JP3208900U - Drum transporter - Google Patents

Abstract

The present invention provides a drum can conveyance vehicle that can easily lift and convey a heavy drum can and has excellent durability. Via a vertically long main body having left and right support claws protruding from the lower front surface and a pair of levers 16 whose base is pivotally supported by a horizontal shaft 12 provided on the lower rear surface of the main body. And a wheel 14 attached to the main body so as to be swingable. The horizontal shaft 12 is provided at a position lower than the axle 15 of the wheel 14 when the main body is erected, and the lever 16 contacts the main body when the main body is tilted rearward. [Selection] Figure 3

Description

  The present invention relates to a drum can transport vehicle used for manually transporting a heavy drum can.

  In order to manually convey vertically heavy objects such as drums and gas cylinders, a hand-carried vehicle having a structure shown in FIG. 13 has been used for a long time. In this handcart, a flat support plate 52 is provided on a lower front surface of a vertically long main body 51 at a right angle to the main body 51, and a wheel 53 is provided on a lower back surface of the main body 51. The wheel 53 is pivotally supported on the main body 51 by a bracket 54.

  In this handcart, the article W is placed on the support plate 52 with the main body 51 upright as shown in FIG. 13 (A), and then the main body 51 is moved backward as shown in FIG. 13 (B). Defeated and transported. The rotation from (A) to (B) is performed around the axle 54 of the wheel 53, but since the distance L between the vertical line passing through the center of gravity of the article W and the axle 54 is constant, the article W When the weight of is increased, there is a problem that a large force is required to lift the conveyed object W while tilting the main body 51 backward from the state (A) to the state (B). In addition, there is a problem that it is not easy to place a heavy object to be transported W on the support plate 52.

  Therefore, as shown in FIG. 14, there is proposed a hand-carried vehicle in which a wheel 53 is slidably attached to a bracket 55 on the back surface of the main body 51 via a lever 56 (Patent Documents 1 and 2). In this structure, since the wheel 53 can be brought into contact with the main body 51 in the state (A), the distance L between the vertical line passing through the center of gravity of the conveyed object W and the axle 54 can be reduced, as shown in FIG. Compared to the conventional structure, the force required to lift the article W while tilting the main body 51 backward can be slightly reduced.

  However, since the rotation from (A) to (B) in FIG. 14 is also performed around the axle 54 that is distant from the main body 1, the force required to lift the article W to be conveyed while the main body 1 is tilted backward is sufficient. I couldn't make it smaller.

  Further, in the handcart of Patent Documents 1 and 2, when the lever 56 rotates clockwise in the state of FIG. 14B, the main body 51 comes into contact with the floor surface and cannot be transported. 57 is provided to restrain the rotation of the lever 56. For this reason, when the main body is brought down from the state (A) to the state (B), a large impact load acts on the locking portion 57. In addition, during conveyance in the state of (B), the distal end portion of the lever 56 is fixed to the main body 51 by the locking portion 57 and is in a cantilever state. To do. For this reason, when used repeatedly, the lever 56 may be deformed, or the connecting shaft 58 and the locking portion 57 at the tip of the lever 56 may be damaged, resulting in a problem in durability.

Japanese Utility Model Publication No. 55-32293 Japanese Utility Model Publication No. 55-32294

  Accordingly, an object of the present invention is to solve the above-mentioned problems of the prior art, and to provide a drum can transport vehicle that can easily lift and transport a heavy drum can and is excellent in durability.

  In order to solve the above problems, the drum can transport vehicle of the present invention includes a vertically long main body in which left and right support claws for receiving the bottom surface of the drum can protrude from the lower front surface, and a horizontal body provided on the lower rear surface of the main body. And a wheel attached to the main body through a pair of levers whose base is pivotally supported by the horizontal shaft so that the main shaft can be pivoted. It is provided in the position which becomes low.

  In a preferred embodiment, the lever has a shape in which the upper surface of the lever contacts the back surface of the main body when the main body is tilted backward. A hooking claw that engages with the upper edge of the drum can is provided on the upper front surface of the main body. Further, an auxiliary wheel mounting portion is formed at a position above the horizontal axis on the back surface of the main body.

  In the drum can carriage of the present invention, the horizontal shaft that pivotally supports the base of the lever is provided at a position lower than the wheel axle when the main body is upright. The center of rotation of the main body when the drum is lifted by tilting backward is the horizontal axis closer to the floor than in the past. Moreover, the wheel is in a position close to the main body. For this reason, the rotational moment required to lift the drum can is reduced, and the drum can can be easily lifted with a smaller force than before.

  Further, as will be described later, the drum can vehicle of the present invention can bring the upper surface of the lever into contact with the back surface (lower surface) of the main body when the main body is tilted backward. For this reason, unlike the conventional manual guided vehicle shown in FIG. 14, it is not necessary to provide a locking portion for restricting the rotation of the lever, and the lever is not cantilevered in the transport state. Therefore, the occurrence of failure in the lever portion can be suppressed, and the durability can be greatly improved.

It is a front view showing an embodiment of the present invention. It is a rear view which shows embodiment of this invention. It is a right view which shows embodiment of this invention. It is an AA arrow line view of FIG. It is a BB arrow line view of FIG. It is explanatory drawing of a hook nail | claw. It is a side view which shows the state which made the main body contact the drum can. It is a side view which shows the state which fell the main body a little back and inclined the drum can. It is a side view which shows the state which fell the main body further back and inserted the support nail into the bottom face of the drum. It is a side view which shows a conveyance state. It is a side view which shows the conveyance state which changed the auxiliary wheel. It is explanatory drawing of a movement of the lever when a main body is tilted back. It is explanatory drawing which shows a prior art. It is explanatory drawing which shows the prior art of a patent document description.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  1 is a front view showing an embodiment of the present invention, FIG. 2 is a rear view thereof, and FIG. 3 is a side view thereof. In these drawings, reference numeral 1 denotes a vertically long main body having a structure in which left and right main pillars 2 and 2 made of steel pipes and a central middle pillar 3 are connected by upper and lower connecting members 4 and 5 extending in the horizontal direction. As shown in FIG. 2 and FIG. 4, the middle column 3 is in a position slightly retracted from the left and right main columns 2 and 2, and between these main columns 2 and 2 and the middle column 3, Support bands 6 and 7 bent according to the curvature are provided on the upper and lower sides. The support bands 6, 7 can be made of band steel.

  A handle 8 is provided at the upper end of the main body 1. In addition, left and right support claws 9 for receiving the bottom surface of the drum can protrude from the lower front surface of the main body 1. The support claws 9 are welded to the lower ends of the left and right main pillars 2 and 2 at an angle that is obliquely downward. As will be described later, the drum can be transported with the left and right support claws 9 supporting the left and right portions of the bottom surface and the side surfaces supported by the support bands 6 and 7.

  A hooking claw 10 that engages with the upper edge of the drum can is provided on the upper portion of the main body 1. As shown in FIG. 6, the hooking claw 10 has a hook shape, and its base portion is structured to slide up and down the middle column 3, and an adjustment screw 11 for adjusting the height of the base portion is attached to the lower surface of the base portion. ing. For this reason, the hooking claw 10 can be lifted by hand as shown in FIG. 6A, and can be engaged with the upper edge of the drum can as shown in FIG. Yes.

  A horizontal shaft 12 is provided on the lower back surface of the main body 1. As shown in FIGS. 3 and 4, brackets 13 having a U-shaped cross section are welded slightly above the lower ends of the left and right main pillars 2 and 2, and the horizontal shaft 12 is supported by these brackets 13. .

  Reference numeral 14 denotes a pair of left and right wheels, and an axle 15 thereof is slidably attached to the main body 1 via a pair of left and right levers 16 whose bases are pivotally supported by the horizontal shaft 12. The lever 16 of this embodiment has a substantially fan shape that extends from the horizontal shaft 12 side toward the axle 15 side. Therefore, as will be described later, when the main body 1 is tilted backward, the upper surface 17 of the lever 16 comes into contact with the back surface of the main body 1 (see FIG. 8).

  In the present invention, as shown in FIG. 3, the horizontal shaft 12 is provided at a position lower than the axle 15 of the wheel 14 when the main body 1 is upright. Therefore, the center line of the lever 16 is inclined so as to become lower from the axle 15 toward the horizontal axis 12.

  An auxiliary wheel mounting portion 18 is formed at a position above the horizontal shaft 12 on the back surface of the main body 1. The auxiliary wheel mounting portion 18 is provided in each of the left and right main pillars 2 and 2 and includes a plurality of auxiliary wheel mounting holes 19 in the vertical direction. Therefore, any auxiliary wheel mounting hole 19 can be selected and the auxiliary wheel 20 can be attached.

  Next, the usage method of the drum can conveyance vehicle of this invention is demonstrated. First, as shown in FIG. 7, the main body 1 is placed at a position in contact with the drum can, and the hook 1 is placed on the front side of the drum can as shown in FIG. At the position, hook it on the upper edge of the drum.

  Next, as shown in FIG. 8, when the main body 1 is tilted slightly rearward, the drum can slightly tilts rearward with the front side in contact with the floor surface. In this state, when the axle 15 is pushed in the direction of the drum can with the foot, the support claws 9 on both sides of the main body 1 enter the gap formed between the both sides of the bottom surface of the drum can and the floor surface. At this time, the horizontal shaft 12 moves slightly below the state shown in FIG. 7 around the axle 15, so that the support claw 9 moves so as to sink under the drum can. Therefore, a heavy drum can can be easily placed on the support claw 9.

  Next, as shown in FIG. 9, when the main body 1 is further tilted backward, the horizontal shaft 12 moves further together with the lever 16. The main body 1 rotates about the horizontal axis 12 and the drum can also be tilted greatly and supported by the support bands 6 and 7, and the upper surface 17 of the lever 16 is in contact with the back surface of the main body 1. As described above, in the drum can transport vehicle of the present invention, the initial rotation center of the main body 1 is the horizontal shaft 12 at a low position, so that the main body 1 can be easily tilted while slightly lifting the drum can. .

  In the state shown in FIG. 9, the upper surface of the lever 16 comes into contact with the main body 1, and the lever 16 and the main body 1 are integrated. Therefore, if the main body 1 is further tilted backward, the drum can can be lifted as shown in FIG. . A member for contacting the upper surface of the lever 16 may be attached to the back surface of the main body 1. The rotation center of the main body 1 in the state of FIG. 9 is the axle 15, but the axle 15 is closer to the main body 1 than the initial position of FIG. 7, so that the distance from the rotation center to the center of gravity can be made sufficiently small. In addition, since the rotational moment when the drum can is lifted can be reduced, a heavy drum can can be lifted easily.

  Unlike the conventional structure shown in FIG. 14, the lever 16 is in close contact with the main body 1 in the state shown in FIGS. 9 and 10. Since no load is generated, there is no risk of failure even after long-term use. The movement of the lever 16 when the main body described above is tilted backward is shown in FIG.

  In addition, the auxiliary wheel 20 can be attached to the auxiliary wheel mounting part 18 as needed. Depending on the type and weight of the drum, the attachment position of the auxiliary wheel 20 to the auxiliary wheel mounting portion 18 can be changed as shown in FIG. 11 to change the inclination angle of the main body 1 and the height of the handle 8.

  As described above, the drum can transporting vehicle of the present invention can lift and transport a heavy drum can easily and has an advantage of excellent durability, so that its practical value is extremely large.

1 Body (Embodiment)
2 Main pillar 3 Middle pillar 4 Connecting member 5 Connecting member 6 Supporting band 7 Supporting band 8 Handle 9 Supporting claw 10 Hooking claw 11 Adjustment screw 12 Horizontal shaft 13 Bracket 14 Wheel 15 Axle 16 Lever 17 Upper surface 18 of lever Auxiliary wheel mounting part 19 Auxiliary wheel mounting hole 20 Auxiliary wheel 51 Main body (prior art)
52 Support plate 53 Wheel 54 Bracket 55 Bracket 56 Lever

Claims (4)

A vertically long main body with left and right support claws that receive the bottom of the drum can protruding from the lower front,
A horizontal axis provided on the lower back surface of the main body,
A wheel attached to the main body through a pair of levers whose base is pivotally supported by the horizontal shaft;
A drum transport vehicle, wherein the horizontal shaft is provided at a position lower than the wheel axle when the main body is erected.   The drum can conveying vehicle according to claim 1, wherein the lever has a shape in which an upper surface of the lever comes into contact with a back surface of the main body when the main body is tilted backward.   The drum can conveyance vehicle according to claim 1 or 2, wherein a hooking claw that engages with an upper end edge of the drum can is provided on an upper front surface of the main body.   The drum can transportation vehicle according to any one of claims 1 to 3, wherein an auxiliary wheel mounting portion is formed at a position above the horizontal axis on the back surface of the main body.