JPH061065U - Outriggers for turning tracked vehicles - Google Patents

Abstract

(57) [Summary] [Purpose] A work vehicle is designed to be able to work without tilting when transporting, installing or removing long steel materials such as H-section steel. A revolving tracked vehicle in which a revolving structure is provided on an upper part of a lower traveling structure, and a bending type working machine is provided on the upper part of the revolving structure so as to undulate in a front-back direction. 1 is provided with an outrigger-2 in the front-rear direction and a pair of first brackets 3 are provided on the track frame 1 at predetermined intervals, and the bottom side of the hydraulic cylinder 4 is rotatably supported on the upper part of the first bracket. One side of the lower part of 3 is the first link 5
The second bracket 6 connected to the rotation fulcrum of the second bracket 6 provided on the outrigger-2 via the
The upper end of the link 7, the upper end of the third link 8 whose lower end is the rotation fulcrum of the second bracket 6, and the end of the rod 4a of the hydraulic cylinder 4 are connected by the same pin 9. [Effect] By ensuring high link efficiency at the time of grounding and reducing the stroke amount, the hydraulic cylinder can be made compact and the vehicle width at the time of storing the outrigger can be made compact.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a swivel work vehicle equipped with a gripping device used for transportation, installation, and removal of long steel materials in a narrow construction site such as underground where there is not enough space in civil engineering and construction work. The present invention relates to an outrigger for a swing-type tracked vehicle for the purpose of stabilizing a vehicle body.

[0002]

[Prior art]

 Conventionally, when a crane car is used to transport, install, and remove long steel materials such as H-shaped steel in a small space such as underground construction, the space of the crane car is limited and the operation efficiency of the crane car is limited. Is significantly hindered and may cause harm to other workers. As a solution to such a problem, as shown in FIG. 4, there is a gripping device for a turning type tracked vehicle previously filed by the applicant. According to this, the turning type tracked vehicle 21 holds the H steel material 25 with the gripping device 24 provided at the tip of the working machine including the boom 22 and the arm 23 facing downward (solid line), The figure shows a state in which the gripping device 24 is rotated sideways to grip the H steel material 25 and is vertically lifted to a high position (two-dot chain line), but the solid line is used for the work of transporting and removing the H steel material 25. The state of the chain double-dashed line is always repeated. In the figure, 26 is a revolving structure, 27 is a lower traveling structure, 28 is a crawler track, and 29 is a track frame.

[0003]

[Problems to be solved by the device]

 Therefore, in the case of the swing-type tracked vehicle as shown in Fig. 4, the problems of the crane vehicle can be solved, but the swivel-type work vehicle itself may lean to the left and right due to handling heavy steel material. There was a risk of trouble.

In view of this, the present invention provides an outrigger for a swing-type tracked vehicle that enables a work vehicle to work without tilting when transporting, installing, or removing a long steel material such as an H-shaped steel. The purpose of the present invention is to eliminate the drawbacks of the prior art.

[0005]

[Means for Solving the Problems]

 As a means for solving the above-mentioned problems of the prior art, the present invention provides a revolving structure on the upper part of a lower traveling body, and a revolving-type working machine provided on the upper part of the revolving structure so as to undulate in the front-back direction. In a tracked vehicle, an outrigger is provided in the front-rear direction outside the track frame of the undercarriage, a pair of first brackets are provided on the track frame at predetermined intervals, and the bottom side of the hydraulic cylinder is provided at the upper part. The first bracket is rotatably supported, one side of the lower portion of the first bracket is connected to the rotation fulcrum of the second bracket provided on the outrigger through the first link, and the other side of the lower portion is the lower end. It is characterized in that the upper end of the third link, the upper end of the fourth link whose lower end is the rotation fulcrum of the second bracket, and the rod end of the hydraulic cylinder are connected by the same pin.

[0006]

[Action]

 According to the above configuration, when the swing-type tracked vehicle is working, the hydraulic cylinder is extended to ground the outrigger, so that the grounding area of the vehicle is increased and the vehicle body is stabilized, so that the load of the working machine is lifted. It is possible to prevent the occurrence of problems such as tilting the vehicle body with respect to the above. When retracted, the outrigger can be folded toward the vehicle body by contracting the hydraulic cylinder.

[0007]

【Example】

 1 is a perspective view showing an embodiment of an outrigger of a swing-type tracked vehicle according to the present invention, FIG. 2 is a rear view of the outrigger of FIG. 1 in a grounded state, and FIG. 3 is a rear view of the outrigger of FIG. 1 in a retracted state. Is.

Hereinafter, the present invention will be described with reference to an embodiment shown in FIGS. The present invention relates to a swing type track-equipped vehicle in which a revolving structure (not shown) is provided on the upper part of a lower traveling structure, and a bending type work machine is provided on the upper part of the revolving structure so as to undulate in the front-back direction. An outrigger-2 is provided outside the track frame 1 in the front-rear direction, a pair of first brackets 3 are provided on the track frame 1 at predetermined intervals, and the bottom side of the hydraulic cylinder 4 is rotatably supported on the upper part. Then, one side of the lower part of the first bracket 3 is connected to the rotation fulcrum of the second bracket 6 provided on the outrigger-2 via the first link 5, and the other side of the lower part is the lower end. The upper end of the link 7, the upper end of the third link 8 whose lower end is the pivot point of the second bracket 6, and the end of the rod 4a of the hydraulic cylinder 4 are connected by the same pin 9. .

In FIG. 1, the first brackets 3 are fixed to the outer surface of the track frame 1 (of the lower traveling body of the swing type tracked vehicle as shown in FIG. 4) at a right angle in a spaced manner from each other. A bottom side base portion of the hydraulic cylinder 4 is provided between the upper portions of the first brackets 3 and 3 so as to be swingable by a pin 10. An opposing outrigger-2 is provided on one side of the lower portion of the first bracket 3. The outrigger-2 is formed in a substantially flat plate shape having a desired length, and the pair of brackets 6 and 6 are fixed to a surface which is an upper side when grounded, at a constant interval from the center in the longitudinal direction. A first link 5 is provided between the brackets 3 and 6, one side of the first link 5 is formed by a pin 11 and one side of a lower portion of the first bracket 3, and the other side of the first link 5 is formed by a pin 11. The second bracket 6 and the pin 12 are rotatably connected to the respective pins. Further, the lower ends of the pair of second links 8 and 8 are connected to the pin 12 inside the first link 5 to which the bracket 6 is connected, so that they are inside the first bracket 3 and outside the second link 8. The other side of the lower part of the first bracket 3 and the lower end of the third link 7 are rotatably connected by a pin 13. The same pin 9 is connected to the upper end of the third link 7, the upper end of the second link 8, and the rod end of the hydraulic cylinder 4 so as to penetrate therethrough. 14 is a crawler track.

Next, the operation will be described. When the outrigger-2 is grounded, when the rod 4a of the hydraulic cylinder 4 is extended, the upper end of the second link 7 is pushed, and accordingly, the pin 13 as the center is changed from the two-dot chain line state to the solid line. Turn to. As a result, the first link 5 and the third link 8 that have been folded so as to overlap with the first link 5 also rotate so as not to overlap and come to the solid line position, so that the outrigger-2 is grounded as shown in FIG. It becomes a state. Next, when the outrigger-2 is stored, when the rod 4a of the hydraulic cylinder 4 is contracted, the upper end of the second link 7 is rotated in the ascending direction with the pin 13 at the lower end as a fulcrum, whereby the third link 8 is moved. Is folded so as to overlap the first link 5, and as shown in FIG. 3, it rotates from the state of the two-dot chain line to the direction of the solid line. Then, it is stored so that the ground contact surface is on the outside. However, since the loci of the pin 12 from the storage to the ground contact and from the ground to the storage are close to the track frame 1 as shown in FIGS. 2 and 3, the vehicle body travels at a construction site where the vehicle width is narrow. It does not hinder work and allows compact storage and grounding.

[0011]

[Effect of device]

 As described above, the present invention is directed to a swing-type tracked vehicle in which a swing structure is provided above a lower traveling structure, and a bending type work machine is provided above the swing structure so as to undulate in the front-rear direction. Outriggers are provided in the front-rear direction outside the track frame of the undercarriage, and a pair of first brackets are provided on the track frame at predetermined intervals to rotatably support the bottom side of the hydraulic cylinder on the upper part. Then, one side of the lower part of the first bracket is connected to the rotation fulcrum of the second bracket provided on the outrigger through the first link, and at the same time, the second link of the other side of the lower part serves as the lower end. Since the upper end, the upper end of the third link whose lower end is the pivot point of the second bracket, and the rod end of the hydraulic cylinder are connected by the same pin, a high link efficiency at grounding and a stroke are secured. By reducing the amount, the hydraulic system Sunda compactness with attained, the outrigger - can also be achieved compactness in the vehicle width at the time stored.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of an outrigger of a tracked vehicle according to the present invention.

FIG. 2 is a back side explanatory view showing a grounded state of the outrigger of FIG.

FIG. 3 is a back side explanatory view showing a stored state of the outrigger of FIG.

FIG. 4 is an explanatory diagram showing an example of a working state in the swivel work vehicle of the prior application.

[Explanation of symbols]

 1 Track Frame 2 Outrigger-3 1st Bracket 4 Hydraulic Cylinder 4a Rod 5 1st Link 6 2nd Bracket 7 2nd Link 8 3rd Link 9 Pin

Claims (1)

[Scope of utility model registration request] 1. A revolving tracked vehicle, wherein a revolving structure is provided on an upper part of a lower traveling structure, and a bending type working machine is provided on the upper part of the revolving structure so as to undulate in a front-back direction. Outriggers are provided in the front-rear direction on the outer side of the frame, and a pair of first brackets are provided on the track frame at predetermined intervals to rotatably support the bottom side of the hydraulic cylinder on the upper part of the first bracket. One side of the lower part of the second bracket is connected to the pivotal fulcrum of the second bracket provided on the outrigger through the first link, and the other end of the lower part serves as the lower end of the second link and the second bracket. An outrigger for a swing-type tracked vehicle, wherein an upper end of a third link whose lower end is a pivot point and a rod end of the hydraulic cylinder are connected by the same pin.