JPS5899981A - Portable opening and closing work tool - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a portable opening/closing work tool that can be implemented in a wide variety of ways, such as a scissor, a stripper, a plier, etc., and particularly relates to a work piece such as a blade thereof, and a method for opening/closing it. In addition to making it possible to attach and detach the lever to 30 degrees, when not in use, the work piece can be stored in the cover case or buried inside the lever that also serves as this, making it convenient and safe to carry. On the other hand, when in use, the work piece can be easily and smoothly exposed to the outside, and the work piece can be opened correctly and easily.

It was devised so that it could be closed.

Hereinafter, the specific configuration of the present invention will be explained based on the illustrated embodiment. The figure shows an example of application to scissors, and in the basic example shown in Figures 1 to 5, A pair of left and right cover cases that are large enough to be held, made of metal or preferably synthetic resin, and assembled so that they can be attached and detached from each other in a virtually clasped position.However, their symmetry is important. As long as it is not necessary and can be assembled and disassembled, one may be in the form of a box, and the other may be a mere cover plate.

(2) is a single slide guide elongated hole that is opened on both side walls of the case (1) so as to extend over its longitudinal center line, and the elongated hole (2) in at least one case fi+ is located at its front end. Part is JP-A-58- with pivot hole (3)! Similarly, the rear end of J9981 (2) is continuously opened as a lock hole (4) in a stepped large diameter circular shape. (6) is a lever hole that is opened on both the upper and lower walls of the assembled case tl;
61 is a piece exit hole also opened on the front wall,
Each serves as a relief to facilitate the opening/closing action of the operating lever and workpiece, which will be described later.

(7) A pair of upper and lower operating levers made of metal or preferably synthetic resin, consisting of a generally disc-shaped disc part (8) and an opposing grip part (9) with a U-shaped cross section extending rearward from the disc part (8). Each is equipped with: In that case, a slide guide slot (101) that can fit into the guide slot (2) of the case +11 is opened in one long side wall surface in the vertical direction r forming each grip part (9). The other side wall surface of the grip portion (9) is formed to be short in the vertical direction so as not to interfere with a pivot shaft (described later) that passes through the grip portion (9).

In addition, (Ill is a pair of work pieces represented by the cutting blade of scissors, etc., and the pivot axis 0) also serves as the pivot axis for opening and closing the lever (7), and the guide length of the lever (7) that matches each other. The piece (11) is suspended horizontally between the hole and the guide slot (2) of the case (1).The opening/closing pivot 0'4 of the piece (11) is, for example, a bolt θ moment and a nut as shown in the figure. Q4)
It consists of a removable screw fastener with a bolt (11
The straight surface of the oval neck is the case (1).
slide while engaging with the long guide hole (2), rotate the hole (H) 90 degrees, and connect the protruding arcuate surface of the neck α- with the pivot hole (3) or lock hole (4). By matching, the slide is fixed. However, as long as the above-mentioned slide and its fixation can be carried out, the bolt neck (1@) may be made rectangular, or the bolt head may be removably engaged with the side wall surface of the case f11, or other configurations may be adopted. Of course, it can be adopted.

(1~ is a helical spring that always pushes both pieces (II) open in the direction (vertical direction in the figure). It is wound around the pivot H, and both ends are directed toward the rear of both pieces (■). They are each inserted and locked into the extended arm part Qη.The arm parts αη of each piece face the U-shaped inside of the grip part (9) of the lever (7), and Under the force, the upper wall surface of the grip part (9) and the lower wall surface of the grip part (9) are constantly in contact from inside.In other words, the piece (
II) and its operating lever (7) are separate detachable parts 61), but are operatively connected via a spring (14), and therefore the pivot (1'4 is the center). The lever (7) can then be used to open and close the sleeve (11).The teat is a bushing loosely inserted into the bolt shaft.

Figure 6.7 shows a first modification of the present invention, in which the workpiece (opening/closing operation of the river/<-(7)) is opened/closed into the cup (-case +11) without using the shaft. In other words, in the basic example above, the lever (7)
In opening and closing, the pivot U'4 of the piece (11) is also used, and the pivot (1'4)
1 is pivotally held on the case fl+, but in this modification, the disc part (8) of the lever (7) is shaped like a cross section facing -bl, for example, and its outer peripheral wall surface is designed to have a large contact surface area. The disk portion (8) is formed into a circular arc shape, and the circular arc-shaped outer peripheral wall surface of the disk portion (8) with improved strength is freely rotatably engaged with the corresponding circular arc-shaped inner peripheral wall surface of the case 111. I'll try to match it. Other configurations are from 1st to
Since this is substantially the same as the basic example shown in FIG. 5, the corresponding symbols will only be written in the sixth and fifth drawings, and detailed explanation thereof will be omitted.

Also, Figures 8 to 10 show a second modification of the present invention, in which the workpiece (!) opening/closing operation lever (7) is itself a piece (which also functions as a cover case for storing the river). By doing so, a separate cover case i from these
I'm missing l+. That is, in the basic example and the first modification, the piece (river) is configured to be immersed in the cover case 111 which is separate from the lever (7),
In this second modification, when the upper and lower pair of levers (7) are closed, a hollow cover case is formed by itself, and the piece (11) is inserted into the inside thereof. Even with this configuration, both the lever (7) and the piece (river) are connected to the opening/closing axis a.
It is the same in fundamental principle as the above basic example in that it is simultaneously closed by sliding the long guide hole f101 of the lever (7), and has the main parts of its structure in common. . In addition, the other configurations are as follows.
Figure 5 is substantially superior to the basic example of JP-A-58-99981 (3), so we will only write the corresponding symbols in Figures 8 to 10 and omit detailed explanation thereof, but the above This second modification also applies to the configuration of the first modification.
Needless to say, modifications can be applied.

Next, to explain the opening/closing action according to the basic example shown in Figs. 1 to 5, in the usage state shown in Figs. The pivot hole (3) is penetratingly supported by the guide elongated hole (2) in the case +11 and occupies the front end of the guide slot (2) in the case +11.
Since the case (1) is held fixed and non-slidable, it can be opened and closed by grasping the levers (7) exposed at the top and bottom of the case (1) with your fingers, and the piece (11) also exposed at the front allows you to open and close the case (1). Ability to properly cut and apply other effects to objects.

Therefore, when carrying or storing the
As shown in the figure, the pivot H is rotated by 90 degrees, for example, to enable it to slide along the guide elongated hole (2) of the case il+, and then to slide rearward. Then, the piece (9) that is assembling the pivot shaft passes through the guide slot (2) of the lever (71) and the matching guide slot (2) of the case (1). Therefore, by the slide, both the lever (7) and the piece (river) are closed at the same time, and the piece (river) is automatically immersed into the case (1).In that case, the piece ( II) is correctly slid by using the grip part (9) as a guide rail through the contact between the arm part 0η and the grip part (3) of the lever ()), and here, one-step one-touch It is possible to obtain a non-use state by operation.Then, the axis 0
For example, rotate it 90 degrees again and insert the lock hole (4).
By fixing it so that it cannot slide, it can be locked when not in use.◎The locking means are as follows:
Of course, it is possible to adopt other elements than those shown in the drawings. On the other hand, when converting from the non-use state to the fan state shown in Fig. 4.5, it goes without saying that you should perform the operation in the opposite direction to the above, and if you do that, the reduction will be % -+7 ) and piece (11) are simultaneously exposed from case f1). Even in the configuration of the second modified example in which the lever (71) is also used as a cover case, such conversion effect is substantially the same as that described above.

As described above, in the portable opening/closing work tool of the present invention, the disassembleable cup (-case (1)) equipped with the guide elongated hole (2) is provided.
is pivotally supported to the case 11+ so that it can be opened and closed freely, and the guide elongated hole (2) of the case (1) is attached to the grip part (9).
<-+7
1, and a working piece (river) which is operated to open and close around a pivot (lino) by its lever (7),
/y-x 111 By sliding the pivot f12, which is passed through both the guide slots 121111m of the knee 17), into the guide slots 121 +10), Leno<-+? Since it is designed to close both L and piece (11) at the same time and immerse it into the case [11], with a one-touch operation just by sliding its axis +11J, Renoku- (7) and piece (11) can be closed. 11
) Anyone can easily convert between the used and unused states of both of them, and in their unused state, Reno (2 (7) and Piece (t + 1 are also stored in case + 11) Therefore, it is extremely safe and extremely easy to carry, pack, and transport.

Also, the cover case (1) is omitted and the operation lever (7)
In addition to the above-mentioned effects, if the case is configured to have an alternative function and the internal he-piece (■) formed by its closure is housed in the same manner as above, there is a problem due to the need for the case [1]. Since it is possible to reduce weight and cost, it is more suitable for practical use. Furthermore, as is clear from the illustrated Φ embodiment, case +11 and piece Q
l) It is easy to make all the levers (7) in a symmetrical form, and in this sense, the mass production effect can be expected to the maximum, and of course the assembly and pieces (river and lever (
7) can also be easily replaced. In any case, unlike conventional slide retractable cutter knives,
The opening/closing mechanism can be applied not only to scissors as shown in the figure, but also to strippers, pliers, and other work tools, making it a novel invention worthy of recommendation.

[Brief explanation of drawings]

The figure illustrates the present invention applied to scissors, and Figure 8g1 is an external side view showing its usage condition, and Figure 2 is A of Figure 1.
- An enlarged sectional view taken along line A, Figure 3 is a sectional view taken along line B-B of Figure 2, Figure 4 is a side sectional view of the unused state corresponding to Figure 3, and Figure 5 is a sectional view of Figure 4. FIG. 6 is an enlarged sectional view taken along line C-C, FIG. 6 is a side sectional view showing a first modification of the present invention corresponding to FIG. 3, and FIG. FIG. 8 is a side sectional view of the second modified example, FIG. 9 is a side sectional view of the second modified example corresponding to FIG. 4 in an unused state, and FIG. FIG. fll・・・・・・・・・Cover case (21tlol
...Slide guide long hole (7) ...
・・Opening/closing operation lever (9) ・・・Grip part (11) ・・・Work piece (1″4...
...Axis patent applicant Takaaki Aoki IJ: Representative patent attorney Kenji Yamashita: .
",E+','li 3rd [4.

Claims (1)

[Claims] 1. An operation lever that also serves as a cover case, which has a guide slot in the grip part and is attached to a pivot so that it can be opened and closed, and the operation of opening and closing the cover case by using the lever that also serves as the pivot. By sliding the pivot along the long guide hole of the lever, both the lever and the piece are simultaneously closed at once, and the closed lever is used as a cover case to immerse the internal snake varnish. A portable %-type % characterized by the following settings: 2, a removable cover case equipped with a guide slot;
The operating piece is pivotally held in the case so as to be openable and closable, and has a guide slot in its grip that can fit with the guide slot (-), and a workpiece that is opened and closed about the pivot by the lever. By sliding the pivot, which is passed through both the guide slots of the case and the lever, along the guide slots, both the lever and the piece are closed at the same time and inserted into the case. 3. A portable opening/closing work tool characterized by being set as follows. 3. In pivoting and holding the operating lever to the cover case, the pivot of the work piece is also used as the pivot for opening/closing the lever. Scope of Claims/Second Claims
Portable opening/closing work tools described in Section 1. 4. A patent claim characterized in that, when the operating lever is pivotally held in the cover case, the arcuate outer circumferential wall surface of the lever is engaged with the corresponding inner circumferential wall surface of the case so that it can be opened and closed without using a pivot. Scope/Portable opening/closing work tools listed in Section 2 @