JPH0732637Y2 - Carrier - Google Patents

Description

[Detailed Description of the Invention] << Industrial field of application >> The present invention relates to a carrier device, and more specifically, it is used when a tubular object is carried, and the object is placed in a narrow space. The present invention relates to a transfer device used when transferring.

<Prior art> Conventionally, heavy or large-volume items are generally loaded on a trolley or a carrier to be transported to the intended location.Even in civil engineering work, steel pipes are loaded on the trolley or a carrier. Often transported.

<< Problems to be solved by the invention >> However, there are some narrow places where a trolley or the like cannot be used depending on a place where an object is conveyed.

For example, steel pipes are drawn into existing passages as reinforcement work for trails for headraces, but the gap between the inner surface of the passages and the steel pipes is very small, and the steel pipes are loaded on a truck and carried. That is impossible. Moreover, the steel pipe itself is quite large, heavy, and has a long transportation distance, which makes it very difficult to pull the steel pipe into the road.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a transport device that can easily transport a heavy tubular object to be transported over a long distance in a narrow space.

<Means for Solving the Problems> In order to achieve the above-mentioned object, a carrier device according to the present invention is configured so as to be swingably pivoted to a lower portion of a frame body which is detachably fitted to both ends of an opening of a tubular object. A pair of attached arms are provided, one end side of the arms is located outside the transported object and the other end side is located inside, a wheel is provided at the one end side, and a lifting means is provided at the other end side. Provided.

<< Operation >> When a frame is attached to a tubular object to be transported and one end of the arm located inside the transported object is lifted by the lifting means of the arm, the arm swings and is provided at the other end of the arm. Wheels located on the outside of the transported object bottom on the transportation surface such as the ground or a transportation rail. When the arm is further lifted, the wheels receive the load of the transported object, the transported object is separated from the transport surface, and the wheels can travel.

<< Embodiment >> A preferred embodiment of the present invention will be described with reference to the accompanying drawings.

FIG. 1 and FIG. 2 show a state in which a conveying device according to an embodiment of the present invention is applied to a steel pipe.

Reference numeral 1 in the figure is a cylindrical steel pipe of the object to be conveyed, and a pair of conveying devices is detachably attached to the inner circumference of both ends of the opening of the steel pipe 1.

The carrying device in this embodiment is based on an annular frame body 2 which is detachably fitted to the inner circumferences of both ends of the opening of the steel pipe 1, and when the steel pipe 1 is fitted to the lower part, A pair of arms 3-3 are arranged orthogonally to the frame body 2 at predetermined intervals. This pair of arms 3
-3 is pivotally attached to the frame body 2 and is swingable in the vertical direction. When the frame body 2 is fitted to the steel pipe 1, one end of the arm 3 (hereinafter referred to as an outer end) is outside the steel pipe 1 and the other end (hereinafter referred to as an inner end) is inside the steel pipe 1. Come to be located. The arm 3 is bent into a substantially L shape, and a wheel 4 is attached to the outer end of the arm 3.

And the chain 5-5 is connected to the inner end of the arm 3-3,
The chain 5-5 is further connected to the hanging wire rope 6-6, and the hanging wire rope 6-6 is connected to the hanging metal fitting 7-7. The hanging metal fitting 7-7 is fixed to the frame body 2 by slightly extending downward at a position facing the arm 3-3, and the mounting distance of the hanging metal fitting 7-7 is slightly smaller than that of the arm 3-3. It is getting narrower. Further, a ratchet 8-8 capable of adjusting the length of the chain 5-5 is interposed between the chain 5-5 and the wire rope 6-6, and the ratchet 8-8 causes the ratchet 8-8 to move from the arm 3-3. Hanging wire rope 6
By adjusting the length of the chain 5-5 up to -6 and shortening the length of the chain 5-5, the inner end of the arm 3-3 can be lifted toward the upper portion of the frame body 2.

The above is the outline of the carrier device according to this embodiment, and the details of the pivotally connecting portion between the arm 3-3 and the frame body 2 are as follows.

An arm attachment piece 21 composed of two opposing pieces is fixed to the frame body 2 so as to project upward at a predetermined interval. The arm 3 is positioned between the mounting pieces 21, and the arm 3
The mounting member 21 is penetrated by a shaft, and the arm 3 is swingable around the shaft.

A wheel 4 is attached to the outer end of the arm 3 and its specific structure is as follows.

Two pieces of wheel mounting pieces that are located outside the steel pipe 1 in the arm 3 and extend downward from the lower end of the portion that extends obliquely downward
31 is provided. The wheel mounting piece 31 is integrally extended from both sides of the arm 3, the wheel 4 is arranged between the two pieces, and the shaft body penetrates the end of the wheel mounting piece 31 and the center of the wheel 4. The wheels 4 are adapted to rotate around this shaft. The wheel 4 comprises a center portion 41 of the wheel and a brim portion 42 provided on the peripheral edges of both end surfaces thereof.

The operation of pulling the steel pipe 1 into the sideway a by the transport device having the above-described configuration is performed as follows.

As shown in FIG. 2, a pair of rails bb are laid and fixed on the ground in the road a, and the rails bb are extended to the outside of the road a. The space between the rails b-b is the arm 3 of the carrier.
-3 is equal to the distance between the wheels 4-4 and the width of the rail b-b is such that the center portion 41 of the wheel 4 is placed on the rail and moves along the rail b. There is.

The steel pipe 1 is previously placed on the rail bb outside the trail a. Next, the frame body 2 is fitted to the inner circumference of both open ends of the steel pipe 1, and the chain 5 and the ratchet 8 are provided between the arm 3 and the hanging metal fitting 7.
Etc., and operating the ratchet 8-8 to gradually shorten the length of the chain 5-5, the inner end of the arm 3-3 is lifted upward, and the arm 3-3 swings. Wheels 4-4
Will be placed on the rail b-b. Then, the ratchet 8-8 is further operated to receive the reaction force of the wheel 4-4 on the hanging metal fitting 7-7, whereby the steel pipe 1 is kept in a raised state. If the steel pipe 1 is supported in such a state, a force is applied in the traveling direction, so that the wheels 4-4 move toward the rail b-b.
The steel pipe 1 is moved up and conveyed to a target position.

It should be noted that in this embodiment, the frame body 2 is
It consists of one or more blocks. For attachment to the steel pipe 1, the respective blocks may be jointed and fitted to the inner circumference of the open end of the steel pipe 1, and the appropriate portions may be clamped to the steel pipe 1 with a holding tool such as a shrimp. Also, the frame body 2
At appropriate places, a fall prevention metal fitting 9 having an L-shaped cross section is provided, and the metal fitting 9 may be tightened by a holding tool such as a shavings to prevent the frame body 2 from falling off the steel pipe 1.

Further, the carrier device according to the present embodiment is configured to be suitable for a narrow space, assuming the work of drawing the steel pipe 1 into a narrow side road, but the carrier device of the present invention is not limited to this, and is not limited to this. It can be attached to the outside of the transported object and used in a wide area. Further, if the structure is such that the direction of the wheels attached to the arm can be freely changed, it becomes even more convenient.

Furthermore, the object to be conveyed is not limited to a cylinder, and may have any sectional shape as long as both ends are open.

<Effects> As described above, the carrier device of the present invention can raise an object to be conveyed by a very small amount, and only the wheels project to the outside of the object to be conveyed. It becomes easy to carry a heavy object to be transported to a narrow space.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view of a steel pipe showing a state in which the transportation device of the present invention is mounted on a steel pipe and the wheels are slightly floated, and FIG. It is sectional drawing which shows the state which is being mounted and conveyed on the rail in the road. DESCRIPTION OF SYMBOLS 1 ... Steel pipe, 2 ... Frame body 3 ... Arm, 4 ... Wheel 5 ... Chain, 6 ... Hanging wire rope 7 ... Hanging metal fittings, 8 ... Ratchet

Claims (1)

[Scope of utility model registration request] 1. A pair of arms pivotably attached to a lower portion of a frame body which is detachably fitted to both ends of an opening of a tubular object to be conveyed, and one end side of the arm is conveyed to the object to be conveyed. A carrying device characterized in that a wheel is provided on one end side and a lifting means is provided on the other end side, with the other end being located inside, the other end being located inside.