JPH0519357Y2 - - Google Patents

Description

[Detailed description of the invention] [Background of the invention] This invention relates to a belt joining aid used when joining belts such as felt for paper making into an endless shape on a paper machine.

[Background of the invention] Bands such as felt for paper making are manufactured in a flat shape,
It is joined endlessly on the paper machine. Therefore,
Joining loops are formed in advance on both edges of such a strip, and the joining loops are overlapped with each other on the paper machine so that the core wire can be passed through the common hole thus created and joined.

However, depending on the size of the paper machine, such strips are long, wide, and heavy, so the above joining process requires pulling both ends of the strip in the direction of abutting each other. Not only were a large number of workers needed to tension the joints and to insert the core wires through the joints, but also the common holes were not aligned when the joining loops were superimposed, making it difficult for the core wires to pass through, which took a lot of time. for example,
For a paper machine with a machine width of 5 m, 4 workers will need approximately 1
It usually took about half an hour.

In order to reduce this band joining work, two methods have been used in the past. One is to fix one end of the band to a board by nailing it, and use this board as a guide to butt the other end.The second method is to sew open fasteners to both ends of the band and attach them to the board. This method involves sliding the fastener slider to connect the two ends of the band.

However, in the former method, if a board with the same length as the width of the strip is used, it is heavy and it is difficult to place the board itself on the paper machine. If you tried to join them each time, you would have to repeat the process of hammering in and pulling out nails multiple times, which was a hassle. Furthermore, in the latter method, since the fasteners themselves are flexible, even when the fasteners are combined, they tend to bend in a wavy manner, and the common holes through which the core wires are passed are not aligned in a straight line, making it impossible to contribute to reducing the work of inserting the core wires.

[Purpose of invention]

This invention was devised in view of the above points, and the purpose is to provide a band joining aid that can contribute to speeding up and simplifying the band joining work.

[Structure of the idea]

In order to achieve the above object, this invention includes a plate-like body having a folded hook portion on one edge, and a strip body having a connecting loop for connecting both ends in an endless manner. In the band joining aid, the folded surfaces of the hooks are at an acute angle with respect to the main part of the plate. It has a slanted surface and is constructed so that the hook pieces are inclined to close.

〔Example〕

This invention will be described below based on an embodiment shown in the accompanying drawings.

In FIG. 1, reference numeral 1 denotes a band such as felt for papermaking, and joining loops 2, 2' are formed at both end edges of the band 1. Reference numeral 3 designates a joining aid for overlapping the joining loops 2 and 2' and facilitating the insertion of the core wire 5 into the common hole 4 created thereby, as shown in the fourth figure.

The welding aid 3 is equipped with two plate-like bodies 7 each having a folded hook 6 on one edge. They are temporarily fixed 8 to the inner side of both ends of the band 1, respectively. This temporary fixing 8 is the meaning of "permanent fixing" since the plate-shaped body 7 is removed after both ends of the band 1 are joined. Therefore, it is preferable that it is firmly fixed in a state that facilitates subsequent removal. This temporary fixing means is not particularly limited, but machine sewing using a cement bag stitching machine is usually preferred. This means that when one end of the sewing thread is pulled, the sewn parts come undone one after another, making it easy to remove.However, unless one actively pulls one end of the thread, the plate-shaped body 7 is extremely firmly fixed. This is because it will be done.

The plate-shaped body 7 is selected from a material that is harder than the band 1 and that can be used with the cement bag sewing machine as described above. For example, resin molded products such as hard polyester resin are preferable.

Reference numeral 9 denotes a groove-shaped thin wall portion provided on the other edge side of the plate-like body 7, and the thin wall portion 9 serves as a guide for the presser foot of the sewing machine when temporary fixing is performed by sewing with a sewing machine as described above, and also facilitates insertion of the sewing machine needle. be effective. Further, by providing such a thin portion 9, other portions can be formed thicker.

Although the two plate-shaped bodies 7 do not necessarily have to have the same cross-sectional shape, they are made to have the same shape in the embodiment. Even if they have the same shape, if one is turned over at the time of temporary fixation so that the hooks 6 are oriented so that they can engage with each other, they can be used without any problems and the mold cost can be reduced.

As shown in the second figure, the folded surface 6a of the folded hook portion 6 is a slope with an included angle θ of about 40 degrees with respect to the main part of the plate, and the hook piece 6b is formed on the folded surface 6a. On the other hand, the included angle θ' is close to about 120 degrees. As shown in FIG. 3, the folded surfaces 6a of the hook portions 6 are configured to slide against each other in the direction of the arrow when they collide with the folded surfaces 6a of the mating hook portion 6, and the inclination of the hook pieces 6b is As shown by the arrows in the same figure, in order to improve the sliding property when the hook parts 6 move in the direction of engagement with each other, they are made so that they do not come into surface contact with the main part of the other plate (they hit at the ridge line l), and This made it difficult to leave.

Reference numeral 10 denotes a handle member which is temporarily fixed to the upper surface side of the band body 1 at the same time when the other edge side of the plate-like body 7 is sewn on the inner side of both ends of the band body 1, and the handle member 10
This is to make it easier to pull both ends of the band 1 in the direction of abutting each other. This handle member 10 is made of a durable material such as a piece of leather or felt having a finger hole 11.

Note that the plate-like body 7 may be temporarily fixed to the band 1 before it is delivered to the user such as a paper mill, or the plate-like body 7 may be attached to the band at the time of delivery and the plate-like body 7 may be attached to the band 1 before being delivered to the user such as a paper mill. Of course, it may be temporarily fixed.

In the case of joining a band having temporarily fixed plate-like bodies together in an endless form on a paper machine as in the above embodiment, when the operator holds the handle member 10 and pulls both ends of the band 1 toward each other, As shown in FIG. 3, the folded surfaces 6a of the hook portions 6 provided on one edge of the plate-shaped body 7 collide with each other, and when they are pulled further, the hook portions 6 slide together and become staggered as shown in the figure, and then, When the pulling force is released, the weight of the band 1 causes the hooks 6 of the plate-shaped body 7 to engage with each other as shown in the figure, and both ends of the band 1 are raised in the shape of palms together. You will now be able to match them. Therefore, the joining loops 2, 2' at both ends of the band overlap each other in a natural state,
Moreover, since the linearity is improved, the common holes 4 through which the core wires 5 are passed are neatly aligned, and this state is stably maintained. Therefore, the core wire 5 is then inserted into the aligned common holes 4, and after the insertion, the ends of the core wire are fixed by an appropriate method.

After that, by pulling one end of the sewing thread that temporarily fixed the plate-shaped body 7, the thread is easily removed, and the plate-shaped body 7 is removed from the band 1, and the band 1 is joined as shown in the fourth figure. Complete.

By the way, after setting the strip (for a paper machine with a machine width of 5 m) in which the plate-shaped body 7 is sewn in cement bags in advance on the paper machine worm roll as specified,
When two workers measured the time it took to join the strips and remove the plate, it was completed in about 20 minutes. On the other hand, after a strip under the same conditions with an open fastener temporarily fixed in advance was set on the worm roll of a paper machine as specified, the time it took for four workers to join it and remove the fastener was measured. However,
It took about an hour and a half. From this result, it was found that when using the joining aid of the present invention, both the number of workers and the working time can be significantly reduced.

[Effect of idea]

As described above, this invention is based on a plate-like body having a folded hook on one edge, and a band body having a connecting loop for connecting both ends in an endless manner. A band joining aid that is temporarily fixed in an engaging direction and facilitates overlapping both end loops of the band by engaging the hook portions,
Since the folded surface of the hook part is sloped at an acute angle with respect to the main part of the plate, and the hook piece is inclined to be slightly closed,
The hooks can be easily joined, making it possible to quickly butt the two ends of the band together in a palm-like manner, and also maintain good straightness of the common hole of the joint loop, making it easy to insert the core wire. Since the work can be carried out quickly, it has the excellent effect of greatly contributing to speeding up and simplifying the work of joining the strips and saving labor.

[Brief explanation of the drawing]

Figures 1 to 4 show an embodiment of this invention,
Figure 1 is a partially cutaway perspective view of the band with both ends facing each other, Figure 2 is a sectional view of the plate, Figure 3,
, is an explanatory diagram showing the order of engagement of the hook portions of the plate-shaped body, and FIG. 4 is a sectional view of the joint portion of the endlessly joined band body. 1...Band body, 2,2'...Joining loop, 3...
Joining aid of the present application, 6... Hook portion, 6a... Folded surface, 6b... Hook piece, 7... Plate-like body, 8... Temporary fixing, 9... Groove-shaped thin wall part, 10... Handle member .

Claims (1)

[Claims for Utility Model Registration] (1) A plate-shaped body having a folded hook portion on one edge is attached to the inside of both ends of a band body provided with a connecting loop for endlessly connecting both ends. In a band joining aid in which the parts are temporarily fixed in a direction that allows them to engage with each other, and the engagement of the hook parts makes it easy to overlap the loops at both ends of the band, the folded surface of the hook part is placed against the main part of the plate. A belt joining aid characterized by having an acute slope and having hooked pieces inclined to be slightly closed. (2) The band joining aid according to claim 1, wherein the plate-shaped body is a hard plastic molded product. (3) Utility model registration claim 1 or 2, in which the plate-like body has a groove-like thin wall portion on the other edge side.
Band joining aid as described in section. (4) The band joining aid according to claim 1 of claims 1 to 3, wherein the temporary fixing is performed by sewing and fixing using a cement bag sewing machine.