JP2009287245A - Locking structure of locking device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a locking structure of a locking device, which overcomes the problems of the separation of coating, occurring in a weld zone of a locking portion, and the formation of rust, caused by the separation of the coating, by eliminating a locking fitting welding step from a cabinet manufacturing process. <P>SOLUTION: A cabinet is equipped with a draining portion 5 which comprises a rising side 5a erected in a direction perpendicular to a cabinet door 2 with respect to a peripheral edge of the opening 1a of a waterproof and dustproof cabinet body 1, and a folded side 5b formed by folding back an end of the rising side 5a in a direction parallel to the cabinet door. A locking portion 6, which locks the locking portion 3 of the locking device 4 provided inside the door, is formed by elongating a part of the folded side 5b to the outside. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a locking structure for a locking device used in a cabinet door that houses electrical equipment.

  In a cabinet for storing a conventional electric device, the cabinet is provided by a locking device provided on the cabinet door or a locking portion provided at an opening of the cabinet body for locking the locking device of the locking device. There was a problem that the opening of the main body was narrowed and the equipment storage space of the cabinet main body was compressed. On the other hand, the applicant of the present invention provides a locking portion in the draining portion provided around the opening of the cabinet body, and locks the locking portion of the locking device provided on the door to the locking portion. A technique for solving the problem is disclosed (Patent Document 1).

As shown in FIGS. 13 and 14, the conventional locking portion is formed by welding a locking metal fitting 8 bent in a U shape to a draining portion 5 provided around the opening of the cabinet body 1. There is a problem that the assembly workability is inferior due to the large number of parts. Further, since a film is formed at the time of welding, there is a problem in that the adhesion of the coating performed after welding is deteriorated at the portion, the coating is easily peeled off, and rust is generated from the portion where the coating is peeled off. Further, there has been a demand for prevention of metal rubbing noise that occurs when the locking portion of the locking device is locked to the locking portion, and prevention of coating peeling due to rubbing between metals.
JP 2003-328604 A

  In order to solve the above-mentioned problems, the present invention eliminates the locking bracket welding process from the cabinet manufacturing process, and eliminates the problem of rust caused by paint peeling and paint peeling occurring at the welded portion of the locking portion. Is to provide a structure.

The locking structure of the locking device of the present invention, which has been made to solve the above-mentioned problems, includes a rising edge that is raised in a direction perpendicular to the cabinet door from the peripheral edge of the opening of the cabinet body, and an end of the rising edge. The cabinet is provided with a draining portion that is folded back in a direction parallel to the cabinet door, and a part of the folded side is extended to the outside, and the locking portion of the locking device provided inside the door is engaged. A locking portion for stopping is formed.
In addition, it is preferable that the said locking device is a clamp lock or a rod stick | rod as described in Claim 2.

  According to a third aspect of the present invention, in the locking structure of the locking device according to the first or second aspect, the locking portion is covered with a resin member, and the locking portion can be locked with the resin member. A protrusion is formed in the resin member, and a protrusion that is locked to the previous hole is formed.

  According to a fourth aspect of the present invention, in the locking structure of the locking device according to the third aspect, the resin member is formed in a bag shape, and the resin member is horizontally moved from the extending direction of the locking portion to the locking portion. It is characterized by being coated.

  The invention according to claim 5 is characterized in that in the locking structure of the locking device according to claim 5, a groove is formed on the surface of the resin member located on the door side.

  In the locking structure of the locking device according to the present invention, a part of the folded side constituting the draining portion provided around the opening of the cabinet body is extended so that the draining portion and the locking portion are integrally formed. As a result, the welding process becomes unnecessary, and furthermore, it is possible to solve the problem of paint peeling occurring at the welded portion of the locking portion and rust due to paint peeling.

  According to the invention described in claim 3, in the locking structure of the locking device according to claim 1 or 2, the locking portion of the locking device is locked by covering the locking portion with the resin member. It is possible to prevent metal rubbing noise that is generated when being locked to the portion. In addition, a hole that allows the resin member to be locked is formed in the locking portion, and a protrusion that is locked to the hole is formed inside the resin member, so that the resin member that covers the locking portion is formed. Can be locked in this position.

  According to the invention of claim 4, the resin member is formed in a bag shape, and the resin member is horizontal from the extending direction of the locking portion, that is, perpendicular to the sliding direction of the locking portion of the locking device. By covering the resin member, it is possible to prevent the problem that the resin member is detached by being dragged by the sliding of the lock portion.

  In addition, since the hard resin is poor in elastic deformation, there is a defect that the workability as a covering member for the locking portion is lacking. However, as described in claim 5, the hard resin is easily bent due to the formation of the groove in the hard resin member. Therefore, it can be employed as a covering member for the locking portion. Further, since the locking portion does not get caught in the groove when sliding, the resin member does not come off from the locking portion.

  FIG. 1 shows an overall view of a waterproof and dustproof cabinet which is an embodiment of a cabinet provided with a “locking device locking structure” according to the present invention. FIG. 2 shows an explanatory view of the locking structure of the locking device of the present invention in the unlocked state, and FIG. 3 shows a side view of FIG. 2 and 3, the door is omitted for convenience of explanation.

  Reference numeral 1 denotes a waterproof and dustproof cabinet body, and reference numeral 1a denotes an opening of the waterproof and dustproof cabinet body. At the peripheral edge of the opening 1a, the cabinet door 2 in the closed state and the rising side 5a raised in the vertical direction, and the folded side 5b folded back in the direction parallel to the cabinet door 2 in the closed state are closed. A draining portion 5 is formed around and a locking portion 6 is formed in which a part of the folded side 5b extends outward. Reference numeral 2 denotes a cabinet door that opens and closes the opening 1 a of the waterproof and dustproof cabinet body 1, and a locking device 4 having a locking portion 3 is provided inside the door 2.

  The locking device 4 operates the handle 4a to move the rod rod 4b up and down to lock and unlock. That is, as shown in FIGS. 2 and 3, in the unlocked state, the locking part 3 moves from the bottom of the locking part 6 to the handle 4a side to release the locked state, and as shown in FIG. Then, the locking part 3 is locked by entering under the locking part 6. 1 to 3, the locking structure 4 is a rod rod, and the locking structure in which the locking portion 3 formed at the tip of the rod rod enters and locks under the locking portion 6 is described. Although the figure is shown, the present invention is not limited to this. For example, the locking device 4 as shown in FIG. 5 is a clamp lock that does not have the rod bar 4b, and is engaged by the clamp piece 4c. It is good also as a structure latched by the stop part 6. FIG. In this case, the latching part 6 shall be provided in the draining part 5 corresponding to the attachment position of the door of the locking device 4.

  In order to explain the locking portion 6 in detail, FIG. 6 shows an overall view of a waterproof and dustproof cabinet body having the locking portion constituting the present invention, and FIG. 7 shows an enlarged view of the locking portion of FIG. .

  As shown in FIG.6 and FIG.7, the latching | locking part 6 of this invention extends a part of folding | turning side 5b of the draining part 5, and is integrally formed with the folding | turning side 5b. The locking portion 6 is formed so as to extend from the folded side 5b with an angle 6a that is gentler than the vertical, and then has an angle of 90 degrees with respect to the folded side 5b. By adopting such a structure, it is possible to prevent deformation of the locking portion 6 due to stress concentration caused by an unexpected external force when opening and closing the door.

  As shown in FIG. 8, in the present invention, the locking portion 6 can be covered with a resin member 7 for the purpose of preventing the occurrence of metal rubbing noise generated when the locking portion 3 and the locking portion 6 are locked. preferable. For this reason, as shown in FIGS. 6 and 7, two locking holes 6 b are formed in the locking portion 6 so that the resin member 7 can be locked. In addition, the hole part 6b should just be a structure which can latch the resin member 7, and the square-shaped hole part 6b is not limited to two pieces.

  9 to 12 are diagrams for explaining the resin member 7 in detail. As shown in FIGS. 9 and 10, the resin member 7 is formed in a bag shape that can cover the locking portion 6. As shown in FIGS. 11 and 12, a protrusion 7 b is formed in the resin member 7 so as to be engaged with the engagement portion hole 6 b. The resin member 7 has a structure that covers the resin member 7 from a direction parallel to the extending direction of the locking portion 6, that is, a direction perpendicular to the sliding direction of the locking portion 3 of the locking device 4. Yes. With these structures, the protrusion 7 b inside the resin member 7 is locked in the hole 6 b of the locking portion 6, and the resin member 7 can be locked at this position. The problem that 7 is removed is also prevented. Moreover, as shown in FIG. 11, the end 7e of the resin member 7 is inclined so that the locking portion 3 can be easily guided when the locking device 4 is a rod rod. In addition, it is good also as a protrusion etc. which the hole 6b of the latching | locking part 6 cut and raised, and respond | corresponds with the recessed part inside the resin member 7. FIG.

  The resin member 7 is preferably made of a hard resin such as polycarbonate or polybutylene terephthalate. By using a hard resin, it becomes possible to improve weather resistance and flame retardancy. Although the hard resin has a drawback that it is poor in elastic deformation, in the present invention, as shown in FIG. 9, the through hole 7d is formed on the opposite side of the insertion port 7c when the resin member 7 is covered with the engaging portion 6. Further, by providing two groove portions 7a along the insertion direction side of the insertion port 7c, the hard resin is easily bent. In addition, this groove part 7a shall be formed in the surface located in the door side, when the resin member 7 is coat | covered by the latching | locking part. Thereby, when the locking part 3 slides, it does not get caught in the groove part 7a, so that the resin member 7 does not come off from the locking part 6.

  In the waterproof and dustproof cabinet for storing electrical equipment, the inner side of the door 2 has a cabinet opening 1a inside the waterproof and dustproof gasket 9 at a position corresponding to the folded side 5b of the draining portion 5 of the cabinet body 1 as shown in FIG. In general, a waterproof and dustproof / electromagnetic shield means is provided with a conductive cloth 10 covered on the surface. However, in order to further enhance the electromagnetic shield effect, the electromagnetic shield gasket 11 and the waterproof and dustproof gasket 9 are provided as shown in FIG. The waterproof and dustproof / electromagnetic shield means is composed of the electromagnetic shield gasket 11 made of a material harder than the waterproof and dustproof gasket 9, and the electromagnetic shield gasket 11 is thicker than the waterproof and dustproof gasket 9. It is preferable to do. The electromagnetic shielding gasket 11 has the property of exhibiting electromagnetic shielding performance as the tightening load increases, and the waterproof and dustproof gasket 9 provides high sealing performance with a small tightening load. A step structure is preferable. In addition, as shown in FIG. 16, the electromagnetic shielding gasket 11 is arrange | positioned at the cabinet opening part 1a inside the door 2, and a waterproof dustproof gasket is arrange | positioned at the cabinet opening part 1a outer side.

1 is an overall view of a waterproof and dustproof cabinet having a locking structure for a locking device of the present invention. It is explanatory drawing of the latching structure of the locking device of this invention in an unlocked state. FIG. 3 is a side view of FIG. 2. It is explanatory drawing of the latching structure of the locking device of this invention in a locked state. It is a side view which shows the example of the locking device which does not have a rod rod. 1 is an overall view of a waterproof and dustproof cabinet body having a locking portion constituting the present invention. FIG. 5 is an enlarged view of a locking part in FIG. 4. It is the state figure which coat | covered the resin member on the latching | locking part of FIG. It is a general view of a resin member. It is a general view of a resin member. It is a front view of a resin member. It is AA sectional drawing of FIG. It is a general view of the waterproof and dustproof cabinet main body which has the conventional latching | locking part. FIG. 12 is an enlarged view of the locking portion of FIG. 11. It is explanatory drawing of the conventional waterproofing dustproof and electromagnetic shielding structure. It is explanatory drawing of the waterproof dust proof and electromagnetic shielding structure preferable in this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Waterproofing dustproof cabinet main body 1a Opening part 2 Door 3 Locking part 4 Locking device 5 Draining part 5a Upright side 5b Folding side 6 Locking part 6a Rising angle of the locking part 7 Resin member 8 Locking folded in U shape Metal fitting 9 Waterproof dustproof gasket 10 Conductive cloth 11 Electromagnetic shield gasket

Claims (5)

  A cabinet equipped with a draining section that consists of a rising edge that rises in a direction perpendicular to the cabinet door from the peripheral edge of the opening of the cabinet body, and a folded edge that is folded back in the direction parallel to the cabinet door. A locking device for a locking device of a cabinet, characterized in that a part of the folded side extends outward and a locking portion for locking the locking device of the locking device provided inside the door is formed. Construction.   2. The locking structure of the locking device according to claim 1, wherein the locking device is a clamp lock or a rod bar.   The locking portion is covered with a resin member, a hole portion that can lock the resin member is formed in the locking portion, and a protrusion that is locked in the hole portion is formed inside the resin member. The locking structure for a locking device according to claim 1 or 2, characterized in that:   The locking structure for a locking device according to claim 3, wherein the resin member is formed in a bag shape, and the resin member is horizontally covered from the extending direction of the locking portion.   6. The locking structure for a locking device according to claim 5, wherein a groove is formed on a surface of the resin member located on the door side.

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