JPH0232014Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a foldable sickle used for cutting grass, small shrubs, etc.

[Conventional technology]

Sickles, which have been used since ancient times, have a fixed blade and handle, with the cutting edge exposed perpendicular to the handle, making it extremely dangerous to store or carry when not in use.

For this reason, various folding sickles have been proposed in which the cutting edge can be folded into the handle and stored.
It has also been previously disclosed by the applicant.

[Problem that the invention attempts to solve]

However, the structure of the sickle itself is curved, requiring a considerable two-dimensional storage space when viewed from the plane, and it is difficult to secure enough storage space for the handle, which has a substantially straight shape. In order to fold and store the cutlery within the handle, the shape of the handle itself must be drastically changed from that of conventional ones.

However, changing the cross-sectional shape of the handle itself in this way gives the user a sense of discomfort and does not fit well with sickles that have been used for many years, making it difficult to use. Therefore, even with a foldable sickle structure, there is a problem to be solved in that the feel of the sickle must not be drastically different from that of a conventional sickle when in use.

On the other hand, when using a sickle to cut grass, small shrubs, etc., the object to be cut is struck by slamming the object, so the impact force that the handle receives from the blade is large, and the impact force on the cutting edge is large. Because dynamic force acts not only on the impact force but also on the attachment part of the blade to the handle, the structure of the folding part must be strong. Therefore, as a folding sickle, it not only needs to be easily folded, but also has the problem of having a support structure that can sufficiently withstand the impact during reaping when the blade part is unfolded.

The problem to be solved with this invention is to create a structure with a strong mounting part that can be folded with simple operation, ensures complete safety after folding, and does not lose any of the original functions of the sickle during use. The purpose is to obtain a folding sickle that has.

[Means for Solving the Problems] The present invention has a fulcrum at the base of the knife portion for pivoting the tips of each of the vertically divided handles, and each handle is aligned around each of the fulcrums. The blade part is stored between the handles by rotating the handles in the direction and combining the handles, and also rotating the handles from the same storage state to the storage state in the opposite direction. The folding sickle is a folding sickle in which the blade part is fixed in the use state, and the base part of the blade part is bent at a substantially right angle from the cutting edge part, and each of the above-mentioned fulcrums is provided at two points on the outside and inside of the bend of the base part. In addition, a rotation stopper is provided near the tip of the base of the blade.

[Effect]

By adopting such a configuration, each pivot point has two locations, and when they are in contact with each other, they are in a positional relationship of approximately 45 degrees with respect to the handle, and the sickle blade part is in a state of use. When unfolded, the stopper means is provided near the tip of the base of the blade, so the blade can be securely and firmly fixed in a predetermined direction.
Furthermore, when folded, the blade can be safely stored within the handle.

〔Example〕

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described based on the attached drawings.

1 to 3 are diagrams showing the overall structure of the folding sickle of the present invention and its operating state.

Fig. 1 shows the folding sickle 1 of the present invention in an unfolded state for use, and Fig. 2 shows an intermediate process of storing the blade part in the handle from the usage state shown in Fig. 1. Further, FIG. 3 is a diagram showing a state in which the cutter part is housed in the handle part.

Referring to these figures, reference numeral 2 indicates a blade portion, and numerals 3 and 4 indicate a handle portion divided into two parts. The blade part 2 consists of a completely curved cutting edge 21 and a base 22 following it, similar to a normal sickle. Figure 4 shows the base 2 of the cutter part 2.
FIG. 2 shows the attachment relationship between the fulcrums 23 and 24 for rotating the handles 3 and 4 and the stopper 25. The base 22 is bent at a substantially right angle to the curved side of the cutting edge 21, and fulcrums 23 and 24 for pivoting the handles 3 and 4 are provided at two locations on the outside and inside of the bend, and the base 22 is A stopper 25 for locking rotation is provided near the tip integrally with the base 22. The stopper 25 is for fixing the blade part 2 to the handles 3 and 4 for folding operation, and is formed in the shape of a protrusion protruding from both sides of the base part 22 of the blade part 2 as shown in the figure. It is the simplest and most effective.

The two halves of the handle portions 3 and 4 are each pivoted on fulcrums 23 and 24 located at the base 22 of the knife portion 2, and as shown in FIGS.
It is rotatable around 3 and 24. As shown in Fig. 1, the same handle parts 3 and 4 have side surfaces that come into close contact with each other when the blade part 2 is unfolded in a state in which the sickle is used, and a side surface 31 that becomes the back surface when folded. 41 is formed in a straight line.

FIG. 5 is a diagram showing the upper structure of one of the handles 3, and FIG. 6 is a diagram of FIG. 5 viewed from the - direction, and the other handle 4 has a similar structure. Referring to these figures, recesses 32 and 42 are formed in the base 22 of the cutter portion 2 to engage the protrusions of the stopper 25.

The opposite surfaces of each of the handles 3 and 4, that is, the side surfaces 33 and 43 facing outward in the state shown in FIG. The base side surfaces 35 and 45 are at approximately the same level, and the handles 3 and 4 are formed so as to be stably fixed in the folded state as shown in FIG.

Furthermore, above both handle parts 3 and 4, grooves 36 and 46 having width and length for storing the cutter part 2 are provided.
is provided. Reference numerals 37 and 47 indicate holes through which bolts for pivotally mounting the handles 3 and 4 to the fulcrums 23 and 24 provided on the base 22 of the cutter 2 are inserted. 5 is a locking piece rotatably attached to the tip of one of the handles 3, and as shown in FIGS. 1 and 3, both handles 3,
When the two handle parts 4 are combined, they are engaged with a locking protrusion (not shown) provided inside the tip of the other handle part 4, thereby fixing both handle parts 3 and 4 in the combined state.

[Effect of idea]

The folding sickle of the present invention has the following effects.

(b) The mechanism is simple, and the folding operation can be performed simply by rotating both handles.

(b) Even when the blade part is unfolded and used, its sturdiness is not inferior to that of a conventional sickle, which has a sturdy base and cannot be folded.

C. The size when the two handles are combined is the same as that of the conventional one, so the user does not feel uncomfortable and there is no problem in use.

D. The blade of the knife is completely stored between the two handles, making it safe.

(e) In the folded state, the whole can be made into a rod-shaped body without any protruding parts, so it can be stored and transported safely and efficiently.

[Brief explanation of the drawing]

1 to 3 are diagrams showing the overall structure and operating state of the folding sickle of the present invention, and FIGS. 4 to 6 are diagrams showing the partial structure. 1: Folding sickle of the present invention, 2: Knife part, 3,
4: handle, 5: locking piece, 21: cutting edge, 22: base, 23, 24: fulcrum, 25: stopper, 31,
41: Side surface, 32, 42: Recessed portion, 33, 43: Straight side surface, 34, 44: Concave side surface, 35, 45: Base side surface, 36, 46: Cut groove, 37, 47: Bolt hole.

Claims (1)

[Scope of utility model registration request] The blade has a fulcrum at the base of the blade portion that pivots the tip of each of the vertically divided handles, and each handle is rotated in one direction about the respective fulcrums to unite the handles. A folding sickle in which the blade part is stored between each handle, and each handle is rotated from the stored state in the opposite direction to the rotation direction to the stored state to fix the blade part in the use state. The base of the blade part is bent at a substantially right angle from the cutting edge part, and the above-mentioned fulcrums are provided at two points on the outside and inside of the bend of the base part, and a rotation stopper is provided near the tip of the base part of the blade part. A folding sickle characterized by having a.