JPS5919707B2 - Portable opening/closing work tool - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a portable opening/closing work tool that can be widely used, such as scissors, pliers, strippers, etc., and particularly relates to a work piece such as a blade or a pin, and a tool for opening/closing the work piece. In addition to making the levers removable and replaceable, they can be smoothly stored inside the cover case when not in use.
In order to make it convenient and safe to carry, it was designed to be easily exposed outside the case when in use, so that it can be opened and closed correctly and easily.

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 examples shown in FIGS. These are a pair of left and right cover cases, each having a size and weight of , made of metal or preferably synthetic resin, and assembled so that they can be attached to and detached from each other in a virtually clasped position.

However, the left and right pair does not need to be correctly symmetrical,
As long as it can be assembled and disassembled, one may be in the form of a box and the other may be a lid plate.

Reference numeral 2 designates a long slide guide hole opened along the longitudinal center line in both side walls of the case 1, and has a length sufficient to accommodate a working heather, which will be described later.

Reference numeral 3 denotes a lever egress hole opened on both the upper and lower walls of the assembled case 1, and numeral 4 represents a piece egress hole opened on the front wall surface.
It acts as a relief to smooth the opening and closing action.

Reference numeral 5 designates a pair of upper and lower operating levers made of metal or preferably synthetic resin, each comprising a substantially disc-shaped disk portion 6 and a grip portion T extending rearward from the disk portion and facing each other and having a U-shaped cross section. A pivot shaft 8 is inserted into and removed from the center of the disk portion 6, so that both levers 5 can be rotated about the pivot shaft 8 so as to open and close each other.

Reference numeral 9 denotes a notch in which the mutually matching pivot bearings provided on the disk portion 6 correspond to the guide elongated hole 2 of the case 1, allowing the pivot 8 to slide.

The pivot 8 consists of a removable fastening body, for example, a bolt 10 and a camping nand 11 screwed onto the bolt 10, and the case 1
The guide slot 2 is slidably engaged with the guide slot 2 so as to extend horizontally through the guide slot 2.

Reference numeral 12 denotes a recessed stepped surface formed on the side wall surface of the case 1, and the head of the bolt 10 is engaged with this stepped surface, so that the slide along the guide elongated hole 2 is fixed.

Reference numeral 13 denotes a compression coil spring wound around the nut 11, and its suppressing force forces the bolt head into the concave stepped surface 1 of the case 1.
The case 1 is kept in close contact with the case 1 at all times so as to be restrained within the case 2.

Therefore, if the nut 11 is pushed in against this spring force, the bolt head will lift up from the concave stepped surface 12 and be released from the lock, so that the pivot shaft 8 of the fastening body can be inserted into the guide elongated hole of the case 1. 2, you can smoothly slide the slide.

Of course, the slide may be fixed by means other than those shown.

Further, reference numeral 14 is an integral part of the work piece, which is represented by a cutting blade of scissors, and is overlapped and crossed in a substantially X-shape. It is assembled and opened and closed by the lever 5.

15 is a helical spring that is always biased to push both pieces 14 outwards from the case 1 (in the vertical direction in the figure);
At the same time, it is wound around the pivot shaft 8, and at the same time, both ends thereof are inserted and locked into arm portions 16 extending rearwardly of both pieces 14.

In this case, each of the arm parts 16 of the piece 14 correctly faces the U-shaped interior of the grip part I of the lever 5, and receives the elastic force of the spring 150, so that the arm part 16 of the piece 14 faces the upper and lower wall surfaces of the grip part 7 facing each other. They are in a positional relationship where they are in constant contact due to internal force.

In other words, the piece 14 and its operating lever 5 are in an assembled state in which they are separate bodies and are operatively connected.

In order to resist the elastic force of the helical spring 15 and fix the lever 5 in the closed state (recessed state into the case), hook pieces 17 are respectively extended from the rear end of the grip portion 7. When the lever 5 is closed, the hook piece 17 is detachably engaged with a leaf spring 18 fixed to the case 1.

Reference numeral 19 denotes a support shaft for mounting the leaf spring 18, and a receiver for a case assembly bolt (not shown) is recessed into the cylinder shaft.

However, as long as the lever 5 can be kept fixedly closed,
Of course, the grip portion I may be removably locked in any position on the case 1 by means other than those shown.

For example, as shown in FIG. 7, a stopper piece 20 is provided inwardly protruding from the case 1, a relief notch 21 of this is opened in the grip part 7 of the lever 5, and the piece 1 is attached by a pivot 8.
4 is slid along the guide elongated hole 2, the arm portion 16 of the piece 14 passes through the stopper piece 20 while resisting the helical spring 15, and can be freely engaged with and disengaged from the hook piece 17 of the lever 5. It is also possible to engage with the lever 5 to fix and maintain the closed state of the lever 5.

According to this, by sliding piece 14,
Since the operation lever 5 can be closed and fixed together, the operability is excellent.

8 and 9 show a modification of the present invention, in which the opening/closing operation lever 5 of the workpiece 14 is pivotably held on the cover case 1 so as to be openable and closable without using a shaft.

That is, in the basic example shown in FIGS. 1 to 6, the pivot 8 of the piece 14 is used to open and close the lever 5, and the lever 5 is pivotally held in the case 1 by the pivot 8. In this modification, the disk portion 6 of the lever 5 has, for example, a rectangular cross section facing each other, and its outer peripheral wall surface is formed in an arc shape with a dog contact surface area, and the arc-shaped outer periphery of the disk portion 6 has improved strength. The wall surface is rotatably engaged with the corresponding arc-shaped inner circumferential wall surface of the case 10 so as to slide together stably.

The notch 9 is made large so as not to engage with the pivot 8 of the piece 14.

Even with such a configuration, the lever 5 is still pivotally supported to the case 1 so as to be openable and closable, and therefore belongs to the present invention.

Since the other configurations are substantially the same as those of the basic example shown in FIGS. 1 to 6, detailed explanation will be omitted.

Next, the opening/closing operation will be explained according to the basic example shown in FIGS. 1 to 6. In the usage state shown in FIGS. The lever 5, which is exposed from the top and bottom of the case 1, is
The opening/closing operation can be performed while grasping with fingers, and the piece 14, which is also exposed at the front, can be used to properly cut or apply other actions to the object.

Therefore, when carrying or storing the
As shown in the figure, the lever 5 is first squeezed and closed, and the case 1 is fixedly held by the grip part 7 through the engagement between the hook piece 17 and the plate spring 18.

Of course, at this time, the pieces 14 are also closed together.

Next, push in the nut 11 associated with the pivot 8, release the head of the bolt 10 from the concave stepped surface 12 of the case 1, and then slide the pivot 8 backward along the guide elongated hole 2 of the case 1. Let it happen.

Then, since the piece 14 is always held by the pivot 8 and is operatively connected to the lever 5 via its arm 16 and helical spring 15, the lever 5
The grip portion I is also used as a guide rail, and is restrained by the grip portion I to be in the closed state and stored in the case 1 in an embedded manner.

On the other hand, when converting from the unused state to the used state as shown in Figs. The conversion process can be carried out smoothly.

As described above, the portable opening/closing work tool of the present invention has a cover case 1 equipped with a pair of opposing pivot bearings and a sliding guide elongated hole 2, and a guide length of the case 1 in the middle part of the X-shaped intersection. A pair of workpieces 1 are assembled so as to be openable and closable by a pivot shaft 8 passing through a hole 2, and are constantly pressed and biased in the expansion direction by a spring 15 wound around the pivot shaft 8.
4, and a pair of piece opening/closing operation levers 5 which are operatively connected to the piece 14 so as to always bear the pressing force of the spring 15, and which are pivotally supported to the case 1 so as to be freely openable and closable.
The piece 14 is inserted into the case 1 while the operating lever 5 is closed, and the pivot 8 of the piece 14, which is closed by the lever 5, is slid along the guide elongated hole 2 of the case 1. Since the piece 14 is also set to be recessed into the case 1, the operation is as simple as squeezing the lever 5 to close it and sliding the pivot 8 of the piece 14 along the guide elongated hole 2 of the case 1. can keep work tools out of use,
In this state, the generally dangerous work piece 14 is stored in the case 1 in a buried state, so it is safe, and together with the fact that the lever 5 is also buried in the case 1,
Portability can also be achieved.

Moreover, by sliding the pivot 8 in the opposite direction and releasing the fixation of the lever 5 from the closed state, the working tool can be smoothly used, and the piece 14 can be moved to the pivot 8.
Because piece 1 is held to case 1 by
4 allows stable cutting and other operations.

Furthermore, by taking out the pivot 8 from the case 1 and disassembling the case 1, the piece 14 and the lever 5 can be easily attached and detached, and even if it falls over, it can be opened and closed unlike a conventional sliding canter knife. As a tool form,
It can be said that it is a new invention suitable for practical use, as it is a mechanism that can be used not only for scissors but also for pliers, strippers, and other various types of work.

[Brief explanation of drawings]

The figures illustrate the present invention applied to scissors, with Figure 1 being a side view of its appearance in use, Figure 2 being a sectional side view,
FIG. 3 is an enlarged sectional view taken along the line X-X in FIG. 2, FIG. 4 is a side sectional view showing the process of conversion to an unused state, and FIG. 5 is a side sectional view showing the completed state of the conversion. Figure 6 is Y- of Figure 5.
7 is a partial side sectional view showing the first modification of the present invention, FIG. 8 is a side sectional view of the second modification, and FIG. 9 is a z- FIG. 2 is an enlarged cross-sectional view taken along two lines. 1...Cover case, 2...Slide guide long hole, 5...Opening/closing operation lever, 8...
...Axis, 14...Work piece.

Claims (1)

[Scope of Claims] 1. A pair of opposing pivot bearings includes a cover case 1 in which a slide guide elongated hole 2 for insertion is opened;
a pair of workpieces 14 which are assembled so as to be openable and closable, and which are always pressed in the expansion direction by a spring 15 wound around the pivot shaft 8;
a pair of piece opening/closing operation levers 5 which are operatively connected and connected to the case 1 and are pivotally held in the case 1 so as to be openable and closable; The portable opening/closing device is characterized in that by sliding the pivot 8 of the piece 14 closed by the lever 5 along the guide elongated hole 2 of the case 1, the piece 14 is also inserted into the case 1. work tools. 2. The mobile phone according to claim 1, characterized in that when the operating lever 5 is pivotally held in the cover case 1, the pivot 8 of the work piece 14 is not used as a pivot for opening and closing the lever 5. Opening/closing work tool. 3. In order to pivotally hold the operating lever 5 to the cover case 1, the arc-shaped outer peripheral wall surface provided on the disc portion 6 of the lever 5 is opened and closed without using a pivot to the arc-shaped inner peripheral surface formed correspondingly to the case 1. A portable opening/closing work implement according to claim 1, characterized in that the portable opening/closing work implement is capable of being engaged with each other. 4. When the operation lever 5 is in the closed state and inserted into the cover case 1, the lever 5 in the closed state and the case 1 that receives it are connected to the hook piece 17 provided on the grip part 7 of the former and the latter. The portable opening/closing work tool according to claim 1, wherein the portable opening/closing work tool is configured to be able to be fixed to each other by a detachable locking action with an attached leaf spring 18.