JP3028739U - Blind rivet holder - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To sufficiently and stably hold a blind rivet with respect to a long plastic body to sufficiently maintain the positional accuracy of a mandrel. SOLUTION: A U-shaped plastic elongated body 1 in which an upper tab 4 and a lower tab 5 are continuously provided, a feed hole 6 formed in a vertical portion 2 for feeding the plastic elongated body 1 in a certain direction, It comprises a first through hole 7 formed in the upper tab 4 and a second through hole 8 formed in the lower tab 5, so that the upper tab 4 and the lower tab 5 can be horizontally displaced from each other. And the first through hole 7 and the second through hole 8,
The blind rivet 9 is tilted at an angle so that it can be obliquely inserted therethrough, and the blind rivet 9 is obliquely inserted into the first through hole 7 and the second through hole 8, and the head 12 thereof is engaged with the inner surface side of the lower tab 5. Stop and put on.

Description

[Detailed description of the device]

[0001]

[Technical field to which the device belongs]

 The present invention relates to a blind rivet holder used for a riveter capable of continuously striking blind rivets.

[0002]

[Prior art]

 A conventional riveter is, for example, as disclosed in Japanese Patent Laid-Open No. 61-7852, when the rivet is set, the blind rivet cores are inserted one by one from below the nose piece, and after rivet setting, The cut axle of the blind rivet was designed to be ejected from the top of the riveter.

In the conventional riveter as described above, the blind rivets have to be mounted one by one, which is troublesome.

Therefore, a blind rivet has been applied as a Japanese Patent Application No. 3-152 150 in which a blind rivet is automatically supplied and the axis of the broken rivet is prevented from being scattered.

On the other hand, a blind rivet holder used for this continuous riveter has been filed as Japanese Patent Application No. 4-76367 filed on February 26, 1992. As shown in FIGS. 5 to 7, the blind rivet holder is composed of a U-shaped plastic elongated body 100, and upper and lower ends thereof are provided with rectangular upper tabs and lower tabs 101 at regular intervals. They are arranged with a gap 103 therebetween.

Then, rectangular feed holes 105 are formed at regular intervals in the vertical portion 110 connecting the upper and lower tabs 101. A through hole 104 and two slits 106 are radially cut near the tips of the upper and lower tabs 101, 101, and the tips of the slits are stopped by small holes 107.

The diameter of each through hole 104 is formed to be slightly smaller than the core shaft 33 a of the blind rivet 33.

The blind rivet 33 is inserted into the through holes 104 of the lower and upper tabs 101 from below, and the rivet body 33b and the head 33c are on the outer side (lower side) of the lower tab 101, The head portion 33c is in contact with the lower surface of the tab 101 below the head portion 33c.

On the other hand, on the other hand, in order to facilitate riveting with the rear portion of the rivet lifted upward, or to increase the number of blind rivets held on the plastic elongated body, A proposal has been made in which the blind rivet is supported on each of the upper and lower tabs by inclining rather than making the plastic elongated body orthogonal to the longitudinal direction.

[0010]

[Problems to be solved by the device]

 However, in such a conventional blind rivet holder, the through holes provided in the upper and lower tabs for inserting the blind rivet are formed in the direction orthogonal to the longitudinal direction of the plastic elongated body. As a result, the contact area between these through holes and the axis of the blind rivet becomes very small, and as a result, the holding force of the blind rivet due to these through holes becomes insufficient and unstable. There was a problem that the blind rivet fell off from the long plastic body.

In addition, there is a problem that the plastic elongated body is twisted by the insertion of the blind rivet in the through hole in the orthogonal direction, and it becomes difficult to obtain the positional accuracy of the mandrel.

Further, as shown in FIGS. 5 to 7, in the case where the head 33c of the blind rivet is located on the outer surface (lower surface) of the lower tab 101, let this be held by the nose point of the riveter. In this case, there is a problem that the mandrel may fall off from the through holes of the upper and lower tabs 101 due to the interference force or frictional force with the nose piece.

The present invention has been made in view of the above-mentioned conventional problems, and allows the blind rivet to be held obliquely and sufficiently with respect to the plastic long body sufficiently and stably, and the positional accuracy of the core shaft can be improved. The purpose of the present invention is to provide a blind rivet holder that is capable of sufficiently maintaining the shaft and preventing the core shaft from slipping out from each tab of the plastic elongated body when gripping the core shaft by lowering the nose piece of the riveter. And

[0014]

[Means for Solving the Problems]

 The blind rivet holder according to the present invention includes a U-shaped plastic elongated body in which upper and lower tabs are continuously arranged at regular intervals at the upper and lower ends of the vertical portion, and is formed in the vertical portion. A feed hole for feeding the plastic elongated body in a fixed direction, a first through hole formed in the upper tab for holding the blind rivet by inserting the mandrel, and a lower hole formed in the lower tab. A second through hole for inserting and holding an integral rivet body in the head so that the head of the blind rivet is locked to the inner surface of the lower tab, and the upper tab and the lower tab are provided. Are provided so that their positions are displaced from each other in the horizontal direction, and the first through hole and the second through hole are inclined at an angle along the outer circumference of the blind rivet which is obliquely inserted therein. Ke, blinds Bet is inserted obliquely into the first through hole and second through-holes is obtained by mounting the head in to engage with the inner surface of the lower tab.

[0015]

[Embodiment of device]

 An embodiment of the present invention will be described below with reference to the drawings. 1 and 2 are a front view and a plan view showing a blind rivet holder according to the present invention. In FIG. 1 and FIG. It is a long plastic body in which a lower tab 5 is connected.

A feed hole 6 is formed in the vertical portion 2 of the plastic elongated body 1 to feed the same in a fixed direction with a rivet feed claw of a riveter. Here, the upper tab 4 and the lower tab 5 are displaced from each other in the horizontal direction, and a first through hole 7 and a second through hole 8 are formed in these.

As shown in FIG. 3, the plastic elongated body 1 is formed by punching out a plate-shaped plastic member or a plate body having the upper tab 4 and the lower tab 5 by integral molding. A thing is used, and it can be obtained by bending this at the base part (dotted line part) of each tab 4, 5.

As shown in FIG. 4, the inner peripheral surface of each of the through holes 7 and 8 is inclined so as to follow the insertion angle of the blind rivet 9 inserted therein. Here, the first through hole 7 is sized to hold the blind rivet 9 through the mandrel 10, and the second through hole 8 is sized to penetrate and hold the rivet body 11 of the blind rivet. It is said that.

The head portion 12 of the blind rivet 9 has a larger outer diameter than the rivet body 11 as shown in FIG. 4 and is in contact with the inner side surface (upper surface) of the lower tab 5 so as to extend from the second through hole 8. It is supported so that it does not fall out.

It should be noted that the through holes 7 and 8 are continuously provided with openings 13 and 14 that expand toward the tip direction (outward) of the tabs 4 and 5, respectively. The openings 13 and 14 are provided so that the mandrel 10 and the rivet body 11 can be attached and detached.

Further, the plastic elongated body 1 to which the blind rivet 9 is attached as described above is obtained as a flexible integrally molded product, and moreover, between the upper tabs 4 and 4 and between the lower tabs 5 and 5. Since the gap 3 is provided in the coil, it can be wound in a coil shape.

Then, the winding body is housed in a storage case (magazine) of the riveter, and is sent out by the above-mentioned feed pawl during the rivet striking work, so that the blind rivet is automatically sent to the nosepiece of the riveter. It is possible to continuously rivet an object such as a sheet metal.

As described above, the blind rivet holder of the present invention is different from the conventional blind rivet holder in which the blind rivet is mounted on the plastic elongated body 1 in a direction orthogonal to the longitudinal direction thereof. By supporting the slanted direction with respect to the plastic elongated body, the amount of blind rivet mounting per set length of the plastic elongated body 1 can be increased.

In addition, for holding the blind rivet in the oblique direction, the first through hole 7 and the second through hole which are provided in the upper tab and the lower tab at a certain angle so that the center lines of the holes coincide with each other. By inserting and holding the mandrel 10 and the rivet body 11 into the shaft 8, the inner peripheral surfaces of the through holes 7 and 8 are in close contact with the outer circumference of the mandrel 10 and the rivet body 11 in a large area. Becomes

Therefore, due to this close contact, the holding of the blind rivet with respect to the elongated plastic body 1 is stably and sufficiently maintained, and accidental dropping can be avoided. Further, the positional accuracy of the mandrel is ensured, and the plastic elongated body 1 can be prevented from being twisted.

Further, by supporting the rivet body 11 through the second through hole 8 so that the head 12 of the blind rivet hits the inner surface of the lower tab 5, the rivet is set when the rivet is set. Even when the mandrel 10 is gripped by lowering the nose piece of the mandrel, the mandrel 10 and the rivet body 11 become a resistance to fall downward from the first through hole 7 of the upper tab 4 and the second through hole 8 of the lower tab 5, It is securely gripped by the nose piece.

[0027]

[Effect of device]

 As described above, according to the present invention, the U-shaped plastic elongated body in which the upper tab and the lower tab are continuously arranged at regular intervals at the upper and lower ends of the vertical portion and the vertical portion are formed. A feed hole for feeding the plastic elongated body in a fixed direction, a first through hole formed in the upper tab for inserting and holding the mandrel shaft of the blind rivet, and a blind formed in the lower tab. A second through hole for inserting and holding an integral rivet body in the head so that the head of the rivet is locked to the inner surface side of the lower tab, and the upper tab and the lower tab are horizontally arranged. The first through hole and the second through hole are provided so as to be displaced from each other in the direction, and are inclined at an angle along the outer circumference of the blind rivet that is obliquely inserted therethrough. Is on Since the first through hole and the second through hole are obliquely inserted, and the head of the blind tab is locked and attached to the inner surface side of the lower tab, the blind rivet is held obliquely to the elongated plastic body. To maintain the position accuracy of the mandrel sufficiently and stably, and when gripping the mandrel by lowering the nosepiece of the riveter, the lower tabs are the tabs whose cores are plastic tabs. It becomes a resistance to fall out of the nose piece and has the effect of being securely gripped by the nose piece.

[Brief description of drawings]

FIG. 1 is a front view showing a blind rivet holder according to an embodiment of the present invention.

FIG. 2 is a plan view of the blind rivet holder shown in FIG.

FIG. 3 is a front view showing the elongated plastic body according to the present invention in a developed state.

FIG. 4 is a cross-sectional view of an essential part showing a mounting structure of a blind rivet on a long plastic body according to the present invention.

FIG. 5 is a front view of a conventional blind rivet holder.

6 is a cross-sectional view showing a part of the blind rivet holder of FIG.

FIG. 7 is a bottom view showing a part of the blind rivet holder of FIG.

[Explanation of symbols]

 1 Plastic Long Body 2 Vertical Part 3 Gap 4 Upper Tab 5 Lower Tab 6 Feed Hole 7 First Through Hole 8 Second Through Hole 9 Blind Rivet 10 Spindle 11 Rivet Body 12 Head

Claims (1)

[Scope of utility model registration request] 1. A U-shaped plastic elongated body in which an upper tab and a lower tab are continuously provided at regular intervals at upper and lower ends of a vertical portion, and the plastic elongated body formed in the vertical portion. Feed hole for sending out a fixed direction, a first through hole formed in the upper tab to insert and hold the core shaft of the blind rivet, and a head portion of the blind rivet formed in the lower tab. A second through hole for inserting and holding an integral rivet body in the head so as to lock the upper tab and the lower tab on the inner surface side, and the upper tab and the lower tab have horizontal positions. Provided offset from each other,
Further, the first through hole and the second through hole are provided so as to be inclined at an angle along the outer periphery of the blind rivet that is obliquely inserted therethrough, and the blind rivet includes the first through hole and the second through hole. A blind rivet holder, which is inserted obliquely through a through hole and whose head is locked and attached to the inner surface side of the lower tab.