scoop

Abstract

We provide shovels that reduce physical strain. [Solution] The shovel 1 has a handle portion 20, a gripping portion 30 at one end of the handle portion 20, a rotating portion 50 at the other end of the handle portion 20, and a spoon portion 40 that is rotatably provided via the rotating portion 50. The spoon portion 40 is equipped with a biasing member and is rotatable between a first position in which at least the shoulder side of the spoon portion 40 is in contact with the other end of the handle portion 20, and a second position in which the shoulder side is separated from the other end of the handle portion 20, and is provided to elastically return from the second position to the first position.

Description

Technical Field

[0001] The present disclosure relates to a shovel.

Background Art

[0002] Shovels are used for a variety of work. For example, a shovel used in civil engineering work includes a handle, a scoop fixed to a tip end of the handle, and a grip provided on an opposite side of the scoop. A shovel is used in such a manner that the tip end of the scoop is pierced into earth and sand, a foot is put on a shoulder portion of the scoop to step down, and the earth and sand is dug up. When carrying the dug-out earth and sand, or filling the earth and sand into various storage containers such as sandbags, it is necessary to repeatedly perform a series of operations such as bending down to scoop the earth and sand, raising the posture while lifting the grip, and lifting the earth and sand placed on the scoop. The operator has to support the weight of both the shovel and the earth and sand, which has been a work with a large physical burden.

[0003] For example, Patent Document 1 proposes that an excavation assisting device having a roller is attached to a shovel to reduce the physical burden on an operator.

Prior Art Literature

Patent Literature

[0004]

Patent Literature 1

Summary of Invention

Problem to be Solved by Invention

[0005] In the configuration disclosed in Patent Document 1, unless the roller is grounded to the ground for use, the roller cannot be used as a wheel or a fulcrum of a lever, and the physical burden cannot be reduced. Thus, there is a problem that usage modes and work postures are restricted.

[0006] This disclosure has been made in view of the above-mentioned problems, and its purpose is to provide a shovel that can reduce the physical burden on workers and improve work efficiency. [Means for solving the problem]

[0007] A solution of the present disclosure for achieving the above objective is a shovel having a handle, a gripping portion provided at one end of the handle, a rotating portion provided at the other end of the handle, and a spoon portion rotatably provided via the rotating portion, wherein the spoon portion is provided with a biasing member between it and the handle, and is rotatable between a first position in which at least the shoulder side of the spoon portion is in contact with the other end of the handle and a second position in which the shoulder side is separated from the other end of the handle, and is provided to be biased by the biasing member to elastically return from the second position to the first position.

[0008] Furthermore, in the scoop, the spoon portion is provided with a lid portion on the shoulder side that covers the loading surface of the object to be transported, and in the first position, it is preferable that the other end of the handle portion abuts against the lid portion.

[0009] Furthermore, in the shovel, it is preferable that the lid portion is provided spanning both sides of the width direction of the spoon portion, perpendicular to the extension direction of the handle portion.

[0010] Furthermore, in the shovel, the rotating part is preferably provided with a pivot shaft that extends in a direction perpendicular to the extension direction of the handle, and the pivot shaft is connected to the handle and is rotatably attached to the spoon part.

[0011] Furthermore, in the shovel, it is preferable that the biasing member is a torsion coil spring having a coil portion and a pair of arms extending from both ends of the coil portion, with one of the arms being locked to the spoon portion and the other arm being locked to the handle portion.

[0012] Furthermore, in the scoop, it is preferable that the spoon portion is provided with a locking portion for securing a bag-like body and has an opening on the shoulder side.

[0013] Furthermore, in the shovel, it is preferable that the handle portion is provided with an operating rod that is detachable from the spoon portion and extends in the direction of extension of the handle portion, and that the spoon portion maintains the first position when the operating rod is engaged with the spoon portion, and assumes the second position when the operating rod is detached from the spoon portion. [Effects of the Invention]

[0014] According to this disclosure, it is possible to reduce the physical strain when using a shovel. [Brief explanation of the drawing]

[0015] [Figure 1] This is a schematic front view showing a shovel according to an embodiment of the present disclosure. [Figure 2] This is a schematic side view of the aforementioned shovel. [Figure 3] This is a cross-sectional view of AA in Figure 1. [Figure 4] Figure 3 is a cross-sectional view of BB. [Figure 5] This is a schematic cross-sectional view showing the rotation of the spoon portion of the aforementioned shovel. [Figure 6] This is an explanatory diagram showing an example of how the aforementioned shovel is used. [Figure 7] This is an explanatory diagram showing an example of how the aforementioned shovel is used. [Modes for carrying out the invention]

[0016] A shovel according to an embodiment of this disclosure will be described with reference to the drawings. Figures 1 to 4 schematically show a shovel 1 according to an embodiment of this disclosure, where Figure 1 is a front view, Figure 2 is a side view, Figure 3 is a cross-sectional view AA in Figure 1, and Figure 4 is a cross-sectional view BB in Figure 3.

[0017] In the present disclosure, the term "scoop" is not limited to scoops defined in JIS-A8902 (1988) (those with rounded shoulders at the blade portion), but is used as a general term that includes, for example, shovels specified in the same standard (those with flat shoulders at the blade portion) and working tools similar to those specified in the standard.

[0018] As shown in Figure 1, the scoop 1 includes a shank 20, a blade portion 40 for scooping up conveyed objects such as earth and sand, a grip portion 30 at one end of the shank 20, and a rotating portion 50 at the other end of the shank 20.

[0019] The shank 20 is formed of, for example, a wooden bar, a metal or resin pipe, or the like, and is provided to be long in the axial direction X which is the extending direction. The length of the shank 20 is not particularly limited, but is preferably, for example, 60 cm to 100 cm.

[0020] The grip portion 30 is a portion to be gripped when using the scoop 1, and is joined to one end of the shank 20. At the other end of the shank 20, the blade portion 40 is rotatably provided via the rotating portion 50.

[0021] The blade portion 40 includes a concave loading surface 41 for placing earth and sand or the like on a surface side thereof, and a tip end portion 42 that can be pierced into earth and sand or the like is provided on a tip end side opposite to the grip portion 30 side. The shape of the tip end portion 42 is not particularly limited, and may be a pointed shape, a rounded shape, or a linear shape.

[0022] As shown in Figure 3, the blade portion 40 is preferably provided to be concavely curved or bent in at least a cross section along the width direction Y orthogonal to the axial direction X. The blade portion 40 can be formed by, for example, press working of a steel plate, a resin molded product, or the like. The plate thickness of the blade portion 40 is preferably, for example, 1.5 mm to 2.0 mm.

[0023] The spoon portion 40 has a lid portion 44 on the shoulder portion 43 side opposite the tip portion 42, which covers the loading surface 41. The lid portion 44 is formed from a flat plate-shaped member. The lid portion 44 is formed in a rectangular shape that is long in the width direction Y and is fixed to the spoon portion 40. In the exemplary embodiment, the lid portion 44 is stretched across both side edges of the concavely curved spoon portion 40 and is integrally joined to the spoon portion 40. The lid portion 44 only needs to be large enough to cover the shoulder portion 43 side of the loading surface 41 of the spoon portion 40, and covers an area of ​​less than half of the loading surface 41.

[0024] As shown in Figure 4, the scoop portion 40 has an opening 45 on the shoulder portion 43 side. In the exemplary embodiment, the opening 45 is surrounded by the loading surface 41 and the lid portion 44 of the scoop portion 40, and is open in both directions: towards the loading surface 41 and towards the gripping portion 30. There is no rise from the loading surface 41 on the shoulder portion 43 side of the loading surface 41. The soil and sand scooped up by the scoop portion 40 can be discharged from the loading surface 41 through the opening 45.

[0025] The outer surface 46 of the spoon portion 40 is provided with a locking portion 47 for securing a bag-like object such as a sandbag. The locking portion 47 is provided on the outer surface 46 shown in Figure 2 and on the opposite outer surface 46. The locking portion 47 is formed, for example, in a hook shape, so that it can be inserted into or hooked onto a bag-like object to secure it.

[0026] Figure 5 is a schematic cross-sectional view of the scoop portion 40 during rotation in the shovel 1 shown in Figure 4, and is a cross-sectional view equivalent to BB of the scoop portion 40. As shown in the figure, the scoop portion 40 is rotatably provided via a rotating portion 50. The rotating portion 50 is equipped with a rotating shaft 51 that extends in a direction perpendicular to the axial direction X, which is the extension direction of the handle portion 20.

[0027] As shown in Figure 1, the pivot shaft 51 is connected to a connecting portion 21 provided at the other end of the handle portion 20 and is arranged along the width direction Y. The pivot shaft 51 is positioned on the lid portion 44, closer to the tip portion 42 of the spoon portion 40. Furthermore, as shown in Figure 3, both ends of the pivot shaft 51 are rotatably supported by mounting pieces 49 protruding from both side edges of the spoon portion 40.

[0028] As shown in Figures 4 and 5, a biasing member 48 is provided between the spoon portion 40 and the handle portion 20. In the exemplary embodiment, the biasing member 48 is a torsion coil spring having a coil portion, mounted on the pivot shaft 51. One arm portion 481 extending from the coil portion of the biasing member 48 is fixed on the lid portion 44 of the spoon portion 40, and the other arm portion 482 is fixed to the connecting portion 21 of the handle portion 20. The biasing member 48 biases the spoon portion 40 in a direction that brings the one arm portion 481 and the other arm portion 482 closer together, and in the direction of the connecting portion 21 of the handle portion 20.

[0029] As shown in Figure 2, the shovel 1 has an operating rod 60 that extends in the axial direction X of the handle 20 and is arranged parallel to the handle 20. The operating rod 60 is shorter than the handle 20 and is supported by the handle 20 via a support portion 61 located closer to the grip portion 30. The support portion 61 is fixed to the handle 20, and the operating rod 60 passes through it, supporting the operating rod 60 so that it can slide.

[0030] The tip 64 of the operating rod 60 is located on the X1 side of the axial direction X, opposite to the support portion 61. The tip 64 of the operating rod 60 is designed to be able to engage with and disengage from the spoon portion 40. In the exemplary embodiment, one arm 481 of the biasing member 48 is fixed to the outer surface of the lid portion 44 of the spoon portion 40, and a cylindrical holding portion 441 capable of holding the tip 64 of the operating rod 60 is provided on the inner surface of the lid portion 44. The holding portion 441 may be a rounded cylinder or a rectangular cylinder, as shown in Figure 3.

[0031] Furthermore, the operating rod 60 is provided with an operating part 62 for releasing the tip portion 64 from the holding portion 441. As shown in Figure 2, a biasing spring 63 is interposed between the operating part 62 and the support portion 61, biasing the operating rod 60 in the direction of the tip portion 64 (the X1 direction in the axial direction X). When the operating part 62 and the support portion 61 are gripped, the biasing spring 63 contracts and the operating rod 60 slides in the direction of the gripping portion 30 (the X2 direction in the axial direction X), releasing the operating rod 60 from the holding portion 441. On the other hand, when the hand is released from the operating part 62, the biasing spring 63 extends, and the operating rod 60 slides in the X1 direction due to its biasing force.

[0032] In Figure 4, the spoon portion 40 is in a first position where the lid portion 44, provided on the shoulder portion 43 side, is in contact with the connecting portion 21 of the handle portion 20. The tip portion 64 of the operating rod 60 is inserted into and held by the holding portion 441, and the operating rod 60 is locked to the spoon portion 40. Because the operating rod 60 is held by the holding portion 441, the lid portion 44 of the spoon portion 40 is sandwiched between the operating rod 60 and the handle portion 20, and the first position of the spoon portion 40 is maintained.

[0033] By gripping the operating section 62 and releasing the tip 64 of the operating rod 60 from the holding section 441, the spoon section 40 becomes rotatable around the pivot axis 51. The spoon section 40, which was in the first position, can be moved to a second position, rotated relative to the handle section 20, as shown in Figure 5. In this case, for example, by operating the operating section 62 and releasing the operating rod 60 from the holding section 441, the spoon section 40 can be moved to the second position against the biasing force of the biasing member 48 by pressing down on the shoulder 43 side of the spoon section 40 with the foot.

[0034] In the second position, the lid portion 44, which is provided on the shoulder portion 43 side of the spoon portion 40, is separated from the connecting portion 21 of the handle portion 20. The spoon portion 40 is rotatable relative to the handle portion 20 by a rotation angle α, and the space between the arms 481 and 482 of the biasing member 48 also expands by a rotation angle α. When the force holding the spoon portion 40 is released, the spoon portion 40 elastically returns from the second position to the first position due to the biasing force of the biasing member 48.

[0035] Figures 6 and 7 are schematic diagrams illustrating an example of how the shovel 1 is used. As shown in Figure 6, the shovel 1 can be used by attaching a bag-like object such as a sandbag 80 to the opening 45 side of the spoon-shaped part 40 using the locking part 47 of the spoon-shaped part 40.

[0036] When excavating soil S, the shovel 1 is used with the operating rod 60 locked to the holding part 441 to restrict the rotation of the spoon part 40. For example, the tip 42 of the spoon part 40 can be thrust into the soil S, and the shoulder part 43 can be placed on the foot and stepped on to dig up the soil S.

[0037] Sandbags are civil engineering materials used by filling a sandbag (soil or sand) S into a sandbag 80. Because they can restrict the movement of water, soil, etc. by stacking them, they are used in a variety of construction sites. In the shovel 1 according to this embodiment, for example, as shown in Figure 6, a sandbag 80 can be attached by locking it to the locking part 47 of the spoon part 40, and the work of filling it with soil S can be performed.

[0038] At that time, by scooping up the soil S, placing the spoon part 40 on the ground, and gripping the operating part 62, the operating rod 60 can be detached from the holding part 441. Since the spoon part 40 is rotatable, by pressing down on the shoulder part 43 or the lid part 44 of the spoon part 40, the spoon part 40 can be rotated to the second position as shown in Figure 7. The shoulder part 43 side of the spoon part 40 is tilted lower than the tip part 42, and the soil S scooped up by the spoon part 40 can be easily stored in the sandbag 80 through the opening 45. The rotation angle α of the spoon part 40 in the second position is arbitrary, and the spoon part 40 can be used by pressing it to achieve the desired angle.

[0039] After filling the sandbag 80 with soil S from the scoop section 40, the user releases the foot that was holding the scoop section 40, and the scoop section 40 elastically returns to its first position. Next, when the user releases their hand from the operating section 62, the tip 64 of the operating rod 60 is inserted into the holding section 441 of the scoop section 40. As a result, the scoop section 40 maintains its first position and its rotation is restricted, allowing the user to resume scooping soil S.

[0040] This eliminates the need for the strenuous tasks of traditional work, such as loading soil onto the scoop and lifting it, or moving the scoop loaded with soil to the location of the sandbag. Therefore, using Shovel 1 can reduce physical strain and significantly increase work efficiency.

[0041] In addition, the configuration of each part of the shovel 1 according to this disclosure is not limited to those shown in the above embodiment, and can be implemented in various forms. For example, the biasing member 48 provided on the spoon portion 40 is not limited to a torsion coil spring, and other biasing springs may be used. The pivot shaft 51 of the rotating portion 50 is not limited to being provided at the aforementioned mounting position, but may be attached at any position on the shoulder portion 43 side half of the spoon portion 40. The material to be transported by the shovel 1 is not limited to soil and sand, but can be anything. Also, the bag-like body that is locked to the locking portion 47 is not limited to a sandbag 80, but can be any kind of bag.

[0042] This disclosure is not limited to the embodiments described above, and various modifications are possible without departing from the technical essence thereof. All technical matters included in the technical idea described in the claims are subject to this disclosure. The embodiments described above are preferred examples, but various modifications can be realized from the disclosed content, and such modifications are also included in the technical scope described in the claims.

[0043] The following additional information is disclosed regarding the technical details described in the embodiments described above.

[0044] (Note 1) The handle and, A gripping portion is provided at one end of the handle portion, A rotating part provided at the other end of the handle portion, A shovel having a spoon portion that is rotatably mounted via the aforementioned rotating portion, The aforementioned spoon portion is, A biasing member is provided between the handle portion and the other portion. A shovel characterized in that it is rotatable between a first position in which at least the shoulder side of the spoon portion is in contact with the other end of the handle portion, and a second position in which the shoulder side is separated from the other end of the handle portion, and is provided to be biased by the biasing member to elastically return from the second position to the first position.

[0045] (Note 2) The shovel described in Appendix 1, The aforementioned spoon portion is provided with a lid portion on the shoulder side that covers the loading surface of the object to be conveyed. A shovel characterized in that, in the first position, the other end of the handle portion abuts against the lid portion.

[0046] (Note 3) The shovel described in Appendix 2, The shovel is characterized in that the lid portion is provided across both sides of the width direction of the spoon portion, perpendicular to the extension direction of the handle portion.

[0047] (Note 4) A shovel as described in any of the appendices 1 to 3, The rotating part is equipped with a pivot shaft that extends in a direction perpendicular to the extension direction of the handle, The shovel is characterized in that the pivot shaft is connected to the handle and is rotatably attached to the spoon portion.

[0048] (Note 5) A shovel described in any of the appendices 1 to 4, The biasing member is a torsion coil spring having a coil portion and a pair of arms extending from both ends of the coil portion. A shovel characterized in that one arm is locked to the spoon portion and the other arm is locked to the handle portion.

[0049] (Note 6) A shovel described in any of the appendices 1 to 5, The scoop is characterized in that the spoon portion is provided with a locking portion for securing a bag-like body and has an opening on the shoulder side.

[0050] (Note 7) A shovel described in any of the appendices 1 to 6, An operating rod is provided on the handle portion, which is detachable from the spoon portion and extends in the direction of extension of the handle portion. The scoop is characterized in that the first position is maintained when the operating rod engages with the scoop, and the second position is achieved when the operating rod detaches from the scoop. [Explanation of symbols]

[0051] 1 shovel 20 Handle 21 Connecting part 30 Gripping part 40 spoons 41 Loading surface 42 Tip 43 Shoulder 44 Lid 441 Holding part 45 Opening 47 Locking part 48. Biasing member 481, 482 Arm 50 Rotating parts 51. Rotary shaft 60 Control lever 80 sandbags

Claims

1. The handle and, A gripping portion is provided at one end of the handle portion, A rotating part provided at the other end of the handle portion, A shovel having a spoon portion that is rotatably mounted via the aforementioned rotating portion, An operating rod is provided on the handle portion, which is detachable from the spoon portion and extends in the direction of extension of the handle portion. The aforementioned spoon portion is, A biasing member is provided between the handle portion and the other portion. The spoon is rotatable between a first position in which at least the shoulder side of the spoon portion is in contact with the other end of the handle portion, and a second position in which the shoulder side is separated from the other end of the handle portion, and is provided to be biased by the biasing member to elastically return from the second position to the first position. The scoop is characterized in that the first position is maintained when the operating rod engages with the scoop, and the second position is achieved when the operating rod detaches from the scoop.

2. In the scoop according to claim 1, The aforementioned spoon portion is provided with a lid portion on the shoulder side that covers the loading surface of the object to be conveyed. A shovel characterized in that, in the first position, the other end of the handle portion abuts against the lid portion.

3. In the shovel according to claim 2, The shovel is characterized in that the lid portion is provided across both sides of the width direction of the spoon portion, perpendicular to the extension direction of the handle portion.

4. In the scoop according to claim 1, The rotating part is equipped with a pivot shaft that extends in a direction perpendicular to the extension direction of the handle, The shovel is characterized in that the pivot shaft is connected to the handle and is rotatably attached to the spoon portion.

5. In the scoop according to claim 1, The biasing member is a torsion coil spring having a coil portion and a pair of arms extending from both ends of the coil portion. A shovel characterized in that one arm is locked to the spoon portion and the other arm is locked to the handle portion.

6. In the scoop according to claim 1, The scoop is characterized in that the spoon portion is provided with a locking portion for securing a bag-like body and has an opening on the shoulder side.

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