JP4777318B2 - Electrical device mounting structure, electrical device mounting frame, and electrical device mounting method - Google Patents

Description

  The present invention relates to an electric device mounting structure for mounting an electric device on a panel, and more particularly to an improvement of a mounting frame.

  For example, various proposals have been made regarding the mounting structure of electrical devices for mounting various control devices such as timers, counters, and hour meters on a panel. As a conventional technique, an engaging claw is provided on the inner surface of the opposite side of the mounting frame formed in a square frame shape, a lever is projected on the outer surface, and an elastic cantilever arm is integrated with this lever. There is what is formed automatically (see, for example, Patent Document 1). Here, the mounting frame is fitted until the tip of the arm contacts the inner surface of the panel, and the engagement claw is engaged with the engagement recess (ratchet) of the electric device. Thereafter, the screw is tightened to press the tip of the screw against the inner surface of the panel, and the engagement claw and the engagement recess (ratchet) are pressed against each other to lock the engagement state, thereby preventing rattling. In this patent document 1, with respect to the side having the engaging claw, a spacer protrusion is provided on the inner surface of the other opposite side, and the spacer protrusion is deformed so as to bulge outward, whereby the engaging claw A technique for applying an inwardly moving force to a side provided with a lip is disclosed.

  Moreover, although the point which provides the latching piece (engagement nail | claw) for latching to the to-be-latched part (engagement recessed part) of the side surface of an electric equipment in a latch member (attachment frame) is the same, attachment member ( A U-shaped wire spring) is attached to the locking member (mounting frame), and the tip of the mounting member (U-shaped wire spring) is brought into pressure contact with the panel, so that the space between the panel and the locking member (mounting frame) There is a technique for forming an elastic compression state (see, for example, Patent Document 2).

JP-A-6-13769 JP 2001-15953 A

  Here, for example, in the related art described in Patent Document 1, in order to obtain engagement between the engagement claw and the engagement recess (ratchet), the bending of the cantilevered arm provided on the side surface of the mounting frame is performed. The resilience by is used. That is, when the panel is attached, the free end side of the arm is pressed against the panel to be deformed, and the engaging claw and the engaging recess (ratchet) are engaged with each other by using the restoring force. Then, the engagement force is increased by tightening the screw and pushing the panel with the tip of the screw. However, since the restoring force of the arm provided on the side surface of the mounting frame is small, rattling occurs unless the reinforcing screws are tightened evenly in a well-balanced manner, and if the screws are tightened too much, they will come off during the tightening operation. There was a bug. Further, in the related art described in Patent Document 1, in addition to the very small restoring force of the arm, the force applied to the mounting frame is an inclined force. Therefore, it is necessary to reinforce by screw tightening, and even if the user desires simple attachment that obtains a predetermined holding force by omitting screw tightening, it has been difficult to realize in terms of structure.

  Furthermore, in the related art described in Patent Document 2, for example, the only part that contacts the panel on the locking member (mounting frame) side is the tip of the mounting member (U-shaped wire spring). For this reason, the contact portion between the locking member (mounting frame) side and the panel is limited, and stable locking cannot be realized.

The main object of the present invention is to easily and stably realize the mounting structure of an electrical device for mounting the electrical device to a panel.
Another object is to obtain a sufficient holding force even if the reinforcement by screw tightening is omitted.

In order to achieve such an object, the present invention provides an electrical device having a contact portion that is inserted into a mounting hole formed in a panel from the front side of the panel and abuts against the front side of the panel. A mounting structure for an electric device that is attached to a panel using a substantially rectangular frame-shaped mounting frame that is inserted into the main body from the side and that is engaged with the main body. The mounting frame is provided on two opposite sides of the substantially rectangular frame shape. The engaging claw that is provided on the inner surface of the other two sides facing each other in a substantially square frame shape and that engages with an engaging recess formed on the outer surface of the main body of the electric device. And an urging means for urging the abutment frame portion toward the panel side by engaging the engagement claw with the engagement recess, and the urging means is on the two sides on which the abutment frame portion is formed. Provided with a support portion for supporting the engaging claw, and elastically deforming the support portion to Characterized in that it urges Le side.

Here, the mounting frame is formed such that the facing distance between the contact frame portions provided on the two opposing sides is smaller than the outer dimension of the insertion position of the main body of the electric device, and the mounting frame is inserted into the main body of the electric device. Accordingly, if the support portion supporting the engagement claw is elastically deformed and the contact frame portion is displaced in a direction away from each other, the engagement performance can be further improved by utilizing the facing distance of the contact frame portion. It is preferable in that it can be increased.

The mounting frame further includes a displacement frame portion having an engagement claw on the inner surface and supported by the support portion, and the support portion is arranged so that the displacement frame portion and the panel when the abutment frame portion abuts the panel. If the displacement frame portion is supported so that a step is formed between the contact frame portion and the contact frame portion, even after the contact frame portion is in contact with the panel, the displacement frame portion is moved and engaged. It is excellent in that the nail can be moved to the panel side.

Further, the displacement frame portion moves using the step by the deformation of the support portion even after the contact frame portion contacts the panel, and moves the engaging claw in the direction toward the panel. According to the feature, it is possible to further increase the urging force for urging the contact frame portion toward the panel side by the urging means, and it is possible to pull the electric device more strongly on the rear surface side of the panel.

Still further, the support portion may be formed by a beam member that draws an extension curve from the contact frame portion.

From another point of view, the present invention can be engaged with an engaging recess that forms a plurality of grooves in a ratchet shape in the insertion direction of the main body of the electric device in which the main body is inserted into the mounting hole opened in the panel. A substantially square frame-like mounting frame body that is inserted into and removed from the main body, and is provided with two substantially opposite sides of the substantially square frame shape, and other frame portions that are opposed to each other. respectively provided on the inner face of the two sides, displacement and engagement claws for engagement recess and the engagement of the electrical device, the engaging claws, the position of the engaging claw with respect to the frame portion in a substantially rectangular frame or disconnecting direction And an engagement claw support portion that supports the groove so that the engagement claw engages with the engagement claw from the inside of the engagement recess .

Here, the engagement claw is further provided with a displacement frame portion supported on the engagement claw support portion having the engagement claw on the inner surface, and the engagement claw support portion extends from the substantially rectangular frame-shaped corner portion to the displacement frame portion. It is characterized by comprising a beam member.
Further, if the plurality of beam members have a shape that draws a curve from the corner portion to the engaging claw side, the stress generated during the elastic deformation can be more dispersed as compared with the case where the beam members are formed in a straight line. It is preferable at the point which can do.
Further, if the plurality of beam members have a shape that draws an arch-shaped curve from the corner portion to the engaging claw side, it is possible to obtain better elastic force in the required direction. .

Still further, the engagement claw support portion includes a first support portion located at a position away from the engagement claw in the insertion / removal direction of the substantially square frame at one end extending to the displacement frame portion, and an end extending to the displacement frame portion. And a second support portion located closer to the engaging claw than the first support portion.
Furthermore, one end of the second support portion is located in the same direction as the engaging claw in the insertion / removal direction of the substantially square frame shape.
In addition, the first support portion and the second support portion are formed so as to be displaced from each other on the inner side and the outer side of the substantially square frame shape, and the second support portion is compared to both end portions thereof. If it is formed by being curved so that the center part is located outside, it is excellent in that the engaging action of the engaging claw can be further strengthened when the mounting frame is inserted into the main body of the electric device. ing.

From another point of view, the present invention relates to a method of attaching an electric device to an attachment hole opened in the panel. The electric device main body is inserted into the attachment hole of the panel, and the electric device is attached. Insert a substantially square frame-shaped mounting frame from the rear side end of the device, abut the flange provided on the electrical device against the first surface (front surface) of the panel, The abutting frame portions provided on the two opposite sides of the frame shape are brought into contact with the second surface (rear surface side) of the panel, and the other two opposite sides of the substantially rectangular frame shape of the mounting frame body Engaging the engaging claws provided in pairs and elastically supported on the inner surface with the engaging recesses formed on the outer surface of the main body of the electric device when the abutting frame portion abuts against the second surface; After the abutting frame is abutted against the second surface, the engaging claw is further moved in the direction toward the panel, and the engaging recess is further closer to the panel. By engaging the engaging claws into the groove of the side, characterized by biasing the electrical device on the second surface side.

  According to the present invention configured as described above, a more stable mounting can be realized in the mounting structure of the electrical device for mounting the electrical device on the panel as compared with the case where these configurations are not employed.

Embodiments of the present invention will be described below in detail with reference to the accompanying drawings.
1 and 2 are views showing a state in which the electric device 60 is attached to the panel 50 using the attachment frame (attachment frame body) 10. 1 is a perspective view seen from the rear side of the panel 50, and FIG. 2 is a cross-sectional view.

  As shown in FIG. 1, for example, a panel 50 such as a control panel having a panel thickness of 1 to 5 mm is provided with a plurality of mounting holes 51 opened with a standard panel cut size of 45 mm square, for example. An electric device 60 such as a timer, a counter, or an hour meter is a dedicated device for embedding in which the main body 61 is formed in conformity with the standard panel cut dimensions. In the electric device 60, an engagement recess (ratchet) 62 having a large number of grooves 62a is formed on the outer surface (four surfaces) of a main body 61 whose outer cross-sectional shape is formed in a substantially square shape. As shown in FIG. 2, a flange 63 is provided on the front side of the main body 61, which is a frame-like frame having an outer shape larger than the outer dimensions of the main body 61 (the length of one side is OL). . The flange 63 is a contact portion that prevents the electrical device 60 from further entering the rear surface side by contacting the front surface side of the panel 50 when the electrical device 60 is inserted into the mounting hole 51 of the panel 50. As the contact portion, two or more protrusions or the like can be used instead of the flange 63. The groove 62a of the engaging recess 62 has a triangular shape with the rear surface side being a vertical surface. In the present embodiment, the mounting frame 10 is inserted into the electric device 60 from the rear side, and the electric device 60 is attached to the panel 50.

  The panel 50 has a front panel front surface (first surface) 50a on which the instrument surface of the electrical device 60 comes out, and a rear panel rear surface (second surface) 50b which is the rear surface. With the flange 63 of the electrical device 60 in contact with the panel front surface 50a and the contact end surface 11a of the contact frame portion 11 of the mounting frame 10 in contact with the panel rear surface 50b, the engaging claws 20 of the mounting frame 10 are engaged. Is engaged with the engaging recess 62 of the electric device 60, so that the electric device 60 is held between the panels 50. That is, the panel 50 is sandwiched between the flange 63 which is a contact portion of the electric device 60 and the contact frame portion 11 of the mounting frame 10, and the contact claw portion 11 of the mounting frame 10 and the engaging claw 20 which is elastically supported. The electric device 60 is held between the panels 50 by pulling the main body of the electric device 60 to the rear side with the restoring force between them. As will be described later, in addition to this, it is also possible to fix it more firmly by screwing.

3-5 is a figure for demonstrating the structure of the attachment frame (attachment frame body) 10. FIG. 3 is a perspective view, FIG. 4 is a view of the mounting frame 10 as viewed from above in FIG. 3, and FIG. 5 is a view of the mounting frame 10 as viewed from the frame portion 12 side.
The mounting frame 10 is a substantially rectangular frame-shaped frame body whose inner surface is formed in accordance with the outer shape of the main body 61 of the electric device 60. As a substantially square frame shape, the attachment frame 10 is provided with the contact frame portion 11 on two sides facing each other, and the frame portion 12 is provided on the other two sides adjacent to each other. Then, the engaging claws 20 are provided on the inner surfaces of the opposing frame portions 12 with the toes facing inward. As a material of the mounting frame 10, an elastic member having an appropriate strength such as polyacetal (POM), polyamide, or polypropylene is used.

  The contact frame portion 11 has a contact end surface 11 a formed at one end in the depth direction D of the mounting frame 10 (the direction in which the mounting frame 10 is inserted and removed). The abutting end surface 11a is a surface whose inner surface is chamfered to be R or flat. By this chamfering, the mounting frame 10 can be smoothly inserted into the main body 61 of the electric device 60. In addition, corners 13 are formed on both sides of the contact frame 11 facing each other (that is, four corners of a substantially square frame shape), and the corners 13 are screws for enabling screwing if necessary. A hole 14 is provided. The end surface of the corner portion 13 coincides with the end surface of the abutting frame portion 11, and the position (height) of the abutting end surface 11a matches the position (height) of the end surface 13a of the corner portion 13. . Further, the corner portion 13 is provided with a notch 15 for assisting the deformation of the contact frame portion 11.

  Note that the contact frame portion 11 in this embodiment has a contact end surface 11a which is a surface without a projection at the end, and the panel is evenly distributed over the entire surface of the contact end surface 11a and the end surface 13a of the corner portion 13. 50 is configured to be able to contact 50. However, a plurality of protrusions may be provided in place of the contact end face 11a, and the plurality of protrusions may be in contact with the panel 50.

  The frame portion 12 includes a displacement frame portion 21 having an engagement claw 20 on the inner side (inner surface) and a support portion (engagement claw support portion) that supports the displacement frame portion 21 (that is, the engagement claw 20). The support part 22 and the second support part 23 are provided. In addition, the displacement frame portion 21 includes a lever 24 that is used when the displacement frame portion 21 is pressed against the panel 50 side or when the attachment frame 10 is removed from the electrical device 60.

  The first support portion 22 and the second support portion 23 are each composed of a doubly supported beam-like beam member that draws a curve from the corner portion 13 to the displacement frame portion 21 (on the side where the engagement claw 20 is provided). It has become. As this curve, an arcuate shape that draws an arc is adopted in the present embodiment. As shown in FIG. 5, the one end 23 a on the arch-shaped displacement frame portion 21 side formed by the second support portion 23 is positioned in the depth direction D of the mounting frame 10 in the depth direction of the engaging claw 20. It almost coincides with the position of D. In other words, at the one end 23a, the second support portion 23 and the engaging claw 20 have the same height in the depth direction D. On the other hand, the first support portion 22 supports the displacement frame portion 21 at one end 22 a located at a position away from the engaging claw 20 in the depth direction D of the mounting frame 10. One end 22a of the first support portion 22 is at a position continuous with the end surface 21a of the displacement frame portion 21, and the position of the one end 22a in the depth direction D is substantially equal to the end surface 21a. Thus, the 1st support part 22 and the 2nd support part 23 are spaced apart and provided in the depth direction D direction, and can support the displacement frame part 21 stably. In order to support the displacement frame portion 21 more stably, it is preferable that the one end 23a has the same height as the engaging claw 20 in the depth direction D. Is obtained. For example, in the depth direction D, the one end 22a of the first support portion 22 is located away from the engagement claw 20, and the one end 23a of the second support portion 23 is closer to the engagement claw 20 than the one end 22a. Position them so that they are close. With this configuration, when the frame 12 acts to “twist and deform” in the depth direction D as will be described later, the engaging claw close to the one end 23a with the height portion of the one end 22a serving as a fulcrum The pressing force of the 20 engaging recesses 62 can be increased.

  In this manner, the first support portion 22 and the second support portion 23 that are support portions (engagement claw support portions) are formed from the corner portion 13 to the displacement frame portion 21 by a “curve member that draws a curve”. Thus, the engaging claw 20 (displacement frame portion 21) can be supported so as to be displaceable in the direction of the depth direction D. The engaging claw 20 is provided at the center of the side of the frame portion 12, and an arch shape that draws an arc formed by the first support portion 22 and the second support portion 23 sandwiches the engaging claw 20. It is the shape of the object.

  Furthermore, although “arch shape” is adopted as this “beam member that draws a curve”, for example, “S shape” or the like can be adopted as another aspect. Further, the arch shape may be convex upward or downward in the depth direction D. Furthermore, it is also possible to support by a “straight beam” that is displaced in the depth direction D instead of a curved line. Furthermore, it is good also as a plate shape bent. However, when supported by a “straight beam”, elastic force is formed / maintained at both ends of the beam, and there is concern over deterioration due to stress concentration. From this point of view, the elastic support by the “curved beam member” is more preferable.

  Further, as shown in FIG. 5, the displacement frame portion 21 is supported by the displacement frame portion 21 in a state where the displacement frame portion 21 is lifted by a distance G from the corner portion 13 and the contact frame portion 11 in the depth direction D of the mounting frame 10. Yes. That is, there is a dimensional difference by a distance G between the end surface 21a of the displacement frame portion 21 and the contact end surface 11a. By supporting the displacement frame portion 21 in a state where it floats by a distance G, the displacement of the attachment frame 10 is inserted into the main body 61 of the electric device 60 and the contact end surface 11a of the contact frame portion 11 contacts the panel 50. A step is formed between the end surface 21 a of the frame portion 21 and the panel 50. Using this step, after the contact frame portion 11 is brought into contact with the panel 50, the displacement frame portion 21 having the engagement claws 20 can be moved in the panel direction.

  Further, as shown in FIG. 4, the first support portion 22 and the second support portion 23 that support the displacement frame portion 21 (that is, the engaging claw 20) in the mounting frame 10 to which the present embodiment is applied. Is formed so that the position is shifted between the inside and the outside of the frame. More specifically, the second support portion 23 whose one end 23 a is at the same height (position in the depth direction D) as the engaging claw 20 is formed outside the frame body, and its one end 22 a is the engaging claw 20. 1st support part 22 provided in the position away in the depth direction D from is formed inside the frame. In this way, by forming the support portions (the first support portion 22 and the second support portion 23) by shifting the inner side and the outer side of the frame body, for example, it is possible to perform die cutting from one direction.

Here, in the mounting frame 10 to which the present embodiment is applied, the facing distance IL1 (see FIG. 4) of the abutting frame portions 11 facing each other is the outer dimension OL (see FIG. 2) of the main body 61 of the electric device 60. So that it is shorter than
IL1 <OL
It is formed to become. In this case, when the mounting frame 10 is inserted into the main body 61 of the electric device 60, the abutting frame portion 11 facing the mounting frame 10 spreads in the direction A shown in FIG. As the contact frame portion 11 spreads in the A direction, the frame portion 12 adjacent to the contact frame portion 11 enters the B direction (inner side) shown in FIG. In addition, the deformation | transformation operation | movement of this frame is favorably performed by the notch 15 provided in the corner | angular part 13. FIG.

As shown in FIG. 4, the second support portion 23 is formed in a curved shape with the central portion of the beam extending outward from the positions of both end portions (one end 23 a, 23 b) of the beam. Here, when the contact frame portion 11 spreads in the A direction, a force balance as shown in FIG. 4 works at one end 23 b of the beam of the second support portion 23. That is, due to the spread of the contact frame portion 11 in the A direction, a tensile force in the P direction acts on the second support portion 23 at one end 23b. The force that opposes this is P ′. This P ′ is the resultant force of the tangential direction component P ₁ of the second support portion 23 that spreads obliquely outward and the component P ₂ that enters perpendicularly and enters obliquely inside. It becomes. As described above, in the attachment frame 10, the contact frame portion 11 spreads in the A direction, whereby a force component P ₂ is generated in the second support portion 23, and the second support portion is generated by the force component P ₂ . The portion of the engaging claw 20 whose height (position in the depth direction D) is close to 23 is further pushed into the inside. In other words, when the contact frame portion 11 spreads in the A direction, the frame portion 12 acts to “twist deformation” in the depth direction D. By this action, the attachment frame 10 is configured to be able to more firmly engage the engagement claw 20 with the engagement recess 62.

Next, the effect | action of the attachment structure which has the above structures, and the attachment method of an electric equipment are explained in full detail using FIGS.
First, the user inserts the main body 61 of the electric device 60 into the mounting hole 51 from the front side of the panel 50. Next, the mounting frame 10 is inserted from the rear surface side of the panel 50 with the contact end surface 11 a of the contact frame portion 11 facing the panel 50. In addition, since the main body 61 of the electric device 60 has a square cross section and the engagement recesses 62 are also formed on four surfaces, the mounting direction is not particularly specified. However, as shown in FIG. 4, the mounting frame 10 has no functional parts such as the engaging claws 20 on the surface on which the contact frame portion 11 is formed, and the outer dimensions of the frame body are reduced in this direction. Therefore, in the case where a plurality of electric devices 60 are arranged on the panel 50 with a narrow interval in one direction, the arrangement interval of the electric devices 60 can be reduced by providing the surface of the contact frame portion 11 in the overlapping direction. It becomes possible.

  As described above, the mounting frame 10 has a facing distance IL1 (see FIG. 4) of the facing contact frame portions 11 shorter than the outer dimension OL (see FIG. 2) of the insertion position of the main body 61 of the electric device 60. Therefore, when the mounting frame 10 is inserted into the electric device 60, the distance between the contact frame portions 11 facing each other is widened, and the entire connecting frame portions 12 are pressed inward, and a force in the B direction shown in FIG. 2 is applied. . Further, as described above, the force component in the inner direction is generated in the second support portion 23 due to the spread of the contact frame portion 11, and the frame portion 12 is twisted and deformed so as to press the engaging claws 20, and is shown in FIG. A rotational force in the R direction is applied. As a result, the engaging claws 20 are pressed against the main body 61 of the electric device 60 with a relatively strong force.

  Next, in a state where the flange 63 of the electric device 60 is in contact with the panel front surface 50 a of the panel 50, the contact end surface 11 a of the contact frame portion 11 of the inserted mounting frame 10 is in contact with the panel rear surface 50 b of the panel 50. The mounting frame 10 is pushed in until it is made. When the contact frame portion 11 (contact end surface 11a) contacts the panel 50 (panel rear surface 50b), the distance G shown in FIG. 5 is present, and the displacement frame portion 21 includes the first support portion 22 and the second support portion 22. Since the support portion 23 is elastically supported, a step is generated between the end surface 21 a of the displacement frame portion 21 and the panel rear surface 50 b of the panel 50. The user can push the displacement frame portion 21 that is elastically supported further toward the panel 50 due to the step. For example, when the displacement frame portion 21 is pushed into the panel 50 side by the operation of the lever 24, the engagement claw 20 facing the engagement recess (ratchet) 62 of the electric device 60 causes the engagement recess 62 to more than the panel 50. Meshes with the groove 62a close to. As a result, the engaging claw 20 and the contact end surface 11a of the contact frame portion 11 receive a force in a direction in which they extend by receiving the restoring force of the first support portion 22 and the second support portion 23. That is, the electric device 60 engaged with the engaging claw 20 and the engaging recess 62 receives a restoring force in a direction away from the panel 50, that is, in a T direction in FIG. As a result, the electric device 60 that is in contact with the panel 50 by the flange 63 is firmly attached to the panel 50 by the restoring force of the first support portion 22 and the second support portion 23.

  Thus, in the electrical equipment mounting structure to which the present embodiment is applied, the electrical equipment is applied to the panel 50 by the restoring force in the T direction, the pressing force in the B direction, and the deformation pressing force in the R direction shown in FIG. 60 can be satisfactorily locked.

  Here, when it is desired to fix the frame more firmly, the mounting frame 10 can be screwed to the panel 50 using the screw holes 14 of the mounting frame 10. At this time, in this embodiment, the corners 13 at the four corners of the frame body in which the screw holes 14 are provided are in contact with the panel 50 at the end surfaces, and the mounting frame 10 is pressed almost evenly against the panel 50. It has been. For this reason, for example, when screwing at two locations on the diagonal line of the frame of the mounting frame 10, the screws can be easily tightened evenly.

  When the mounting frame 10 is detached from the electric device 60 after the mounting frame 10 is attached to the electric device 60, the lever 24 is opened outward, and the engagement claw 20 is engaged from the engaging recess 62 of the electric device 60. After unlocking, hold the lever 24 and pull it out to the rear side. At this time, the mounting frame 10 elastically supports the engaging claw 20 with a curved beam member (the first supporting portion 22 and the second supporting portion 23), and the second supporting portion 23 is also on the outside. It is curved (see FIG. 4). Thereby, the engaging claw 20 tends to spread outwardly with respect to the inside portion of the first support portion 22 and the displacement frame portion 21 adjacent thereto. As a result, the lever 24 can be easily opened outward, and the engagement claw 20 can be easily disengaged.

  As described above in detail, in the present embodiment, the engaging claws 20 are provided on the inner surfaces of the two opposing sides of the mounting frame 10, and the beam members having a curved shape such as an arch shape on both sides of the engaging claws 20. (The 1st support part 22 and the 2nd support part 23) were formed. As a result, the portion having the spring property is a doubly-supported beam, and the rigidity can be increased as compared with the case where the present configuration is not adopted, and the holding force acting at the time of attachment can be increased.

  Further, the engaging claw 20 provided in the mounting frame 10 is provided in the approximate center of the side of the frame portion 12, and the arch shape formed by the first support portion 22 and the second support portion 23 has an engagement claw. 20 is the target shape. Thereby, when the attachment frame 10 is attached to the main body 61 of the electric device 60, the balance of the pressing force becomes good. That is, the spring force by the first support portion 22 and the second support portion 23 can be applied almost evenly, and the mounting state can be stabilized.

  Furthermore, in the present embodiment, the beam member having a curved shape such as an arch shape has a two-stage configuration of the first support portion 22 and the second support portion 23, and the second support portion 23 is the first support. The second support portion 23 was curved outward while being provided outside the portion 22. As a result, the side of the arch portion of the second support portion 23 is twisted and deformed, and in addition to increasing the force that enters the second support portion 23 close to the position where the engaging claws 20 are disposed in the depth direction D. The flexibility for moving the lever 24 in the opening / closing direction can be obtained.

  Furthermore, in the present embodiment, before the attachment to the main body 61, the length of the side of the frame portion 12 in the attachment frame 10 is made shorter than the outer dimension of the main body 61, and widens at the time of attachment. Was configured to enter inside. That is, the first support portion 22 and the second support portion 23 are elastically deformed at the time of attachment, whereby the arch shape is twisted. As a result, the engagement (engagement force) of the engagement claw 20 into the engagement recess 62 can be further increased.

It is the perspective view which looked at the state which attached the electric equipment to the panel using the attachment frame from the rear surface side of the panel. It is sectional drawing which showed the state which attached the electric equipment to the panel using the attachment frame. It is a perspective view for demonstrating the structure of an attachment frame. It is a block diagram of the attachment frame seen from the upper direction of FIG. It is the figure which looked at the attachment frame from the frame part side of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 ... Mounting frame (mounting frame body), 11 ... Contact frame part, 11a ... Contact end surface, 12 ... Frame part, 13 ... Corner | angular part, 20 ... Engagement nail | claw, 21 ... Displacement frame part, 22 ... 1st Support part, 23 ... second support part, 50 ... panel, 51 ... mounting hole, 60 ... electric equipment, 61 ... main body, 62 ... engagement recess, 62a ... groove, 63 ... flange

Claims (13)

An electric device having a contact portion that contacts the front surface side of the panel is inserted into the main body from the rear surface side of the panel by inserting the main body into the mounting hole opened in the panel from the front side of the panel. A mounting structure for an electrical device that is mounted on the panel using a substantially square frame-shaped mounting frame that engages with the main body,
The mounting frame is
An abutting frame portion provided on two opposite sides of the substantially square frame shape and in contact with the panel;
Engaging claws provided on inner surfaces of the other two opposite sides of the substantially square frame shape and engaged with engaging recesses formed on the outer surface of the main body of the electric device;
Urging means for urging the abutment frame portion to the panel side by engaging the engagement claw with the engagement recess ,
The urging means includes a support portion that supports the engagement claw from the two sides where the contact frame portion is formed, and elastically deforms the support portion to thereby move the contact frame portion to the panel side. Electrical equipment mounting structure characterized by biasing to The mounting frame is formed such that a facing distance between the contact frame portions provided on two opposing sides is smaller than an outer dimension of an insertion position of the main body of the electric device, and the mounting frame is formed on the main body of the electric device. by being inserted, the mounting structure of electrical equipment according to claim 1 in which the support portion for supporting the engaging pawl characterized in that the displacement in a direction abutting frame portion elastically deformed away from each other. The mounting frame further includes a displacement frame part having the engaging claw on the inner surface and supported by the support part,
The support portion supports the displacement frame portion so that a step is formed between the displacement frame portion and the panel when the contact frame portion contacts the panel. The electrical equipment mounting structure according to claim 1 or 2 . Even after the abutting frame part abuts on the panel, the displacement frame part moves using the step by deformation of the support part, and the engaging claw is directed in the direction toward the panel. The mounting structure for an electric device according to claim 3, wherein the mounting structure is moved. 5. The electrical equipment mounting structure according to claim 1, wherein the support portion is formed by a beam member that draws an extension curve from the contact frame portion. An electrical device in which the main body is inserted into the mounting hole opened in the panel is configured to be engageable with an engaging recess that forms a plurality of grooves in a ratchet shape in the insertion direction of the main body, and is an abbreviation that is inserted into and removed from the main body. A square frame-shaped mounting frame,
A frame portion provided on two opposite sides of the substantially square frame shape;
An engagement claw provided on each of the inner surfaces of the other two opposite sides of the substantially square frame shape for engaging with the engagement recess of the electrical device;
The position of the engaging claw is displaced in the insertion and removal direction of the substantially rectangular frame with respect to the frame portion, engaged to the engaging claws from the engaging recess to support to change the position of the groove for engagement A mounting frame body for an electric device, comprising: a claw support portion. A displacement frame portion having the engagement claw on the inner surface and supported by the engagement claw support portion;
The mounting frame body for an electric device according to claim 6, wherein the engagement claw support portion includes a plurality of beam members extending from the corner portion of the substantially square frame shape to the displacement frame portion.   The electric beam mounting frame according to claim 7, wherein the plurality of beam members have a shape that draws a curve from the corner portion to the engaging claw side.   9. The mounting frame body for an electric device according to claim 8, wherein the plurality of beam members have a shape that draws an arch-like curve from the corner portion to the engagement claw side. The engaging claw support portion extends to the displacement frame portion with a first support portion located at a position away from the engaging claw in the insertion / removal direction of the substantially square frame shape at one end extending to the displacement frame portion. The electrical device installation according to any one of claims 7 to 9, further comprising a second support portion at a position closer to the engaging claw than the first support portion at one end. Frame. The said one end of a said 2nd support part is located equivalent to the said engagement nail | claw in the said insertion / extraction direction of the said substantially square frame shape, The attachment frame body of the electric equipment of Claim 10 characterized by the above-mentioned.   The first support portion and the second support portion are formed so as to be displaced from each other on the inner side and the outer side of the substantially square frame shape, and the second support portion is compared to both end portions thereof. The mounting frame body for an electric device according to claim 10 or 11, wherein the mounting frame body is curved so that the center portion is located on the outside. An electrical device mounting method for mounting an electrical device in a mounting hole opened in a panel,
Insert the main body of the electric device into the mounting hole of the panel,
Insert a substantially rectangular frame-shaped attachment frame from the end on the rear surface side of the electrical equipment,
Abutting frame portions provided on two opposite sides of the substantially rectangular frame shape of the mounting frame body by causing a flange provided in the electrical device to abut on the first surface (front surface side) of the panel. In contact with the second surface (the rear surface) of the panel,
The contact frame portion is brought into contact with the second surface, with the engaging claws provided in pairs on the inner surfaces of the two opposite sides of the mounting frame body that are opposed to each other and elastically supported. Engaged with an engaging recess formed on the outer surface of the main body of the electrical device,
After the abutting frame portion is abutted against the second surface, the engaging claw is further moved in a direction toward the panel, and the engaging claw is further inserted into a groove closer to the panel of the engaging recess. The electrical device is attached to the second surface side by engaging with the electrical device.

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