JPS6178526A - Jaw part structure of riveter - Google Patents

Abstract

PURPOSE:To improve a workability by arranging freely movably vertically the outer cylinder piercing a long hole on the outer peripheral wall on the fitting part of a main body and by pressing a jaw case to the outer cylinder bottom side via a spring. CONSTITUTION:An outer cylinder 5 is fitted into the engaging aperture 2 of the frame 1 of a main body and the long hole 7 on the outer peripheral wall is fitted to a jaw case pin 8. The outer cylinder 5 is therefore made movable vertically against the fitting part 4 of the main body. A jaw case 9 is inserted into the inner part of the outer cylinder 5 and a jaw 10, jaw pusher 11, etc. are arranged in said inner part. A presser part 20 pushes the outer cylinder 5 down to the lower part by the leg closing motion of the movable lever of a riveter, but the jaw case 9 is not descended due to the pin 8. Namely the outer cylinder 5 is descended relatively to the jaw case 9, separating a nose piece 6 and the jaw 10. Consequently a mandrel is pulled and broken and the rivet fastening is completed. The workability is elevated with said method.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a jaw structure of a vine used for fastening work of a blind retardant.

(Prior Art) Conventionally, the structure of the jaw portion of this type of riveter is known, for example, as described in Japanese Utility Model Publication No. 45-23918. That is, in this conventional device, a jaw case having a jaw pressed downward by a jaw presser spring inside the tip part is housed in an outer cylinder provided integrally with the riveter main body, and the jaw is lifted by the upward movement of the jaw case. is configured to be in a closed state so as to engage the mandrel of the blind retrieval head.

(Problems to be Solved) However, in the prior art, the opening and closing operations of the jaws are performed by the vertical movement of the jaw case, and the closing operation of the jaws is configured to be performed when the jaw case is raised. For example, when the jaw structure is used in a hand riveter, a movable lever for moving the jaw case up and down is provided above the lever on the riveter body, and when the movable lever closes the legs, The jaw case must be configured so that the jaws can be closed, and therefore, when using the hand riveter, the upper movable lever must be closed by pressing down with the thumb. The position of the legs is unnatural, making the above-mentioned leg-closing operation extremely difficult and extremely tiring.
The workability was extremely poor and a major problem arose.

In other words, in this type of lever operation, for example, a fixed handle grip such as a bicycle brake lever is supported with the thumb side, and the other movable lever is operated with the other four fingers, depending on the grip condition and force applied. Despite being optimal in this regard, there has been no existing jaw structure that can accommodate such lever operations.

In addition, conventionally, not only when constructing a hand riveter as described above, but also when constructing a near riveter, etc., the jaw case housed in the outer cylinder is raised by air pressure etc. against a load. Since the means for doing this is very complicated, it is extremely difficult to manufacture automatic mechanization such as the near riveter or befter, and there have been major problems in its manufacturability.

The present invention was invented with the aim of solving the above-mentioned problems, and its purpose is to simply attach the movable lever below the lever of the riveter body when constructing and manufacturing a hand riveter. By arranging the movable lever to close the legs, it is possible to perform the fastening work of the rejoint, and the workability is very good, and it is possible to automate a near riveter or the like, or configure a vec. , in the case of manufacturing, it is easy to manufacture.

(Means for Solving the Problems) The present invention has been constructed to solve the above-mentioned conventional problems by developing a jaw structure with a completely new configuration. The fitting part 4 has a fitting hole 2 and a jaw case pin holding hole 3 perpendicular to the fitting hole 2. An outer cylinder 5 for storing a jaw case, which has a bore hole 7 drilled along the direction, is fitted into the long hole 7 of the outer cylinder 5, and a jaw which is inserted into the jaw case pin holding hole 3 of the riveter main body l is inserted into the elongated hole 7 of the outer cylinder 5. By inserting the case pin 8, the outer cylinder 5 is attached to the attachment part 4 of the main body 1 so as to be able to move up and down, and the jaw case pin 8 is inserted into the through hole 21 of the outer circumferential wall by being housed in the outer cylinder 5. A jaw case presser spring 15 is housed between the upper part of the outer cylinder 5 and the upper part of the jaw case 9 in order to press the jaw case 9 inserted through the jaw case 9 to the bottom of the outer cylinder 5.

(Function) Therefore, in the jaw part structure of the riveter having the above configuration, when the outer cylinder 5 mounted on the mounting part 4 of the riveter main body 1 is pressed downward, the outer cylinder 5 is drilled into the outer circumferential wall. The elongated hole 7 provided therein slides down along the jaw case pin 8, but on the other hand, the jaw case bin 8 is inserted into the through hole 21 of the jaw case 9 housed in the cough sleeve 5. Since it is fixedly provided to the main body frame 1, there is no possibility that it will descend along with the outer cylinder 5. Therefore, the downward movement of the outer tube 5 causes the same effect as the upward movement of the jaw case 9 relative to the outer tube 5, and as a result, the jaws housed inside the jaw case 9 are closed. That's what happens.

(Example) Hereinafter, embodiments of the present invention will be described according to an example shown in the drawings.

That is, to explain the case where the jaw part structure according to the present invention is used in a handlebar, FIG. 1 and FIG.
In the figure, reference numeral 1 indicates a main body frame (riveter main body) which is provided with a lever part [9] at the rear end, and a fitting hole 2 is bored at the tip of the main body frame l, and a fitting hole 2 is provided at the tip of the main frame l. A mounting portion 4 is provided by penetrating a jaw case pin holding hole 3 perpendicular to the use hole 2. 5 indicates a cylindrical outer cylinder having a nose piece 6 attached to the bottom tip and a long hole 7 extending in the axial direction formed in the outer circumferential wall;
The extra-nuclear M5 is inserted into the insertion hole 2 of the main body frame 1, and the jaw case pin 8 inserted into the jaw case pin holding hole 3 is inserted into the elongated hole 7 and attached to the mounting part 4. It is attached so that it can be moved up and down. Reference numeral 9 denotes a jaw case housed inside the outer cylinder 5 with the jokel spin 8 inserted into a through hole 21 bored in the upper part of the outer circumferential wall. ．．
Jaw non-ya 11, pusher spring 12. and the spring cap 13 are housed, respectively, and the jaw 1 is closed.
o is configured so as to come into contact with the bottom slope 14 of the jaw case 9 by the elastic force of the pusher spring 12. Reference numeral 15 denotes a pressing cap 1 attached to the upper part of the outer cylinder 5.
6 and a jaw case camp 17 separately fitted to the upper part of the jaw case 9, which is housed inside the outer cylinder 5 and in contact with both the jaw case camp 17. 9 outside M5
It acts to press the bottom side of the. Reference numeral 18 denotes a movable lever pivotally attached to the main body frame 1 so as to be located below the lever part 19 of the main body frame 1, and the tip of the movable lever 18 has a pressing cap 16 on the upper part of the outer cylinder 5. A pressing portion 20 for pressing is formed.

The present embodiment has the above-mentioned structure, and its usage and operation will be explained below. First, as shown in FIGS. 1 and 2 (when the movable lever 18 is in the open position
When the jaw 8 is not pressed at all, the jaw 10 is pressed against the bottom of the outer cylinder 5 by the elastic force of the jaw case holding spring 15.
is in an open state in contact with the nosepiece 6. Therefore,
Inserting the mandrel 23 of the blind retrieval head 22 to be fastened in the open state of the jaw IO,
Next, the movable lever 18 is closed as shown in FIG. Note that the leg closing operation of the movable lever 18 can be performed by positioning the guard side on the lever part 19 of the main body frame l and gripping the movable lever 18 with the other four fingers. This means that the operation can be performed very smoothly. As a result, the outer cylinder 5 is pressed downward by the pressing portion 20 of the movable lever 18 due to the leg closing operation of the movable lever 18, but the jaw case 9 housed in the outer cylinder 5 is not attached to the main body frame 1. The inserted jaw case pin 8 is inserted into the through hole 21.
As shown in the figure, the outer cylinder 5 is lowered with respect to the jaw case 9 and both the nose piece 6 and the jaw 10 are separated from each other. The lO is brought into a closed state by the pressing force of the pusher spring 12, firmly gripping the mandrel 23, and further, the mandrel 23 is pulled and broken by the downward movement of the outer cylinder 5 by the movable lever 18, and the brine collector is opened. This concludes the conclusion of No. 22. Furthermore, after the tightening work is completed, when the movable lever 18 is released from the hand, the outer cylinder 5 is raised by the volatile force of the jaw case holding spring 15, and the jaw case 9 is positioned at the bottom of the outer cylinder 5. By returning to the state and opening the jaw 10, the broken pieces of the mandrel 23 held by the jaw 10 are pre-drilled into the showcase pin 8, jaw case cap 17, pressing cap 16, main body frame 1, etc. The liquid is discharged from the upper part of the main body frame l through a mandrel discharge hole formed by a mandrel.

In addition, when replacing or maintaining the parts inside the outer M5, the outer FF15 can be easily removed by removing the jaw case pin 8 from the main body frame 1.
The above-mentioned parts replacement work etc. (can be easily done with candy).

In the above embodiment, the case where the jaw part structure according to the present invention is used in a hand riveter is explained, but as is clear from the above embodiment, the rivet fastening operation is performed by pushing the outer cylinder 5. In order to perform the work of simply lowering the outer cylinder 5, for example, when constructing an air reverberation system, an actuator that performs reciprocating motion using air pressure is provided at the upper part of the outer cylinder 5, and the outer cylinder 5 is lowered by the actuator. All you have to do is configure it to make it work. Also near bettor
The same applies not only to , but also to other electric riveters, etc.

Further, in the above embodiment, the attachment part of the glue belt main body for attaching the outer cylinder is constructed as one piece, but the present invention is not limited to this, and for example, as shown in FIG. 4(A), (
As shown in b), there is a separate insertion hole 2a in the riveter main body 1a.
A guide holder 24 having a jaw case pin holding hole 3a may be attached by screwing or the like to form the attachment part 4a, and the outer &J5 may be attached to the guide holder 24. It should be noted that, as shown in FIG.
If the mounting height H of the guide holder 24 can be changed freely by providing the above, for example, in a hand riveter, the initial leg opening angle α of the movable lever 18a when starting the rivet fastening work can be freely set. This provides the advantage that the lever can be easily gripped.

Further, in the above embodiment, the jaw case camp 17 is provided at the upper part of the jaw case, and the jaw case presser spring is brought into contact with the jaw case cap, but the present invention does not require the jitter case cap. There is no problem even if the jaw case presser spring is configured to directly contact the upper surface of the jaw case.

Furthermore, the present invention is not limited to the specific structure of the outer cylinder, but is, for example, as shown in FIG. 25, and the operating state of the jaw 10 can be observed from the outside through the window hole 25. By providing the window hole 25, the mandrel of the blind rivet can be The fN of chucking can be confirmed. Further, it is not necessary to attach the nose piece to the bottom of the outer cylinder, and the design may be changed so that the bottom of the outer cylinder itself comes into contact with the tip of the jaw.

In addition, the present invention covers not only the specific shapes of the main body frame and the movable lever, but also the specific shapes of the jaw case housed in the outer cylinder, the jaw case presser spring, and each component housed in the jaw case. All of the above can be freely modified within the scope of the present invention.

(Effect of the invention) As mentioned above, the present invention is designed to liberate jaws.

The riveter is fixed to the riveter body, and an outer cylinder housing the jaw case is provided to move up and down with respect to the riveter body, and the rivet can be fastened by lowering the outer cylinder. When using this as a hand riveter, the movable lever for lowering the outer cylinder is placed below a portion of the fixed lever on the main body side, the cough fixed lever is supported by the thumb side, and the movable lever is It can be gripped with the other four fingers, and can be easily configured to perform rivet fastening work by closing the movable lever.As a result, workability is significantly improved compared to conventional hand riveters. It has a particularly remarkable effect of being able to

Further, in the present invention, since the rivet fastening work can be performed by simply lowering the outer cylinder as described above, the outer cylinder is lowered using a driving source such as air pressure or electricity. By providing operating equipment, it is possible to easily manufacture mechanized ventors, i.e., air regenerators, and electric riveters, which have good working efficiency and have the great effect of allowing the use of tsutars to spread widely to the general public. .

As described above, the present invention has the above-mentioned excellent effects by developing a new jaw structure that is completely different from the conventional structure in which the outer cylinder is fixed and the jaw case is movable. The tube can be easily attached and detached from the main body of the Belata, making it extremely easy to replace parts and perform maintenance and inspection, which has great practical value.

[Brief explanation of drawings]

1 and 2 show this embodiment, FIG. 1 is an enlarged sectional view of the linear section taken along the line A-A in FIG. 2, and FIG. 2 is a side sectional view showing the overall structure of the handle handler. FIG. 3 is a side sectional view showing its operating state. FIG. 4 shows another embodiment, in which FIG. 4(a) is an enlarged sectional view of the line BB in FIG. 4(b), and FIG. 4(b) is a front view showing the whole. Fig. 5 shows another embodiment, Fig. 5 (a) is a front view of the main part,
FIG. 5(B) is a cross-sectional view of the C-C linear portion in FIG. 5(A). ■... Riveter body 2... Fitting hole 3... Jaw case pin holding hole 4... Mounting part 5... Outer cylinder 7... Long hole 8... Noyo case pin 9...
... Jaw case I5 ... Jaw case holding spring I6 ... Pressing cap 21 ... Through hole Figure 1 II5 (A) C\J

Claims (1)

[Scope of Claims] 1. A riveter main body 1 having a mounting portion 4 formed by drilling a fitting hole 2 and a jaw case pin holding hole 3 perpendicular to the fitting hole 2 at the tip; The jaw case pin holding hole 3 of the riveter main body 1 is fitted into the elongated hole 7 which is inserted into the insertion hole 2 of the mounting portion 4 of the riveter main body 1 and is bored in the outer peripheral wall along the axial direction of the riveter main body 1. The jaw case pin 8 is inserted into the jaw case housing outer cylinder 5 which is vertically movably mounted on the mounting part 4, and the jaw case pin 8 is inserted into the through hole 21 of the outer peripheral wall. A jaw case presser spring 15 is provided between a pressing cap 16 on the upper part of the outer cylinder 5 and the upper part of the jaw case 9 in order to press the jaw case 9 housed in the outer cylinder 5 to the bottom side of the outer cylinder 5. A riveter jaw structure characterized by comprising: 2. The riveter jaw structure according to claim 1, wherein the mounting portion 4 is constituted by a detachable guide holder 24 that is separate from the riveter main body 1. 3. The riveter jaw structure according to claim 1, characterized in that a window hole 25 is formed in the bottom side wall of the outer cylinder 5 so that the bottom of the jaw case 9 can be observed from the outside.