JPS60232191A - Connection structure of blade body in scissors - 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 TECHNICAL FIELD The present invention relates to a structure for connecting the blade of scissors having a blade separated from the handle.

PRIOR ART Conventionally, this type of scissors is described in Japanese Utility Model Application No. 58-32763. In this scissor, the grip handle extends toward the distal end side of the opening/closing central axis, a blade support portion is formed in the extended portion, and the blade body is fixed to the blade support portion. In order to provide this fixing means, the blade supporting portion must be extended far beyond the grip handle, which has the disadvantage that the scissors as a whole become heavy. In addition, since a fixing means is provided at the part where the two blades rub together, it is necessary to devise a fixing means so that there is no problem in rubbing the two blades together. Providing the fixing means at the rubbing portion of the double-edged blades in this way poses various problems regarding the functionality of the scissors.

Purpose The purpose of the present invention is to provide a fixing means other than the rubbing part, that is, on the proximal side of the opening/closing central axis, without providing a fixing means at the rubbing part of the double blade body.
A blade body for scissors that eliminates the blade support part of the conventional example described above to reduce the weight of the entire scissor, and allows for good rubbing without having to make any special efforts to the rubbing part of the double blade bodies. The aim is to provide a bonding structure for

Structure of the Invention In order to achieve this object, the present invention includes a pair of handles made of plastic and a pair of blades made of metal, and a locking protrusion formed on the handle and a locking protrusion formed on the blade. By fitting the holes and aligning the shaft holes formed in the grip handle and the blade body with each other on the distal end side of this fitting part, the blade body is overlapped with the grip handle to form a pair of iron pieces, and this inner iron piece An opening/closing central shaft is inserted into each of the shaft holes, and the blade body is connected to the grip handle by two-point support between the opening/closing central shaft portion and the fitting portion.

EXAMPLE Hereinafter, an example of the present invention will be described with reference to the drawings.The grip handle 1 shown in FIGS. 1 and 2 is made of plastic,
An elongated locking protrusion 2 is formed on the inner surface closer to the distal end, and locking grooves 28 are formed on both side surfaces of the locking protrusion 2, leaving a portion on the proximal end side. Further, the blade body 3 shown in FIG. 3 is made of a thin metal plate of about 017nun, and a locking hole 4 is formed at its base to fit into the locking protrusion 2 of the grip handle 1. The hole 4 consists of a wide part 4a on the base end side and a narrow part 4b on the distal end side.

When connecting the grip handle 1 and the blade body 3, as shown in FIG. Push the portion 4b in the direction of the arrow in FIG. 4 to lock both side edges of the narrow portion 4b in the locking grooves 2a as shown in FIGS. Lay it on top of the tip. In this overlapping state, the shaft hole 5 formed in the grip handle 1 and the blade body 3 is located on the distal side of the fitting portion between the locking protrusion 2 and the locking hole 4.
, 6 are matched with each other. In the iron piece assembled in this manner, the blade body 3 protrudes from the tip of the grip handle 1, and a cutting edge 3a is formed at the protruding portion. Furthermore, when preparing a pair of iron pieces and joining them together, the inner sides of the inner iron pieces are overlapped each other and inserted into the respective shaft holes 5 and 6 of the piles, as shown in FIGS. 7 and 8. Insert the opening/closing central shaft 8.

As shown in FIG. 5, a protrusion 7 is formed on a portion of the inner surface of the handle 1 where the blade body 3 is not overlapped on the proximal end side of the shaft holes 5 and 6 of the iron piece, and as shown in FIGS. As shown in the figure, with the inner iron piece being supported so as to be openable and closable with the opening/closing central axis 8, the protrusion 7 of the inner iron piece is brought into contact with the blade 3 of the other iron piece, and the inner iron piece is centered around the opening/closing central axis 8. and push each other apart,
Contact pressure is applied to the cutting edge 3a of the inner iron piece.

Effect As described above, in the present invention, the opening/closing central shaft 8 portion and the locking protrusion 2
Since the blade body 3 is connected to the grip handle 1 by two-point support with the fitting part of the locking hole 4, there is no need to provide a fixing means in the rubbing part of the double blade bodies 3, and it is possible to open and close the parts other than the rubbing part. The fixing means is provided on the proximal end side of the central axis 8, the blade support part as in the conventional example mentioned above is eliminated, the weight of the entire scissors is reduced, and special ingenuity is applied to the rubbing part of the double-edged blade body 3. Good rubbing can be achieved without any friction.

[Brief explanation of drawings]

Fig. 1 is a plan view showing the grip handle, Fig. 2 is a front view, Fig. 3 is a plan view showing the blade body, Fig. 4 is a plan view showing the state in which the blade body is connected to the handle, Figure 5 is a plan view showing the blade combined with the grip handle, Figure 6 is a sectional view taken along line X-X in Figure 5, Figure 7 is a plan view showing the scissors, and Figure 8 is a front view as well. be. Grip handle 1, locking protrusion 2, locking groove 2a, blade body 3, blade tip 3a,
Locking hole 4, wide part 4a, narrow part 4b, shaft holes 5, 6, protrusion 7, opening/closing center axis 8° Patent applicant Kaiin Knife Development Center Representative Patent attorney On 1) Hironobu Figure 1 Figure 8 Figure 4 Figure 5

Claims (1)

[Claims] It is equipped with a pair of grip handles (1) made of plastic and a pair of blade bodies (3) made of metal, and a locking protrusion (2) formed on the blade body (3) is formed on the grip handle (1). In addition to fitting the locking hole (4), shaft holes (5, 6) formed in the grip handle (1) and the blade body (3) on the distal side of this fitting part
By aligning the blade body (3) with the grip handle (1
) to form a pair of scissor pieces, insert the opening/closing central shaft (8) into each shaft hole (5, 6>) of both iron pieces, and connect the opening/closing central shaft (8) part with the above-mentioned fitting part. The blade body (4
) is coupled to a grip handle (1).