JPS5851255Y2 - Attachment detachment device for civil engineering construction machinery - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a device for attaching and detaching a packet fork or the like used as an accessory to a civil engineering construction machine, particularly a bulldozer, a chapel dozer, a loader, or the like.

Conventionally, when attaching or removing a packet fork, etc. to the main body of a loader or chappelle dozer, align the hole made in the arm of the main body with the hole made in the bracket welded to the packet fork, etc., and insert a bolt into the hole. They were fixed by inserting and screwing together or by inserting pins, but this method took a particularly long time to attach and detach, and it was difficult to position the holes in the main body arm and the holes in the bracket of the packet.

The present invention has been made in view of the above points, and an object of the present invention is to provide a device that allows a packet fork or the like to be easily attached to and detached from the main body.

Hereinafter, examples will be described in detail based on the drawings.

In the present invention, the cylindrical members 2 and 3 are fixed by the supports 4 and 5 and the reinforcing plates 6 and 7 to form a rectangular frame, and the members 23 and 24 are fixed to the supports 4 and 5. Side plates 21 and 22 are provided for each, and a shaft 5 is installed between the column 4 and the side plate 21.
0.51 is removably fitted between the support column 5 and the side plate 22.

On the other hand, a bracket 25, 26 is fixed to the lower part of the member 2, and a bearing 8 supports the shaft 12 on which the sprocket 15 is fitted.
9 is provided, and an L-shaped handle 13 is provided at one end of the shaft 12.

At the top of the member 3 are a bracket) 27.28 and a reinforcing plate 6,
A cylindrical bearing 10.11 is provided with a long groove 30 in the lower part fixed by the cylindrical bearing 10.
The sliding shaft 17 has a pin 29 a that protrudes further to prevent rotation, and the sliding shaft 1 has a pin 29 b that protrudes from the long groove 30 and prevents rotation inside the cylindrical bearing 11.
Fit 8 loosely.

On the other hand, a left-hand female screw is carved through the axis of the sliding shaft 17,
A right-hand female thread is carved through the axis of the sliding shaft 18, and a shaft 31 with a left-hand female thread and a right-hand male thread carved on both ends for screwing into each sliding shaft is attached to each sliding shaft. A sprocket 14 is fixed to the shaft 31, and a chain 16 is stretched between the sprocket 14 and the sprocket 15.

Rotation of the bundle 13 causes the shaft 31 to rotate and the left-hand thread to the right to rotate, so that the sliding shaft 17.18 slides axially in the same cylindrical bearing 10.11.

The above is the configuration of the present invention, and the operation, effects, etc. will be explained below.

When attaching a packet, etc. to a loader or chappelle dozer, attach the fitting 40.41 to the back of the packet, etc. as shown in Figure 2.
Attach.

In addition, the device of the present invention is attached to the arm of the main body of a loader, chapel dozer, etc.

For installation, an arm that supports the load of the device is attached to pins 51 and 53, and an operating arm is attached to pins 50 and 52.

This device attached to the main body arm is normally used as an attachment/detachment device when packets and the like are exchanged while the device is attached.

To equip the main body with a packet, etc., first operate the bundle 13 and bring the sliding shafts 17 and 18 closer to the sprocket 14 side. The half-bent portions 46 and 47 are fitted into the cylindrical member 3.

At this time, install the bracket 42°43 of the tool 40.41.
are positioned corresponding to portions a and b where the sliding shafts 17 and 18 appear and retract, so when the bundle 13 is rotated and the shaft 31 is rotated, the sliding shafts 17 and 18 move into the cylindrical bearings 10 and 11. protruding from the outer edge, bracket) 42.43 hole 48.
49 and further into the holes 19.20 of the posts 4, 5, respectively, thus securing the fittings 40.41.

When removing a packet or the like, it can be easily removed by rotating the bundle 13 in the opposite direction and pulling out the sliding shaft 17.18 from the hole 42.43.

As described above, the present invention has a structure in which the support arm and sliding arm (cylinder) can be attached and detached while connected to the frame, and the center of the joint automatically aligns just by suspending the attachment on the frame. Since it is possible to attach and detach it with one person's work tool, and since there are only two joints connected to the rotating shaft, the working time can be reduced.

Furthermore, since the structure is such that rotational force is applied through a chain in the middle of the shaft, there is an advantage that it can be operated with a relatively small force.

[Brief explanation of the drawing]

Fig. 1 is a perspective explanatory view of the present invention, Fig. 2 shows the installation odor that is welded to the back of the packet, etc., Fig. 3 is a partially sectional perspective view of the main part, and Fig. 4 is a perspective view of the present invention. FIG. 3 is a sectional view taken along line A-A in FIG. 3; 1... Device of the present invention, 2, 3... Cylindrical member, 10° 11... Cylindrical bearing, 13...
...Bundle, 14.15...Sprocket, 16...Chain, 17.18...
・Sliding shaft, 29a, 29b...Pin, 31...
...Shaft, 30...Long groove, 42゜43...
...Bracket), 44.45...Curved part, 4
6.47...Half-curved part, 48.49...
Hole, 50, 51, 52, 53... Pin, 40° 41... Mounting tool.

Claims (1)

[Scope of utility model registration request] The attachment is attached to the upper cylindrical member of tool 40.41,
The upper cylindrical member 2 for suspending 45 and the mounting tool 4
The lower cylindrical member 3 into which the lower half-bent portions 46 and 47 of 0.41 mm are connected are connected by struts 4 and 5 to form a rectangular frame,
A pair of pins 5 connect the support arm and the swing operation arm of the civil engineering construction machine to the upper and lower lateral sides of the frame, respectively.
1.53 and 50.52, and a pair of cylindrical bearings 10.11 with a long groove 30 bored in the axial direction, are attached to the frame 16 facing the coupling bracket fitting parts a, l) of the attachment. The sliding shaft 17 has a left-hand female thread carved into the shaft center and a pin 29a protruding from the outer periphery, and a sliding shaft 17 which also has a right-hand female thread carved into the shaft center and has a pin 29a protruded from the outer periphery.
The sliding shaft 18 with protruding portion b is connected to the pin 29 a of each group,
29 b is slidably fitted into the cylindrical bearing 10° 11 so as to engage with the long groove 30, the intermediate sprocket 14 is further fixed, and the sliding shafts 17, 18 are mounted on both the left and right sides.
Shaft 3 with a left male thread and a right male thread carved into it to be screwed together with the female thread of
1 into the sliding shafts 17 and 18, and the sprocket 1
4 and a sprocket 15 of a handle rotation shaft 12 disposed opposite thereto, a chain 16 is stretched between the chain 16.