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    • 4. 发明专利
    • HORTICULTURAL IMPLEMENT
    • JP2000125615A
    • 2000-05-09
    • JP26609598
    • 1998-09-21
    • SHIMIZU SEISAKUSHO KK
    • SHIMIZU KIYOSHI
    • A01B1/02A01C5/02B25G1/00B25G3/34B29C45/14
    • PROBLEM TO BE SOLVED: To provide a lightweight horticultural implement so designed as to form a specific grip on a working part consisting of a metallic plate such as of stainless steel and monolithically form a handle so as to mitigate fatigue in various works and be subject to no deformation even in the case of involving soil of hard nature. SOLUTION: This horticultural implement is so designed as to form a working part A consisting of a metallic plate such as of stainless steel and a grip enclosing the basal end of the working part A by injection molding of a synthetic resin such as a nylon-based resin and thus monolithically form a handle B, wherein it is preferable to monolithically form the handle B by boring a window-like hole on the basal end of the working part A and allowing the synthetic resin to flow into the hole in its injection molding and form a projection on the basal end and insert the projection into the hole in the injection molding process, and furthermore, it is preferable that the working part A is a shovel 1 made by curving arc-fashion a metallic plate with the tip pointed.
    • 5. 发明专利
    • CLEANING DEVICE
    • JPH10108805A
    • 1998-04-28
    • JP26487496
    • 1996-10-04
    • LION CORP
    • KATO HIROYASU
    • A47K11/10A47L13/46B25G3/34B60S3/00
    • PROBLEM TO BE SOLVED: To facilitate set and removal of a cleaning member and cleaning of corner spaces, enable disposal of used cleaning member without touching without it, and facilitate washing of the cleaning device after use. SOLUTION: The cleaning device has a main body 21 to the tip end of which a fitting member 30 is fixed, around that a square-tube like cleaning member 40 is fitted. The main body 21 has a handle fixture 22, a guide frame 24 attached to the front part of the handle fixture 22 and a handle 26 fixed to the handle fixture 22 freely rotatably. The fitting member 30 has a polygonal section, and it is fixed to the tip end of the handle 26 in the guide frame 24 to rotate together with rotation of the handle 26. The length of the diagonals of the fitting member 30 is determined to press the inner surface of the cleaning member 40 at a rotated position to hold the cleaning member 40 between the fitting member 30 and the guide frame 24, and is loosely housed in the cleaning member 40 at another rotated position.
    • 7. 发明专利
    • FORMATION OF KNIFE HANDLE
    • JPH03162917A
    • 1991-07-12
    • JP30373589
    • 1989-11-22
    • KAI CUTLERY CENTER CO
    • HASEGAWA KATSUMI
    • B25G3/34B25G1/00B25G1/10B29C45/14B29L31/28
    • PURPOSE:To simplify the structure of a mold by a method wherein an inner thickness part, which is made of synthetic resin and fixed to the basic end part of a knife blade, is inserted in the cavity of a mold in such a manner that two or more supporting parts provided on the inner thickness part are made to abut against the inner surface of the cavity in order to support the inner thickness part. CONSTITUTION:An inner thickness part 2 is inserted in the cavity 7a of a mold 7 and supported in the cavity 7a by making both decorative projections 3 and a mouth part 4 abut against the inner surface of the cavity 7a. Synthetic resin P is injected into a space left between the inner thickness part 2 and the inner surface of the cavity 7a so as to integrally mold an outer thickness part 5 on the outer periphery of the inner thickness part 2. Both the decorative projections 3 and the mouth part 4 are exposed beyond the outer thickness part 5. Accordingly, both the decorative projections 3 and the mouth part 4 abut against the inner surface of the cavity 7a, the inner thickness part 2 is positioned in the cavity 7a. Thus, the provision of supporting parts, which support the inner thickness part 2, on the mold 7 becomes unnecessary, resulting in simplifying the structure of the mold 7.