JPH0575051U - Carrier - Google Patents

Abstract

(57) [Summary] [Purpose] One hydraulic cylinder is used to change the inclination of the loading platform and the winding shape of the crawler. [Structure] The vehicle body frame 10 having the front grounding wheel 16, the center driven wheel 18, and the rear driving wheel 20 and having self-propelled equipment.
, A center driven wheel 18 and a front driven wheel 24, and a crawler frame 12 rotatable around a center driven wheel 18 in a vertical plane, a front driven wheel 24, a center driven wheel 18, and a rear drive wheel. The hydraulic cylinder 36 is provided between the crawler 28 wound around the crawler 20 and the crawler frame 12 and extends backward from the front grounding wheel 16, and the rear portion of the carrier frame is detachable from the vehicle body frame 10. A carrier comprising 14 and 14.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a carrier suitable for carrying long heavy objects.

[0002]

[Prior Art]

 A self-propelled carrier having a sloping carrier frame is known, and it is often used for loading long heavy objects on the carrier frame for individual delivery to each door. In the vehicles used for such purposes, the carrier frame is set up and down in order to load and unload the goods in a labor-saving manner, and the crawler is grounded so that stairs can be climbed. Usually, the winding shape can be changed so that the part becomes linear.

[0003]

[Problems to be solved by the device]

 By the way, since the conventional hydraulic cylinders and the like are used as drive sources for raising and lowering the carrier frame and changing the winding shape of the crawlers, the structure is complicated and the cost is high. In particular, since this type of transport vehicle needs to be small and lightweight, such a large number of drive sources is not preferable. The present invention solves such a problem and, in short, makes it possible with a single hydraulic cylinder.

[0004]

[Means for Solving the Problems]

 In order to solve the above problems, the present invention is provided with a front grounding wheel, a center driven wheel and a rear driving wheel, and a body frame having self-propelled equipment, a center driven wheel and a front driven wheel are provided. A crawler frame that can rotate in a vertical plane around the center driven wheel, crawlers that are wound around the front driven wheel, the center driven wheel, and the rear drive wheel, and a crawler frame that extends backward from the front grounding wheel. (EN) Provided is a transport vehicle characterized in that a hydraulic cylinder is interposed between the two, and a rear part is composed of a load carrier frame which can be engaged with and disengaged from a vehicle body frame.

[0005]

[Action]

 By taking the above means, when the luggage carrier frame is engaged with the vehicle body frame and the hydraulic cylinder is extended, the crawler frame relatively lowers and the ground portion of the crawler becomes linear. On the other hand, when the hydraulic cylinder is extended by releasing the engagement between the carrier frame and the vehicle body frame, the carrier frame is tilted up and down around the front grounding wheel.

[0006]

【Example】

 1 is a side view of a carrier according to the present invention, and FIG. 2 is a plan view thereof, the carrier according to the present invention includes a body frame 10, a crawler frame 12, and a carrier frame 14. The front ground wheel 16, the center driven wheel 18, and the rear drive wheel 20 are attached to the vehicle body frame 10 in a side view triangular shape in which the rear drive wheel 20 is lifted upward. An engine, a mission, etc. are mounted on the vehicle body frame 10 (not shown), and have a self-propelled function. Further, the rear end of the body frame 10 is formed with a steering wheel 22.

The crawler frame 12 is composed of a left and right pair of center driven wheels 18 and front driven wheels 24. The crawler frame 12 is rotatable in a vertical plane about an axle 26 that supports the center driven wheel 18. It is configured. Then, the crawler 28 is wound around the front driven wheel 24, the center driven wheel 18, and the rear drive wheel 20 described above. The luggage carrier frame 14 extends rearward upward from the front landing wheel 16, and a hook 30 is provided at a rear end thereof so that the hook 30 can be engaged with and disengaged from a bar portion 32 provided on the vehicle body frame 10. It is like this. The left and right crawler frames 12 are connected by a beam 34, and a hydraulic cylinder 36 is provided between the beam 34 and the carrier frame 14.

By the way, the body frame 10 is bent into a letter “F” in a side view, and this portion straddles the beam 34. As described above, when the hook 30 of the luggage carrier frame 14 is engaged with the vehicle body frame 10 to shorten the hydraulic cylinder 36, the beam 34 of the crawl frame 12 relatively rises until it hits the vehicle body frame 10, and these relationships are The front grounding wheel 16 and the front driven wheel 24 are both in the transporting posture shown in FIG.

FIG. 3 is a side view of the carrier when the grounding portion of the crawler 28 is made linear. To achieve such a state, the hook 30 of the carrier frame 14 is engaged with the vehicle body frame 10. It is sufficient to extend the hydraulic cylinder 36. That is, when the hydraulic cylinder 36 is extended in this state, the crawler frame 12 is relatively lowered, and the grounding portion of the crawler 28 becomes linear. If the crawler 28 has such a winding shape, it is possible to climb stairs and the like.

FIG. 4 is a side view of the carrier when the carrier frame 14 is raised. To achieve such a state, the hook 30 of the carrier frame 14 is removed from the vehicle body frame 10 and the hydraulic cylinder 36 is extended. You can do it. That is, when the hydraulic cylinder 36 is extended in this state, the platform frame 14 rises around the front grounding wheel 16 which is grounded. By the way, the raising / lowering posture of the luggage carrier frame 14 at this time changes between an inclined posture in which the cargo frame 14 is laid down on the body frame 10 and an upright posture in which it stands upright. It should be noted that when the platform frame 14 is upright, it is easy to load and unload the cargo 38 onto the platform frame 14.

[0011]

[Effect of the device]

 As described above, the present invention has a simple structure and a low cost because the loading frame can be raised and lowered and the crawler winding shape can be changed with one hydraulic cylinder. Since this operation can be performed only by engaging and disengaging the carrier frame with respect to the vehicle body frame, the operation is easy. Therefore, it is possible to safely load and unload the goods.

[Brief description of drawings]

FIG. 1 is a side view of a carrier according to the present invention.

FIG. 2 is a plan view of a carrier according to the present invention.

FIG. 3 is a side view of a carrier according to the present invention.

FIG. 4 is a side view of a carrier according to the present invention.

[Explanation of symbols]

 10 Body Frame 12 Crawler Frame 14 Carrier Frame 16 Front Grounding Wheel 18 Center Driven Wheel 20 Rear Drive Wheel 24 Front Driven Wheel 28 Crawler 36 Hydraulic Cylinder

Claims (1)

[Scope of utility model registration request] 1. A front body grounding wheel, a center driven wheel and a rear driving wheel are installed, and a body frame having self-propelled equipment, a center driven wheel and a front driven wheel are provided so as to extend vertically around the center driven wheel. A crawler frame that can rotate in the plane, crawlers that are wound around the front driven wheel, the center driven wheel, and the rear drive wheel, and a crawler frame that extends rearward upward from the front grounding wheel and has a crawler frame. A carrier vehicle, which is provided with a rear part of the carrier frame detachable from the vehicle body frame.