JPS6232665Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a riveter, and more particularly to a riveter in which a frame body and a lever are pivotally connected, and a case is reciprocated by relative reciprocating rotation between the lever and the frame.

Conventional riveters have a lever pivotally attached to the frame body, a Jiyo case with an internal Jiyo mechanism attached to the tip of the lever, and an outer cylinder with the Jiyo case inserted inside the tip of the frame body, which can be rotated forward or backward. It is fixed to either side facing downward, and riveting is performed by rotating the lever relative to the frame body to reciprocate the case within the outer cylinder.

This type of riveter is described in U.S. Pat.
No. 3280615, No. 3328985, Japanese Patent Publication Sho
It is described in No. 48-30166, etc.

As mentioned above, in this type of riveter, the jyo mechanism is fixed in one direction, either forward or downward, so depending on the conditions such as the shape of the object to be riveted, there are two types: forward-facing type riveters and downward-facing types. It is necessary to replace the riveter each time, which is inconvenient and significantly reduces work efficiency, and it is not economical because two types of riveters must always be prepared.

In order to eliminate the above-mentioned drawbacks, the inventor of the present invention previously devised a riveter that can be used in two directions, forward and downward (Japanese Utility Model Publication No. 56-91648). However, this riveter has the disadvantage that when switching the operating direction, the riveter must be disassembled and reassembled using a special tool, which takes time and effort.

Taking this point into consideration, the present inventor has separately devised a riveter that can switch the operating direction relatively quickly (see Utility Model Publication No. 57-26937, Publication of Utility Model Publication No. 57-36349, In these riveters, (1) the head frame of the riveter is wide and the riveter is bulky, and (2) the case is not horizontally aligned. The operation of switching between vertical and vertical is complicated.

This will be explained below regarding each of the above prior art techniques.

First, in the hand riveter disclosed in Japanese Utility Model Publication No. 57-26937, as is clear from FIGS.
are integrally provided on the bifurcated attachment pieces 31 and 32, and by fixing the attachment pieces 31 and 32 to the head frame main body 4 using a fulcrum pin 36, a nut 38, and a bolt 39, the case can be fixed. A fitting outer cylinder 30 is fixed to the head frame main body 4 via attachment pieces 31 and 32. However, these attachment pieces 31 and 32 are attached so as to sandwich the side walls 2 and 3 of the head frame body 4 from the outside, and moreover, they have enough strength to support the outer cylinder 30 for insertion into the case. Therefore, it is necessary to make it thick. Therefore, these attachment pieces 31, 32
The width of the riveter increases by the thickness of the rivet, making it bulkier as a whole.

In addition, this riveter requires complicated operations for switching and moving the case in the horizontal and vertical directions. That is, for example, in order to switch the direction of the case 23 from the vertical direction to the horizontal direction, as shown in FIG. Together with the outer cylinder 30, as shown in FIG. 6,
While maintaining this state with one hand, use the other hand to insert the pulled out fixing pin 37 into each of these holes 2.
It must be inserted at 0, 14, and 6.

Next, in the hand riveter disclosed in Japanese Utility Model Publication No. 57-36349, as is clear from FIGS. 2 and 3, the rotary riveter has a U-shaped cross section and is integrally provided with an outer cylinder 14 for inserting the case. Case 1
0 walls 11 and 12 are located between both side walls 2 and 3 of the frame body 1, and this rotating case 10
The width of the riveter is increased by the thickness of the walls 11 and 12.

Also, in this riveter, for example, in order to switch the case from the vertical direction to the horizontal direction, the elongated hole 6 of the frame main body 1, the elongated hole 16 of the rotary case 10, and the hole of the operating lever 20 are shown in FIGS. 4 and 5. 24 and the rotary lever pin 23 from the hole 29 of the rotary lever 26, as shown in FIG. The elongated holes 6, 16 and the hole 25,
29, and while maintaining this state with one hand, use the other hand to insert the removed rotary lever pin 23 into each hole 6, 16, 25, 29.
must be installed.

Furthermore, in the hand riveter disclosed in Japanese Utility Model Publication No. 57-36348, as is clear from FIGS. 2 and 3, the rotary riveter has a U-shaped cross section and is integrally provided with an outer cylinder 18 for fitting and inserting the case. Walls 15 and 16 of the case 14 are located between both side walls 2 and 3 of the frame body 1, and the rotating case 1
The width of the riveter is increased by the thickness of the walls 15 and 16 of 4.

Also, in this riveter, for example, in order to switch the Joe case from the vertical direction to the horizontal direction, in FIG.
After removing the rotary lever pin 7 from the hole 36 of the rotary lever 33 using a rod-shaped tool, as shown in FIG.
Rotate the rotary lever 33 counterclockwise around the fulcrum pin 5 to align each hole 8, 20, 30 with the hole 37 of the rotary lever 33, and while maintaining this state with one hand, rotate the other By hand, insert the removed rotary lever pin 7 into each hole 8, 2.
It must be inserted at 0, 30, and 37.

Finally, in the hand riveter disclosed in Japanese Utility Model Publication No. 57-36347, as is clear from FIGS. 2 and 6, there is a bifurcated mounting system in which an outer cylinder 18 for inserting the case is integrally provided. Piece 19
is attached to the head frame 3 so as to sandwich it from the outside, and the thickness of the side wall of this attachment piece 19 is
The range of riveters is expanding.

Also, in this riveter, for example, in order to switch the case from the vertical direction to the horizontal direction, as shown in FIG. As shown in FIGS. 7 and 8, this support member is rotated clockwise together with the Joe case.
After moving the notch to the horizontal position, the bolt must be tightened while the engagement pawl is inserted into the notch.

The present invention solves the above-mentioned drawbacks of conventional riveters, and aims to provide a riveter that is not bulky and allows easy and quick switching of the operating direction.

In order to achieve this purpose, the present invention provides (1) a length extending from the front wall of the head frame 105 to the front part of the lower wall so that the case 160, 260 can be switched between the horizontal direction and the vertical direction;
A letter-shaped through groove 109 is provided, and (2) a keyhole-shaped female screw portion 107 with a large diameter is provided at both ends of the L-shaped groove 109.
The outer cylinder 170 for inserting the case can be switched between the horizontal direction and the vertical direction.
(3) Lever 120, 2
At the outer periphery of the tip of 20, there is a case pin 148,
Two notches 125, 12 that can engage 248
7, 225, 227 are provided at an angle of about 90 degrees, and the two notches 125, 127, 2
Jyo case pin 14 to either 25 or 227
By engaging lever 8,248, lever 12
0,220 vs. Jyo case 160,260
by attaching the levers 120, 220 in either of two different positions and rotating the levers 120, 220 reciprocally relative to the frame body.
260 is configured to reciprocate within the outer cylinder 170.

By adopting the configurations (1) and (2) above, there is no need to provide an attachment piece for the outer cylinder for inserting the Joe case on the outside or inside of the frame body, and the width of the riveter can be narrowed. .

In addition, by adopting the configuration (3), it is possible to switch and move the Jyo case horizontally and vertically by simply hooking the Jyo case pin to the two notches, and It is easy to operate and does not require any special parts.

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

First, in the first embodiment of the present invention shown in FIGS. 1 to 18, reference numeral 101 is an elongated frame body, which has a grip portion 102 at its free end, and both side walls on the tip side. A case-shaped head frame 1 consisting of a front wall that connects both side walls at their front edges, and a lower wall that connects the lower edges of both side walls.
05 is formed.

A continuous L extending from the front wall to the front part of the lower wall.
A letter-shaped groove 109 is formed. As will be described in detail later, this L-shaped groove is provided so that the mounting position of the case 160 can be switched between the horizontal direction and the vertical direction. Therefore, in order to fix the case horizontally and vertically, the L-shaped groove 109 has a
Keyhole-shaped screw holes 106 and 107 having a diameter larger than the groove width are provided.

Reference numeral 120 is a lever pivotally attached to the frame body. Like the frame main body 101, the lever 120 has a free end formed in the grip part 24, and both side walls extend toward the tip side following the grip part 24, and the upper edges of these both sides walls are connected by the upper wall. The upper wall is cut away at the tip of the frame to open upward. The tip of the lever 120 is inserted between the both side walls of the frame body 101 through the upper opening of the frame body 101, and the pivot shaft 121 is inserted into the shaft hole 10 provided in the both side walls of the head frame 105 of the frame body.
The frame body 101 and the lever 120 are connected to each other by the pivot shafts so as to be relatively rotatable.

A spring 123 bent into a dogleg shape is inserted between the lower wall of the frame body 101 and the upper wall of the lever 120 and is held by a pin 123'. The frame body 101 and the lever 120 are always urged to expand by this spring 123.

At the upper edge of the both side walls at the tip of the lever 120, there are two sets of corresponding notches 125, 125 and 127,
127 are provided. Of these notches, 125, 125 extend substantially vertically downward, and 127, 127 extend slightly diagonally rearward on the distal end side. Notch 125
and 127 are located at 90 degrees with the shaft hole 122 as the center. The protrusion 12 is located between the notches 125 and 127.
6, and its upper edge is in the shape of an arc.

As will be described later, if the case pin 148 is engaged with a pair of notches 125, 125 on the rear side, and the case fitting outer cylinder 170 is screwed into the screw hole 106 at the upper end of the front wall of the head frame, The case 160 is maintained in a horizontal orientation and is reciprocatable longitudinally in that orientation. Also, insert the case pin 148 into a pair of notches 127, 1 on the front side.
27 and by screwing the outer cylinder 170 into the screw hole 107, the case 160 can be reciprocated in the vertical direction.

Reference numerals 161 to 164 designate jacket members housed in the jacket case 160; 161 is a jacket; 162 is a jacket shear for pressing the jacket; 163 is a spring for further pressing the jacket;
Reference numeral 4 indicates a seat with which the upper end of the spring comes into contact; 148 indicates a Joyo case pin that is inserted perpendicularly to the axis of the Joho case 160 in the upper part of the Joyo case 160 and has both ends projecting to the outside of the Joyo case 160; the spring seat 164 is the Joyo case pin; 14
It is fitted and held in a recess 151 provided at 8.

181 is an L-shaped notch groove 1 in the frame body.
It is an L-shaped cover that covers 09, and holes 182 and 183 are bored at both ends thereof. cover 1
81 into the L-shaped groove 109, this hole 182,1
83 and the screw holes 106, 107 of the frame body, screw the outer cylinder 170 for fitting the J-Yo case into one of the two matched holes 106, 182 and 107, 183, and screw the set screw 184 into the other. Screw on.

The outer cylinder 170 for inserting the case has a male threaded portion on the outer periphery of its base so that it can be screwed into the screw holes 106, 107 of the head frame 105. The outer cylinder 170 is formed so that the Joe case 160 can be inserted therein, and has a nose piece 17 at the lower end.
4 is screwed on.

Next, the procedure for riveting using such a riveter will be explained.

First, the case where a downward riveting operation is performed will be described with reference to Figs.

In this state, the case pin 148 engages with the notch 127 on the tip side of the lever 120, and the case reciprocates in the vertical direction within the outer cylinder screwed into the screw hole 107.

A mandrel M is inserted into the sleeve S of the blind rivet L, and the tip of this mandrel is passed through the nose piece 174 and gripped by the jaw 161 housed in the jaw case 160. In this case, the frame body 101 and the lever 120 are connected to the spring 123.
It is kept in an expanded state by the force of. Next, the sleeve S of the rivet L is inserted into the holes formed in the members W, W to be joined, and in this state, the respective gripping parts 102, 24 of the frame body 101 and the lever 120 are inserted.
Grasp and apply force to rotate the two in the direction in which they approach each other. At this time, the tip side wall of the lever 120 is actuated upward, and the case 160 is pulled upward through the case pin 148 engaged with the notch 127. In this way, the mandrel M is pulled upward by the rotation of the lever 120, but the flange F provided at the base end of the sleeve S comes into contact with the lower surface of the nose piece 174 and is prevented from moving. The head H of the mandrel bites into the sleeve S and causes the sleeve S to expand and deform. Then, as shown in FIG. 8, the sleeve S is sufficiently deformed and the members W, W to be joined are clamped and fastened together, and the mandrel M is broken at its narrow part K, completing the riveting.

Next, in order to change the mounting direction of the Jyo mechanism from the vertical direction shown by the chain line in Fig. 9 to the horizontal direction shown by the solid line in the same figure, first, as shown in Figs. The insertion outer cylinder 170, set screw 184, and L-shaped cover 181 are sequentially removed from the frame body, and then, as shown in FIG. Push up the case pin 148 along the arcuate outer periphery of the protrusion 126 at the tip of the lever as shown by the arrow in FIG.
Inserted into 5. Then, as shown in FIGS. 15 and 16, the L-shaped cover 181 is placed over the groove 109, the outer cylinder 170 for fitting the case is screwed into the horizontal screw hole 106 of the head frame 105, and the setscrew is screwed. 184 to head frame 105
Screw into the vertical screw hole 107.

Note that by performing the above procedure in reverse, the mounting direction of the jaw mechanism can be changed from the horizontal direction to the vertical direction.

Figures 17 and 18 show the case of riveting in the horizontal direction (rivets are omitted). Figure 17 corresponds to Figure 6 with the lever open, and Figure 18 shows This corresponds to FIG. 8 with the lever closed.

In this way, the riveter according to the above embodiment can change the jyo mechanism to the vertical or horizontal direction with a simple operation.

FIG. 19 shows an example of a modification of the notch in the embodiment described above, and corresponding parts are indicated by the reference number of the embodiment described above plus 100. In this case, the upper part of the notch at the tip of the lever 220 is not open, and the horizontal notch 225 and the vertical notch 227 are approximately 90 degrees centered on the pivot shaft 222 bored in the frame 220.゜Arc-shaped guide window 2
24, and by sliding the jyo case pin along this guide window 224, the jyo mechanism can be switched between the horizontal direction shown by a solid line and the vertical direction shown by a chain line. In this case, since the notches 225 and 227 are closed by the guide window 224, the case pin does not completely disengage from the lever 220 when changing the position of the case, which is convenient. In addition, the case pin can be easily guided along the guide window, which is preferable.

The riveter according to the present invention is constructed as described above, and in order to directly attach the outer cylinder for fitting and inserting the Joe case to the head frame, a mounting piece for the outer cylinder for fitting and inserting the Joe case is provided on the outside or inside of the frame body. This is not necessary and the width of the riveter can be made narrower.

In addition, by simply changing the Jiyo case pin to the two notches of the lever, it is possible to switch and move the Jiyo case in the horizontal and vertical directions, and the operation for switching is easy. There is no need to provide any special members.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway exploded perspective view showing an embodiment of the present invention, Fig. 2 is a perspective view of the head frame 105, Fig. 3 is a front view, and Fig. 4 is a partially omitted view. FIG. 5 is a vertical sectional view taken along the - line in FIG. , a partially omitted sectional view taken along the - line in Fig. 6, Fig. 8 is a vertical sectional view of the main part showing the process of riveting, showing the state immediately after the riveting is completed, and Fig. 9 shows the case with the jill case in the vertical direction. Fig. 10 is an explanatory diagram of the state in which the switch is arranged in the horizontal direction.
A perspective view of the Jyo case with the Jyo case pin inserted and attached, and FIGS. 11 to 16 are longitudinal cross-sectional views of the main parts showing the state in the middle of switching the arrangement of the JYO mechanism, and FIG. Fig. 12 shows the state in which the outer cylinder has been loosened and removed, Fig. 12 shows the state in which the set screw and L-shaped cover have been removed, and Fig. 13 shows the state in which the set screw and L-shaped cover have been removed.
Figure 14 shows the case pin removed from the vertical notch, Figure 14 shows the case pin pushed up along the outer periphery of the tip of the lever, and Figure 15 shows the case pin removed from the horizontal notch. Figure 16 shows the L-shaped cover tightened with a set screw, and Figure 17 shows the L-shaped cover tightened with the set screw.
The figure is a vertical cross-sectional view of the main parts of the riveter shown in the previous figure when the lever is gripped, and Fig. 19 is a vertical cross-sectional view of the main parts when the lever is expanded while the case is held horizontally. This is a longitudinal cross-sectional view of a main part showing a modification of the embodiment, showing a state in which the case is switched from vertical to horizontal. Explanation of symbols, 101...Frame body, 105
...Head frame, 106, 107...Female screw portion, 109...L-shaped groove, 120, 220...
Lever, 148, 248...Jyo case pin,
160, 260...Jyo case, 170...Outer cylinder, 125, 127, 225, 227...Notch, 224...Guide window.

Claims (1)

[Claims for Utility Model Registration] 1. A frame body 101, levers 120, 220 pivotally connected to the frame body 101, and a head provided at the tip of the frame body 101, comprising at least left and right side walls, a front wall, and a bottom wall. A frame 105, an outer cylinder 170 attached to the head frame 105, a case 160, 260 housed in the outer case 170 so as to be able to reciprocate, and a mounting position of the case 160, 260 that can be switched between horizontal and vertical directions. A groove 1 having an L-shaped cross section that communicates openly the front wall and the front part of the lower wall of the head frame 105.
09. Female threaded portions 106 and 107 with a diameter larger than the groove width provided at both ends of the L-shaped groove 109 so that the outer cylinder 170 can be fixed to the head frame 105 in the horizontal and vertical directions, and the lever 120. It consists of two notches 125, 127; 225, 227 provided at an angle of about 90 degrees on the outer peripheral edge of the distal end of 220, and the two notches 125, 127;
227 to either case pin 148,
248 to engage the levers 120, 22.
0, the Jyo case 160, 260
is mounted in one of two different positions, and by reciprocating the levers 120, 220 with respect to the frame body 101, the Joe cases 160, 260 reciprocate within the outer cylinder 170. A riveter characterized by having done. 2 The two notches 22 on the lever 220
5,227 The riveter according to claim 1, characterized in that a continuous arc-shaped guide window 224 is provided.