JPH0442454Y2 - - Google Patents

Description

[Detailed description of the invention] [Field of industrial application] This invention relates to the improvement of the lower rail structure material of hanging doors, which is commonly used at the entrances and exits of simple vinyl houses, etc.
In particular, the present invention relates to a lower rail structural material that can provide a door with improved heat retention required for a plant cultivation house.

[Conventional technology and its problems]

BACKGROUND ART Hanging doors have conventionally been widely used as entrance and exit doors in simple vinyl houses used for cultivating plants and the like. A hanging door is a sliding door that is suspended using at least two rollers running inside a C-shaped steel upper rail as a fulcrum, and usually its lower end is stabilized in the direction of the sliding door while being restricted by the opening of the lower rail member. This is a door that can be opened and closed. Therefore, the conventional lower rail structure material for hanging doors consists of a long shallow C-shaped steel rail (member) having the length necessary for opening and closing the hanging door, and the lower part of the upright structural aggregate (usually a pipe). and a plurality of lower rail mounting brackets to be attached, the lower rail being received in a mating manner inside the deep C-shaped steel mounting brackets and connecting the brackets to the U.
When attached to a structural aggregate pipe with bolts and two nuts, the lower rail is pushed upward inside the metal fittings and firmly clamped and fixed. To attach the mounting bracket to the pipe, hang the U-bolt around the pipe, and insert its parallel legs into the pair of U-bolt insertion holes formed in the opposing side panels of the bracket. This can easily be done by making the fitting protrude from the side plate and tightening both threaded ends with nuts. In this case, the lower rail is inserted into the mounting fitting with its longitudinal openings aligned, and the rail is lifted upward within the fitting while being supported by U-bolts mounted horizontally. Thus, when both ends are tightened with nuts, the lower rail is lifted upward, and the two overhanging plate sections that overhang inside the openings of the respective members are strongly pressed together, and are firmly connected and fixed.

However, in such conventional hanging doors, the strength and stable operability are taken into consideration, especially regarding the lower rail structural material, and both the rail and the mounting bracket are attached to opposite edges of the opening, as described above. A combination of C-shaped steel members in which overhang plate portions are formed that extend inward from each other is used. Therefore, the sheet-clad outer surface of the hanging door and the inner surface of the upright vertical pipe form a gap corresponding to at least the width of the pipe-side overhang of the opposing overhang plate portion that forms the opening of the lower rail. This relatively wide gap reduces the heat retention effect within the greenhouse, and was originally a disadvantage that should be improved as a vinyl greenhouse for growing plants. However, until now this gap has been conceptually accepted as inevitable, and little attention has been paid to its improvement. Therefore, no proposals have been made to improve the doors that reduce such disadvantages and have excellent heat retention, which is desirable for practical purposes, and such improved lower rail structural materials for hanging doors have not been put into practical use. There is no fact that there is.

Therefore, an object of the present invention is to provide a practically desirable lower rail structural material for a hanging door that has excellent house heat retention and stable opening/closing operations.

[Means for solving problems]

In order to achieve the above objective, the inventors of the present invention conducted many trial production experiments, especially on lower rail structural materials, and as a result, they developed a lower rail structural material for hanging doors that is industrially advantageous and extremely desirable from a practical standpoint. .

That is, the present invention provides a lower rail structural material for a hanging door of a simple vinyl house, which comprises a long lower rail member and a plurality of mounting brackets for attaching the member to the structural aggregate, in which the lower rail member has a shallow cross-section. The above-mentioned mounting bracket has an overhanging plate part that overhangs inward only on one edge of the letter shape and is integrally formed over the entire length, which is held inside and fixed to the structural aggregate with U bolts and nuts. , a similar overhang plate part corresponding to the above overhang plate part is integrally formed only on one edge of a deep U-shaped cross section, and the other edge side without these overhang plate parts is in contact with the structural aggregate. To provide the above-mentioned structural material with improved house functions, which is constructed so as to be installed in a house.

The present invention combines both the long shallow C-shaped steel lower rail member and the deep C-shaped steel mounting bracket in the conventional lower rail structure material of the hanging door with the opposing overhanging plate of the opening that constitutes the lower rail of the hanging door. If one side of the section is omitted over the entire length, not only will high heat retention of the house be obtained, but smoother operation as a hanging door or sliding door is guaranteed, and the rail member can be attached to the mounting bracket and This is based on the discovery that it can be firmly and stably connected and integrated with a standpipe.

When installing both members according to the present invention, set the side plate side without the overhanging plate side to the pipe side to which the U-bolt is attached,
They can be easily and firmly connected by tightening the nuts in the same manner as in the past. The length of this lower rail needs to be about twice the width of the hanging door, so in addition to the two upright vertical pipes that make up the entrance/exit,
Furthermore, it is connected and fixed to two to three upright vertical pipes, the number of which is selected depending on the actual situation.

The lower rail structural material of the present invention, which is constructed as described above, can be easily inserted into the fittings by placing the respective mounting fittings on the pipes to be connected, and then slightly rotating the shallow long bottom rail member through the opening. It can be paid to. Depending on the rising depth of the rail member, it is preferable to form a large radius at the cross-shaped bent portion between the bottom plate and the side plate. Furthermore, in the structural member of the present invention, the upper edge of the side plate on which the overhanging plate portion of the mounting fitting is not formed can be slightly bent inward so that it can be placed over the corresponding upper edge of the inner rail member.

[action, effect]

In this way, the lower rail structure material of the present invention not only has excellent installation and removal operability, but also allows the gap between the upright structural aggregate pipe and the outer surface of the hanging door to be substantially the same as the thickness of both members. Therefore, the heat retention effect inside the greenhouse is significantly improved compared to conventional ones. Further, since the opening width of the lower rail member for receiving a predetermined hanging door can be made to correspond to the thickness of the hanging door, it is advantageous in that it can be made smaller than the conventional one.

〔Example〕

Next, the present invention will be explained in more detail with reference to the accompanying drawings.

FIG. 1 is a partial perspective view showing the installed state of an example of the structural member of the present invention. FIG. 2 is a schematic partial explanatory view of the hanging door attached to the upper and lower rails, with some parts omitted.

In the figure, a pair of U-bolts 3 are inserted into the side plates of the deep C-shaped steel mounting bracket 2, which is placed in contact with the upright structural aggregate pipe P and embraces the shallow C-shaped steel lower rail member 1 inside. through hole 4,
4, 4', and 4' are respectively formed, and the U bolt 3, which is hung around the pipe P, is passed through the through hole of each side plate. In that case, the shallow rail member 1 is placed above the horizontally extending U bolt 3, and the rail member 1 is supported in a floating state inside the metal fitting 2. When tightening both ends of the U-bolt 3 protruding from the inner side plate of the house of the mounting bracket 2 with the wing nuts 5, 5, the overhanging plate portion 6 of the rail member 1
is strongly pressed against the overhanging plate portion 7 of the corresponding metal fitting 2, and both members are firmly connected to the structural aggregate pipe P.

The hanging door 8 has a C-shaped steel upper rail 10 firmly connected to the pipe P using the hanging door roller 9 attached to the outside in an overhanging manner as a fulcrum.
The lower edge of the hanging door 8 is
The rail is regulated by being slightly inserted into the opening of the lower rail member that is firmly attached to the lower part of the pipe P. A door guide 11 is attached to the inner lower edge of the hanging door 8 so that the hanging door can be opened and closed more smoothly.

In Fig. 2, a film is stretched on the outside PF of the pipe P to form the side wall of a vinyl house, and the hanging door placed at the entrance of the house is
A film is pasted on its outer surface 8F. The gap between the film stretched on the door and the inner surface of the pipe P is substantially the total thickness of the lower rail member 1 and the metal fittings for attaching the lower rail, which is extremely small compared to conventional hanging doors. This provides excellent house heat retention.

[Brief explanation of drawings]

FIG. 1 is a partial perspective view showing an attached state of an example of the lower rail structural material for a hanging door according to the present invention. FIG. 2 is a partially omitted explanatory diagram of the hanging door attached to the upper and lower rails. Reference numbers in the diagram: 1...lower rail member, 2...rail mounting bracket, 3...U bolt, 5...wing nut, 8...hanging door, 8F...outer side of the hanging door where the film is stretched, 9... ...Roll, 10...Top rail, 1
1...door guide, P...pipe, PF...pipe surface on which the film (side wall) is applied.

Claims (1)

[Scope of utility model registration request] In a lower rail structural material for a hanging door of a simple vinyl house, which is composed of a long lower rail member and a plurality of mounting brackets for attaching the member to the structural aggregate, the lower rail member has a shallow U-shaped cross section on one side. The above-mentioned mounting bracket has a deep U-shaped cross section and is integrally formed with an overhanging plate part extending inward only at the edge over the entire length. A similar overhanging plate portion corresponding to the above overhanging plate portion is integrally formed only on one edge of the structure, and the other edge side without these overhanging plate portions is configured to be attached in contact with the structural aggregate. The above structural material consists of.