JP7128049B2 - frame cover device - Google Patents

Description

The present invention relates to a frame cover device that covers the outer surface of a longitudinal frame having an upper frame portion and a lower frame portion and having an outer outer surface opening between the upper frame portion and the lower frame portion.

2. Description of the Related Art Conventionally, for example, conveyors such as roller conveyors and belt conveyors use a frame having an approximately C-shaped cross section with an open outer surface. Since electrical parts such as substrates and wiring may be arranged in the frame, a cover body is attached to the outer surface of the frame, and the cover body covers the opening on the outer surface of the frame.

The cover body has a mounting structure that is fitted into the opening edge (lip portion) of the frame, and is configured so that it can be easily mounted and removed from the frame without the use of tools. There are many.

However, when an operator works near the conveyor, the operator may accidentally contact the cover body and the cover body may fall off the frame.

Moreover, if a projecting object is formed from the outer surface of the cover main body in order to add a structure for preventing the cover main body from coming off, the operator may be caught by the projecting object, which is not preferable.

Japanese Patent No. 2582944 Japanese Patent Application Laid-Open No. 2002-187610

Further, in this type of frame cover device, there is a need to reliably prevent the cover main body from falling off from the frame without protruding objects from the outer surface of the cover main body.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a frame cover device that has no projections from the outer surface of the cover body and can reliably prevent the cover body from coming off the frame.

The frame cover device of the present invention is a frame cover device that covers the outer surface of a longitudinal frame having an upper frame portion and a lower frame portion, and an outer surface between the upper frame portion and the lower frame portion being open. a longitudinal cover portion covering the outer surface of the frame; an upper engaging portion provided along the longitudinal direction on the upper side of the cover portion and engaged with the upper frame portion; and a lower side of the cover portion. a cover body including a lower engagement portion provided along the longitudinal direction of the cover body; a mounting portion disposed on the lower surface side of the lower frame portion and fastened by a fastener that penetrates the lower frame portion; a holding part that is engaged with the lower engaging part of the cover main body, and a holder that sandwiches and holds the cover main body between the upper frame part and the lower side of the cover main body; The engaging portion has an outer side surface opposite to the frame side provided at a position closer to the frame side than the position of the outer side surface of the cover portion, and the mounting portions of the two holders are arranged at the lower side. The side frame parts are overlapped on the lower surface side and fastened together by the fasteners that pass through the lower frame parts, and the holding part of one of the holding parts engages the lower engaging part of the cover body. The holding part of the other holding tool is engaged with the outer surface of the lower engaging part of the cover body .

According to the present invention, there is no projecting object from the outer surface of the cover body, and it is possible to reliably prevent the cover body from coming off the frame.

1 is an enlarged right side view of a conveyor provided with a frame cover device showing a first embodiment of the present invention; FIG. It is a right side view of a conveyor same as the above. It is an enlarged front view of a conveyor same as the above. It is a schematic plan view of a conveyor same as the above. Fig. 2 is a front view of a cover body of the same frame cover device; It is a rear view of a cover main body same as the above. It is a right side view of a cover main body same as the above. FIG. 4 is a plan view of the same cover main body; It is a bottom view of a cover main body same as the above. FIG. 4 is a plan view of a holder of the same frame cover device; FIG. 3 shows the same frame cover device, wherein (a) to (c) are right side views showing the mounting procedure of the frame cover device, and (d) is a right side view showing an open state of the cover main body. The frame cover device positioned at the end of the same conveyor is shown, (a) is a right side view, and (b) is a right side view showing an open state of the cover main body. Fig. 10 is an enlarged right side view of a conveyor provided with a frame cover device showing a second embodiment of the present invention;

A first embodiment of the present invention will be described below with reference to FIGS. 1 to 12. FIG.

Conveyor 10 is shown in FIGS. The conveyor 10 is a roller conveyor that carries an object to be conveyed in the conveying direction F. As shown in FIG.

The conveyor 10 is formed longitudinally along the transport direction F. As shown in FIG. The conveyor 10 includes a frame body 11, a plurality of rollers 12 rotatably supported on the frame body 11, and a drive mechanism 13 for rotating these rollers 12. As shown in FIG.

The frame body 11 has frames 16 and 17 arranged on both sides in the width direction of the conveyor 10 perpendicular to the conveying direction F and supporting both ends of the plurality of rollers 12 . The sides of the frames 16 and 17 facing each other will be referred to as the inner side, and the sides opposite to the inner sides of the frames 16 and 17 will be referred to as the outer side.

The frame 16 is made of a metal material, for example, and has a substantially C-shaped cross section and is elongated. The frame 16 has an inner side surface portion 18 along the vertical direction, and an upper frame portion 19 and a lower frame portion 20 that are bent outward from the upper and lower ends of the inner side surface portion 18 at substantially right angles and face each other. there is The upper frame portion 19 includes an upper flange portion 21 that is bent outward from the upper end of the inner side surface portion 18 at a substantially right angle, and an upper lip that is bent downward from the tip of the upper flange portion 21 at a substantially right angle. It has a part 22. The lower frame portion 20 includes a lower flange portion 23 that is bent outward from the lower end of the inner side surface portion 18 at a substantially right angle, and a tip of the upper flange portion 23 that is bent upward at a substantially right angle. It has a curved lower lip 24 . An opening 25 is formed along the longitudinal direction on the outer surface between the upper frame portion 19 and the lower frame portion 20, that is, between the upper lip portion 22 and the lower lip portion 24 facing each other. there is

A plurality of roller mounting holes 26 are provided from the upper frame portion 19 of the frame 16 to the inner side surface portion 18 . Further, the inner side surface 18, the upper flange 21 and the lower flange 23 of the frame 16 have a plurality of longitudinal holes for connecting with other frame members and for mounting parts such as sensors. are formed at predetermined intervals along the That is, the frame 16 is pre-formed with a plurality of various holes even if they are not actually used. The hole portion formed in the lower flange portion 23 includes a non-circular hole portion 27 that is, for example, square.

Note that the frame 17 and the frame 16 have a common configuration.

Further, the roller 12 has a shaft portion and a cylindrical roller portion 29 rotatably supported by the shaft portion. Both ends of the shaft projecting from both ends of the roller portion 29 are attached to the roller attachment holes 26 of the frames 16 and 17 . A plurality of rollers 12 supported between frames 16 and 17 are arranged side by side along the conveying direction F, and a conveying surface for placing a conveyed object on the upper surface of these rollers 12 and conveying it in the conveying direction F is formed. It is configured.

The drive mechanism 13 includes a drive shaft 31 arranged below the plurality of rollers 12, a motor (not shown) that rotates the drive shaft 31 through a drive transmission mechanism including a gear 32 attached to the drive shaft 31, and a plurality of transmission belts 34 for transmitting rotational force from a plurality of pulleys 33 attached to the drive shaft 31 to each roller 12, and the like. Then, the driving mechanism 13 rotates the plurality of rollers 12 integrally, and conveys the article placed on the rollers 12 in the conveying direction F. As shown in FIG.

In some cases, the frames 16 and 17 are provided with electrical components such as substrates and wiring. As shown in FIG. 2, when the worker m is working near the frame 16 side of the conveyor 10, a frame covering the opening 25 on the outer side of the frame 16 is used to hide the inside of the frame 16. A cover device 40 is used. Note that the frame cover device 40 may also be used on the frame 17 side.

As shown in FIG. 1, the frame cover device 40 includes a cover body 41 that is a frame cover for a conveyor, a plurality of holders 42 that hold the cover body 41 to the frame 16, and these holders 42 fastened to the frame 16. It has a plurality of fasteners 43 that The frame cover device 40 will also be described with the frame 16 side as the inside and the side opposite to the frame 16 as the outside, corresponding to the inside and the outside of the frame 16 .

The cover body 41 is shown in FIGS. 5-9. 5 is a front view of the cover body 41, FIG. 6 is a rear view of the cover body 41, FIG. 7 is a right side view of the cover body 41, FIG. 8 is a plan view of the cover body, and FIG. be. Note that the cover main body 41 is continuous to the left and right in the front view, and for example, while the vertical dimension is 125 mm, the dimension in the horizontal continuous direction is 1500 mm or 1200 mm. The left side view appears symmetrically with the right side view.

The cover main body 41 is integrally formed of a metal material such as aluminum. The cover body 41 has a longitudinal shape and is continuously formed in the same shape along the longitudinal direction by, for example, extrusion molding. The cover main body 41 includes a longitudinal cover portion 46, an upper engaging portion 47 provided along the upper end of the cover portion 46 along the longitudinal direction, and a lower engaging portion 47 provided along the lower end of the cover portion 46 along the longitudinal direction. An engaging portion 48 is provided. The vertical dimension of the cover body 41 is smaller than the vertical dimension of the frame 16 and greater than the vertical dimension of the opening 25, that is, the distance between the upper lip portion 22 and the lower lip portion 24 facing each other.

The cover portion 46 is formed in a flat plate shape. A knurled portion 49 is formed on the outer surface 46a of the cover portion 46. As shown in FIG. The knurled portion 49 has a plurality of concave and convex shapes along the vertical direction of the cover portion 46 and is continuously formed in the longitudinal direction of the cover portion 46 . That is, the knurled portion 49 is formed in a flat knurled shape. Note that the knurled portion 49 is shown only in FIGS. 5 and 7, and is omitted in other drawings. Note that the outer surface 46a of the cover portion 46 is not limited to the flat knurl shape, and may be formed in another surface shape such as a twill knurl shape. Further, the outer surface 46a of the cover portion 46 may be a flat surface without forming the knurled portion 49. FIG.

The upper engaging portion 47 is formed on the tip end side of the upper surface portion 50 that is bent inward from the upper end of the cover portion 46 at a substantially right angle, and has a substantially U-shaped cross section that opens upward. The upper engaging portion 47 includes an outer piece portion 51 that is bent downward from the tip of the upper surface portion 50 at a substantially right angle, an inner piece portion 52 that faces the inner surface of the outer piece portion 51, and an inner piece portion 52 that faces the inner surface of the outer piece portion 51. and a connecting piece portion 53 connecting the lower ends of the inner piece portion 52, and an upper groove 54 opening upward between the outer piece portion 51, the inner piece portion 52 and the connecting piece portion 53. . The upper end side of the inner piece portion 52 is lower than the upper end side of the outer piece portion 51 and is inclined away from the outer piece portion 51 . Then, the upper lip portion 22 of the upper frame portion 19 is relatively inserted into the upper groove 54 , and the upper engaging portion 47 is engaged with the upper lip portion 22 of the upper frame portion 19 .

The lower engaging portion 48 is formed in a substantially U-shaped cross section opening downward on the tip side of a lower surface portion 55 that is bent inward from the lower end of the cover portion 46 at a substantially right angle. The lower engaging portion 48 includes an outer piece portion 56 bent downward from the tip of the lower surface portion 55 at a substantially right angle, an inner piece portion 57 opposed to the inner surface of the outer piece portion 56, and these outer pieces. It has a connecting piece portion 58 that connects the upper ends of the portion 56 and the inner piece portion 57 and a lower groove 59 that opens downward between the outer piece portion 56 and the inner piece portion 57 . The outer piece portion 56 and the inner piece portion 57 are formed to have the same height (length) dimension. An outer surface 48a of the lower engaging portion 48 (an outer surface of the outer piece 56) is provided at a position closer to the frame 16 side than the outer surface 46a of the cover portion 46 toward the inside. That is, a stepped portion 60 recessed from the outer surface 46a of the cover portion 46 is formed on the outer surface 48a of the lower engagement portion 48 (the outer surface of the outer piece 56). The step size of the stepped portion 60 is approximately the same as the plate thickness of the holder 42 or larger than the plate thickness of the holder 42 . Then, a part of the holder 42 is relatively inserted into the lower groove 59 and the lower engaging portion 48 is engaged with the holder 42 .

Further, as shown in FIGS. 1 and 10, the holder 42 is formed by bending a metal plate, for example, into a substantially L shape. The holder 42 has a mounting portion 62 and a holding portion 63 bent upward from the outer end of the mounting portion 62 at a substantially right angle. A long hole 64 is formed in the mounting portion 62 along a direction intersecting the longitudinal direction of the cover body 41 and connecting the inner end and the outer end of the mounting portion 62 . The attachment portion 62 is arranged on the lower surface side of the lower frame portion 20 and fastened by a fastener 43 that is inserted through the lower frame portion 20 and the long hole 64 . The holding portion 63 is inserted into the lower groove 59 of the lower engaging portion 48 of the cover body 41 and engaged with the lower engaging portion 48 . The holder 42 sandwiches and holds the cover main body 41 between itself and the upper frame portion 19 . The holders 42 are arranged, for example, in correspondence with at least two locations in the vicinity of both ends of one cover body 41 in the longitudinal direction.

The fastener 43 also includes a bolt 66 and a nut 67 screwed onto the bolt 66, as shown in FIG.

Bolt 66 has a head 68 and a threaded portion 69 . Furthermore, the bolt 66 has a detent 70 provided between the head 68 and the threaded portion 69 . The head 68 is formed in a spherical shape without an engaging groove for a screwdriver tool. The anti-rotation portion 70 is formed to have a non-circular cross-section and, for example, a square cross-section. In this way, the bolt 66 is, for example, a square root round head bolt. The head 68 of the bolt 66 is arranged inside the frame 16 , and the threaded portion 69 is inserted from the inside of the frame 16 into the hole 27 and passed through the lower surface side of the lower frame portion 20 . The anti-rotation portion 70 is fitted into the hole 27 of the lower frame portion 20 to prevent rotation of the frame 16 . The anti-rotation portion 70 protrudes slightly from the lower surface side of the lower frame portion 20. As shown in FIG.

The nut 67 has a flange nut 71 and a cap nut 72 . A flange nut 71 and a cap nut 72 are screwed in order with the elongated hole 64 of the holder 42 inserted into the threaded portion 69 of the bolt 66 inserted through the lower surface side of the lower frame portion 20. .

Next, the mounting operation of the frame cover device 40 will be described.

As shown in FIG. 11(a), the threaded portion 69 of the bolt 66 is inserted into the hole 27 from the inside of the frame 16, and the anti-rotation portion 70 is fitted into the hole 27. As shown in FIG. The bolts 66 are attached to the frame 16 at, for example, positions corresponding to at least two locations near both ends of one cover body 41 in the longitudinal direction. In addition, when the length of the cover body 41 is long, the number may be three or more.

After the elongated hole 64 of the holder 42 is passed through the threaded portion 69 inserted through the lower surface side of the frame 16, the flange nut 71 is screwed. At this time, the flange nut 71 is not tightened but left loose. By positioning the flange nut 71 on the tip end side of the threaded portion 69 in a loosened state, the holder 42 tilts or moves up and down within the range in which the long hole 64 can float with respect to the threaded portion 69. can be moved.

The upper fitting portion 47 of the cover body 41 is engaged with the upper lip portion 22 so that the upper lip portion 22 of the frame 16 is relatively inserted into the upper groove 54 of the cover body 41, and the lower side of the cover body 41 is opened. The mating portion 48 is positioned outside the lower lip portion 24 of the frame 16 .

As shown in FIG. 11(b), the holding portion 63 of the holder 42 is engaged with the lower side of the cover body 41 so that the tip side of the holding portion 63 of the holder 42 is inserted into the lower groove 59 of the cover body 41. As shown in FIG. engages portion 48; Also, the mounting portion 62 of the holder 42 is arranged on the lower surface side of the frame 16 . At this time, a part of the anti-rotation portion 70 of the bolt 66 protrudes from the bottom surface of the frame 16. The anti-rotation portion 70 is inserted into the elongated hole 64 of the holder 42, and the mounting portion 62 is attached to the bottom surface of the frame 16. Can be placed on the side.

As shown in FIG. 11(c), the flange nut 71 is tightened while the lower fitting portion 48 of the cover body 41 is pressed against the outer surface of the lower lip portion 24 of the frame 16, and the head 68 of the bolt 66 and the The lower flange portion 23 of the frame 16 and the attachment portion 62 of the retainer 42 are fastened together with the flange nut 71 . At this time, since the bolt 66 is prevented from rotating with respect to the frame 16, even if the head 68 is arranged in the frame 16, it can be fastened simply by turning the flange nut 71. As shown in FIG.

Furthermore, after fastening with the flange nut 71, the cap nut 72 is screwed onto the tip side of the threaded portion 69 protruding from the flange nut 71, and the cap nut 72 is tightened and fixed to the flange nut 71. The cap nut 72 prevents the loosening of the flange nut 71 and hides the tip side of the threaded portion 69 .

By tightening the flange nut 71, the cover main body 41 is pushed up by the holder 42, and the cover main body 41 is sandwiched and held between the upper lip portion 22 of the frame 16 and the holder .

Also, as shown in FIG. 4, when a plurality of cover bodies 41 are arranged along the longitudinal direction of the frame 16 of the conveyor 10 (FIG. ), and the holders 42 are arranged on the frame 16 corresponding to, for example, two locations for each cover body 41, but the holders 42 arranged at the extreme ends of the frame 16 of the conveyor 10 in the longitudinal direction are one. Two retainers 42 are used in place. 4 shows the cover main body 41 of the A area and the cover main body 41 of the B area, which are held at two points A1 and A2 of the cover main body 41 of the A area and at two points B1 and B2 of the cover main body 41 of the B area. In addition, two holders 42 are used at the extreme longitudinal ends A1 and B2 of the frame 16 of the conveyor 10. As shown in FIG.

At the extreme longitudinal ends A1 and B2 of the frame 16 of the conveyor 10, two retainers 42, 42 of the same configuration are mounted together on bolts 66, as shown in FIG. 12(a). That is, the mounting portions 62, 62 of the two holders 42, 42 are arranged vertically on the lower surface side of the frame 16 and fastened together by a fastener 43 that penetrates the frame 16. As shown in FIG. The holding portion 63 of the upper holding tool 42 is inserted into the lower groove 59 of the cover body 41 and engaged with the lower engaging portion 48, and the holding portion 63 of the other lower holding tool 42 is engaged. is engaged with the outer surface 48a of the lower engaging portion 48 of the cover body 41. As shown in FIG. By sandwiching the lower engaging portion 48 of the cover main body 41 between the two holders 42 , 42 , the cover main body is firmly held to the frame 16 . This prevents the cover body 41 from slipping in the longitudinal direction of the conveyor 10 .

In the attached state of the frame cover device 40, the cover main body 41 cannot be removed from the frame 16 unless the fastener 43 is operated to release the fastening. The cover main body 41 does not come off from.

Moreover, the holder 42 is engaged from the lower side of the cover body 41, and has a structure in which the cover body 41 is sandwiched and held between the frame 16 and the holder 42, and the holder 42 is attached to the frame. 16 and attached with fasteners 43, there is no protrusion on the outer surface 46a of the cover portion 46 of the cover main body 41, and the worker m is not caught.

When the frame cover device 40 is to be removed, it is necessary to perform the operations in the order of FIGS.

Also, when opening the opening 25 of the frame 16 for inspection of the conveyor 10 or handling of trouble, loosen the cap nut 72 as shown in FIGS. 11(d) and 12(b). Remove it, loosen the flange nut 71 and move it to the lower end side of the threaded portion 69 . The cover main body 41 and the holder 42 are moved downward while maintaining the engaged state between the cover main body 41 and the holder 42 to disengage the upper engaging portion 47 from the upper lip portion 22 of the frame 16 .

Even if the cover body 41 and the holder 42 are moved downward and the upper engaging portion 47 is removed from the upper lip portion 22 of the frame 16, the mounting portion 62 of the holder 42 abuts on the flange nut 71, so that the holder does not move. The cover body 41 is supported by the frame 16 through 42 without falling off. Further, the threaded portion 69 extends below the frame 16, and the elongated hole 64 of the holder 42 can move, such as tilting or moving up and down, within the range of floating with respect to the threaded portion 69. , the upper end of the cover body 41 tilts away from the outer surface of the frame 16 due to the weight of the cover body 41, and the opening 25 of the frame 16 is opened.

Therefore, the fastener 43 engages the cover main body 41 from the outer surface of the frame 16 via the retainer 42 in a state where the fastening of the fastener 43 is loosened and the upper engaging portion 47 is disengaged from the upper lip portion 22 . It is supported in a state in which the joining portion 47 is tilted in the direction of separation.

By thus tilting the cover body 41 and opening the opening 25 of the frame 16, it is possible to inspect and work on the parts arranged in the frame 16 without removing the cover body 41 from the frame 16. Become.

After inspecting or performing work on the parts arranged inside the frame 16, the upper end side of the cover body 41 is moved closer to the frame 16 so that the upper lip portion 22 of the frame 16 fits into the upper groove 54 of the cover body 41. The upper fitting portion 47 of the cover body 41 is engaged with the upper lip portion 22 so as to be relatively inserted.

At this time, since the upper end side of the inner piece portion 52 is lower than the upper end side of the outer piece portion 51, the upper engaging portion 47 of the cover main body 41 is moved so that the upper end side of the cover main body 41 approaches the frame 16. , the inner piece 52 of the upper engaging portion 47 of the cover body 41 passes under the upper lip portion 22 and moves inside the upper lip portion 22, and the upper end side of the outer piece 51 moves outside the upper lip portion 22. Abut on the sides. In this state, the cover main body 41 is lifted along the outer surface of the frame 16 so that the upper lip portion 22 of the frame 16 is relatively inserted into the upper groove 54 of the cover main body 41. An upper mating portion 47 can be engaged with the upper lip portion 22 . Therefore, the opened cover main body 41 can be easily combined with the frame 16 .

Then, the flange nut 71 is tightened and fastened, and the cap nut 72 is attached to the threaded portion 69 of the bolt 66 again.

As described above, in the frame cover device 40 of the present embodiment, the holder 42 engages with the cover main body 41 from below, and the cover main body 41 is sandwiched and held between the frame 16 and the holder 42. In addition, since the holder 42 is arranged on the lower side of the frame 16 and attached with the fastener 43, there is no projection on the outer surface of the cover body 41, and the worker m is not caught. Moreover, since the cover main body 41 cannot be removed from the frame 16 unless the fastening by the fasteners 43 is released, the cover main body 41 will not come off from the frame 16 even if the worker m touches the cover main body 41. do not have. Therefore, according to the frame cover device 40, there is no projecting object from the outer surface of the cover body 41, and it is possible to reliably prevent the cover body 41 from coming off the frame 16. FIG.

Moreover, since the retainer 42 can be engaged at any position in the longitudinal direction with the lower engaging portion 48 provided along the longitudinal direction of the cover body 41, the retainer 42 can be positioned at any position on the frame 16. Even when attached, the retainer 42 can engage with the lower engagement portion 48 of the cover body 41 to hold it.

In addition, since the upper lip portion 22 is inserted into the upper groove 54 of the upper engaging portion 47 of the cover body 41, and the holding portion 63 of the holder 42 is engaged with the lower groove 59 of the lower engaging portion 48, the cover is The main body 41, the upper lip portion 22 and the retainer 42 can be firmly engaged.

Furthermore, since the cover main body 41 has the lower groove 59 into which the holding part 63 of the holder 42 is inserted, the holder 42 does not protrude from the outer surface of the cover main body 41, and the operator m is caught by the holder 42. can prevent

In addition, since the lower engaging portion 48 of the cover body 41 is provided at a position closer to the frame 16 than the position of the outer surface 46a of the cover portion 46, the lower engaging portion 48 is engaged. The holder 42 can be arranged at a position recessed from the outer surface 46a of the cover portion 46, and the operator m can be prevented from being caught in the holder 42. - 特許庁

Also, when two holders 42 are combined with one fastener 43, the holding portion 63 of one holder 42 is engaged with the lower engaging portion 48 of the cover body 41, and the holding portion of the other holder 42 is engaged. 63 is engaged with the outer surface 48a of the lower engaging portion 48 of the cover main body 41, the lower engaging portion 48 of the cover main body 41 is sandwiched between the two holders 42, 42, and the cover main body 41 is attached to the frame 16. It can be held firmly. Therefore, it is possible to reliably prevent the cover body 41 from slipping in the longitudinal direction with respect to the frame 16 .

Furthermore, when two holders 42 are combined with one fastener 43, the lower engaging portion 48 of the cover body 41 is provided at a position closer to the frame 16 than the position of the outer surface 46a of the cover portion 46. This prevents the holding portion 63 of the other holder 42, which is engaged with the outer surface 48a of the lower engaging portion 48 of the cover body 41, from protruding from the outer surface 46a of the cover portion 46. It is possible to prevent the operator m from being caught in the holder 42. - 特許庁

In addition, since the head 68 of the bolt 66 of the fastener 43 is arranged inside the frame 16 and the threaded portion 69 is inserted through the bottom surface of the frame 16, the threaded portion 69 does not protrude into the frame 16. The bolts 66 do not interfere with the arrangement of the parts, wiring, etc., arranged inside the frame 16, and the screw parts 69 do not damage the parts, wiring, etc. arranged inside the frame 16.例文帳に追加

Further, the fasteners 43 move the cover body 41 to the outside of the frame 16 via the holders 42 in a state where the fastening of the fasteners 43 is loosened and the upper engaging portion 47 of the cover body 41 is disengaged from the upper lip portion 22 . Since the upper engaging portion 47 can be supported in an inclined state in a direction away from the side surface, the outer surface of the frame 16 can be opened to inspect and work inside the frame 16 without removing the cover body 41 from the frame 16. can do.

Moreover, since the mounting portion 62 of the holder 42 has a long hole 64 extending in a direction crossing the longitudinal direction of the cover body 41 and through which the threaded portion 69 of the bolt 66 is inserted, the fastening of the fastener 43 is loosened. With the upper engaging portion 47 of the cover main body 41 disengaged from the upper frame portion 19, the cover main body 41 can be tilted in the direction in which the upper engaging portion 47 is separated from the outer surface of the frame 16 via the holder 42. can be done.

Next, FIG. 13 shows a second embodiment.

The frame 16 has a substantially U-shaped cross section without a lip. That is, the frame 16 has an inner side surface portion 18 , an upper flange portion 21 that is the upper frame portion 19 , and a lower flange portion 23 that is the lower frame portion 20 . An opening 25 is formed between the outer end of the upper flange portion 21 and the outer end of the lower flange portion 23 . Other configurations of the frame 16 are the same as in the first embodiment.

The frame cover device 40 corresponding to the frame 16 has the same configuration of the holder 42 and the fastener 43 as the first embodiment, but the configuration of the upper engaging portion 47 of the cover main body 41 is different. .

The upper engaging portion 47 of the cover main body 41 is formed in a substantially U-shaped cross section that opens inward at the tip side of the upper surface portion 50 that is bent inward from the upper end of the cover portion 46 at a substantially right angle. It is The upper engaging portion 47 includes a first piece portion 81 extending from the tip of the upper surface portion 50, a second piece portion 82 facing the lower surface of the first piece portion 81, these first piece portions 81 and A connecting piece portion 83 connecting the outer ends of the second piece portion 82, and an upper opening formed inwardly between the first piece portion 81, the second piece portion 82 and the connecting piece portion 83. It has a gutter 54. The tip side of the second piece 82 is shorter than the tip side of the first piece 81 and is inclined away from the first piece 81 . Then, the upper flange portion 21 of the upper frame portion 19 is relatively inserted into the upper groove 54 and the upper engaging portion 47 is engaged with the upper flange portion 21 .

Then, in order to attach the frame cover device 40 to the frame 16, the retainer 42 and the fastener 43 are attached to the frame 16, and the upper engaging portion 47 of the cover body 41 is engaged with the outer end of the upper flange portion 21 of the frame 16. The holding part 63 of the holding tool 42 is engaged with the lower engaging part 48 of the cover body 41 , and the holding tool 42 is fastened to the frame 16 with the fastener 43 . As a result, the cover main body 41 is pushed up by the holder 42, and the cover main body 41 is sandwiched and held between the upper flange portion 21 of the frame 16 and the holder .

Also, when opening the opening 25 of the frame 16 for inspection of the conveyor 10 or for troubleshooting, first loosen and remove the cap nut 72, loosen the flange nut 71, and loosen the lower end of the threaded portion 69. move to Subsequently, the upper engagement portion 47 of the cover main body 41 is moved outward and removed from the upper flange portion 21 of the frame 16 . As a result, the upper end side of the cover body 41 tilts in the direction in which the upper engaging portion 47 separates from the outer surface of the frame 16 due to the weight of the cover body 41, and the opening 25 of the frame 16 is opened.

Also in the frame cover device 40 of the second embodiment, effects similar to those of the frame cover device 40 of the first embodiment can be obtained.

The frame cover device of each embodiment can be applied not only to roller conveyors but also to various conveyors such as belt conveyors.

Further, the frame cover device of each embodiment can be applied not only to the frame of the conveyor but also to a conveying device using a frame having a substantially C-shaped cross section or a substantially U-shaped cross section, and other equipment and mechanisms.

16 frames
19 Upper frame part
20 Lower frame
40 Frame cover device
41 Cover body
42 retainer
43 Fasteners
46 Cover
46a outer surface
47 upper engaging part
48 Lower engaging part
48a outer surface
54 upper groove
59 Lower groove
62 Mounting part
63 Holding part
64 slot
66 volts
67 Nut
68 head
69 thread

Claims (5)

A frame cover device covering an outer surface of a longitudinal frame having an upper frame portion and a lower frame portion and having an outer outer surface between the upper frame portion and the lower frame portion opened,
A longitudinal cover portion covering the outer surface of the frame, an upper engaging portion provided on the upper side of the cover portion along the longitudinal direction and engaged with the upper frame portion, and a longitudinal direction on the lower side of the cover portion. a cover body including a lower engaging portion provided along the
It has a mounting portion arranged on the lower surface side of the lower frame portion and fastened by a fastener that penetrates the lower frame portion, and a holding portion engaged with the lower engaging portion of the cover main body. , a holder that sandwiches and holds the cover body between itself and the upper frame portion;
and
The lower engaging portion of the cover body has an outer surface opposite to the frame side provided at a position closer to the frame side than the position of the outer surface of the cover portion,
The attachment portions of the two holders are arranged on the lower surface side of the lower frame portion and are fastened together by the fasteners that pass through the lower frame portion, and the holding portion of one of the holders. is engaged with the lower engaging portion of the cover main body, and the holding portion of the other holding tool is engaged with the outer surface of the lower engaging portion of the cover main body. Frame cover device. A frame cover device covering an outer surface of a longitudinal frame having an upper frame portion and a lower frame portion and having an outer outer surface between the upper frame portion and the lower frame portion opened,
A longitudinal cover portion covering the outer surface of the frame, an upper engaging portion provided on the upper side of the cover portion along the longitudinal direction and engaged with the upper frame portion, and a longitudinal direction on the lower side of the cover portion. a cover body including a lower engaging portion provided along the
It has a mounting portion arranged on the lower surface side of the lower frame portion and fastened by a fastener that penetrates the lower frame portion, and a holding portion engaged with the lower engaging portion of the cover main body. , a holder that sandwiches and holds the cover body between itself and the upper frame portion;
and
The fastener is
a bolt having a head and a threaded portion, and a nut threaded onto the threaded portion of the bolt, the head of the bolt being disposed inside the frame and the threaded portion being threaded into the lower frame portion; It is inserted through the bottom side,
In a state in which the fastening of the fastener is loosened and the upper engaging portion is disengaged from the upper frame portion, the cover body is moved in a direction away from the outer surface of the frame via the retainer. A frame cover device characterized by being supported in an inclined state. 3. The frame cover device according to claim 2 , wherein the mounting portion of the holder has an elongated hole extending in a direction crossing the longitudinal direction of the cover body and through which the threaded portion of the bolt is inserted. A frame cover device covering an outer surface of a longitudinal frame having an upper frame portion and a lower frame portion and having an outer outer surface between the upper frame portion and the lower frame portion opened,
A longitudinal cover portion covering the outer surface of the frame, an upper engaging portion provided on the upper side of the cover portion and engaged with the upper frame portion, and a lower engaging portion provided on the lower side of the cover portion. a cover body comprising
It has a mounting portion arranged on the lower surface side of the lower frame portion and fastened by a fastener that penetrates the lower frame portion, and a holding portion engaged with the lower engaging portion of the cover main body. a holder for holding the cover main body in such a state that the upper engaging portion is engaged with the upper frame portion and the cover portion covers the outer surface of the frame;
and
The attachment portions of the two holders are arranged on the lower surface side of the lower frame portion and are fastened together by the fasteners that pass through the lower frame portion, and the holding portion of one of the holders. is engaged with the lower engaging portion of the cover main body, and the holding portion of the other holding tool is engaged with the outer surface of the lower engaging portion of the cover main body
A frame cover device characterized by: A frame cover device covering an outer surface of a longitudinal frame having an upper frame portion and a lower frame portion and having an outer outer surface between the upper frame portion and the lower frame portion opened,
A longitudinal cover portion covering the outer surface of the frame, an upper engaging portion provided on the upper side of the cover portion and engaged with the upper frame portion, and a lower engaging portion provided on the lower side of the cover portion. a cover body comprising
A holding portion that is arranged on the lower surface side of the lower frame portion and is fastened by a fastener that penetrates the lower frame portion, and a holding portion that is engaged with the lower engaging portion of the cover body. tool and
and
In the holding portion, the upper engaging portion of the cover main body engages the upper frame portion in a state where the mounting portion is fastened by the fastener, and the cover portion covers the outer surface of the frame. When the fastening of the mounting portion by the fastener is released, the upper engaging portion of the cover body is supported in a state inclined in a direction away from the upper frame portion.
A frame cover device characterized by:

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