JPS6344811A - Sickle - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (1) Object of the Invention (a) Field of Use of the Invention The present invention relates to an epoch-making improvement of a sickle, regardless of its use.

(b) Regarding the technology and problems of conventional sickles A conventional sickle consists of a handle 9 and a main body 1, and the main body is made of iron and consists of a body and a momme as one body. The Momme 10 is formed by polishing one side of the main body, but as it is used, it gradually becomes dull, or the Momme spills when it hits a hard object, making it impossible to cut, so it must be polished with a whetstone each time. However, nowadays, due to the spread of automatic lawn mowers, there are fewer people who have acquired the skills to sharpen sickles with whetstones. It is becoming more and more common to throw away.

In addition, the conventional manufacturing technology for sickles is to heat a single iron plate, pound it, stretch it, and polish it. It took a lot of time to make sickles because the process involved forming them or polishing the soft iron part using a double-layered steel plate to form the momme.

(c) Regarding the problems that the present invention aims to solve, in the conventional technology, it takes a lot of time and effort to manufacture the product, and the technology of polishing and using it when it becomes uncut or has spillage has disappeared. Therefore, it is an object of the present invention to provide a sickle that is easy to manufacture and does not require polishing. (2) Structure of the Invention The present invention was invented for the above purpose, and its structure will be described next.

The present invention completely departs from conventional sickle manufacturing techniques and the existing concept of forming the momme by polishing, and divides the main body 1, which is the iron part of the conventional sickle, into two parts, the momme base part 2 and the blade part 3. The structure is such that the main body 1' is fabricated, and the blade part 3 is assembled and fixed to the stump part 2, and the handle 8 is attached to this body 1'.

As shown in FIG. 2, the blade part 3 is placed on the side of the pedestal part 2, and the part on which the blade part 3 is placed has a step with the same thickness as the ridge 5 of the blade part 3. 5' is provided to form a momme placing part 4, and the opposite surface 4' of this momme placing part 4 is the cutting surface 3 of the blade part 3.
It is formed to have the same angle of inclination as the blade 3', and its point is shaped like a serpentine so as to fit in with the cutting surface 3'. Momme placement part 4
An appropriate number of screw holes 6 for attaching the blade portion 3 are provided in the holder.

Next, the blade part 3 is made of steel, and the screw hole 6 provided in the momme mounting part 4
The same number of mounting screw holes 6' are provided.

The sickle body f has a momme mounting portion 4 formed on the momme stand portion 2 described below.
The blade part 3 is mounted and fixed using the screw 7, with the blade surface 3' and the sharp edge part of the momme mounting part 4 aligned. In such a case, the sickle body 1
' is constructed, and by attaching the handle 8 to this, a sickle is constructed.

(3) Regarding the operation and effects of the invention The sickle of the present invention has the following configuration, so it can be used in the same way as a conventional sickle, but the kama is worn out and the precept becomes unsharp due to overflow of the kama due to use. There is no need to polish this blade, and it can be used immediately by removing the screw 7 and replacing it with a new spare blade. Therefore, unlike conventional sickles, there is no need to sharpen the kama, and the uneconomical problem of discarding the sickle as unusable is also eliminated.

In addition, replacement blades are extremely inexpensive when manufactured in large quantities, and if a magnetic screwdriver is used, the work of replacing the momme using a small screw 7 can be easily performed.

Note that although the thickness of both the momme base portion 2 and the blade portion 3 is extremely thin, the machining and forming of the momme mounting portion 4, the screws 7 and the screw holes 6.
' is extremely easy to form using current precision processing technology, and manufacturing the blade part 3 is also technically extremely easy, so it is extremely efficient compared to the manufacturing of conventional sickles. It has many advantages in that it can be manufactured in a number of ways.

[Brief explanation of the drawing]

The drawings show an embodiment, and FIG. 1(A) is a front view of a conventional sickle, and FIG. 1(B) is a sectional view taken along line xx'. Figure 2 shows a sickle according to the present invention, (A) is its front view, and (
B) is an enlarged cross-sectional view of the Y-Y' line, (C) is an enlarged cross-sectional view of the stump portion, and (D) is an enlarged cross-sectional view of the blade portion. 2...Momme stand part 3...Blade part 4...Momme placement part 5''...Step part 6
．． 6'... Screw hole 7... Screw 8... Handle Patent applicant Hiroshi Sasaki = 4 = Figure 7 (5) )
(A) 2 “l′] 2 0 −°−−−−−−−−−−−−−−−−−−−
1-----"7Y・"? (C)
3 ()4'3 ■

Claims (1)

[Claims] This sickle is formed by forming a momme mounting part 4 on a momme mounting part 2, and a blade part 3 being removably mounted and fixed on the momme mounting part 4 to form a sickle main body, and a handle 10 is attached thereto.