JP2011188634A - Cover structure for large-sized rack - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cover structure for a large-sized rack which prevents formation of a gap or step at a joint of a wide cover and allows safe work. <P>SOLUTION: A support metal part 10 is laid on an opening of a rack P. A bearing cover 20 is so provided that its one end is placed on the support metal part 10. A continuous cover 30 is disposed close to the one end of the bearing cover 20. A locking piece 21 is set along the one end of the bearing cover 20 to be locked on an end of the continuous cover 30 adjacent to the bearing cover. A locking piece 31 is set along the end of the continuous cover 30 adjacent to the bearing cover 20 to be locked on the one end of the bearing cover 20. Both locking pieces 21 and 31 are locked on the ends of the bearing cover 20 and continuous cover 30 that are adjacent to each other. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a cover structure that covers a wide rack having a width exceeding 700 mm, for example, and particularly to a cover structure for a large rack that can prevent a step when a person is placed on a joint of the cover. Is.

  When installing a wide rack such as a cable rack or refrigerant pipe rack installed on the roof of a building, workers need to take measures to reinforce the cover during installation and maintenance. Become.

  Patent Document 1 describes a cover device for a large rack previously proposed by the present applicant. In this cover device, the wide cover is bent into a mountain shape, and a support bracket for supporting the cover is installed in the opening of the rack, so that the strengthened portion can be used as a sidewalk surface on which an operator is placed. I can do it now.

  Furthermore, as shown in Patent Document 2, the present applicant provides a cable rack cover that prevents distortion and deformation of the cover end, and a method for manufacturing the same. The present invention increases the strength of the cover itself and prevents distortion and deformation of the cover end.

Japanese Patent No. 2586992 Japanese Patent No. 4356093

  As in Patent Document 1, an operator can be placed on the wide cover R by installing the support fitting S in the opening of the cover. However, at the joint of the cover R, the degree of bending of the cover R due to the load greatly changes between the position directly supported by the support bracket S and the position supported by the other cover R, and there is a step at the joint. It sometimes occurred.

  That is, as shown in FIG. 10 (a), when a cover R is stacked on the support fitting S, when a load is applied to the upper cover R, the load is applied to the support fitting S via the lower cover R. Therefore, even if the support fitting is bent due to the weight of the worker or the like, there is no gap between the covers. However, as shown in FIG. 6B, when a load is applied to the lower cover R, the upper cover R does not bend and the lower cover R and the support fitting S are bent. Therefore, the upper cover R and the lower cover R are bent. A gap may be formed between the cover R and a step at the joint of the cover R. In particular, this tendency becomes prominent at the junction of racks, for example, at the joint of wide covers R used for LA branch and T branch, and this step is a problem in work safety for the operator.

  Therefore, as disclosed in Patent Document 2, there is a means for reinforcing the end of the cover to reinforce the bending of the cover itself. However, even if the cover is strengthened, if the support bracket is bent, the same as in FIG. The situation will not be resolved.

  On the other hand, when reinforcing the support bracket, as shown in FIG. 11, a means for preventing the deflection of the support bracket by arranging a reinforcing material Q under the cover R is effective. However, when this reinforcing material Q is arranged in the rack, there arises a disadvantage that the effective space for wiring and piping in the rack (the hatched portion in the figure) is reduced by the volume of the reinforcing material Q.

  In addition, as shown in FIG. 12, a means for arranging a reinforcing material Q for reinforcing the cover R on the rack P is also effective. However, in this case, since the cover R is placed on the reinforcing material Q at the top of the rack, a large gap is generated between the cover R and the rack P. Moreover, the reinforcing material Q itself is greatly exposed at the upper part of the rack P. Therefore, it is necessary to bend or weld a blindfold member on the side surface of the reinforcing material so that the reinforcing material Q and the gap are not exposed. There is an inconvenience leading to cost increase.

  Further, in order to prevent a step from occurring at the joint of the cover, it is also effective to integrate the ends of adjacent covers by welding or screwing. However, in order to integrate a wide cover by welding after installation, the total weight and size of the cover becomes large, and it becomes a dangerous work unless the number of workers is increased. In particular, among the covers of wide racks, the striped steel cover used for the LA branch and T branch is larger than the original cover plate, and cannot be manufactured unless it is originally divided. Therefore, when these covers are joined and integrated, the weight and size of the entire cover are further increased, the storage space is increased, and there is a disadvantage that transportation work and installation work become extremely difficult. In addition, when joining by welding, after hot dip galvanization, distortion caused by welding occurs, which hinders the installation and causes appearance problems.

  Therefore, the present invention was created to solve the above-described problems, and aims to provide a cover structure for a large rack that can prevent a gap or a step at a joint of a wide cover and can perform a safe operation. It is.

  In order to achieve the above-mentioned object, the first means in the present invention is a large-sized rack cover structure that is installed so that an operator can place it with the large-sized rack opening covered, and is installed in the opening of the rack P. A mounting bracket 20, a mounting cover 20 on which one end located on the opening of the rack P is mounted on the supporting bracket 10, and one end of the mounting cover 20 is continuously installed adjacent to the trap. A locking piece 21 is provided along one end of the mounting cover 20 and locked on the adjacent end of the continuous cover 30, while the continuous cover 30 is adjacent to the mounting cover 20. A locking piece 31 is provided to be locked on one end portion of the placement cover 20 along the end portion of the mounting cover 20, and the locking pieces 21 are arranged on the adjacent end portions of the placement cover 20 and the continuous cover 30. 31 is provided to lock and install. .

  The mounting cover 20 and the continuous cover 30 described above as the second means are wide covers that cover the branch portions of the rack P.

  The support metal fitting 10 of the third means is a long support metal fitting 10 installed in the opening of the branch portion of the rack P.

  4th means WHEREIN: Let the said mounting cover 20 and the continuous cover 30 be a cross-sectional flat plate-shaped cover or a cross-sectional mountain-shaped cover as a means for a solution.

  According to the present invention, as in claim 1, by the structure provided to lock and install the locking pieces 21, 31 on the adjacent ends of the mounting cover 20 and the continuous cover 30, A load applied to the placement cover 20 is also applied to the continuous cover 30 via the locking piece 31. As a result, even if the support bracket 10 and the continuous cover 30 are bent, the mounting cover 20 and the continuous cover 30 are bent in the same manner, and between the ends of the mounting cover 20 and the continuous cover 30, There is no longer a risk of creating a conventional gap. In addition, there is no need for a reinforcing material above the rack or under the cover as in the conventional case, and it is possible to walk safely without integrating the covers by welding or the like, which is also suitable for appearance. become.

  Further, as described in the second and third aspects, when the wide cover for covering the branch portion of the rack P and the long support metal fitting 10 are constructed according to the present invention, the area is particularly widened. Even in a place where the deflection is large, it is possible to reliably prevent a step generated at the joint of the cover.

  Furthermore, as described in claim 4, the mounting cover 20 and the continuous cover 30 are made to have a flat cross-sectional shape or a mountain-shaped cross section, thereby preventing gaps in the connecting portions regardless of the shape of the cover. Is possible.

It is principal part sectional drawing which shows the use condition of this invention. It is a disassembled plan view which shows one Example of this invention. It is a front view which shows the installation state of one Example of this invention. It is a top view which shows one Example of the support metal fitting of this invention. It is a side view which shows one Example of the support metal fitting of this invention. It is a disassembled top view which shows the other Example of this invention. It is a front view which shows the installation state of the other Example of this invention. It is a top view which shows the other Example of the support metal fitting of this invention. It is a front view which shows the installation state of the other Example of this invention. (A), (b) is principal part sectional drawing which shows the conventional use condition. It is a schematic sectional drawing which shows the conventional reinforcement means. It is a principal part perspective view which shows the conventional reinforcement means.

  According to the present invention, by providing the locking pieces 21 and 31 so as to be locked and installed on the adjacent ends of the mounting cover 20 and the continuous cover 30 on the support bracket 10, There is no need to use a reinforcing material on the top or under the cover, and it is possible to perform safe work without causing a step at the joint of the wide cover without integrating the covers by welding or the like. Achieved the purpose.

  Examples of the present invention will be described below. The structure of the present invention is a structure for installing a wide cover that covers the opening of the large rack P, and is particularly installed so that an operator can work safely.

  The main configuration of the present invention is that the support bracket 10 installed in the opening of the rack P, the mount cover 20 for mounting one end portion on the support bracket 10, and one end portion of the mount cover 20 are allotted It consists of the continuous cover 30 installed (refer FIG. 1).

  1 to 5 show an embodiment of the present invention. That is, the support bracket 10 is installed obliquely at the position where the two wide covers formed with a connection width wider than the width of the opening portion of the linear portion of the rack P are connected at the LA branch portion of the rack P. (See FIG. 2).

  The mounting cover 20 is a cover member that mounts one end located on the opening of the rack P on the support bracket 10, and is associated with one or a plurality of locations along the one end of the mounting cover 20. A stop piece 21 is provided. And this latching piece 21 is latched on the edge part of the continuous cover 30 adjacent to the mounting cover 20 (refer FIG. 3). The locking piece 21 in the illustrated example is welded to the longitudinal center portion of one end of the mounting cover 20 so that it overlaps the upper surface of the continuous cover 30 when the ends of the mounting cover 20 and the continuous cover 30 are brought together. (See FIG. 1). In addition, the mounting cover 20 is formed with a locking step portion 22 that is locked on the adjacent linear cover at the other end located on the opening of the rack P (see FIG. 2). . Further, a conventional support bracket 40 shorter than the support bracket 10 of the present invention is installed in the opening of the linear portion of the rack P, and an end portion on which the locking step portion 22 is formed is placed thereon. (See FIG. 3).

  The continuous cover 30 is a cover member in which the support fitting 10 of the mounting cover 20 is installed adjacent to the edge of the flange (see FIG. 2). The continuous cover 30 is also provided with one or a plurality of locking pieces 31 along the end. And this latching piece 31 is latched on the one end part of the said mounting cover 20 (refer FIG. 3). In the illustrated example, a pair of locking pieces 31 that are locked to the mounting cover 20 on both sides of the locking piece 21 are formed. At this time, the support strength of the continuous cover 30 can be increased by installing the locking piece 31 on the placement cover 20 so as to overlap the support fitting 10 (see FIG. 1). The continuous cover 30 of the illustrated example is also formed with a locking step 32 that is locked on the adjacent linear cover at the end located on the straight line side of the rack P (see FIG. 2). In addition, a conventional support bracket 40 shorter than the support bracket 10 of the present invention is installed in the opening on the straight side of the rack P, and an end portion on which the locking step portion 32 is formed is placed thereon (see FIG. (See FIG. 3).

  The support bracket 10 of the present invention is constructed on the wide portion of the opening of the rack P and is formed longer than the conventional support bracket 40. The illustrated support fitting 10 is a member that is installed in the opening of the branch portion of the rack P, and includes a pair of locking bodies 11 that are locked on the opening edges along the left and right longitudinal sides of the rack P, and The support housing 12 is continuous with the locking body 11 (see FIG. 4). The shape of the illustrated locking body 11 particularly corresponds to the opening edge shape of the branch portion of the rack P. That is, the latching body 11 is fixed to the coupling piece 11A coupled to the support housing 12 and bent from the tip of the coupling piece 11A, and latched and fixed to the outer surface of the rack P from the upper opening edge of the rack P. It consists of a piece 11B (see FIG. 5). And this fixed piece 11B respond | corresponds to the opening edge shape of the rack P. As shown in FIG. In the illustrated example, a fixing piece 11B provided at a position substantially perpendicular to the connecting piece 11A and a fixing piece 11B provided at an oblique position with respect to the connecting piece 11A are configured (see FIG. 4). . In this manner, the shape of the locking body 11 is a shape that adapts to the shape of the opening of the rack P.

  On the other hand, the support housing 12 is formed of a tough material such as channel steel. In the illustrated example, the end of the locking body 11 is inserted into a support housing 12 having a substantially C-shaped cross section and connected by welding or the like (see FIG. 4). As described above, the support bracket 10 of the present invention is longer than the conventional support bracket 40 used for the linear portion of the rack P, and has a shape suitable for the shape of the opening of the rack P (FIG. 2). reference).

  6 to 8 show a second embodiment of the present invention. That is, the support bracket 10 is installed at a position where three wide covers are connected at the T branch portion of the rack P (see FIG. 6). In this embodiment, one mounting cover 20 disposed in the center and two continuous covers 30 disposed on both sides thereof are joined together by two support fittings 10 (see FIG. 7). As described above, the number of the placement covers 20 and the continuous covers 30 can be appropriately increased at a position where the area of the opening of the rack P is extremely wide.

  In the illustrated example, a reinforcing support fitting 50 having the same shape as the support fitting 10 is added to the lower surface of the central portion of the placement cover 20 placed on the two support fittings 10 to increase the support strength of the placement cover 20. . By carrying out like this, the bending of the mounting cover 20 can be reduced as much as possible. At this time, the continuous cover 30 of the illustrated example is also formed with a locking step 32 that is locked on the adjacent cover over almost the entire end located on the straight side of the rack P (see FIG. 6). ). A conventional support bracket 40 shorter than the support bracket 10 of the present invention is installed in the opening of the straight portion of the rack P, and an end portion on which the locking step 32 is formed is placed thereon. (See FIG. 7). The support fitting 10 used in this embodiment is provided with fixing pieces 11B provided at oblique positions with respect to the connecting piece 11A at both ends of the support housing 12 (see FIG. 8).

  FIG. 9 shows a third embodiment of the present invention. In this embodiment, the support fitting 40 is installed in the opening of the straight portion of the rack P, particularly the wide straight portion. The rack cover of the present invention installed on the support bracket 40 has one end located on the opening of the rack P as a placement cover 20 and the other end as a continuous cover 30 and is composed of a single cover member. ing. In the illustrated example, a plurality of support fittings 40 are continuously installed at equal intervals in the opening of the rack P, and the present invention cover is continuously installed. In the illustrated example, a reinforcing support bracket 50 is installed on the lower center surface of the cover of the present invention to increase the support strength of the cover of the present invention.

  As described above, in the structure of the present invention, the support metal fitting 40 is installed in the opening of the rack P, and the placement cover 20 is placed on the support metal fitting 40 so that one end thereof is applied thereto. Next, the continuous cover 30 is installed on the placement cover 20 so that the locking pieces 31 are locked. At this time, adjustment is made so that the locking piece 21 of the mounting cover 20 is locked on the continuous cover 30. Since the mounting cover 20 and the continuous cover 30 installed in this way are in a state where the locking pieces 21 and the locking pieces 31 are locked on the other side, the joints of these covers are integrated. Is. As described above, the joint integrated by the locking piece 21 and the locking piece 31 can integrate the bending and increase the strength of the end of the joint.

  Moreover, although the mounting cover 20 and the continuous cover 30 in the illustrated example have been described in the flat plate-like embodiment, they can be used for a cover having a cross-sectional shape shown in Patent Document 1 described above. The design of the cross-sectional shape and the planar shape of each cover can be freely changed.

  The present invention is mainly used as a cover for covering the opening of a wide rack P for wiring and piping, but can also be used for a rack P having a normal width or a rack for other purposes. It is. Moreover, it is not limited to the example of illustration, A free design change is possible in the range which does not change the summary of this invention.

P Rack Q Reinforcement material R Cover S Support bracket 10 Support bracket 11 Locking body 11A Connecting piece 11B Fixed piece 12 Supporting housing 20 Placement cover 21 Locking piece 22 Locking step 30 Continuous cover 31 Locking piece 32 Locking step Part 40 Support bracket 50 Reinforcing support bracket

Claims (4)

  In a cover structure for a large rack installed so that an operator can place it with the opening of the large rack covered, a support bracket erected on the opening of the rack P, and an upper portion of the rack on the support bracket And a continuous cover with one end of the mounting cover installed adjacent to the wing, and the adjacent end of the continuous cover along the one end of the mounting cover. On the other hand, a locking piece to be locked is provided on the portion, and on the other hand, a locking piece to be locked on one end portion of the mounting cover is provided along an end portion adjacent to the mounting cover of the continuous cover. A cover structure for a large rack, which is provided so as to lock and install the locking pieces on adjacent ends of the cover and the continuous cover.   2. The cover structure for a large rack according to claim 1, wherein the placement cover and the continuous cover are wide covers that cover the branched portions of the rack.   2. The cover structure for a large rack according to claim 1, wherein the support bracket is a long support bracket that is installed in an opening of a branch portion of the rack.   The cover structure for a large rack according to claim 1, wherein the placement cover and the continuous cover are a cover having a cross-sectional flat plate shape or a cross-sectional mountain shape.

Images