JP3151281U - Belt conveyor safety fence mounting structure - Google Patents

Abstract

Provided is a belt conveyor safety fence mounting structure that can be installed without incurring high costs to ensure safety and can be easily maintained. In a belt conveyor, mounting brackets (21, 28) are attached to a conveyor frame by sandwiching the conveyor frame, and mounting posts (23, 210) for a fence panel are fixed to the mounting bracket. A fence panel is attached to the hook portion (24, 211) of the support post by being hooked. In the belt conveyor provided with the carrier stand (12) for supporting the carrier roller, the mounting bracket (21) can be attached to the conveyor frame and the carrier stand. [Selection] Figure 3

Description

  The present invention relates to a structure for attaching a belt conveyor safety fence, and more particularly to a structure that can be installed without incurring high costs to ensure safety and facilitate maintenance.

  The belt conveyor is the cheapest transport machine and is widely used in various factories and facilities, but the operator accidentally contacts or gets caught in moving parts such as the conveyor belt and carrier roller while the belt conveyor is in operation. If there is a concern about accidents such as injuries, countermeasures are required.

  Conventionally, a plurality of arc-shaped struts are attached to a conveyor frame at intervals, and a flexible sheet is received by the arc-shaped struts to form a cover that covers the entire carrier side of the conveyor belt. A belt conveyor has been proposed (Patent Document 1). In this type of belt conveyor, the operator is less likely to come into contact with movable parts such as the conveyor belt, but the work needs to be lifted each time maintenance is performed, which complicates the work.

  On the other hand, the portal frame is fixed to the conveyor frame, the upper ends of the left and right covers are suspended from the center of the horizontal beam of the portal frame, and the lower ends of the left and right covers can be detached from the carrier stand that supports the carrier roller. Has been proposed (Patent Document 2), in which the entire carrier side of the conveyor belt is covered with left and right covers.

  In the belt conveyor described in Patent Document 2, there is little possibility that an operator will come into contact with a movable part such as a conveyor belt. Furthermore, since the left or right cover may be opened upward, maintenance can be facilitated.

Utility Model Registration No. 3028206 JP 54-122578 A

  However, in the belt conveyor described in Patent Document 2, it is necessary to install a large number of gate-shaped frames over the entire length of the conveyor belt, which is applied to a belt conveyor that requires large equipment and high cost, and requires low cost. It is hard to do.

  An object of the present invention is to provide a safety fence for a belt conveyor that can be installed without incurring high costs and can guarantee safety and can be easily maintained.

  Therefore, the belt conveyor safety fence mounting structure according to the present invention is a belt conveyor in which a conveyor belt is stretched endlessly by a conveyor frame, and an attachment bracket is sandwiched between the conveyor frame and the conveyor frame. The mounting bracket is fixed to the mounting bracket directly or via a connecting plate, and is mounted by hooking the fence panel to the hook portion of the mounting column. To do.

  One of the features of the present invention is that the mounting bracket is clamped and attached to the conveyor frame, the mounting support post of the mounting bracket is fixed, and the fence panel is attached to the hook of the mounting support.

  Thereby, the fence panel can be attached using an existing conveyor frame, and it is not necessary to provide a portal frame or the like, so that the equipment is not increased in size and cost is increased. In addition, even if an operator accidentally approaches the movable part of the belt conveyor too much, the operator's body or fingers do not touch the fence panel and get caught in the movable part of the belt conveyor, ensuring safety. it can.

  Furthermore, since the fence panel is suspended, safety equipment can be constructed at a low cost, and the belt conveyor can be easily maintained by lifting or removing the fence panel. If the fence panel is suspended and pressed with a cotter, it can be fixed securely.

  In the above description, the fence panel is attached using the conveyor frame. However, there is a system in which the belt conveyor can receive the carrier side belt by the carrier roller. In the case of such a system, the fence panel can be attached using a carrier stand that supports the carrier roller.

  In the belt conveyor safety fence mounting structure according to the present invention, a conveyor belt is stretched endlessly by a conveyor frame, while a carrier stand is fixed to the conveyor frame, and a carrier roller is rotatably supported by the carrier stand. In the belt conveyor in which the carrier side belt is received by the carrier roller, an attachment bracket is attached to the conveyor frame and the carrier stand by sandwiching the conveyor frame and the carrier stand, and a fence panel is attached to the attachment bracket. The mounting column is fixed directly or via a connecting plate, and is attached by hooking a fence panel to the hook portion of the mounting column.

  The mounting post may be fixed directly to the mounting bracket, but if a connecting plate is provided between the mounting bracket and the mounting post, a distance can be provided between the fence panel and the movable part of the belt conveyor. Safety can be further improved.

  Mounting posts are provided to extend from the carrier side of the conveyor belt to the return side, or are provided on each of the carrier side and return side of the conveyor belt, and a fence panel is provided on each of the carrier side and return side of the conveyor belt. Is good.

  With the above-described structure, the fence panel can be installed on the belt conveyor. However, when a single long fence panel is used, attachment / detachment to / from the attachment column and maintenance of the belt conveyor are complicated.

  Therefore, it is preferable to connect the adjacent fence panels to each other by providing a plurality of fence panels along the conveyor belt and fitting a connecting member having a U-shaped cross section into the outer end portion of the adjacent fence panels.

  The fence panel may be a plate, but if it is manufactured by stretching a net or hanging a rod around the outer frame, the fence panel is hardly affected by wind or the like, and there is little risk of falling even if it is suspended. .

  The fence panel can be formed by stretching a net on the outer frame, but the net may be a wire net or a resin net. In addition, the fence panel can be configured by spanning one or more bars on the outer frame in the vertical direction or the horizontal direction, but the bar may be a metal bar or a synthetic resin bar. The outer frame can be manufactured using a metal material or a synthetic resin material, and may be solid or a pipe. Furthermore, the shape of the outer frame is not particularly limited, and may be a rectangular shape as shown in the following embodiment, and may adopt an arbitrary shape such as a circular shape, an elliptical shape, a hexagonal shape, other polygonal shapes, and animals. You can also.

It is a schematic block diagram which shows the belt conveyor provided with preferable embodiment of the safety fence by the attachment structure which concerns on this invention. It is a principal part side view which shows the state which removed the fence panel in the said embodiment. It is a front block diagram which shows the said embodiment. It is a top view which shows the attachment state of the carrier stand of the attachment bracket in the said embodiment, and a conveyor frame. It is a figure which shows the attachment state of the connection member with respect to the fence panel in the said embodiment. It is a side view which shows the connection member in the said embodiment. It is a front block diagram which shows 2nd Embodiment. It is a principal part side view which shows the state which removed the fence panel in 3rd Embodiment. It is a front block diagram which shows the said embodiment. It is a top view which shows the attachment state of the carrier stand of the attachment bracket in the said embodiment, and a conveyor frame. It is a front block diagram which shows 4th Embodiment. It is a schematic block diagram which shows the belt conveyor provided with 5th Embodiment. It is a principal part side view which shows the state which removed the fence panel in the said embodiment. It is a front block diagram which shows the said embodiment. It is a principal part side view which shows the state which removed the fence panel in 6th Embodiment. It is a front block diagram which shows the said embodiment.

  Hereinafter, the present invention will be described in detail based on specific examples shown in the drawings. 1 to 6 show a preferred embodiment of a belt conveyor safety fence mounting structure according to the present invention. In the figure, a U-shaped conveyor frame 10 extends in the longitudinal direction, and a driving roller and a driven roller (not shown) are rotatably supported at both front and rear ends of the conveyor frame 10, and between the front and rear rollers. The conveyor belt B is stretched endlessly, and the drive rollers are driven by a drive motor (not shown) so that the conveyor belts BC and BR are driven.

  A plurality of short frames 11 are fixed to the conveyor frame 10 with appropriate intervals in the longitudinal direction and extending in the width direction, and carrier stands 12 and 13 are fixed to the short frame 11 with intervals therebetween. 11 and 12, rotation shafts of an inclined roller (carrier roller) 14 and a horizontal roller (carrier roller) 15 are rotatably supported, and the carrier side belt BC is received by the horizontal roller 12 and the inclined roller 13.

  Further, a return stand 16 is attached to the conveyor frame 10 so as to extend downward. A return shaft of the return roller 17 is rotatably supported by the return stand 16, and the return side belt BR is received by the return roller 17.

  A mounting bracket 21 is attached to the outer carrier stand 12 by sandwiching the carrier stand 12 and tightened with bolts and nuts, and a connecting plate 22 is fixed to the mounting bracket 21 by extending outward. At the end, a mounting support 23 extends vertically and is fixed.

  A welding nut is used as the nut of the mounting bracket 21, and one part of the mounting bracket 21 is bent into an L shape (crank shape), so that the mounting bolt 21 can be easily and accurately sandwiched between the carrier stand 12, It can be easily installed with bolts. Thereby, it is possible to perform work safely even at high places.

  A hook portion 24 is fixed to the upper portion of the mounting column 23, and the fence panel 27 is suspended from the mounting column 23 by hooking an outer frame of the rail panel 27 to the hook portion 24.

  A locking ring 25 is fixed to an intermediate portion of the mounting column 23. The locking ring 25 is inserted into the central portion of the suspended fence panel 27. A cotter 26 is inserted into the locking ring 25 and the fence panel. 27 is pressed against the mounting column 23 and mounted. The cotter 26 is attached to the attachment column 23 with a rope or the like so as not to be lost when the cotter 26 is removed from the locking ring 25.

  The fence panel 27 is manufactured by arranging bars on the outer frame vertically and horizontally, and a plurality of fence panels 27 are arranged and attached along the belt conveyor. Adjacent fence panels 27 are connected to each other by fitting a connecting member 215 having a U-shaped cross section into the opposing portions of the upper end portion and the lower end portion.

  A mounting bracket 28 is attached to the conveyor frame 10 by sandwiching the conveyor frame 10 and tightened with bolts and nuts. A connection plate 29 extends outwardly and is fixed to the mounting bracket 28, and is attached to the outer end of the connection plate 29. The mounting column 210 extends downward and is fixed.

  As with the mounting bracket 21, the mounting bracket 28 uses a weld nut as a nut, and one part of the mounting bracket 28 is bent into an L-shape (crank shape), so that the conveyor frame can be simplified with the mounting bracket 28. And it can be pinched accurately and can be easily attached with bolts.

  A hook portion 211 is fixed to an intermediate portion of the mounting column 210, and the fence panel 214 is suspended from the mounting column 210 by hooking an outer frame of the fence panel 214 to the hook portion 211.

  A locking ring 212 is fixed to the lower portion of the mounting column 210, and the locking ring 212 is inserted into the central portion of the suspended fence panel 214. A cotter 213 is inserted into the locking ring 212 and the fence panel 214. Is attached to the mounting column 210 by pressing against the mounting column 210, and the cotter 213 is mounted on the mounting column 210 with a rope or the like.

  The fence panel 214 is manufactured by arranging bars on the outer frame vertically and horizontally, and a plurality of fence panels 214 are arranged along the belt conveyor and attached. Adjacent fence panels 214 are connected to each other by fitting a connecting member 215 having a U-shaped spring section into the opposing portions of the upper end portion and the lower end portion. Thus, a safety fence 20 for the belt conveyor is configured.

  For example, when inspecting and servicing the belt conveyor, if an operator gets too close to movable parts such as the conveyor belts BC, BR, the carrier rollers 14, 15 and the return roller 17, there is a risk of injury. In the case of the safety fence 20, if the operator gets too close to the movable part, the worker touches the fence panels 27 and 214 of the safety fence 20 and does not come into contact with the movable part. .

  Further, when inspecting and maintaining movable parts such as the conveyor belts BC and BR, the carrier rollers 14 and 15, and the return roller 17, the fence panels 27 and 214 are suspended when the cotters 26 and 213 are pulled out from the locking rings 25 and 212. Since the connection member 215 is pulled out from the adjacent fence panels 27 and 215, when the fence panels 27 and 215 are removed from the hooks 24 and 211 or rotated upward, the operator can remove the belt conveyor. It can move freely to the movable part and work smoothly.

  Furthermore, since the fence panels 27 and 214 are attached using the carrier stand 11 and the conveyor frame 10, the structure is very simple and the cost is not increased.

Further, connecting plates 22 and 29 are provided between the mounting brackets 21 and 28 and the mounting posts 23 and 210, and the mounting posts 23 and 210 are connected to the conveyor belts BC and BR, the carrier rollers 14 and 15, the return roller 17, and the like. Since the fence panels 27 and 214 are also separated from the movable parts such as the conveyor belts BC and BR, the operator's accident at the time of inspection and maintenance can be surely prevented since they are separated from the movable parts.

  FIG. 7 shows a second embodiment. In the figure, the same reference numerals as those in FIGS. 1 to 6 denote the same or corresponding parts. This example is the same as the first embodiment except that the conveyor frame 10 'has an L-shaped cross section.

  8 to 10 show a third embodiment. In the figure, the same reference numerals as those in FIGS. 1 to 6 denote the same or corresponding parts. This example is the same as the first embodiment except that the mounting posts 23 and 210 are mounted on the mounting brackets 21 and 28.

  FIG. 11 shows a fourth embodiment. In the figure, the same reference numerals as those in FIGS. 8 to 10 denote the same or corresponding parts. This example is the same as the third embodiment except that the conveyor frame 10 'has an L-shaped cross section.

  12 to 14 show a fifth embodiment. In the figure, the same reference numerals as those in FIGS. 1 to 6 denote the same or corresponding parts. In this example, the mounting bracket 28 is clamped on the conveyor frame 10. The mounting bracket 28 is mounted with a mounting post 23 extending vertically from the carrier side belt BC to the return side belt BR. The hook portion 24 and the locking ring 25 are provided, and the hook portion 211 and the locking ring 212 are provided on the lower side, and the carrier-side and return-side fence panels 27 and 214 are attached to the single mounting column 23. .

  15 and 16 show a sixth embodiment. In the figure, the same reference numerals as those in FIGS. 12 to 14 denote the same or corresponding parts. This example is the same as the fifth embodiment except that the conveyor frame 10 ′ has an L-shaped cross section.

10, 10 'Conveyor frame 11 Carrier stand 14, 15 Carrier roller 20 Safety fence 21, 28 Mounting bracket 22, 29 Connecting plate 23, 210 Mounting column 24, 211 Hook 25, 212 Locking ring 26, 213 Cotta 27, 214 Fence panel

Claims (4)

In the belt conveyor which is configured to stretch the conveyor belt endlessly by the conveyor frame,
A mounting bracket is attached to the conveyor frame by sandwiching the conveyor frame, and a mounting post for a fence panel is fixed to the mounting bracket directly or via a connecting plate, and is attached to a hook portion of the mounting post. The installation structure of the belt conveyor safety fence is characterized in that it is installed by hooking the fence panel. The conveyor belt is stretched endlessly by the conveyor frame, while a carrier stand is fixed to the conveyor frame, a carrier roller is rotatably supported on the carrier stand, and the carrier side belt is received by the carrier roller. Belt conveyor
A mounting bracket is attached to the conveyor frame and the carrier stand by sandwiching the conveyor frame and the carrier stand, and a mounting post of a fence panel is fixed to the mounting bracket directly or via a connecting plate. A belt conveyor safety fence mounting structure characterized in that a fence panel is attached to the hook portion of the support post.   3. The belt conveyor safety fence according to claim 1 or 2, wherein the mounting support posts are provided extending from the carrier side of the conveyor belt to the return side, and the fence panels are provided on each of the carrier side and the return side of the conveyor belt. Mounting structure. 3. The belt conveyor safety fence according to claim 1, wherein the mounting strut is provided on each of the carrier side and the return side of the conveyor belt, and the fence panel is provided on each of the carrier side and the return side of the conveyor belt. Mounting structure.