JPH0218261B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a cargo transporting trolley that can be driven by hand with a load placed on the trolley main body, that is, a trolley main body forming a load loading surface, and a vehicle that stands up from the front end of the trolley main body. The front frame is set up, the rear frame is set up from the rear end,
This invention relates to a cart for transporting loads, which is comprised of side frames removably disposed at both ends.

As a conventional cargo conveyance truck having the above-mentioned structure, a structure as seen in, for example, Japanese Utility Model Application Publication No. 55-62466 is provided. In this conventional type, handle-forming rods are erected at the front and rear of the loading platform, and net-like front and rear frames are attached to these handle-forming rods. The pair of left and right side frames includes a net-like lower side frame component that can be attached to and detached from the ends of the front and rear frames via assembly rods, and a lower end attached to the upper end of this lower side frame component via a wire. They are constructed of net-like upper side frame members that are rotatable with respect to each other by being connected and that are detachable from the ends of the front and rear frames via assembly rods.

According to the above-mentioned conventional type, since the side frames are all mesh-like, they are weak when used in the installed state, and it is therefore impossible to load a load that would apply a large internal pressure to the side frames. Particularly large internal pressure was applied to the lower part, causing deformation and damage to the lower side frame components.

SUMMARY OF THE INVENTION An object of the present invention is to provide a cart for transporting cargo that can be easily loaded and unloaded, and yet has removable side frames that can be firmly attached.

In order to achieve the above object, the cargo transport trolley according to the present invention has a side frame whose lower end is removable from the main body of the trolley via a connector, and whose front and rear ends are removable from the front frame and rear frame via the connector. a lower plate body, an intermediate mesh body attached to the upper end of the lower plate body so as to be swingable up and down via a connecting member, and an intermediate mesh body attached to the upper end of the intermediate mesh body so as to be swingable up and down through the connecting member. Both nets are configured to be removable from the front frame and the rear frame via locking devices.

According to the present invention having such a structure, the lower plate attached via the connector can be firmly integrated with the bogie body, the front frame, and the rear frame, and since it is a plate, it is resistant to internal pressure deformation. Become. Therefore, when both nets are attached to the front frame and the rear frame by the locking devices, the side frames become strong. This makes it possible to load loads that apply large internal pressure to the side frames. In addition, by opening the upper screen in one step or opening the middle screen in two steps, it is possible to easily load and unload cargo, and by removing the side frame, it is possible to load and unload large or long loads. loading and unloading,
Also, it can be easily transported.

An embodiment of the present invention will be described below based on the drawings.

Basically, as shown in FIGS. 1 to 3, a load carrier includes a truck body 1 that forms a loading surface on its upper surface, and a pair of left and right wheels arranged on the lower front surface of the truck body 1. A caster wheel 2, a pair of left and right fixing wheels 3 disposed on the lower rear surface, a front frame 4 erected from the front end of the truck body 1, and a rear frame 5 erected from the rear end.
It consists of side frames 6 which are removably disposed at both ends, and gripping rods 7 and 8 for manual pushing provided on the front frame 4 and the rear frame 5. The side frame 6 includes a lower plate body 9 formed by attaching a flat plate to a frame body, an intermediate mesh body 10 in which a plurality of rods are arranged in parallel in the vertical and horizontal directions and integrated, and an upper mesh body. It consists of 11. The lower end of the lower plate 9 is removably attached to the side end of the truck body 1 via a connector (bolt) 12, and the front and rear ends are connected to brackets connected to both lower ends of the front frame 4 and the rear frame 5. 13 via a connector 14 in a removable manner. Also, the intermediate mesh body 10
is connected to the connecting member 15 whose lower end is connected to the upper end of the lower plate body 9.
It is attached via a holder and is configured to be able to swing up and down. Further, the lower end of the upper mesh body 11 is attached to the upper end of the intermediate mesh body 10 via a connecting member 16, so that the upper mesh body 11 is configured to be able to swing vertically. Here, the heights H ₁ and H ₂ of both the mesh bodies 11 and 10 are equal or approximately equal, and the heights of the connecting member 15 from the floor surface 17 are
The height H ₃ is set to be equal to or slightly higher, that is, [[H ₁ ≒H ₂ ≦H ₃ ]. Both the mesh bodies 10 and 11 are configured to be able to be engaged with and detached from the front frame 4 and the rear frame 5 via locking devices 18 and 19. That is, the locking device 18 is composed of a locking device 20 attached to both sides of the middle portion of the front frame 4 and the rear frame 5, a locking pin 21 provided at the upper end of the middle portion net body 10, and the like. The device 19 includes a locking member 22 attached to both upper sides of the front frame 4 and rear frame 5, a locking pin 23 provided at the upper end of the upper mesh body 11, and the like.

In Fig. 1 to Fig. 3 and Fig. 6 to Fig. 10,
A rotary shaft 41 is disposed at a position near one side of the truck body 1 in the front-rear direction. A disk-shaped rotating body 43 is disposed between adjacent fixing wheels 3 and at the center in the width direction of the vehicle body via a vertical shaft 42, and this rotating body 43 is rotatable around a vertical axis 44. . One end of a connecting rod 46 is connected to a link 45 attached to the rotating shaft 41 via a pin 47, and the other end of the connecting rod 46 is connected to the rotating body 43.
It is connected via a vertical pin 48 at an eccentric position.
Therefore, by rotating the rotary shaft 41 in the forward and reverse directions, the rotating body 43 can be rotated in the forward and reverse directions around the vertical axis 44. In addition, a turnbuckle mechanism 4 is provided in the connecting rod 46.
9 is interposed. Brake devices 50A and 50B are provided opposite to both fixing wheels 3, respectively. These brake devices 50A and 50B are operated by L-shaped operating rods 52A and 52B that are swingably attached to the truck body 1 side via longitudinal pins 51A and 51B.
and brake shoes 54A, 54B which are attached to the outer ends of the operating rods 52A, 52B and can come into contact with and separate from the braking surface 53 of the fixing wheel 3. At the inner ends of the operating rods 52A, 52B, one ends of the rods 55A, 55B are connected to pins 56A, 56B.
The other ends of the rods 55A and 55B are connected via pins 57A and 55B at eccentric positions of the rotating body 43, respectively.
57B. At that time, pin 5
The connection positions of 7A and 57B are displaced by 180 degrees with respect to the vertical axis 44. Also rod 55A, 5
The other end of 5B is curved to form a toggle mechanism. A foot-operated brake operating section (pedal type) 58 is attached to the front end of the rotating shaft 41, and an operating lever 60 that is linked to a manual brake operating section (lever type) 59 provided on the gripping rod 7 is attached. It will be done. A foot-operated brake operating section 61 and an operating lever 63 interlocked with a manual brake operating section 62 provided on the gripping rod 8 are attached to the rear end of the rotating shaft 41. Tension springs 64 and 65 are provided between both operating levers 63 and the truck body 1, respectively. In addition, Rod 55A,
Spring connectors 66A and 66B are interposed in 55B.

Such a load carrier can be manually moved in the free direction by pushing or pulling it via the gripping rods 7, 8. During such driving, the brake shoes 54A, 54B are spaced apart from the braking surface 53, and the tension springs 64, 65 are further away from the braking surface 53.
maintained by the elastic force of When applying the brakes when the vehicle is stopped after manual running, one of the operating units 58, 59, 61, and 62 is operated. Then, the rotating shaft 41 is rotated against the tension springs 64 and 65, and the connecting rod 46 is pulled. As a result, the rotating body 43 is aligned with the vertical axis 44
, and draws both rods 55A and 55B toward the rotating body 43. Then, the operating rod 52A,
52B swings and brake shoes 54A, 54B
is brought into pressure contact with the braking surface 53, thereby applying the brake. In this braking state, rod 55A,
Tension springs 64, 6 by the toggle mechanism of 55B
It is maintained by the elastic force of 5. Note that the brake can be released by operating the foot-operated brake operating sections 58 and 61 in the opposite direction.

In the load conveying state, the side frame 6 has its lower plate 9
is fixed to the truck body 1 and the front frame 4 and rear frame 5 via connectors 12 and 14, and the intermediate mesh body 10 is integrated with the front frame 4 and rear frame 5 by a locking device 18. At the same time, the upper mesh body 11 is integrated with the front frame 4 and the rear frame 5 by a locking device 19. Therefore, it is possible to form a side frame 6 that is firmly attached, and it is possible to load and transport a load in which a large internal pressure is applied to the side frame 6. Further, by removing the locking device 19 and moving only the upper mesh body 11 downward as shown by the imaginary line A in FIG. 4, the side frame 6 can be opened one step, and the locking device 18 is further removed As shown by the imaginary line B in Fig. 4, the upper mesh body 1
By lowering the intermediate net 10 together with 1, the side frame 6 can be opened in two stages, and therefore loading and unloading of cargo can be easily communicated according to the height of the cargo. At this time, the two-stage opening movement can be performed without both the nets 10 and 11 coming into contact with the floor surface 17, and with the side portions being opened wide due to the height dimension [H ₁ ≒H ₂ ≦H ₃ ] mentioned above. .
The side frame 6 can be removed by detaching the connectors 12 and 14 and removing the lower plate 9, and the open side surface can be used to load and unload large or long loads. It can also be used for transportation.

According to the present invention having the above configuration, the following effects can be expected. That is, the lower plate attached via the connector can be firmly integrated with the bogie body, front frame, and rear frame, and since it is a plate, it can be made strong against internal pressure deformation. When both mesh bodies are attached to the front frame and the rear frame by the locking devices, a strong side frame can be formed. As a result, it is possible to load a load in which a large internal pressure is applied to the side frame, and the shape of the lower plate, which is particularly subjected to a large internal pressure, can be maintained without deforming or damaging the lower plate. In addition, the upper mesh can be opened in one step,
Alternatively, loading and unloading of cargo can be easily carried out by opening the intermediate mesh in two stages, and furthermore, by removing the side frame, loading and unloading of large or long cargo can be carried out. It can be easily transported.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which Fig. 1 is a front view, Fig. 2 is a side view, Fig. 3 is a rear view, Fig. 4 is a front view of the side frame, and Fig. 5 is a side view of the side frame. 6 is a bottom view of the main part, FIG. 7 is a rear view of the main part, FIG. 8 is an exploded perspective view of the main part, FIG. 9 is a schematic plan view, and FIG. 10 is a schematic front view. 1...Body body, 4...Front frame, 5...Rear frame, 6
... Side frame, 9 ... Lower plate body, 10 ... Intermediate mesh body, 11 ... Upper mesh body, 12 ... Connector, 13 ...
... Bracket, 14... Connector, 15, 16...
Connecting member, 17...floor surface, 18, 19...locking device.

Claims (1)

[Claims] 1 A cargo transport system consisting of a trolley body forming a loading surface, a front frame erected from the front end of the trolley body, a rear frame erected from the rear end, and side frames removably disposed at both ends. In the trolley, the side frame is attached to and detached from the trolley body at its lower end via a connector, and whose front and rear ends are detachable from the front frame and the rear frame via the connector; It is composed of an intermediate mesh body attached to the upper end of the intermediate mesh body so as to be swingable up and down via a connecting member, and an upper mesh body that is attached to the upper end of the middle mesh body so as to be swingable up and down via a connecting member. 1. A cart for transporting cargo, characterized in that the body is configured to be removable from the front frame and the rear frame via a locking device.