JPH0569829A - Carriage device for cargo handling - Google Patents

Abstract

PURPOSE:To selectively use a stay rod and a gate in a single carriage for cargo handling so as to reduce equipment cost by combining a carriage provided with a floor plate, both right and left side frames, a back frame and a stay rod fitted between end parts of both the side frames, with a detachable gate for closing between the end parts of both the side frames. CONSTITUTION:A carriage device for cargo handling is constituted of combination of a carriage 5 provided with a floor plate 1, both right and left side frames 3a, 3b, a back frame 4 and a stay rod 6 fitted between end parts of both the side frames 3a, 3b, and a detachable gate 8 for closing between the end parts of both the side frames 3a, 3b. When the stay rod 6 is used, one end of the stay rod 6, the other end of which is vertically swingably supported by either of retaining members 9, 10, is engaged. When the gate 8 is used in place of the stay rod 6, the other end of the stay rod 6 is released from one of the retaining members 9, 10 and is tilted down toward a side of a forward end longitudinal frame on which one of the retaining members 9, 10 is supported to turn the other of the retaining members 9, 10.

Description

Detailed Description of the Invention

The present invention relates to a truck having a bottom plate, left and right side frames, a back frame, and a stay rod mounted between front end portions of the both side frames, and a detachable gate for closing the front end portions of the both side frames. The present invention relates to a cargo handling trolley device formed by a combination with.

[0002]

2. Description of the Related Art As shown in FIG. 1, a bottom plate 1 is provided with free wheels 2 below four corners, and both left and right side frames 3a and 3b and a back frame 4 are provided.
There is known a framed cargo trolley 5 including a. This dolly 5 has, for example, a side frame 3a and a back frame 4 fixedly connected to each other at a right angle, and the bottom plate 1 is pivotably attached to the lower end of the back frame 4 so that the bottom plate 1 can be stacked inside the back frame 4. And side frame 3b
Is foldably pivotably attached to the side of the back frame 4 so that it can be further stacked on the inner side of the bottom plate 1 stacked on the inner side of the back frame 4, and the four swivel wheels 2 respectively correspond to the corresponding side frames 3a, 3b
Also, it is arranged at the lower end of the back frame 4.

In this type of cargo handling trolley 5, a stay rod may be necessary in order to maintain the space between the front ends of the left and right side frames 3a and 3b and prevent the collapse of the cargo. Therefore, for example, the stay rod 6 as shown in FIG.
Although it will be mounted between the front end portions of b, in the conventional cargo handling cart 5 having such a stay rod 6, the left and right side frames 3
A pair of holders on both sides are fixed to the upper portions of the front end vertical frame members 7a and 7b forming a and 3b, and one end of the stay rod 6 is vertically swingably attached to one holder and the other holder is attached to the other holder. The other end of the stay rod 6 is disengageably engaged, and one end of the stay rod 6 is disengaged from the other holding device when loading or unloading a load or when the carriage 5 is folded. It is arranged to extend along the inner side surface of the fixed front end vertical frame member 7a.

Further, in this type of cargo handling cart 5, since the load may drop depending on the type of the load on the stay rod 6 as described above, the left and right side frames 3a, 3b.
A gate may be required to close between the front ends of the.
In such a case, for example, a gate 8 as shown on the right side of FIG. 1 is detachably mounted between the front end portions of the left and right side frames 3a and 3b of the cargo handling carriage 6, but as described above. In the bogie 6 to which 6 is already attached, the stay rod supporting portions (protruding portions) of the both holders are provided on the inner surfaces of the front end vertical frame members 7a and 7b of the left and right side frames 3a and 3b of the bogie 6, respectively.
Are opposed to each other, so that the gate 8 is attached to the left and right side frames 3a,
It cannot be mounted between the front ends of 3b. Therefore, in the conventional loading and trolley with a gate, the left and right side frames 3a and 3b of the trolley without the stay rod 6 are attached.
Was installed between the front ends of the. That is, conventionally, the cargo handling cart with the gate and the cargo handling cart with the stay rod are separate from each other.

[0005]

In the prior art, when a stay truck and a gate are separately used as needed when using a cargo truck, as described above, a dedicated carriage with a stay rod and a gate are provided respectively. Two types, namely a trolley, have to be prepared, which results in a high facility cost, is uneconomical, and requires an extra storage space.

According to the present invention, the stay rod and the gate can be selectively used with one cargo truck, thereby reducing the facility cost and not requiring an extra storage space, which is extremely useful. An object of the present invention is to provide a cart device for cargo handling.

[0007]

A cargo handling trolley device of the present invention that can achieve the above object is a bottom plate, left and right side frames, a back frame,
And a carriage provided with a stay rod mounted between the front end portions of the both side frames and a detachable gate for closing the front end portions of the both side frames, one end of the stay rod being one side frame. Is vertically swingably supported by a short tubular holding member that is rotatably fitted and supported by the front end vertical frame member, and the other end of the stay rod is rotated by the front end vertical frame member of the other side frame. In order to engage with a short tubular holding member that is fitted and supported as much as possible so as to be vertically engageable and disengageable, and to form an appropriate gap between each of the short tubular holding members on the left and right sides of the gate. It is characterized in that a relief portion is provided.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A preferred embodiment of the present invention will now be described with reference to the drawings. As shown in FIGS. 1 to 4, a cargo handling trolley device according to the present invention comprises a bottom plate 1, left and right side frames 3a and 3b, and a back. Frame 4,
And a carriage 5 having a stay rod 6 mounted between the front ends of the side frames 3a and 3b, and a removable gate 8 for closing the front ends of the side frames 3a and 3b. Front end vertical frame member 7 of the left side frame 3a that constitutes the carriage 5
A short tubular first holding member 9 is rotatably fitted and held on the upper part of a, and a short tubular second holding member 10 is also provided on the front end vertical frame member 7b of the right side frame 3b. Similarly, the first holding member 9 is rotatably fitted and held, and one end 6 of the stay rod 6 is attached to the first holding member 9.
a is supported by a substantially C-shaped support piece 11 so as to be vertically swingable, and the other end 6b of the stay rod 6 is vertically engaged with and disengaged from an engagement hole 12 of the second holding member 10 in the second holding member 10. It is freely engaged. The other end 6b of the stay rod 6 forms an L-shaped locking portion.

The first holding member 9 and the second holding member 10
2 will be described in detail with reference to FIGS. 2 and 3, the first holding member 9 is rotatable and vertically slidable with respect to the front end vertical frame member 7a. The portion has a dividing portion 13 extending in the vertical direction.
A pair of upper and lower connecting projecting pieces 14a, 14b extending outward are integrally projectingly provided on the upper end portion and the lower part thereof, and the C-shaped support piece 11 is riveted to the connecting projecting pieces 14a, 14b. The one end 6a of the stay rod 6 is inserted through and supported by the C-shaped support portion piece 11 through a through hole 15 so as to be vertically swingable. Further, at the lower edge of the first holding member 9, the dividing portion 13 located below the C-shaped supporting portion piece 11.
Is formed with a locking recess 15a at its lower end, and locking recesses 15b, 15c, 15d are cut out at positions displaced from the locking recess 15a by 90 degrees, respectively.
These locking recesses 15a to 15d are locking pins provided at predetermined positions on the rear side surface of the front end vertical frame member 7a by rotating the holding member 9 by 90 degrees around the front end vertical frame member 7a. 16 (see FIG. 3) can be engaged.

The second holding member 10 has a U-shaped flange piece 17 and a rivet (or screw) 18 connected to the flange piece 17 so that a vertical frame member fitting hole 19 is formed between the flange piece and the flange piece. And a cylindrical receiving portion piece 20 in which the front end vertical frame member 7b of the right side frame 3b is rotatable and vertically slidable through the vertical frame member fitting hole 19. Mated. The receiving hole 20 is formed in the receiving portion 20, and the other end locking portion 6b of the stay rod 6 is engaged with the engaging hole 12 so as to be vertically disengageable. Further, as shown in FIGS. 2 and 3, at the lower edge of the vertical frame member fitting hole 19, the locking recess 2 is provided on the side of the receiving piece 20 facing the engaging hole 12.
1a is notched, and locking recesses 21b, 21c, 21d are provided at positions displaced 90 degrees from the locking recess 21a.
Are respectively cut out, and these locking recesses 21a to
21d is engageable with the locking pin 22 provided at a predetermined position on the rear side of the front end vertical frame member 7b by rotating the second holding member 10 by 90 degrees around the front end vertical frame member 7b. Becomes

As described above, the first and second holding members 9 and 10 are provided with four locking recesses (15a to 15d, 21a to 21d) at 90-degree circumferential intervals, respectively. Contrary to the mounting mode shown in the illustration of this embodiment, the first holding member 9 may be mounted on the right front end vertical frame member 7b and the second holding member 10 may be mounted on the left front end vertical frame member 7a. it can.

In a use state in which the stay rod 6 is stretched between the front end vertical frame members 7a and 7b of the left and right side frames 3a and 3b as shown by the solid lines in FIGS. The locking recess 15d engages with the locking pin 16 of the front end vertical frame member 7a, and the locking recess 21d of the second holding member 10 engages with the locking pin 22 of the front end vertical frame member 7b. Both holding members 9 and 10 are held non-rotatably with respect to the front end vertical frame members 7a and 7b. When loading and unloading luggage,
The other end locking portion 6b of the stay rod 6 is temporarily pulled up as shown in phantom lines in FIGS. 1 and 2 to be disengaged from the engaging hole 12 of the second holding member 10, and then downwardly with one end 6a thereof as a center. It swings and is set along the front end vertical frame member 7a. Then, both holding members 9 and 10 are lifted as shown in phantom in FIG. 2, with the locking recesses 15d and 21d separated from the locking pins 16 and 22 of the front end vertical frame members 7a and 7b. , Both holding members 9,
By rotating the 10 by 180 degrees in the direction of the arrow in FIG. 2 and then lowering it, the gate formed by both the front end vertical frame members 7a and 7b has a small number of protrusions. In this lowered state, the retaining recesses 15b and 21b of the holding members 9 and 10 are provided.
Are locked to the locking pins 16 and 22. After the loading and unloading of the luggage is completed, both holding members 9 and 10 are returned to the original state, and the other end locking portion 6b of the stay rod 6 is engaged with the engaging hole 1 of the second holding member 10.
2 may be engaged.

On the other hand, in the gate 8, as shown in FIGS. 1 and 4, at both end projections of a rotating horizontal shaft 24 that penetrates the lower end horizontal frame member 23, front end vertical frames of the left and right side frames 3a and 3b of the carriage 5 are provided. A U-shaped engaging member 25 that can be freely fitted into and disengaged from the members 7a and 7b is fixed symmetrically, and the front end vertical frame member 7a of the left and right side frames 3a and 3b is located near the upper ends of the left and right sides of the gate 8. , 7b is provided with a movable locking member 26 that can be freely engaged and disengaged. Further, the left and right vertical frame members 27a, 27b of the gate 8
Is the front end vertical frame member 7 of the left and right side frames 3a and 3b of the carriage 5.
The portions corresponding to the first holding member 9 and the second holding member 10 provided on a and 7b are bent and deformed in the inward facing direction to form an appropriate gap between the holding members 9 and 10. Relief portions 28 are formed for each.

As shown in FIGS. 4 and 7, the pair of left and right movable engaging members 26 have hook portions 31 formed at the tips of strips 30 supported by slide guides 29a and 29b so as to be slidable in the lateral direction. A fan-shaped lock plate 32 is pivotally supported by a support shaft 33 in an intermediate portion of the strip-shaped plate 30 so as to be vertically swingable, and the fan-shaped lock plate 32 is at the lower limit position shown in FIGS. 1 and 4. In some cases, the fan-shaped end of the fan-shaped lock plate 32 and the front end vertical frame members 7a and 7b interfere with each other to prevent the strip-shaped plate 30 from sliding outward (unlocking direction). By moving
The belt-shaped plate 30 is configured to be slidable outward (in the unlocking direction).

A method of using the gate 8 configured as above will be described. When using the gate 8, the stay rod 6
First, the other end locking portion 6b of the stay rod 6 is disengaged from the engaging hole 12 of the second holding member 10, and the first holding member 9 is temporarily raised to lock the locking pin 16. After the locking of the holding recess 9d is released, the first holding member 9 is rotated by 90 degrees from the position shown by the solid line in FIG. 15a is locked to the locking pin 16, and the stay rod 6 is swung downward around the one end 6a so as to hang down along the rear side surface of the left front end vertical frame member 7a as shown in FIG. Similarly to the first holding member 9, the second holding member 10 is once moved up to release the locking of the locking recess 21d with respect to the locking pin 22, and then the virtual line is drawn in the arrow direction from the position shown by the solid line in FIG. The locking recess 21a of the second holding member 10 is locked to the locking pin 22 by rotating 90 degrees to the illustrated position and descending. By doing so, both side frames 3 of the bogie 5 are
Almost no protrusions are present on the opposite side surfaces of the front end vertical frame members 7a, 7b which are horizontally opposed between the front end portions a, 3b. That is, the stay rod 6 is located on the rear side surface side of the left front end vertical frame member 7a in the carriage 5, and the support piece 11 and the receiving piece 20 of both holding members 9 and 10 are both front end vertical frame members 7a and 7.
It is located on the rear side of b.

After the mounting angle positions of the holding members 9 and 10 with respect to the front end vertical frame members 7a and 7b are changed and fixed as described above, the gate 8 is set on the carriage 5. When the gate 8 is set, the pair of left and right movable locking members 26 of the gate 8 is attached to the fan-shaped lock plate 32.
And the strip plate 30 is slid outward, and the U-shaped engaging members 25 on both sides of the lower end of the gate 8 are attached to the carriage 5
Front end vertical frame members 7a, 7b of the left and right side frames 3a, 3b in
, But the method is as follows.

That is, as shown in FIG. 5, for example, a pair of left and right U-shaped engaging members 25 rotate together with the rotating horizontal shaft 24 in a direction in which they can be fitted to the front end vertical frame members 7a, 7b of the left and right side frames 3a, 3b. In this state, the gate 8 is slightly tilted to the front and left side so that the lower end portion of the gate 8 is located between the left and right side frames 3a and 3b, and the lower horizontal frame member 23 of the gate 8 is returned horizontally. By rotating, a pair of left and right U-shaped engaging members 25
Is fitted from the inside to the lower ends of the front end vertical frame members 7a and 7b of the left and right side frames 3a and 3b. Then, as shown in FIG. 6, the gate 8 tilted toward the front is rotated upward about the horizontal axis of rotation 24 as shown in phantom lines in FIGS. 5 and 6 to return to the vertical posture. 3b front end vertical frame members 7a, 7b
Located in between. At this time, the strip-shaped plates 30 of the pair of left and right movable locking members 26 at the locking release position are the front end vertical frame members 7
Since they are in contact with a and 7b, the strip-shaped plate 30 of each movable locking member 26 is slid inward so that the hook portion 31 is engaged with the front end vertical frame members 7a and 7b, and the fan-shaped lock plate 32 is moved downward. Then, the strip plate 30 is locked at the lock position.

As described above, the gate 8 is connected to the left and right side frames 3a,
When it is arranged between the front end vertical frame members 7a and 7b of 3b,
Both holding members 9 and 10 in a state of being fitted to the front end vertical frame members 7a and 7b of the side frames 3a and 3b and being repositioned as shown by phantom lines in FIG. 3, and both vertical frame members of the gate 8. Since an appropriate gap is formed between each of the vertical frame members 27a of the gate 8 and the escape portion 28 provided in each of the 27a,
Except for the relief portions 28, the two side frames 3a, 3b can be set in a state of being in close contact with the front end vertical frame members 7a, 7b, and can be securely and cleanly attached.

As the gate, for example, as shown in FIG. 8, a gate lower half portion 34 having the same structure as the gate 8 and
A double gate 37, which is pivotally mounted on the lower half portion 34 of the gate so as to be swingable back and forth and includes an upper half portion 36 of the gate having the movable engaging members 26 in the vicinity of the upper ends of the left and right sides. It can also be used. In the case of such a double gate 37, at least the left and right vertical frame members 38a and 38b of the gate upper half portion 36 are configured to have a downwardly constricted slope shape as shown in the drawing, so that the front end vertical portions of the left and right side frames 3a and 3b are longitudinally elongated. Both holding members 9 and 1 attached to the frame members 7a and 7b
It is possible to provide relief portions 39 for forming appropriate gaps with 0.

[0020]

The cargo handling vehicle device of the present invention includes a bottom rod, left and right side frames, a back frame, and a stay rod attached to the front end vertical frame members of the both side frames via a pair of left and right short tubular holding members. And a removable gate that is mounted between the front ends of the both side frames as required, wherein one end serves as one holding member when a stay rod is used. The other end of the stay rod supported so as to be vertically swingable is engaged. When a gate is used instead of the stay rod, the other end of the stay rod is separated from the other holding member, and the one end holding member is tilted toward the front end vertical frame member side supported by the holding rod. , The one holding member is rotated around the front end vertical frame member so that the stay rod fits inside the bogie, and thus the stay rod and the projecting portion of the one holding member (one end support portion of the stay rod) are Retract from the gate mounting side surface of the front end vertical frame material. Similarly, the other holding member is also rotated around the other front end vertical frame member to retract the projecting portion (the other end engaging portion of the stay rod) from the other gate mounting side surface portion.

As described above, when the gate is used, the stay rod and the projecting portions of both holding members are retracted from the gate mounting side surfaces of the front end vertical frame members so that the front end vertical frame members face each other. There are almost no protrusions on the side surface that obstruct the mounting of the gate, and the gate can be mounted between the front end vertical frame members without removing the stay rod. In addition, in this case, the left and right side portions of the gate are provided with the escape portions for forming an appropriate gap between the short tubular holding members on the left and right side portions of the gate.
The gate can be set in a state in which it is in close contact with both front end vertical frame members except for the relief portion, and therefore, the gate can be mounted securely and in good appearance.

Therefore, according to the present invention, the stay rod and the gate can be selectively and effectively used by one trolley, whereby the facility cost can be reduced and an extra storage space is not required. The value of use is extremely high.

[Brief description of drawings]

FIG. 1 is a perspective view showing a cart device for cargo handling according to the present invention.

FIG. 2 is a front view showing a state where a stay rod is attached to a side frame of a truck.

FIG. 3 is a plan view of the above.

FIG. 4 is a perspective view showing a connecting portion between a side frame of the truck and a gate.

FIG. 5 is a front view illustrating a state when the gate is mounted.

FIG. 6 is a side view of the above.

FIG. 7 is a cross-sectional plan view illustrating a movable locking member.

FIG. 8 is a front view showing a modified example of the gate.

[Explanation of symbols] 1 bottom plate 2 universal wheel 3a side frame 3b side frame 4 back frame 5 bogie 6 stay rod 7a front end vertical frame member 7b front end vertical frame member 8 gate 9 holding member 10 holding member 26 movable locking member 28 escape portion 39 Runaway

Claims (1)

[Claims] 1. A truck having a bottom plate, left and right side frames, a back frame, and a stay rod mounted between front end portions of the both side frames,
It is composed of a combination with a removable gate for closing the front end portions of the both side frames, and one end of the stay rod has a short tubular shape that is rotatably fitted and supported by a front end vertical frame member of one side frame. The stay rod is swingably supported up and down, and the other end of the stay rod is vertically engaged and disengaged by a short tubular holding member that is rotatably fitted and supported by a front end vertical frame member of the other side frame. A cargo handling trolley device, characterized in that it is provided with escape portions for engaging with each other and forming appropriate gaps with the respective short tubular holding members on both left and right sides of the gate.