time, as shown in FIG. 11, the rod portions 27A of the hydraulic cylinder 27 extend outward by introducing a working oil through the inlet port 28 of the hydraulic cylinder 27 into the hydraulic cylinder 27. As a result, the rod portions 27A pass through the intermediate member 20, and pushes leftwards the fixing pin 21 which is installed in the housing (A). Accordingly, the fixing pin 21 can slideably move through a through hole 24A of the inner side plate 24, the combining hole 8A of the ribs 3, and is inserted into a through hole 25A of the outer side plate 25. Thereby, a mounting job of the bucket 8 is completed.
is At this time, the elastic member 23 which is installed in the housing (A) is compressed by moving the fixing pin 21.
When an operator performs a predetermined job by using the bucket 8 mounted to the m,orkin!z device. The high loading and the shock which are generated from the fixine pin 21 joined to the bucket 8 during the performing of the job can be applied to the fixing pin 21.
At this time, since the hydraulic cylinder 27 is supported by the fixing pin 21 and the intermediate member 20 which is supported by the fixing pin 21 at its the both ends. the high loadin2 and the shock which are applied to the fixing pin 21 can not be transmitted to the 16 cylinder 27 in direct.
Meanwhile, as shown in FIG. 10, when an operator wants to separate the bucket 8 from the device for mounting an attachment to a working device ofa heavy equipment or for detachincy the attachment from the workinQ device, the operator allows an operation oil for introducing through the outlet 2 9 of the hydraulic cylinder 27 into the hydraulic cylinder 27.
As a result, the hydraulic cylinder 27 is withdrew. Accordingly, the fixing pin 21 is detached from the outer side plates 25, the ribs 3 of the bucket 8, the inner side plates 24 by means of the restoring force of the elastic member 23 which is installed in the bousing, (A). And then, the fixing pin 21 returns to the housing (A), thereby the bucket 8 can be detached from the workina device.
FIGs. 12 to 15 illustrate a device for mounting an attachment to a working device of a heavy equipment or for detaching the attachment from the working device according to a third embodiment of the present invention.
Referring to the drawings, a circular bar 35 can be mounted to a hook portion 1 which is formed at a rear upper side of a bucket 8 (referred to FIG. 5), or can be detached from the hook portion 1. A plurality of inner plates 32 and a plurality of outer plates 33 for receiving a plurality of ribs 3 of the bucket 8 are integrally formed with each other at the both sides of the circular bar 35 and extend downwards. A box-shaped cover 34 is integrally fixed between the inner plates 32 by welding.
Combining holes SA are formed at lower portions of ribs 3 of the bucket 8. Since the circular bar 35 is safely positioned in the hook portion 1 of the bucket 8 and is tilted toward the equipment by, withdrawing the bucket cylinder 17, the center line of the combining holes 17 8A is positioned at the same center line as the hydraulic cylinder 37 which is received in the cover 34.
A fixing pin 36 is mounted into the combining holes 8A or is detached from the combininLY holes 8A by driving the hydraulic cylinder 37. A combining hole 39 is formed through a first diameter portion 38 of the fixing pin 36. The rod portion 37A of the hydraulic cylinder 27 is inserted into the combining hole 39. A through hole 41 and 42 are formed through the rod portion 37A and the first diameter 38 of the fixing pin 36 in the circumferential direction, respectively. When the fixing pin 36 is connected to the rod portion 37A, the connecting pin 40 is inserted into the through holes 41 and 42.
At this time, the fixing pin 36 is slideably mounted to the rod portion 37A in the axial direction so that the high loading and the shock which are applied to the fixing pin 36 during the performing of a job can not be ninsmitted to the hydraulic cylinder 27.
A diameter of the connecting pin 40 is smaller than a diameter of the through hole 41 which is forTned through the rod portion 37A. As a result, a first gap is established by a is difference between the diameter of the connecting pin 40 and the diameter of the through hole 41. The diameter of the connecting pin 40 is smaller than a diameter of the through hole 42 which is formed through the first diameter portion 38 of the fixing pin 36. If,4,e call a gap. which is established by a difference between the diameter of the connecting pin 40 and the diameter of the through hole 42. to a second gap, the size of the first gap is larger than 2 C,' that of the second gap.
When the fixing pin 36 is connected to the hydraulic cylinder 37, a gap is established by, a difference between a diameter of the end 37B of the rod portion 37A and the diameter 18 of the combining hole 39 which is formed through the first diameter portion 38. If we call the gap to a third gap, the size of the first eap is smaller than that of the third cap.
c In addition, a gap is established by a difference between a diameter of the second diameter portion 36A of the fixing pin 36 and a diameter of the combining holes 46 which are formed throuch the side plate 32 and 33. If we call the gap to a fourth gap, the size of the fourth cap is smaller than that of the first gap and that of the third gap.
An inlet port 43 for supplying an oil to the hydraulic cylinder 37 and an outlet port 44 for returnine the oil from the hydraulic cylinder 37 are inserted into combining holes 42 which are formed through a plate 34A in a horizontal line. lle inlet port 43 and the outlet port 4.4 prevent the hydraulic cylinder 37 and the fixing pin 36 from rotating in cover 6 during the driving of the hydraulic cylinder 37.
A split pin 45 prevents the connecting pin 40 from detaching from the through holes 41 and 42 which are respectively formed through the rod portion 37A of the hydraulic cylinder 37 and the first diameter portion 38.
Hereinbelow, an operation of the device according to the third embodiment of the present invention as described above will be explained.
Referrine to FIG. 14 and 15, when an operator wants to mount the bucket 8 to a workine device of a heavy equipment, the operator primarily moves the heavy equipment.
which is provided with the device for mounting an attachment to the working device or for detachin2 the attachment from the workin2 device. toward the rear side of the bucket -8 which is positioned on the ground. Thereafter. the user drives a bucket cylinder 17 and 18 so that the upper portion of the circular bar 35 is slanted to the bucket 8. Thereby. the circular 19 bar J35 can be safely mounted to the hook portion 1 which is formed at the rear upper side of the bucket 8.
Under the state that the circular bar 35 is safely mounted to the hook portion 1, the operator raises the bucket 8 toward the heavy equipment by shrinking the bucket cylinder 17. The ribs 3 of the bucket 8 are received into a space between the inner side plate 32 and the outer side plate 33. At this time, the hydraulic cylinder 37 and the fixing pin 36 are positioned in the center line of the combining hole 8A of the bucket 8.
At this time, as shown in FIG. 15, the rod portions 37A of the hydraulic cylinder 37 extend outward by introducing a working oil through the inlet port 43 of the hydraulic cylinder 37 into the hydraulic cylinder 37. As a result, the rod portions 37B of the rod portions 37A is brought into contact with the inner side face 38A of the combining hole 39 which is formed through the first diameter portion 38 of the fixing pin 36. Tbereafter, the rod portions 36B pushes the fixing pin 36 so that the fixing pin 36 passes through an inner hole 48 of the boss 47 which is formed at the inner side plate 32, the through hole 8A which is formed through the ribs 3 of the bucket 8, and a boss 49 of the outer side plate 33 in due sequence. llereby, a mounting job of the bucket 8 is completed.
When an operator performs a predetermined job by using the bucket 8 mounted to the working device, the high loading and the shock which are generated from the fixine pin 36 joined to the bucket 8 during the performing of the job can be applied to the fixing pin 36.
However, since the fixing pin 36 is slideably mounted to the rod portion 37A of the h\.draulic cs,Iinder 37, the high loading and the shock which are applied to the fixing pin 36 can not be transmitted to the cylinder 37 in direct.
A Lap is established by a difference between the diameter of the fixing pin 36 and the diam.-ter of the boss 47 which is formed through the inner side plate 32. If we call the gap to a fifth gap, the size of the fifth gap is larger than that of the third gap which is established by, the difference between the diameter of the end 37B of the rod portion 37A and the diameter of the combining hole 39 which is formed throu!zh the first diameter portion 38. Further. the size of the fifth gap is larger than that of the flu-st gap which is established by the difference between the diameter of the connecting pin 40 and the diameter of the through hole 41.
Meanwhile, as shown in FIG. 14, when an operator wants to separate the bucket 8 from the device for mounting an attachment to a working device of a heavy equipment or for detaching the attachment from the working device, the operator allows an operation oil for introducing through the outlet 44 of the hydraulic cylinder 37 into the hydraulic cylinder 37.
As a result, the hydraulic cylinder 37 is withdrew. Accordingly, the connecting pin 40 is brou--ht into contact with the through hole 42 which is forTned through the fixing pin 36.
Thereby, the fixing pin 36 returns from the inner side plate 32, the outer side plate 33, and is the ribs 3 of the bucket 8. As a result, the bucket 8 can be separated from the working device.
Meanwhile, in FIG. 12, the reference numeral '50' represents a connection place in which the bucket 8 moving forwards and backwards by driving the bucket cylinder 17 is rotatably connected to the rink (C). The reference numeral '51' represents a fixing place to which an end of boom (D) for raising and descending the bucket 8 by driving the boom cylin,Jer 18 is pivotally fixed.
As described above. the device for mountin2 an attachment to a workine device of a 21 hea%-%. equipment or for detaching the attachment from the working device according to the present invention can easily mount or detach an attachment such as a bucket. Accordingly. the device offers convenience to a user thereof. Further, the device prevent the high loading and the shock which are generated during the performing of a job from directly, transmitting to the hydraulic cylinder for mounting or detaching the bucket. Accordingly, the leakage of the ofl from the hydraulic cylinder is effectively, prevented and the durability of device is W2hly, enhanced. In addition, the economic gains obtained by the device is enhanced.
While the present invention has been particularly shown and described with reference to a particular embodiment thereof, it will be understood by those skilled in the art that various changes in form and details may be effected therein without departing from the spirit and scope of the invention as defined by the appended claims.
22

Claims (13)

What is claimed is:
1 A device for mounting an attachment such as a bucket to a workine device of c an heaiy equipment. or for detaching the attachment from the working device in accordance with an object to be processed, said device comprising:
a circular bar being mounted to a hook or being detached from the hook, in which the hook is formed a rear upper portion of the bucket. a cover having a predetermined shape, said cover being fLixed into an inner side of a plurality of side plates which are formed downwards at the both sides of said circular bar; a housing for receiving a fixing pin, in which the fixing pin is installed in the both sides of said cover and is mounted to the bucket or is detached from the bucket; and a hydraulic cylinder for mounting the fixing pin to the bucket, or for detaching the fixing pin from the bucket, and said hydraulic cylinder being supported by the fixing pin at its both ends.
2. A device as claimed in claim 1, wherein the fixing pin is slideably mounted to is a connectin2 member which is connected to a rod portion of said hydraulic cylinder so that a hieh loadinúz and a shock being applied to the fixing pin during the performing of a certain job can not be transmitted to said hydraulic cylinder in direct.
3. A device as claimed in claim 2. flinher comprising a pressin-2 plate, wherein said pressing plate is slideably mounted between the fixing pin and the hydraulic cylinder so 23 that the hiah loadine and the shock can not be transmitted to said hydraulic cylinder in direct.
4. A device as claimed in claim 2. further comprising a pressing plate. wherein said pressing plate is spaced form the both sides of said fixing pin, and is mounted to the both sides of said fixing pin, and said pressing plate presses the fixing pin by tightly contactine with the fixing pin.
5. A device as claimed in claim 1, wherein the fixing pin is slideably mounted to the bucket by a pressing plate which is slideably mounted to an end having a small diameter of a rod portion of said hydraulic cylinder, thereby the fixing pin can move in the horizontal direction during the driving of the hydraulic cylinder.
6. A device for mounting an attachment such as a bucket to a working device of an heavy equipment, or for detaching the attachment from the working device in accordance with an object to be processed, said device comprising: a circular bar being mounted to a hook or being detached from the hook. in which the is hook is formed a rear upper portion of the bucket.
a cover having a predetermined shape. said cover being fixed into an inner side of a pluralin of side plates which are formed downwards at the both sides of said circular bar. a housinR for receiving a fixing pin. in which the fixing pin is installed in the both sides of said cover and is mounted to the bucket or is detached from the bucket.
24 an elastic member for elastically biasing an initial state of the fixing pin separated form the bucket, said elastic member beine installed in said housing; and a hydraulic cylinder for mounting the fLxing pin to the bucket, or for detaching the fixing pin from the bucket, and-said hydraulic cylinder being supported by the Lxing pin at its both ends.
7. A device as claimed in claim 6, further comprising an intermediate member for supporting the hydraulic cylinder, wherein said intermediate member is fixed to an end of said housin. and is separated from the fixing pin so that a high loading and a shock being applied to the fixing pin during the perfonning- of a certain job can not be directly U-ansrilitted to said hydraulic cylinder.
8. A device as claimed in claim 7, further comprising a cushion member for alleviating a shock which is generated in the horizontal direction during the driving of id g sa hydraulic cylinder, wherein said cushion member is installed to an inner periphery, of said is intermediate member.
9. A device for mounting an attachment such as a bucket to a working device of an heavy equipment. or for detaching the attachment from the working device in accordance with an object to be processed, said device comprising:
a circular bar being mounted to a hook or being detached from the hook. in which the hook is formed a rear upper portion of the bucket:
a cover having a predetermined shape. said cover being fixed into an inner side of a plurality of side plates which are formed downwards at the both sides of said circular bar.
a fixing pin including a first diameter portion and a second diameter portion. said fixing pin is installed in the both sides of said cover, and is mounted to the bucket or is detached from the bucket; and a hydraulic cylinder for mounting the fixing pin to the bucket, or for detaching the fixing pin from the bucket, in which the both ends of said hydraulic cylinder are connected to said first diameter portion through a connecting pin.
10. A device as claimed in claim 9, wherein the fixing pin is slideably mounted to a connecting member which is connected to a rod portion of said hydraulic cylinder so that a high loading and a shock being applied to the fixing pin during the performing of a certain job can not be transmitted to said hydraulic cylinder in direct, and a first gap is established by a difference between a diameter of the connecting pin and a diameter of a through hole which is formed through a rod portion of said hydraulic cylinder, and a second gap is established by a difference between the diameter of the connecting pin and a diameter a throueh hole which is formed through said first diameter portion, and the size of the first Lap is lareer than that of the second gap.
11. A device as claimed in claim 9. nterein a third gap is established by. a difference between a diameter of an end of the rod portion and a diameter of a combining 26 hole which is formed through the first diameter portion under the state that said fixing pin is connected to said hydraulic cylinder, and the size of the second gap is smaller than that of the third gap.
12. A device as claimed in claim 9, wherein a fourth gap is established by a difference between a diameter of a second diameter portion of said fixing pin and the diameter of the combining hole formed through said side plate, and the size of the fourth gap is smaller than that of the first gap, and is smaller than that of the third gap.
13. A device as claimed any one of claim 1, 6, 9, wherein an inlet port and an outlet port are inserted into a combining hole which is forTned through said cover in a horizontal line so that the hydraulic cylinder can not be rotated in said cover during the driving of said hydraulic cylinder.
27
GB9625713A 1995-12-30 1996-12-11 Device for Connecting Iplement to Machine Withdrawn GB2308839A (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR1019950068498A KR100202088B1 (en) 1995-12-30 1995-12-30 Attachment putting onand off device for heavy equipment
KR1019950068499A KR100202087B1 (en) 1995-12-30 1995-12-30 Attachment puting on and off device for heavy equipment
KR19960026072 1996-06-29

Publications (2)

Publication Number Publication Date
GB9625713D0 GB9625713D0 (en) 1997-01-29
GB2308839A true GB2308839A (en) 1997-07-09

Family

ID=27349275

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9625713A Withdrawn GB2308839A (en) 1995-12-30 1996-12-11 Device for Connecting Iplement to Machine

Country Status (3)

Country Link
JP (1) JPH09195303A (en)
DE (1) DE19651507A1 (en)
GB (1) GB2308839A (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2333760A (en) * 1998-01-30 1999-08-04 Caterpillar Inc Method of visibly ensuring quick coupling
FR2774407A1 (en) * 1998-01-30 1999-08-06 Caterpillar Inc Extended vertical reach lift arm assembly for articulated wheel loader
US6609587B1 (en) 1998-01-30 2003-08-26 Caterpillar Inc Frame assembly for a work machine
GB2395705B (en) * 2001-09-26 2005-06-15 Hanwoo Tnc Corp Attachment coupling device for heavy machinery
CN102312456A (en) * 2011-10-12 2012-01-11 无锡开普机械有限公司 Quick-change device

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1314744B1 (en) * 2000-05-19 2003-01-03 Lameter S R L QUICK ATTACHMENT DEVICE FOR EXCAVATOR TOOLS.
AU2004201141B2 (en) * 2003-03-21 2009-09-17 Darryl Bates Excavator tools
JP4867371B2 (en) * 2006-02-01 2012-02-01 コベルコ建機株式会社 Pin coupling device
EP3244079B1 (en) 2016-05-11 2024-01-24 BAUER Maschinen GmbH Bolted assembly and swing arm with bolted assembly for construction machine
JP2019132016A (en) * 2018-01-30 2019-08-08 鈴健興業株式会社 Attachment detachable mechanism and work machine

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5010962A (en) * 1990-04-30 1991-04-30 Caterpillar Inc. Indicating apparatus for a coupling
WO1995021969A1 (en) * 1994-02-09 1995-08-17 Raunisto, Airi Quick coupling assembly
EP0671512A2 (en) * 1994-03-12 1995-09-13 O&K ORENSTEIN & KOPPEL AG Hydraulic locking device for quick couplings in construction machines

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5010962A (en) * 1990-04-30 1991-04-30 Caterpillar Inc. Indicating apparatus for a coupling
WO1995021969A1 (en) * 1994-02-09 1995-08-17 Raunisto, Airi Quick coupling assembly
EP0671512A2 (en) * 1994-03-12 1995-09-13 O&K ORENSTEIN & KOPPEL AG Hydraulic locking device for quick couplings in construction machines

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2333760A (en) * 1998-01-30 1999-08-04 Caterpillar Inc Method of visibly ensuring quick coupling
FR2774406A1 (en) * 1998-01-30 1999-08-06 Caterpillar Inc Verifying method for properly coupling an implement assembly to a lift arm assembly
FR2774407A1 (en) * 1998-01-30 1999-08-06 Caterpillar Inc Extended vertical reach lift arm assembly for articulated wheel loader
GB2333760B (en) * 1998-01-30 2001-10-24 Caterpillar Inc Method of verifying coupling of an implement to a work machine
US6609587B1 (en) 1998-01-30 2003-08-26 Caterpillar Inc Frame assembly for a work machine
GB2395705B (en) * 2001-09-26 2005-06-15 Hanwoo Tnc Corp Attachment coupling device for heavy machinery
CN102312456A (en) * 2011-10-12 2012-01-11 无锡开普机械有限公司 Quick-change device

Also Published As

Publication number Publication date
JPH09195303A (en) 1997-07-29
GB9625713D0 (en) 1997-01-29
DE19651507A1 (en) 1997-07-03

Similar Documents

Publication Publication Date Title
US5865594A (en) Device for detachably mounting a work member to construction equipment
GB2308839A (en) Device for Connecting Iplement to Machine
US5462309A (en) Stackable counterweight arrangement
US2847230A (en) Fifth wheel construction for force distribution between tractor and semitrailer
EP0913528A3 (en) Vertical engagement hydraulic tool coupler
GB2161784A (en) Handling or working vehicle
US5110169A (en) Grease loaded grapple dampener
CA2061989C (en) Vibro-isolating support structure for engine of industrial vehicle
JPH08209730A (en) Link motion for connecting operating tool to machine
US6048161A (en) Vehicle having a lifting boom, which can be used as an agricultural machine
EP0791693A4 (en) Working vehicle
GB2024113A (en) Mounting of a tilt cabin in a working vehicle
US3873222A (en) Roll-over protective structure mounting
GB2125004A (en) Telescopic boom with means for supporting and/or guiding its constitutive sections
US5848807A (en) Frame construction
KR100202088B1 (en) Attachment putting onand off device for heavy equipment
JP7344844B2 (en) construction machinery
KR100316544B1 (en) Wheeled crane
JP2831201B2 (en) Mounting structure of tractor rear frame device
EP0399043A4 (en) Working machine for construction vehicles and method of operating same
JPH0615980Y2 (en) Compactor for forklift
JPS60481Y2 (en) cylinder device
JPH1016572A (en) Engine supporting structure of working vehicle
KR19980074236A (en) Attachment detachment device of heavy equipment
KR200213703Y1 (en) Boom Centrifugal Structure of Mobile Crane

Legal Events

Date Code Title Description
732E Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)