JP5060366B2 - Mounting jig for fireproof attachment - Google Patents

Description

  TECHNICAL FIELD The present invention relates to a mounting jig for a fireproof attachment of a resin pipe attached to a drain pipe or a joint penetrating a fireproof section such as a floor or a wall of a building such as a medium- to high-rise apartment, and more specifically, to penetrate a fireproof section of each floor. The present invention relates to a jig for attaching a fireproof attachment to a resin pipe, which is attached to a drain pipe or a joint and prevents the spread of fire to another fire prevention section that is connected to the pipe of the drain pipe or the joint.

  As a drainage pipe connected to a drainage pipe or a joint penetrating a fireproof section such as a floor or wall of a building such as a mid-to-high-rise apartment building, the present inventor, such as a heavy metal pipe or a fireproof double-layer pipe that is poorly handled A fireproof attachment that can reliably prevent the spread of fire to other fireproof compartments through drainage pipes or joint pipes in the event of a fire, even when resin pipes that are lightweight and have good handling properties are used instead of piping members Has proposed. This fireproof attachment comprises an annular mounting portion attached to the lower end portion of the drain pipe or joint, and a plurality of triangular plate springs fixed on the non-mounting surface side of the mounting portion around the ring. The peripheral ends of the resin drainage pipes connected to the drainage pipe or the joint are biased so that the tips of the plurality of leaf springs are in abutting state on the non-attachment surface side of the attachment part. The thing which consists of a holding member which presses and hold | maintains is proposed (refer patent document 2).

Japanese Patent Application No. 2007-070511

  However, when this fireproof attachment is attached to the resin tube, the tip of the leaf spring is biased to the butted state due to the structure of the fireproof attachment, and therefore cannot be attached from the tip side of the leaf spring. Therefore, as shown in FIG. 18, it is necessary to mount the fireproof attachment from the attachment portion side and move the resin tube on the resin tube to the vicinity of the opposite end by the length of the resin tube. This was a very time-consuming work because the fireproof attachment had to be slid nearly a few meters and a large force was required for movement.

  In addition, when the resin tube is first inserted into the fireproof attachment, the leaf spring must be expanded by pushing the resin tube. However, a considerable force is required to suddenly expand the leaf spring to the diameter of the resin tube, which is a very difficult task.

  The present invention has been devised in view of the above problems, and can be directly attached to the resin pipe from the distal end side of the leaf spring of the fireproof attachment, and the fireproof attachment on the resin pipe is almost slid. An object of the present invention is to provide an attachment jig for a fireproof attachment that can be attached without any problem.

  It is another object of the present invention to provide a mounting jig for a fireproof attachment that can easily expand a leaf spring to a pipe diameter.

  In order to solve the problems as described above, the measures taken by the present invention are as follows.

  The attachment jig for a fireproof attachment taken by the invention according to claim 1 is an attachment portion attached to a lower end portion of a drain pipe or a joint, and an end portion of a resin pipe provided in the attachment portion and connected to the drain pipe or the joint And a spring member made of a metal material that presses the peripheral surface with a spring force, and a jig for attaching the fireproof attachment to the resin tube, and having an inner diameter capable of fitting the resin tube inside And an outer diameter that is formed so as to extend from the outer cylindrical portion at one end of the outer cylindrical portion, and at least the cylindrical portion arranged inside the outer cylindrical portion fits into the inner diameter of the resin tube. The gist of the invention is that it has an inner cylindrical portion.

  The gist of the jig for attaching a fireproof attachment taken by the invention according to claim 2 is that a slide portion for pressing the fireproof attachment is provided on a side surface of the outer cylindrical portion.

  In addition, the attachment jig for the fireproof attachment taken by the invention according to claim 3 is characterized in that the inner cylindrical portion is provided with a taper so that the tip is thinned.

  Further, the gist of the attachment jig for the fireproof attachment adopted by the invention according to claim 4 is that it includes a handle member for facilitating the fitting and removal from the resin tube.

  The effects obtained by adopting the above means are as follows.

  The attachment jig of the fireproof attachment according to the present invention is smaller than the case where the inner cylinder portion is formed to be thinner than the outer diameter of the resin tube when the leaf spring is fitted from the attachment portion side. It has the effect that it can be fitted with force. Further, if the inner cylindrical portion is formed with a taper so that the tip of the inner cylindrical portion is thin, the leaf spring can be expanded with a smaller force.

In addition, the attachment jig for the fireproof attachment according to the present invention is fitted into the resin tube from the front end side of the plate spring because the plate spring of the fireproof attachment is greatly expanded when the fireproof attachment is inserted into the outer cylindrical portion. be able to.

  The best mode for carrying out the “fire jig attachment jig” of the present invention will be described.

  First, the fireproof attachment 50 used in the mounting jig 100 of the present invention will be described with reference to the drawings. As shown in FIGS. 3 and 4, the fireproof attachment 50 includes an attachment portion 52 and a plurality of leaf springs 51. The attachment portion 52 is a thin plate obtained by punching a plate material, and the attachment portion 52 is attached to the lower end portion of the drain pipe or the joint 70 by the connection band 71 at the lower end portion of the drain pipe or the joint 70. (See FIG. 9). The attachment portion 52 may be circular, elliptical, or polygonal.

  The leaf spring 51 constituting the spring member is fixed to the mounting portion 52 in an annular shape. Each leaf spring 51 has a substantially triangular shape, and its base end is fixed to the mounting portion 52 by welding. And the front-end | tip of these several leaf | plate springs 51 or the side of the leaf | plate spring 51 is urged | biased so that it may face | abut on the opposite side to the attachment surface of the said attachment part 52, and has comprised the substantially cone shape.

  Such a fireproof attachment 50 acts as follows when a fire occurs. The resin pipe 60 made of resin is melted or carbonized by heat at the time of fire. Along with this, the plurality of leaf springs 51 that have pressed the peripheral surface of the resin tube 60 are deformed inward by the spring force due to melting or carbonization of the resin tube 60, and their tips are in a butted state. The resin tube 60 is put into a butted state while embedding the leftovers, and the opening at the lower end of the joint 70 is closed. As a result, it is possible to prevent the spread of the fire outside the fire prevention section.

  In addition, the number and shape of the leaf springs 51 in the fireproof attachment 50 used in the present invention are arbitrary, and the type of the resin tube can be appropriately changed according to the thickness.

  Now, a mounting jig for a fireproof attachment according to the present invention will be described. The attachment jig of the present invention is a jig for attaching the above-mentioned fireproof attachment to a resin pipe.

  The mounting jig according to the present invention includes an outer cylindrical portion arranged on the outer side and an inner cylindrical portion arranged on the inner side. The outer cylinder portion is formed into a cylindrical body having an inner diameter substantially the same as the outer diameter of the resin tube so that the outer tube portion can be fitted from the outside of the resin tube to which the fireproof attachment is to be attached. This outer cylinder part is for temporarily holding the fireproof attachment before fitting the fireproof attachment to the resin pipe. That is, by fitting the fireproof attachment to the outer cylinder part, the tip of the spring plate is slightly expanded from the outer diameter of the resin tube (by the thickness of the plate material of the outer cylinder part). For this reason, the spring plate is attached by being slid from the distal end side (non-attachment surface side) to the resin tube. Therefore, it is preferable that the length of the cylindrical body is longer than the length of the leaf spring of the fireproof attachment.

  The inner cylinder part is disposed so as to be substantially concentric inside the outer cylinder part. The inner cylinder part is formed longer than the outer cylinder part, and is provided to extend from the outer cylinder part on one end side of the outer cylinder part. One of the effects of the inner cylinder portion formed in this way is that the inner tube portion is inserted into the resin tube so that the positions of the resin tube and the mounting jig are concentrically arranged. Therefore, the position of the jig is regulated so that the positional relationship between the resin tube and the outer cylinder portion is an appropriate position. As a result of further pressing, the outer cylindrical portion just fits into the outer periphery of the resin tube, and the outer cylindrical portion can be easily fitted into the resin tube. Therefore, in order to facilitate the insertion into the resin tube and to fix the position of the jig, the inner cylinder part is preferably provided with a diameter substantially the same as or slightly smaller than the inner diameter of the resin tube so as to be fitted without a gap. Moreover, it does not necessarily need to be a cylindrical shape, and for example, a taper may be provided so that the tip is thin. By adopting such a configuration, it is possible to easily insert the inner cylindrical portion into the resin tube, and as the insertion is performed, the position of the jig is guided to an appropriate position with respect to the resin tube. Therefore, the outer cylinder portion can be easily fitted into the resin tube.

  Another effect is that when the leaf spring of the fireproof attachment is expanded, suddenly pushing it directly into a member having a relatively large outer diameter, such as the outer cylinder, requires a very large force to expand the leaf spring. Become. In view of this, the function of making it easier to spread the leaf spring by using a relatively thin inner cylinder portion is provided. Therefore, from the viewpoint of this action, it is effective to provide a taper so that the tip of the inner cylinder portion becomes thin.

  The mounting jig may be provided with a slide member for moving the fireproof attachment to the resin tube after being fitted into the outer cylinder portion. The structure of the slide member is not particularly limited as long as the slide member has a mechanism capable of pushing and moving the attachment portion of the fireproof attachment fitted into the outer cylinder portion. For example, as will be described in detail below, a U-shaped slide member 40 as shown in FIGS. 10 and 11 is conceivable.

  Hereinafter, Example 1 of the attachment jig 100 for a fireproof attachment according to the present invention will be described with reference to the drawings. In addition, the Example and drawing demonstrated below illustrate the optimal form of the Example of this invention, and is not used for the objective limited to these structures.

  1 and 2 are perspective views of a mounting jig 100 for a fireproof attachment according to the first embodiment. The fireproof attachment mounting jig 100 according to the first embodiment is specifically a type in which the fireproof attachment 50 is attached to a resin tube 60 made of vinyl chloride having an outer diameter of 89 mm, an inner diameter of 79 mm, and a thickness of 5.0 mm. Explained.

  The attachment jig 100 for a fireproof attachment according to the first embodiment includes an outer cylindrical portion 10 and an inner cylindrical portion 20 that are disposed on the outer side. The outer cylinder portion 10 is formed in a cylindrical shape having an inner diameter of approximately 89 mm using a metal plate having a thickness of 1 mm. The inner cylinder part 20 is formed in a cylindrical shape having an inner diameter slightly shorter than the inner diameter 79 mm of the resin tube 60, and is fixed using the handle member 12 so as to be concentric with the outer cylinder part 10. Further, the inner cylinder portion 20 is formed to be longer than the outer cylinder portion 10 and is provided so as to extend from one end portion of the outer cylinder portion 10.

  The firefighting attachment mounting jig 100 manufactured as described above is used as follows. First, as shown in FIG. 3, the inner cylindrical portion 20 of the jig 100 is inserted into the rear end side of the fireproof attachment 50 described above (arrow in FIG. 3). Then, the leaf spring 51 of the fireproof attachment 50 is gradually fitted into the attachment jig 100 while opening gradually. At this time, the leaf spring 51 is first spread and widened by the tip of the relatively thin inner cylinder portion 20 and then spread by the relatively thick outer cylinder portion 10, so that it can be easily inserted with a relatively weak force. it can.

  And the leaf | plate spring 51 will be in the state fully expanded, and the fireproof attachment 50 will be fitted by the outer side cylinder part 10 (refer FIG. 4). The attachment jig 100 to which the fireproof attachment 50 is attached in this manner inserts the inner cylindrical portion 20 into the resin tube 60 (FIG. 5). At this time, if the handle member 12 is held, it can be easily inserted. Next, as shown in FIG. 6, the resin pipe 60 is inserted between the inner cylinder part 20 and the outer cylinder part 10. At this time, as described above, since the position of the resin tube 60 is fixed by the inner cylinder portion 20, if the resin tube 60 is pushed in as it is, the resin tube 60 is naturally inserted into the outer cylinder portion 10. Become.

  After the resin tube 60 is thus inserted into the mounting jig 100, as shown in FIG. 7, the mounting portion is pushed in the direction indicated by the arrow, and the fireproof attachment 50 is slid and moved onto the resin tube 60. Then, after confirming that the fireproof attachment 50 is attached to the resin tube, the gripping member 12 is held and the mounting jig is removed to complete (FIG. 8).

  The resin pipe 60 to which the fireproof attachment 50 is thus attached is used by being attached to a lower end portion of a drain pipe or joint 70 that penetrates the fireproof section of each floor of the building by a connection band 71 (see FIG. 9).

  Hereinafter, Example 2 of the attachment jig 100 for a fireproof attachment according to the present invention will be described with reference to the drawings. 10 and 11 are perspective views of the attachment jig 100 for the fireproof attachment according to the second embodiment. About the structure of the inner side cylinder part 20 and the outer side cylinder part 10, since it is the same as that of an Example, it abbreviate | omits. The second embodiment is different from the first embodiment in that a slide member 40 is provided on the outer cylindrical portion 10. This slide member 40 is for making it easy to slide the fireproof attachment 50 onto the resin tube 60 from the state where the fireproof attachment 50 is attached. The slide member 40 is formed by bending a metal plate material into a U-shape, and provided with pressing portions 42 that press the fireproof attachment 50 at both ends thereof. On both sides of the U-shape, long and narrow grooves 41 are cut along the plate material. On the other hand, locking bars 11 are formed on both sides of the rear side surface of the outer cylindrical portion 10 so as to protrude. The locking bar 11 is inserted into the long and narrow groove, and the slide member can be slid along the locking bar.

  The fireproof attachment mounting jig 100 manufactured as described above first inserts the inner cylindrical portion 20 of the jig 100 into the mounting surface side of the fireproof attachment 50 described above, as shown in FIG. And let the leaf | plate spring 51 be in the state fully expanded (refer FIG. 13). As shown in FIG. 14, the attachment jig 100 to which the fireproof attachment 50 is attached is inserted and inserted into the inner side of the resin tube 60 as shown in FIG. 14. Then, as shown in FIG. 15, the resin tube 60 is inserted between the inner cylinder portion 20 and the outer cylinder portion 10.

  After the resin tube 60 is thus inserted into the attachment jig, as shown in FIG. 16, the slide member 40 is pushed in the direction indicated by the arrow, and the fireproof attachment 50 is slid and moved onto the resin tube 60. Then, after confirming that the fireproof attachment 50 is mounted on the resin pipe, the mounting jig is removed, and the process is completed.

  Hereinafter, Example 2 of the attachment jig for a fireproof attachment according to the present invention will be described with reference to the drawings. FIG. 17 is a perspective view of the attachment jig 100 for the fireproof attachment according to the third embodiment. The attachment jig 100 for the fireproof attachment according to the third embodiment is formed by providing a taper so that the tip of the inner cylinder portion 20 protruding outward from the outer cylinder portion 10 is thin. The other points are the same as in the first embodiment. By adopting such a configuration, it becomes easy to insert the inner cylindrical portion 20 into the resin tube 60. Further, as the insertion is performed, the position of the resin tube 60 is regulated by the tapered portion, and when the outer tube portion 10 is reached, the resin tube 60 is almost regulated to be positioned at the outer tube portion 10. The resin tube 60 is naturally inserted into the outer cylindrical portion 10. Since the process of attaching a fireproof attachment to the resin pipe other than this is the same as that of Example 1, it abbreviate | omits.

  The fireproof attachment according to the present invention has industrial applicability when a drainage pipe penetrating the fireproofing section or a drainage vertical pipe connected to a joint is provided.

It is a perspective view of the attachment jig of the fireproof attachment which concerns on Example 1. FIG. It is the perspective view seen from the other direction of the attachment jig of the fireproof attachment which concerns on Example 1. FIG. It is a figure which shows 1 process of the process of attaching a fireproof attachment to a resin pipe using the attachment jig of the fireproof attachment which concerns on Example 1. FIG. It is a figure which shows 1 process of the process of attaching a fireproof attachment to a resin pipe using the attachment jig of the fireproof attachment which concerns on Example 1. FIG. It is a figure which shows 1 process of the process of attaching a fireproof attachment to a resin pipe using the attachment jig of the fireproof attachment which concerns on Example 1. FIG. It is a figure which shows 1 process of the process of attaching a fireproof attachment to a resin pipe using the attachment jig of the fireproof attachment which concerns on Example 1. FIG. It is a figure which shows 1 process of the process of attaching a fireproof attachment to a resin pipe using the attachment jig of the fireproof attachment which concerns on Example 1. FIG. It is a figure which shows 1 process of the process of attaching a fireproof attachment to a resin pipe using the attachment jig of the fireproof attachment which concerns on Example 1. FIG. It is a figure which shows the process of attaching the resin pipe | tube with which the fireproof attachment was attached using the attachment jig of the fireproof attachment which concerns on Example 1. FIG. It is a perspective view of the attachment jig of the fireproof attachment which concerns on Example 2. FIG. It is the perspective view seen from the other direction of the attachment jig of the fireproof attachment which concerns on Example 2. FIG. It is a figure which shows 1 process of the process of attaching a fire prevention attachment to a resin pipe using the attachment jig of the fire prevention attachment which concerns on Example 2. FIG. It is a figure which shows 1 process of the process of attaching a fire prevention attachment to a resin pipe using the attachment jig of the fire prevention attachment which concerns on Example 2. FIG. It is a figure which shows 1 process of the process of attaching a fire prevention attachment to a resin pipe using the attachment jig of the fire prevention attachment which concerns on Example 2. FIG. It is a figure which shows 1 process of the process of attaching a fire prevention attachment to a resin pipe using the attachment jig of the fire prevention attachment which concerns on Example 2. FIG. It is a figure which shows 1 process of the process of attaching a fire prevention attachment to a resin pipe using the attachment jig of the fire prevention attachment which concerns on Example 2. FIG. It is a perspective view of the attachment jig of the fireproof attachment which concerns on Example 3. FIG. It is a figure which shows the conventional process of attaching a fireproof attachment to a resin pipe.

Explanation of symbols

DESCRIPTION OF SYMBOLS 100 Fire prevention attachment mounting jig 10 Outer cylinder part 20 Inner cylinder part 40 Slide member 50 Fire prevention attachment 60 Resin pipe

Claims (4)

A mounting part attached to the lower end of the drain pipe or the joint, and a spring member made of a metal material that presses the peripheral surface of the end of the resin pipe provided in the mounting part and connected to the drain pipe or the joint; A jig for attaching a fireproof attachment with a resin pipe,
An outer cylindrical portion having an inner diameter capable of fitting a resin tube inside;
The outer cylindrical portion is formed long at one end so as to extend from the outer cylindrical portion, and at least the cylindrical portion disposed inside the outer cylindrical portion has an outer diameter that fits into the inner diameter of the resin tube. An inner cylinder part,
A mounting jig for fireproof attachment. The jig for mounting a fireproof attachment according to claim 1, further comprising a slide portion that presses the fireproof attachment on a side surface of the outer cylindrical portion. The jig for attaching a fireproof attachment according to claim 1 or 2, wherein the inner cylinder part is provided with a taper so that a tip thereof is narrowed. The attachment jig according to any one of claims 1 to 3, further comprising a handle member for facilitating insertion and removal from the resin tube.

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