JP2779150B2 - Injection molding equipment for toilet bowl - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an injection molding apparatus for a toilet body that can easily be moved up and down.

[0002]

2. Description of the Related Art Conventionally, in a full-fledged porcelain toilet made of ceramics through which washing water flows, the front surface of the peripheral wall of the toilet body is located rearward of the front end of the toilet body including the toilet seat so as to easily move up. Since the human body is in the retracted position, the legs of the human body sitting in the body of the toilet should be moved or positioned in a natural state, even in the sitting posture or when standing or sitting. be able to.

On the other hand, it is generally called a portable toilet,
A portable toilet with a pot with a lid inside,
Alternatively, as shown in FIG. 6, a stool toilet mainly made of a synthetic resin, such as a so-called stationary Western style toilet seat, which is attached to a Japanese-style toilet, has a toilet body a mainly including a trunk peripheral wall b, and It is composed of a toilet seat c and a toilet lid d attached to the upper part.

[0004] The toilet body a, especially the body peripheral wall b, is generally formed by an injection molding method. As shown in FIG. 6, a front wall inclined outward from the upper end to the lower side is used. , A side wall and a rear wall. The reason is that if the wall surface is reversely inclined, it will be undercut when the mold is opened due to the mold structure, and molding will not be possible, but in addition, it is better to use an inclined wall that widens outward. ,
This is because there is stability when installed.

[0005]

However, as shown in FIG. 6, when the foot is the splayed sloping wall, the foot passes through the grounding point A of the foot of the human body and the center of gravity of the human body in a sitting state as shown in FIG. The distance D between the vertical line C and the point B where the vertical line C intersects becomes longer, and an extra force is required for the standing and sitting operation.

That is, since the impact on the toilet seat c becomes strong when sitting, it is necessary to perform an operation of supporting the hand by touching the wall against the indoor wall. When standing up, the body is directed forward and the center of gravity is greatly moved forward. It needs an action to move to.

[0007] In such a movement in the living room, even if it is a healthy body, the muscle may be damaged due to excessive force applied to the body. Particularly, as in the case of the physically handicapped, the elderly and the sick,
It was a heavy burden for care recipients with weak legs.

[0008] The present invention has been made in view of the above circumstances, without the undercut of the toilet body that can easily move up, or without the undercut that would complicate the mold. An object of the present invention is to provide an injection molding apparatus capable of performing injection molding.

[0009]

In order to achieve the above-mentioned object, the present invention provides a fixed mold and a movable mold for clamping the fixed mold to form a cavity corresponding to a toilet body. The fixed-side mold is formed of a mold, and the fixed-side mold has a recess capable of storing a leg of a human body when seated on the toilet body, and is different from the recess in the vertical direction or the vertical direction except for the recess. before being inclined in a direction wall, a substantially identical direction to the recessed portion and the vertical side walls and front wall,且
The inclination angle is formed so as to match the surface shape of the trunk peripheral wall composed of the rear wall that is inclined smaller than the inclination angle of the concave portion , and the movable mold has a front wall having substantially the same plate thickness,
The movable side mold is formed so as to conform to the back surface shape of the trunk peripheral wall including the side wall and the rear wall, and the movable mold is opened along an inclination angle within a range from the inclination angle of the recessed portion to the inclination angle of the rear wall. It is characterized by doing.

[0010]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 shows a toilet body 1 formed by an injection molding apparatus according to the present invention. The toilet body 1 has a concave portion 21a which is recessed inward, and Except for 21 a, a front wall 21 inclined outwardly downward from the upper end, a left and right side wall 22 inclined backward outwardly from the upper end, and a substantially frustum-shaped trunk peripheral wall 2 including a rear wall 23, A flange 3 is formed at the upper end of the body peripheral wall 2 and extends inward, and is integrally formed by an injection molding apparatus 10 described later. And the trunk wall 2
The concave portion 21a of the front wall 21 is formed on an inclined surface that is inclined rearward downward from the upper end in a vertical cross section,
And it is formed in a substantially arc-shaped curved surface whose cross-sectional area gradually increases downward from the upper end in the cross section. Also,
A shaft 4 is provided at a rear portion of the flange 3, and a toilet seat 5 and a toilet lid 6 are rotatably supported on the shaft 4 as a common shaft, and constitute a toilet together with the toilet body 1.

When such a toilet is used, as shown in FIG. 1, both when sitting and standing, the ankle almost contacts the lower edge of the recess 21a of the front wall 21 in the torso peripheral wall 2. do it. As a result, when in the posture of sitting on the toilet, the legs can be naturally placed at a reasonable position, and the lower edges of the front wall 21 project forward at both left and right ends as shown by broken lines. And
It is possible to ensure stability when installed.

At this time, when the concave portion 21a is formed as a linear inclined surface in a vertical section, the degree of inclination cannot be determined unconditionally, but the vertical line from the upper end of the center of the front wall 21 of the trunk peripheral wall 2 corresponds to the floor surface. It is preferable that the distance F from the point E, which intersects with the rearward, is such that the rear end of the ankle can be pulled rearward by about 50 mm. By the way, in the conventional toilet, it is 30 m ahead from the intersection E described above.
Since the ankle is located at about m, it can be located about 80 mm rearward as compared with the conventional toilet.

In order to mold such a toilet body 1 by an injection molding method, a molding apparatus 10 shown in FIG. 2 is used. The molding apparatus 10 includes a fixed mold 11 and a movable mold 12 that forms a cavity C corresponding to the toilet body 1 by clamping the fixed mold 11. That is, a molding surface conforming to the surface shape of the toilet body 1 is formed on the fixed mold 11, and the movable mold 1
2, a molding surface conforming to the rear surface shape of the toilet body 1 is formed. Specifically, on the inner front surface of the fixed mold 11, a bulging portion 1 that matches the surface of the concave portion 21 a of the front wall 21 is provided.
1a is formed, and a concave portion 11b is formed which conforms to the surface of the protruding portion except the concave portion 21a of the front wall 21 and is inclined downward and divergently from the upper end. On the rear surface, there are formed inclined portions 11c, which match the inclined surfaces of the side wall 22 and the rear wall 23, and are inclined downward and divergently from the upper end.
A fixed mold 11 is provided on the outer front surface of the movable mold 12.
Bulge 11a and recess 11 formed on the inner front surface of
12b and a protrusion 12b respectively corresponding to the fixed side mold 11 and the inclined portions 11c formed on the inner side surface and the inner rear surface of the fixed mold 11 on the outer side surfaces and the outer rear surface. Are formed, and each surface of the movable mold 12 and each corresponding surface of the fixed mold 11 are set to have substantially the same interval.

[0015] The movable-side by the inclination angle of the inclined portion 12c that is inclined outward rear surface of the movable mold 12 is set smaller than the inclination angle of the outer inclined portion 12 a which is formed on the front surface when the mold is opened 12 mold clamping or mold, as shown by the arrow, the inclination and the inclination angle of the inclined portion 12 a portion 12
It is possible to move along the inclination angle within the range of the inclination angle of c, and as a result, undercut can be prevented.

On the other hand, the toilet body 2 shown in FIG.
Has a bottom frame fitting rib 2x having a semi-circular cross section protruding outward on the lower peripheral edge of the bottom frame fitting rib 2x.
, A substantially U-shaped bottom frame 7 is screwed with mounting bolts b. Both ends of the bottom frame 7 protrude forward from the bottom frame fitting rib 2x, and this protruding portion is used for support. It is formed on the projections 71, 71. Then, the lower peripheral edge of the front wall 21 is at the left and right ends thereof.
It is almost vertical.

In FIG. 3, the toilet seat 5 is provided with a pot 8 with a lid.

Even in the case of the trunk peripheral wall 2 provided with the bottom frame fitting rib 2x, by preparing a fixed mold and a movable mold according to the surface shape and the back surface shape, respectively. , Can be injection molded.

Further, in the toilet body 1 shown in FIG. 4, the support projections 9, 9 are formed integrally with the toilet body 1 by an injection molding method.

In the toilet body 1 shown in FIG. 5, a recess 21a formed on the front wall 21 of the trunk wall 2 is
When the user sits down, the portions M, M corresponding to the positions of the legs of the human body have a further concave shape (rearward).

The recessed portion 21a formed in the front wall 21 of the trunk peripheral wall 2 of the toilet body 1 and capable of accommodating the legs of the human body has an arc-shaped cross section as shown in the above embodiment. The shape is not limited to a curved surface, and a shape depressed in a U-shape may be adopted.In addition, not only a linear inclined surface in a longitudinal section, for example, a parabolic inclined surface In short, it is only necessary that the recessed portion 21a be such that when it is in a posture of sitting on the toilet body 1, its legs can be naturally placed at a reasonable position.

[0022]

As described above, according to the present invention, a fixed mold and a movable mold that forms a cavity corresponding to the toilet body by clamping the fixed mold are provided. The side mold has a concave portion in which a leg of a human body can be stored when seated on the toilet body, and is inclined in a vertical direction or a direction different from the concave portion with respect to the vertical direction except for the concave portion. The wall, the side wall and the front wall have substantially the same direction with respect to the vertical direction , and the inclination angle is the inclination angle of the depression.
The movable side mold is formed so as to conform to the surface shape of the trunk peripheral wall composed of a rear wall inclined at a degree smaller than the degree , and the movable peripheral mold has a front wall, a side wall and a rear wall having substantially the same plate thickness. In addition, the movable mold is opened along the inclination angle within the range from the inclination angle of the recessed part to the inclination angle of the rear wall, so that the movable side mold is in a sitting position. A toilet body having a recessed portion capable of accommodating a leg portion of a human body at a certain time can be formed by an injection molding method without undercut or without undercut that complicates a mold.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing an embodiment of a toilet body molded by an injection molding apparatus of the present invention together with a use state thereof.

FIG. 2 is a schematic diagram for explaining an injection molding apparatus of the present invention.

FIG. 3 is a longitudinal sectional view and an exploded perspective view showing another embodiment of a toilet body.

FIG. 4 is a perspective view showing another embodiment of the toilet body.

FIG. 5 is a perspective view showing another embodiment of a toilet body.

FIG. 6 is a side view showing a conventional toilet body together with its use state.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Toilet main body 2 Body peripheral wall 21 Front wall 21a Depression 22 Side wall 23 Rear wall 3 Flange 5 Toilet seat 6 Toilet lid 71,9 Bearing projection 10 Injection molding apparatus 11 Fixed mold 11a Swelling part 11b Depression part 11c Sloping part 12 Movable mold 12a Depression 12b Projection 12c Inclined part

Claims (1)

(57) [Claims] 1. A fixed-side mold and a movable-side mold that forms a cavity corresponding to a toilet body by clamping the fixed-side mold, wherein the fixed-side mold is seated on the toilet body. A front wall, a side wall, and a front wall that are inclined in a vertical direction or a direction different from the vertical direction except for the concave portion, and the vertical portion and the concave portion of the front wall excluding the concave portion. Almost the same direction as the direction , and inclined
The angle is formed so as to match the surface shape of the trunk peripheral wall composed of the rear wall which is inclined smaller than the inclination angle of the recessed part , and the movable mold has a front wall, a side wall and a side wall having substantially the same plate thickness. The movable side mold is formed so as to conform to the back surface shape of the trunk peripheral wall composed of the rear wall, and the movable mold is opened along an inclination angle within a range from the inclination angle of the concave portion to the inclination angle of the rear wall. An injection molding apparatus for a toilet body.