JP2003137415A - Roller conveyors connection body - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce a storage space (area) of roller conveyors on a flat plane. SOLUTION: A main roller conveyor 11 provided with a handle 32 operation type back and forth rocking arm 17 in a rear end of a conveyor frame 12 and a driven roller conveyor 21 provided with a support bar 27 in a front end of a conveyor frame 22 having a rear leg frame 25 with casters 26 and provided with a roller support plate 28 fitted to a lower end of each roller support frame 23 are connected to each other in back and forth direction in the condition that the back and forth rocking arm 17 extended backward supports the support cover 27. On the other hand, a front end of the driven roller conveyor 21 is fed forward, while lifting it, with the forward rocking of the back and forth rocking arm 17, and a front end of the roller support plate 28 is placed on an end 14 of a roller 14 provided in the rear end of the main roller conveyor 11, and thereafter, the driven roller conveyor 21 is pushed forward, and laminated on the main roller conveyor 11 for storage.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roller support frame on the left and right which forms a conveyor frame with casters and extends in the longitudinal direction with a large number of rotatable rollers protruding above the roller support frame. The present invention relates to an improvement of roller conveyors arranged in a row.

[0002]

2. Description of the Related Art As is well known, this type of roller conveyor cannot be stacked and stored vertically because of its instability due to its weight and movability. You need the number of cars.

[0003]

Therefore, the present invention is
An object of the present invention is to provide a structure of a roller conveyor in which the rear half can be stacked on the front half in order to reduce the planar storage space.

[0004]

According to the present invention, the above-mentioned problems are solved by attaching casters to the lower ends of the front and rear ends of the conveyor frame extending in the front and rear and at the rear end and the tip of the conveyor frame. A main roller conveyor equipped with a manually operated front-back swing arm with a hook that can swing from the rearward extended state to the upright state, and casters at the lower end of the rear end of the conveyor frame that extends in the front-rear direction and the conveyor frame. At the front end of the main roller conveyor, the hooked parts of the front and rear swing arms of the conveyor frame of the main roller conveyor are provided with arm supported parts that can be supported from the rearward extending state to the upright state, and on the left and right roller supporting side frames of the conveyor frame. A sub-roller conveyor that is provided (projects) inwardly to a portion directly below each end of the roller, and has a supported roller support portion that can be supported at each end of the roller of the main roller conveyor. It is solved by Ranaru roller conveyor conjugate.

The roller conveyor assembly of the present invention has a hook portion at the front end portion of the conveyor frame of the slave roller conveyor in a state where the front and rear swing arms extend rearward of the main roller conveyor on a predetermined work floor. By supporting the arm supported portion, the sub roller conveyor is used in a state of being connected horizontally behind the main roller conveyor in a state of extending horizontally in the front-rear direction.

When not in use, the front-and-back swing arm is swung forward at a proper place through a manual operation from the rearward extended state to the upright state so that the front end portion of the slave roller conveyor is supported by the arm. And then feed it forward while placing the roller supported parts of both roller support frames at the front end on both ends of the roller at the rear end of the main roller conveyor, and then pushing the slave roller conveyor forward. By doing
While the succeeding part following the leading end is placed on the end of the roller of the main roller conveyor, it is advanced through the feed by the rotation of the roller group and the feed by the caster at the rear end, and finally about its entire length. Place on the rollers of the main roller conveyor and stack them to reduce the occupied space.

Further, when returning from such a non-use state to the above-mentioned use state, the front-rear swing arm is returned to the rearward extended state through a manual operation at an appropriate time, and the secondary roller conveyor is returned. By pulling backward, the parts mounted on both ends of the roller group of the main roller conveyor are sequentially moved backward by the rotation of the roller group while the rear end is retracted through the casters. Then, the rollers are lowered from above, and finally the arm-supported portion at the front end thereof is supported by the hook portion of the front-back swing arm.

The manually operated front-back swing arm in the main roller conveyor of the roller conveyor assembly of the present invention generally has a base portion provided with a handle operation type transmission drive mechanism (transmission drive mechanism such as chain, belt, gear). It can be configured by an arm fixed to a front-rear rotation shaft (swing shaft) driven through.

Further, the roller support frame of the conveyor frame of the slave roller conveyor has a lateral position such that the roller support part falls off from the end of the roller when the main roller conveyor moves forward and backward on the roller via the roller support part. To prevent movement
A lateral movement preventing skirt can be provided on the outer side of the roller supported portion so as to extend downward so as to face the roller supporting frame of the conveyor frame of the main roller conveyor.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of a roller conveyor assembly according to the present invention will be described below with reference to FIGS.

Conveyor frame 12 of main roller conveyor 11
At the front and rear ends of a pair of left and right roller support frames 13 (here, formed by laterally-shaped channel members) that rotatably support the group of rollers 14 with the upper part protruding upward.
The handle-operated front-back swing arm according to the present invention has a basic structure in which a leg frame 15 with 6 is attached, and a rear leg frame 15 and a rear end portion of both roller supporting frames 13 of the conveyor frame 12 are included. At the rear end, a lever-type handle 32 including an idler shaft 33 forming a front-rear rotation shaft extending in the left-right lateral (width) direction is installed, and an operation-type chain transmission drive mechanism 21 is installed.
A pair of front and rear swing arms 17 having hook portions 18 at the ends are fixed to a driven shaft 33 as a front and rear rotation shaft at a distance from each other in the form of being fixed.

On the other hand, the conveyor frame 2 of the secondary roller conveyor 21.
2 differs from the main roller conveyor 11 only in that the basic structure does not substantially include a front leg frame, and the arm-supported portion and the roller-supported portion according to the present invention are the same as those of the left and right roller support frames 23. A support bar 27, which supports and engages with the hook portion 18 of the lever type handle 32 operation type front-back swing arm 1734 provided at the rear end portion of the conveyor frame 12 of the main roller conveyor 11, is fixed between the front end portions, and At the lower end of the roller support frame 23, a roller support plate 28 serving as a roller support part that protrudes to a portion directly below each of the left and right ends of the roller 24 supported by the roller support frame 23 is attached. .

As described above, the main roller conveyor 11 and the sub-roller conveyor 21 having the conveyor frames 12 and 22 having the basic structure to which the structure of the present invention is added are supported on the hook portion 18 of the former front-back swing arm 17 by supporting the latter. When the bar 27 is supported and the latter is joined to the back of the former (see FIG. 1 and FIG. 2), the latter is placed on the former and is not in use (see FIG. 1). Through the operation of the handle 32 of the transmission drive mechanism 31, the front-back swing arm 17 is swung forward from the rear extension state to the standing state. As a result, the front end of the conveyor frame 22 of the slave roller conveyor 21 is moved forward while being lifted via the support bar 27, and the front end of the roller support plate 28 attached to both roller support frames 23 is moved to the front of the main roller conveyor 11. It is mounted on both ends of the roller 14 at the rear end and supported (shown by phantom lines in FIG. 2). Then, the slave roller conveyor 21 is pushed forward. This allows
Feeding by the caster 26 at the rear end and the subsequent roller-supported plate 28 placed on the roller 14 of the main roller conveyor 11 are advanced by the rotation thereof, and finally, a virtual line is shown in FIG. As shown in, the entire length of the main roller conveyor 11 is placed on the group of rollers 14 and stacked.

On the contrary, when changing from the non-use state to the use state as described above, first, the rear end of the conveyor frame 12 of the main roller conveyor 11 is operated through the chain transmission drive mechanism 31 by operating the handle 32. The front-rear swing arm 17 attached to the rear side is swung rearward so as to extend to the rear (rear extension state). Then, by pulling or pushing the slave roller conveyor 21 rearward, the rear end portion is moved backward via the casters 26, and the roller 1 of the main roller conveyor 11 is moved.
The portions on both ends of the fourth group are sequentially moved rearward through the rotation of the group of rollers 14 to move the rollers 14
Lower from the top of the group, and finally the support bar 2 at the front end
7 is supported by the hook portion 18 of the front-back swing arm 17. As a result, as shown in FIG. 1, the secondary roller conveyor 21 is connected behind the main roller conveyor 11 in a horizontally extending state.

In FIG. 3, reference numeral 29 indicated by an imaginary line is a lateral movement restricting skirt, which is attached to the lower end of the roller support frame 23 of the conveyor frame 22 of the secondary roller conveyor 21 via the roller support plate 28. The form is shown (in this form, the skirt 29 and the roller-supported plate 28 can be formed of a chevron because they form a chevron).

The conveyor assembly of the present invention can be embodied in various forms other than the above, and needless to say, is not limited to the form described above.

[0017]

As is apparent from the above description, according to the roller conveyor assembly according to the present invention, the slave roller conveyors can be stacked on the main roller conveyor, so that the storage space on the plane can be reduced from the conventional one. It can be reduced to one half.

[Brief description of drawings]

FIG. 1 is a side view schematically showing the entire appearance of an embodiment of a roller conveyor assembly according to the present invention.

FIG. 2 is an enlarged side view in which a part of a main part of the embodiment shown in FIG. 1 is cut away.

FIG. 3 is an enlarged front view of a main part when the embodiment shown in FIG. 1 is not used.

[Explanation of symbols]

11 Main roller conveyor 12 conveyor frames 13 Roller support frame 14 Laura 15 Leg frame 16 casters 17 Front and rear swing arm 18 Hook part 21 Secondary roller conveyor 22 Conveyor frame 23 Roller support frame 24 roller 25 leg frame 26 casters 27 Support bar 28 Roller support plate 29 Lateral movement control skirt 31 Chain transmission drive mechanism 32 lever type handle 33 Driven shaft

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Claims (3)

[Claims] Claims: 1. A caster is attached to each of the lower ends of the front and rear ends of a conveyor frame extending forward and backward, and at the rear end of the conveyor frame, a manually-operated front-back swing arm having a hook portion at its tip is extended backward. A main roller conveyor that is swingable from the standing state to the standing state, and casters are attached to the lower end of the rear end of the conveyor frame that extends back and forth, and at the front end of the conveyor frame, the rear part of the hook of the front and rear swing arms. A roller support frame for the main roller conveyor is provided, which is provided with arm supported parts that can be supported from the extended state to the upright state, and which protrudes inward to the right and left roller support frames of the conveyor frame up to the portions directly below each end of the roller. A subordinate roller conveyor assembly comprising a subordinate roller conveyor having supportable rollers supported at respective ends. 2. The roller conveyor assembly according to claim 1, wherein the front-rear swing arm comprises an arm fixed to a front-rear rotation shaft that is driven by a handle operation type transmission drive mechanism. 3. A lateral movement restricting skirt portion that extends downward in the roller support frame of the conveyor frame of the slave roller conveyor so as to be able to face the roller support frame of the conveyor frame of the main roller conveyor on the outer side of the roller support portion. The roller conveyor assembly according to claim 1 or 2, further comprising: