Rail structure for pipe houses

The rail structure enhances pipe greenhouses by allowing easy installation of a trolley system for transporting materials, addressing load-bearing limitations and labor challenges, while offering versatility and additional uses.

JP3254589UActive Publication Date: 2026-02-13SUNAO FARM CO LTD
View PDF 1 Cites 0 Cited by

Patent Information

Application Number
JP2025003821U
Authority / Receiving Office
JP · JP
Patent Type
Utility models
Current Assignee / Owner
Filing Date
2025-11-04
Publication Date
2026-02-13
Estimated Expiration
2035-11-04

AI Technical Summary

Technical Problem

Pipe greenhouses lack sufficient load-bearing capacity to support overhead cranes, making manual labor-intensive tasks like material transport and pesticide spraying difficult, especially with aging agricultural workers and labor shortages.

Method used

A rail structure composed of a suspension pipe and extension pipe, attached to the greenhouse frame using a wire loop and metal fittings, allowing easy installation and use of a trolley for transporting materials.

Benefits of technology

Enables efficient transport of heavy objects within narrow greenhouse spaces with reduced labor requirements, adaptable to various greenhouse sizes, and provides additional functions like space partitioning and support for blackout curtains.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure 0003254589000001_ABST
    Figure 0003254589000001_ABST
Patent Text Reader

Abstract

To provide a rail structure for a pipe house, which allows a pipe rail to be installed in a pipe house with a narrow frontage or an indoor space without requiring any special technique or labor. [Solution] The pipe rail 16 is configured as a connection of pre-separated suspension pipes and extension pipes. The suspension pipes are suspended from the frame 12 of the pipe house 10 using wires, and the extension pipes connect the suspended suspension pipes at intervals. The suspension pipes have a hole formed approximately in the center in the longitudinal direction, a wire inserted through the hole, and means for fastening the wire to the hole.
Need to check novelty before this filing date? Find Prior Art

Description

[Technical Field]

[0001] This invention relates to a rail structure suitable for use in pipe greenhouses. [Background technology]

[0002] Pipe greenhouses are a type of greenhouse widely used in agriculture. Pipe greenhouses are generally simple greenhouses in which a frame is formed from metal pipes and the entire frame is covered with a film such as vinyl. The frame is composed of arch pipes arranged at approximately equal intervals in the depth direction of the greenhouse and a main pipe extending in the depth direction of the greenhouse (see Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 2024-25024 DISCLOSURE OF THE INVENTION [Problem to be solved by the invention]

[0004] Although pipe greenhouses are simple structures, they do not have excellent load-bearing capacity, so it is not possible to install overhead cranes like those used in factories, etc. Heavy labor such as transporting materials and crops and spraying pesticides could previously be done by labor alone, but due to the recent aging of agricultural workers and labor shortages, it is becoming difficult to solve these tasks with labor alone.

[0005] Therefore, the inventor came up with the idea of ​​a transport device consisting of a combination of a trolley and rails, which could be attached to an existing pipe greenhouse and used as a simple overhead crane. However, there were structural issues to be resolved when attaching long rails to the narrow space of a pipe greenhouse, and the device also had to be easy for farmers to install by themselves.

[0006] The purpose of this invention is to provide a technique for easily attaching transportation rails to pipe houses. [Means for solving the problem]

[0007] In order to solve the above problems, the present invention comprises the following means.

[0008] The rail structure of this invention is a rail structure composed of a suspension pipe suspended from the frame of a pipe house and an extension pipe connected to the suspension pipe, and the suspension pipe has a hole formed approximately in the center of its length, a wire inserted into the hole, and a means for engaging the wire in the hole.

[0009] The rail structure of the present invention may be configured such that one end of the suspension pipe or the extension pipe is inserted into the other end and fixed.

[0010] The wire of the rail structure of the present invention may be locked in the hole by a sleeve crimped at one end thereof.

[0011] The other end of the wire of the rail structure of the present invention may be formed into a loop.

[0012] In the pipe house of the present invention, the other end of the wire is attached to a metal fitting fixed to the frame, so that the suspension pipe is suspended from the wire.

[0013] The pipe house of the present invention may include the rail structure suspended from the frame at multiple points by alternately connecting the suspension pipes and the extension pipes. [Effects of the Invention]

[0014] This device has a split structure in which the suspension pipe and extension pipe are connected to form a rail on which the trolley can run, so even a small number of people can carry in, carry out, and set up each pipe, and it can also be set up in pipe houses with narrow entrances and indoor space. [Brief explanation of the drawings]

[0015] [Figure 1] Diagram showing the structure of a pipe house [Figure 2] Diagram showing the structure of pipe rails [Figure 3] Diagram showing an example of pipe rail use DETAILED DESCRIPTION OF THE INVENTION

[0016] An embodiment of the present invention will be described with reference to the drawings. Figure 1 shows the configuration of a pipe house of the present invention, Figure 2 shows the configuration of a pipe rail of the present invention, and Figure 3 shows an example of how the pipe rail is used.

[0017] [Configuration of a pipe house] First, the structure of a pipe house will be explained with reference to Figure 1. A pipe house 10 is composed of a frame that forms the skeleton and a vinyl membrane that covers the frame. The frame is made up of arch pipes 12, which are curved pipes in an arch shape, and main pipes 14, which are straight pipes. (Figure 1 simplifies the number and arrangement of the pipes.) There are multiple arch pipes 12 of the same type, arranged so that they are evenly spaced along the depth direction of the pipe house 10. There are also multiple main pipes 14 of the same type, arranged so that they are roughly evenly spaced along the width direction of the pipe house 10. The points where the arch pipes 12 and main pipes 14 intersect are fixed with special metal fittings to increase the rigidity of the frame.

[0018] A pipe rail 16 is attached to the arch pipe 12 so that it is parallel to the ground. The pipe rail 16 is used as a track for transporting luggage and the like within the pipe house 10. It is generally preferable to install two pipe rails 16 at an appropriate interval in the direction of the frontage of the pipe house 10, but one pipe rail is sufficient if it is not being used to transport large or heavy objects. The pipe rail 16 may also be attached to the main house pipe 14.

[0019] [Pipe rail configuration] Next, the configuration of the pipe rail will be described with reference to Figure 2. The pipe rail 16 is a long rod-shaped pipe formed by connecting a previously divided suspension pipe 18 and an extension pipe 20. The suspension pipe 18 has a diameter of approximately 19 mm (straight pipe standard 19.1) and a length of approximately 30 cm. A hole 22 is formed in the suspension pipe 18 at approximately the center in the longitudinal direction. The tip of a wire 24 is inserted into the hole 22, and the rear end of the wire 24 is crimped with a sleeve 26 to prevent it from slipping out of the hole 22. The tip of the wire 24 passed through the hole 22 is bent into a ring shape and fixed with a sleeve 28 to form a circular ring portion 30.

[0020] The extension pipe 20 has a diameter of approximately 25 mm (straight pipe standard 25.4) and a length of approximately 100 to 600 cm. Because the extension pipe 20 has a larger diameter than the hanging pipe 18, the two can be connected by inserting the end of the hanging pipe 18 into the extension pipe 20. The extension pipe 20 may be made smaller in diameter so that it can be inserted into the hanging pipe 18, or a pipe of the same diameter may be formed with a tapered portion at the end for connection. Because pipe houses 10 come in a wide variety of shapes and sizes and the spacing between the arch pipes 12 is not uniform, extension pipes 20 of different lengths may be prepared in advance and a length that matches the spacing between the hanging pipes 18 may be selected, or the pipe may be cut to the appropriate length each time before cutting.

[0021] [How to install pipe rails] Next, a method for installing the pipe rail 16 in the pipe house 10 will be described.

[0022] First, metal fittings are attached to the arch pipes 12. The metal fittings are used to secure the wires 24 of the suspension pipes 18 to the arch pipes 12. The metal fittings are attached to the same position on each arch pipe 12. The metal fittings may be attached to all arch pipes 12, or to every other arch pipe 12, and may be attached at appropriate intervals depending on the distance between the arch pipes 12.

[0023] Next, the suspension pipe 18 is attached to the metal fittings attached to the arch pipe 12. The suspension pipe 18 is suspended from the arch pipe 12 by hooking the annular portion 30 of the wire 24 onto the metal fittings or fastening it with a bolt or the like.

[0024] Next, extension pipes 20 are connected to the hanging pipes 18 suspended from the arch pipes 12. By connecting the hanging pipes 18 with the extension pipes 20, a continuous long pipe rail 16 is formed.

[0025] [Example of pipe rail use] Next, an example of how a pipe rail is used will be described with reference to Figure 3. The pipe rail 16 is primarily used as a track for the trolley 32. The trolley 32 has a set of three rollers 34 facing each other on its upper part, and the rollers 34 roll while in contact with the side of the pipe rail 16, allowing it to travel along the pipe rail 16. Because a clearance is provided between the three opposing rollers 34, the trolley 32 can travel smoothly from one end of the pipe rail 16 to the other without coming into contact with the wire 24.

[0026] A rod 36 is attached to the bottom of the trolley 32, and various objects can be attached to the tip of the rod 36. For example, with the help of the trolley 32, items that previously had to be carried or moved manually, such as containers for storing seedlings or harvested crops, or machines and pipes for spraying pesticides, can now be transported with less effort.

[0027] In addition to being used as a track for the trolley 32, the pipe rail 16 can also be used as a partition to divide the interior space of the pipe house 10, or as a support member for blackout curtains to adjust the amount of sunlight.

[0028] By making the pipe rail 16 a divided type (or a connected type) instead of a finished product, the following advantages are obtained. (1) The pipe rail 16 can be divided and transported into and out of the pipe house 10, so a long pipe rail 16 can be installed regardless of the size of the frontage or the size of the interior space of the pipe house 10. (2) The finished pipe rail 16 is long and heavy, so a certain number of people are required for installation and removal work. However, if it is a split type, all work can be completed by one person or a small number of people. (3) In the case of the split type, the pipe house 10 can be adapted to a wide variety of types by adjusting the number and length of the extension pipes.

[0029] Furthermore, the pipe rail 16 is attached in a suspended manner using the wire 24, which has the following advantages. (1) The flexibility of the hanging wire 24 creates a moderate amount of play between the arch pipe 12 and the hanging pipe 18, making it easier to install the hanging pipe 18 and connect it to the extension pipe 20. (2) When the pipe rail 16 is used as a running track for the trolley 32, the vibrations and shaking caused by the transport of cargo can be absorbed by the wire 24. (3) When the pipe rail 16 is used as a partition or a support member for a blackout curtain, wind pressure can be absorbed by the wire 24. [Explanation of symbols]

[0030] 10 Pipe House 12 Arch Pipe 14 Purlin pipe 16 Pipe Rail 18 Hanging pipe 20 Extension pipe 22 Hole 24 wire 26 sleeve 28 sleeve 30 Annular section 32 Trolley 34 Roller 36 Rod

Claims

1. A rail structure composed of a combination of a suspension pipe suspended from the frame of a pipe house and an extension pipe connected to the suspension pipe, The suspension pipe includes a hole formed at approximately the center in the longitudinal direction, a wire inserted through the hole, and a means for engaging the wire with the hole. Rail structure.

2. The suspension pipe and the extension pipe are fixed by inserting one end into the other end. The rail structure according to claim 1 .

3. The wire is retained in the hole by a sleeve crimped at one end thereof. The rail structure according to claim 1 or 2.

4. The other end of the wire is formed into a ring shape. The rail structure according to claim 1 or 2.

5. A pipe house equipped with the rail structure according to any one of claims 1 to 4, The other end of the wire is fastened to a metal fitting fixed to the frame, thereby suspending the suspension pipe from the wire. Pipe house.

6. The rail structure is suspended from the frame at a plurality of points by alternately connecting the suspension pipes and the extension pipes. The pipe house according to claim 5.

Citation Information

Patent Citations

  • Agricultural greenhouse

    JP2024025024A