CA1071151A - Apparatus for attaching implement to earth moving vehicle - Google Patents
Apparatus for attaching implement to earth moving vehicleInfo
- Publication number
- CA1071151A CA1071151A CA281,959A CA281959A CA1071151A CA 1071151 A CA1071151 A CA 1071151A CA 281959 A CA281959 A CA 281959A CA 1071151 A CA1071151 A CA 1071151A
- Authority
- CA
- Canada
- Prior art keywords
- couplers
- implement
- pair
- lock
- lift arms
- 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.)
- Expired
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
- E02F3/3618—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
- E02F3/3663—Devices to connect tools to arms, booms or the like of the quick acting type, e.g. controlled from the operator seat hydraulically-operated
Abstract
TITLE OF THE INVENTION
APPARATUS FOR ATTACHING IMPLEMENT
TO EARTH MOVING VEHICLE
ABSTRACT OF THE DISCLOSURE
An apparatus for attaching implement to earth moving vehicle, comprising a pair of lift arms for lifting the implement, pair of tilt rods for effecting tilting motion of the implement, pair of lower couplers pivotally connected to said lift arms t one end thereof, and a pair of upper couplers pivotally connect ed to said pair of tilt rods, said upper and lower couplers being pivotally connected with each other. Said pair of lower couplers and pair of upper couplers are transversely connected by connect-ing beams, respectively. Said connecting beams are adapted to engage with C-shaped hooks fixedly secured to the rear surface of the implement.
APPARATUS FOR ATTACHING IMPLEMENT
TO EARTH MOVING VEHICLE
ABSTRACT OF THE DISCLOSURE
An apparatus for attaching implement to earth moving vehicle, comprising a pair of lift arms for lifting the implement, pair of tilt rods for effecting tilting motion of the implement, pair of lower couplers pivotally connected to said lift arms t one end thereof, and a pair of upper couplers pivotally connect ed to said pair of tilt rods, said upper and lower couplers being pivotally connected with each other. Said pair of lower couplers and pair of upper couplers are transversely connected by connect-ing beams, respectively. Said connecting beams are adapted to engage with C-shaped hooks fixedly secured to the rear surface of the implement.
Description
1071~51 BACKGROUND OF THE INVENTION
This invention relates to an apparatus for attaching implements to earth moving vehicles.
Heretofore attaching an implement to or repla~ing it from an earth moving vehicle required complicated and time consuming procedures. For example, when it is required to replace an implement from the vehicle, it is generally necessary to move the implement by means of a crane, etc. in order to align pin holes of the implement with those of lift arms of the vehicle. After aligning pin holes, pins are inserted therethrough so as to attach the implement to the vehicle. It is difficult to align pin holes formed in the implement and the lift arms of the vehicle by moving the vehicle itself without moving the implement by the crane or the like.
SUMMARY OF THE INVENTION
It is, therefore, an object of an aspect of the present invention to provide an apparatus for attaching implements to an earth moving vehicle wherein replacement of the implements can be carried out easily.
An object of an aspect of the present invention is to provide an apparatus for attaching implements to an earth moving vehicle wherein replacement of the implements can be carried out from the driver's cab.
In accordance with one aspect of this invention there ar is provided an apparatus for attaching~implement to~earth moving vehicle, said implement having a C-shaped hook formed on the rear surface thereof, the apparatus comprising: a pair of lift arms for lifting the implement; a pair of tilt rods for effecting tilting motion of the implement; a pair of lower couplers pivotally connected to said lift arms at one 107~151 end thereof; a pair of upper couplers pivotally connected to said tilt rods, said lower and upper couplers being pivotally connected with each other; an upper connecting beam provided between said pair of upper couplers for connecting the same;
a lower connecting beam provided between said pair of lower couplers for connecting the same, said upper and lower con-necting beams being adapted to engage with the C-shaped hook formed on the rear surface of the implement; and lock means for locking said lower couplers relative to said upper couplers thereby preventing pivotal movement with each other.
In accordance with one aspect of this invention there is provided an apparatus for attaching an implement to an earth moving vehicle, said implement having a C-shaped hook formed on a rear surface thereof, the apparatus comprising: a pair of lift arms for lifting the implement; a pair of tilt rods for effecting tilting motion of the implement; a pair of lower couplers pivotally connected to said lift arms at one end thereof; a pair of upper couplers pivotally connected to said tilt rods, said lower and upper couplers being pivotally con-nected with each other; an upper connecting beam providedbetween said pair of upper couplers for connecting the same;
a lower connecting beam provided between said pair of lower couplers for connecting the same, said upper and lower con-necting beams being adapted to engage with the C-shaped hook C formed on the rear surface of the implement; and lock means ~ 7e~>7''~Q/~
for~a~tom.~tically locking said lower couplers relative to said upper couplers thereby preventing pivotal movement with each other when said upper and lower couplers are accommodated in said C-shaped hooks while allowing to remain in an unlock-ed position during the pivotal movement of said lower couplers ! relative to said upper couplers.
This invention relates to an apparatus for attaching implements to earth moving vehicles.
Heretofore attaching an implement to or repla~ing it from an earth moving vehicle required complicated and time consuming procedures. For example, when it is required to replace an implement from the vehicle, it is generally necessary to move the implement by means of a crane, etc. in order to align pin holes of the implement with those of lift arms of the vehicle. After aligning pin holes, pins are inserted therethrough so as to attach the implement to the vehicle. It is difficult to align pin holes formed in the implement and the lift arms of the vehicle by moving the vehicle itself without moving the implement by the crane or the like.
SUMMARY OF THE INVENTION
It is, therefore, an object of an aspect of the present invention to provide an apparatus for attaching implements to an earth moving vehicle wherein replacement of the implements can be carried out easily.
An object of an aspect of the present invention is to provide an apparatus for attaching implements to an earth moving vehicle wherein replacement of the implements can be carried out from the driver's cab.
In accordance with one aspect of this invention there ar is provided an apparatus for attaching~implement to~earth moving vehicle, said implement having a C-shaped hook formed on the rear surface thereof, the apparatus comprising: a pair of lift arms for lifting the implement; a pair of tilt rods for effecting tilting motion of the implement; a pair of lower couplers pivotally connected to said lift arms at one 107~151 end thereof; a pair of upper couplers pivotally connected to said tilt rods, said lower and upper couplers being pivotally connected with each other; an upper connecting beam provided between said pair of upper couplers for connecting the same;
a lower connecting beam provided between said pair of lower couplers for connecting the same, said upper and lower con-necting beams being adapted to engage with the C-shaped hook formed on the rear surface of the implement; and lock means for locking said lower couplers relative to said upper couplers thereby preventing pivotal movement with each other.
In accordance with one aspect of this invention there is provided an apparatus for attaching an implement to an earth moving vehicle, said implement having a C-shaped hook formed on a rear surface thereof, the apparatus comprising: a pair of lift arms for lifting the implement; a pair of tilt rods for effecting tilting motion of the implement; a pair of lower couplers pivotally connected to said lift arms at one end thereof; a pair of upper couplers pivotally connected to said tilt rods, said lower and upper couplers being pivotally con-nected with each other; an upper connecting beam providedbetween said pair of upper couplers for connecting the same;
a lower connecting beam provided between said pair of lower couplers for connecting the same, said upper and lower con-necting beams being adapted to engage with the C-shaped hook C formed on the rear surface of the implement; and lock means ~ 7e~>7''~Q/~
for~a~tom.~tically locking said lower couplers relative to said upper couplers thereby preventing pivotal movement with each other when said upper and lower couplers are accommodated in said C-shaped hooks while allowing to remain in an unlock-ed position during the pivotal movement of said lower couplers ! relative to said upper couplers.
- 2 - ~ ~.
Lock releasing means may be provided on said lift arms of the vehicle so as to release said lock means from the driver's cab when it becomes necessary.
Other objects, features and advantages of the present invention will be readily apparent from the following descrip-tion taken in conjunction with the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
FIGURE 1 is a perspective view of the present invention;
FIGURE 2 is a partial back elevational view of Fig. l;
FIGURE 3 is a cross-sectional view taken along the line III - III in Fig. 2;
FIGURE 4 is a front elevational view partially in cross-section of lower couplers according to the present invention;
FIGURE 5 is a side elevational view of Fig. 4;
FIGURE 6 is similar to Fig. 4 but showing upper couplers according to the present invention;
FIGURE 7 is a side elevational view of Fig. 6;
FIGURE 8 is an enlarged cross-sectional view of lock means according to the present invention;
FIGURE 9 is a front elevational view of Fig. 6;
FIGURE 10 is a plan view thereof;
- 2a -107~51 Fig. 11 is a perspective view of an implement according to the present invention;
Fig. 12-I to Fig. 12-V are explanational views showing procedures for removing the implement from the vehicle according to the present invention;
Fig. 13 is a side elevational view partially in cross-, section of lock releasing means according to the present inven-!l' tion; and ¦I Fig. 14 is a plan view partially in cross-section of Fig.
10 1',13.
DETAILED DESCRIPTION OF THE INVENTION
The present invention will now be described in detail below with reference to drawings. Reference numeral 1 denotes a ~¦ lower coupler having a beam 2. Fixedly secured to both ends of the beam 2 are inner plates 3. Referring to Figure 4, each of the !~ inner plate 3 has a pin hole 4 formed in the upper part thereof.
¦! Further, the upper edge of the inner plate is formed in a circular cam portion 5 defined about the pin hole 4. Each of the inner ~Iplate 3 is connected through a connecting plate 6 with an outer 1i plate 7 disposed in parallel therewith. The outer plate 7 has a pin hole 4' formed in the upper part thereof. Further, the outer plate 7 has a stopper 8 formed in the upper edge portion thereof.
The inner and outer plates 3 and 7 have pin holes 9 and 9' formed in the lower parts thereof, respectively.
¦I Connected to the lower coupler l having pins 10 inserted into the pin holes 9 and 9' are a pair of lift arms 11 of a vehicle .
Reference numeral 12 denotes an upper coupler having a bea~
13. Fixedly secured to both ends of the beam 13 are inner plates 1! 14. Each of the inner plate 14 is fixedly secured through a con-'Inecting plate 15 to an outer plate 16 disposed in parallel there-,. I
Lock releasing means may be provided on said lift arms of the vehicle so as to release said lock means from the driver's cab when it becomes necessary.
Other objects, features and advantages of the present invention will be readily apparent from the following descrip-tion taken in conjunction with the accompanying drawings.
BRIEF DESCRIPTION OF THE DRAWINGS
FIGURE 1 is a perspective view of the present invention;
FIGURE 2 is a partial back elevational view of Fig. l;
FIGURE 3 is a cross-sectional view taken along the line III - III in Fig. 2;
FIGURE 4 is a front elevational view partially in cross-section of lower couplers according to the present invention;
FIGURE 5 is a side elevational view of Fig. 4;
FIGURE 6 is similar to Fig. 4 but showing upper couplers according to the present invention;
FIGURE 7 is a side elevational view of Fig. 6;
FIGURE 8 is an enlarged cross-sectional view of lock means according to the present invention;
FIGURE 9 is a front elevational view of Fig. 6;
FIGURE 10 is a plan view thereof;
- 2a -107~51 Fig. 11 is a perspective view of an implement according to the present invention;
Fig. 12-I to Fig. 12-V are explanational views showing procedures for removing the implement from the vehicle according to the present invention;
Fig. 13 is a side elevational view partially in cross-, section of lock releasing means according to the present inven-!l' tion; and ¦I Fig. 14 is a plan view partially in cross-section of Fig.
10 1',13.
DETAILED DESCRIPTION OF THE INVENTION
The present invention will now be described in detail below with reference to drawings. Reference numeral 1 denotes a ~¦ lower coupler having a beam 2. Fixedly secured to both ends of the beam 2 are inner plates 3. Referring to Figure 4, each of the !~ inner plate 3 has a pin hole 4 formed in the upper part thereof.
¦! Further, the upper edge of the inner plate is formed in a circular cam portion 5 defined about the pin hole 4. Each of the inner ~Iplate 3 is connected through a connecting plate 6 with an outer 1i plate 7 disposed in parallel therewith. The outer plate 7 has a pin hole 4' formed in the upper part thereof. Further, the outer plate 7 has a stopper 8 formed in the upper edge portion thereof.
The inner and outer plates 3 and 7 have pin holes 9 and 9' formed in the lower parts thereof, respectively.
¦I Connected to the lower coupler l having pins 10 inserted into the pin holes 9 and 9' are a pair of lift arms 11 of a vehicle .
Reference numeral 12 denotes an upper coupler having a bea~
13. Fixedly secured to both ends of the beam 13 are inner plates 1! 14. Each of the inner plate 14 is fixedly secured through a con-'Inecting plate 15 to an outer plate 16 disposed in parallel there-,. I
-3- 1 ' ' : . :
.
.
;~ i 07~151 Il with, Further, each of the inner and outer plates 14 and 16 has j'l pin holes 17, 17' and 18, 18' formed in the upper and lower parts i ¦i thereof, respectively. (refer to Figure 6).
The upper part of the lower coupler 1 is inserted into i the lower part of the upper coupler 12. The upper and lower ¦, couplers 12 and 1 are interconnected by means of pins 19 each be-C 1l ing inserted into the pin holes 18, 18', ~ d~d 9~ . The stopper 8 ¦! is adapted to contact with the connecting plate 15 when the upper ¦ coupler 12 is aligned with the lower coupler 1.
¦ Connected to the upper coupler 12 having pins 20 inserted into the pin holes 17 and 17' are tilt rods 21 of the vehicle.
Referring to Figure 8, the inner plate 14 of the upper coupler 12 have a lock means 22 fixedly secured thereto. The lock i means 22 comprises a block 23 fixedly secured to the inner plate 14. The block 23 has vertically extending holes 24 and 25 formed therein. Inserted into the hole 24 is a lock pin 26 having a spring seat iK~ formed thereon. The lock pin 26 has a notch 28 ¦ formed in the upper end thereof, and also has a pin 29 attached ! to the lower part thereof. The block 23 has a spring retainer ¦plate 30 fixedly secured thereto, and a spring 31 is interposed ¦between the spring retainer plate 30 and the spring seat 27. In-serted into the hole 25 is a rod 32 urged downwardly by the bias-ing force of a spring 33. A ~g~k 34 is attached to the upper end of the rod 32. The block 23 has in the upper part thereof a lever ¦35 pivotally mounted by means of a pin 36. The leading end of the A ! lever 35 is connected through a pin 37 to the/~4r~-34. A claw 38 ¦is fitted to the lever 35.
In ~igure 11, reference numeral 39 denotes an implement ~comprising a bucket. The implement 39 has a pair of C-shaped jlhooks 40 fixedly secured to the rear surface thereof.
Il , . .
, .
.
.
~ ~071151 1 !
The implement 39 is fitted to the lift arms 11 by allow- I
ing the beam 13 of the upper coupler 12 to engage with upper portions 40a of the hooks 40 and the beam 2 of the lower coupler 1 to engage with the lower portions 40b of the hooks 40. In this case, the lock pin 26 of the lock means 22 is inserted into stop- I
per grooves 41 of the circular cam parts 5 of the inner plates 3. ¦
The operation of the apparatus of the present invention ¦ will now be described below.
I! The lock pin 26 is lifted by the operator against the ¦I biasing force of the spring 31 by pulling up a tool 42 engaged by Il him with the pin 29 of the lock pin 26 so that the notch 28 of ¦I the lock pin 26 can be engaged with the claw 38 of the lever 35 thereby disengaging the lock pin 26 from the stopper groove 41.
(Refer to Figure 12-I) Then, the implement 39 is tilted back to allow the stopper face 43 of the upper coupler 12 to abut against the stopper 44 of the lift arms 11. Subsequently, the implement is dumped to allow 'stopper face 45 of the lower coupler 1 to abut against a connect- ¦
¦ling rod 46 of the lift arms 11. (refer to Figure 12-II) l Thereafter, when the lift arms 11 are lifted and the im-plement 39 is dumped continuously further, the upper portions 40a ~¦of hooks 40 of implement 39 are engaged with the beam 13 of the upper coupler 12, whilst the beam 2 will move along the guide ,¦until the lower coupler 1 is allowed to abut against the implement 39- If the implement 39 is dumped continuously further, point l"B" on the upper coupler 12 will move to point "B"'; point "C" on !jthe implement 39 ~ill move to point "C"'; and point "D" will move I~to point "D"' so that the upper and lower couplers 12 and 1 are ¦'kept at an angle of about seventy degrees by the connecting plates 1~6 and 15. (Refer to Figure 12-III) At that time the rod 32 of the I~ l ~' .. .
' 107~L151 lock means 22 is allowed to abut against the circular cam portionsl 5 of the inner plates 3 thereby actuating the lever 35 so that the¦
claw 38 can be disengaged from the notch 28 of the lock pin 26.
As a result, the lock pin 26 is urged by the resilient force of 1.' the spring 31 against the abovementioned circular cam portions 5. ¦
!l If the implement 39 is dumped further, the point "B" will move towards point "B"".
I In the next place, the implement 39 is dumped further ¦ while it is placed on the ground and the vehicle is moved back-! wards. (Refer to Figure 12-IV) Next, dumping of the implement is stopped when the beam 13 1 has been disengaged from the hooks 40, and the vehicle is moved ! back further so as to detach the implement 39. (Refer to Figure !i 12-V) The implement 39 can be mounted on the vehicle by effect-ing the abovementioned sequence reversely.
In the above-mentioned embodiment of the present invention !l unlocking of the lock means 22 is made manually; however another ¦l embodiment of the invention which will be mentioned below is of a Itype wherein the arrangement is made such that the lock means can be unlocked by the operator in the driver's cab effecting its remote controls.
The aforementioned lift arms 11 have unlocking means~50 fixedly secured on the upper surfaces thereof. The unlocking ¦means 50 comprises a spring loaded cylinder 51 fixedly mounted on the lift arm 11. Slidably mounted in the spring loaded cylinder i51 is a piston 52. The piston 52 has a rod 53 connected to a mem-¦ber 54 having an inclined face 55 formed thereon. Each of the ¦,lift arms 11 has a stopper 56 fixedly secured thereto. Accommo-i~dated within the spring loaded cylinder 51 is a spring 57 which 1 !
.
urges the piston 52 thereby allowing the member 54 to urge againstl the stopper 56. The piston 52 is connected to a cable 58 which extends to the driver's cab so as to be connected to a control lever (refer to Figure 13).
Thus, if the control lever is operated to pull the cable I' 58 to the right hand, the piston 52 is moved against the biasing ! force of the spring 57, the member 54 is moved through the rod 53 and the unlocking pin 29 is pushed upwardly by the inclined face ! 55 of the member 54, the lock pin 26 can be disengaged from the ¦ grooves 41, and the notch 28 of the lock pin 26 can be engaged ¦ with the claw 38 of the lever 35. In this condition, the upper I~ and lower couplers 12 and 1 becomes capable of swinging freely relative to each other.
. It is to be understood that the foregoing description is merely illustrative of the preferred embodiments of the present II invention and that the scope of the present invention is not to ¦' be limited thereto, but is to be determined by the scope of the appended claims.
!
.
.
;~ i 07~151 Il with, Further, each of the inner and outer plates 14 and 16 has j'l pin holes 17, 17' and 18, 18' formed in the upper and lower parts i ¦i thereof, respectively. (refer to Figure 6).
The upper part of the lower coupler 1 is inserted into i the lower part of the upper coupler 12. The upper and lower ¦, couplers 12 and 1 are interconnected by means of pins 19 each be-C 1l ing inserted into the pin holes 18, 18', ~ d~d 9~ . The stopper 8 ¦! is adapted to contact with the connecting plate 15 when the upper ¦ coupler 12 is aligned with the lower coupler 1.
¦ Connected to the upper coupler 12 having pins 20 inserted into the pin holes 17 and 17' are tilt rods 21 of the vehicle.
Referring to Figure 8, the inner plate 14 of the upper coupler 12 have a lock means 22 fixedly secured thereto. The lock i means 22 comprises a block 23 fixedly secured to the inner plate 14. The block 23 has vertically extending holes 24 and 25 formed therein. Inserted into the hole 24 is a lock pin 26 having a spring seat iK~ formed thereon. The lock pin 26 has a notch 28 ¦ formed in the upper end thereof, and also has a pin 29 attached ! to the lower part thereof. The block 23 has a spring retainer ¦plate 30 fixedly secured thereto, and a spring 31 is interposed ¦between the spring retainer plate 30 and the spring seat 27. In-serted into the hole 25 is a rod 32 urged downwardly by the bias-ing force of a spring 33. A ~g~k 34 is attached to the upper end of the rod 32. The block 23 has in the upper part thereof a lever ¦35 pivotally mounted by means of a pin 36. The leading end of the A ! lever 35 is connected through a pin 37 to the/~4r~-34. A claw 38 ¦is fitted to the lever 35.
In ~igure 11, reference numeral 39 denotes an implement ~comprising a bucket. The implement 39 has a pair of C-shaped jlhooks 40 fixedly secured to the rear surface thereof.
Il , . .
, .
.
.
~ ~071151 1 !
The implement 39 is fitted to the lift arms 11 by allow- I
ing the beam 13 of the upper coupler 12 to engage with upper portions 40a of the hooks 40 and the beam 2 of the lower coupler 1 to engage with the lower portions 40b of the hooks 40. In this case, the lock pin 26 of the lock means 22 is inserted into stop- I
per grooves 41 of the circular cam parts 5 of the inner plates 3. ¦
The operation of the apparatus of the present invention ¦ will now be described below.
I! The lock pin 26 is lifted by the operator against the ¦I biasing force of the spring 31 by pulling up a tool 42 engaged by Il him with the pin 29 of the lock pin 26 so that the notch 28 of ¦I the lock pin 26 can be engaged with the claw 38 of the lever 35 thereby disengaging the lock pin 26 from the stopper groove 41.
(Refer to Figure 12-I) Then, the implement 39 is tilted back to allow the stopper face 43 of the upper coupler 12 to abut against the stopper 44 of the lift arms 11. Subsequently, the implement is dumped to allow 'stopper face 45 of the lower coupler 1 to abut against a connect- ¦
¦ling rod 46 of the lift arms 11. (refer to Figure 12-II) l Thereafter, when the lift arms 11 are lifted and the im-plement 39 is dumped continuously further, the upper portions 40a ~¦of hooks 40 of implement 39 are engaged with the beam 13 of the upper coupler 12, whilst the beam 2 will move along the guide ,¦until the lower coupler 1 is allowed to abut against the implement 39- If the implement 39 is dumped continuously further, point l"B" on the upper coupler 12 will move to point "B"'; point "C" on !jthe implement 39 ~ill move to point "C"'; and point "D" will move I~to point "D"' so that the upper and lower couplers 12 and 1 are ¦'kept at an angle of about seventy degrees by the connecting plates 1~6 and 15. (Refer to Figure 12-III) At that time the rod 32 of the I~ l ~' .. .
' 107~L151 lock means 22 is allowed to abut against the circular cam portionsl 5 of the inner plates 3 thereby actuating the lever 35 so that the¦
claw 38 can be disengaged from the notch 28 of the lock pin 26.
As a result, the lock pin 26 is urged by the resilient force of 1.' the spring 31 against the abovementioned circular cam portions 5. ¦
!l If the implement 39 is dumped further, the point "B" will move towards point "B"".
I In the next place, the implement 39 is dumped further ¦ while it is placed on the ground and the vehicle is moved back-! wards. (Refer to Figure 12-IV) Next, dumping of the implement is stopped when the beam 13 1 has been disengaged from the hooks 40, and the vehicle is moved ! back further so as to detach the implement 39. (Refer to Figure !i 12-V) The implement 39 can be mounted on the vehicle by effect-ing the abovementioned sequence reversely.
In the above-mentioned embodiment of the present invention !l unlocking of the lock means 22 is made manually; however another ¦l embodiment of the invention which will be mentioned below is of a Itype wherein the arrangement is made such that the lock means can be unlocked by the operator in the driver's cab effecting its remote controls.
The aforementioned lift arms 11 have unlocking means~50 fixedly secured on the upper surfaces thereof. The unlocking ¦means 50 comprises a spring loaded cylinder 51 fixedly mounted on the lift arm 11. Slidably mounted in the spring loaded cylinder i51 is a piston 52. The piston 52 has a rod 53 connected to a mem-¦ber 54 having an inclined face 55 formed thereon. Each of the ¦,lift arms 11 has a stopper 56 fixedly secured thereto. Accommo-i~dated within the spring loaded cylinder 51 is a spring 57 which 1 !
.
urges the piston 52 thereby allowing the member 54 to urge againstl the stopper 56. The piston 52 is connected to a cable 58 which extends to the driver's cab so as to be connected to a control lever (refer to Figure 13).
Thus, if the control lever is operated to pull the cable I' 58 to the right hand, the piston 52 is moved against the biasing ! force of the spring 57, the member 54 is moved through the rod 53 and the unlocking pin 29 is pushed upwardly by the inclined face ! 55 of the member 54, the lock pin 26 can be disengaged from the ¦ grooves 41, and the notch 28 of the lock pin 26 can be engaged ¦ with the claw 38 of the lever 35. In this condition, the upper I~ and lower couplers 12 and 1 becomes capable of swinging freely relative to each other.
. It is to be understood that the foregoing description is merely illustrative of the preferred embodiments of the present II invention and that the scope of the present invention is not to ¦' be limited thereto, but is to be determined by the scope of the appended claims.
!
Claims (8)
PROPERTY OR PRIVILEGE IS CLAIMED ARE DEFINED AS FOLLOWS:
1. An apparatus for attaching an implement to an earth moving vehicle, said implement having a C-shaped hook formed on a rear surface thereof, the apparatus comprising:
a pair of lift arms for lifting the implement;
a pair of tilt rods for effecting tilting motion of the implement;
a pair of lower couplers pivotally connected to said lift arms at one end thereof;
a pair of upper couplers pivotally connected to said tilt rods, said lower and upper couplers being pivotally connected with each other;
an upper connecting beam provided between said pair of upper couplers for connecting the same;
a lower connecting beam provided between said pair of lower couplers for connecting the same, said upper and lower connecting beams being adapted to engage with the C-shaped hook formed on the rear surface of the implement; and lock means for locking said lower couplers relative to said upper couplers thereby preventing pivotal movement with each other.
a pair of lift arms for lifting the implement;
a pair of tilt rods for effecting tilting motion of the implement;
a pair of lower couplers pivotally connected to said lift arms at one end thereof;
a pair of upper couplers pivotally connected to said tilt rods, said lower and upper couplers being pivotally connected with each other;
an upper connecting beam provided between said pair of upper couplers for connecting the same;
a lower connecting beam provided between said pair of lower couplers for connecting the same, said upper and lower connecting beams being adapted to engage with the C-shaped hook formed on the rear surface of the implement; and lock means for locking said lower couplers relative to said upper couplers thereby preventing pivotal movement with each other.
2. The apparatus as defined in claim 1 wherein said lock means comprises a block having a hole formed therein, said block being fixedly secured to said upper couplers, a lock pin slidably inserted in the hole of said block, and spring means disposed in the hole so as to urge said lock pin towards said lower couplers thereby engaging said lock pin with a hole formed at the upper portion of said lower couplers.
3. The apparatus as defined in claim 1 wherein said lock means comprises a block having a hole formed therein, said block being fixedly secured to said lower couplers, a lock pin slidably inserted in the hole of said block, and spring means disposed in the hole so as to urge said lock pin towards said upper couplers thereby engaging said lock pin with a hole formed at the lower portion of said upper couplers.
4. The apparatus as defined in claim 1 further comprising lock releasing means provided on said lift arms for releasing said lock means thereby allowing said couplers to pivot with each other.
5. The apparatus as defined in claim 4 wherein said lock releasing means comprises a cylinder fixedly secured to said lift arms, a piston rod having a member fixedly secured to said piston rod at one end thereof, and spring means disposed within said cylinder urging said piston rod to be extended, and a connecting cable for connecting said cylinder to a control lever provided in a driver's cab of the vehicle.
6. An apparatus for attaching an implement to an earth moving vehicle, said implement having a C-shaped hook formed on a rear surface thereof, the apparatus comprising:
a pair of lift arms for lifting the implement;
a pair of tilt rods for effecting tilting motion of the implement;
a pair of lower couplers pivotally connected to said lift arms at one end thereof;
a pair of upper couplers pivotally connected to said tilt rods, said lower and upper couplers being pivotally connected with each other;
an upper connecting beam provided between said pair of upper couplers for connecting the same;
a lower connecting beam provided between said pair of lower couplers for connecting the same, said upper and lower connecting beams being adapted to engage with the C-shaped hook formed on the rear surface of the implement; and lock means for mechanically locking said lower couplers relative to said upper couplers thereby preventing pivotal move-ment with each other when said upper and lower couplers are accommodated in said C-shaped hooks while allowing to remain in an unlocked position during the pivotal movement of said lower couplers relative to said upper couplers.
a pair of lift arms for lifting the implement;
a pair of tilt rods for effecting tilting motion of the implement;
a pair of lower couplers pivotally connected to said lift arms at one end thereof;
a pair of upper couplers pivotally connected to said tilt rods, said lower and upper couplers being pivotally connected with each other;
an upper connecting beam provided between said pair of upper couplers for connecting the same;
a lower connecting beam provided between said pair of lower couplers for connecting the same, said upper and lower connecting beams being adapted to engage with the C-shaped hook formed on the rear surface of the implement; and lock means for mechanically locking said lower couplers relative to said upper couplers thereby preventing pivotal move-ment with each other when said upper and lower couplers are accommodated in said C-shaped hooks while allowing to remain in an unlocked position during the pivotal movement of said lower couplers relative to said upper couplers.
7. An apparatus for attaching an implement to an earth moving vehicle as claimed in claim 1, wherein said lock means is located on said upper and lower couplers, the locking action being between the upper and lower couplers independent of said implement.
8. An apparatus for attaching an implement to an earth moving vehicle as claimed in claim 1, wherein said locking means includes locking elements retractably extending parallel to the plane of said upper and lower couplers and perpendicular to said upper and lower connecting beams.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7907176A JPS535803A (en) | 1976-07-05 | 1976-07-05 | Quick coupler lock releasing device in device for attaching and detaching front attachment of construction machine |
| JP7907076A JPS535802A (en) | 1976-07-05 | 1976-07-05 | Device for attaching and detaching front attachment of constrution machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA1071151A true CA1071151A (en) | 1980-02-05 |
Family
ID=26420141
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA281,959A Expired CA1071151A (en) | 1976-07-05 | 1977-07-04 | Apparatus for attaching implement to earth moving vehicle |
Country Status (2)
| Country | Link |
|---|---|
| CA (1) | CA1071151A (en) |
| GB (1) | GB1582398A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5244306A (en) * | 1992-03-31 | 1993-09-14 | M-B-W Inc. | Vibratory compactor attachment for mechanical equipment |
| US5974706A (en) * | 1997-03-10 | 1999-11-02 | Clark Equipment Company | Attachment construction for earthworking implement |
| US5983535A (en) * | 1997-03-10 | 1999-11-16 | Clark Equipment Company | Fastener secured frame for boom mounted quick change bracket |
| US6000154A (en) * | 1997-03-10 | 1999-12-14 | Clark Equipment Company | Quick change attachment for powered auxiliary tool |
| US6163989A (en) * | 1997-03-10 | 2000-12-26 | Clark Equipment Company | Frame for mounting on a boom mounted quick change bracket |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB8500911D0 (en) * | 1985-01-15 | 1985-02-20 | Mason S T | Quick-change fitting |
| GB8613876D0 (en) * | 1986-06-07 | 1986-07-09 | J I Case Europ Ltd | Material-handling vehicle |
| GB8914927D0 (en) * | 1989-06-29 | 1989-08-23 | Steelfab Ltd | Implement attachment coupler |
-
1977
- 1977-07-04 GB GB2782177A patent/GB1582398A/en not_active Expired
- 1977-07-04 CA CA281,959A patent/CA1071151A/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5244306A (en) * | 1992-03-31 | 1993-09-14 | M-B-W Inc. | Vibratory compactor attachment for mechanical equipment |
| US5974706A (en) * | 1997-03-10 | 1999-11-02 | Clark Equipment Company | Attachment construction for earthworking implement |
| US5983535A (en) * | 1997-03-10 | 1999-11-16 | Clark Equipment Company | Fastener secured frame for boom mounted quick change bracket |
| US6000154A (en) * | 1997-03-10 | 1999-12-14 | Clark Equipment Company | Quick change attachment for powered auxiliary tool |
| US6154989A (en) * | 1997-03-10 | 2000-12-05 | Clark Equipment Company | Attachment construction for earthworking implement |
| US6163989A (en) * | 1997-03-10 | 2000-12-26 | Clark Equipment Company | Frame for mounting on a boom mounted quick change bracket |
Also Published As
| Publication number | Publication date |
|---|---|
| GB1582398A (en) | 1981-01-07 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1076997A (en) | Quick attach means for end loaders or the like | |
| CA2539045C (en) | An excavator tool quick attachment device | |
| US4030624A (en) | Loader vehicles | |
| US4355945A (en) | Tool mounting apparatus | |
| US5685689A (en) | Quick attach system for front end loader | |
| US5350250A (en) | Quick coupling of a front work attachment on excavators | |
| EP0447119B1 (en) | Earth-working machine | |
| US20030154636A1 (en) | Universal coupler for excavator buckets | |
| US4068959A (en) | Coupler apparatus | |
| US8500386B2 (en) | Latching system for automatically securing front-mounted loader mast to tractor mounting frame | |
| IE981051A1 (en) | Attachement device for excavating or digging apparatus | |
| US10352020B2 (en) | Safety coupling mechanism | |
| CA1071151A (en) | Apparatus for attaching implement to earth moving vehicle | |
| US20070201973A1 (en) | Quick coupler system | |
| US6619906B2 (en) | Power latch adapter for quick change attachment coupler | |
| US4251181A (en) | Implement coupling apparatus for boom-type vehicle | |
| US4549744A (en) | Quick coupler latch | |
| US5836734A (en) | Latching device with detent | |
| US20200002913A1 (en) | Quick-change coupler device | |
| US5642785A (en) | Implement coupling for excavators or loaders | |
| US7524158B2 (en) | Adapter for mounting skid-steer loader attachments onto an excavator arm | |
| US4225282A (en) | Backhoe boom transport locking means | |
| US4204794A (en) | Apparatus for attaching implement to earth moving vehicle | |
| US5004398A (en) | Backhoe mounting device for a skid steer loader | |
| US4227852A (en) | Releasable backhoe boom lock |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| MKEX | Expiry |