JP2008030068A - Caulking tool for panel fastener and method for fixing plate body - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a caulking tool and a caulking method with which a panel fastener can comparatively easily be caulked in a fitting hole of a plate body. <P>SOLUTION: The caulking tool 20 has a main body part 20a formed to a polygonal column-shape so that a rotary tool 21 is fitted to perform a rotative operation, and the caulking tool is formed such that a female screw 20a which can be screwed to the shaft part 11b of a screw main body 11 of a panel fastener 10 is bored from one end to the inner part of the main body part 20a, and the diameter of the main body part 20a is reduced toward the opening hole part of the female screw 20b, and a tip end part 20c with the diameter reduced is fitted into the thin thickness part 13b of a tubular member 13 of the panel fastener 10. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a jig for fixing a panel fastener to a mounting hole of a plate body, and a method of fixing the panel fastener to a mounting hole of the plate body.

2. Description of the Related Art Conventionally, there has been known a panel fastener in which a countersink is formed in a plate body and a predetermined portion is caulked and temporarily fixed to the countersink.
The panel fastener 10 includes, for example, a screw body 11, a casing 12, a tubular member 13, and a spring 14 as shown in FIGS. In the screw body 11, a screw thread 11c is carved on a shaft part 11b extending from the head part 11a. The casing 12 has a rear end 12a fixed to the head 11a of the screw body 11, covers the outer periphery of the shaft portion 11b partway, and has a locking portion 12b at the tip. The tubular member 13 is mounted around the shaft portion 11b of the screw body 11 so as to be able to enter and leave the casing 12, and has a flange portion 13a that engages with the locking portion 12b of the casing 12 at the rear end, and the other at the tip. A thin wall portion 13b having a thickness thinner than that of the portion is provided, an enlarged inner diameter portion 13c for accommodating the spring 14 is formed on the inner peripheral surface, and the screw body provided by the spring 14 provided in the casing 12 11 is biased toward the tip.

The panel fastener 10 is temporarily fixed to the plate 16 using a conventional caulking jig 15 shown in FIG.
Here, the caulking jig 15 has a main body portion 15a formed in a cylindrical shape, and a hole 15b having a smooth circumferential surface is formed from one end portion of the main body portion 15a to the inside thereof. The diameter of the main body 15a is reduced toward the opening, and the reduced diameter tip 15c is formed so as to fit into the thin portion 13b of the tubular member 13 of the panel fastener 10, and the other end of the main body 15a. 15d is formed flat.
When the panel fastener 10 is temporarily fixed to the plate body 16, the thin wall portion 13 b of the tubular member 13 of the panel fastener 10 is inserted into the attachment hole 17 from one side surface 16 a of the plate body 16, and the other side of the plate body 15. The diameter-reduced tip 15c of the caulking jig 15 is inserted into the thin portion 13b from the side surface 16b through the attachment hole 17. When the panel fastener 10 is fixed so as not to move and the end 15d of the caulking jig 15 is hit with a hammer or the like, the reduced diameter tip 15c of the caulking jig 15 enlarges and deforms the thin portion 13b of the panel fastener 10. The thin-walled portion 13b is caulked to the countersink hole side of the mounting hole 17.

Since the panel fastener 10 is crimped to the plate body 16 in advance, there is no inconvenience that the panel fastener 10 is slipped off from the hand when a component such as a housing is screwed to the plate body 16 and the workability of assembling the components is eliminated. Can be increased.
However, when the panel fastener 10 is caulked, the panel fastener 10 must be pressed so as not to move from the mounting hole 17 of the plate body 16 and then pressure must be applied by the caulking jig 15. Is inconvenient.

  Accordingly, an object of the present invention is to provide a caulking jig and a caulking method capable of caulking a panel fastener to a mounting hole of a plate body relatively easily.

Hereinafter, means for solving the problems will be described with reference numerals in the attached drawings.
In the present invention, a screw body 11 in which a thread 11c is engraved on a shaft portion 11b extending from the head portion 11a, a casing 12 fixed to the head portion 11a of the screw body 11 and covering the outer periphery of the shaft portion 11b halfway, and a casing 12 is attached to the shaft portion 11b of the screw body 11 so as to be able to enter and exit, the rear end 13a engages with the front end 12b of the casing 12, and a thin-walled portion 13b whose thickness is thinner than other portions is formed at the front end. A jig for fixing the panel fastener 10 provided with the tubular member 13 provided in the casing 12 and biased in the distal direction of the screw body 11 by the spring 14 provided in the mounting hole 17 of the plate body 16. The jig has a main body portion 20a formed in a polygonal column shape that can be rotated by fitting the rotary tool 21, and is screwed to the shaft portion 11b of the screw main body 11 of the panel fastener 10. The A female screw 20b that can be drilled inwardly from one end of the main body portion 20a, the main body portion 20a is reduced in diameter toward the opening of the female screw 20b, and the reduced diameter tip 20c is a tubular member of the panel fastener 10. A caulking jig 20 for the panel fastener 10 that is formed so as to fit in the 13 thin portions 13b is provided.

  Further, in the present invention, a screw body 11 in which a screw thread 11c is engraved on a shaft portion 11b extending from the head portion 11a, a casing 12 fixed to the head portion 11a of the screw body 11 and covering the outer periphery of the shaft portion 11b halfway, A threaded portion 13b is provided around the shaft portion 11b of the screw body 11 so as to be able to enter and exit the casing 12, the rear end engages with the front end of the casing 12, and the front end is provided with a thin portion 13b that is thinner than other portions. A panel fastener 10 having a tubular member 13 urged toward the distal end of the screw body 11 by a spring 14 provided in the casing 12, and is fixed to a mounting hole of the plate, and is formed in a polygonal column shape. A caulking jig 20 having a formed main body portion 20a, in which a female screw 20b is bored from one end of the main body portion 20a, and the main body portion is reduced in diameter toward the opening of the female screw 20b. Use The thin wall portion 13b of the tubular member 13 of the panel fastener 10 is inserted into the attachment hole 17 from one side surface 16a of the plate body 16, and the caulking jig 20 is inserted from the other side surface 16b of the plate body 16 through the attachment hole 17. The reduced diameter tip 20c is inserted into the thin portion 13b, the female screw 20b of the caulking jig 20 and the screw body 11 of the panel fastener 10 are screwed together, and then rotated so as to be relatively twisted. A method of fixing the panel fastener 10 to the plate body 16 is provided, characterized in that the thin-walled portion 13b is expanded by being twisted as described above and caulked in the mounting holes 17 of the plate body 16.

The caulking jig according to the present invention is configured such that a female screw is screwed into a screw body of a panel fastener inserted in a mounting hole of a plate body, and the screw main body is screwed into the female screw more than a predetermined amount, and then the caulking jig is turned into a rotary tool. By further tightening, the thin part of the panel fastener is enlarged and deformed at the tip of the caulking jig to be caulked in the mounting hole of the plate body. Therefore, if the panel fastener and the caulking jig are lightly screwed first, there is no need to keep the panel fastener and the caulking jig by hand during subsequent caulking prevention work, and handling is very easy. It is.
In addition, when the panel fastener is pressed and spread into the plate mounting hole, it is only necessary to relatively twist the panel fastener and the caulking jig. And noise, and work safety is also increased.

  Hereinafter, the present invention will be described with reference to the drawings, but the present invention is not limited thereto.

As shown in FIGS. 1 and 2, the caulking jig 20 of the present invention has a main body portion 20a formed in a polygonal column shape, and a female screw 20b is bored from one end of the main body portion 20a to the inside. The main body 20a is reduced in diameter toward the opening of the screw 20b, and the reduced diameter tip 20c is formed so as to fit into the thin portion 13b of the tubular member 13 of the panel fastener 10.
Here, the shape of the main body 20a can be formed in, for example, a triangular column shape, a quadrangular column shape, a polygonal column shape such as a hexagonal column shape, or a semi-cylindrical shape, and is not particularly limited. In this case, an existing tool such as a spanner or a spectacle wrench can be used as the rotary tool 21 that is fitted into the main body 20a and rotated. Further, the female screw 20b is formed so as to be able to be screwed into the shaft portion 11b of the screw main body 11 of the panel fastener 10.

When the panel fastener 10 is caulked to the plate body 16 using the caulking jig 20 of the present invention, first, the thin wall of the tubular member 13 of the panel fastener 10 is inserted into the mounting hole 17 from one side surface 16a of the plate body 16. The portion 13b is inserted, the tip 20c having a reduced diameter of the caulking jig 20 is inserted into the mounting hole 17 from the other side surface 16b of the plate body 16, and the female screw 20b of the caulking jig 20 is connected to the panel as shown in FIG. Screwed onto the screw body 11 of the fastener 10. At this time, the diameter-reduced tip 20 c of the caulking jig 20 is fitted in the thin portion 13 b of the tubular member 13 of the panel fastener 10. The mounting hole 17 is formed in the shape of a countersunk hole, the panel fastener 10 is inserted on the reduced diameter side of the countersink, and the caulking jig 20 is inserted on the increased diameter side of the countersink.
From the state of FIG. 3, when the panel fastener 10 and the caulking jig 20 are rotated with fingers or the like and the screw body 11 is screwed into the female screw 20 b, the head portion 11 a of the screw body 11 is attached to the tubular member 13. It comes into contact with the rear end 13a, making it difficult to twist with fingers. In such a state, a screwdriver 22 is fitted to the screw body 11 of the panel fastener 10, a wrench 21 is fitted to the main body portion 20 a of the caulking jig 20, and the wrench 21 is tightened. Thereby, the diameter-reduced tip 20c of the caulking jig 20 is screwed into the thin portion 13b of the panel fastener 10, and the thin portion 13b is enlarged and deformed to be caulked and stopped in the countersink. The caulking jig 20 is removed by rotating in the reverse direction after the panel fastener 10 is caulked and stopped.
As described above, when the caulking jig 20 is used, it is not necessary to hit the caulking jig with a hammer or the like as in the prior art even when the thin portion of the panel fastener 10 is spread and caulked in the countersunk hole. No noise is generated and the operation is relatively safe.

(A) is a side view of the crimping jig of this invention, (b) is sectional drawing. It is the perspective view which showed the state which uses the crimping jig | tool of this invention with another tool. It is sectional drawing which shows the process of caulking a panel fastener to a plate with the caulking jig of the present invention. FIG. 4 is a cross-sectional view showing a caulking process subsequent to FIG. 3. (A) is a side view of a panel fastener, (b) is sectional drawing. (A)-(c) is the figure which showed the method of caulking a panel fastener to a plate body using the conventional caulking jig.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Panel fastener 11 Screw main body 11a Head part 11b Shaft part 11c Screw thread 12 Casing 12b Tip 13 Tubular member 13a Rear end 13b Thin part 14 Spring 16 Plate body 17 Mounting hole 20 Caulking jig 20a Main part 20b Female screw 20c Reduced diameter Tip 21 Rotating tool 22 Screwdriver

Claims (2)

A screw main body in which a screw thread is engraved on a shaft portion extending from the head, a casing that is fixed to the head of the screw main body and covers the outer periphery of the shaft partway, and a screw main body that can be moved in and out of the casing. A thin-walled portion is provided around the shaft, the rear end engages with the tip of the casing, the wall thickness is thinner than other portions, and the tip of the screw main body is provided by a spring provided in the casing. A jig for fixing a panel fastener including a tubular member biased in a direction to a mounting hole of a plate,
The jig has a main body formed in a polygonal column shape that can be rotated by fitting a rotary tool, and a female screw that can be screwed into a shaft portion of the screw main body of the panel fastener. Is drilled inward from one end of the main body, the main body is reduced in diameter toward the opening of the female screw, and the reduced diameter tip is fitted into the thin wall portion of the tubular member of the panel fastener. Clamping jig for panel fasteners that are formed. A screw main body in which a screw thread is engraved on a shaft portion extending from the head, a casing that is fixed to the head of the screw main body and covers the outer periphery of the shaft partway, and a screw main body that can be moved in and out of the casing. A thin-walled portion is provided around the shaft, the rear end engages with the tip of the casing, the wall thickness is thinner than other portions, and the tip of the screw main body is provided by a spring provided in the casing. A panel fastener comprising a tubular member biased in a direction, and a method of fixing to a mounting hole of a plate body,
A crimping jig having a main body portion formed in a polygonal column shape, in which a female screw is bored from one end of the main body portion to the inside, and the main body portion is reduced in diameter toward the opening of the female screw. Use
Insert the thin wall portion of the tubular member of the panel fastener into the mounting hole from one side of the plate body, and insert the reduced diameter tip portion of the caulking jig into the thin wall portion through the mounting hole from the other side surface of the plate body. Insert and rotate the female screw of the crimping jig and the screw body of the panel fastener to rotate relative to each other, and rotate the thin part by more than a predetermined amount to attach the plate body. A method of fixing a panel fastener to a plate body, characterized by caulking in a hole.

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