JPH08311952A - Fixing structure of tank cover - Google Patents

Abstract

PURPOSE: To enhance the mounting ability with a base plate installed to the top on the rear part of a toilet bowl main body when fixing a tank cover laid out in a state that covers a flushing tank installed on the base plate. CONSTITUTION: A fit-in recessed part 60 is installed to either a base plate or a tank cover 46 while a fit-in projected part is installed to the other at a responding position respectively. Fastening holes 68 are installed at the formation positions of their fit-in recessed part 60 and fit-in projected part 72 and in their fit-in state so that the holes 68 may be aligned with each other. In the fastening holes 68, the tank cover 46 and the base plate 12 are fastened and fixed with small machine screws 24.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fixing structure for a base plate provided on a rear upper surface of a toilet body and a tank cover arranged on the base plate, and more particularly to a technical means for improving assemblability.

[0002]

2. Description of the Related Art In recent years, a toilet provided with a local cleaning device for ejecting cleaning water from a nozzle tip toward a human body local area has been widely used. As a kind of toilet bowl with a local cleaning device, a base plate is provided on the rear upper surface of the toilet body, and a wash water tank for storing toilet wash water is installed on the base plate along with nozzles, electromagnetic pumps, deodorizing fans and other mechanical parts. It is known that a tank cover is mounted on the base plate so as to cover them, and the tank cover is fixed to the base plate.

Thus, conventionally, the base plate and the tank cover have been fastened and fixed to each other by means of screws in fastening holes provided at their corresponding positions.

[0004]

However, when assembling the tank cover in the related art, the fastening holes provided in the tank cover and the base plate are likely to be displaced from each other, and the screws are inserted after the fastening holes are aligned with each other. Then, the work for fastening and fixing it takes time and labor, and there is a problem that the assemblability is poor.

[0005]

The invention of the present application has been made to solve such a problem. Thus, the invention of the present application is to provide a base plate provided on the upper surface of the rear part of the toilet body, on which a cleaning water tank for storing toilet cleaning water is mounted, and a standing state on the base plate in a state of covering the cleaning water tank. A fixing structure for the disposed tank cover, wherein one of the base plate and the tank cover has a fitting concave portion, and the other has a fitting convex portion fitted into the fitting concave portion at corresponding positions. Along with the provision of the fitting recesses and the fitting projections, a fastening hole is provided which is matched with each other in the fitted state, and the tank cover and the base plate are fastened with a fastener such as a screw in the fastening hole. It is characterized by being fixed (Claim 1).

According to another invention of the present application, in claim 1, a rising portion is provided at a peripheral edge portion of the base plate, and a fitting groove serving as the fitting concave portion having an upward opening shape is formed on an outer surface side of the rising portion. , A fitting convex portion that is fitted into the fitting groove downward from an opening portion above the fitting groove is provided on the inner surface side of the tank cover, and the fitting groove has a bottom portion and a width direction center side of the fitting groove. A stopper portion is provided which protrudes and comes into contact with the fitting convex portion from the lower side, and the fitting groove and the fitting convex portion are positioned by contact between the stopper portion and the fitting convex portion. It is characterized (claim 2).

[0007] In still another invention of the present application, in claim 2, the stopper portion is an inclined surface whose upper surface moves upward as it goes to both sides in the width direction from the central portion of the fitting groove. At the same time, the lower surface of the fitting convex portion is a corresponding inclined surface (claim 3).

According to still another aspect of the present invention, in claim 2 or 3, the stopper portion in the fitting groove is a supporting portion for supporting the weight of the tank cover, and the fitting convex portion is a supported portion. It is characterized in that (claim 4).

[0009]

As described above, according to the first aspect of the present invention, one of the base plate and the tank cover disposed on the base plate is provided with a fitting concave portion, and the other is provided with a fitting convex portion so that they are fitted to each other. According to the present invention, by simply fitting the fitting concave portion and the fitting convex portion, the fastening holes in the base plate and the tank cover can be fitted together. The respective fastening holes can be aligned with each other, and the base plate and the tank cover can be easily fastened and fixed with a fastener such as a screw. That is, according to the present invention, the assembling property of the tank cover is significantly improved.

According to the second aspect of the present invention, the fitting groove having the upward opening shape is provided as the fitting concave portion on the outer surface side of the rising portion of the peripheral edge portion of the base plate, while the fitting convex portion is provided on the inner surface side of the tank cover. According to the present invention, when the tank cover is arranged on the base plate, only by setting the tank cover by fitting the fitting convex portion into the fitting groove from the open portion at the upper end, The relative position between the fitting groove and the fitting convex portion can be defined by the stopper portion of the fitting groove. That is, the fastening holes provided in the base plate and the tank cover can be aligned with each other, and the work of assembling the tank cover can be simplified.

According to a third aspect of the present invention, the upper surface of the stopper portion and the lower surface of the fitting convex portion are inclined surfaces having a shape that moves upward from the center of the groove toward both sides in the width direction. According to the invention, the positions of the fitting groove and the fitting convex portion in the groove width direction can be automatically positioned by the guiding action of the inclined surfaces only by bringing the fitting convex portion into contact with the stopper portion.

Therefore, according to the present invention, the positions of the fastening holes of the base plate and the tank cover can be matched very easily by only setting the tank cover so that the fitting projection is fitted in the fitting groove. It is possible to further improve the assembling property of the tank cover.

According to a fourth aspect of the present invention, the stopper portion in the fitting groove is a supporting portion for supporting the weight of the tank cover, and the fitting convex portion is a supported portion. It is possible to prevent the fastening holes of the tank cover from being inconsistent with the fastening holes of the base plate by being supported by other supporting parts before the fastening holes of the tank cover are aligned with the fastening holes of the base plate. It is possible to eliminate the need to provide the portion on the base plate and simplify the assembly structure.

[0014]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, embodiments of the present invention will be described in detail with reference to the drawings. FIG. 1 is an exploded view of a toilet bowl with a local cleaning device. In the figure, 10 is a toilet bowl body made of ceramics,
A base plate 12 made of resin is placed and fixed on the upper surface of the rear part. Then, on the base plate 12, a nozzle 14 for ejecting washing water toward the human body part, a deodorizing fan 1
6, various mechanical parts constituting the local cleaning device such as the pump 18 are mounted.

On the base plate 12, a tank tray 22 having a concave shape portion 20 at the bottom and having a generally shallow tray shape is placed. This tank receiver 22 is shown in FIG.
It is fixed to the base plate 12 with screws 23 as shown in FIG.

On the upper side of the tank receiver 22, a wash water tank 26 made of resin is placed. This wash water tank 2
The lower portion 6 has a convex portion 28 that forms a part of the container, and is placed on the tank receiver 22 in a state where the convex portion 28 is fitted into the concave portion 20.

As shown in detail in FIGS. 2 and 3, the cleaning water tank 26 has plate-like and substantially triangular boss portions 32 formed in the lower front portion and the lower rear portion, respectively. Block-shaped boss portions 34 are formed on the upper portion and the upper portion of the rear surface.

Here, as shown in FIG. 3, the lower plate-like boss portion 32 is formed in a protruding shape with a part thereof being embedded in the recess 38 of the wash water tank 26. The upper block-shaped boss portion 34 is formed so as to be almost entirely embedded in the recessed portion 36 of the wash water tank 26. A fastening hole 30 is provided in each of these boss portions 32 and 34.

As shown in FIG. 3, the wash water tank 2
The lower boss portion 32 is fixed to the tank receiver 22 by means of a screw 24 inserted through the fastening hole 30.

As shown in FIG. 2, the wash water tank 2
A resin mounting plate 42 having a plurality of cylindrical boss portions 40 is integrally provided on the front surface of 6. A fixing hole is formed in the center of each of the boss portions 40, and the control circuit board 44 (see FIG. 1) is attached to the mounting plate 42 by screwing a screw into the fixing hole.
It is fixed to. That is, the control circuit board 44 is attached to the front surface of the wash water tank 26 via the attachment plate 42. Here, the control circuit board 44 constitutes a control unit in the local cleaning device.

In FIG. 1, reference numeral 46 denotes a resin tank cover, and the tank cover 46 is divided into a front cover 48 and a rear cover 50, each of which is the washing water tank 26, the tank receiver 22, and the base plate 12. It is arranged and fixed on the base plate 12 in a state of covering the above mechanical parts.

The front cover 48 and the rear cover 50 are
As shown in FIG. 3, the screws 24 are screwed into the bosses 34 at the upper part of the wash water tank 26, and are fastened to the wash water tank 26.

The front cover 48 has a toilet seat 52 and a toilet lid 5.
4 is integrally provided, and a lid 56 is put on the upper surface of the tank cover 46.

As shown in FIG. 1, the base plate 12 is provided with a rising portion 58 at its peripheral portion, and a fitting groove 60 as a fitting concave portion is provided on the outer surface side of the rising portion 58.
Are provided on the right side and the left side of the base plate 12, respectively. The fitting groove 60 has an opening 62 at the upper end.
It has an upward opening shape with a straight vertical surface extending downward to a substantially middle portion. The bottom of the fitting groove 60 is a stopper 64. The upper surface of the stopper portion 64 is an inclined surface 66 that moves upward as it goes to the both sides in the width direction from the central portion of the fitting groove 60. A slit 70 is formed at the bottom of the fitting groove 60, and a fastening hole 68 is provided in the rising portion 58 at the center of the fitting groove 60.

On the other hand, as shown in FIG. 1, a pair of fitting projections 72 are provided at the rear portion of the lower end of the side wall of the front cover 48 of the tank cover 46 and the front portion of the lower end of the side wall of the rear cover 50. Are provided so as to project inward.

The fitting convex portion 72 is provided at a position corresponding to the concave portion 74 for accommodating the head of the screw 24 formed on the outer surface side of the tank cover 46, and is formed in the fitting groove 60. A pair of inclined surfaces 76 having the same inclination angle as the inclined surfaces 66, a downward protrusion 78 formed between the inclined surfaces 76, a straight vertical surface 80 and a curved surface 82.
And have. A fastening hole 68 is provided at the center of the fitting protrusion 72.

The fitting projection 72 and the fitting groove 60 have substantially the same width as shown in FIG. 4, and the projection 78 of the fitting projection 72 has the slit 70 of the fitting groove 60. It is shaped and sized to fit exactly into.

When mounting the tank cover 46, as shown in FIG. 4 (I), the fitting projection 72 of the tank cover 46 is fitted into the fitting groove 60 formed in the base plate 12.
The tank cover 46 is set on the base plate 12 so that the tank cover 46 is fitted into the upper opening 62. At this time, the tank cover 46 is correctly positioned in the left-right direction by the guiding action of the inclined surfaces 66 and 76, and the vertical position is correctly defined by the abutting action of the stopper portion 64 and the fitting projection 72. Here, the fastening hole 6 in the tank cover 46
8 and the fastening hole 68 of the base plate 12 are correctly aligned. Then, by screwing the screw 24 into the fastening hole 68 from the outside of the tank cover 46, the tank cover 46 and the base plate 12 can be fastened and fixed to each other.

As described above, according to this embodiment, the fastening holes 68 in the base plate 12 and the tank cover 46 can be aligned with each other simply by fitting the fitting groove 60 and the fitting projection 72. Those base plates 1
2 and the tank cover 46 can be easily fastened and fixed with a fastener such as a screw 24. That is, according to this example, the tank cover 46 can be easily assembled.

Further, according to this embodiment, when the tank cover 46 is arranged on the base plate 12, the fitting convex portion 72 is fitted into the fitting groove 60 from the open portion at the upper end thereof. By simply setting 46, the fastening holes 68 provided in the base plate 12 and the tank cover 46 can be aligned with each other, and the assembling work of the tank cover 46 can be simplified.

The embodiment of the present invention has been described in detail above, but this is merely an example, and the present invention can be applied when fixing the tank cover and the base plate in a local cleaning apparatus of a form other than the above example. For example, the present invention can be configured in a form in which various changes are made without departing from the spirit of the present invention.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of a toilet bowl with a local cleaning device including a tank cover fixing structure according to an embodiment of the present invention.

FIG. 2 is a perspective view of the wash water tank in FIG.

FIG. 3 is an enlarged cross-sectional view showing a main part of the toilet bowl with a local cleaning device of FIGS. 1 and 2.

FIG. 4 is an enlarged view showing a main part of a structure for fixing a tank cover and a base plate shown in FIG.

[Explanation of symbols]

 10 Toilet bowl main body 12 Base plate 24 Screw 46 Tank cover 58 Standing part 60 Fitting groove 62 Opening 64 Stopper part 66,76 Inclined surface 68 Fastening hole 72 Fitting convex part

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Tsutomu Awada 5-1-1, Koiemotocho, Tokoname City, Aichi Prefecture Inax Co., Ltd.

Claims (4)

[Claims] 1. A base plate provided on a rear upper surface of a toilet bowl main body for storing toilet cleaning water, and a base plate placed on the upper surface, and a standing state on the base plate so as to cover the cleaning water tank. A fixing structure for a tank cover, in which one of the base plate and the tank cover is provided with a fitting concave portion, and the other is provided with a fitting convex portion to be fitted into the fitting concave portion at corresponding positions, respectively. In the position where the fitting concave portion and the fitting convex portion are formed, and in the fitted state thereof, a fastening hole that matches each other is provided, and the tank cover and the base plate are fastened and fixed by a fastener such as a screw in the fastening hole. The fixed structure of the tank cover, which is characterized by being made. 2. The tank according to claim 1, wherein a rising portion is provided on a peripheral edge portion of the base plate to form a fitting groove as the fitting recess having an upward opening shape on an outer surface side of the rising portion. A fitting convex portion is provided on the inner surface side so as to be fitted into the fitting groove downward from an opening portion above the fitting groove, and the fitting groove is projected at a bottom portion of the fitting groove toward the center in the width direction of the fitting groove. Provide a stopper that comes into contact with the protrusion from below,
A fixing structure for a tank cover, characterized in that the fitting groove and the fitting projection are positioned by contact between the stopper portion and the fitting projection. 3. The stopper according to claim 2,
The upper surface thereof is an inclined surface that moves upward as it goes to both sides in the width direction from the central portion of the fitting groove, and the lower surface of the fitting convex portion is a corresponding inclined surface. The fixed structure of the tank cover. 4. The tank according to claim 2 or 3, wherein the stopper portion in the fitting groove is a supporting portion that supports the weight of the tank cover, and the fitting convex portion is a supported portion. Fixed structure of the cover.