JPH11260588A - Installation structure of earth fitting of hot water washing apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the assembly property and heighten the installation strength by make a screwing work of an earth fitting in a lower case easy and supporting the earth fitting at a plurality of points in the lower case. SOLUTION: This installation structure of an earth fitting 2 is a structure for earthing an earth wire 8 of an electric appliance through an earth fitting 2 fixed in a lower case 9 by screws. The earth fitting 2 is constituted of a horizontal terminal piece 3 to be fixed in an installation boss projected in the lower case 9 by screws and at the same time to be connected with the earth wire 8 and a vertical terminal piece 4 to which an earth screw 5 is to be attached. A U-shaped groove 15 opened upward and in which the earth screw 5 is freely inserted is formed in a side wall 11 of the lower case 9. The horizontal terminal piece 3 of the earth fitting 2 is put on the upper face 11a of the side wall 11 and the earth screw 5 attached to the vertical terminal piece 4 is inserted into the U-shaped groove and while the vertical terminal piece 4 being butted against the outer face 11b of the side wall 11, the screw part of the horizontal terminal piece 3 is positioned at the installation boss of the lower case 9.

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 grounding member of a hot water cleaning apparatus.

[0002]

2. Description of the Related Art Conventionally, a main body case has been divided into a lower case mounted on a rear upper surface of a toilet bowl and an upper case mounted on the lower case as a mounting structure of a grounding metal fitting of a hot water cleaning device. And a cleaning device equipped with a cleaning nozzle for discharging cleaning water, and an electric circuit for controlling the cleaning device and electric components such as an electric heater for heating the cleaning water. Is connected to a grounding metal screwed to the grounding metal, and an external grounding wire is connected to a grounding screw attached to the grounding metal. The conventional grounding fitting 2 and the lower case 9 are fixed with only the mounting screw 30, and an example thereof is shown in FIG. 8. The grounding fitting 2 is provided on the side wall 11 of the lower case 9.
A concave notch 50 having a size such that the vertical terminal piece 4 can be fitted therein is formed. The vertical terminal piece 4 is arranged in the notch 50, and the ground is screwed to the vertical terminal piece 4. The tip of the screw 5 is made to escape inside the lower case 9. Incidentally, reference numeral 8 in the drawing denotes a ground wire.

[0003]

However, in the conventional mounting structure of the grounding member 2, the grounding member 2 is positioned and supported by the lower case 9 at a portion other than the portion fixed by the mounting screw 30. And the movement of the grounding bracket 2 is not regulated by the lower case 9,
Before the mounting screw 30 is mounted, it is difficult to position the screw portion 6 of the grounding metal 2 with respect to the mounting boss 7 of the lower case 9, and the grounding metal 2 is easily moved in the direction of arrow A in FIG. The work was troublesome. In addition, when an external force is applied to the earth metal fitting 2 screwed to the lower case 9, the structure is such that the external force is received only by the mounting screw 30, so that the mounting boss 7 made of synthetic resin may be broken. In addition, there was anxiety about the mounting strength of the grounding metal 2.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned conventional example, and can easily perform a screwing operation of a grounding metal to a lower case and can support the grounding metal at a plurality of positions of the lower case. It is another object of the present invention to provide a mounting structure of a grounding metal fitting for a hot water cleaning device, which can improve assemblability and mounting strength.

[0005]

In order to solve the above-mentioned problems, the present invention provides a body case including a lower case 9 attached to a rear upper surface of a toilet bowl and an upper case attached to the lower case 9. A cleaning device 13 having a cleaning nozzle 12 which can be freely taken in and out of the main body case, and electric components such as an electric circuit for controlling the cleaning device 13 and an electric heater for heating cleaning water are housed. In the mounting structure of the earth metal fitting of the hot water cleaning device 13, the wire 8 is connected to the earth metal fitting 2 screwed to the lower case 9, and an external earth wire is connected to the earth screw 5 attached to the earth metal fitting 2. The metal fitting 2 is screwed to a mounting boss 7 protruding into the lower case 9 and connected to a ground wire 8, and a vertical terminal piece to which the ground screw 5 is mounted. Is composed of a, the side wall 1 of the lower case 9
1 is formed with a U-shaped groove 15 which is open upward and into which the ground screw 5 can be freely inserted. The horizontal terminal piece 3 of the ground metal 2 is placed on the upper surface 11a of the side wall 11 and the ground metal 2 is With the ground screw 5 attached to the vertical terminal strip 4 inserted into the U-shaped groove 15 and the vertical terminal strip 4 in contact with the outer surface 11 b of the side wall 11, the screw portion 6 of the horizontal terminal strip 3 is attached to the lower case 9. The mounting boss 7 is characterized in that it is configured to be positioned. With this configuration, the horizontal terminal strip 3 of the grounding metal 2 is attached to the side wall 11 while the grounding screw 5 attached to the grounding metal 2 is fitted into the U-shaped groove 15.
Of the horizontal terminal strip 3 only by placing the vertical terminal strip 4 on the upper surface 11a of the
And the mounting boss 7 of the lower case 9 are positioned. In addition, since the U-shaped groove 15 serves as a guide for the earth screw 5, the earth metal fitting 2 can be smoothly arranged at a regular position of the lower case 9, and after the earth metal fitting 2 is arranged, the earth metal fitting 2 is connected to the upper surface 11a and the outer surface 11b of the side wall 11. Since the ground metal 2 is supported by the U-shaped groove 15 and its movement is regulated, the ground metal 2 is hardly moved, and the screwing work of the ground metal 2 becomes extremely easy. Further, since the grounding member 2 is supported at a plurality of positions of the lower case 9 at positions other than the screw portion, the lower case 9
When an external force is applied to the grounding member 2 screwed to the mounting member, the external force increases, and the mounting boss 7 can be prevented from being broken.

Further, the inner surface 1 of the side wall 11 is
1c is preferably provided with a contact portion 16 which can be contacted. In this case, the grounding metal 2 can be prevented from being pulled out of the side wall 11 using the inner surface 11c of the side wall 11, and the grounding metal can be prevented. 2 can be more reliably positioned and supported in the horizontal direction, and the number of locations for supporting the ground metal 2 can be further increased.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below. The main body case of the hot water cleaning device 1 is, for example, a P.O.
It is made of a resin molded product such as P and is divided into a lower case 9 mounted on the rear upper surface of the toilet and an upper case (not shown) mounted on the lower case 9.

As shown in FIGS. 4 and 5, on the upper surface of the lower case 9, a cleaning device mounting portion 14, a hot water tank mounting portion 21, a mounting portion 22 for a circuit board 24 and a power transformer 25, and a deodorizing duct. An attachment portion is formed, a washing device 13 having a washing nozzle 12 which can be freely taken in and out of the main body case is attached to the washing device attachment portion 14, and an electric heater is built in the hot water tank attachment portion 21. A hot water tank 20 is attached, a deodorizing duct 27 for discharging odor in the toilet bowl to the outside is attached to a deodorizing duct attaching portion, and a circuit board 24 and a power A base body 23 on which a power transformer 25 is mounted is mounted.

On the circuit board 24 on the base 23, an electric circuit for controlling the cleaning device 13, the electric heater in the hot water tank 20, and the like is mounted. Then, as shown in FIG. 1, the ground wire 8 of each electric component such as the electric circuit, the electric heater in the hot water tank 20, the power transformer 25, and the like is connected to the lower case 9 via the ground fitting 2. Grounded outside. The electric components are not limited to the embodiments shown in FIGS. 4 and 5, but also include, for example, an electric heater built in a drying device for supplying warm air into a toilet bowl. In FIG. 4, 26 is a deodorizing duct, 60 is a power cord, and 61 is a wiring connector.

Here, a pair of threaded mounting bosses 7 project from the side of the hot water tank mounting portion 21 of the lower case 9 near the side wall 11 of the lower case 9. The earth metal fitting 2 is attached to the. As shown in FIGS. 2 and 3, the grounding metal 2 is screwed to a mounting boss 7 protruding from the lower case 9 and is connected to a grounding wire 8.
Are connected, and a vertical terminal piece 4 to which the ground screw 5 is attached. The width between the two surfaces 3a, 3a at the base of the horizontal terminal strip 3 is substantially equal to the width of the vertical terminal strip 4, and the rear end face of the base is in contact with the inner surface 11c of the side wall 11. It is a contact portion 16. Note that the contact portion 16 does not necessarily need to contact the inner surface 11c of the side wall 11, and may be disposed facing each other with a small gap as shown in FIG. Further, the horizontal terminal strip 3 is provided with a screw portion 6 which is screwed to the mounting boss 7. In the present embodiment, the screw 6
Is formed of two semicircular cutout holes 6a formed at two locations on one side of the tip end of the horizontal terminal strip 3.
Mounting head 30 with its head hooked into the notch 6a.
Of the horizontal terminal strip 3 by screwing the tip of
Can be fixed to the mounting boss 7. Of course, the screw portion 6 is not limited to the notch hole, but may be a circular hole. On the other hand, a ground screw mounting hole 31 for mounting the ground screw 5 is formed in the vertical terminal piece 4 of the ground metal 2. And the ground screw 5
Is inserted into the U-shaped groove 15 and the vertical terminal piece 4 is brought into contact with the outer surface 11b of the side wall 11, whereby the horizontal terminal piece 3
Is configured to be able to be positioned on the mounting boss 7 of the lower case 9. An external ground wire is connected to the ground screw 5. Reference numeral 32 in FIG. 2 denotes a non-slip groove for fastening the end of the external ground wire to the ground screw 5.

On the other hand, on the side wall 11 of the lower case 9, FIG.
As shown in FIG. 2, a U-shaped groove 15 opened upward is formed. The U-shaped groove 15 is for releasing the ground screw 5, and when the tip of the ground screw 5 is released from the U-shaped groove 15 to the inside of the lower case 9, the vertical terminal piece 4 of the ground metal fitting 2 becomes the outer surface of the side wall 11. 11b. Also,
The groove width of the U-shaped groove 15 is formed to be slightly larger than the outer diameter of the ground screw 5, so that both side surfaces 15a of the U-shaped groove 15 are formed.
Serves as a guide for the ground screw 5 so that the ground metal 2 can be smoothly arranged at a regular position on the lower case 9. Further, the depth of the U-shaped groove 15 is determined by adjusting the depth of the ground screw 5 in the state where the ground metal 2 is arranged at a regular position of the lower case 9.
The depth is set so as to hit the bottom surface 15b of the groove 15. Therefore, the bottom surface 15b of the U-shaped groove 15 has a function of receiving the load via the ground screw 5 when the load is applied to the ground metal 2 from above. Furthermore, U-shaped groove 1
At the top of 5, a stepped portion 34 is formed which is stepped down from the upper end of the side wall 11. FIG. 2 shows both side surfaces of the stepped portion 34.
As shown in the figure, both surfaces 3a, 3a at the base of the horizontal terminal piece 3
The tapered surface 11d is formed by a tapered surface 11d which is inclined outwardly so that both side surfaces opposed to the upper surface are upward.
The base portion of the horizontal terminal piece 3 can be held in a state of being positioned and supported in the lateral direction between d and 11d.

When screwing the grounding metal 2 to the lower case 9, the grounding metal 2 is fitted into the side wall 11 from above, as shown in FIG. Is inserted into the U-shaped groove 15, and the narrow base of the horizontal terminal piece 3 of the grounding metal fitting 2 is fitted into the step-down portion 34. At this time, since both side surfaces 15a in the U-shaped groove 15 serve as a guide for the ground screw 5, the ground metal 2 can be smoothly arranged at a regular position of the lower case 9, and at the same time, the screw portion 6 of the horizontal terminal piece 3 The mounting boss 7 of the lower case 9 is positioned. Further, at this time, since both side surfaces of the stepped portion 34 are each formed by the tapered surface 11d which is inclined outwardly as it goes upward, the root portion of the horizontal terminal piece 3 can be easily fitted and the horizontal terminal piece 3 can be moved in the horizontal direction. Is positioned and supported.

Therefore, the grounding metal 2 is connected to the outer surface 1 of the side wall 11.
1b and the inner surface 11c in the front-rear direction (the thickness direction of the side wall 11)
Movement is regulated. That is, as shown in FIG. 6, the contact portion 16 of the horizontal terminal piece 3 contacts the inner surface 11 c of the side wall 11 and the vertical terminal piece 4 contacts the outer surface 11 b of the side wall 11. It is possible to prevent the grounding metal 2 from getting out of the side wall 11 or the grounding metal 2 from going into the inside of the side wall 11 by using the base 11c. Further, the grounding metal fitting 2 has tapered surfaces 11 d, 11 d on both sides of the stepped portion 34 of the side wall 11 and the U-shaped groove 1.
5 with both side surfaces 15a (in the length direction of the side wall 11)
Movement is also restricted, so that the grounding metal 2 can be reliably positioned in the lateral direction. Therefore, when the mounting screw 30 is screwed into the boss, the grounding metal 2 does not shift, and the screwing work of the grounding metal 2 is extremely easy. And the assemblability is improved.

Further, since the ground metal 2 is supported at a plurality of locations on the side wall 11 as described above, in addition to the mounting boss 7 of the lower case 9, external force is applied to the ground metal 2 screwed to the lower case 9. When it is added, the number of places receiving external force increases, and the strength increases. That is, with respect to the pulling in the lateral direction, the earth metal fitting 2 includes the mounting screw 30, the inner and outer surfaces 11 b and 11 c of the side wall 11, the tapered surfaces 11 d on both sides of the stepped portion 34, and the both sides 15 a of the U-shaped groove 15. And will be supported respectively, and for pressure from above,
The earth metal fitting 2 includes a mounting boss 7 and a stepped portion 3 of the side wall 11.
4 and the bottom surface 15b of the U-shaped groove 15 are supported at three points, so that it is possible to prevent external force from being concentrated on the mounting boss 7, and to prevent the mounting boss 7 made of synthetic resin from breaking. As a result, the mounting strength of the grounding member 2 can be improved.

Further, since the earth metal fitting 2 is supported by using the side wall 11 of the lower case 9 and the movement thereof can be restricted, the lower case 9 may be provided with a positioning rib, a supporting rib or the like separately. There is also an advantage that the structure of the lower case 9 can be simplified without the necessity. In addition,
In the above embodiment, the stepped portion 34 is provided above the U-shaped groove 15, but the stepped portion 34 is not always necessary and can be omitted.

[0016]

As described above, according to the first aspect of the present invention, there is provided a body case including a lower case attached to a rear upper surface of a toilet and an upper case attached to the lower case. A cleaning device equipped with a cleaning nozzle that can be freely taken in and out of the main body case, and electric components such as an electric circuit for controlling the cleaning device and an electric heater for heating the cleaning water are housed, and the ground wire of the electric component is connected to the lower case. In the mounting structure of the grounding device of the hot water cleaning device, which is connected to the screwed grounding device and the external ground wire is connected to the grounding screw attached to the grounding device, the grounding device is
It consists of a horizontal terminal strip that is screwed to the mounting boss protruding into the lower case and to which the ground wire is connected, and a vertical terminal strip to which the ground screw is mounted. A U-shaped groove into which a ground screw is freely insertable is formed. The horizontal terminal piece of the ground metal is placed on the upper surface of the side wall, and the ground screw attached to the vertical terminal piece of the ground metal is inserted into the U-shaped groove. Since the screw portion of the horizontal terminal piece is positioned on the mounting boss of the lower case in a state where the vertical terminal piece is in contact with the outer surface of the side wall by being inserted,
While the ground screw attached to the grounding fitting is inserted into the U-shaped groove, the horizontal terminal strip of the grounding fitting is placed on the upper surface of the side wall and the vertical terminal strip is brought into contact with the outer surface b of the side wall. The screw portion of the terminal piece and the mounting boss of the lower case are positioned. In addition, since the U-shaped groove serves as a guide for the ground screw, the grounding metal can be smoothly placed at the proper position of the lower case 9, and after the grounding metal is placed, the grounding metal is supported by the upper surface and the outer surface of the side wall and the U-shaped groove. In addition, since the movement is restricted, the earth metal becomes difficult to move, and the screwing work of the earth metal becomes extremely easy. In addition, since the grounding metal is supported at a plurality of locations on the lower case other than the screw portion, when an external force is applied to the grounding metal screwed to the lower case, there are many places where the external force is received, and the mounting boss is increased. Can be prevented, and the mounting strength of the grounding metal can be improved. Further, since the lower case is used to support the grounding metal and restrict its movement, there is no need to separately provide a positioning rib or a supporting rib on the lower case. Can be simplified.

According to a second aspect of the present invention, in addition to the effect of the first aspect, the horizontal terminal piece is provided with a contact portion capable of contacting the inner surface of the side wall, so that the inner surface of the side wall is used. Also, it is possible to prevent the grounding metal from coming off to the outside of the side wall, and the positioning support of the grounding metal in the lateral direction is more reliable. Further, since the number of locations for supporting the grounding metal is further increased, it is more effective to prevent the mounting boss from being damaged.

[Brief description of the drawings]

FIGS. 1A and 1B show an example of an embodiment of the present invention, wherein FIG. 1A is a plan view illustrating an attached state of a grounding metal, and FIG. 1B is a side view.

FIG. 2 is an exploded perspective view of a lower case and a grounding metal according to the first embodiment.

3A and 3B show the grounding metal of the above, wherein FIG.
(B) is a partially cutaway side view, and (c) is a front view.

FIG. 4 is a plan view illustrating an internal configuration of the hot water cleaning device of the above.

FIG. 5 is a front view of FIG. 4;

FIG. 6 is an explanatory diagram of a contact state between the grounding metal and the inner surface of the side wall.

FIGS. 7 (a) and 7 (b) are explanatory views of a mounting state of the earthing metal fitting.

8 (a) and 8 (b) are a plan view and a side view for explaining a mounting state of a conventional grounding metal fitting.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Hot water washing apparatus 2 Grounding fitting 3 Horizontal terminal piece 4 Vertical terminal piece 5 Ground screw 7 Mounting boss 8 Ground wire 9 Lower case 11 Side wall 15 U-shaped groove 16 Contact part

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Katsuyuki Okumura 1048 Kazumasa Kadoma, Osaka Prefecture Matsushita Electric Works, Ltd.

Claims (2)

[Claims] 1. A cleaning device having a cleaning nozzle which can be freely taken in and out of a main body case in a main body case including a lower case attached to a rear upper surface of a toilet and an upper case mounted on the lower case, and a cleaning device. An electric circuit for controlling the apparatus and electric parts such as an electric heater for heating the washing water are housed, and the ground wire of the electric part is connected to a grounding metal screwed to the lower case, and attached to the grounding metal. In the mounting structure of the grounding fitting of the hot water washing device in which the external grounding wire is connected to the grounding screw, the grounding fitting is screwed to a mounting boss protruding in the lower case and connected to the grounding wire. It consists of a terminal strip and a vertical terminal strip to which the ground screw is attached. A U-shaped groove is formed on the side wall of the lower case, which opens upward and allows the ground screw to be inserted. The horizontal terminal piece of the earthing metal fitting is placed on the upper surface of the side wall, and the ground screw attached to the vertical terminal piece of the earthing metal fitting is inserted into the U-shaped groove so that the vertical terminal piece contacts the outer surface of the side wall. Wherein the screw portion of the horizontal terminal piece is positioned on the mounting boss of the lower case. 2. The mounting structure according to claim 1, wherein said horizontal terminal strip is provided with a contact portion capable of contacting an inner surface of said side wall.