WO2007091812A2

WO2007091812A2 - Cover structure for construction equipment case and manufacturing method thereof

Info

Publication number: WO2007091812A2
Application number: PCT/KR2007/000617
Authority: WO
Inventors: Dae Hoon Yun
Original assignee: Dae Hoon Yun
Priority date: 2006-02-07
Filing date: 2007-02-06
Publication date: 2007-08-16
Also published as: WO2007091812A3; KR100639583B1

Abstract

A cover structure for a construction equipment case is characterized in that said cover is formed in such a way that an outer side of the metallic plate is bent for thereby forming a first bent part, and an inner side of the metallic plate is cut for thereby forming an opening which is opened and closed, and a support bar is fixed at an opening of the cover in the upper and lower directions or the left and right directions, and an inwardly bent door support part is fixed at the upper and lower portions or the left and right portions of the opening in the opposite directions.

Description

COVER STRUCTURE FOR CONSTRUCTION EQUIPMENT CASE AND MANUFACTURING METHOD THEREOF

Technical Field

[1] The present invention relates to a cover structure for a construction equipment case and a manufacturing method of the same Background Art

[2] The present invention relates to a cover structure for a construction equipment case and a manufacturing method of the same, and in particular to a cover structure for a construction equipment case and a manufacturing method of the same in which a work process and time can be reduced, and a manufacturing and worker cost can be reduced, and a productivity can be enhanced.

[3] Generally, a fire extinguisher, various construction facilities such as a water meter and a water pump are buried in a wall body when an architecture such as apartment or building is built. An architecture case is used so as to accommodate such architecture facilities in a wall body. The architecture facility case is made by welding a hexagonal metallic plate. It comprises a box having a certain space opened forward, and a cover which is engaged at a front side of the box and in which a door is opened and closed. The architecture facilities are accommodated in an inner space of the box and are buried in the wall body of the architecture, so that it is possible to safely protect various architecture facilities in the wall body. If necessary, the door engaged at the over is opened, so that various works such as an architecture facility check are performed. In the case of the cover which is engaged at a front side of the conventional architecture facility cove, it is welded so that a plurality of metallic bars form a certain rectangular frame, and another metallic plate is welded at a front side of the rectangular frame. So, the work process increases, and the work time is extended. The manufacturing and worker costs increase, and the productivity is decreased. Disclosure of Invention

Technical Problem

[4] It is another object of the present invention to provide a cover structure for a construction facility case and a manufacturing method of the same in which a work process and a work time decrease, and a manufacturing and worker cost are decreased, so that a productivity can be significantly enhanced.

Advantageous Effects

[5] As described above, the cover 20 engaged at a front side of the case of the construction equipment is formed in a such a way that a first bent part 24 is formed by bending a surrounding side of the metallic plate 22, and an opening 26, which is opened and closed by the door 21, is formed by cutting a surface of the metallic plate 22. The work process during manufacturing is significantly decreased as compared to the conventional method in which a plurality of metallic bars are welded, and a metallic plate is additionally attached, and work time is decreased. So, the manufacturing cost and worker cost are decreased. Productivity is enhanced. A second bent part 28 is further provided at the first bent part 24 and is bent in a direction being opposite to the cover manufacturing metallic plate 22. So, it is possible to surely prevent the cover 20 from being bent and transformed thus ensuring the quality of the products such as strength. A cut part 28a is formed at the end of the upper and lower second bent part 28, so that the ends of the neighboring left and right second bent parts 28 are not overlapped with each other. The manufacturing is easy, and the quality is more enhanced. The support bar 30 installed at the opening 26 of the cover 20 is spot- welded at the rear side of the cover 20, so that the work is fast, and it is possible to minimize the physical change at the welded portions. In case that the size of the cover 20 is relatively larger, since the metallic reinforcing bar 50 is welded at the rear side of the cover 20, even larger size product can not be well bent and transformed. Brief Description of the Drawings

[6] The present invention will become better understood with reference to the accompanying drawings which are given only by way of illustration and thus are not limitative of the present invention, wherein

[7] Figure 1 is a disassembled perspective view of an architecture facility case according to the present invention;

[8] Figure 2 is a rear side perspective view illustrating a cover of Figure 1 ;

[9] Figure 3 is a cross sectional view of a manufacturing process of a cover of Figure 1 ;

[10] Figure 4 is a rear side view of a process that a door support part is formed in Figure

3; and

[11] Figure 5 is a rear side perspective view of another embodiment of the present invention. Best Mode for Carrying Out the Invention

[12] In a construction equipment case provided with a box having a space open forward in its interior, and a cover in which an opening and closing is engaged at a front side of the box, there is provided a cover structure for a construction equipment case characterized in that said cover is formed in such a way that an outer side of the metallic plate is bent for thereby forming a first bent part, and an inner side of the metallic plate is cut for thereby forming an opening which is opened and closed, and a support bar is fixed at an opening of the cover in the upper and lower directions or the left and right directions, and an inwardly bent door support part is fixed at the upper and lower portions or the left and right portions of the opening in the opposite directions, and both ends of one side of the opening and closing door are rotatably engaged at the support bar or the door support part provided at the opening in the upper and lower directions or the left and right directions with a hinge shaft being disposed between the same, and a locker is provide at the support bar or the door support part being opposite to the other end of the opening and closing door among the support bar and the door support part, and the rear side of the opening and closing door is engaged by means of the support bar or the door support part in a state that the opening and closing door is closed, and the opening and closing door is locked by means of the locker.

[13] The second bent part which is bent in the direction being opposite to the rear side of the metallic plate is further provided at an end of the first bent part.

[14] A cut part is formed at the end of the second bent part of the left and right sides or the upper and lower sides in the second bent part so that the ends of the neighboring second bent parts are not overlapped with each other.

[15] A support bar is spot- welded at the rear side of the metallic plate of the inner side of the second bent part.

[16] The support bar comprises an intermediate connection part, a spot welding part which is vertically bent at an end of the connection part and is spot- welded at the rear side of the cover, and a support shoulder 36 which is bent at the other end of the connection part in the direction being opposite to the cover and supports a surrounding side of the rear side of the door.

[17] A pair of cutting lines are formed at both ends of the upper and lower sides of the opening in parallel with respect to the outer side of the upper and lower directions, and an inner side of the cutting line is cut in an angle shape for thereby forming a door support part, and said door support part comprises a first support shoulder which is inwardly bent at the upper and lower sides of the opening of the cover, and a second support shoulder which is bent in a right angle direction and is opposite to the metallic plate at an end of the first support shoulder.

[18] A metallic reinforcing bar is welded at an outer rear side of the opening of the cover.

[19] In a method for manufacturing a cover for a construction case which manufactures a cover engaged at a front side of a box having a space opened forward in its interior, there is provided a method for manufacturing a cover for a construction equipment which comprises a first bent part forming step in which a surrounding part of a rectangular metallic plate is bent, and a first bent part is formed at a surrounding part of the metallic plate; an opening forming step in which one side of the metallic plate is cut, and an opening which is opened and closed by means of the door is formed; a door support mans forming step in which a support bar is fixed in the upper and lower directions or the left and right directions of the opening of the cover or a pair of door support parts are formed at both ends of the upper and lower sides or the left and right sides of the opening of the cover and are opposite to each other an opening and closing door assembling step in which both sides of one side end of the opening and closing door are rotatably engaged at the support bar or the door support part provided at the opening of the cover in the upper and lower directions of the right and left directions with a hinge shaft being disposed between the same; and a locker assembling step in which a locker is disposed at the support bar or the door support part which is opposite to the other end of the opening and closing door among the support bar and the door support part.

[20] There is further provided a second bent part forming step in which a second bent part is formed at an end of the first bent part in a direction being opposite to the metallic plate.

[21] There is further provided a cut part forming step in which a cut part is formed at an end of the left and right sides or upper and lower sides in the second bent part so that the ends of the neighboring second bent parts are not overlapped with each other.

[22] The support bar comprises an intermediate connection part, a spot welding part which is bent at an end of the connection part in a perpendicular direction, and a support shoulder which is bent in a direction being opposite to the cover and supports a rear side of the door, and a spot welding part of the support bar is spot- welded at the rear side of the metallic plate of the inner side of the second bent part.

[23] A pair of cutting lines are formed at both ends of the upper and lower sides or the left and right sides of the opening, and a door support part is formed by bending an inner side of the cutting lines, and said door support part comprises a first support shoulder which is perpendicularly bent at an inner side of the opening of the cover, and a second support shoulder which is perpendicularly bent at the end of the first support shoulder and is opposite to a rear side of the metallic plate.

[24] There is further provided a step for welding a metallic reinforcing bar at an outer rear side of the opening of the cover.

[25] The preferred embodiment of the present invention will be described with reference to the accompanying drawings.

[26] Figure 1 is a disassembled perspective view of an architecture facility case according to the present invention. Figure 2 is a rear side perspective view illustrating a cover of Figure 1. Figure 3 is a cross sectional view of a manufacturing process of a cover of Figure 1. Figure 4 is a rear side view of a process that a door support part is formed in Figure 3.

[27] As shown therein, in the present invention, a cover 20 is engaged at a front side of a box having a space opened forward. The cover 20 comprises a first bending part 24 which is vertically bent along a surrounding portion of a rectangular metallic plate22. An opening 26, which is opened and closed by the door 21, is formed by cutting one side of the rectangular metallic plate 22 in a rectangular shape. Support bars 30 are fixed at the opening 26 of the cover 20 in up and down directions or left and right directions. An intermediate support bar 31 is installed at an intermediate portion of the opening 26 of the cover 20 in a vertical direction. As shown in Figure 2, both lower ends of the door 21 are rotatably installed at both lower ends of the left and right support bars 30 and the intermediate support bar 31 with a hinge shaft 7 being disposed between the same. Reference numeral 8 is a hinge bracket which supports the hinge shaft 7. Reference numeral 9 represents a locker which keeps the door 21 closed. Since the locker 9 is formed of a conventional one, so that the detailed structure of the same will be omitted. As shown in Figure 2, an intermediate support bar 31 is installed at an intermediate portion of the opening 26 of the cover 20 in up and down directions. Both lower sides of one side of each of two doors 21 are engaged with the help of the left and right support bars 30 and the intermediate support bar 31 with the hinge shaft 7 being disposed between the same. In this case, when only one opening and closing door 21 is installed, it is not needed to install the intermediate support bar 31, namely, both lower sides of the lower side of the opening and closing door 21 are hinged at the left and right support bars 30 with the help of the hinge shaft 7. In the preferred embodiment of the present invention, both sides of one side of the opening and closing door 21 is rotatably assembled at the support bar 31. When the opening and closing door 21 is closed, the rear side of the opening and closing door 21 is supported with the help of the door support part 40. Both lower sides of one side of the opening and closing door 21 are rotatably engaged at the door support part 40 with the hinge shaft 7 being disposed between the same. The rear side of the opening and closing door 21 is supported by means of the support bar 31. An angle shaped door support part 40 is provided at the up and lower sides of the opening 26 of the cover 20 so that it is opposite to the inner side of the opening 26. A pair of cutting lines 26a are formed at both ends of the upper and lower sides of the opening 26 with being parallel in the up and down directions. The inner sides of the cutting lines 26a are bent in an angle shape for thereby forming the door support part 40. The door support part 40 comprises a first support shoulder 42 which is vertically bent inwardly at the upper and lower sides of the opening 26 of the cover 20, and a second support shoulder 44 which is vertically bent at an end of the first support shoulder 42 and is opposite to the metallic plate 22. When the door 21 is closed, in the first support shoulder 42, the upper and lower ends of the door 21 are opposite to each others, and the rear sides of the upper and lower sides of the door 21 are engaged at the second support shoulder 44. A second bent part 28 is provided at an end of the first bending part 24 of the cover 20 in the direction opposite to the metallic plate 22. A support part having an angle shaped cross section is provided at four sides of the cover 20 with the help of the first and second being parts 24 and 28. With the above structure, the cover 20 is not easily bent and is strongly supported. The surrounding part of the cover 20 is strongly supported by means of the second bent part 28. The first bent part 24 is bent so that it is perpendicular with respect to the rear side of the cover 20. The more the angle, the more it is bent. In the case that it is installed at a slant portion, not a right angle, it may be bent with more angle as compared to the right angle of the first bent part 24. In this case, the bending angle of the first bent part 24 is preferably 97 degree with respect to the rear side of the cover 20. A cut part 28a cut off in an angle shape is formed at both ends of the second bent part 28 of upper and lower sides of the second bent part 28 of four sides of the cover 20. The neighboring second bent part 28, namely, both ends of the second bent part of left and right sides are precisely engaged with the cut part 28a of the second bent part 28 of the upper and lower sides, so that the ends of the neighboring second bent parts are not overlapped with each other. The support bar 30 is spot- welded at the rear side of the cover 20. The support bar 30 comprises an intermediate connection part 32, a spot welding part 34 which is bent at a right angle at an end of the connection part 32, and a right angle support shoulder 36 which is extended from the other side of the connection part in the opposite direction with the spot welding part 34, so that the spot welding part 34 is spot- welded at the rear side of the cover 20. When the door 21 is closed, the support shoulder 36 supports the both rear sides of the door 21, so that the door 21 is prevented from being over pushed inwardly. Reference numeral 36a represents a cut part by which it is not overlapped with the second support shoulder 44 of the door support part 40. When the cover 20 has a small size, it has no problem. When the size of the same is big, it may be easily bent. So, in the present invention, so as to reinforce the cover 20 which may be easily bent due to its long size, a metallic reinforcing bar 50 is attached at a rear side of the cover 20. As shown in Figure 5, the reinforcing bar 50 is spot- welded at the outer inner wall of the cover 20,so that the larger size cover 20 can be reinforced. Here, the reinforcing bar 50 is provided in such a way that the left and right junction part 54 is provided at the left and right ends of the channel part 52 in the vertical direction. The left and right junction part 54 of the reinforcing bar 50 is spot- welded at the rear side of the cover 20. In case that at least two doors 21 are installed at the opening 26 of the cover 20, a metallicintermediate support bar 31 is welded at the intermediate portion of the opening 26 of the cover 20 in the vertical direction. As shown in Figure 2, the intermediate support bar 31 has a welding junction part 31b in the vertical direction at the left and right ends of the channel part 31a. The upper and lower ends of the welding junction part 31b are cut so that the in- termediate support bar 31 is not protruded beyond the front side of the cover 20, and the cut end is welded at the upper and lower door support part 40 provided at the opening 26 of the cover 20. The upper and lower ends of the intermediate support bar 31 contact with the inner side of the first bent part 24 of the surrounding part of the cover 20, so that the cut ends of the intermediate support bar 31 are welded at the second bent part 28, whereby the intermediate support bar 31 is installed at the intermediate portion of the opening 26 of the cover 20.

[28] As shown in Figure 3, the method for manufacturing the cover structure for a construction facility case according to the present invention will be described.

[29] In a step for forming a bent part, the surrounding part of the rectangular metallic plate 22 is bent, and the first bent part 24 is formed at four sides of the rectangular metallic plate 22. In consideration with the strength, the first bent part 24 is again bent in the direction opposite to the metallic plate 22, so that the second bent part 28 is further formed at the end of the first bent part 24. In a step for forming the cut part, the end of the upper and lower second bent part 28 is cut among the upper and lower and left and right second bent part 28. When viewing it from the rear side of the cover 20, it looks rectangular in its cut part 28a. Since the upper and lower ends of the left and right second bent part 28 are engaged with the cut part 28a, the both ends of the neighboring second bent part 28 are not overlapped with each other. In a step for forming an opening, one side of the metallic plate 22 is formed in a rectangular shape, so that a rectangular opening is formed at the metallic plate 22.

[30] A door support member is provided at an opening 26 of the metallic plate 22. The door support member is formed in the course that the door support part 40 or the support bar 30 is manufactured. As shown in Figure 5, a pair of parallel cut lines 26a are formed at the both ends of the upper and lower sides of the opening 26. As shown in Figure 3, an inner side of the cut line 26a is bent in an angle shape for thereby forming the door support part 40. As described above, the door support part 40 is formed of the first and second support shoulders 42 and 44. A pair of left and right support bars 30 are welded at the outer inner walls of the left and right sides of the opening 26. At this time, the support bar 30 is preferably welded at the rear side of the cover 20. The support bar 30 is provided with the right angle bent spot welding part 34 and the support shoulder 36 so that they are parallel at both ends of the connection part 32. The spot welding part 34 is welded at an inner wall of the outside of the opening 26 of the cover 20. After the support bar 30 is fixed, the lower both ends of the door 21 are rotatably engaged at the lower side of the support bar 30 with the hinge shaft 7 being disposed between the same. In a step for welding a reinforcing bar, the metallic reinforcing bar 50 is welded at the outer rear side of the opening 26 of the cover 20. So, the rear side of the cover 20 can be reinforced by means of the welded reinforcing bar 50.

Claims

[1] In a construction equipment case provided with a box 10 having a space open forward in its interior, and a cover 20 in which an opening and closing 21 is engaged at a front side of the box 10, a cover structure for a construction equipment case characterized in that said cover 20 is formed in such a way that an outer side of the metallic plate 22 is bent for thereby forming a first bent part 24, and an inner side of the metallic plate 22 is cut for thereby forming an opening 26 which is opened and closed, and a support bar 30 is fixed at an opening 26 of the cover 20 in the upper and lower directions or the left and right directions, and an inwardly bent door support part 40 is fixed at the upper and lower portions or the left and right portions of the opening 26 in the opposite directions, and both ends of one side of the opening and closing door 21 are rotatably engaged at the support bar 30 or the door support part 40 provided at the opening 26 in the upper and lower directions or the left and right directions with a hinge shaft 7 being disposed between the same, and a locker 21 is provide at the support bar 30 or the door support part 40 being opposite to the other end of the opening and closing door 21 among the support bar 30 and the door support part 40, and the rear side of the opening and closing door 21 is engaged by means of the support bar 30 or the door support part 40 in a state that the opening and closing door 21 is closed, and the opening and closing door 21 is locked by means of the locker 21.

[2] The structure of claim 1, wherein the second bent part 28 which is bent in the direction being opposite to the rear side of the metallic plate 22 is further provided at an end of the first bent part 24.

[3] The structure of claim 2, wherein a cut part 28a is formed at the end of the second bent part 28 of the left and right sides or the upper and lower sides in the second bent part 28 so that the ends of the neighboring second bent parts 28 are not overlapped with each other.

[4] The structure of claim 3, wherein a support bar 30 is spot- welded at the rear side of the metallic plate 22 of the inner side of the second bent part 28.

[5] The structure of claim 4, wherein said support bar 30 comprises an intermediate connection part 32, a spot welding part 34 which is vertically bent at an end of the connection part 32 and is spot- welded at the rear side of the cover 20, and a support shoulder 36 which is bent at the other end of the connection part 32 in the direction being opposite to the cover 20 and supports a surrounding side of the rear side of the door 21.

[6] The structure of claim 1, wherein a pair of cutting lines 26a are formed at both ends of the upper and lower sides of the opening 26 in parallel with respect to the outer side of the upper and lower directions, and an inner side of the cutting line 26a is cut in an angle shape for thereby forming a door support part40, and said door support part 40 comprises a first support shoulder 42 which is inwardly bent at the upper and lower sides of the opening 26 of the cover 20, and a second support shoulder 44 which is bent in a right angle direction and is opposite to the metallic plate 22 at an end of the first support shoulder 42.

[7] The structure of one among claims 1 through 6, wherein a metallic reinforcing bar 50 is welded at an outer rear side of the opening 26 of the cover 20.

[8] In a method for manufacturing a cover for a construction case which manufactures a cover 20 engaged at a front side of a box 10 having a space opened forward in its interior, a method for manufacturing a cover for a construction equipment, comprising: a first bent part forming step in which a surrounding part of a rectangular metallic plate 22 is bent, and a first bent part 24 is formed at a surrounding part of the metallic plate 22; an opening forming step in which one side of the metallic plate 22 is cut, and an opening 26 which is opened and closed by means of the door 21 is formed; a door support mans forming step in which a support bar 30 is fixed in the upper and lower directions or the left and right directions of the opening 26 of the cover 20 or a pair of door support parts 40 are formed at both ends of the upper and lower sides or the left and right sides of the opening 26 of the cover 20 and are opposite to each other an opening and closing door assembling step in which both sides of one side end of the opening and closing door 21 are rotatably engaged at the support bar 30 or the door support part 40 provided at the opening 26 of the cover 20 in the upper and lower directions of the right and left directions with a hinge shaft 7 being disposed between the same; and a locker assembling step in which a locker 21 is disposed at the support bar 30 or the door support part 40 which is opposite to the other end of the opening and closing door 21 among the support bar 30 and the door support part 40.

[9] The method of claim 8, further comprising a second bent part forming step in which a second bent part 28 is formed at an end of the first bent part 24 in a direction being opposite to the metallic plate 22.

[10] The method of claim 9, further comprising a cut part forming step in which a cut part 28a is formed at an end of the left and right sides or upper and lower sides in the second bent part 28 so that the ends of the neighboring second bent parts 28 are not overlapped with each other.

[11] The method of claim 10, wherein said support bar 30 comprises an intermediate connection part 32, a spot welding part 34 which is bent at an end of the connection part 32 in a perpendicular direction, and a support shoulder 36 which is bent in a direction being opposite to the cover 20 and supports a rear side of the door 21, and a spot welding part 34 of the support bar 30 is spot- welded at the rear side of the metallic plate 22 of the inner side of the second bent part 28.

[12] The method of claim 8, wherein a pair of cutting lines 26a are formed at both ends of the upper and lower sides or the left and right sides of the opening 26, and a door support part 40 is formed by bending an inner side of the cutting lines 26a, and said door support part 40 comprises a first support shoulder 42 which is perpendicularly bent at an inner side of the opening 26 of the cover 20, and a second support shoulder 44 which is perpendicularly bent at the end of the first support shoulder 42 and is opposite to a rear side of the metallic plate 22.

[13] The method of one among claims 8 through 12, further comprising a step for welding a metallic reinforcing bar 50 at an outer rear side of the opening 26 of the cover 20.