JPS5851510Y2 - Synthetic resin protective sheet for columnar objects, etc. - Google Patents

Description

[Detailed description of the invention] The present invention relates to a synthetic resin protective sheet in the form of a column, which is used, for example, to wrap around a bent part of a cooler's piping or through a wall hole. To easily and reliably connect side edges to each other when they are connected, to prevent loose ends from coming out after the connection, and to bend neatly along a curved part of a columnar body or the like.

Conventionally, the sheet body made of synthetic resin was rolled into a cylindrical shape.
In order to connect the left and right edges, a locking groove is formed along the left side edge of the seat body, a locking protrusion is formed along the right side edge, and the locking protrusion is continuous with the locking groove. The idea is to push it in.

However, this has the following drawbacks.

(a) It takes time and effort to connect and push the locking protrusion into the locking groove from the start end to the end, which is inefficient.

0) While inserting the locking protrusion into the locking groove, if the sheet body tries to expand due to repulsive force due to insufficient holding, etc., The parts slide out easily and continuously, and are difficult to finish inserting.

(c) The sheet body becomes thicker and locally hard in the parts where the locking groove's horse-flesh walls and locking protrusions are formed, so when it is rolled into a cylinder, it will not stick to the curved parts of columns etc. along the bend
In addition to being taut or uneven, the locking protrusion sometimes comes out of the locking groove and comes loose.

In order to eliminate the above-mentioned drawbacks, the present invention connects the left and right side edge portions of the seat body intermittently by engaging the locking protrusions and the locking holes, and furthermore, The protrusions and the locking holes are arranged in a staggered manner over the left and right side edge portions of the seat body.

Embodiments of the present invention will be described below with reference to the drawings.

In the figure, reference numeral 1 indicates a sheet body made of synthetic resin, which has appropriate hardness, elasticity, and tenacity.

Along the left and right side edge portions 2 and 3 of the seat body 1, circular locking holes 4 and 5 and mushroom-shaped locking protrusions 6 and 7 are formed alternately in line with each other. Ru.

The locking protrusion 6 on the left side edge portion 2 is provided protruding from the back side thereof, and the locking protrusion 7 on the right side edge portion 3 of the bill is provided protruding from the front side thereof.

The left and right locking protrusions 6 and 7 and the left and right locking holes 4 and 7 are arranged in a staggered manner.

The locking protrusion 6 on the left side and the locking hole 5 on the right side, and the locking protrusion 7 on the right side and the locking hole 4 on the left side are located corresponding to each other.

Each locking protrusion 6, 7 can be inserted into and locked into each locking hole 4.5.

Next, Figure 2 shows how to use it.

That is, the seat body 1 is wrapped around a columnar body 8, and the locking protrusions 6, 7 are inserted into the locking holes 5, 4 while the left and right side edges 2, 3 are overlapped in order from the rear end to the front end. Insert it and lock it.

As a result, the seat body 1 becomes cylindrical, and the columnar bodies 8
protect with a cloak.

As a modification of the above embodiment, it is possible to change a part of it as shown in the following items.

A As shown in the imaginary diagram in FIG. 1, the locking hole 4.5 is made into an oval or oval shape with its long axis along the width direction of the seat body, and the dimension of its short axis S is set as the locking protrusion 7. The diameter d of the mushroom leg should be approximately equal to the diameter d of the mushroom leg, and should be slightly thicker or smaller than that.

B As shown in FIGS. 3 and 4, the peripheral wall 9 of the locking hole 4.5 is formed into a tapered shape to prevent removal, and the cut lines 10 are made at multiple locations in the circumferential direction. Locking protrusion 6
, 7 can be easily inserted into the locking holes 4, 5, and difficult to pull out due to the tension.

C As shown in FIG. 5, the virtual center plane 11a and the upper surface 11b of the locking collar portions 11 of the mushroom-shaped locking protrusions 6, 7.

The lower surface 11c is formed into a tapered shape with a downward twist, so that the locking protrusions 6, 7 can be easily inserted into the locking holes 4.degree. 5 by their elastic deformation, and difficult to pull out by the tensioning action.

D. Combining two or more arbitrarily selected from A, B, and C above.

E As shown in Fig. 6, a plurality of locking holes 4, 5 are arranged in rows in the left and right direction, and the insertion points of locking protrusions 6, 7 into the rows of locking holes 4.5 are determined. By arbitrarily selecting
To enable the diameter of a winding tube formed by a sheet body 1 to be selected in a stepwise manner.

In this case, the sheet body 1 is cut into pieces so that the locking protrusions 6, 7 and the locking holes 4, 5 are divided into two sets as shown in the imaginary diagram or one set as shown in the broken line. You can build a band.

Since the present invention is configured as described above, it has the following effects.

(a) By simply fitting the locking protrusions into the locking holes intermittently, the edges on both sides of the seat body can be quickly and efficiently connected from the beginning to the end.

(b) When the seat body tries to expand due to repulsive force while connecting the opposite side edges of the seat body, the locking protrusion that was inserted and locked earlier and the locking hole are strongly caught. Moreover, since the locking protrusions protrude alternately from both side edges, the locking protrusions are very strong and strongly prevent it from being pulled out.

This makes it possible to connect both side edges of the seat body easily, quickly and reliably.

(c) The seat body has the same thickness and hardness at both the left and right edges where the locking holes and locking protrusions are formed, and the intermediate portion thereof.
This is because it is approximately average; even when formed into a cylindrical shape, it is easy to bend smoothly along the curved part of a columnar body, etc., and can be bent neatly without becoming taut or uneven.

Moreover, the strong hook between the locking hole and the locking protrusion, and the strengthening of the hook due to the alternating arrangement of the locking protrusions, are maintained, so even if there is only a slight bend, the connection between the edges on both sides is maintained. I'll never give you roses 3

[Brief explanation of drawings]

The drawings show an embodiment of the present invention; Fig. 1 is a partially cutaway perspective view, Fig. 2 is a perspective view when in use, Fig. 3 and subsequent figures show other embodiments, and Fig. 3 is a longitudinal cross-section of the main part. 4 is a cross-sectional plan view of FIG. 3, FIG. 5 is a longitudinal sectional front view of the main part, and FIG. 6 is a partially cutaway perspective view. 1... Seat body, 2, 3... Side edge portion, 4゜5... Locking hole, 6, 7... Locking protrusion, 9 ...... Peripheral wall, 11... Locking flange.

Claims (1)

[Claims for Utility Model Registration] 10 Left and right side edge portions 2 of the sheet body 1 made of synthetic resin;
The locking holes 4 and 5 and the locking protrusions 6 and 7 are arranged alternately along the left side edge portion 2 and the locking protrusions 7 on the right side edge portion 3 are opposite to each other. A protective sheet made of synthetic resin, such as a columnar body, which protrudes in a direction such that the respective locking protrusions 6 and 7 can be inserted and locked into the respective locking holes 4 and 5. 2. Scope of Utility Model Registration In the synthetic resin protective sheet such as a columnar body described in claim 1, the locking holes 4 and 5 have an elliptical or oblong shape whose major axis is the width direction of the sheet body 1. thing. 3. Scope of Utility Model Registration In the protective sheet made of synthetic resin such as a columnar body described in item 1 or 2, the locking hole 4
, 5 has a tapered shape that makes it easy to insert the locking protrusion 6° 7 but difficult to remove it. 4. Scope of Utility Model Registration Claims Paragraph 1, Paragraph 2, or Paragraph 3
In the synthetic resin protective sheet such as a columnar body described in 2., the locking flanges 11 of the locking protrusions 6, 7 have a tapered shape that makes it easy to insert into the locking holes 4, 5 but difficult to pull out. What you have.