JPS6012509Y2 - cutting tools - Google Patents

Description

[Detailed description of the invention] This invention relates to the improvement of cutting tools such as scissors for various uses, and in particular, the cutting blade body and its opening/closing operation lever are separated and detachably assembled into a grip case. , all of them can be completely folded and stored in the case, making it extremely safe and convenient to carry, and anyone can easily convert between the stored state when not in use and the state when it is cut and used. In addition to being designed to allow quick and small cutting operations to be carried out smoothly when in use.

Hereinafter, the specific structure of the present invention will be explained based on the illustrated embodiment. The figure shows a set of scissors with one lever, and
In the figure, reference numeral 1 designates a grip case that can be held in one hand, and is preferably molded from a colored synthetic resin.

This case 1 is assembled into two parts in a state of joining or fitting, and the blade body and its opening/closing operation lever, which will be described later, can both be received and stored in the hollow interior. ing.

In other words, 2 is the case body which is one of the two halves, 3 is the other lid body, and both are connected by a plurality of screws 4 and 5.
The assembly is integrated in a removable manner.

The screws 4 and 5 are both screwed into shaft cylinder parts that project horizontally inward from the case body 2 and the lid 3, respectively. The cylindrical portion into which one of the pair of screws 4 is to be received is also used as the pivot shaft 6 of the lever.

Of course, the lever may be pivoted to the case 1 so as to be able to rise and fall freely using a separate pivot shaft or a pivot support holding means in place of the shaft.

Reference numeral 7.8 denotes a pair of slide guide rails that cause the blade body to move in and out of the case 1, one of which, the guide rail 7, is aligned with the head of the coupling shaft in the blade body on the inner surface of the side wall on the side of the case body 2. The receiver is integrally protruded in the form of a recessed groove that can be inserted and engaged.

The other guide rail 8 has an elongated hole formed in the side wall on the side of the lid 3 through which the coupling axis can be guided, and both guide rails 7.8 are located on the longitudinal center line of the case 1 itself. , and are elongated in the front-rear direction facing each other.

The case 1, which is formed into a hollow box shape by a case body 2 and a lid 3, has a lever opening 9 in its top wall and a blade opening 10 in its front wall.

Reference numerals 11 and 12 denote a fixed blade body and a movable blade body for cutting, and a connecting shaft 13 passing through the middle part of the X-shaped intersection allows
It is maintained in such a way that it can be opened and closed.

The pivot 13 is a screw fastened body consisting of a bolt 14 with a square head and a nut 15 screwed into the bolt.
The square head of 4 is the concave groove type guide rail 7 on the case body 2 side.
is engaged so that it can only slide.

In addition, a knob made of Hewei resin integrated with the nut 15 is led out from the through-opening type guide rail 8 on the lid body 3 side, and therefore, by sliding it in the front and rear direction with a fingertip, etc. It is possible to switch between an unused and stored state in which the double-edged blades 11 and 12 are buried in the case 1 and a cutting and used state in which they are exposed as well, with a single touch operation.

Reference numerals 16 and 17 designate engaging claws that are bent in an L-shape continuous with the rear ends of the two types of blade bodies 11 and 12, and are bent in opposite directions.

Reference numeral 18 denotes a helical spring elastically biased to constantly expand the movable blade body 12 relative to the fixed blade body 11;
．． 12 coupling shafts 13, and both separated ends thereof are individually latched and fixed to the middle of the rear of the double-edged blades 11 and 12.

Reference numeral 19 designates an operating lever for opening and closing the blade, preferably molded from a colored synthetic resin, and at its front end, the case 1
is inserted into the above-mentioned pivot 6 so as to be freely rotatable in an undulating manner.

This lever 19 generally has a U-shaped cross section, and a claw receiver is inserted into one side wall of the U-shape, and a slide guide long groove 20 extends along the front-rear direction.

Slide guide long grooves 21 similar to this are also arranged in a row on the inner surface of the side wall of the case 1, particularly on the main body 2 side.

The engaging pawl 16 of the fixed blade 11 is slidably inserted into the slide guide long groove 21 on the case 1 side, and the engaging pawl 17 of the movable blade 12 is slidably inserted into the slide guide long groove 20 on the same lever 19 side. engaged.

Therefore, the biasing force of the helical spring 18 that constantly biases the movable blade body 12 in the expansion direction is directly borne by the lever 19, and as a result, the fingertips of one hand holding the grip case 1 can By pressing the lever 19, the object can be reliably cut by opening and closing the double-edged blades 11 and 12.

Reference numeral 22 denotes a stopper tongue that is slightly bent from the side wall of the case 1 on the side of the lid 3, and is designed to prevent the blades 11 and 12 from retreating due to the reaction force of cutting the object. It is designed to hit the nut knob mentioned above from behind.

The pivot 13 is connected to the slide guide rail 7.8 of the case 1.
When sliding the blades 11 and 12 forward along the curve, the tongue 22 is automatically pushed down by the knob while resisting the bending elasticity. Only when storing the tongue piece 22, it is sufficient to artificially push the tongue piece 22 and pass the knob of the pivot 13 over the tongue piece 22.

To explain the opening and closing action of the scissors wound in the above configuration, as is clear from FIGS. The fixed blade body 11 is engaged while receiving the fixed blade body 11.
is exposed from the case 1, so operate the lever 19 with the fingertips of one hand holding the case 1 to open and close the movable blade 12 relative to the fixed blade 11 to properly cut the target object. In that case, it is also possible to move the movable blade body 12 quickly in small increments, for example, like hairdressing scissors.

When carrying or storing the double-edged body 11, hold the lever 19 with the fingertips of one hand and squeeze it as shown in FIG. 5 to the states shown in FIGS. 6 to 9.
12 coupling shafts 13 may be slid rearward.

In this way, the movable blade body 12 engages with the lever 19,
Furthermore, while the fixed blade body 11 engages with the case 1, it simultaneously maintains the closed state, slides into the case 1 in a recessed manner, and is completely folded and stored within the case 1.

When the lever 19 is not in use, the lever 19 may be accidentally raised, but the restoring force of the spring 18 allows the lock to be locked without any wobbling.

As described above, in the cutting tool of the present invention, the fixed blade body 11 is always elastically biased in the expanding direction, and the pivot shaft 1
A guide rail 7 that slidably engages the movable blade body 12 coupled to the movable blade body 12 by the movable blade member 3 in a freely openable and closable manner and the coupling shaft 13 thereof.
．． 8 is provided, and the retaclip case 1 is pivotally connected to the case 1 so as to be freely rotatable in an undulating manner so that the movable blade body 12 exposed from the case 1 in an expanded state can be opened and closed with respect to the fixed blade body 11. The fixed blade body 11 is slidably engaged with the case 1 and the movable blade body 12 is slidably engaged with the lever 19, so that the expansion bullet force of the movable blade body 12 is applied to the lever 19. In addition, the lever 19
By laying down the double-edged blades 11 and 12 in the case 1, the double-edged blades 11 and 12 can be slid into the case 1 at once and stored. It is small and compact and can be easily carried, and when exposed from the case 1, the double-edged body 11
．． 12, the object can be reliably cut, and the movable blade 12 can be opened and closed in small increments with respect to the fixed blade 11, making it easy to use.

Furthermore, the conversion operation between the two states can be performed simply by sliding the joint shafts 13 of the double-edged blades 11 and 12 in the front and back direction.
Therefore, anyone can use it extremely easily, and the blade 1
1 and 12, the lever 19, and the case 1 can be individually replaced and attached/detached, so this is a practical idea.

[Brief explanation of drawings]

The figures relate to an embodiment of the present invention applied to scissors; Fig. 1 is an external side view of the device in its expanded state, Fig. 2 is a side view of the grip case in its open state, and Fig. 3 is a side view of the device in its opened state. A side view of the lid open state seen from the opposite direction to Figure 2, Figure 4 is A of Figure 1.
- An enlarged cross-sectional view taken along line A; FIG. 5 is an external side view corresponding to FIG. 1 showing the closed and used state; FIG. 6 is a side view corresponding to FIG. 6 is a front view, FIG. 8 is an enlarged sectional view taken along the line B--B in FIG. 6, and FIG. 9 is a sectional view taken along the line C--C in FIG. 7. 1...Grip case, 6...Rotation axis, 7゜8...Slide guide rail, 11.
...Fixed blade body, 12...Movable blade body, 13
......Connection axis, 16.17...Engagement claw, 18...Helix spring, 19...Operating lever 20,21...・Slide guide long groove.

Claims (1)

[Scope of utility model registration request] A grip case is provided with a movable blade that is attached to the fixed blade so that it can be opened and closed by a pivot, and a guide rail that slidably engages the pivot, so that the fixed blade is always elastically biased in the direction of expansion. In order to open and close the expanded movable blade body exposed from the case with respect to the fixed blade body, the movable blade By slidably engaging the bodies with the levers, allowing the levers to take on the expansion bullet pressure of the movable blade bodies, and by lowering the levers into the case, the two blade bodies can be moved at once. A cutting tool characterized by being designed so that it can be stored by sliding it into a case.