JPH049809Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to outer shelves used in parks, amusement parks, promenades, etc., and more specifically relates to improvements to artificial wooden shelves made of synthetic resin.

[Prior Art] Fake wood shelves made of synthetic resin and given a trunk-like appearance are suitable for the surrounding environment, have excellent durability, and are easy to construct, so they have come to be widely used. This outer shelf has vertical supports arranged at predetermined intervals, and crossbars are placed between the supports to form a shelf.

As shown in Fig. 2, the method of connecting the column and crosspiece is to provide a crosspiece fitting cavity 2 and a connecting bolt insertion hole 6 on both the left and right sides of the column 1, and insert the connecting bolt 4 inserted into the insertion hole.
Screw the left-hand threaded part of the ring nut 9 welded to the reinforcing metal tube 8 fitted into the inner surface of the crosspiece inserted into the left fitting hole, connect it to the column with the tightening nut 7, and then insert the right side crosspiece. A reinforcing metal tube with a ring nut welded to the end thereof is inserted into the crosspiece, and the ring nut is screwed and fixed to the right end of the connecting bolt 4 while rotating the reinforcing metal tube together with the crosspiece.

[Problems to be solved by the invention] However, in the above coupling method, the fit between the crosspiece body and the reinforcing metal tube 8 fitted inside is not strong, and the crosspiece body can move relatively from side to side. It can expand or contract in response to temperature changes without concentrating strain, and has the effect of preventing cracks in the horizontal beams. On the other hand, in cold seasons in cold regions, the horizontal beams shrink in volume and become difficult to connect with the fitting cavities of the vertical supports. There may be a gap between the parts and the parts may rotate around the central axis, and when a person holds on to the crossbars to maintain their posture or sits down,
There is a risk of causing unexpected injury.

The rotation of the crosspiece can be prevented by driving nails through both the crosspiece and the support, by mortising the end of the crosspiece and providing corresponding mortises in the support, or by making the entire crosspiece a square post and supporting it. There are methods such as making the fitting cavity square, but these methods can cause cracking and corrosion, are difficult to process and cause problems in terms of manufacturing costs, and are undesirable from an aesthetic point of view. We needed an improvement, not a method. The present invention solves the above problems.

[Means for Solving the Problems] The synthetic resin artificial wood outer shelf according to the present invention includes a support 1 having crossbar fitting holes 2 on both left and right sides, and a crosspiece inserted between the fitting holes of both adjacent supports. 3. A connecting rod 11 having both ends threaded and fixed by screwing means at the crosspiece fitting portion of the left column inserted through the crosspiece, with the end protruding from the crosspiece fitting cavity of the right column; It consists of a long nut 12 that is screwed into the protruding end of the crosspiece fitting cavity of the connecting rod and which can be screwed to the end of another connecting rod, and has a beveled face 5 cut out at the end of the crosspiece. It is characterized in that the inner end of the fitting cavity is formed in a shape that matches the end of the crossbar.

To explain the present invention based on the drawings, Fig. 1 is a vertical cross-sectional view of the connection between the support and crossbars of the outer shelf.
An insertion hole 6 for the connecting rod 12 is formed in the column, and a fitting cavity 2 for the crosspiece is provided in the outer wall on both the left and right sides of the column.
At the rear end, a slope 10 is formed which matches the diagonal cut surface 5 of the crosspiece, which will be described later. This slope 10 may be provided at any corner of the upper, lower, left or right corner of the inner end of the fitting cavity. The end of the crosspiece 3 has a beveled surface 5 cut out at an appropriate angle with respect to the end surface, and the crosspiece is inserted deep into the fitting cavity of the support so that the sloped surface 10 and the beveled surface 5 are in contact with each other. It's summery.

[Operation] The support 1 and the crosspiece 3 are connected as follows. The left end of the connecting rod 11, which has a required length in consideration of the center-to-center length of the left and right struts and has both ends threaded, is fixed by being connected to the fitting cavity of the left crossbar by screwing means.

Insert the crosspiece into this connecting rod through the reinforcing metal tube inner cavity, fit the left end of the crosspiece into the fitting hole of the left column, then move the temporarily positioned column and insert the fitting hole of the column into the end of the crosspiece. At the same time, the right end of the connecting rod is exposed to the right side of the fitting cavity, and a long nut 12 is attached to the end of the connecting rod.
Screw them together and screw them all the way to the end face of the fitting cavity, then tighten and secure the left side crosspiece between the left and right columns.

Next, the left end of the connecting rod 11 corresponding to the right crosspiece is connected to the right half of the long nut 12 by screwing, and the same operation is repeated.

According to this connection method, unlike the conventional connection method, a ring nut is not attached to the reinforcing metal tube, so that the manufacturing process of the reinforcing metal tube is simplified and the assembly work of the outer shelf is also simplified.

In this way, by providing a beveled surface on the crosspiece and a slope in the fitting cavity, and making them contact each other, rotation of the crosspiece is completely prevented even if the crosspiece shrinks due to low temperatures and some gaps are created. .

Incidentally, the slope 10 is provided on the support during the molding process, and the crosspiece can be easily formed by cutting a long product into a regular length and then cutting the end portion diagonally.

[Effects of the invention] According to the invention, it is possible to reliably prevent the rotation of the crosspiece even if the artificial wood shrinks under low temperatures in winter, and is very effective in preventing danger.There is no need for processes such as nailing and tenon cutting. It is possible to maintain an appearance suitable for the surrounding environment. Furthermore, it is easy to mold and install,
Effective as a synthetic resin outer shelf.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal cross-sectional view of the joint between the pillars and crossbars of the artificial wooden outer shelf of the present invention, and FIG. 2 is a vertical cross-sectional view of the joint between the pillars and crosspieces of the conventional art. 1... Strut, 2... Fitting cavity, 3... Crossbar, 4...
...Connecting bolt, 5...Beveled surface, 6...Insertion hole, 7
...Tightening nut, 8...Reinforcement metal pipe, 9...
Ring nut, 10... slope, 11... connecting rod,
12...Long nut.

Claims (1)

[Scope of utility model registration request] A column 1 has a crosspiece fitting cavity 2 on both left and right sides, a crosspiece 3 is inserted between the fitting cavities of both adjacent columns, and both ends are threaded and the crosspiece is inserted through the crosspiece at the crosspiece fitting part of the left column. A connecting rod 1 fixed by screwing means and having an end protruding from a crosspiece fitting cavity of the right support column.
1, and a long nut 12 which is screwed into the protruding end of the crosspiece fitting cavity of the connecting rod and which can be screwed to the end of another connecting rod, and has a beveled surface 5 cut at the end of the crosspiece. A synthetic resin fake wood outer shelf, characterized in that the back end of the crossbar fitting cavity is molded into a shape that matches the end of the crossbar.