JPH0735559U - Outrigger device for crawler type vehicle - Google Patents

Abstract

(57) [Summary] [Purpose] It is difficult to equip a crawler-type vehicle with a practical outrigger device that has a simple structure and can be manufactured at low cost, because the crawlers are wound around the left and right crawler frames of the traveling body. Met. The present invention provides an outrigger device for a crawler-type work vehicle that can solve the above problems. According to the outrigger device of the present invention, an arm is rotatably supported in the front and rear of the outer surface of the crawler frame of the traveling body so as to be horizontally rotatable, and an outrigger is provided at the tip of the arm. Also, attach a beam to the front of the revolving structure,
An outrigger was provided at the tip of the beam. A beam box that can move outward is provided on the outer surface of the crawler frame, and a beam having an outrigger is inserted into the beam box. Outriggers are pivotally attached to the front and rear portions of the outer surface of the crawler frame so as to be rotatable in the left and right vertical directions.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an outrigger device for a crawler type vehicle among construction machines such as hydraulic excavators and work vehicles.

[0002]

[Prior art]

 FIG. 10 is a diagram showing an outrigger device of a wheel type working machine described in Japanese Patent Publication No. 63-64339. In FIG. 10, a beam box 2 in the left-right direction is provided in the airframe 1, left and right beams 3 that can move outward are provided in the beam box 2, and an outrigger 4 is attached to the tip of each beam 3. . In FIG. 10, 5 is a jack cylinder of the outrigger 4, and 6 is a float plate.

[0003]

[Problems to be solved by the device]

 Conventionally, wheel-type work vehicles have been equipped with various outrigger devices. However, since the crawler type work vehicle has crawlers wound around the left and right crawler frames of the traveling body, it is difficult to equip a practical outrigger device that has a simple structure and can be manufactured at low cost. An object of the present invention is to provide an outrigger device for a crawler work vehicle that can solve the above problems.

[0004]

[Means for Solving the Problems]

 In the outrigger device of the present invention, as a first embodiment, in order to increase the stability of the machine body during work, the outrigger device is configured so that the outriggers are extended to the left and right or front and rear of the machine body. The crawler frame has a front and a rear portion on the outer side surface thereof, and an arm is rotatably pivoted in the horizontal direction, and an outrigger is provided at the tip of each arm. Also, when the outrigger is not used, the arm is stored inside the crawler. Further, in the outrigger device of the second embodiment, the beam is attached to the front part of the revolving structure provided above the crawler type traveling structure, and the outrigger is provided at the tip part of the beam. Further, the distance between the outrigger and the swing center of the revolving structure on the horizontal projection plane is calculated from the distance between the front and rear end corners of the left and right outer end faces of the crawler and the swing center of the revolving structure on the horizontal projection plane. I set it long. In the third embodiment outrigger device, a beam box that can move outward is provided on the outer surface side of the pair of left and right crawler frames of the crawler-type traveling body, and the beam box can slide in the front-rear direction inside the beam box. A front beam and a rear beam were installed, and outriggers were attached to the front and rear beams, respectively. When the outrigger is not used, the beam box is stored inside the crawler. Further, in the outrigger device of the fourth embodiment, the outriggers are pivotally attached to the front and rear portions of the outer surface portions of the pair of left and right crawler frames of the crawler type traveling body so as to be rotatable in the left and right vertical directions. Also, when the outrigger is not used, the outrigger is stored inside the crawler.

[0005]

[Action]

 In the outrigger device of the first embodiment, when the outriggers are installed, the overhang width of the outriggers is changed by setting the front arm and the rear arm attached to the outer surface of the crawl frame in a crossed state or a non-crossed state in a plan view. It can be made smaller or larger in the left-right direction. Therefore, when the crawler work vehicle performs work, the extension width of the outriggers can be adjusted in the front-rear direction and the left-right direction according to the size of the work site and the load condition. Also, when the outrigger is not used, the arm is stored inside the crawler, so that the outrigger stays within the width of the traveling body and does not hinder traveling.

Further, in the outrigger device of the second embodiment, the outrigger provided at the front part of the revolving structure serves as the fall fulcrum. Therefore, the stability moment of the crawler type vehicle can be increased. Further, even if the revolving structure is revolved, the outrigger does not interfere with the crawler, so there is no obstacle to the revolving structure during operation.

In the third embodiment outrigger device, the lateral stability of the traveling body can be increased by extending the beam box left and right. By extending the beams in the beam box in the front-back direction, the stability of the running body in the front-back direction can be increased. Further, since the beam box is stored inside the crawler when the outrigger is not used, the outrigger can be accommodated within the vehicle width of the traveling body and does not hinder traveling.

Further, in the outrigger device according to the fourth embodiment, the outrigger device is provided so as to be rotatable in the left and right vertical directions, so that the outrigger device can be manufactured compactly. In addition, the outrigger is stored inside the crawler when the outrigger is not used, so the outrigger is kept within the width of the traveling body and does not hinder traveling.

[0009]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is a perspective view of a main part of a traveling body 7 including an outrigger device according to a first embodiment of the present invention. In the figure, 8 is a car body of the traveling body 7, 9 is a crawler frame, 10 is a crawler, 11 and 12 are brackets fixed to the outer surface of the crawler frame 9, 13 and 14 are front and rear arms, and 15 respectively. , 16 are outriggers attached to the front end portions of the front arm 13 and the rear arm 14, respectively, and 17 and 18 pivotally support the base end portions of the front arm 13 and the rear arm 14 to the brackets 11 and 12, respectively. It is a pin. 1 shows the outrigger device on the right side of the traveling body 7, the outrigger device on the left side (not shown in FIG. 1) is provided symmetrically with the outrigger device. 2 and 3 are plan views showing a usage state of the outrigger device in FIG. Next, the structure of the first embodiment outrigger device of the present invention will be described with reference to FIGS. In the present invention, the front arm 13 is provided at the front of the outer side surface of the pair of left and right crawler frames 9 of the traveling body 7, and the rear arm is provided at the lower lower position of the front arm 13 at the rear of the outer side surface. Each of the arms 14 is rotatably supported in the horizontal direction, and outriggers 15 and 16 are provided at the front ends of the front arm 13 and the rear arm 14, respectively. Although not shown, the turning operation means of the front arm 13 and the rear arm 14 and the pulling operation means of the outriggers 15 and 16 are operated by manual operation or hydraulic cylinder operation.

Next, the operation of the first embodiment outrigger device of the present invention will be described. According to the present invention, when the front arm 13 and the rear arm 14 attached to the outer side surface of the crawler frame 9 are made to cross each other in a plan view, as shown in FIG. 2, the outer end surface of the crawler 10 is extended to the outriggers 15 and 16. The width can be made smaller than the dimensions L1 and L'1. In this case, the installation positions of the outriggers 15 and 16 in the front-rear direction are not on the front side or the rear side of the front end and the rear end of the crawler 10. Therefore, the outrigger device can be used in a narrow space such as an urban area. Next, when the front arm 13 and the rear arm 14 are brought into a non-intersecting state in a plan view, as shown in FIG. 3, the extension width from the outer end surface of the crawler 10 to the outriggers 15 and 16 is increased to the maximum dimensions L2 and L'2. can do. Further, in this case, the installation position of the outriggers 15 and 16 in the front-rear direction can be set to the front side up to the maximum dimension L3 from the front end of the crawler 10, and can be set to the rear side up to the maximum dimension L'3 from the rear end of the crawler 10. You can Therefore, when the chlorler type work vehicle performs work, the overhanging width of the outriggers 15 and 16 can be largely adjusted in the front-rear and left-right directions according to the size of the periphery of the work site and the load condition. . Further, when the outriggers 15 and 16 are not used, the front arm 13 and the rear arm 14 are stored inside the crawler 10 as shown in FIG. It fits in (as shown in Fig. 2) and does not hinder driving.

Next, FIG. 4 is an overall side view of a claw crane 19 equipped with a second embodiment outrigger device of the present invention. In the figure, 20 is a traveling body of the crawler crane 19, 21 is a crawler wound around the traveling body 20, 22 is a revolving structure, 23 is a crane jib, 24 is a beam, and 25 is an outrigger. FIG. 5 is a plan view of an essential part of FIG. In the figure, the center O is the turning center of the revolving unit 22, and the radius R is the turning radius of the center of the outrigger 25 when the revolving unit 22 turns. Next, the configuration of the second embodiment outrigger device of the present invention will be described with reference to FIGS. In the present invention, the beam 24 is attached to the front part of the revolving structure 22 provided on the upper part of the traveling body 20, and the outrigger 25 is provided at the tip of the beam 24. Further, the distance between the outrigger 25 and the revolving center O (shown in FIG. 5) of the revolving structure 22 on the horizontal projection plane (the revolving radius is the dimension R and the outrigger 25 does not interfere with the crawler 21 at the time of revolving) is determined. The distance r (shown in FIG. 5) on the horizontal projection plane between the front and rear end corners of the left and right outer end surfaces of the crawler 21 and the turning center O of the turning body 22 is set longer. Although the pushing operation means of the outrigger 25 is not shown, it is operated by manual operation or hydraulic cylinder operation.

Next, the operation of the second embodiment outrigger device of the present invention will be described. In the present invention, the outrigger 25 provided at the front part of the revolving structure 22 serves as a tipping fulcrum of the crawler crane 19. Therefore, the stability moment of the crawler crane 19 can be increased. Further, even if the revolving unit 22 is revolved, the outrigger 25 does not interfere with the crawler 21, so that the revolving structure does not interfere with the revolving structure.

Next, FIG. 6 is a perspective view showing a main part of a third embodiment outrigger device of the present invention. In the figure, 26 is a traveling body, 27 is a crawler frame of the traveling body 26, 28 is a crawler, 29 is a beam box, and 31 and 31 are front and rear outriggers, respectively. FIG. 7 is a perspective view showing a usage state of the outrigger device in FIG. In the figure, 32 is a sliding support member fixed to the beam box 29 and supported by the crawler frame 27, and 33 and 34 are front and rear beams, respectively. Next, the construction of the third embodiment outrigger device of the present invention will be described with reference to FIGS. In the present invention, a beam box 29 that can move outward is provided on the outer surface side of the crawler frame 27 of the traveling body 26, and inside the beam box 29, a front beam 33 and a rear beam 33 that can slide in the front-rear direction. Beams 34 are provided, and outriggers 30 and 31 are attached to the front ends of the front beam 33 and the rear beam 34, respectively. Further, the beam box 29 is stored inside the crawler 28 when the outriggers 30 and 31 are not used. Although the moving means of the beam box 29, the sliding movement means of the front beam 30 and the rear beam 31, and the squeezing operation means of the outriggers 30 and 31 are not shown, they may be operated manually or by a hydraulic cylinder. It operates.

Next, the operation of the third embodiment outrigger device of the present invention will be described. In the present invention, the lateral stability of the traveling body 26 can be increased by extending the beam box 29 left and right. By extending the front beam 33 in the beam box 29 to the front and the rear beam 34 to the rear, the longitudinal stability of the traveling body 26 can be increased. Further, since the beam box 29 is stored inside the crawler 28 when the front outrigger 30 and the rear outrigger 31 are not used, the front outrigger 30 and the rear outrigger 31 are accommodated within the vehicle width of the traveling body 26. , There is no bearing on running.

Next, FIG. 8 is a perspective view showing a main part of an outrigger device according to a fourth embodiment of the present invention. In the figure, 35 is a traveling body, 36 is a crawler frame of the traveling body 35, 37 is a crawler, 38 and 39 are brackets fixedly attached to the front and rear portions of the outer surface of the crawler frame 36, and 40 and 41 are front portions, respectively. The rear outriggers 42 and 43 are pins for pivoting the base ends of the front outrigger 40 and the rear outrigger 41 to the brackets 38 and 39, respectively. FIG. 9 is a perspective view showing a usage state of the outrigger device in FIG. Next, the construction of the outrigger device according to the fourth embodiment of the present invention will be described with reference to FIGS. In the present invention, a front outrigger 40 and a rear outrigger 41 are pivotally attached to the front and rear of the outer surface of the crawler frame 36 of the traveling body 35 so as to be rotatable in the left and right vertical directions. Further, when the front outrigger 40 and the rear outrigger 41 are not used, both the outriggers 40 and 41 are stored inside the crawler 37. Although the rotating means of the front outrigger 40 and the rear outrigger 41 are not shown, they are operated by manual operation or hydraulic cylinder operation.

[0016]

[Effect of device]

 In the outrigger device according to the first embodiment of the outrigger device of the present invention, when the outrigger is installed, the front arm and the rear arm attached to the outer surface of the crawler frame are brought into a crossed state or a non-crossed state in a plan view to thereby outrigger. The overhang width can be reduced or increased in the front, rear, left and right directions. Therefore, when the crawler work vehicle performs work, the extension width of the outriggers can be adjusted in the front-rear direction and the left-right direction according to the size of the periphery of the work site and the load condition. Further, since the arm is stored inside the crawler when the outrigger is not used, the outrigger is stored within the vehicle width of the traveling body and does not hinder traveling. In addition, in the outrigger device of the second embodiment, the outrigger provided at the front part of the revolving structure serves as the fall fulcrum. Therefore, the stability moment of the crawler type vehicle can be increased. Further, even when the revolving structure is revolved, the outrigger does not interfere with the crawler, so that there is no hindrance to the revolving work. In the third embodiment outrigger device, the lateral stability of the traveling body can be increased by extending the beam box to the left and right. The stability of the traveling body in the front-rear direction can be increased by projecting the beams in the beam box in the front-rear direction. Further, since the beam box is stored inside the crawler when the outrigger is not used, the outrigger is stored within the vehicle width of the traveling body and does not hinder traveling. Further, in the outrigger device according to the fourth embodiment, the outrigger device is provided so as to be rotatable in the left and right vertical directions, so that the outrigger device can be manufactured compactly. In addition, the outrigger is stored inside the crawler when the outrigger is not used, so that the outrigger stays within the vehicle width of the vehicle and does not hinder driving. As described above, the outrigger device of the present invention exerts a sufficient effect to increase the stability of the crawler type vehicle, and since the outrigger is stored inside the crawler when the outrigger is not used, it is distorted in terms of maintenance. There is. Moreover, since the structure is simple, it is very practical as an outrigger device for a crawler type vehicle.

[Brief description of drawings]

FIG. 1 is a perspective view of a main part of a traveling body including an outrigger device according to a first embodiment of the present invention.

FIG. 2 is a plan view showing a usage state of the outrigger device in FIG.

FIG. 3 is a plan view showing a usage state of the outrigger device in FIG.

FIG. 4 is an overall side view of a crawler crane equipped with a second embodiment outrigger device of the present invention.

5 is a plan view of an essential part of FIG. 4. FIG.

FIG. 6 is a perspective view showing a main part of an outrigger device according to a third embodiment of the present invention.

FIG. 7 is a perspective view showing a usage state of the outrigger device in FIG.

FIG. 8 is a perspective view of an essential part showing an outrigger device according to a fourth embodiment of the present invention.

9 is a perspective view showing a usage state of the outrigger device in FIG. 8. FIG.

FIG. 10 is a diagram showing an outrigger device of a wheel type working machine.

[Explanation of symbols]

 2,29 Beam box 3,24 Beam 4,15,16,25 Outrigger 7,20,26,35 Traveling body 9,27,36 Crawler frame 10, 21, 28,37 Crawler 13 Front arm 14 Rear arm 19 Crawler Crane 22 Revolving structure 30,40 Front outrigger 31,41 Rear outrigger 32 Sliding support member 33 Front beam 34 Rear beam

Claims (8)

[Scope of utility model registration request] 1. In an outrigger device in which outriggers are extended to the left and right or front and back of the machine body in order to increase stability of the machine body during work, front parts of outer side portions of a pair of left and right crawler frames of a crawler type traveling body. An outrigger device for a crawler type vehicle, characterized in that an arm is rotatably pivoted in a horizontal direction in a rear part and a rear part, and an outrigger is provided at a tip part of each arm. 2. An outrigger device for a crawler type vehicle according to claim 1, wherein the arm is stored inside the crawler when the outrigger is not used. Outrigger device. 3. In an outrigger device in which outriggers are extended to the left and right or front and back of the machine body in order to increase stability of the machine body during work, a beam is provided at a front portion of a revolving structure provided above a crawler type traveling body. An outrigger device for a crawler-type vehicle, characterized in that an outrigger is attached to the tip of the beam. 4. The outrigger device for a crawler type vehicle according to claim 3, wherein the distance between the outrigger and the turning center of the revolving structure on the horizontal projection plane is the front end angle of the left and right outer end faces of the crawler. An outrigger device for a crawler type vehicle, characterized in that it is set to be longer than a distance on a horizontal projection plane between a corner portion and a rear end corner portion and a turning center of a turning body. 5. In an outrigger device in which outriggers are extended to the left and right or front and back of the machine body in order to increase stability of the machine body during work, the outer surface side of a pair of left and right crawler frames of a crawler type traveling body is provided. A beam box that can move outward is provided, and front and rear beams that can slide forward and backward are provided inside the beam box, and outriggers are attached to the front and rear ends of the beam. An outrigger device for a crawler type vehicle. 6. The crawler vehicle according to claim 5, wherein the beam box is stored inside the crawler when the outrigger is not used. Outrigger device. 7. An outrigger device in which outriggers are extended to the left and right or front and back of the machine body in order to increase stability of the machine body during work, and a front portion of outer side portions of a pair of left and right crawler frames of a crawler type traveling body. An outrigger device for a crawler type vehicle, characterized in that outriggers are pivotally attached to the left and right sides respectively so as to be rotatable in the left and right vertical directions. 8. The crawler-type vehicle outrigger device according to claim 7, wherein the outrigger is stored inside the crawler when the outrigger is not used. Outrigger device.