JPS5935597Y2 - Clipper type cutting tool - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates primarily to a clipper-type cutting tool used for cutting piles of flocked base fabric in order to create patterns on carpets based on variations in unevenness.

In the conventional hair clipper-type cutting tool of this kind, as seen in haircutting tools, each fixed blade body is juxtaposed in the lateral direction with respect to the direction of cutting progress, and the side-by-side fixed blade bodies are Each of the movable blades that slides back and forth along the direction of travel is formed into a bilaterally symmetrical isosceles triangle or a shape similar to this, with the center line being a straight line along the direction of travel.

However, the sloped sides located laterally outward from the apex of each fixed blade do not exhibit cutting action, and the pile that comes into contact there receives resistance to the progress of cutting, making it difficult to perform smooth and efficient work. It had the disadvantage that it was easily damaged by forcing it laterally outward.

The present invention aims to eliminate such drawbacks, and embodiments of the light chamber will be described below based on the drawings.

In the present invention, the fixed blade 1 has a right-angled triangular shape or almost a right-angled triangular shape and has a blade edge 1a only on its oblique side, and the movable blade 2 has a generally rectangular or almost rectangular tip end. It is rounded and has blade edges 2a, 2 on both sides.
Use the one in which a is formed.

That is, the two fixed blade bodies 1, their blade edges 1a, 1a
are fixed to a common blade holder 3 so that the fixed blade bodies 1, 1 are arranged side by side in the same plane, and their vertical sides lb and lb are parallel or almost parallel. On the other hand, the above-mentioned movable blade body 2 is placed on the upper surface of these juxtaposed fixed blade bodies 1, 1, and its both side blade edges 2a, 2a are the vertical sides 1b,
1b, over a range from a position where the left blade edge 2a matches or almost matches the left vertical side 1b to a position where the right blade edge 2a matches or almost matches the right vertical side 1b. It is held in a polymer state so that it can freely slide back and forth in the lateral direction.

The movable blade body 2 has a groove 2b formed on its bottom surface which is slidably fitted into the upper surface protrusion IC of the fixed blade bodies 1,1.

Reference numeral 4 denotes a crank arm whose longitudinally intermediate portion is pivotally attached via a shaft 5 so as to be able to freely swing around its axis, and a protrusion 2C of the movable blade body 2 is inserted into a long hole 4a that is shaped at the front end side of the crank arm. is engaged, while the protrusion 6a of the crank 6 is engaged with the elongated hole 4b, which serves as a shape on the rear end side.

The rotating shaft 6b of the crank 6 is operatively connected to the output shaft of a motor 7 built into the grip operation section 8 via a suitable transmission device such as a bevel gear.

9 is a switch for the motor 7. Reference numeral 10 denotes a plate spring having a T-shape in plan view for elastically pressing the movable blade body 2 against the fixed blade bodies 1, 1 from above.

The width of the movable blade body 2 is set to be % or less of the width between the vertical sides 1b and lb of the juxtaposed fixed blade bodies 1,1.

Figure 3 shows a state in which a carpet pile is being cut using the clipper-type cutting tool configured as described above, with both vertical sides 1b and lb of the juxtaposed fixed blades 1 and 1 being parallel to the cutting progress direction. , and both side blade edges 2a of the movable blade body 2
, 2a do not protrude laterally outwardly than the vertical sides 1b, lb on both sides due to their reciprocating sliding, so the vertical sides 1b, l
The piles located laterally outside b do not offer any resistance to the cutting progress and are not themselves pushed outwards.

Further, it is easy to proceed with cutting in an inclined state as shown in FIG. 4, and in this case as well, there is no need to encounter resistance.

In summary, the clipper-type cutting tool according to the present invention has two fixed blade bodies 1, 1 in the shape of a right triangle or a nearly right triangle with the oblique side thereof formed as the blade edge 1a.
A is placed side by side and fixed in the same plane in a V-shaped state, and on these juxtaposed fixed blade bodies 1, 1, there is one movable blade body 2 having a rectangular shape and having blade edges 2a, 2a formed on both sides thereof. , characterized in that both side blade edges 2a, 2a are overlapped and held so as to be slidable back and forth over a range that coincides with or almost coincides with both vertical sides 1b, lb of the juxtaposed fixed blade bodies 1, 1. This has resulted in the following effects.

That is, firstly, both vertical sides 1b, lb of the juxtaposed fixed blade bodies 1, 1
are parallel or nearly parallel to the direction of cutting progress, and both side blade edges 2a, 2a of the movable blade body 2 also move the both side vertical sides 1b by reciprocating sliding thereof.

Since it does not move horizontally outward from 1b, both vertical sides 1b
The flocked objects to be cut, such as carpet piles located on the lateral outside of the blade 1., lb, do not act as resistance to the progress of cutting as in the past, and are forced to be forced to the lateral outside of the blade 1.
1. You don't have to take it from 2 onwards.

Second, the flocked body to be cut in the cutting progress direction is taken in between the V-shaped blade edges 1a, 1a, and these blade edges 1a
, 1a and both side blade edges 2a, 2a of the movable blade body 2 that reciprocate and slide.
The intersecting angle of the cooperating blade edges 1a, 2a, . . . is much smaller than that of the conventional cutting edge, so cutting can be performed very sharply and reliably.

As described above, according to the present invention, it has been possible to provide a clipper-type cutting tool that can carry out cutting work with extremely high efficiency and in good quality due to the synergy of the above factors.

[Brief explanation of drawings]

The drawings illustrate an embodiment of the clipper-type cutting tool according to the present invention, in which FIG. 1 is a partially cutaway side view, FIG. 2 is a partially cutaway plan view, and FIGS. 3 and 4 are explanatory views of the cutting action. It is. 1...Fixed blade body, 1a...Blade edge, 1b
...Vertical side, 2...Movable blade body, 2a...
...blade edge.

Claims (1)

[Scope of utility model registration request] A right-angled triangular shape or almost a right-angled triangular shape, and its oblique feeding is carried out by the blade edge 1.
The two fixed blade bodies 1, 1 formed in a are connected to their blade edges 1.
a and 1a are arranged side by side and fixed in the same plane in a ■-shaped state, and on these main fixed blade bodies 1 and 1, there is one movable blade body in which rectangular blade lines 2a and 2a are formed on both sides thereof. 2, whose both side blade edges 2a, 2a are the juxtaposed fixed blade bodies 1
, 1. A clipper-type cutting tool that is held overlapped so as to be slidable back and forth over a range that matches or almost matches the longitudinal sides 1b and lb on both sides of the blade.