JPS5851660Y2 - Instant unloading trolley - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to a trolley that facilitates unloading operations.

BACKGROUND ART Dollys are useful for transporting workpieces and the like in factories and are widely used.

However, with conventional trolleys, the unloading process takes time, and this process can cause back pain.

That is, in the past, after the cargo was transported to a predetermined location by pushing or pulling the trolley, the worker had to move to the side of the cargo and unload it.

Moreover, unloading work, which requires lowering the upper body position and sitting on the lower back, puts a strain on the lower back.

Furthermore, in some cases, it may be necessary to engage other pawls in order to prevent the cart from moving.

The present invention was made with the purpose of eliminating such problems in the conventional example and providing an instant unloading trolley that allows the worker to unload the load while remaining in the S position after transporting the load. To briefly describe the gist, a loading platform is formed by a pair of rotating members whose outer parts are pivotally connected, and this is rotated by an operating lever connected via a link mechanism. It's what I did.

Here, the link mechanism maintains each rotating member in a horizontal state when the operating lever is in the raised position (locked position), but maintains it in a substantially hanging state when it is in the lowered position (unlocked position).

Hereinafter, embodiments of the present invention will be described in detail based on the drawings.

The instant loading truck 50 shown in FIGS. 1 to 5 is roughly divided into a loading platform 20 and an operating section 40. As shown in FIGS.

The loading platform 20 includes a pair of cross members (horizontal parts) 1 parallel to each other, a cargo support plate 2, a pair of rotating plates (rotating members) 3, and the like.

The support plate 2 has both left and right edges fixed to the cross member 1, and
Grooves 4 are provided at symmetrical positions near both side edges, and a plurality of rollers 5 are pivotally mounted to the grooves 4 so as to be partially exposed from the upper surface of the support plate 2.

The cross member 1 is provided with circular tube portions 6 and I, while the rotating plate 3 is provided with a pair of circular tube portions 8 on its outer edge, and a pivot 9 is inserted through these circular tube portions 6, 7, and 8. As a result, the rotating plate 3 is rotatably attached to the cross member 1.

The rotating plate 3 also has a groove 11 on its inner edge that is continuous with the groove 4 of the load support plate 2, and a plurality of rollers 12 are partially exposed from the upper surface of the rotating plate 3 in the groove 11. It is pivoted in such a way that it

A guide plate 13 is erected on the upper surface of the horizontal member 1,
A pair of wheel support members 14 are fixed to the side surfaces at regular intervals, and wheels 15 are pivotally connected to these to support the cargo platform 20.

Next, the operation section 40 will be explained based on FIGS. 1 to 4.

An operation frame (upright part) 22, which has a shape in which opposing parts of U-shaped members are connected by a connecting part 21, is attached to each of the horizontal members 1 and the support plate 2 in a substantially upright state. The frame 22 constitutes a truck main body 29.

A plate-shaped locking member 23 is fixed to the connecting portion 21, and an operating lever 25 is inserted through this so as to be movable up and down.

The locking member 23 has a hook-shaped through hole 24 as shown in FIG.
is provided, and a recess 29 is formed adjacent to the through hole 24.

On the other hand, a stopper 26 is attached to the operating lever 25.

The stopper 26 consists of a leg part 27 fixed to the operating lever 25 and a head part 28 formed at one end of the leg part 27.
When pushed forward (upward in FIG. 4), the head 28 can pass through the through hole 24, but when pulled backward, the head 28 is received in the recess 29 of the locking member 23 and held in the locked position. It has become.

The operating lever 25 is operatively connected to each rotating plate 3 by a link mechanism 30.

In other words, the operating lever 25 is a universal joint) 31
The link 320 is connected to a straight first link 32 via a straight first link 32, and both ends of this link 320 are rotatably connected to second and third links 33 and 34, respectively.

The second link 33 has a substantially L-shape, and its bent portion is pivotally connected to the horizontal shaft 1.

At the end opposite to the one connected to the first link 32, a crank-shaped rear tip is fixed to the lower surface of the rotating plate 3 and extends rearward under the support plate 2. A cross member 36 is connected.

On the other hand, the third link 34 has a shape in which another arm is connected to one end of the L-shaped member at an angle close to a right angle and is integrated, and the bent part that is the joining part of this another member is connected to the cross member 1. It is pivoted to.

In other respects, the situation is similar to that of the second link member 33 described above, and one end is connected to the first link 32 and the other end is connected to the cross member 36.

Next, how to use this trolley will be explained.

Initially, the operating lever 25 is slightly raised and pulled forward (to the right in FIG. 1) to set the stopper 26 to the locking position where it is engaged with the locking member 23.

At this time, the rotating plate 3 is in a horizontal state due to the action of the link mechanism 30 (see FIG. 3).

In this state, a plurality of cases 45 containing workpieces and the like are stacked on the support plate 2 and both rotating plates 3, and the cart 50 is moved using the operation frame 22 to transport the cases 45.

When you arrive at the predetermined location, pull up the operating lever 25 slightly and push it forward.

Then, the engagement between the stopper 26 and the locking member 23 is released, and the operating lever 25 is lowered to the unlocked position.

At the same time, the first link 32 is lowered, and the second link 3'3 is moved clockwise to the third link 3, as shown in FIG.
4 is rotated counterclockwise.

As a result, each rotary plate 3 is rotated so that its inner edge side opens downward and is in a substantially hanging state, and the support of the case 45 by the rollers 12 is released, so that the case 45 is moved between the two rotary plates 3 by its own weight. to fall.

Once the front case 45 has been dropped, the cart 50 is pulled rearward and the operating lever 25 is lifted again to the lock position to bring the rotating plate 3 into a horizontal state.

Next, move the cart 50 to another predetermined position, move the rear case 45 above the support plate 2 to the front side (above the rotating plate 3), and then release the operating lever 25 again. The case 45 is lowered to the lock position, the rotating plate 3 is rotated, and the case 45 is dropped.

As described above, according to this example, the operator moves the cart 50 to a predetermined location and transports the case 45, and then simply operates the operating lever 25 to lower the case 45 to the location.

Therefore, there is no need to move to the side or front of the loading platform 20 to unload the cargo, and there is no need to take an unreasonable posture to reach the case 45, so there is no need to worry about causing back pain to the operator.

Since the operating lever 25 can be operated with one hand, if the operating frame 22 is held with the other hand, the cart 50 will not move during unloading.

It should be noted that the above-mentioned embodiment is merely one embodiment of the present invention, and the present invention should not be interpreted as being limited thereto.

That is, the loading platform 20 of the truck does not have to be separated from the support plate 2 and both rotating plates 3, but may be separated from only the rotating plates.

In this case, of course, the case 45 is placed only on both rotating plates 3.
etc. will be loaded.

Furthermore, it is not essential (particularly in the above-mentioned case) that the rotating plate 3 is provided with the rollers 18 on the inner edge side.

The device for setting the operating lever 25 to the lock position and the unlocking position and the link mechanism 30 that operatively connects the operating lever 25 and both rotating plates 3 can also be modified and improved as appropriate.

As described in detail above, in the instant unloading cart according to the present invention, at least a part of the loading platform includes a pair of rotating members pivotally connected at the outer edge, and furthermore, the rotating member is attached to the operating frame. Since the unloading operation can be controlled by an operating lever, the unloading operation becomes easier, and there are advantages such as eliminating lower back pain during this operation.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing one embodiment of the present invention, and Fig. 2 is a perspective view showing an embodiment of the present invention.
An enlarged view of the main parts in the figure, FIG. 3 is a rear view of the above embodiment,
FIG. 4 is a plan view of the locking member in the above embodiment, and FIG.
The figure is an explanatory diagram of the operation of the above embodiment. DESCRIPTION OF SYMBOLS 1... Horizontal member (horizontal part), 2... Support plate, 3... Rotating plate (rotating member), 5, 12... Roller, 15...
Wheels, 20... Loading platform, 22... Operation frame (upright part),
23... Lock member, 25... Operation lever 30.
...Link mechanism, 40...Operation unit, 50...Dolly.

Claims (1)

[Claims for Utility Model Registration] A trolley body including a pair of horizontal parts parallel to each other and an upright part connected thereto, and when the outer part of the trolley body is pivotally attached to each horizontal part of the trolley body and held in a horizontal state. a pair of rotating members that support a load; a control lever that is held movably up and down on an upright portion of the truck body and that can assume a raised locked position and a lowered unlocked position; each of the rotating members and the operation lever; It is characterized by including a link mechanism that operatively connects the levers and maintains each rotating member in a horizontal state when the operating lever is in the locked position and in a substantially hanging state when the operating lever is in the unlocked position. An instant unloading cart.