JPH0136480Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial field of application> The invention is based on a system in which horizontal hinge holes are formed on the same axis from the pair of left and right fittings fixed to the toilet bowl to the mounting pieces of the toilet seat and toilet lid. The present invention relates to a toilet seat mounting device in which a toilet seat and a toilet lid are rotatably supported on a toilet bowl by opening a hole through the hole and inserting two hinge shafts into the hinge holes in a detachable manner.

<Prior art> Conventionally, this type of toilet seat mounting device
As disclosed in Publication No. 32541, the outer end of the hinge shaft has a head that projects outward, and the inner end has a bifurcated enlarged part that has inclined parts in the insertion direction and the withdrawal direction. However, by inserting the enlarged portion into the hinge hole, the pull-out side inclined portion locks onto the inner end step portion of the collar fitted into the hinge hole, thereby preventing the collar from coming off.

<Problems to be solved by the invention> However, in the above-mentioned conventional toilet seat mounting device, the hinge shaft is easy to pull out, and especially when used in a public restroom, the hinge shaft can be pulled out and lost due to mischief. In order to prevent this problem, if the diameter of the enlarged portion is increased, there is a problem that it becomes difficult to insert the device.

In view of such conventional circumstances, the present invention aims to reduce the resistance when inserting the hinge shaft and increase the resistance when pulling it out.

<Means for Solving the Problems> The technical means taken by the present invention to solve the above problems is to form the hinge shaft into a cylindrical shape excluding the head that protrudes outward from the hinge hole, and At the same time, a protruding elastic part is formed to press against the inner circumferential surface of the hinge hole, and a locking step is provided on the side adjacent to the elastic part of the fitting body, the mounting piece of the toilet seat, or the mounting piece of the toilet lid, and the periphery of the hinge hole. A concave portion is formed continuously, and a protrusion whose elastic portion side is inclined is provided at a position corresponding to the locking stepped portion of the hinge shaft. The feature is that the part is formed so that it can appear and disappear at will.

<Operation> According to the above-mentioned technical means, when the hinge shaft is inserted into the hinge hole from the elastic part side, the slope of the protrusion comes into contact with the entrance edge of the hinge hole, and the protrusion touches the slope of the slope. The protrusion gradually deforms inward from the shaft and is pressurized into the hinge hole, and when this protrusion reaches the locking step, it restores itself and protrudes, engaging with the locking step to prevent it from coming off. It is.

<Example> Hereinafter, an example of the present invention will be described based on the drawings.

In this embodiment, as shown in Fig. 1, a toilet seat D and a toilet lid E are arranged between a pair of fixture bodies A and A,
Two hinge shafts B, B with these inserted from the outside
They are each supported by a shaft.

The fixture body A has a hinge hole _a1 horizontally opened in the upper part through which the hinge shaft B is inserted, a locking step part 1 is recessed in the inner periphery of the hinge hole _a1 , and a screw part is provided in the lower part. A ₂ is formed, and this threaded part A ₂ is inserted into the toilet seat mounting hole C ₂ cut vertically through the rear upper wall C ₁ of the toilet bowl C, and is fixed by screwing it from below with a nut 6. .

The toilet seat D has a pair of mounting pieces d ₂ , d ₂ protruding from its base end, and these mounting pieces d ₂ , d ₂ are provided coaxially with the hinge hole a ₁ of the fitting main body A. Open each hinge hole _d1 .

Similar to the toilet seat D, the toilet lid E has a mounting piece e ₂ protruding from its base end with a hinge e ₁ pierced, and in this embodiment, the mounting piece e ₂ is attached to the left and right mounting pieces of the toilet seat D. part d ₂ ,
Place it between d ₂ .

The hinge shaft B is formed into a cylindrical shape from an elastic material, for example, a synthetic resin such as polyacetal or polypropylene, and has an elastic portion b ₁ inserted into the hinge hole e ₁ opened in the toilet lid E at one end thereof. At the same time, the midway portion forms a projection b ₂ that passes through the hinge hole d ₁ of the toilet seat D and engages with a locking step 1 recessed on the inner periphery of the hinge hole of the fixture body A.

The elastic part b ₁ has an outer diameter larger than the inner diameter of the hinge hole e ₁ of the toilet lid E, and a cut ₂ having a cross-shaped cross section in the axial direction of the hinge shaft B. with inserted into hinge hole e ₁ ,
It is designed to come into pressure contact with the inner circumferential surface of the hinge hole _e1 , and in this embodiment, the shape of the notch 2 is cross-shaped in cross section, but the shape is not limited.

Further, the elastic portion _b1 forms inclined surfaces 3 and 4 at the front and rear in the axial direction, respectively, to facilitate insertion and removal of the hinge shaft B.

The protrusion b ₂ has an upper surface formed in a chevron shape in the axial direction of the hinge shaft B, and a planar U-shaped notch 5 is cut through the circumferential surface of the protrusion b 2 so that the protrusion b ₂ is vertically oriented. It is configured so that it can appear at will.

Therefore, the hinge shaft B is connected to the hinge hole of the fixture body A.
When inserted into a ₁ , the protrusion b ₂ is locked to the locking step 1, and the hinge shaft B does not come off under normal conditions.

Incidentally, the protrusion _b2 may be configured to be retractable by a spring or a leaf spring other than the one shown in the drawings.

On the other hand, the other end of the hinge shaft B projects outward from the hinge hole a ₁ of the fixture body A, and by forming a head b ₃ with a larger diameter in the projection, the hinge shaft B can be pulled out. I'm making it easy.

Next, FIGS. 5 and 6 show other embodiments, and the one shown in FIG. 5 has a toilet lid E on the outside of the fixture body A.
At the same time _, place the mounting piece e ₂ of the toilet seat D inside the fixture body A, and attach the locking step 1 that engages with the protrusion b ₂ of the hinge shaft B to the toilet lid. E hinge hole
It is recessed on the inner periphery of e ₁ .

In addition, in the one in Fig. 6, the mounting piece d ₂ of the toilet seat D and the mounting piece e ₂ of the toilet lid E are arranged in sequence on the outside of the fixture body A, and these hinge holes a ₁ , d ₁ , e ₂ to hinge axis B
is inserted from the inside, and a locking step 1 is recessed in the outer periphery of the hinge hole _a1 of the fixture body A.

Note that the arrangement of the fixture body A, the toilet seat D, and the toilet lid E is not limited to the above-described embodiment, and other arrangements may be made as desired, and the position of the locking step 1 is not limited either.

Furthermore, the shape of the head _b3 of the hinge shaft B is not limited to one that can be illustrated; for example, the shape of the head b3 as shown in FIG.
The inner end of the head b ₃ can be formed into a step shape to make it easier to pick up, or the inner end of the head b ₃ can be sloped in a tapered shape so that it can be pulled out using a tool 7 such as a screwdriver. It is also optional.

<Effects of the Invention> Since the present invention has the above configuration, it has the following advantages.

When the hinge shaft is inserted into the hinge hole from the elastic part side, the inclined surface of the protrusion comes into contact with the entrance edge of the hinge hole, and the protrusion gradually deforms inward from the lower part of the inclined surface to close the hinge hole. When the protrusion reaches the locking step, it restores its shape and protrudes, engaging with the locking step to prevent it from coming off, reducing the resistance when inserting the hinge shaft and increasing the resistance when pulling it out. can do.

Therefore, compared to conventional ones, the hinge shaft is easier to insert and more difficult to pull out, and is less likely to be lost even when used in a public restroom or the like.

A locking step that prevents the hinge shaft from coming off is recessed on the fitting body or on the surface adjacent to the elastic part of the toilet seat or toilet lid, so it is different from the conventional one in which a collar is fitted into the hinge hole to prevent the hinge shaft from coming off. Compared to this, the number of parts is reduced and costs can be reduced.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway rear view of a toilet seat mounting device showing an embodiment of the present invention, Fig. 2 is a sectional view taken along the - line in Fig. 1, and Fig. 3 is a hinge shaft inserted. 4 is an enlarged plan view of the hinge shaft, FIGS. 5 and 6 are longitudinal sectional rear views showing other embodiments, and FIGS. 7 and 8 are modified examples of the hinge shaft. FIG. A...Fixture body, _a1 ...Hinge hole, B...Hinge shaft, _b1 ...Elastic part, b2...Protrusion, _{b3 ...} Head, C...Toilet bowl, D...Toilet seat , d ₁ ... hinge hole,
d ₂ ... Mounting piece, E ... Toilet lid, e ₁ ... Hinge hole,
e ₂ ... Mounting piece part, 1... Locking step part.

Claims (1)

[Scope of utility model registration request] Horizontal hinge holes are drilled uniaxially from the pair of left and right fittings that are fixed to the toilet bowl to the mounting pieces of the toilet seat and toilet lid, respectively, and two hinge shafts can be attached and detached to these hinge holes. In a toilet seat mounting device in which a toilet seat and a toilet lid are rotatably supported on a toilet bowl through insertion, the hinge shaft is formed into a cylindrical shape except for the head projecting outward from the hinge hole, and the hinge shaft has a hinge hole at the tip thereof. An elastic part that comes into contact with the inner circumferential surface is formed in a protruding manner, and a locking step part is provided on a surface adjacent to the elastic part of the fixture body, the mounting piece of the toilet seat, or the mounting piece of the toilet lid so as to be continuous with the periphery of the hinge hole. The hinge shaft is recessed, and a protrusion whose elastic part side is inclined is provided at a position corresponding to the locking stepped part of the hinge shaft, and the circumference excluding the inclined surface side is drilled through in a U-shape to allow the protrusion to emerge and retract. A toilet seat mounting device characterized by being freely formed.