JP2006344562A - Plate with cover - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a plate 13 with a cover of good assembling property, simplifying a die structure by forming a component structure causing no undercut. <P>SOLUTION: A bearing body 23 for bearing a cover 22 in an openable/closable manner to a plate 21 is independently provided. The bearing body 23 has a bearing groove 46 formed in approximately U-shape and engaged with a hinge shaft part 40 of the cover 22 from a direction to intersect the axial direction. The hinge shaft part 40 of the cover 22 is engaged with the bearing groove 46 of the bearing body 23 to mount the bearing body 23 to the plate 21. The hinge shaft part 40 of the cover 22 is held between the bearing body 23 and the plate 21 and turnably supported. The cover 22 and the bearing body 23 are assembled to the plate 21 from one direction. The plate 21, the cover 22 and the bearing body 23 are formed in the component structure causing no undercut to simplify the die structure for forming each component. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a plate with a cover used in a wiring device.

  Conventionally, for example, in a ventilation system in a house, etc., which is always operated and ventilates indoor air, a wiring apparatus having a switch for turning on and off the ventilation system has been used. In order to prevent the system from being stopped, a plate with a cover is used as a plate of the wiring device (see, for example, Patent Document 1).

  The plate with a cover includes a plate and a cover attached to the front surface of the plate so as to be opened and closed. A plurality of bearing portions protruding from the front surface of the plate are integrally formed on the plate, and hinge holes are integrally formed on the side surfaces of the bearing portions. Further, the cover is formed with a plurality of groove portions that engage with the respective bearing portions of the plate, and a hinge shaft portion that is rotatably engaged with the hinge hole portion of the bearing portion is integrally formed on the side surface of these groove portions. .

The hinge hole portion of the plate bearing portion is formed in a hinge piece portion having flexibility in the axial direction, and the hinge shaft portion of the cover is moved in the radial direction with respect to the hinge hole portion of the plate bearing portion. The engagement at the time of combining is improved.
JP 2004-348985 A (page 4, FIG. 1, FIG. 5 (d), FIG. 6 (b))

  However, in the conventional plate with a cover, the bearing portion having the hinge hole portion is integrally formed on the plate. However, since the hinge hole portion of the bearing portion is undercut, the slide core is formed to form the hinge hole portion. There is a problem that the mold structure becomes complicated.

  Further, when the cover is assembled to the plate, the hinge shaft portion of the cover is moved from the radial direction to the hinge hole portion of the bearing portion of the plate and engaged so that the hinge shaft portion can be easily engaged with the hinge hole portion. Considering the dimensions, it is easy to assemble, but the cover may be easily removed.

  The present invention has been made in view of the above points, and an object of the present invention is to provide a cover-attached plate that can be easily assembled and has a component structure that does not cause undercutting, and can simplify the mold structure.

  The plate with a cover according to claim 1; a plate; a cover having a hinge shaft portion, which is attached to the plate so that the hinge shaft portion can be opened and closed; and intersects the hinge shaft portion of the cover with respect to the axial direction thereof. A bearing body that has a bearing groove that is pivotably engaged from the direction in which the hinge shaft is engaged, and a hinge shaft that is engaged with the bearing groove is rotatably sandwiched between the plate and the bearing body. It is what.

  The plate with a cover is used in a wiring device, and is used in combination with a wiring device installed on a wall surface or an adapter as an attachment. Further, the plate can be attached to the adapter of the wiring device, and the wiring device of the wiring device is disposed inside the plate. Further, the cover may be transparent, translucent, or non-transparent, and a part of the cover may be opened or the whole may be closed. Further, the bearing groove of the bearing body is opened in the direction of the plate, and can be engaged with the hinge shaft portion of the cover from a direction intersecting with the axial direction.

  The plate with a cover according to claim 2 is a plate with a cover according to claim 1, wherein the pair of ribs that rotatably support both axial ends of the hinge shaft portion of the cover between the plate and the bearing body protrude from the plate. A mounting hole for mounting the bearing body is provided between the pair of ribs, and the bearing body is provided with a locking portion having a claw portion that is inserted inside the pair of ribs of the plate and locks to the mounting hole. It is what has been.

  The cover-equipped plate according to claim 3 is the cover-equipped plate according to claim 2, wherein the bearing body is formed in a substantially U shape in which a pair of tip portions are opposed to each other via a bearing groove, and the pair of tip portions are opposed to each other. An engaging portion with a claw facing the outer surface is provided, and a notch is formed on both ends in the axial direction on the inner surface of the pair of tip portions facing each other.

  The substantially U-shape of the bearing body includes a U-shape that is similar to the U-shape and the like, but in order to allow the cover to rotate, the connecting portion between the pair of tip portions is preferably a curved surface. That is, a U-shape is preferable.

  The cover-attached plate according to claim 4 is the plate with cover according to claim 3, comprising a stopper body inserted between a pair of locking portions of the bearing body locked in the mounting hole of the plate. is there.

  According to the cover-equipped plate of the first aspect, the bearing body having the bearing groove that engages with the hinge shaft portion of the cover from the direction intersecting the axial direction is separated from the plate, and the cover body is provided by the bearing body. Since the hinge shaft is sandwiched between the plate and pivotably mounted, the cover and bearing body can be easily assembled from one direction with respect to the plate, and the plate, cover and bearing body are undercut. A part structure that does not occur can be obtained, and a mold structure for molding each part can be simplified.

  According to the plate with a cover according to claim 2, in addition to the effect of the plate with a cover according to claim 1, the hinge shaft portion of the cover is rotated between the bearing body by a pair of ribs protruding from the plate. It can be supported and positioned, and a mounting hole is provided between the pair of ribs, and the locking part of the bearing body is inserted into the mounting hole and locked, so that the bearing body can be placed in a limited space of the plate. A structure for attachment can be provided.

  According to the plate with a cover according to claim 3, in addition to the effect of the plate with a cover according to claim 2, the axially opposite ends of the pair of front ends of the bearing body formed in a substantially U shape are opposed to each other in the axial direction. The notch portions formed in the spring portion impart spring properties to the pair of tip portions, and the latch portions provided on the pair of tip portions are easily locked in the mounting holes of the plate while narrowing the distance between the pair of tip portions. As a result, assembly workability can be improved. In addition, the notch portion can prevent the pair of tip portions from interfering with the rib when the distance between the pair of tip portions is narrowed.

  According to the plate with a cover according to claim 4, in addition to the effect of the plate with a cover according to claim 3, the stopper body is inserted between the pair of locking portions of the bearing body locked in the mounting hole of the plate. Thereby, it can prevent reliably that a latching | locking part remove | deviates from an attachment hole.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  FIG. 1 is a perspective view of an exploded state of a plate with a cover. FIG. 2 is a longitudinal sectional view of the assembled plate with a cover. FIG. 3 is a cross-sectional view of the assembled plate with a cover. FIG. 4 shows a bearing body of a plate with a cover, (a) is a plan view, (b) is a side view, and (c) is a rear view.

  In FIG. 1, reference numeral 11 denotes a wiring device. The wiring device 11 includes a wiring device (not shown) such as a switch used in a ventilation system, a support (not shown) that holds the wiring device, and an adapter 12 that is an attachment body attached to the support. A plate 13 with a cover attached to the adapter 12 is provided. The support is attached to a wiring box (not shown) installed in the wall, and the adapter 12 is arranged on the surface of the wall surface and attached to the support.

  The adapter 12 is formed in a vertically long rectangular frame shape, an opening 16 is formed inside, an attachment hole 17 to be screwed to a support is formed on the upper and lower edges, and a cover plate 13 is formed on both left and right edges. A plurality of locking holes 18 for locking are formed.

  As shown in FIGS. 1 to 3, the cover-equipped plate 13 includes a plate 21 that is detachably attached to the adapter 12, a cover 22 that is detachably attached to the surface (front surface) of the plate 21, and this cover 22 A pair of bearing bodies 23 that rotatably support the plate 21, a spring body 24 that holds the opened cover 22 in its open position, and a pair of stoppers that prevent the bearing bodies 23 that are locked to the plate 21 from coming off. Body 25 is provided.

  The plate 21 is a mold that is integrally formed of an insulating synthetic resin in the shape of a vertically long rectangular frame and that opens in the front and back direction of the plate 21.

  A frame 27 is formed in the plate 21, and an opening 28 is formed inside the frame 27. A pair of bearing body mounting portions 29 are formed on the upper edge portion of the surface of the frame portion 27 so as to be spaced apart in the left-right width direction, and the respective bearing bodies 23 are attached. The spring body 24 is interposed between the pair of bearing body mounting portions 29. A concave spring body attaching portion 30 to be attached is formed. A pair of locking holes 31 are formed in the lower edge portion of the surface of the frame portion 27 so as to be spaced apart in the left-right width direction. At the left and right side edges of the back surface (rear surface) of the frame portion 27, when the plate 21 is attached to the adapter 12, it is inserted into the respective locking holes 18 of the adapter 12 and removably locked. A pawl 32 is projected.

  Each bearing body mounting portion 29 is spaced apart in the left-right width direction and a pair of ribs 33 project from the surface of the plate 21, and a mounting hole 34 is formed between the pair of ribs 33. Each rib 33 is formed in a taper shape so that the tip side protruding from the surface of the plate 21 is tapered.

  The mold part for molding the bearing body attachment part 29 has a component structure in which undercut does not occur.

  The cover 22 is a mold that is integrally formed of a synthetic resin having a transparent, translucent, or non-transparent insulating property and that opens in the front and back direction of the cover 22.

  An opening 37 is formed on the lower side inside the cover 22. Note that the cover 22 having the opening 37 is used when a part of the wiring apparatus is exposed even when the cover 22 is closed. A cover 22 that is not provided and is entirely closed is used.

  A pair of groove portions 38 spaced apart in the left-right width direction corresponding to the positions of the respective bearing body mounting portions 29 of the plate 21 are formed in the upper portion of the cover 22, and the left and right wall portions facing each other in each of the groove portions 38. Hinge shaft portions 40 are formed between 39 so that the axial direction is in the left-right width direction. The width of each groove portion 38 in the left-right width direction is formed to be slightly wider than the width of the pair of ribs 33 of each bearing body mounting portion 29.

  The mold part for forming the groove part 38 and the hinge shaft part 40 has a component structure that does not cause an undercut.

  The upper end of the cover 22 is formed in a curved shape so as to be opened and closed by the hinge shaft portion 40, and a contact portion 41 is formed between the groove portions 38 so as to contact the spring body 24 and hold the cover 22 in the open position. Has been.

  A locking claw 42 that protrudes into the locking hole 31 of the plate 21 and is detachably locked when the cover 22 is closed protrudes from the bottom of the back surface of the cover 22.

  Further, as shown in FIGS. 1 to 4, each bearing body 23 is integrally formed of an insulating synthetic resin, and is integrally formed with a mold that opens in the left-right width direction of the bearing body 23. The part structure does not cause undercut.

  Each bearing body 23 is substantially U-shaped having a pair of distal end portions 44 and a proximal end portion 45 connecting the proximal end sides of the pair of distal end portions 44, and can be rotatably disposed in the groove portion 38 of the cover 22. Dimensional shape to be formed. A bearing groove 46 is opened between the pair of front end portions 44 in the front end direction and the left-right width direction, and engages with the hinge shaft portion 40 of the cover 22 so as to be rotatable from the front direction intersecting the axial direction. Is formed. The outer surface of the base end portion 45 is formed in a curved surface to allow the cover 22 to rotate.

  A locking portion 47 that is inserted into the mounting hole 34 of the plate 21 protrudes from the central region in the left-right width direction of the pair of tip portions 44. On the outer surface opposite to the front end side of the locking portion 47, the claw that locks to the rear edge of the mounting hole 34 of the plate 21 with the front end surfaces of the pair of front end portions 44 in contact with the surface of the plate 21 A part 48 is projected. The claw portion 48 is formed such that the rear side, which is the front end side, is an inclined surface for facilitating insertion into the mounting hole 34, and the front side, which is the opposite side, is a vertical surface that engages with the rear edge of the mounting hole 34. Is formed.

  Cutouts 49 are formed on opposite sides of the pair of tip portions 44 on both sides in the axial direction so as to be located on both sides of the locking portion 47. The notch 49 is formed in a dimension that does not interfere with the rib 33.

  The spring body 24 is made of an insulating synthetic resin and is formed in a leaf spring shape with a central portion protruding toward the cover, which is forward of both ends, and is fitted to the spring body mounting portion 30 of the plate 21. It is arranged, and the central part can come into contact with the contact part 41 of the cover 22.

  Each stopper body 25 is made of an insulating synthetic resin and is formed in a substantially quadrangular pyramid shape that can be press-fitted and fixed between a pair of locking portions 47 of the bearing body 23 attached to the plate 21.

  Next, the operation of the cover-equipped plate 13 will be described.

  In order to assemble the plate 13 with the cover, the spring body 24 is fitted and disposed in the spring body mounting portion 30 on the front surface of the plate 21, and the cover 22 is attached to the front surface of the plate 21. By attaching this cover 22 to the front surface of the plate 21, each pair of ribs 33 of the plate 21 enters into each groove portion 38 of the cover 22, and positions the cover 22 and the plate 21 in the left-right width direction. . Further, the front end surfaces of each pair of ribs 33 are located on the rear surface side of each hinge shaft portion 40.

  Subsequently, each bearing body 23 is inserted into each groove portion 38 of the cover 22, and the bearing groove 46 of each bearing body 23 is engaged with each hinge shaft portion 40 of the cover 22 from the front direction intersecting the axial direction. Then, a pair of locking portions 47 protruding from the pair of tip portions 44 of each bearing body 23 are inserted into the mounting holes 34 of the plate 21 and locked.

  At this time, by gripping the pair of tip portions 44 of the bearing body 23 and operating the pair of tip portions 44 so that the distance between the pair of tip portions 44 is reduced, the claw portions 48 projecting to the opposite outer surface sides of the pair of locking portions 47 are formed. The edge of the mounting hole 34 can be easily moved over from the front surface side to the back surface side, and the pair of locking portions 47 can be easily inserted into the mounting hole 34. Moreover, the pair of tip portions 44 can be provided with spring properties by the notch portions 49 formed on the opposite inner surface sides of the pair of tip portions 44 of the bearing body 23 on both axial ends, and the distance between the pair of tip portions 44 can be easily achieved. The pair of locking portions 47 can be easily inserted into the mounting hole 34. Further, the cutout portions 49 can prevent the pair of tip portions 44 from interfering with the ribs 33 when the distance between the pair of tip portions 44 is narrowed.

  With the tip surfaces of the pair of tip portions 44 of the bearing body 23 in contact with the surface of the plate 21, the claw portions 48 of the pair of locking portions 47 are locked to the back surface edge portions of the mounting holes 34 of the plate 21, The bearing body 23 is retained on the plate 21 to prevent it from coming off.

  The hinge shaft portion 40 engaged in the bearing groove 46 of the bearing body 23 is sandwiched between the bearing body 23 and the rib 33 so as to be rotatably supported, and the cover 22 is opened and closed with the hinge shaft portion 40 as the center. Make it possible.

  Thus, the bearing body 23 having the bearing groove 46 that engages with the hinge shaft portion 40 of the cover 22 from the direction intersecting the axial direction is separated from the plate 21, and the hinge of the cover 22 is formed by the bearing body 23. Since the shaft portion 40 is sandwiched between the plate 21 and attached so as to be rotatable, the cover 22 and the bearing body 23 can be easily assembled to the plate 21 from one direction. Further, the plate 21, the cover 22, the bearing body 23, and the like can be formed into a component structure that does not cause undercut, and the mold structure for molding each component can be simplified.

  In addition, the pair of ribs 33 projecting from the plate 21 can support and position the hinge shaft portion 40 of the cover 22 so as to be rotatable with respect to the bearing body 23, and the mounting hole 34 is formed between the pair of ribs 33. A structure for mounting the bearing body 23 in the limited space of the upper edge of the frame portion 27 in the plate 21 in order to insert and lock the locking portion 47 of the bearing body 23 into the mounting hole 34 Can be provided. The mounting hole 34 is provided between the pair of ribs 33 because the spring body 24 is disposed between the pair of bearing body mounting portions 29 that are spaced apart in the left-right width direction of the plate 21. The structure for attaching the bearing body 23 can be provided in the limited space of the upper edge portion of the frame portion 27 in the plate 21.

  Further, by pressing and fixing each stopper body 25 between a pair of locking portions 47 of each bearing body 23 locked to each mounting hole 34 of the plate 21 from the back side of the plate 21, a pair of each bearing body 23 is fixed. It is possible to reliably prevent the locking portions 47 from being detached from the mounting holes 34. The stopper body 25 can be used as necessary.

  Further, since the spring body 24 is formed separately, the shape and spring property of the spring body 24 can be arbitrarily set, and the holding force at the open position of the cover 22 can be easily set. The spring body 24 may be formed integrally with the plate 21.

It is a perspective view of the decomposition | disassembly state of the plate with a cover which shows one embodiment of this invention. It is a longitudinal cross-sectional view of the assembly state of a plate with a cover same as the above. It is a cross-sectional view of the assembly state of a plate with a cover same as the above. The bearing body of a plate with a cover same as the above is shown, (a) is a plan view, (b) is a side view, and (c) is a rear view.

Explanation of symbols

13 Plate with cover
21 plates
22 Cover
23 Bearing body
25 Stopper body
33 Ribs
34 Mounting hole
40 Hinge shaft
44 Tip
46 Bearing groove
47 Locking part
48 Nail
49 Notch

Claims (4)

A plate;
A cover having a hinge shaft and attached to the plate so that the hinge shaft can be opened and closed;
The cover has a bearing groove that engages with the hinge shaft portion so as to be rotatable from a direction intersecting the axial direction, and the hinge shaft portion engaged with the bearing groove is rotatably sandwiched between the plate and the plate. Bearing body attached to the plate with;
A plate with a cover, comprising: The plate is provided with a pair of ribs that rotatably support both axial ends of the hinge shaft portion of the cover between the bearing body and an attachment hole for attaching the bearing body between the pair of ribs.
The plate with a cover according to claim 1, wherein the bearing body is provided with a locking portion having a claw portion that is inserted inside the pair of ribs of the plate and locks into the mounting hole. The bearing body is formed in a substantially U shape in which a pair of tip portions are opposed to each other through a bearing groove, and the pair of tip portions are provided with a locking portion facing a claw portion on the opposite outer surface side, The plate with a cover according to claim 2, wherein notches are formed on both ends in the axial direction on the inner surfaces of the pair of tip portions facing each other. The plate with a cover according to claim 3, further comprising a stopper body inserted between a pair of locking portions of the bearing body locked in the mounting hole of the plate.

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