JPS5927257Y2 - Portable opening/closing work tool - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a portable work tool that can be widely applied, such as scissors, strips, pliers, etc., and is particularly designed to allow the work pieces such as blades and pins to be replaced. At the same time, when not in use, it can be stored inside the cover case for safety and portability, and conversely, when in use, it can be smoothly exposed outside the case and can be opened and closed correctly and easily. It has been devised so that it can be performed with a so-called one touch.

Hereinafter, the structure of the present invention will be specifically explained based on the illustrated embodiment. The figure shows an example of application to a scissors, and in Figures 1 to 3, 1 is a grip that can be held with one hand. It is a cover case made of metal or preferably synthetic resin, and is assembled in a manner that can be disassembled into a state similar to that of a so-called Japanese confectionery.

2 is the assembly screw. However, it does not need to be symmetrical, and as long as it can be assembled and disassembled, it may be, for example, in the form of a complete box, and the other side may be a mere cover plate.

Reference numeral 3 designates a slide guide elongated hole opened along the longitudinal center line on both side walls of the case 1, and has a length sufficient to allow a working piece to be described later to be inserted into the case 1.

Reference numeral 4 denotes a piece egress/egress opening opened in both the upper and lower walls and the front wall in approximately the front half of the assembled case 1, and functions as an escape to facilitate the ejection/removal/opening/closing action of the work piece.

Reference numeral 5 designates a pair of locking protrusions that integrally protrude inward from the upper and lower wall surfaces of the case 1 near the rear end thereof, and fix and hold the slide of the work piece inserted into the case 1. .

Further, numeral 6 denotes a pair of work pieces, typified by the cutting blades of scissors, which are assembled via a pivot 7 so as to be openable and closable.

Reference numeral 8 denotes an opening/closing operation lever that extends directly behind both pieces 6, and a grip cover 9 made of rubber or synthetic resin is fixedly integrated with this lever.

In other words, the piece 6 is equipped with an opening/closing control lever 8 in its drinking portion, and the pair of left and right levers intersect in an X-shape as is clear from the figure, and at the midway point of the intersection, the pivot 7 allows It is assembled so that it can be opened and closed.

10 is a lock groove formed in the grip cover 9 of the lever 8, and when the heavy belt 6 in the case 1 is recessed,
It corresponds to the locking protrusion 5 of the case 1 in a detachable manner.

However, conversely, grooves and holes may be provided on the case 1 side, and all protrusions that engage and disengage from the grooves and holes may be provided on the piece 6 side.

11 always keeps piece 6 on the outside of case 1 (vertical direction in the figure)
It is a helical spring that is biased when pushed open, and the pivot 7
The two pieces 6 are wound around each other, and both separated ends thereof are inserted and locked in the middle of the levers of both pieces 6, respectively.

The pivot shaft 7 consists of a bolt 12 and a cap nut 13 that can be inserted into and removed from each other.
It is engaged with the elongated hole 3 so as to be slidable in the front-rear direction so as to extend horizontally through the body.

Therefore, along with the fact that the piece 6 with the lever 8 assembled in the middle of the intersection by this pivot 7 has an X-shape as described above, the fingertips of one hand holding the case 1 that also serves as a grip are As it is, the lever 8 related to the rear part of the piece 6 can be easily reached and opened and closed smoothly and lightly without loss of operating force. Since the force for closing the lever 8 is applied to the lever 8 while resisting the opening force, it is possible to effectively prevent the piece 6 from sliding back during use.

Reference numeral 14 denotes a recessed stepped surface formed on the side wall surface of the case 1, and the head of the bolt 12 is engaged with this, thereby fixing and holding the slide along the guide elongated hole 3. This locks the exposed state of the piece 6, so it can be opened and closed stably.

Reference numeral 15 denotes a compression coil spring wound around the nut 13, and the bolt 12 is always pressed against the case 1 so that the bolt 12 is restrained into the concave step surface 14 of the head case 1 by its pressing force.

As mentioned above, the pivot 7 is made up of a screw fastened body of a bolt 12 and a nut 13, and therefore, it is possible to adjust the pressing force by the biasing force of the spring 15 to be strong or weak depending on the degree of mutual fastening.

Therefore, if the Nand 13 is pushed in while resisting the elasticity of the spring 15, the head of the bolt 12 will be lifted from the recessed step surface 14 and the lock will be released, so the pivot 7 of the fastening body can be moved directly to the case. This allows for smooth sliding operation along the long guide hole 3 of No. 1.

Next, the opening/closing operation will be explained based on the above structure. In the operating state shown in FIGS. 1 to 3, the workpiece 6 with the lever 8 is fixedly held by the pivot 7 in a state in which it cannot slide into the case 1. Therefore, the lever 8 exposed from the top and bottom of the front half of the case 1 can be opened and closed while grasped with fingers, and the piece 6, which is also exposed at the front, can be used to properly cut the object or apply other actions. be able to.

In that case, the pieces 6 with the levers 8 are crossed in an X-shape, and are assembled by a pivot 7 in the middle of the crossover, so that they can be opened and closed from a position behind the pivot 7. At the same time, since the large-diameter head of the pivot shaft 7 is crimpedly secured to the wall surface of the case 1, especially the concave stepped surface 14, the piece 6 remains in the case even when subjected to a reaction force such as when cutting an object. This means that stable opening and closing operations can be performed at all times without the risk of sliding back along the elongated hole 3 of 1.

In terms of operation, the lever 8 extends toward the rear of the case 1.
C. The lever can be operated easily and smoothly with the fingertips of one hand, and the operating force can be transmitted to the piece 6 without loss.

A helical spring 11 wound around the pivot 7 applies an expansion biasing force to the piece 6, and the lever 8 at the rear part that bears this force is applied to the opening of the retractable opening 4 opened in the case 1. It can be said that the fact that it is maintained in a relationship where it interferes with the edge also works to suppress the above-mentioned slide back.

Therefore, when carrying or storing the 4th and 5th
As shown in the figure, grasp and squeeze the lever 8 to close the working piece 6, and push in the nut 13 on the pivot 7 to release the head of the bolt 12 from the concave stepped surface 14 of the case 1. After that, it is slid rearward along the guide elongated hole 3 of the pivot case 1.

Then, the piece 6 which is always held by the pivot 7
is housed in the blind rear half of the case 1 in a closed state, and the locked state is maintained by the locking groove 10 of the piece 6 and the locking protrusion 5 of the case 1. It happens.

In this case, the large-diameter head of the pivot 7 is pressed against the wall of the case 1, so even if the phone receives vibrations or shocks, the piece 6 will be accidentally exposed to the front from inside the case 1. As you can see, there is no risk of sliding at all.

On the other hand, in order to convert from the non-use state shown in Figs. 4 and 5 to the use state shown in Figs. 1 to 3, it is only necessary to slide the pivot 7 of the piece 6 forward. However, the conversion process can be performed smoothly with one-touch operation using one hand.

In particular, the present invention is a portable working tool in the form of an opening/closing mechanism using a pivot It as a rotational fulcrum, which includes a pair of left and right working pieces that are integrally equipped with an opening/closing operation lever 8 and intersected in an X-shape. 6 and a cover case 1 which also serves as a grip and which is assembled in a disassembled manner with a pair of left and right slide guide elongated holes 3.
The two pieces 6 are assembled to open and close freely, and the spring 11 wound around the pivot shaft 7 constantly presses and urges both pieces 6 in the expanding direction, and the pivot shaft 7 is attached to both the elongated holes 3 of the case 1. In the penetrating state, the piece 6 is engaged so as to be slidable along the elongated hole 3 of the case 1, so that the piece 6 can be retracted from and retracted from the case 1; Therefore, it is possible to convert the operating state exposed from the case 1 to the stored state in the case 1, which is also buried, in a so-called one-touch method, and the case 1 and the piece 6 with the lever 8 are It also has the effect of being able to be kept and integrated at all times.

In particular, in the present invention, a pair of workpieces 6 are integrally equipped with the opening/closing operation lever 8 and intersect in an X-shape, and in the middle of the intersection, a pivot 7 consisting of a screw fastened body of a bolt 12 and a nut 13 is inserted. , is assembled so that it can be opened and closed freely, and its pivot 7 is engaged with both elongated holes 3 of the case 1 in a penetrating state, so that the fingertips of one hand holding the case 1, which also serves as a grip, will not touch the piece 6. The lever 8 extending rearward can be easily reached, opened and closed smoothly and easily, and there is no loss of operating force, allowing any action to be applied to the target object.

Moreover, by pressing the large-diameter head of the pivot 7 against the wall of the case 1, the slide back of the piece 6 can be fixedly locked, so that the piece 6 exposed from the case 1 can be moved vertically, horizontally, and vertically. Piece 6 not only does not sway and does not move, but even when subjected to action and reaction forces such as cutting the object, the piece 6
There is no risk of the lever sliding back along the elongated hole 3 of the case 1, ensuring stable opening and closing operations at all times, and the lever can be operated extremely smoothly.

A helical spring 11 wound around the pivot shaft 7 constantly applies an expanding force to the heath 6 with the lever 8, and if left as it is, the lever 8 would interfere with the edge of the recessed opening 4 in the case 1. It is also effective to maintain the above effect.

Furthermore, the action of crimping the large-diameter head of the shaft 7 to the wall surface of the case 1 and locking the piece 6 in place does not occur even when the piece 6 is housed in the case 1.
Coupled with the expansion pressing force of the helical spring 11, the piece 6 is accidentally exposed from the case 1 and expands even when the mobile phone is exposed to vibrations or shocks.

U-like dangers will also be completely prevented.

The pivot shaft 7 is a screw fastened body of a bolt 12 and a nut 13, and can be inserted and removed from the case 1, and since the case 1 itself is designed to be disassembled, the piece 6 with a pair of levers 8 is attached. It is extremely easy to replace and install it, and in that sense it corresponds to a so-called replaceable blade type work tool.

Despite being an assembly/disassembly type, the opening/closing state of the piece 6 is extremely stable in the assembled state, allowing smooth and light operation, and the piece 6 can be completely stored in the case 1. It can be said that it is a very convenient device that allows you to carry it safely.

[Brief explanation of the drawing]

The figures illustrate the present invention applied to scissors, with Figure 1 being a side view of its appearance in use, Figure 2 being an enlarged sectional view taken along line X-X in Figure 1, and Figure 3 showing the Y-Y line sectional view of the figure,
Figure 4 is a side sectional view of the unused state corresponding to Figure 3;
The figure is an enlarged sectional view taken along the Z-Z line in FIG. 4. 1...Cover case, 3...Slide guide long hole, 6...Work piece, 7...
・Pivot, 8... Operation lever.

Claims (1)

[Scope of utility model registration request] A pair of left and right working pieces 6 that are integrally equipped with an opening/closing operation lever 8 and intersected in an X shape, and a cover case 1 that also serves as a grip and are assembled in a disassembly manner and are equipped with a pair of left and right slide guide elongated holes 3. Both pieces 6 are assembled in such a way that they can be opened and closed freely by a pivot shaft 7 that connects the middle part of the intersection from the screw fastened body of the bolt 12 and nut 13, and a helical spring 11 wound around the pivot shaft 7 allows the two pieces to be assembled together. The piece 6 is constantly pressed and biased in the expansion direction, and the pivot shaft 7 is inserted into both long holes 3 of the case 1 so as to be slidably engaged along the long holes 3, so that the piece 6 is attached to the case 1
Furthermore, a concave stepped surface 14 is provided on the wall surface of the case 1 to releasably engage the large diameter head of the pivot shaft 7, and another compression coil spring 15 is wound around the pivot shaft 7.
Due to the pressing force of the spring 15, the large-diameter head pitch surface 14
A portable opening/closing work tool, characterized in that the slide bank can be fixedly locked while the piece 6 is in use by being crimped onto the piece 6.