JP2565563Y2 - Terminal cover mounting structure - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for mounting a terminal cover for a quick-connecting terminal on the rear surface of a housing of a device which is attached to a building material so as to cover an opening of the building material.

[0002]

2. Description of the Related Art A conventional terminal cover for a quick connection terminal portion for inserting and connecting a power supply line from an opening of a building material is slidably inserted laterally into a terminal cover stopper provided near the quick connection terminal portion. Had to be attached.

[0003]

However, since the quick connection terminal portion is a portion to which the power supply line is inserted and connected, a work space for inserting the power supply line is required. Moreover,
In the terminal cover mounting structure as described above, since the terminal cover is slid and inserted from a lateral direction (a direction orthogonal to the insertion direction of the power supply line), the operation for slidingly inserting the terminal cover is performed. More space is needed. Therefore, the conventional terminal cover mounting structure requires two spaces, a working space for inserting the power supply line and a working space for slidingly inserting the terminal cover. Had a problem that it was not suitable.

The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a terminal cover mounting structure which can be made compact without using unnecessary space. .

[0005]

According to the present invention, in order to solve the above-mentioned problems, according to the present invention, a quick connection terminal portion for inserting and connecting a power supply line from a construction material opening is provided. A terminal cover mounting structure for a quick-connecting terminal portion on the back surface of the equipment housing, which is provided in a recess on the back surface of the housing and is attached to the building material so as to cover the opening of the building material with the back surface of the equipment housing. The terminal cover is formed of a substantially rectangular plate-like object 2
Notches are provided near both ends of the side, and are wider than the opening of the recess, and the rear surface of the housing of the device is formed by cutting the upright pieces corresponding to the notches and the contact ribs of the terminal cover with the recess. In the vicinity of the periphery of the opening, wherein the upright piece is provided with a locking claw for the notch, and the locking claw is provided with the upright piece when the notch is pressed against the notch. Is provided with an inclined surface that outwardly bends with elasticity, wherein the abutment rib abuts the terminal cover when the notch is locked to the locking claw, respectively.
In addition, the contact rib is provided with a lead-in portion of the power supply line to the quick connection terminal portion.

Further, in the invention according to claim 2, the position of the lead-in portion with respect to the recess opening is such that the direction in which the power supply line is drawn is substantially perpendicular to the direction in which the standing piece bends. It is characterized by having two places of

[0007]

According to the present invention, each notch of the terminal cover is brought into contact with the inclined surface of the corresponding locking claw, and then the terminal cover is provided. When a pressing force is applied to the whole, the respective standing pieces are bent outward due to the inclined surface, so that the respective notches of the terminal cover are locked with the respective locking claws and the terminal cover is pressed against the contact rib. Touch That is, the terminal cover is fixed by the locking claw and the contact rib so as to cover the recess opening on the back surface of the device housing in plan view. In addition, the work space for attaching the terminal cover can be made the same space as the work space for inserting the power supply line into the quick connection terminal portion of the recess opening on the back of the device housing, and the terminal cover can be attached with one touch. It is.

Further, in the invention according to the second aspect, the power supply line inserted and connected to the quick connection terminal portion is bent at a substantially right angle to the insertion direction of the power supply line at the opening of the recess, and the contact rib is formed. Then, the terminal cover is pulled out, and then the terminal cover is attached with one touch as described above. Then, the bending of the power supply line extends at the bent portion at a substantially right angle, and even when the power supply line presses the terminal cover from the quick connection terminal portion side, the standing piece is oriented in a direction orthogonal to the drawing direction of the power supply line. Since only the terminal cover bends, the terminal cover is not easily detached. In addition, since the lead-in portions are provided at two positions in the power supply line pull-out direction where the terminal cover is difficult to come off, any one of the lead-in portions can be selected according to the site conditions, and the power supply line can be drawn in.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment in which the terminal cover mounting structure according to the present invention is applied to an intercom will be described in detail with reference to FIGS.

FIG. 1 is an exploded perspective view showing a mounting structure of the terminal cover. FIG. 2 is a perspective view showing a mounting structure of the terminal cover. FIG. 3 is an exploded perspective view illustrating an intercom to which the terminal cover mounting structure is applied.

As shown in FIG. 3, the intercom 1 has a substantially rectangular parallelepiped shape, and includes a plastic box-shaped device housing 2 made of plastic. The device housing 2 includes an upper case 3 and a lower case 4
Are fitted. The upper case 3 includes a pressing operation unit 3a operated when talking, and a number of small sound holes 3b. Various electrical components such as a printed wiring board (not shown), a microphone (not shown), and a speaker (not shown) are attached and arranged in the hollow portion of the device housing. In addition, the lower case 4 is provided with locking portions (not shown) for hooking on the hook portions 5 a of the mounting bracket 5 near the four corners on the back surface.

The mounting bracket 5 is a sheet metal formed into a flat, substantially U-shaped cross section, and the above-mentioned hook portions 5a are formed near both ends of the opposite sides of the U-shape, respectively.
A rectangular opening 5b is provided substantially at the center of the back surface of the mounting bracket 5.
Are provided, and mounting holes 5c, 5c are formed near the opening 5b so as to sandwich the opening 5b.
In addition, in FIG. 3, A is a wall material corresponding to a construction material. The wall material A has a building material opening A ₁ for drawing out a power line B for supplying commercial power to the intercom 1.
Has been opened.

The above-described intercom 1 is attached to the wall member A as follows. That is, first, the wood screws 6, 6 are passed through the mounting holes 5c, 5c of the mounting bracket 5, respectively, and the wood screws 6, 6 are tightened, so that the mounting bracket 5 is attached to the wall material A.
Then, pull the power line B through the opening 5b, the power supply line wire B _1, B ₁ and the back surface of the instrument cabinet 2 quick connect terminal portions 7 provided on the surface (back surface of the lower case 4) (Figure 1 B ) (See FIG. 1). After that, the terminal cover 8 is
Attach. An engaging portion (not shown) for hooking on the hooking portion 5a provided at each of the four corners on the back surface of the lower case 4.
To the corresponding hooks 5a,
The intercom 1 is pulled down along the surface of the wall material A. Then, the intercom 1 is attached to the wall material A via the mounting bracket 5.

Next, the structure near the quick connection terminal portion 7 of the above-described intercom 1 will be described with reference to FIG. FIG. 1 is an exploded perspective view showing a substantially central portion of the back surface of the lower case 4. As shown in FIG. 1, a concave step 4a is provided on the back surface of the lower case 4. In the center of this step 4a, a recess 4
b is provided, and a quick-connecting terminal portion 7 is provided in a recessed portion of the recess 4b. The quick connection terminal portion 7 is provided with a core wire insertion hole 7.
a and 7a.

The quick connection terminal portion 7 is connected to the core wire B of the power supply line B.
_1, B ₁ the core wire insertion hole 7a, is inserted into 7a, quick connect terminal portions 7 inside the fast binding mechanism (not shown) core B _1, B ₁ and bite example crowded in, intercom 1 various internal electrical components To supply power.

The terminal cover 8 is provided with cutouts 8a near both ends of two opposite sides of the substantially rectangular plate and is made of insulating plastic wider than the opening of the recess 4b. case 4 back side, and four standing piece 4c which correspond to the notch 8a, the contact rib 4d _1, 4d _2, 4d ₃ of the terminal cover 8, and provided in the vicinity of the recess 4b the opening peripheral edge I have.

[0017] Each of the standing piece 4c is provided with a locking claw 4c ₁ for engaging the notch 8a. This locking claw 4c ₁
The notch portion 8a is provided with inclined surfaces 4c ₂ to deflect with a elasticity when it is contact pressed standing piece 4c outwardly.

The contact rib 4d _1, 4d _2, 4d ₃ is notch 8
in which the terminal cover 8 abuts when a is sealed engagement respectively claw 4c ₁ corresponding. Although contact rib 4d ₁ is provided into a band meandering, and generally along the edge of the stepped portion 4a. Further, abutment ribs 4d _2, 4d ₃ is a short piece, respectively. And these contact ribs 4d1 _, 4d2 _,
4d ₃ are separated from each other, and lead-in portions 4e, 4e for leading the power supply line B to the quick connection terminal portion 7 (a gap between an end of the contact rib 4d _{2 and} an end of the contact rib 4d ₁ , and forming a gap) between the contact end to end abutment rib 4d ₁ of the ribs 4d _3.

[0019] Moreover, the retraction portion 4e, 4e, to the direction of flexing the standing piece 4c when the notch portion 8a of the terminal cover 8 is in contact pressed against the inclined surface 4c ₂ claws 4c _1, A straight line connecting the center of the opening of the recess 4b and the center of the recess 4e is provided at a position substantially orthogonal to the plane view. In addition,
The terminal 9 shown in FIG. 1 and FIG. 2 is for connecting a weak electric wire for communication.

In the terminal cover mounting structure described above, the terminal cover 8 can be mounted as follows. That is, the core wire insertion hole 7a of the quick connect terminal portions 7, to insert the core wire B _1, B ₁ of the power supply line B to 7a. Then, the power line B
Is bent at a substantially right angle in the vicinity of the opening of the recess 4b and is pulled out from the lead-in portion 4e so as to be along the step portion 4a. At this time, a convenient one of the retraction units 4e, 4e is selected and used according to the site situation.

Thereafter, the respective notches 8a of the terminal cover 8 are replaced with the corresponding locking claws 4c ₁ of the respective notches 8a.
Allot of the inclined surface 4c _2. When pressing the entire terminal cover 8 in the direction of the quick connect terminal portions 7, each of the standing piece 4c by the inclined surfaces 4c ₂ is bent in the outside direction. Then, each of the notch 8a beyond the distal end of the locking claw 4c ₁ locking claws 4
It engaged with c _1, at the same time the vicinity of the peripheral edge of the terminal cover 8 is in contact with the contact rib _{4d 1, 4d 2, 4d 3} . Then, the terminal cover 8, each engaging claw 4c ₁ and the abutment rib 4d _1, 4d _2,
By a 4d _3, it is fixed to the recess 4b opening of the lower case 4 rear surface so as to cover in a plan view. That is, the terminal cover 8
Is set to the state shown in FIG. 2 with one touch.

When the interphone 1 with the terminal cover 8 attached in the state shown in FIG. 2 is attached to the wall material A via the mounting bracket 5, the power supply line B is bent at a substantially right angle near the opening of the recess 4b. Although it is made to follow the step 4a,
A pushing force in the direction of removal acts on the terminal cover 8. However, since the standing piece 4c is bent only in a direction perpendicular to the direction in which the power supply line is drawn out, the terminal cover is not easily detached, which is convenient.

[0023]

According to the present invention, the work space for mounting the terminal cover is as follows: The terminal cover mounting structure of the present invention is constructed as described above.
3. The work space for inserting a power supply line into the quick connection terminal portion of the recess opening on the back surface of the device housing can be made the same space as the work space, so that useless space can be eliminated and the terminal cover can be attached with one touch. In the invention, in addition to the above-mentioned effects, it is convenient to select one of the lead-in parts according to the situation at the site and to draw in the power supply line, and it is convenient to use the power supply line when attaching the equipment housing to the construction material. This has the effect of providing an excellent terminal cover mounting structure that does not come off with the pushing force of the terminal cover.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view showing one embodiment of a terminal cover mounting structure according to the present invention.

FIG. 2 is a perspective view showing an embodiment of a terminal cover mounting structure according to the present invention;

FIG. 3 is an exploded perspective view for explaining an embodiment in which a device housing to which the terminal cover mounting structure according to the present invention is applied is attached to a building material.

[Explanation of symbols]

4 instrument cabinet 4b instrument cabinet back surface of the recess 4c standing piece 4c ₁ engagement claw 4c ₂ inclined surfaces 4d _n contact rib (where, n is 1, 2, 3) 4e retraction part 7 quick connect terminal 8 Terminal cover 8a Notch A Construction material A ₁ Construction material opening B Power line

Claims (2)

(57) [Scope of request for utility model registration] 1. A construction material having a quick-connecting terminal portion for inserting and connecting a power supply line from a construction material opening in a recess on the back surface of an equipment housing and concealing the construction material opening on the back surface of the equipment housing. A mounting structure of a terminal cover for a quick connection terminal portion on a rear surface of a device housing to be attached, wherein the terminal cover has cutouts near both ends of two opposite sides of a substantially rectangular plate-like object, and The recess opening is wider than the recess opening, and the rear surface of the device housing is provided with an upright piece corresponding to the notch and a contact rib of the terminal cover near the periphery of the recess opening. The standing piece has a locking claw of the notch, and the locking claw has an inclined surface that flexes the standing piece outward with elasticity when the notch is pressed against. The notch of the contact rib is in contact with the locking claw. The terminal cover comes into contact with each other when locked, and the contact rib has a lead-in portion of the power supply line to the quick-connecting terminal portion. . 2. A position of the lead-in portion with respect to the recess opening, wherein two positions where a lead-in direction of the power supply line is substantially perpendicular to a bending direction of the standing piece. The terminal cover mounting structure according to claim 1.