JP7190691B2 - Cylinder transport assist device - Google Patents

Description

Application of Article 30, Paragraph 2 of the Patent Act (1) Published by The Institute of Electrical Engineers of Japan on March 5, 2018 Released on DVD pages 164 and 165 of "2018 Annual Conference of the Institute of Electrical Engineers of Japan" (2) Heisei Released at the 2018 National Convention of the Institute of Electrical Engineers of Japan held at Ito Campus, Kyushu University (744 Motooka, Nishi-ku, Fukuoka City) on March 15, 2018.

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cylinder carrying assist device that can be suitably used when carrying various cylinders manually.

Gas cylinders, liquefied gas cylinders, high-pressure liquid cylinders, and other high-pressure cylinder containers are formed in a pressure-resistant cylindrical shape, and when they are manually transported, they are often carried on a cylinder-transporting trolley with casters at the bottom. (See Patent Document 1, for example). When a trolley with casters is not used, the cylinder is tilted and held in an upright state, and transported while rotating so that the bottom part rolls on the floor or the ground. Using the above cart for transporting cylinders makes it easy to transport, but in narrow places where the cart cannot fit or where there are uneven surfaces where the casters do not rotate well, such as crushed stone floors in substation premises, etc. Unable to use a trolley for transporting cylinders. In addition, since the outer peripheral surface of the cylinder is formed in a cylindrical shape, the cylinder easily rolls when it is placed sideways on the ground or floor surface. It is difficult to hold the cylinder and it is very difficult to carry it. In addition, since the bottom of the cylinder is slippery on gravel or crushed stone surfaces, it becomes unstable when held in an upright position and rotated, making it difficult to carry without hindrance.

At present, there is a carrying device in which an annular ring is fitted to a cylinder container and a handle protruding in a substantially U-shaped shape on one side of the ring is used to carry the cylinder, and a semi-circular member in a substantially U-shaped shape on both sides of the member is currently used. A carrying device for carrying a cylinder holding a cylinder container from both sides by providing a handle is commercially available as a cylinder carrying assist device. However, a carrier having only one handle cannot be carried by a plurality of people by holding the handle, and when the cylinder is rotated in an upright position, the handle is an obstacle to the rotation of the cylinder. A carrying device having handles on both sides also becomes an obstacle when the cylinder is rotated and carried in an upright state. Thus, the currently used cylinder carriers are not entirely satisfactory.

Japanese Patent Application Laid-Open No. 11-91574 (Claims, Fig. 1)

The problem to be solved by the present invention is that it is easy to hold when lifting and carrying a cylinder without using a trolley, does not get in the way even when moving the cylinder while rotating in an upright state, and does not get in the way of gravel or crushed stone. To provide a cylinder carrying assisting device which can be stably carried even on the ground.

According to the present invention, there is provided a cylinder fastening ring that is fastened to the outer periphery of the cylinder container, an annular connecting ring that surrounds the outside of the cylinder fastening ring, and an annular gripping ring that is positioned outside the connecting ring. The cylinder fastening ring and the connecting ring are connected by a radially extending connecting shaft, and the connecting ring and the gripping ring are connected by a connecting member so as to form a gripping space. Provided, the above problems are solved.

Further, according to the present invention, the cylinder clamping ring is formed in a substantially C shape having an open end, the inner surface is provided with a non-slip member, and the open end is provided with a fastener for tightening the cylinder clamping ring. is provided, the base end of the connecting shaft is fixed to the cylinder fastening ring, the tip is inserted into the connecting hole provided in the connection ring, and the tip is provided with an enlarged head. provided. Further, there is provided the cylinder carrying assisting instrument having the grip ring formed in a non-circular outer shape and having an elastic bottom member fitted to the bottom of the cylinder container.

Further, according to the present invention, an annular cylinder clamping ring surrounding the outer periphery of the cylinder container and an annular gripping ring surrounding the outer periphery of the cylinder clamping ring are provided. The clamping ring piece and the gripping ring piece are formed so as to be openable, and the gripping ring piece is connected by a hinge. A cylinder carrying assist device is provided which is connected by an extending connecting member and the open end of the grip ring is provided with a fastener for tightening the cylinder clamping ring to the cylinder container.

The cylinder carrying assist device of the present invention is constructed as described above, and is fixed to the cylinder by fastening the cylinder clamping ring to the outer periphery of the cylinder container, and has an annular shape having a gripping space outside the cylinder clamping ring. Since the gripping ring is provided, one or more people can hold the gripping ring when carrying the cylinder. At this time, when the gripping ring is lifted, the tip of the connecting shaft and the connection member whose base end is fixed to the cylinder clamping ring is lifted, so that the upper part of the cylinder clamping ring exerts a force in the direction of pressing against the cylinder container. , the assist device is securely fixed to the cylinder, and there is no danger of it falling off. When rotating the cylinder in the upright state, since the gripping ring is annular, rotation of the cylinder does not interfere with the work. At this time, the assisting device can be fixed at an optimum position for easily holding the cylinder according to the height of the operator, the weight of the cylinder, and the like, so that workability can be improved.

When an elastic bottom member is fitted to the bottom of the cylinder container, slippage on the ground is prevented, and smooth rotational movement is possible even on a crushed stone surface. In addition, even if it is temporarily placed sideways, the gripping ring prevents the valve portion of the cylinder from coming into contact with the ground. In addition, the open end of the cylinder clamping ring is tightened with a fastener to fix the cylinder clamping ring to the cylinder container, and the connecting shaft provided on the cylinder clamping ring is inserted into the connecting hole provided on the connecting ring. Since the length of the connecting hole is formed into a long groove extending in the circumferential direction, or the length of the connecting shaft is formed to be long so that the connecting shaft can move freely in the connecting hole, the diameter can be reduced. Also, if the degree of freedom of the connecting shaft in the connecting hole is reduced, the connecting ring can be firmly fixed to the cylinder container.

FIG. 10 is a perspective view showing Example 1 and in a state of use; FIG. 2 is a partially omitted cross-sectional view of FIG. 1; 1 is a perspective view showing Example 1. FIG. Plan view. Front view. Fig. 2 is a plan view of a state in which the cylinder fastening ring is not tightened; FIG. 10 is an explanatory diagram showing the second embodiment and a state in which the gripping ring is closed; Explanatory drawing of the state which opened the holding|gripping ring. FIG. 11 is a perspective view showing Example 3 and in a state where the grip portion is closed;

INDUSTRIAL APPLICABILITY The present invention can be used as a transport assist device for various cylinders, and FIG. In the figure, the assist device of the present invention consists of a cylinder clamping ring 2 that is clamped to the outer periphery of a cylinder container 1, an annular connecting ring 3 that surrounds the outside of the cylinder clamping ring 2, and a It has a positioned annular gripping ring 4 .

The shape and function of each constituent member will be described with reference to FIGS. 2 to 5. FIG. The cylinder fastening ring 2 is formed of a substantially C-shaped band-like ring having an open end, and the inner surface thereof is provided with an anti-slip member 5 made of synthetic rubber, elastic synthetic resin material, leather, or the like. In the embodiment shown in FIG. 3, the non-slip member 5 is attached to the entire inner surface of the fastening ring 2. However, if the necessary gripping force can be exhibited, the flat portion may be provided with a large number of round holes, square holes, or the like. It is also possible to adjust the gripping force by forming an open punch plate shape or forming a striped shape with gaps in the circumferential direction. It is also possible to make it more difficult to slip by providing punched holes or by providing a striped non-slip member rather than contacting with a flat surface.

A fastener 6 for tightening the cylinder fastening ring 2 is provided at the open end, and various fasteners such as a spring structure fastener can be used as the fastener. A pull clamp is provided. The pull clamp has a locking device 7 fixed to one open end, a clamp lever 8 pivotally attached to the other open end, and a locking ring 9 provided on the clamp lever 8 hooked to the locking device 7. By rotating the clamp lever 8, the space between the open ends is drawn, and the cylinder clamping ring 2 is tightened so that it can be fixed to the cylinder container 1. As shown in FIG. Here, the opening edge width G1 (see FIG. 4) can be adjusted by constructing the locking member 7 as a plurality of latching pieces 7a and 7b provided at regular intervals of approximately 3 to 10 mm. can be done. Further, screw portions 9a and 9b for fine adjustment of the opening end width G1 and cylinder clamping force are provided on the locking ring 9 on the clamp lever 8 side.

Base ends of a plurality of connecting shafts 10 extending in the radial direction are fixed around the cylinder clamping ring 2 by welding or the like. there is

The size of the bomb container shown in the above example is 232 mm in diameter, 1510 mm in height, and 50 kg in weight. In general, cylinder containers vary in size, but have a diameter of 100 to 300 mm, a height of 500 to 1600 mm, and a weight of 10 to 100 kg. 4 and 5, the maximum diameter of the grip ring 4 can be changed from 400 to 500 mm, and the inner diameter of the cylinder clamp ring 2 can be changed from 190 to 250 mm. . The diameter of the gripped portion of the grip ring 4 is 25 to 40 mm, the length L of the connecting shaft 10 excluding the enlarged head 11 is 25 to 40 mm, the thickness is 10 to 20 mm, and the cylinder clamping ring 2 is in close contact with the cylinder container. The height is 40 to 80 mm, the one shown in the figure is 60 mm.

The connecting ring 3 is formed of an annular belt-like ring surrounding the cylinder tightening ring 2, and the portion corresponding to the fastener 6 is notched so that the fastener can be operated from the outside. The connecting ring 3 is provided with a connecting hole 12 through which the shaft portion of the connecting shaft 10 is inserted. The connecting hole 12 is slightly larger than the outer diameter of the connecting shaft 10 so as to allow the cylinder tightening ring 2 to slightly contract in diameter when the cylinder tightening ring 2 is tightened. In the embodiment, the diameter is approximately 2 to 6 mm, preferably approximately 4 mm. If the length of the connecting hole 12 in the circumferential direction is increased to form a long groove, or if the length of the connecting shaft 10 is increased so that the connecting shaft 10 can freely move in the connecting hole 12 in the circumferential direction, It can be used as an assisting device for a plurality of cylinders with different diameters (not shown).

As described above, the length of the connecting shaft 10 excluding the enlarged head portion 11 at the tip is L, and the center of all the connecting shafts 10 in the length direction and the center of the connecting ring 3 in the thickness direction correspond to each other. When the diameter of the clamping ring 2 is D0, the diameter D of the cylinder clamping ring 2 is D=D0±L, and in this case the required opening end width G1 is 2πL. With D0=220 mm and L=30 mm, the minimum diameter of the cylinder container is 190 mm and the maximum diameter is 250 mm. Here, the opening end width G1 is G1=189 mm when the degree of freedom of the diameter of the cylinder container that can be handled is maximized. Since the opening width is considerably large in the above case, the length of the connecting shaft 10 and the opening end width G1 are limited by the maximum weight of the cylinder to be handled.

On the other hand, if the length of the connecting shaft 10 inserted into the connecting hole 12 is shortened to eliminate the degree of freedom in the circumferential direction and the opening end width G1 is shortened, the connecting ring 3 can be robustly and stably even with a heavy cylinder. and the cylinder clamping ring 2 can be fixed to the cylinder. Since the proximal end of the connecting shaft 10 is fixed to the connecting ring 3 so that the enlarged head 11 is positioned outside the connecting hole 12, the connecting shaft 10 does not escape from the connecting hole 12.

As described above, the cylinder clamping ring 2 must have elasticity enough for the maximum opening width G1 of the opening end to be in close contact, and is made of high-carbon steel, alloy steel, stainless steel, etc., which are used for leaf springs and the like. It is preferable to construct it, but it can also be made of an appropriate material that provides a certain elasticity and weldability and adhesiveness to the connecting shaft. Various materials can be selected according to the size, weight, and required gripping force of the target cylinder container.

The connecting ring 3 and the gripping ring 4 are connected by a radially extending connecting member 14 so as to form a plurality of gripping spaces 13 . As shown in FIG. 2, the connecting member 14 is made of a rod-shaped pipe material, and its both ends are fixed to the holding ring 4 made of an annular pipe material and the connecting ring 3 by welding or the like. The connecting ring, connecting member and gripping ring may be integrally formed. The outer periphery of the gripping ring 4 is preferably non-circular and, in the embodiment shown in the figures, octagonal in plan view, but may also be formed in other polygonal or circular shapes. As shown in the figure, if the grip ring 4 is formed in a substantially octagonal or polygonal shape, the outer shape of the grip ring 4 is formed with a straight portion. 4, the connecting member 14 can be welded to this straight portion, thereby ensuring sufficient strength and improving the efficiency of the welding work. In addition, rolling can be prevented when the cylinder is temporarily placed sideways.

The bottom of the cylinder container 1 is fitted with a bottom member 15, preferably made of a resilient material. The bottom member 15 prevents the bottom of the cylinder container from slipping even if gravel, crushed stone, or the like is laid on the ground, making it easy to carry the cylinder.

In order to use the assist instrument of the present invention with the above configuration, the cylinder container 1 is erected, the cylinder clamping ring 2 is fitted around the outer circumference, and the cylinder clamping tool 2 is tightened at a height convenient for the work, and the cylinder container is opened. Fixed to 1. In order to lift and carry the device, one person can grasp the gripping ring 4 with both hands, or multiple people can grab the gripping ring 4 from the surroundings and lift it up. At this time, when the gripping ring 4 is lifted, the tip of the connecting shaft 10 whose base end is fixed to the cylinder clamping ring 2 is lifted, and the cylinder container 1 is placed above the cylinder clamping ring 2 made up of a belt-shaped ring. Since a force is applied in the direction of pressing against the cylinder, the cylinder clamping ring 2 can be more securely fixed to the cylinder container 1, and there is no fear of falling off during transportation. In addition, when the cylinder container is tilted and rotated in an upright state, the grip ring 4 is formed in an annular shape, so that it does not interfere with the work, and the cylinder container can be smoothly rotated and transported to a desired location. can.

In the first embodiment, the cylinder clamping ring 2 and the gripping ring 4 are connected via the connecting ring 3, but the connecting ring 3 can be omitted. A second embodiment will be described with reference to FIGS. 7 and 8. FIG. The assist device has an annular cylinder fastening ring 16 surrounding the outer periphery of the cylinder container and an annular gripping ring 17 surrounding the outer periphery of the cylinder fastening ring 16 . The cylinder clamping ring 16 is composed of a pair of clamping ring pieces 18 formed of semicircular strips, and the gripping ring 17 is composed of a pair of clamping ring pieces 19 formed of semicircular pipe pieces. consists of The grip ring piece 19 is connected with a hinge 20 so as to be openable. An elastic non-slip member 21 is provided on the inner surface of the cylinder fastening ring 16 . The cylinder fastening ring 16 and the gripping ring 17 are connected by a connecting member 23 extending radially to form a gripping space 22 and having both ends fixed to the cylinder fastening ring 16 and the gripping ring 17 . On the outer or inner surface of the open end of the gripping ring 17 is provided a suitable fastener 24 having a pull clamp or spring structure as described above for tightening the cylinder clamping ring 16 to the cylinder container. The outer shape of the grip ring 17 is preferably formed in a non-circular shape such as an octagon as shown in FIG. 1, but in FIG. 7 it is formed in a circular shape.

With the above configuration, when the clamp 24 is opened by operating the crank lever, the whole is opened as shown in FIG. Then, the cylinder clamping ring 16 is fixed to the cylinder container by the fastener. When the gripping ring 17 is pulled up, the outer end of the connecting member 23 rises, but since the cylinder clamping ring 16 is fixed to the cylinder container, the upper part of the strip-shaped cylinder clamping ring is pressed against the cylinder container. It is more securely fastened to the cylinder container and is difficult to fall off.

The non-slip member 21 provided on the cylinder clamping ring 16 can be made into a punched plate shape with many round or square holes, or a striped shape with gaps in the circumferential direction, as long as the required gripping force can be exhibited. , it is also possible to adjust the gripping force. It is the same as that explained in FIG. 3 of the first embodiment that punch holes or striped non-slip members can make it more difficult to slip than a flat surface.

Here, as shown in FIG. 7, if the latching pieces 25a and 25b of the locking member 25 of the fastener 24 are spaced at a constant interval of approximately 3 to 10 mm, the opening end width G2 can be adjusted. can. A threaded portion 27 for fine adjustment of the opening end width G2 and the cylinder clamping force is provided on the locking ring 26 on the side of the clamp lever.

7 and 8, the maximum diameter of the grip ring 17 of the assist device of the present invention is 350 mm, and the inner diameter of the cylinder clamping ring 16 varies from 220 to 240 mm. It is possible. The height at which the cylinder fastening ring 16 is in close contact with the cylinder container is 60 mm.

Here, if the opening end width G2 is X and the diameter of the cylinder clamping ring 16 when X=0 is D0, the relationship between X and the diameter D of the cylinder clamping ring 16 is D=D0+X/π. , D0=220 mm, and the maximum diameter of the cylinder is 240 mm, the required opening end width G2 is 62 mm. Here, in order to increase the degree of freedom in the diameter of the cylinder that can be handled, the width of the opening end G2 must be large, but if the width of the opening increases, the maximum weight of the cylinder that can be handled is limited. By reducing the opening end width G2 and eliminating the degree of freedom in the circumferential direction in this manner, the connection ring and the cylinder clamping ring can be firmly and stably fixed even for a heavy cylinder.

As described above, for the cylinder clamping ring 16, together with the gripping ring 17, a metallic material such as iron or aluminum or other material that can provide a certain strength and weldability and adhesiveness to the gripping member 23 can be used. The material can be selected according to the required value of size, weight, and gripping force of the target cylinder container.

Further, a disc-shaped tire having a rotating shaft as a center can be horizontally attached to the bottom of the cylinder to facilitate carrying and moving the cylinder. Example 3 will be described with reference to FIG. In FIG. 9, the gripping portion 28 is shown in the second embodiment in which a pair of gripping ring pieces 19 are connected by a hinge 20 to form the gripping ring 17, but the gripping portion 28 of the first embodiment is used. can also Connecting means 30, 30a, 30b for connecting the fixing ring 29 and the grip ring 17 are constituted by rod-like or pipe-like members extending along the cylinder container. The connecting means 30, 30b corresponding to one of the gripping ring pieces 19 are fixed at both ends to the fixing ring 29 and the connecting ring piece 19, and the connecting means 30a on the other gripping ring piece 19 has one end fixed to the fixing ring. 29 or the gripping ring piece 19 is rigidly connected so that it can be opened and closed. In the example of the connection means 30a shown in FIG. 9, one end is firmly connected to the grip ring piece 19, the other end is connected to the fixing ring 29 by a connection structure such as fitting, and the opening side can be opened by applying a slight force. It can be opened outward according to the movement of the grip ring piece 19 . The connection means 30a is fixed to the fixing ring 29 when the cylinder is fixed, but if strength is required, instead of fitting, it can be strengthened by providing a screw on one side and fixing the other side with a nut. The fixed ring 29 is fixedly connected to a rotating shaft 31 provided in the center by, for example, spokes 32, which are radial first connecting means. The tire portion 34 is composed of a wheel base 35 of a tire and a rubber tire 36, and is fixedly connected to the bearing portion 33 by, for example, spokes 37, which are radial second connecting means. The bearing portion 33 preferably has a structure capable of withstanding a load in the vertical direction.

With the above construction, the gripping ring 17 is opened as shown in FIG. 8 to place the lower portion of the cylinder on the fixing ring, and the gripping ring is closed to be fastened to the cylinder container. As a result, the cylinder can be easily transported because the tire portion 34 in contact with the ground rolls lightly by the bearing portion 33 simply by tilting the cylinder obliquely.

Each of the above-described embodiments is not limited to work on crushed stone floors in substations where carts cannot be used, but can be used anywhere where cylinders are transported, such as flat general homes, factories, and research laboratories. .

As described above, the cylinder transport assisting device described in the embodiment reduces the burden on the operator and leads to improvement in work efficiency and safety. Here, the transportation of cylinders has been specifically described, but the objects to be transported are not limited to cylinder containers, and the scope of the present invention also includes application to cylindrical objects such as logs.

1 cylinder container 2 cylinder clamping ring 3 connecting ring 4 gripping ring 6 fastener 10 connecting shaft 12 connecting hole 13 gripping space 14 connecting member 15 bottom member

Claims (3)

The cylinder fastening ring comprises a cylinder fastening ring fastened to the outer periphery of the cylinder container, an annular connecting ring surrounding the outside of the cylinder fastening ring, and an annular gripping ring positioned outside the connecting ring. The ring and the connecting ring are connected by a connecting shaft extending in the radial direction, the connecting ring and the gripping ring are connected by a connecting member so as to form a gripping space, and the cylinder clamping ring is formed in a substantially C shape having an open end. The inner surface is provided with a non-slip member, the open end is provided with a fastener for tightening the cylinder tightening ring, the base end of the connecting shaft is fixed to the cylinder tightening ring, and the tip is connected A device that assists in transporting cylinders that is inserted into a connecting hole provided in a ring and has an enlarged head at the tip . 2. A device for assisting in transporting a cylinder according to claim 1 , wherein the connecting hole through which the connecting shaft is inserted is sized to allow the connecting shaft to move in the circumferential direction of the connecting ring. 3. A device for assisting in carrying a cylinder according to claim 1, wherein said gripping ring has a non-circular outer circumference.

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