JP2002337694A - Carrying truck - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a carrying truck capable of securely holding a container without breaking away, and efficiently conducting carrying work, at the time of carrying a container storing freight. SOLUTION: This carrying truck is provided with a caster on a bottom portion of a deck on which a container storing freight is placed. The deck 6 is composed of a placing portion 1 having a space R in a center, a plate spring 3 suspended in the space R while being fixed at the placing portion 1 at both ends and giving energizing force in a vertical direction, and a sucker 4 fixed on the plate spring 3 and provided with an suction surface 15. The plate spring 3 can be shifted between a waiting position A upwardly bending in the space R of the placing portion 1 and energizing in an upward direction of the placing portion 1, and a holding position B downwardly bending in the space R of the placing portion 1 and energizing in a downward direction of the placing portion 1. At the holding position B, the container 5 is stably held on an upper surface of the placing portion 1 by the suction force of the sucker 4 and the downward energizing force of the plate spring 3.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transport trolley for transporting a container mainly containing a load.

[0002]

2. Description of the Related Art When transporting a container or the like containing luggage, a transport trolley having a plurality of casters at the bottom of a flat plate-like deck for loading the container is generally used. In the trolley, a container is placed on a deck, and furthermore, a user moves to a target location by pushing a handle erected at the rear of the deck.

[0003]

However, the above-mentioned transport trolley does not have any special means for preventing the load placed on the deck from slipping off. If the transport vehicle unexpectedly collides with an obstacle or the like and a strong impact is applied, the luggage will jump out of the transport vehicle due to the reaction at the time of the collision, causing damage to the load and inefficient transport operation. There was a point.

[0004] It is an object of the present invention to provide a transport trolley that can securely hold a container containing a load without detaching the container and efficiently perform a transport operation.

[0005]

SUMMARY OF THE INVENTION The present invention is directed to a carrier having a caster at the bottom of a deck for placing a container for storing luggage, the deck comprising a placing portion having a space in the center thereof, The plate spring has both ends fixed to the mounting portion and is erected in a space and exerts a biasing force in a vertical direction, and a suction cup fixed to the plate spring and having an upward suction surface. A standby position that curves upward in the space of the mounting portion and urges upwardly of the mounting portion; and a curved position that curves downward in the space of the mounting portion and urges downwardly of the mounting portion. And the holding position in which the container is stably held on the upper surface of the mounting portion by the suction force of the suction cup and the downward urging force of the leaf spring. Feature

Here, each direction in the claims is determined on the basis of the case where the present carrier is installed on the floor. Furthermore, the suction cup used in the present invention is not particularly limited in its shape, but is set so that the suction force of the suction cup is stronger than the downward urging force of the leaf spring, and furthermore, the user has Any device capable of releasing the suction state between the suction cup and the container by performing a simple operation may be used. Further, the container may be any material as long as it is formed of a material to which the suction cup can be adsorbed on the bottom surface, that is, metal or resin. Further, as for the fixed state between the suction cup and the leaf spring, it is sufficient that the suction cup and the leaf spring are more strongly coupled than the suction force between the container and the suction cup. Further, regarding the curved state of the leaf spring, when the leaf spring is curved downward by the weight of the container,
The container may be set so as to be pulled down until the bottom surface of the container comes into contact with the upper surface side of the deck.

[0007] With this configuration, the leaf spring is lifted to be bent upward to set the container at the standby position, and when the container is placed on the mounting portion, the container is pushed in with weight from above. Then, the suction cup is attracted to the bottom side of the container, and is bent downward while deforming against the bias of the leaf spring, and shifts to the holding position of the container. And the lower part of the mounting part is pulled down by the bias of the leaf spring, and is stably held firmly on the upper surface of the mounting part.

[0008]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, an embodiment of a transport vehicle according to the present invention will be described in detail with reference to the drawings. As shown in FIG. 1 and FIG.
And a flat circular ring-shaped mounting portion 1 provided at the center thereof, and running casters 2 and 2 provided at four locations spaced apart along the outer peripheral edge of the mounting portion 1 on the bottom side. ,
2, 2 and an upwardly-curved leaf spring 3 erected across the space R of the mounting portion 1, and the upper surface of the leaf spring 3 with the suction surface 15 facing upward via the fixing members 7 and 13. And a suction cup 4 attached thereto. As the container 5 of the present embodiment, a stainless steel container box 5 for accommodating a large furnace is used.

The leaf spring 3 is formed by bending a flat thin rectangular metal plate and bending it gently. Both ends of the leaf spring 3 in the longitudinal direction are placed on the mounting portion 1 respectively. By applying each edge of the leaf spring 3 to the placing portion 1 with the rivet 16 on the bottom surface side, the leaf spring 3 is firmly installed in the placing portion 1 while straddling the space R. You. For fixing the leaf spring 3 and the suction cup 4, a long hole 12 penetrating vertically is provided at the center position of the leaf spring 3, and the long hole 12 penetrates in the lateral direction provided at the lower part of the suction cup 4. An attachment ring 7 having a hole is inserted from above, and a holding member comprising two plate members and a spring in a state where the leaf spring 3 is inserted into a through hole of the attachment ring 7 inserted into the elongated hole 12. By inserting 13, suction cup 4 is fixed to leaf spring 3.

Next, referring to FIGS. 3 and 4, a description will be given of a procedure for actually transporting the container box 5 with the container box 5 mounted on the above-structured transport vehicle.

First, as shown in FIG.
Is lifted to set the standby position A of the container box 5 where the leaf spring 3 is bent into a gentle mountain shape, and the suction cup 4 attached to the leaf spring 3 via the fixing members 7 and 13 is attached. Install in the upper position. Next, the user places the container box 5 on the mounting portion 1 centering on the position where the suction cup 4 is located, and further presses down the suction cup 4 as it is using the weight of the container box 5. Then, the bottom surface side of the container box 5 and the suction surface 1 of the suction cup 4
4, the leaf spring 3 pushed down together with the suction cup 4 is deformed in a wave-like state by the weight of the container box 5, whereby the leaf spring 3 moves downward. The metal protruding piece is curved in a gentle U-shape (holding position B), and the cushion plate 11 at the bottom of the container box 5 is provided in a ring shape along the outer peripheral edge on the upper surface side of the mounting portion 1. 9, the container box 5 is firmly held by being pulled downward by the suction force of the suction cup 4 and the urging force of the leaf spring 3.

When the container box 5 is to be removed from the deck 6, as shown in FIG. 5, a user moves a projection 10 provided on the outer peripheral surface side of the suction cup 4 with a finger, so that the user moves his / her finger. Air enters the suction surface 15 from the outside of the suction cup 4 and the suction state between the bottom of the container box 5 and the suction surface 4 of the suction cup 4 is released, so that the container box 5 can be easily removed.

Here, in the case where the carrier of the present invention is used repeatedly, when the leaf spring 3 is returned from the holding position B to the standby position A, a position slightly laterally moved from the center of the leaf spring 3. In this case, when the user presses the back side of the leaf spring 3 with a finger, the leaf spring 3 is easily deformed, so that the use state of the carrier of the present invention is further improved.

[0014]

According to the present invention, the container is firmly held on the deck by the suction force of the suction cup and the bias of the leaf spring, so that the container can be transported safely and efficiently.

[Brief description of the drawings]

FIG. 1 is a plan view of a carriage according to the present invention.

FIG. 2 is a vertical sectional view taken along line XX of FIG.

FIG. 3 is a vertical cross-sectional view showing a use state of the transport trolley of the present invention in a standby position of a container.

FIG. 4 is a longitudinal sectional view showing a use state of the transport vehicle of the present invention in a container holding position.

FIG. 5 is a longitudinal sectional view showing a use state when removing a load from the carrier of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Placement part 3 Leaf spring 4 Suction cup 5 Container box (container) 6 Deck 15 Suction surface A Standby position B Holding position R Space

Claims (1)

[Claims] 1. A transport trolley having a caster at the bottom of a deck on which a container containing luggage is placed, wherein the deck (6) has a placing part (1) having a space (R) in the center; A leaf spring (3) having both ends fixed to the mounting portion (1) and installed in the space (R) and exerting an urging force in a vertical direction, and an upwardly adsorbing surface ( And a leaf spring (3) comprising: a suction cup (4) having a mounting portion (1), wherein the leaf spring (3) is curved upward in the space (R) of the mounting portion (1) and directed upward from the mounting portion (1). And the mounting portion (1) which is curved downward in the space (R) of the mounting portion (1) and the mounting portion (1).
And a holding position (B) for urging downward. In the holding position (B), the suction force of the suction cup (4) and the downward attachment of the leaf spring (3) are set. A transport trolley, wherein the container (5) is stably held on the upper surface of the mounting portion (1) by force.