JP3217991U - Work floor - Google Patents

Abstract

Provided is a work floor which can be safely operated in a belt conveyor roller replacement operation. SOLUTION: Two stretchable materials B composed of a center material 11 whose both ends are directed in the left-right direction and a pair of left and right side members 12 that are non-rotatably fitted from both ends and that are freely stretchable are attached to a belt conveyor. An engagement portion D is provided on the outer ends of both side members 12 so as to cross the belt, and the engagement portions D are provided on both side conveyor frames of the belt conveyor so as to be engaged from above. A work floor in which fixing means 14 for fixing the engaging portion D is provided on the conveyor frame, and the edges of the floor material E spread so as to receive the falling conveyor rollers on both the left and right side materials 12 are supported via the support means 15. . [Selection] Figure 2

Description

  The present invention relates to a work floor that can be operated more safely without danger when replacing rollers used for transporting a conveyed product of a belt conveyor.

  Rollers used for transporting conveyed items on belt conveyors usually cause problems such as breakage and non-rotation almost in proportion to the operating time and environment of the conveyor. Maintenance work is being performed.

  That is, in most cases at the time of roller replacement work, since it is performed in a very dangerous environment, there has been a demand for a simple and compact portable work floor that can be operated more safely.

  When performing maintenance work on rollers, large and small kinds of tools and tools may be used, or new items to be replaced may be brought in depending on the situation.

  In addition, many of the replaced old rollers are cut to improve portability for processing or sorted according to the material and recycled.

  Originally, these operations are not applicable places, and are performed by taking them down to a safe ground in consideration of safety and work efficiency, or carrying out a damaged or unstable discard roller to a designated place on the premises.

  However, there are cases where the work is performed at a place installed at a high place or a complicated place. In this case, it is performed on the sidewalk on the side of the conveyor frame necessary for maintenance.

  However, in many belt conveyors, in order to give priority to preventing the accumulation of residue adhering to the surface of the return belt, a portion other than the portion immediately below the return roller is released, and thus a deck or the like is not provided.

  Moreover, in order to give priority to safety work, generally, a fall prevention measure in which a rope or the like is fastened to a tool or tools to be used is taken.

  In either case, of course, tools and tools are used, but there is no fall prevention measure under the belt between the return rollers. Work is very difficult because of the high risk of falling items.

  Also, when replacing the return roller, the removed return roller cannot be temporarily placed, which is a very dangerous operation.

  For this reason, the removed return roller may be pulled out to the sidewalk portion, for example, but it is not easy to take it in.

  For the reasons described above, there has been a demand for a movable (portable) work floor that can perform safe work even in a range other than the lower part of the roller.

  Therefore, even if the roller falls off the bracket for some reason, there is one in which the falling roller is received by a falling receptacle below the roller, and this falling receptacle is supported by a support plate that is supported by the left and right conveyor frames. The upstream and downstream parallel support rods to be attached, the parallel suspension body (consisting of chains) attached at both ends to the interspersed positions between both ends of the support rods, and the support supported by the hanging part of the parallel suspension body It is comprised from the body (refer patent document 1).

Utility Model Registration No. 3212959

  By the way, according to the method of Patent Document 1, both ends of the support rods arranged in parallel in the belt running direction are attached to the support plates of the left and right conveyor frames.

  However, the belt width of the belt conveyor (the dimension between both side edges of the belt) varies greatly, medium width, and small width depending on the belt conveyor.

  The lengths of parallel support rods (dimensions between both ends) differ depending on the different dimensions, and a plurality of types of support rods are required to cope with the different dimensions, which causes a problem of significant cost increase.

  Further, when both ends of the center support shaft of the return roller are separated from the stand of the conveyor frame and the return roller is collected, one end of the return roller may drop in advance.

  In this case, the fall leading end is fitted between the suspended bodies that are juxtaposed, and the shaft center of the return roller may be inclined and slipped along with the fitting, causing an accident. Therefore, the present invention is to provide a work floor that solves the above-described problems.

  In order to solve the above-described problems, the present invention is composed of a center material whose both ends are directed in the left-right direction, and a pair of left and right side materials that are non-rotatable from both ends of the center material and that are fitted in a stretchable manner. Two elastic members are arranged at the front and rear so as to cross the belt of the belt conveyor, and the engaging portions are brought into an engaging relationship by dropping from the upper side into the both side conveyor frames of the belt conveyor at the outer ends of the both side materials. And a fixing means for fixing the engaging portion to the conveyor frame at the engaging portion, and the edge of the floor material expanded so as to receive the falling conveyor roller on both the left and right side members. The structure which supported this via the support means is employ | adopted.

  Moreover, the structure which provided the fixing means which stops the slide of the said side material with respect to the said center material in both said side materials may be employ | adopted.

  As described above, according to the working floor of the present invention, the engaging portions are engaged with the conveyor frames on both sides, and the front and rear stretchable materials are laid, so that the flooring is spread between the stretchable materials. The falling roller accompanying the replacement work of the return side roller can be received on the floor material.

  For this reason, the occurrence of an accident due to the falling roller can be eliminated, and safe work can be performed. In addition, the work floor is portable and easy to handle.

In particular, since the flooring is held by two front and rear expansion members, even if the conveyor belt width changes to a large, medium, or small width, the side members on both sides of the center member are extended and slided. The position of the engaging portion at the outer end of the side member can be freely adjusted to freely change the mounting position of the engaging portion with respect to the conveyor frame.
For this reason, there exists a peculiar effect without the inconvenience of preparing multiple types of construction materials from which length differs.

  Further, since the engaging portion that is engaged with the conveyor frame can be fixed by the fixing means, the engaging portion is not detached from the conveyor frame, that is, there is an effect on safety.

  Further, since the side material is fixed to the center material via the fixing means, the width adjustment can be adjusted in accordance with the width of the conveyor frame, and there is an advantage that workability such as attachment becomes extremely good.

It is a partially cutaway front view showing an embodiment of this invention. It is an enlarged plan view same as the above. It is a partially notched enlarged plan view which shows the principal part same as the above. It is a longitudinal front view same as the above. It is a vertical side view which shows the edge support example of a flooring. It is a vertical side view which shows the fixing | fixed part which stops the slide of the side material with respect to a center material.

Next, an embodiment of the present invention will be described based on the drawings shown in FIGS.
A shown in FIG. 1 is a belt conveyor.

  As is well known, this belt conveyor A has an endless belt a passed over a head pulley and a tail pulley (both not shown because they are well known). The belt a on the return side is supported on the surface side by the return roller 2.

  As is well known, the center shaft 3 of the carrier roller 1 and the return roller 2 is provided with a notch in the shape of a concave notch on the upper surface of the roller stand 4 so as to face the outer periphery of both ends of the center shaft 3 (both are known). (It is not shown because it is publicly known) The engaging relationship is established by dropping from above, and the center shaft 3 is supported in a non-rotating state by this engaging relationship.

  Further, as shown in FIGS. 1 to 4, a center member 11 whose both ends are directed in the left-right direction, and a pair of left and right side members 12, 12 which are non-rotatable from both ends of the center member 11 and which are fitted in a telescopic manner. A pair of stretchable materials B in parallel is formed.

  And the engaging part D which drops into the both-sides conveyor frame C of the belt conveyor A from the upper direction, and is in the engagement relationship is provided in the outer end of both the side materials 12 and 12 of each expansion-contraction material B.

  As shown in FIGS. 3 and 4, the conveyor frame C uses an angle material, and the engaging portion D is opened on the lower surface so as to be engaged with the upright piece of the angle material from above (this opening). Is formed by the parallel plate 13 (to fit the upright piece of the angle member).

  And the factor which makes the side material 12 non-rotate with respect to the center material 11 is maintaining the dropping attitude | position which becomes an engagement relationship, when dropping so that the engaging part D may be fitted to the standing piece of the angle material of the conveyor frame C from the upper direction. The square pipe side material 12 is fitted to the square pipe center material 11 so as to be in a non-rotating state.

  The engaging part D is provided with a fixing means 14 for fixing the engaging part D to the conveyor frame C.

  As the fixing means 14, for example, as shown in FIGS. 2 and 4, as the bolts screwed from one side of the parallel plate 13 are screwed, the conveyor frame C is pressed against the other side of the parallel plate 13 at the protruding end of the bolt. Although the method is adopted, it is not limited, and other methods may be adopted and fixed.

  Furthermore, the left and right side members 12, 12 of the two stretchable materials B attached in parallel to the conveyor frame C are expanded floor materials that receive the return roller 2 that falls in response to work such as replacement of the return roller 2. The edge of E is supported through the support means 15.

  As shown in FIGS. 2 to 5, the floor material E supports the left and right side members 12 by providing a long hole 16 from the inner edge of both side surfaces of the side member 12 to the vicinity of the outer edge. A plurality of projecting shafts 17 at the end as supporting means 15 inserted through the center member 11 are attached to the center member 11 in a non-rotating state and not to be removed in the holes 18 of the side member 12, and are inserted into the through holes 19 of the supporting member 15. Although the edge of the flooring E is supported via the inserted carabiner 20, the edge of the flooring E may be supported by other methods without being limited thereto.

  In addition, although the net was shown in the figure as the above-mentioned flooring material E, it is not limited, for example, as long as the net and a sheet stacked on the net, in short, as long as it receives the fallen return roller 2. Good.

  By configuring as described above, even if the roller 2 or 1 is dropped during collection, it can be received on the flooring E, and an accident caused by dropping can be avoided.

In addition, if the support means 15 is provided on both sides as shown in the figure, the workability when the floor material E is expanded and supported is improved. That is, even if the front and rear of the two stretchable materials B attached to the conveyor frame C are interchanged, the edge of the floor material E which the support means 15 faces and spreads without any trouble can be supported.
In the figure, reference numeral 21 denotes a bolt that stops the expansion / contraction of the elastic material B.

A Belt conveyor a Belt B Stretch material C Conveyor frame D Engaging part E Floor material 1 Carrier roller 2 Return roller 3 Center shaft 4 Roller stand 11 Center material 12 Side material 13 Parallel plate 14 Fixing means 15 Support means 16 Long hole 17 Projection Shaft 18 Hole 19 Through hole 20 Carabiner 21 Bolt

Claims (2)

  Crossing the belt of the belt conveyor with two stretchable materials composed of a center material with both ends facing left and right, and a pair of left and right side members fitted in a non-rotatable and telescopic manner from both ends of the center material Arranged at the front and rear, and provided at the outer ends of the both side members are engaging portions that are brought into engagement with each other by being dropped from above into the conveyor frames on both sides of the belt conveyor. A fixing means for fixing the engaging portion is provided on the left and right sides, and the edge of the floor material spread so as to receive the falling conveyor roller on both the left and right side materials is supported via a supporting means. floor.   The work floor according to claim 1, wherein fixing means for stopping sliding of the side material with respect to the center material is provided on the both side materials.

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