JP7094522B2 - Hoe wood handle mounting structure - Google Patents

Description

The present invention relates to a wooden handle mounting structure of a hoe.

As is well known, the hoe has a wooden handle attached to various forms of hoe body (flat hoe, kara hoe, Bichu hoe, grass hoe, tonbi hoe, etc.). A through hole provided in the bath part or a mounting cylinder is provided on the outside of the base edge of the hoe body, a wooden handle is inserted into the mounting cylinder, and a wedge plate is driven between the inserted wooden handle and the inner surface of the mounting cylinder. The wooden handle is fixed (Patent Document 1). However, in the mounting structure that adopts the above mounting cylinder and uses a wedge body, the mounted wooden handle tends to rattle if the mounting cylinder is short, and if the mounting cylinder is long, the weight of the hoe body will increase, and aging. The change (drying of the wooden handle) loosens the wedge body and hinders the robust mounting of the wooden handle.

Therefore, instead of adopting a wedge plate, a means for projecting a facing plate portion to which a wooden handle is attached from the washer body and fixing the wooden handle between the facing plate portions with a through bolt and a nut (Patent Document 2), and the above-mentioned As a means, a means using one of the facing plate portions as a washer has been proposed (Patent Document 3).

Jikkai Sho 60-125081A. Jikkai Sho 60-74979. Jikkai Akira 60-117082 publication.

When using a hoe for agricultural work, the movement of the hoe is to rotate the hoe on the other side of the wooden handle with respect to the ground, centering on the hand side of the wooden handle. By the above operation, a force is applied to the connecting portion between the hoe body and the wooden handle in the direction in which the hand side of the wooden handle is separated from the hoe body. It becomes point support and rattling of the connecting part is likely to occur. For this reason, two through bolts are used to connect the facing plate portion and the wooden handle in the direction of the tip of the wooden handle. However, in the structure using two through bolts, the work of attaching and detaching the wooden handle for attaching the wooden handle and replacing the wooden handle becomes complicated.

Therefore, the present invention proposes a novel wooden handle mounting structure for a hoe that can be sufficiently supported even when a single through bolt is mounted or when a hoe is used.

The wooden handle mounting structure according to claim 1 of the present invention has an appropriate length of an end face U-shaped composed of a bottom surface portion and both side surface portions corresponding to the three peripheral surfaces of the wooden handle at the wooden handle mounting position of the hoe body. A receiving plate portion having a connecting hole formed at an appropriate position on the bottom surface portion is projected, and an arch-shaped pressing plate is provided along the receiving plate portion with a wooden handle tip portion having a through hole corresponding to the connecting hole. A fixed body having a portion, a connecting hole, and a bolt hole corresponding to the through hole is arranged on the surface of the wooden handle, a fixing bolt penetrating the connecting hole, the through hole, and the bolt hole is attached, and the fixing bolt is screwed into the fixing bolt. It is characterized by tightening the nuts and attaching the wooden handle to the hoe body.

Therefore, at the tip mounting part of the wooden handle (connecting part with the hoe body), the tip end of the pressing plate part of the fixed body comes into contact with the wood handle by the fixing bolt and nut, and the two points of the tip are hit. The pressure is sandwiched between the bottom surface of the receiving plate and the pressing plate at the tangent position, and the same function as arranging the fixing bolts at the two front points is exhibited.

Further, in the wooden handle mounting structure according to claim 2 of the present invention, in the above structure, in particular, the fixed body is provided with a locking portion in which the tip of the pressing plate portion is bent to be locked to the tip surface of the wooden handle. Since the locking portion at the tip of the fixed body comes into contact with the tip surface of the wooden handle, lateral displacement rotation of the fixed body (rotation on a plane orthogonal to the axial direction of the fixing bolt) is prevented.

Further, in the above-mentioned structure, the wooden handle mounting structure according to claim 3 of the present invention is particularly provided on the outer peripheral surface of the wooden handle with the bottom surface portion and both side surface portions of the receiving plate portion at the opening portion on the base end side of the receiving plate portion. The restraining strip is erected to correspond to this, and by inserting the wooden handle into the space surrounded by the restraining plate and the restraining strip, even if the fixing bolts and nuts are loosened during work, Since the wooden handle is held between the holding band plate and the receiving plate, there is no danger that the hoe body will come off the mounting position.

The configuration of the present invention is as described above, and it is possible to pinch at two places with one fixing bolt, and in the wooden handle mounting structure that adopts the fixing bolt, the wooden handle mounting operation with bolts and nuts is simplified. Is.

The perspective view of the state before the wooden handle of the embodiment of this invention is attached. A perspective view of the state after the same wooden handle is attached. Same side view.

Next, an embodiment of the present invention will be described. The wooden handle structure shown in the embodiment is composed of a receiving plate portion 1 provided on the hoe main body A, a fixing body 2, a wooden handle 3 attached to the hoe main body A, a fixing bolt 4, and a nut 5.

The illustrated hoe body A shows a flat hoe, but the present invention can be applied to any of the types regardless of the type.

The receiving plate portion 1 is provided with an end surface portion 11 having a bottom surface portion 11 parallel to the cutting edge edge of the hoe body A and a side surface portion 12 having a height corresponding to the width of the wooden handle 3 and appropriately exposing the upper surface side of the wooden handle 3. It has an appropriate length suitable for connecting the wooden handle 3, and is welded to the hoe body A so that the upper end of the side surface portion 12 is near the original edge of the wooden handle mounting position in the hoe body A. It was erected.

Further, a connecting hole 13 is formed at a substantially intermediate position of the bottom surface portion 11, and the bottom surface portion 11 and both side surface portions 12 correspond to the outer peripheral surface of the wooden handle 3 in the opening portion facing the bottom surface portion 11 on the base end side. A holding strip portion 14 having an appropriate width having an appropriate width is erected.

The fixed body 2 has a length from the tip end (position of the hoe body A) on the substantially bottom surface portion 11 to the tip end edge of the holding band plate portion 14, and is an arch-shaped pressing plate having a floating lower portion (direction of the bottom surface portion 11). The portion 21 is composed of a locking plate portion 22 in which the tip of the pressing plate portion 21 is bent downward (toward the bottom surface portion 11), and a bolt hole 23 corresponding to the connecting hole 13 is provided.

The wooden handle 3 is the same as the previous one, and the tip portion (connecting portion with the hoe body A) has a rectangular cross section, and a through hole 31 is provided at a position corresponding to the connecting hole 13 and the bolt hole 23. be.

The fixing bolt 4 has a sufficient length to penetrate the connecting hole 13, the bolt hole 23, and the through hole 31, and the nut 5 is screwed and mounted on the fixing bolt 4.

Therefore, in the wooden handle connecting structure of the present invention, the tip portion of the wooden handle 3 is attached to the bottom surface portion 11 and the side surface portion 12 from the original end side of the plate portion 1, and is inserted inside the holding strip portion 14. , The tip portion of the wooden handle 3 is brought into close contact with the plate portion 1.

Next, the locking portion 22 of the fixed body 2 is brought into contact with the tip surface of the wooden handle 3, the pressing plate portion 21 is placed along the upper surface of the wooden handle 3, and the fixing bolt 4 is inserted from the outside of the bottom surface portion 11 to be connected. The hole 13, the through hole 31, and the bolt hole 23 are through-mounted and mounted, and the nut 5 is screwed and tightened to the shaft portion of the fixing bolt 4 exposed from the surface of the pressing plate portion 21.

By tightening the nut 5, the arch-shaped pressing plate portion 21 is pressed down, and the wooden handle 3 is placed on the bottom surface portion 11 side at the two front points where the wooden handle 3 is in contact with the wooden handle 3 in the pressing plate portion 21. The wooden handle 3 is firmly fixed.

Further, even if the tightening of the nut 5 is loosened, the wooden handle 3 attached by the elastic force of the arch-shaped pressing plate portion 21 does not rattle, and the locking plate portion 22 at the tip of the fixed body 2 is the wooden handle 3. Since it is in contact with the tip surface of the wooden handle 2, the fixed body 2 does not rotate laterally, and the wooden handle 3 is held by the receiving plate portion 1 at the holding strip portion 14, so that it can be used safely. Is to be done.

The present invention is not limited to the above embodiment, and for example, a part or all of the side surface portion 12 of the receiving plate portion 1 may be welded so as to protrude outward from the original edge of the hoe body A. Further, the present invention can be applied to a structure in which a portion corresponding to the tip of the wooden handle 3 is formed in the hoe main body A and the wooden handle 3 is attached to the bath portion of the hoe main body A.

Further, the locking plate portion 22 of the fixed body 2 does not particularly come into contact with the tip surface of the wooden handle, and a recess may be provided at an appropriate position at the tip of the wooden handle to serve as a locking portion that fits into the recess.

A Hoe body 1 Receiving plate 11 Bottom surface 12 Side surface 13 Connecting hole 14 Holding band plate 2 Fixing body 21 Pressing plate 22 Locking plate 23 Bolt hole 3 Wood handle 31 Through hole 4 Fixing bolt 5 Nut

Claims (3)

A receiving plate with a connecting hole at an appropriate position on the bottom surface of the hoe body, with a U-shaped end face consisting of a bottom surface and both side surfaces corresponding to the three peripheral surfaces of the wooden handle. A portion is projected, and a wooden handle tip portion having a through hole corresponding to the connecting hole is provided along the receiving plate portion, and an arch-shaped pressing plate portion and a connecting hole and a bolt hole corresponding to the through hole are provided. The fixed body is placed on the surface of the wooden handle, a fixing bolt that penetrates the connecting hole, the through hole, and the bolt hole is attached, and the nut screwed to the fixing bolt is tightened to attach the wooden handle to the hoe body. Naruho's wooden handle mounting structure. The wooden handle mounting structure of a hoe according to claim 1, wherein the fixed body is provided with a locking portion in which the tip of the pressing plate portion is bent to be locked to the tip surface of the wooden handle. The wooden handle of the hoe according to claim 1 or 2, wherein a holding band plate portion is erected at the opening portion on the base end side of the receiving plate portion so as to correspond to the outer peripheral surface of the wooden handle with the bottom surface portion and both side surface portions of the receiving plate portion. Mounting structure.

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