JPH066264Y2 - Tack - Google Patents

Description

[Detailed description of the device] [Industrial applications]

The present invention relates to a tack, and more particularly to a tack that is suitably used as a tack in products such as bags, bags, and containers.

2. Description of the Related Art As a conventional tack of this kind, there is, for example, a tack main body 8 and a tack cap 9 as shown in FIGS. 5 and 6, respectively. One end of the stud body 8 has a shaft portion 8a.
A hollow portion 8c that is open to the tip surface 8b of 8a is formed. Further, the rivet cap 9 has a bottom wall 9a whose upper surface projects in a substantially conical shape in FIG. And a peripheral edge 9b that surrounds the above-mentioned upper surface and that curves toward the inner side in the radial direction of the bottom wall 9a and extends from the edge portion of the bottom wall 9a. According to the stud having such a structure, in order to fix the stud to the stud material, the shaft portion 8a of the stud body 8 is inserted into the through hole formed in the stud material, and Shaft part 8a of the main body 8
After inserting the tip of the above into the above-mentioned stud cap 9, it can be easily performed by using, for example, a stud driving machine. However, depending on the location of the tack, it may not be possible to do this using a tacker, and it may have to be done manually. In this case, the following may be done. That is, first, as shown in FIG. 7, the shaft portion 8a of the tack body 8 is penetrated from below into the through hole 12a formed in the tack member 12 to be stopped. Next, the stud cap 9 is put on the tip of the shaft portion 8a of the stud body 8 so that the shaft portion 8a of the stud body 8 is covered.
The tip of the is inserted into the stud cap 9. further,
In this state, as shown in FIG. 7, hold the striking rod 10 in one hand and place one end face of the striking rod 10 against the generally conical recessed surface of the bottom wall 9a of the tack cap 9. Then, the tack body 8 and the tack cap 9 are positioned relative to each other, and then the other end surface of the striking rod 10 is tapped from above with a hammer held in the other hand in that state.
Then, the peripheral wall 8d of the hollow portion 8c at the tip of the shaft portion 8a of the tack body 8 is guided by the surface of the bottom wall 9a of the tack cap 9 that protrudes in a substantially conical shape, and moves outward in the radial direction of the shaft portion 8a. The peripheral edge 9b of the rivet cap 9 is pushed toward the bottom wall 9a side by the rivet member 12 while being pushed out.
After that, when the other end surface of the striking rod 10 is further strongly hit with the hammer, the studs are fixed to the stud members 12 in a state as shown in FIG.

[Problems to be solved by the device]

By the way, as described above, according to the conventional tack, in the case of manual striking, the striking rod 10 must be used, and moreover, by the striking rod 10, the tack body 8 is
And the stud cap 9 must be positioned relative to each other. Further, when the other end surface of the striking rod 10 is hit with the hammer, the impact may cause the rivet body 8 and the rivet cap 9 to be displaced, so that they are always positioned relative to each other. Is very difficult. Therefore, according to the conventional tack, there is a problem that it is troublesome and very difficult to fix the tack to the to-be-fixed tack member 12 by hand. The present invention has been devised in order to effectively solve these problems in view of the above problems. Therefore, its purpose is
Another object of the present invention is to provide a rivet which can be easily fixed to a tack member to be stopped by hand driving without using a driving rod.

[Means, actions, and effects for solving problems]

The tack according to the present invention is configured as follows in order to solve the problems of the prior art and achieve the object. That is, the shaft portion of the tack body has a temporary fixing projection on the outer periphery of the tip end portion thereof. The stud cap is composed of a cap body that forms a bottom wall of the stud cap, and a roughly trumpet-shaped fitting member that is internally fitted in the cap book and that forms a peripheral edge of the stud cap. The cap body is
The center portion of the inner surface of the cap body has the above-mentioned push-out projection, and the outer surface of the cap body is formed into a substantially flat surface. The fitting member is approximately equal to the outer diameter dimension of the large-diameter end portion engaging with the peripheral edge of the cap body and the shaft portion of the tack body, and the outer diameter dimension of the temporary fixing projection of the shaft portion of the tack body. A smaller diameter end having a slightly smaller inner diameter dimension. According to the tack according to the present invention, it can be fixed as follows to the tacked tacky material by hand. That is, first, the shaft portion of the tack body is made to penetrate the tack member to be stopped. Next, after aligning the small-diameter end portion of the fitting member of the tack cap with the tip of the shaft portion of the tack body,
Press the stud cap against the stud body. Then, since the inner diameter dimension of the small diameter end portion of the engagement member is approximately equal to the outer diameter dimension of the shaft portion of the tack body, the tip of the shaft portion of the tack body is slightly inserted into the tack cap,
The small-diameter end of the fitting member reaches a position where it comes into contact with the temporary fixing projection. From this state, when the tack cap is further pressed against the tack body, the hollow tip constituting wall of the shaft member of the snap member or the tack body has a small diameter end portion of the snap member of the tack body. It temporarily bends so that it can get over the temporary fixing protrusion. As a result, the tip of the shaft portion of the tack body contacts the push-spreading protrusion of the cap body of the tack cap, and the tip of the push-spreading protrusion is inserted into the hollow portion of the tack body, until the tip of the push-spreading protrusion is inserted. Is inserted deeper into. Then, the outer diameter of the temporary fixing protrusion of the shaft portion of the tack body is slightly larger than the inner diameter of the small diameter end portion of the fastening member, so that in this state, the tip of the shaft portion of the tack body has the tack cap. The stud body and the stud cap are temporarily fixed to each other so that they cannot be slipped out of the inside, and the two are positioned with respect to each other. From this state, when the outer surface of the cap body of the stud cap is tapped directly with, for example, a hammer held in the hand, the hollow tip constituting wall of the shaft portion of the stud body is guided outward by the push-spreading protrusions and spread outward in the radial direction. At the same time, the fitting member is pushed and bent toward the cap body by the tacked tack member. After that, when the outer surface of the cap body is further tapped with the hammer, the hollow tip forming wall of the tack body is crushed between the cap body and the fitting member, and the hollow tip forming wall is the fitting member. And the stud body and the stud cap are connected to each other. This allows
The tack according to the present invention is fixed to the tacked material. As described above, according to the stud of the present invention, since the outer surface of the cap body is formed into a substantially flat surface, the outer surface can be directly hit by the hammer, so that the hammer can be used without using a hammer. The tack according to the invention can be fixed to the tacked material. By the way, in the conventional tack, when fixing the tack to the to-be-held material, the bottom of the tack cap 9 is covered with the tack cap 9 on the tip of the tack body 8 as shown in FIG. Even if the wall 9a is hit with a hammer directly without using the rod 10, the hammering force of the hammer is not transmitted well to the tack body due to the elastic force of the bottom wall 9a, and the tack is shown in FIG. As described above, it cannot be properly fixed to the tacked material 12. Further, according to the stud of the present invention, the stud main body and the stud cap can be positioned relative to each other by inserting the tip of the shaft portion of the stud main body into the stud cap. When the outer surface of the cap body is hit with the hammer, the impact does not cause the tack body and the tack cap to be displaced from each other. Therefore, according to the tack according to the present invention, the tack can be easily fixed to the to-be-stopped tack member by hand striking.

【Example】

Hereinafter, an embodiment of the tack according to the present invention will be described with reference to FIGS. 1 and 2 are vertical cross-sectional views of a stud body 1 and a stud cap 11 which constitute a stud according to an embodiment of the present invention. The tack body 1 includes a generally hemispherical head portion 1a and a generally cylindrical shaft portion 1b having a diameter smaller than that of the bottom surface of the head portion 1a and protruding from the bottom surface of the head portion 1a. Become. The shaft portion 1b of the tack body 1 is formed with a hollow portion 1d having one end open to the tip surface 1c of the shaft portion 1b and the other end having a substantially conical shape. Further, at a position on the peripheral wall of the hollow portion 1d, that is, the outer periphery of the hollow tip forming wall 1e and slightly away from the tip surface 1c of the shaft portion 1b, the position is separated by about 180 ° from the peripheral surface of the shaft portion 1b. The two temporary fixing protrusions 1f and 1g having the same protrusion amount are provided. On the other hand, the stud cap 11 is a single-piece structure and constitutes the bottom wall of the stud cap 11, and one end portion, that is, the large-diameter end portion 4a is wound around the edge of the cap body 2 having a substantially annular cross section. Fixed and cap body 2
It is composed of a generally trumpet-shaped fitting member 4 which is fitted inside. On the inner surface of the cap body 2, that is, the central portion of the upper surface in FIG.
Are formed. On the other hand, the outer surface of the cap body 2, that is, the lower surface in FIG. Further, the other end of the fastening member 4, that is, the small diameter end 4b.
The inner diameter dimension 7 is substantially equal to the outer diameter dimension 5 of the shaft portion 1b of the tack body 1. According to the tack according to the present embodiment, it is possible to fix it to the to-be-held tack by hand striking as follows. That is, first, as shown in FIG. 3, the shaft portion 1b of the tack body 1 is penetrated into the through hole 3a formed in the tack member 3 to be stopped. Next, after aligning the small-diameter end portion 4b of the fitting member 4 of the tack cap 11 with the tip of the shaft portion 1b of the tack body 1,
The tack cap 1 is pressed against the tack body 1 with a finger. Then, the inner diameter dimension 7 of the small-diameter end portion 4b of the engagement member 4 is substantially equal to the outer diameter dimension 5 of the shaft portion 1b of the tack body 1, so that the tip of the shaft portion 1b of the tack body 1 is attached to the tack cap 11. Inserted slightly inside, the small diameter end portion 4b of the engagement member 4 reaches a position where it abuts on the temporary fixing projections 1f, 1g. From this state, attach the stud cap 11 to the stud body 1
On the other hand, when the finger is pressed more strongly with the finger, the snap-on member 4 temporarily bends so that the inner diameter of the small-diameter end portion 4b becomes slightly larger. As a result, the small-diameter end portion 4b of the engagement member 4 can ride over the temporary fixing protrusions 1f and 1g of the tack body 1. As a result, the tip of the shaft portion 1b of the tack body 1 comes into contact with the push-spreading protrusion 2a of the cap body 2 of the tack cap 11 and the tip of the push-spreading protrusion 2a is inserted into the hollow portion 1d of the tack body 1. Until the above-mentioned tack cap 11
It is inserted deeper inside. Then, the tack body 1
Since the outer diameter dimension 6 of the temporary fixing projections 1f and 1g of the shaft portion 1b is slightly larger than the inner diameter dimension 7 of the small-diameter end portion 4b of the fastening member 4, in this state, the shaft portion 1b of the tack body 1 is The tip cannot be pulled out from the inside of the tack cap 2, and the tack body 1
And the tack cap 11 are temporarily fixed to each other, and the two are positioned relative to each other. From this state, when the outer surface of the cap body 2 of the stud cap 11 is directly hit with a hammer holding the hand, the hollow tip constituting wall 1e of the shaft portion 1b of the stud body 1 is guided by the push-spreading protrusion 2a and the diameter thereof is increased. The push-out member 4 is pushed outward in the direction, and at the same time, the snap-on member 4 is pushed and bent toward the cap main body 2 side by the locked tack member 3. Thereafter, when the outer surface of the cap body 2 is further tapped with the hammer, the hollow tip forming wall 1e of the tack body 1 is crushed between the cap body 2 and the engaging member 4, and the hollow tip forming wall 1e is crushed. 1e is engaged with the engagement member 4 so that the tack body 1 and the tack cap 11 are connected to each other. As a result, the tack according to this embodiment is fixed to the to-be-fixed tack member 3. As described above, according to the tack according to the present embodiment, since the outer surface of the cap body 2 is formed into a substantially flat surface, the outer surface can be directly hit with the hammer, so that a hitting rod should be used. Instead, the tack according to this embodiment can be fixed to the to-be-fixed tack member 3. Further, according to the tack according to the present embodiment, the shaft portion of the tack body 1 is
By inserting the tip of 1b into the tack cap 11, the tack body 1 and the tack cap 11 can be positioned relative to each other, and the outer surface of the cap body 2 of the tack cap 11 is hammered. The stud body 1 and the stud cap 11 are not displaced from each other due to the impact of the impact. Therefore, according to the tack according to the present embodiment, the tacked member 3 can be easily pushed by hand.
Can be fixed to.

[Brief description of drawings]

FIG. 1 is a vertical sectional view of a stud main body of a stud according to an embodiment of the present invention, FIG. 2 is a vertical sectional view of a stud cap of the stud according to the above embodiment, and FIG. 3 is a stud according to the above embodiment. FIG. 4 is a vertical cross-sectional view showing the process of fixing to the tacked tack material, and FIG. 4 is a longitudinal cross-sectional view showing the tack tacked to the tacked tackle material shown in FIG.
FIG. 5 is a vertical sectional view of a stud main body of a conventional stud, FIG. 6 is a vertical sectional view of a stud cap of the conventional stud, and FIG. 7 shows a process of fixing the above-mentioned conventional stud to a tacked tack member. FIG. 8 is a vertical cross-sectional view showing a state in which the above-described conventional tack is fixed to the to-be-locked tack member shown in FIG. DESCRIPTION OF SYMBOLS 1 ... Tack body, 1a ... Head, 1b ... Shaft part, 1c ... Shaft end surface, 1d ... Hollow part, 1e ... Hollow end constituent wall, 1f, 1g ... Temporary fixing projection, 2 ... Cap body, 2a ... Spreading protrusions, 3 ... studs to be fixed, 3a ... Through hole, 4 ... Fastening member, 4a ... Large diameter end, 4b ... Small diameter end, 5 ... Outside that does not include temporary fixing protrusion of shaft of tack body Diameter dimension, 6 ... Outer diameter dimension including temporary fixing projection of shaft portion of tack body, 7 ... Inner diameter dimension of small diameter end of fastening member, 11 ... River cap.

Claims (1)

[Scope of utility model registration request] 1. A tack body (1) and a tack cap which are connected to each other.
(11), and the stud body (1) has a hollow shaft portion with an open tip.
While having the (1b), the stud cap (11), in the center of the inner surface of the bottom wall, when the stud body (1) and the stud cap (11) are connected, the hollow of the stud body (1). It has a push-spreading protrusion for pushing the tip-constituting wall (1e) outward in the radial direction, and the hollow tip-constituting wall (1
In a tack having a peripheral edge engaging with e), the shaft portion (1b) of the tack body (1) has a temporary fixing protrusion (1f, 1g) on the outer periphery of the tip portion thereof, and the tack cap (11) is A cap body (2) forming a bottom wall of the tack cap (11), and a roughly trumpet-like fit which is fitted into the cap body (2) and constitutes a peripheral edge of the tack cap (11). Composed of a member (4), the cap main body (2) has the push-spreading protrusion (2a) at the center of the inner surface thereof, and the outer surface of the cap main body (2) is formed into a substantially flat surface, The engagement member (4) has a large diameter end portion (4a) that engages with the peripheral edge of the cap body (2) and the outer diameter dimension of the shaft portion (1b) of the tack body (1) and are substantially equal to each other. Characterized in that it has a small diameter end portion (4b) having an inner diameter dimension slightly smaller than the outer diameter dimension of the temporary fixing projections (1f, 1g) of the shaft portion (1b) of the tack body (1). Tacks.