JPS5853256Y2 - wheelbarrow - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to an improvement of a handcart.

Conventionally, a wheelbarrow has a frame having a handle at the rear end and a pair of left and right wheels attached to the lower side of the front end, and a load supporter fixedly attached to the front end of the frame. When transferring cargo to a position that is a certain height above the ground, such as in a light van or trunk, it is necessary to lift the cargo by hand to the height of the cargo bed, and if the cargo is heavy, such work becomes difficult. It has the disadvantage that it is extremely difficult and requires a lot of manpower.

In view of the above-mentioned circumstances, the present invention has been devised so that when loading cargo between a two-wheeled handcart and the loading platform of a light van, the load supporting body is repositioned as appropriate with respect to the frame of the handcart. Due to the lever principle, it is possible to carry out work such as stacking cargo on a loading platform with much less force than when lifting the cargo directly by hand.Furthermore, when not in use, the cargo can be supported against the frame. arbitrarily remove the body,
Alternatively, the present invention aims to provide a handcart that can be made into a thorn-like shape, and its configuration is as follows.

The present invention consists of a frame having a handle at the rear end and wheels attached to at least both left and right sides of the lower surface of the front end, and a cargo support body that can be attached to and detached from the frame and whose attachment position can be changed. Load support attachment parts are provided at two or more appropriate locations on the frame, the load support is attached to any attachment part, and the load support is attached to either one of each attachment part or the proximal end of the luggage support. The provided pivot shaft and the notched pivot engagement portion provided on the other side allow for attachment and detachment as well as rotatable attachment, and between each of the attachment portions and the luggage support, the upright posture of the luggage support with respect to the frame is maintained. This handcart is characterized by being equipped with a stomper for holding the handcart.

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

Reference numeral 1 designates a frame of a handcart, which includes a pair of left and right side bars 2, 2 formed of square pipes, etc., and an appropriate number of horizontal bars 3, 3, and 4 that connect the two side bars 2, 2. It is configured.

The rear end portions of the rods 2, 2 on both sides are appropriately bent downward,
This portion becomes a handle portion 5.5 when transporting cargo.

In the illustrated example, in order to make the frame 1 foldable and also to be used as a stepladder, the left and right side rods 2, 2 are formed separately into a front half 2a, 2a and a rear half 2b, 2b, respectively. The connecting pieces 6a, 6b and the pivot shaft 7 are connected at the central part in the length direction.
The locking rod 8 is rotatably connected to the connecting piece 6b of the rear half 2b of the side rod, and the connecting piece of the front half 2a of the side rod A locking portion 9 for locking the tip of the locking rod 8 to the frame 1 in the unfolded position and the approximately inverted V-shaped half-open position, respectively, to the frame 6a etc.
．． There are 10.

In this case, when loading/unloading or transporting cargo in the unfolded position, or when using it as a stepladder in the approximately inverted V-shaped half-open position, the locking rod 8 The shape and arrangement of the engaging portions 9 and 10 may be appropriately selected, and if necessary, an appropriate locking mechanism for maintaining each posture may be provided.

Of the horizontal bars 3, 3.4..., the horizontal bar 3.3 located near the center of the frame 1 also serves as a dog kennel when used as a stepladder, and the other horizontal bars 4... serve as steps. It is arranged so that it also serves as.

Reference numeral 11.11 denotes a wheel, which is attached via an axle 12 to a platen N3, 13 that projects downward from both sides of the front end of the frame 1.

When used as a stepladder as shown in the illustration, both of the above-mentioned placento 1
A bent long hole 14 is provided at 3° 13, and the axle 12 is inserted through the long hole 14, so that the axle 12 and the wheels 11.11 are movable so that they do not get in the way when used as a stepladder. put.

Reference numeral 15 denotes a cargo support body, which can be detachably attached, replaced, and rotated to attachment portions 16 and 17 provided at appropriate locations at the front end and intermediate portions of the frame 1.

To explain its specific structure, the mounting portion 16 at the front end of the frame 1 is attached to the inner surfaces of the left and right rods 2, 2 with a platinum 16a.
, 16a, and a pivot shaft 18 which also serves to reinforce the frame 1 is provided between the plaquen N6a and 16a, and a stomper 19, 19 is protruded to maintain the upright posture of the load support 15 at a predetermined position. It is set up.

In addition, the mounting part 17 in the middle part of the frame 1 is also attached to Platan N7a.
, 17a with pivot 20.20 and stomper 21.21
It is provided at a position where the distance from the front end of the frame 1 to the mounting portion 17 corresponds to the height of the cargo bed of a light van, etc.

On the other hand, the cargo support 15 is formed into a frame-like shape bent in a dogleg shape near its base end, and has notched pivot-engaging portions 22 at both left and right base ends that open diagonally forward and upward. ．．
22 are provided.

At the open end of the engaging portion 22, there is a swingable retaining piece 23 that closes the opening when engaged with the pivot 18 or 20.
and a locking portion 24 thereof.

Further, reference numeral 25 denotes an elastic locking piece for maintaining the fallen posture of the cargo support body 15 attached to the inner surface of the rod 2 on the side of the frame 10.

In the illustrated example, the cargo support mounting portions 16 and 17 are provided at three locations at the front end and middle portion of the frame 1, but this can be applied to the transfer of cargo to trunks, light vans, etc., which have different cargo platform heights. Similarly, baggage support mounting portions may also be provided at several other appropriate locations.

Furthermore, in the illustrated example, when unloading luggage from the loading platform of a light van, etc., onto a handcart, the rearmost horizontal bar 4 of the frame 1 is installed so that the luggage can be easily slid down in a chute type. A connector 26 is attached to connect the handcart in an inclined position to a loading platform or the like.

As will be described later, the connector 26 is removably attached to a rear door locking bracket provided near the rear end of the cargo bed of the light van, and is formed, for example, in the shape of a ring with a portion cut out, and is attached to an appropriate mounting bracket. It is attached to the horizontal beam via 27.

When using the above-mentioned handcart, the load support 15 is attached to the mounting portion 16 at the front end of the frame 1 in a position that stands upright with respect to the frame 1 during normal load carrying work.

That is, the pivot retaining portion 22.2 at the proximal end of the load support 15
2 is engaged with the pivot 18, the support 15 is rotated into an upright position and held in this position by abutting the stompers 19, 19.

Similarly to the conventional handcart, the load is supported by the load supporter 15 and the frame 1, and the rear end handle 5.5
, and push and transport it with the wheels 11.11 on the ground.

Baggage 30 is transferred from this handcart to the loading platform 32 of the light van 31.
When transshipping, first, as shown by the imaginary line in Figure 5,
The handcart is laid down in a horizontal position at the rear of the light van 31 etc., and the cargo support body 15 is attached to the front end attachment part 1.
6, and attach the front end attachment part 1 to the intermediate attachment part 1T.
The cargo 30 is supported by the support body 15 and the frame 1 in the same manner as the attachment means to the support body 15 and the frame 1.

At this time, when carrying out the work of raising the cargo following the work of transporting the cargo, the above state can be easily achieved by shifting the cargo 30 from the front end position to the rear along the frame 1 and then replacing the cargo support 15. It will be done.

Thereafter, as shown by solid lines in FIG. 5, by raising the handcart by holding the rear end handles 5, 5 of the frame 1, the luggage 30 is lifted using the front end of the frame 1 as a fulcrum. It is lifted to the height of the loading platform 32 and transferred to the loading platform 32.

By doing this, the transshipment work can be performed with much less force than when lifting the cargo directly by hand.

Further, when unloading the luggage 30 from the loading platform 32 etc. of the light van 31, such work can be easily performed by performing the operation opposite to the above, but according to the structure shown in the embodiment, using the connector 26, As shown in FIG. 6, the cargo 30 can also be unloaded using a chute.

That is, in this case, the luggage support 15 is attached to the frame front end attachment part 16 in an upright position, and the connector 26 is attached to the existing rear door locking fitting 33 etc. provided near the rear end of the cargo platform 32 of the light van 31. By engaging these, the handcart is connected to the loading platform 32 in an inclined position.

By doing this, once the cargo 30 on the loading platform 32 is shifted to the rear end position, the cargo 30 will naturally slide down along the slope of the frame 1.

Furthermore, according to the structure of the handcart shown in the embodiment, as shown in FIG. By maintaining this posture, it can also be used as a stepladder.

In this way, when used as a stepladder or folded in half when not in use, the luggage support 15 can be laid down with respect to the frame 1, and can also be optionally removed from the frame 1. Therefore, it does not become bulky or get in the way.

In addition, in the above configuration, the mounting portion 16 of the frame 1
．． The specific structure for removably and rotatably attaching the load support 15 to the load support 17 is not limited to the basic embodiment described above, and various design changes are possible.

FIG. 8 shows another embodiment of such a structure, in which a pivot engagement portion 22' provided at the proximal end of the luggage support 150 is connected to a circular hole-shaped portion 22'a. and a groove-like notch 22'b opening in a predetermined direction.
The opposing portion of the cylinder corresponding to the circular hole-shaped portion 22'a is cut out into a flat surface corresponding to the width of the groove-shaped cutout portion 22'b.

The pivot 18' or 20' can be inserted and removed from the groove-like cutout 22'b with the cargo support 15 in an inclined position relative to the frame 1.

According to the structure, the load support 15 can be engaged with and detached from the mounting portion 16 or 1T only when the load support 15 is tilted at a predetermined angle, and the load support 15 can be accidentally detached from the frame 1 in an upright or thorn-like position. It does not come off, and the structure can be easily maintained without requiring the retaining piece 23 or the like as in the basic embodiment.

Further, in the basic embodiment, a pivot is provided in each mounting portion 16, 17, and a pivot engagement portion is provided in the proximal end of the baggage support 15. A pivot shaft may be provided to protrude outward from the mounting portion 16, 17, and the bracket of each mounting portion 16, 17 may be provided with a notched engagement portion that engages the pivot shaft in a detachable and rotatable manner.

It goes without saying that the specific structure of each part of the handcart may be modified as desired without departing from the gist of the present invention.

As mentioned above, the present invention provides load support attachment portions at two or more appropriate locations on the frame of the handcart, and attaches the load support body to any of the attachment portions so as to be detachable and rotatable. Therefore, not only can you carry out normal cargo transportation work as before, but also when transferring cargo to the platform of a light van that has a certain height from the ground,
With the luggage support attached to the corresponding mounting part,
After placing the handcart in a horizontal position and supporting the load on the support body, lift the wheelbarrow directly by hand using the lever principle by holding the rear handle. It is possible to easily carry out the transshipment work with much less force than in the case of the cargo carrier, and it is also possible to easily unload the cargo from the loading platform or the like by following the reverse procedure.

Furthermore, the support body can be attached to, detached from, and rotated with respect to the mounting part, and can be maintained in an upright position by the pivot and the stomper, so the support body can securely hold the cargo during transportation or transshipment work. It has many practical effects, such as being able to support the support body, and when not in use, the support body can be laid down or removed at will, so that it does not get in the way.

[Brief explanation of drawings]

The figures show an embodiment of the present invention: Fig. 1 is an overall perspective view, Fig. 2 is an enlarged exploded perspective view of the part where the luggage support is attached, and Fig. 3 is an enlarged view of the main part with the support attached. Fig. 4 is an enlarged perspective view of the coupling attachment part; Fig. 5 is a side view showing the state of use when transferring cargo to a light van, etc.; Fig. 6 is a longitudinal sectional view.
The figure is a side view showing the state in which it is used when unloading luggage using the connector, Figure 7 is a side view showing the state in which it is used as a stepladder,
FIG. 8 is an enlarged longitudinal cross-sectional view of the main parts showing another embodiment of the present invention. 1... Frame, 15... Luggage support, 16° 17... Luggage support attachment part, 1B, 2
0.18'20'...Axis, 19.21...
... Stopper, 22.22' ... Pivot engagement part.

Claims (1)

[Scope of utility model registration request] It consists of a frame having a handle at the rear end and wheels attached to at least both left and right sides of the lower surface of the front end, and a cargo support body that can be attached to and detached from the frame and whose attachment position can be changed, Load support mounting portions are provided at two or more appropriate locations on the frame, the load support is attached to any of the attachment portions, and a pivot is provided at either one of each attachment portion or the base end of the load support. , and a notched hole-shaped pivot engagement part provided on the other side, it can be attached detachably and rotatably, and
A handcart characterized in that a stomper is provided between each of the attachment parts and the load support for maintaining the load support in an upright position with respect to the frame.