JPS6133600B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION TECHNICAL FIELD The present invention relates to knives, and more particularly to a knife, such as a pocket knife, which is constructed so that the blade can be opened and closed between both side plates of the handle.

PRIOR TECHNOLOGY Conventionally, for example, in pocket knives, etc., the blade was rotatably mounted between both side plates of the handle, and the blade was held in the open and closed states by an elastic back metal. Ta. However, when assembling this type of pocket knife, the blade must be pivoted between the narrow side plates against the elasticity of the fixed back metal, which requires skill to assemble. Additionally, a hardening process was required when manufacturing the back metal.

Furthermore, in this type of pocket knife,
Because the blade must be opened and closed against the elasticity of the back metal, a considerable amount of force is required.In particular, when opening the blade, the user must use the claw hook on the blade to open it, which requires a lot of force. It was difficult for people with disabilities or those with gloves on to open it.

Purpose This invention was made in order to eliminate the deficiencies of the conventional pocket knife, and its purpose is to have a novel blade insertion/extraction mechanism that does not require an elastic back plate, and also to simplify assembly work. Our goal is to provide a simple knife.

Embodiment Hereinafter, the present invention will be explained with reference to the drawings based on an embodiment of the invention as a pocket knife. Reference numeral 1 denotes a handle, and there is a handle 1 which is caulked at the top of the tip between two opposing side plates 2. It consists of a locking member 4 as a locking portion which is clamped and fixed by a pin 3. As shown in FIG. 4, a screw hole 5 is formed at the base end of one side plate 2, and a through hole 6 having a stepped portion is formed at the corresponding position of the other side plate 2.

Reference numeral 7 denotes a support rotatably attached to the lower part of the proximal end between the side plates 2 by a screw 9 as a shaft threaded into the screw hole 5 from the through hole 6 through the engagement hole 8 at the proximal end. A through hole 10 is formed at the tip of the member, extending in a direction perpendicular to the longitudinal direction and the width direction. Reference numeral 11 denotes a blade having a notch 12 as an engaging part at the upper part of the base end, and the notch 1
2 has a fitting hole 13 continuous to the through hole 10, and is rotatably attached to the through hole 10 of the support member 7 by a pin 14 fitted in the fitting hole 13.

Next, a method of assembling the pocket knife constructed as described above will be explained.

First, the handle 1 is manufactured by caulking the two side plates 2 and the locking member 4 using the caulking pins 3. Next, the pin 14 is fitted into the fitting hole 13 of the blade 11, and the protruding end is inserted into the through hole 13 of the support member 7.
After inserting it into the hole 10, the tip is caulked to prevent it from slipping out of the hole 10. Next, the base end of the support member 7 is inserted between the base end side plates 2 of the handle 1, the engagement hole 8 is made to correspond to the through hole 6 and the screw hole 5 of the side plate 2, and the screw 9 is inserted between the side plates 2. Attach rotatably.

Next, the operation of the pocket knife constructed as described above will be explained.

Now, in this pocket knife, the blade 11 is the handle 1.
When the blade 11 is housed inside, the proximal end of the blade 11 protrudes slightly from the tip of the handle 1, as shown in FIG. 1, and the notch 12 is held in engagement with the locking member 4 . When a clockwise force is applied to the proximal protrusion of the blade 11 in this state, the support member 7 is rotated together with the blade 11 about the screw 9.
As shown in FIG. 5, when a force is applied to the blade 11 in a direction perpendicular to its side surface in a state in which the entire blade 11 protrudes outside the handle 1, the blade 11
1 is a handle 1 and a support member 7 centered around a pin 14.
is rotated across a plane containing the Blade 11
is rotated 180 degrees as shown in FIG. As shown in Figure 7, the notch 12
is engaged with the locking member 4, and the blade 11 is locked and held in a protruding state.

When storing the blade 11 in the handle 1, rotate the blade 11 clockwise together with the support member 7 from the state shown in FIG. 7, and then rotate the blade 11 around the pin 14.
When the blade 11 is rotated 180 degrees and finally rotated counterclockwise together with the support member 7, the notch 12 of the blade 11 is engaged with the locking member 4, as shown in FIG. The blade 11 and the support member 7 are housed and held between the side plates 2 of the handle 1.

Note that by adjusting the tightening strength of the screw 9, the strength of the force required to rotate the support member 7 can be adjusted.

Another Embodiment Next, another embodiment in which the present invention is embodied in a hunting knife will be described with reference to FIGS. 8 to 10.

In this embodiment, instead of the pocket knife blade 11 of the previous embodiment, a blade 11 having a pair of blade bodies 15a and 15b of different shapes extending in opposite directions is attached to a support member 7 at approximately the center thereof. This embodiment differs from the previous embodiment in that the hunting knife is constructed by rotatably attaching the knife, and that the side plates 2 and the locking member 4 are integrally formed of synthetic resin.

Therefore, in this hunting knife, as shown in FIG. 8, one blade body 15a is normally held in a protruding state and can be used in the same manner as a conventional hunting knife. When using the protruding one blade 15a and the other blade 15b having a different shape, first apply a clockwise force to one of the blades 15a to rotate the blade 11 and the support member 7. let Next, the blade 11 is rotated 180 degrees with the entire other blade 15b protruding outside the handle 1, the positions of the double blades 15a and 15b are replaced, and finally, a counterclockwise force is applied to the support member 7. When the blade 11 and the support member 7 are rotated by applying a be done.

Note that the present invention is not limited to the above-mentioned embodiments. For example, a pocket knife may be manufactured by attaching a support member rotatably to the handle at its center and attaching a blade or the like to both ends of the support member. The shape, structure, etc. of each part may be arbitrarily changed without departing from the spirit of this invention, such as configuring a hunting knife by changing one of the two blade bodies to a hollow or file, etc. is also possible.

Effects As detailed above, in the knife of the present invention, the support member for attaching the blade is rotatably mounted between both side plates of the handle about an axis extending in a direction perpendicular to the both side plates. The axis of rotation of the blade is approximately parallel to the longitudinal direction of the blade within a plane that includes the blade through a shaft attached to the end of the support member so as to extend in the longitudinal direction of the support member and in a direction orthogonal to the axis. The blade is rotatably mounted in an orthogonal position, and an engaging part is provided on the back of the blade that engages with a locking part provided between both side plates, eliminating the need for an elastic back plate. Moreover, it has the excellent effect of being easy to assemble.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway front view showing a pocket knife embodying the present invention, Fig. 2 is a plan view, Fig. 3 is a cross-sectional view taken along line A-A in Fig. 1, and Fig. 4 is the same as in Fig. 1. 5 and 6 are partially cutaway front views showing the state in which the blade is extended, FIG. 7 is a partially cutaway front view showing the blade being extended, and FIG. The figure is a partially cutaway front view showing a hunting knife embodying the invention, FIG. 9 is a plan view, and
Figure 0 is a partially cutaway front view showing the same hunting knife with different shaped blades. Handle part...1, Side plate...2, Locking member...4, Screw hole...5, Through hole...6, Support member...7, Engagement hole...8, Screw...9, Blade... ...11, Notch part...12, Blade body...15a, 15b.

Claims (1)

[Scope of Claims] 1. A support member 7 to which the blade 11 is attached is rotatably attached between the side plates 2 of the handle 1 about an axis extending in a direction perpendicular to the side plates 2, and The blade 11 is rotated through a shaft attached to the end of the support member 7 in a state extending in the longitudinal direction of the support member 7 and in a direction orthogonal to the axis, and the rotation axis of the blade 11 is within a plane including the blade 11.
The sword blade 11 is rotatably attached in a state substantially perpendicular to the longitudinal direction, and an engaging part 12 is provided on the back side of the blade 11 to engage with a locking part 4 provided between both side plates 2. knife. 2. The blade 11 has a pair of blade bodies 15a and 15b extending in opposite directions, and is rotatably attached to the tip of the support member 7 at approximately the center thereof. Knife mentioned. 3. The knife according to claim 1, wherein the handle portion 1 has both side plates 2 and other parts integrally formed of synthetic resin. 4. The shaft for attaching the support member 7 between the both side plates 2 of the handle 1 is a screw 9 screwed into a screw hole 5 formed in one side plate with a male threaded portion at the tip thereof.Claim 1 The knife described in.