JPS6252652B2 - - Google Patents

Description

A frame main body 11 A lever 21 pivotally connected to the frame main body 11 A head frame 13 consisting of at least left and right side walls 18, 18, a front wall 19, and a lower wall 19' provided at the tip of the frame main body 11; A joyo case 51 that reciprocates in a linear direction by reciprocating rotation relative to the frame body 11. An outer cylinder 61 for inserting the joyo case, which houses the joyo case 51 in a reciprocating manner and is detachably attached to the head frame 13. A groove 17 having an L-shaped cross section that opens and communicates the front wall 19 and the front part of the lower wall 19' of the head frame 13 so that the mounting position can be switched between horizontal and vertical directions. the head frame 13 in the direction and vertical direction.
female threaded portions 15, 16 having a diameter larger than the groove width provided at both ends of the L-shaped groove 17 so that the two circular side plates 32, 32 can be fixed at one point in the circumferential direction; The Joe case 51 is attached directly or indirectly to the side plates 32, 32, and the frame main body 11 and the lever 21 are attached within the tip of the lever.
An actuation support member 31 of the case is rotatably coupled coaxially with a pivoting portion 71 of the actuation support member 31, so that the actuation support member 31 can be fixed to the lever 21 at two different positions. , two sets of notches 3 provided at an angle of about 90° about the pivot shaft 71;
4, 34, 35, 35 Notches 34, 34 of the operation support member 31,
In order to insert the fixing pin 74 engaged with the lever 21 into the lever 21, the fixing pin slide elongated hole 25, 25 provided in the lever 21 XI.
A cam lever 41 having cams 45, 45 that are pushed out from the notches 34, 34, 35, 35 to release the fixation of the operation support member 31 to the lever 21. The riveter according to claim 1, characterized in that the riveter is attached to the operation support member 31.

3. The riveter according to claim 1, wherein the Jyo case 51 is attached to the operation support member 31 via a Jyo case pin 56.

[Detailed description of the invention]

The present invention relates to an improvement in a riveter, and more particularly to a riveter in which the attachment direction of the case attached to the head of the riveter can be easily changed horizontally or vertically at a displacement angle of about 90 degrees.

In conventional riveters, the case is fixed only in one direction, either horizontally or vertically.
Two types of riveters had to be used depending on conditions such as the shape of the area to be riveted.

In order to solve this inconvenience, various types of riveters have recently been proposed that allow the same riveter to reposition the jig case horizontally and vertically.

As one of the
57-36350 Riveter and Jitsugan No. 1983-
There is a riveter shown in No. 147683 (Figures 23 to 30).

However, in these riveters, when switching the case horizontally and vertically,
To allow movement of the Joe case, it was necessary to remove the fixing pins and other mounting members from the riveter body. As described above, removing parts not only makes the switching work troublesome, but also poses a risk of dropping the removed parts when working at a high place.

SUMMARY OF THE INVENTION An object of the present invention is to provide a riveter that can change the position of the jig case in a one-touch manner without removing any parts as described above.

The riveter according to the present invention is provided with a fixing means for fixing the Joe case to the lever at two different positions, and the fixing means is engaged and released by operating a cam lever pivotally connected to the lever. It is characterized by:

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

In FIGS. 1 to 4, reference numeral 11 denotes an elongated frame body, and a grip portion 12 is formed on the free end side and a box-shaped head frame 13 is formed on the tip side. This head frame 13 has both side walls 18, 1 extending parallel to the longitudinal direction of the lever.
8. It consists of a front wall 19 that connects these side walls 18, 18 at their front edges, and a lower wall 19' that connects the lower end edges of both side walls 18, 18.

From the front wall 19 to the front part of the lower wall 19',
A continuous L-shaped groove 17 is formed. As will be explained in detail later, this L-shaped groove
1 is provided so that it can be switched between a horizontal mounting position and a vertical mounting position. At both ends of the L-shaped groove 17, screw holes 15 and 16 with a diameter larger than the width of the groove are provided so that the case can be fixed in the horizontal and vertical directions. It has a hole-like appearance.

21 is a lever pivotally attached to the frame body 11. Like the frame body 11, the lever 21 has a grip portion 22 formed at its free end.
Following 2, both side walls 21', 2 facing parallel to each other
1' extends toward the tip side, and these side walls 21', 21'
The upper edges of the levers 21 are connected to each other by an upper wall 21'', and the upper wall of the lever 21 is cut off and opened upward. The pivot shaft 71 is inserted into the shaft holes 14, 14 provided in both side walls of the head frame 13 of the frame body and the shaft holes 23, 23 provided in the tips of both side walls of the lever 21, 11 and lever 21 are connected by this pivot shaft so as to be relatively rotatable.

Reference numeral 73 is a dogleg-shaped spring bent through a central coil portion, and this spring 73 is inserted between the lower wall 19' of the frame body 11 and the upper wall 21'' of the lever 21, and is The frame body 11 and the lever 2 are held by a pin 72 whose both ends are inserted into the holes 27, 27 of the lever 21.
1 is always urged to expand by this spring 73.

At the tips of both side walls 21', 21' of the lever 21,
An arcuate long hole 2 is formed around the shaft holes 23, 23.
4 and 24 are formed, and these act as long holes for rotation for an operation support member 31 of the Joe case, which will be described later. Further, at the tips of both side walls of the lever 21, there are slots 2 for sliding the fixing pin 74.
5, 25 are provided, which make it possible to fix the actuating support member to the lever.

The operation support member 31 of the Jyo case consists of two circular side plates 32, 32 that are arranged opposite to each other at a constant interval.
are connected by a connecting pin 37 at one point in the circumferential direction. These side plates 32,
At the center of 32 is a pivot shaft 7 for connecting the frame and the lever.
Insertion holes 33, 33 for inserting the case connecting pin 77 are formed separately. Further, on the circumference of these side plates, two sets of notches 34, 34 and 3 are bored at 90 degrees with the insertion hole 33 as the center.
5 and 35 are provided opposite each other, and a fixing pin 74 engages with these notches as described later.

The fixing pin 74 may have any shape, but as shown in FIG. 1, if a stepped portion is provided with a large diameter at both ends in the long axis direction and a small diameter at the center, a plate spring can be formed in the center. 75 are engaged, and the fixing pin 74 will not shift in the longitudinal direction and come out of the slide slot 25.

A cam lever 41 is used to temporarily remove the fixing pin 74 from the operation support member 31. This cam lever 41 has two side plates 42 , 42 arranged opposite to each other at a constant interval, connected by a connecting plate 43 at one point on the upper edge thereof, and a long operating lever 48 extending from one side plate 42 . It is set up. Each side plate 42 consists of a tip 42' having a substantially circular shape and a hanging piece 42'' provided on the operating lever 48 side with a gap therebetween. 44. This circular hole 44 has a pivot shaft 71 that pivotally connects the frame 11, lever 21, and actuating support member 31.
Acts as an insertion hole for. The peripheral edge of the tip portion 42' on the hanging piece 42'' side forms pushing cams 45, 45 for pushing the fixing pin 74 out of the notches 34, 34, 35, 35 of the operation support member 31. The side edges of the hanging pieces 42'' on the tip 42' side constitute pushing cams 46, 46 for pushing the fixing pin 74 into the notches 34, 34, 35, 35 of the operation support member 31.

FIGS. 3 to 5 show the case 51 mounted downward, with the frame 11 and lever 21 closed.

To explain the state of assembly of each member, the operation support member 31 is inserted between both side walls at the tip of the lever 21, and the cam lever 41 is placed over the tip of the lever from the outside. Insert the whole into the head frame 13, and
are sequentially inserted into the shaft hole 14 of the head frame 13, the insertion hole 44 of the cam lever 41, the shaft hole 23 of the lever 21, and the insertion hole 33 of the actuation support member 31, thereby removing the frame 11, the lever 21, and the cam lever 4.
1 is assembled so as to be rotatable about the pivot shaft 71, and the actuation support member 31 is rotatably held between both side walls of the tip of the lever 21.

In the above assembled state, as shown in FIG. The fixing pin 74 is interposed in a notch 47 between the push cam 45 and the pushing cam 46, and the fixing pin 74 is located in the notch 35 on one side of the operation support member 31.
is engaged in. As the fixing pin 74 engages with the notches 35, 35 in this manner, the operation support member 31 is held unrotatable with respect to the lever 21.

A jacket member 52 is disposed at the bottom of the jacket case 51, and a spring 54 is disposed above the jacket via a jacket shear 53, and the spring 54 always urges the jacket 52 downward. 55 is a seat that the upper end of the spring comes into contact with, and 56 is a case pin.

In the case of this embodiment, an elongated case connecting rod 57 is inserted into the opening of the case and fixed by the case pin 56. A ring member 58 is provided at the upper end of the Jyo case connecting rod 57, and a Jyo case connecting pin 77 is attached to this ring member.
Both protrusions of the Jyo case connecting pin 77 are inserted into the insertion holes 36, 36 of the operation support member 31, and the JYO case 51 is thus rotatably held by the operation support member 31 via the JYO case connection rod 57. .

Reference numeral 61 is an outer cylinder for inserting the case, and is formed so that the case 51 can be inserted into the outer cylinder, and a nose piece 63 is screwed to the tip.

The external cylinder for inserting the case has a male threaded part 62 on the outer periphery of the base, and can be screwed into the screw holes 15 and 16 of the head frame 13.

Next, a procedure for changing the mounting direction of the Jyo mechanism from the vertical direction to the horizontal direction will be described.

First, FIG. 6 shows a state in which the outer cylinder 61 for fitting the case has already been removed from the head frame 13. As shown in FIG. In this state, the fixing pin 74 is biased rightward in the figure by the leaf spring 75, and the actuating support member 31 is pressed against the lever 2.
1 and is held unrotatable. At this time, the operating lever 48 of the cam lever 41 is clamped between the head of the set screw 29 and the side wall 21' of the lever 21. When the fixing pin 74 is rotated and pushed up in the direction shown by the arrow in FIG.
It moves leftward in the figure along the arrow , and separates from the notches 35, 35 of the operation support member 31, as shown in FIG. In this state, the operation support member 31 is not fixed to the lever 21. next,
By rotating the Joe case 51 counterclockwise around the pin 77 and pressing the pin 77 to the left, the operation support member 31 to which the pin 77 is attached is rotated counterclockwise, and as shown in FIG. As shown, the notches 34, 34 of the actuation support member 31 are brought to a position where they overlap with the sliding slots 25, 25 of the lever 21. During this movement, the connecting pin 77 moves along the rotation slots 24, 24 of the lever 21. Next, the cam lever 4 which was in the pushed up state
1, the fixing pin 74 is pushed into the notches 34, 34 of the actuation support member 31 by the action of the leaf spring 75, as shown in FIG. be done. In addition, even if the leaf spring 75 loses its elasticity and stops working due to long-term use, the cam lever 4
Since the fixing pin 74 is pushed into the notches 34, 34 by the first pushing cam 46, 46, no inconvenience occurs. Finally, attach the outer cylinder 61 to the screw hole 15.
If you screw it on, the jyo mechanism will be maintained in the horizontal direction.

By performing the above procedure in reverse, the mounting method of the Jyo mechanism can be changed from horizontal to vertical.

When the lever 21 is rotated around the pivot shaft 71 while maintaining the jyo mechanism in the vertical or horizontal direction in this manner, the jyo case reciprocates and the riveting work can be performed.

11 to 13 show other embodiments of the present invention. In this embodiment, instead of inserting the connecting pin 77 into the insertion holes 36, 36 of the operation support member 31, notches 59, 59 are provided on both left and right sides near the upper end of the case connection rod 57, and the operation support member 31 is provided with angular protrusions 38, 38 that sandwich the bottoms of the notches 59, 59 from the left and right sides.

The interval between the protrusions 38, 38 is formed to be very slightly larger than the interval between the bottom surfaces of the notches 59, 59, and by holding the notches 59, 59 between the protrusions 38, 38, the Jyo case can be moved horizontally. It is also possible to drive rivets while maintaining the vertical direction.

In the above embodiment, the Jyo case 51 was attached to the actuation support member 31 via the narrow connecting rod 57, but instead of this, the Jyo case may be directly attached to the actuation support member 31 via the Jyo case pin. I do not care. In addition, instead of attaching the Jyo case to the operation support member via the Jyo case pin, notches are provided on both left and right sides near the upper end of the Jyo case so that the bottom is flat, and as shown in FIGS. 11 and 12, As shown in the figure, the operation support member may be provided with an angular protrusion so as to sandwich the bottom of the notch of the case from the left and right sides.

In this case, the jo case is housed within the head frame, and the width of the head frame is increased by the width of the cam lever.

On the other hand, if the case 51 is disposed outside the head frame 13 using the narrow connecting rod 57 as in the embodiment described above, the width of the operation support member 31 can be made smaller than that of the case 51. As a result, the width of the frame 13 does not become too large, and the distance to the tip of the case is sufficiently long, making it easy to perform riveting work in narrow places.

As described above, the riveter according to the present invention can switch the jyo mechanism horizontally or vertically at any time with a simple operation, so it is possible to adapt to a wide variety of shapes and other conditions of the place to be riveted, and to This can significantly contribute to improving the efficiency of punching work.

[Brief explanation of the drawing]

FIG. 1 is a partially cutaway exploded perspective view of a riveter according to an embodiment of the present invention, FIG. 2 is a perspective view of a head frame 13, and FIG. 3 is a partially cutaway front view of the riveter. Fig. 4 is a partially omitted plan view, Fig. 5 is a vertical sectional view taken along line V-V in Fig. 4, and Figs. 6 to 10 show the process of changing the arrangement of the Jyo mechanism. FIG. 6 is a longitudinal cross-sectional view of the main parts, and FIG. 6 shows the state in which the outer cylinder for inserting the case is removed, FIG. 7 shows the state in which the cam lever 41 is pushed up, and FIG. 8 shows the state in which the operation support member 31 is FIG. 9 shows the state in which the fixation of
Fig. 10 shows the state in which the is moved in the horizontal direction.
11 shows a state in which the cam lever 41 is pushed down and the operation support member 31 is fixed, FIG. FIG. 13 is a plan view showing the operation support member 31 and pivot shaft 71 of the embodiment shown in the figure, and a perspective view of the case 51 and the connecting rod 57 of the embodiment shown in FIG. 11. Explanation of symbols, 11... Frame body, 13...
Head frame, 15... Female threaded part, 16... Female threaded part, 17... L-shaped groove, 18... Side wall, 1
9...Front wall, 19'...Lower wall, 21...Lever,
25...Elongated hole for fixing pin slide, 31...Jiyo case operation support member, 32...Side plate, 34
... Notch, 35 ... Notch, 41 ... Cam lever, 45 ... Cam, 51 ... Jyo case, 56
...Jyo case pin, 57...Connecting rod, 61...
...Outer cylinder for inserting the Joe case, 71...Pivot shaft,
74...Fixing pin.

Claims (1)

[Claims] 1. A riveter characterized by consisting of the following parts.