Shovel set

Abstract

To provide a shovel set in which a form of a spoon portion can be easily changed.SOLUTION: A shovel set 1 according to an aspect of the present invention includes: a shovel body 10 having a shaft portion 11 and a base spoon portion 12 fixed to the shaft portion 11; and extension members 20A, 20B having a mounting groove 21 fitted to an outer edge of the base spoon portion 12.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a scoop set.

Background Art

[0002] Scoops are used in various operations. Also, various scoops are provided with different shapes and sizes of the tip spoon part, lengths of the shaft part, shapes of the grip part, etc., and the scoop to be used is selected according to the content of the operation. It has also been proposed to make each part of the scoop separable to enable replacement of the spoon part, adjustment of the length of the shaft part, etc. (see, for example, Patent Document 1). In the present application, the name "scoop" is not limited to the scoop defined in JIS-A8902 (1988) (the one with a round shoulder of the spoon part), and is used as a general term for, for example, a shovel (the one with a flat shoulder of the spoon part) defined in the same standard and working tools similar to the same standard.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] If the spoon part is configured to be replaceable, the connection strength between the spoon part and the shaft part may become insufficient. As required in the JIS regulations, the fixation of the spoon part and the shaft part of the scoop is important. Although there is a method to solve this problem by devising the connection structure between the spoon part and the shaft part, there is a disadvantage that the replacement work of the spoon part becomes complicated in order to increase the strength of the connection structure.

[0005] Therefore, an object of the present invention is to provide a scoop set that can easily change the form of the spoon part.

Means for Solving the Problems

[0006] A shovel set according to one aspect of the present invention comprises a shovel body having a shaft portion and a base spoon portion fixed to the shaft portion, and an expansion member having a mounting groove that fits onto the outer edge of the base spoon portion.

[0007] The aforementioned shovel set may further include a detachment prevention pin that penetrates the base spoon portion and the extension member.

[0008] In the above-described shovel set, the anti-detachment pin may pass through the base end of the base spoon portion.

[0009] In the aforementioned shovel set, the base spoon portion may have a pointed tip. [Effects of the Invention]

[0010] According to the present invention, the shape of the spoon portion can be easily changed. [Brief explanation of the drawing]

[0011] [Figure 1] This is a front view showing the configuration of a shovel set according to one embodiment of the present invention. [Figure 2] This is a partially enlarged side view showing the shovel body in Figure 1 with the first extension member attached. [Figure 3] Figure 2 is a cross-sectional view of the shovel set along line XX. [Figure 4] This is a cross-sectional view corresponding to Figure 3, showing the shovel body in Figure 1 with the second extension member attached. [Modes for carrying out the invention]

[0012] Embodiments of the present invention will be described below with reference to the drawings. Figure 1 is a schematic diagram showing the configuration of a shovel set 1 according to one embodiment of the present invention.

[0013] The shovel set 1 comprises a shovel body 10, a plurality of extension members (first extension member 20A and second extension member 20B), and a detachment prevention pin 30. The shovel set 1 can be used with the shovel body 10 alone, or, as shown in Figure 2, with any of the first extension member 20A, second extension member 20B, and third extension member attached to the shovel body 10.

[0014] The shovel body 10 has a shaft portion 11, a base spoon portion 12 fixed to the tip of the shaft portion 11, and a grip portion 13 fixed to the base end of the shaft portion 11.

[0015] The shaft portion 11 is formed from, for example, a wooden rod, a metal or resin pipe, and extends in a straight line. The shaft portion 11 is not particularly limited, but generally has a circular cross-section. The length of the shaft portion 11 can be appropriately selected, but for example, it may be 30 cm or more and 80 cm or less. The shaft portion 11 may also have an extendable telescopic structure, an extendable segmented structure, or the like.

[0016] The base spoon portion 12 provides a concave scooping surface on its surface side to facilitate the loading of soil and other materials. For this reason, it is preferable that the base spoon portion 12 is concavely curved or bent in both the axial cross-section and the cross-section perpendicular to the axial direction of the shaft portion 11. The base spoon portion 12 can be formed from, for example, a resin molded body or a pressed steel plate. The base spoon portion 12 has a shaft fixing portion 121 that fits onto the outer circumference of the tip of the shaft portion 11, and a footrest portion 122 formed by bending the base end edge of the base spoon portion 12 outwards. The base spoon portion 12 also has a base pin hole 123 into which a detachment prevention pin 30 is inserted.

[0017] Preferably, the base spatula part 12 does not have a widened portion from the proximal end side toward the distal end side in order to enable attachment of the extension members 20A and 20B. Specifically, the base spatula part 12 is preferably formed in a sword tip shape, that is, the outer edge of the base spatula part 12 preferably has a pair of side edges with a constant interval or slightly decreasing toward the tip, and a tip edge that forms the tip of the base spatula part 12 into a mountain shape. The side edges of the base spatula part 12 are preferably arc-shaped with a constant curvature when viewed from the side in order to facilitate attachment of the extension members 20A and 20B.

[0018] The maximum width of the base spatula part 12 is preferably 10 cm or more in order to form the shaft fixing part 121 and the footrest part 122, and preferably m or less so that it can be used in a narrow side groove or the like. The length of the base spatula part 12 can be, for example, 15 cm or more and 25 cm or less. The plate thickness of the base spatula part 12 can be set relatively large compared to the size of the base spatula part 12 itself in consideration of the attachment of the extension members 20A and 20B. Specifically, the plate thickness of the base spatula part 12 can be 1.2 mm or more and 2.5 mm or less.

[0019] The shaft fixing part 121 can have the same configuration as that in a conventional scoop. The footrest part 122 can also have the same configuration as that in a conventional scoop, but is preferably formed relatively large so that it is easy to use even when the extension members 20A and 20B are attached. Further, the footrest part 122 can also serve to abut against the extension members 20A and 20B and prevent the base spatula part 12 from being strongly pushed into the extension members 20A and 20B and coming off. The base pin hole 123 is preferably formed at the proximal end side end of the base spatula part 12 (for example, within 1 / 4 of the length of the scooping surface from the proximal edge).

[0020] The grip part 13 can have the same configuration as that in a conventional scoop. As a specific example, it can have a configuration including a rod-shaped grip 131 arranged perpendicular to the central axis of the shaft part 11 and that can be gripped by a person, and a Y-shaped connection part 132 that holds both ends of the grip 131 and is fixed to the shaft part 11. Note that the grip part 13 may be omitted.

[0021] The extension members 20A and 20B have mounting grooves 21 that fit onto the outer edges (side edges and tip edges) of the base spatula portion 12. By being attached to the base spatula portion 12, the scooping surface of the base spatula portion 12 is expanded or the base spatula portion 12 is covered with a larger scooping surface. The extension members 20A and 20B can be formed of resin, metal, or the like. In the present embodiment, the extension members 20A and 20B have a configuration including an extension body 22 formed by press-forming a steel plate, and a belt-like body 23 that has a stepped cross-section and forms the mounting groove 21 between itself and the extension body 22 by being welded to the extension body 22. Further, the extension members 20A and 20B are formed so as to be coaxial with the base pin hole 123 when attached to the base spatula portion 12, and have extension pin holes 24 into which the detachment prevention pin 30 is inserted.

[0022] The first extension member 20A has a shape conforming to the spatula portion of a square spatula defined in JIS - A8902 (1988). As shown in FIG. 3, the first extension member 20A is formed by welding the belt-like body 23 to the back surface of the square extension body 22 and is attached so as to cover the base spatula portion 12. The first extension member 20A is formed by raising the base edge and both side edges to the surface side and has a retaining portion 25 that makes it difficult for earth and sand to spill. This retaining portion 25 can be formed so as to prevent the base spatula portion 12 from being pushed into the mounting groove 21 more strongly than necessary by abutting against the foothold portion 122 of the base spatula portion 12. A reinforcing member may project at the portion where the retaining portion 25 abuts against the foothold portion 122. By providing such a reinforcing member, the steel plate forming the first extension member 20A can be reinforced and the degree of freedom of the shape on the surface side of the first extension member 20A can be increased.

[0023] The second extension member 20B has an outer shape similar to the spoon portion of a shovel as specified in JIS-A8902 (1988), but the area where the base spoon portion 12 is placed is cut out. In other words, the second extension member 20B does not cover the base spoon portion 12, but forms an additional scooping surface on the outside of the base spoon portion 12. Also, as shown in Figure 4, the second extension member 20B is bent so that the inner edge where the mounting groove 21 is provided is offset towards the surface side to the extent that it does not protrude from the outer edge. This prevents the thickness of the large spoon portion formed by attaching the second extension member 20B to the base spoon portion 12 from becoming excessively large, and also allows the tip edge of the second extension member 20B to be positioned on the central axis of the shaft portion 11, making it easier to apply force during excavation. Furthermore, the second extension member 20B has a number of openings 26 on the scooping surface. This allows, for example, when cleaning a drainage ditch, to discharge water and scoop up only foreign matter.

[0024] The anti-detachment pin 30 penetrates the base spoon portion 12 and the expansion members 20A and 20B, preventing the expansion members 20A and 20B from falling off the base spoon portion 12. It is preferable to use an anti-detachment pin 30 that has its own anti-detachment function, such as a bent pin, snap pin, or ball lock pin as shown in the figure.

[0025] With this configuration, the shovel set 1 allows for easy modification of the shape of the shovel head by attaching and detaching the extension members 20A and 20B. Therefore, using the shovel set 1 reduces the amount of luggage compared to carrying multiple shovels.

[0026] Although embodiments of the present invention have been described above, the shovel set according to the present invention is not limited to the embodiments described above. The number of extension members included in the shovel set according to the present invention can be any number of one or more, and the shape of the extension members can also be arbitrarily changed, for example, they may have a pointed tip shape like that of a round shovel. In the shovel set according to the present invention, the footrest portion of the base spoon portion may be omitted, or a footrest portion may be provided on the extension member. The shovel set according to the present invention may not have a detachment prevention pin, and the extension member may be attached to the shovel body by fitting it into the mounting groove of the base spoon portion. [Explanation of symbols]

[0027] 1 Shovel Set 10 Shovel body 11 Shaft 12 Base spoon section 13 Grip 121 Shaft fixing part 122 Footrest 123 Base pin holes 20A First expansion member 20B Second expansion member 21 Mounting groove 22 Expansion Unit 23. Band-shaped body 24 expansion pin holes 25 Retaining walls 26 Aperture 30 Anti-detachment pins

Claims

1. A shovel body having a shaft and a base spoon portion fixed to the shaft, An expansion member having a mounting groove that fits onto the outer edge of the base spoon portion, A detachment prevention pin consisting of a bent pin that penetrates the base spoon portion and the expansion member, Equipped with, The aforementioned extension member has a retaining wall formed by raising its base edge and both side edges toward the surface, The base spoon portion is formed by bending the end on the base side outwards, and the shovel set has a footrest portion that contacts the outside of the retaining wall.

2. The shovel set according to claim 1, wherein the anti-detachment pin penetrates the base end of the base spoon portion.

3. The scoop set according to claim 1 or 2, wherein the base scoop portion has a pointed tip.

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