TWI421414B - Round gasket unit and installation method thereof - Google Patents

Description

Round gasket unit and installation method thereof

The present invention relates to a circular gasket unit for mounting a waterproof gasket on a wall surface or a ceiling surface in a wall project of a tunnel project or a cliff, and a mounting method thereof.

In the tunnel work and the like, in order to prevent dripping from the water leakage of the tunnel wall surface, a waterproof sheet may be laid on the wall surface. The waterproof sheet is fixed, and there is a bolt-on construction method in which a drill bit is drilled, an anchor bolt is inserted, and a waterproof sheet is fixed. However, in this construction method, the working procedure is time consuming, and therefore, the construction method for directly fixing the circular gasket unit from the waterproof sheet is gradually increased.

Specifically, as shown in Fig. 10, the circular spacer unit A' has a spacer 2 provided at the center thereof, and a fixing pin 6 having fins (soft material) 20 provided at the center of the spacer 2. When the waterproof sheet 17 is fixed to the ceiling surface by the circular gasket unit A', the circular gasket unit A' is held on the hand and abuts the portion which must be fixed, and the other hand is made above the circular gasket unit A'. The gunpowder or air-pressing nailer punches the air and hits the fixing pin 6 with its driver to drive into the wall.

Further, when the waterproof sheet 17 is fixed to the tunnel side wall surface, the spacer 2 is removed from the circular spacer unit A', and the fixing pin 6 is driven into the spacer 2.

However, in the state where the round gasket unit is held by hand, the operation of driving the fixing pin with the nailing machine requires very delicate attention and concentration, and the operation is complicated. Further, when the waterproof sheet is fixed to the side wall surface, the spacer is smaller than the circular spacer unit, so the work is complicated and there is a risk of hand injury. In particular, in order for the fixing pin to only enter the gasket, the hand will be very close to the nailing machine exit, which is very dangerous.

Here, a method in which the magnet is attached to the tip of the nailer and the gasket is sucked and held by the magnet is considered (for example, refer to U.S. Patent No. 5,484,094).

However, as described above, when the garden gasket unit is fixed to the tunnel wall surface, the fixed pin which is previously mounted as a part of the circular gasket unit is emptied by the nailing machine. A lot of waterproof sheets are to be laid in the tunnel project, so the round gasket unit will be used in large quantities. In the circular gasket unit, the circular gasket system is integrated with the gasket and the fixing pin. The circular gasket unit is taken out from a bag or a box in which a plurality of circular gasket units are housed, and the waterproof sheet is attached using both hands as described above. However, the work is very annoying and requires attention and concentration, so the fatigue is very high. Moreover, the fixing pin of the circular gasket unit interferes with the fixing pin of the other circular gasket unit, so the number of the circular gasket unit accommodated in the bag or the box is limited. Therefore, in order to fix most round gaskets, bags or boxes must be replaced frequently.

The fixing pin is such that its tip is mounted in a state of standing vertically on the waterproof sheet, and is driven by a nailing machine. Therefore, not only the fixing pin is slightly unstable, but also the angle between the fixing pin and the nail driving machine is easily deviated, so that it is easy to break in and the work efficiency is poor.

Also, when the circular spacer unit is accidentally dropped on the ground, the fixed pin toe may face upward, which is dangerous in a dark tunnel.

Further, when the waterproof sheet is fixed to the side wall surface of the tunnel, the spacer which is removed from the circular spacer unit is fixed to the waterproof sheet by the fixing pin, and therefore, the operation of removing the spacer from the circular spacer unit is complicated.

One or more embodiments of the present invention provide a circular gasket unit having excellent mounting workability and portability. Moreover, one or more embodiments of the present invention provide a method of mounting a circular gasket unit that is easy, efficient, and safe to operate.

When one or more embodiments of the present invention are used, the circular gasket unit is composed only of a circular gasket body having a concave portion at the center portion and a gasket housed in the concave portion of the circular gasket body. The depth of the recess is greater than the thickness of the spacer.

Further, when one or more embodiments of the present invention are used, the method of mounting the circular spacer unit includes: preparing a nailing machine loaded with a connecting pin formed by connecting a plurality of fixing pins, so as to be centered The circular gasket unit provided with the gasket is held at the tip end of the nailing machine, and the fixing pin is pushed out from the nailing machine to penetrate the center of the gasket and then enter the driving step of the driven material.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

In the first and second figures, the number A indicates a circular spacer unit. The circular gasket unit A includes a circular gasket body 1 and a gasket 2.

The circular gasket body 1 is formed in a 12-angle shape. The recessed part 3 accommodated in the spacer 2 is formed in the center part of the pad body 1. Further, a perforation 5 is formed in the center of the circular gasket body 1. The diameter of the perforation 5 is larger than the shaft portion of the fixing pin 6 for fixing the circular gasket unit A, and is smaller than the head of the fixing pin 6.

Moreover, in the actual construction site, the waterproof sheet may be fixed to the wall surface or the ceiling surface of the uneven surface. Therefore, in order to securely fix the waterproof sheet even to such an uneven surface, the circular spacer body 1 is preferably made of an elastic material (synthetic resin or rubber) or a soft metal member.

The spacer 2 is a metal magnetic body, and a through hole 4 which is larger than the shaft portion of the fixing pin 6 and smaller than the head portion is formed in the center of the spacer 2. Therefore, the resistance of the fixing pin 6 which is introduced from the nailing machine described later is small when the through hole 4 is penetrated, and the circular pad unit A itself is stable and does not vibrate or move.

The diameter of the recess 3 is slightly larger than the diameter of the spacer 2, and the depth of the recess 3 is larger than the thickness of the spacer 2. That is, the thickness of the spacer 2 allows the spacer 2 to be fitted into the recess 3, and the tip of the nailer described later is fitted into the remaining portion of the recess 3. The peripheral portion 8 of the pad body 1 has a function of pressing against the waterproof sheet, and the lower surface of the recess 3 is slightly lower than the lower surface of the peripheral portion 8. That is, the lower surface of the recessed portion 3 protrudes from the peripheral edge portion 8 toward the concave portion 3 in the concave direction. The reason is that when the lower surface of the peripheral portion 8 is lower than the lower surface of the concave portion 3, the concave portion 3 is pulled up by the elastic restoring force of the circular gasket body 1, and the fixation caused by the fixing pin 6 is deteriorated. Hey.

Further, the outer diameter of the circular gasket body 1 is preferably 1.5 to 3 times the outer diameter of the concave portion 3.

The gasket 2 is mounted so as not to be easily removed from the circular gasket body 1. In the present embodiment, as shown in Fig. 2, a plurality of locking pieces 7 are formed on the inner side surface of the recessed portion 3 of the circular spacer main body 1 in the circumferential direction. The spacer 2 is pressed into the recess 3 and is attached by being locked to the locking piece 7.

At the bottom of the recess 3 of the circular spacer body 1, a through hole 10 for removing the spacer is formed at an eccentric position. When the spacer 2 is removed from the circular spacer main body 1, a tool such as a screwdriver is inserted from below the through hole 10, and the spacer 2 is pushed upward to release the locking of the locking piece 7.

The form in which the spacer 2 is attached to the circular spacer body 1 is not limited to the above embodiment. For example, as shown in FIG. 3, the spacer 2 can also be mounted by a double-sided tape or an adhesive 11. Further, as shown in FIGS. 4A and 4B, a slit 12 which is slightly narrower than the outer diameter of the recessed portion 3 may be formed in the side wall of the recessed portion 3 of the circular spacer main body 1, and the spacer 2 may be slid from the slit 12 and attached thereto. Inside the recess 3. The size of the slit 12 is such that the gasket 2 is slightly tight when it is caught. Further, an escape preventing portion 13 for preventing the spacer 2 from coming upward may be formed on the inner surface of the recessed portion 3. When the spacer 2 is removed, it is only necessary to remove the spacer 2 from the slit 12. Further, the spacer 2 may be pressed only into the recess 3 of the circular spacer body 1.

Next, a method of mounting the circular spacer unit A will be described with reference to FIGS. 5 to 7. The nailing machine B includes a pin-injecting nose portion 14 and a contact member slidable along the pin-injecting nose portion 14. A contact top 15 is mounted at the tip end of the contact member. A magnet 16 is mounted at the tip end of the contact top 15. Further, in the nailing machine B, the fixing pins 6 that are driven into the circular gasket unit A are loaded in the connected state, and the fixing pins 6 from the leading end are sequentially pushed out. Further, the round pad unit A is held by hand, and the tip end of the contact top portion 15 is pressed into the recessed portion 3 of the circular pad body 1, or the circular pad unit A is placed on an appropriate pedestal or the like in advance so that the contact top portion 15 is self-contacted. The upper portion is pressed into the recess 3. As a result, as shown in Fig. 6, the tip end of the contact top portion 15 is inserted into the recess 3 of the circular spacer body 1. By the magnet 16 abutting against the spacer 2, the spacer 2 is sucked by the magnet 16 and held at the tip end of the nailer B. At this time, the perforation 5 of the circular gasket body 1 and the perforation 4 of the spacer 2 are positioned to be integrated with the injection pin 9 of the fixing pin 6 formed on the nose portion 14 of the nailing machine B.

Next, as shown in Fig. 7, the circular gasket unit A attached to the tip end of the nailing machine B is pressed against the tunnel ceiling surface 18 (fixing target material) by the waterproof sheet 17, whereby When the nailing machine is actuated, the fixing pin 6 struck by the driver 25 is inserted through the perforation 4 of the spacer 2 from the ejection opening, and is driven into the ceiling surface 18 by the waterproof sheet 17. Thereby, the circular gasket unit A can be fixed to the waterproof sheet 17. Thereafter, similarly, the circular pad unit A may be fixed.

Further, when the waterproof sheet 17 is fixed to the tunnel side wall surface 19, the waterproof sheet 17 may not be fixed by the circular gasket unit A, and the waterproof sheet 17 (not shown) may be fixed by the spacer 2. In this case, as described above, the gasket 2 is removed from the circular gasket unit A, and the gasket 2 is sucked on the magnet 16 of the nailing machine B contacting the top portion 15, and the fixing pin 6 is driven to fix the gasket. 2 and the waterproof sheet 17 can be used.

As described above, the circular gasket unit A is composed only of the circular gasket body 1 and the gasket 2, and does not include the fixing pin 6. Therefore, the circular pad units A have little interference with each other, and the majority of the circular pad units A can be carried, and continuous operation can be performed, which can improve workability.

Further, when the circular spacer unit A is dropped, since it does not have the fixing pin 6, it is not dangerous, and at the same time, the circular spacer unit A can be attached and fixed to the tip end of the nailing machine B by the magnet 16. Therefore, the work efficiency can be improved, and there is no need to work on the other hand, so that the work safety can be improved.

Further, the circular spacer unit A is an object that is fixed by being inserted into the fixing pin 6 loaded in the nailing machine B, so that the fixing pin is not required to stand beforehand as a part of the circular gasket unit. Moreover, the tip end of the nailing machine B is correctly positioned in the recess of the circular spacer body 1. Therefore, it is not necessary to consider the angle between the fixing pin 6 and the nailing machine B, so that the circular gasket unit mounting work can be carried out efficiently, safely and easily.

Further, unlike the magnet 2 of the previous spacer 2, the nose portion 14 of the nailer B is directed toward the recess 3 of the wafer body 1 and gently pressed against it, so that the center position of the spacer 2 can be aligned. It is to the driving position of the fixing pin 6, and therefore, the center of the spacer 2 is not displaced.

Further, by holding the circular spacer unit at the tip end of the nailing machine B, the waterproof sheet 17 is fixed by a fixing pin that is pushed out from the general-purpose power nailing machine, so that work safety can be improved, and at the same time, the circular gasket It will not fall in the homework. Therefore, the work becomes easy, and even a novice can work efficiently.

Moreover, since the fixing pin 6 is not attached to the circular pad unit A in advance, the plurality of circular pad units A can be collectively overlapped. Therefore, it is easy to carry during work, and sales can be implemented more efficiently.

Further, since the spacer 2 is detachably attached to the wafer main body 1, the spacer 2 can be removed from the circular spacer unit A, and only the spacer 2 can be attracted to the nailer B by the magnet 16. Therefore, in this case, it is possible to improve the safety of work on a more dangerous side wall surface without having to work with another hand. Moreover, since it is not necessary to be skilled, novices can work efficiently.

Next, Fig. 8 shows still another embodiment in which the wafer unit A is attached to the nailer B. An annular recess 21 is formed on the inner surface of the recess 3 of the circular spacer unit A. An annular convex portion 22 that is engaged with the annular concave portion 21 is formed on the outer surface of the tip end of the nailing machine B contact top portion 15. Further, when the contact top portion 15 is pressed into the recessed portion 3 of the circular spacer body 1, the annular convex portion 22 is fitted into the annular concave portion 21.

That is, when the contact top portion 15 of the tip end of the nailing machine B is pressed into the recess 3 of the circular spacer body 1, the circular spacer unit A is held at the contact top portion 15. Therefore, the circular gasket unit A can be easily attached to the nailer B.

Further, when the annular recessed portion 21 and the annular convex portion 22 are fitted to each other, the circular gasket unit A is held without falling off from the contact top portion 15, and preferably, after the fixing pin 6 is driven, the nailing machine is driven. B can be detached only when pulled out from the circular pad unit A. Further, it is preferable that the spacer 2 is then fixed to the bottom surface of the recess 3.

When the above configuration is used, it is not necessary to mount the magnet 16 on the lower surface of the contact top portion 15.

Further, contrary to the above configuration, the annular convex portion may be formed in the concave portion of the circular gasket body, and the annular concave portion may be formed at the contact top portion. Further, the concave portion or the convex portion may be annular only on either side.

Next, Fig. 9 shows still another embodiment in which the circular pad unit A is attached to the nailer B. At the tip end of the contact top portion 15, a lid body 23 for taking the upper portion and the side portion of the circular gasket unit A into the inner side is formed. The inner side of the lower end of the lid body 23 is formed with a locking portion 24 that locks all or part of the peripheral edge portion 8 of the circular gasket body 1.

When the above configuration is used, the contact top portion 15 is pressed against the circular gasket unit A, and the locking portion 24 is deformed to be locked to the peripheral portion 8 of the circular gasket main body 1. Thereby, the circular gasket unit A can be attached to the tip end of the nailing machine B. In this case, the circular pad unit A can be mechanically held at the tip end of the nailing machine B, so that it is not necessary to mount the magnet at the tip end of the contact top portion 15.

When the circular gasket unit A is fixed to the mounting surface, the fixing pin 6 and the circular gasket unit A are detached from the lid body 23 and pressed against the mounting surface and fixed.

Further, in the above embodiment, although any of the circular spacer bodies 1 is formed in a 12-angle shape, the outer shape of the circular gasket unit A may be circular or may be other polygonal shapes. Further, the material of the fixing pin may be stainless steel or hard plastic in addition to the iron-based metal, and any material that can function as a fixing pin can be used.

Further, since the fixing pin 6 is driven by the power nailer B, the circular pad main body 1 or the spacer 2 may not be formed with perforations.

Further, in the above embodiment, the circular spacer unit A is attached to the contact top portion 15 which is coupled to the contact member (contact arm) of the general-purpose power nailer B. The contact member is slidably supported along the nose portion 14 of the power nailer B. However, instead of the contact member, the round gasket unit may be attached to the contact nose that is mounted to form a part of the nose. on.

The present invention has been described with reference to the detailed and specific embodiments of the invention.

This application is based on a Japanese patent application filed on March 14, 2006 (Japanese Patent Application No. 2006-069678), the entire contents of which are hereby incorporated by reference.

[Industrial Availability]

It is possible to provide a circular gasket unit with excellent installation workability and portability, and at the same time, it is possible to provide a circular gasket unit mounting method which can be easily and efficiently operated safely.

A. . . Round gasket unit

1. . . Round gasket body

6. . . Fixed pin

14. . . Nose

15. . . Contact top

Fig. 1 is a longitudinal sectional view showing a circular gasket unit of an embodiment of the present invention.

Fig. 2 is an exploded perspective view showing the circular spacer unit shown in Fig. 1 partially broken away and the fixing pin.

Figure 3 is a longitudinal sectional view of another embodiment of the circular spacer unit.

Fig. 4A is a longitudinal sectional view showing a state in which a spacer is slidably mounted on a circular spacer body in a circular spacer unit according to still another embodiment.

Figure 4B is a cross-sectional view taken on line X-X of Figure 4A.

Figure 5 is a cross-sectional view of important parts of the circular gasket unit and the nailing machine.

Fig. 6 is a cross-sectional view showing a state in which the circular pad unit is held in contact with the top portion.

Figure 7 is a cross-sectional view showing the mounting aspect of the circular spacer unit.

Fig. 8A is a cross-sectional view showing the nailing unit attached to another embodiment of the nailing machine.

Fig. 8B is an enlarged view of the range P in Fig. 8A.

Figure 9 is a cross-sectional view showing another embodiment of the nailing machine for mounting the circular spacer unit on the top of the contact.

Figure 10 is a cross-sectional view showing a prior circular gasket unit and its mounting method.

1. . . Round gasket body

2. . . Gasket

3. . . Concave

4. . . perforation

5. . . perforation

6. . . Fixed pin

7. . . Card stop

8. . . Peripheral part

10. . . perforation

Claims (9)

A circular gasket unit is composed only of a circular gasket body having a concave portion at a central portion and a gasket housed in the concave portion of the circular gasket body; the depth of the concave portion is larger than a thickness of the gasket; Wherein, a perforation is formed at an eccentric position of the bottom of the recess. The circular gasket unit according to claim 1, wherein the gasket is formed with a perforation at the center thereof. The circular gasket unit according to claim 1, wherein the lower surface of the concave portion protrudes from a peripheral edge portion of the circular gasket body toward a concave direction of the concave portion. The circular gasket unit according to the first aspect of the invention, wherein the inner side surface of the concave portion is formed with a locking piece along a circumferential direction; and the gasket is locked to the locking piece. The circular gasket unit according to claim 1, wherein the gasket is attached to the concave portion by an adhesive. The circular gasket unit according to claim 1, wherein the recessed side wall is formed with a slit; and the gasket is taken out from the slit. A method for installing a circular gasket unit, comprising: preparing a nailing machine loaded with a connecting pin formed by connecting a plurality of fixing pins, so that a circular gasket unit having a gasket at a central portion is held at a tip end of the nailing machine, wherein a central portion of the circular spacer unit has a concave portion, and a perforation is formed at an eccentric position of the bottom portion of the concave portion. The driving pin is pushed out from the nail driving machine to penetrate the center of the gasket and then enter the driving step of the driven material. The method of installing a circular gasket unit according to claim 7, wherein the step of holding the magnet at the tip of the nailer has the step of holding the gasket unit so that the gasket is immersed in The step on the aforementioned magnet. The method of mounting a circular gasket unit according to claim 7, wherein the step of holding the circular gasket unit has a step of locking a peripheral portion of the circular gasket unit to a tip end of the nailing machine.