JPH073997Y2 - Toilet seat fall prevention device - Google Patents

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial field of application) The present invention relates to a toilet seat fall prevention device, in which a toilet seat that is in an upright state during men's small use falls carelessly toward the front. Is to prevent.

(Prior Art) Conventionally, as for this type of apparatus, the technology disclosed in Japanese Utility Model Laid-Open No. 61-158291 is known. As shown in FIG. 6, this product is provided with a projection 12 on the outer periphery of a hinge portion 11 of a toilet seat, and an elastic engagement piece 15 having a projection 14 is attached to a box 13 of the main body. Both of them have a height that laps when they are combined at a certain angle.

In this configuration, when the toilet seat rotates and reaches a certain angle near the upright position, the protrusion 12 of the hinge portion 11 gets over the protrusion 14 of the elastic engagement piece 15. In this case, when the protrusion 12 passes over the protrusion 14 and tries to return to the original position, the force for overcoming the protrusion 14 is larger than the rotational torque due to the weight of the toilet seat (the force that tends to fall toward you). Further, the elastic engagement piece 15 has the projection 12
It is made of a softer material. From this, the self-sustaining of the toilet seat is measured at the contact position of both the projections 12 and 14.

(Problems to be Solved by the Invention) However, the above-mentioned prior art has the following inconvenience because it has a self-supporting toilet seat only on one straight line (constant angle) by both projections of the toilet seat and the box.

(1) When the toilet seat is tilted backward more than the angle at which the toilet seat and the projection of the box hit and the toilet seat is tilted rearward and the toilet seat tries to return to the front, until the toilet seat is tilted backward and returns to the self-supporting position. Because the toilet seat moves toward you by the angle, it feels like backlash and the feeling is bad.

(1) In the case of (1) above, inertial force of movement other than rotation torque due to the weight of the toilet seat is added while the toilet seat is returned to the position where the toilet seat is tilted backward and hits the protrusion for self-supporting May be greater than force. Therefore, it is necessary to gently separate the toilet seat when the vehicle gets over the protrusion so as not to apply inertial force.

(3) When the toilet seat is opened, the load to open the toilet seat increases only when the toilet seat projection gets over the box projection, and the feeling is poor.

Further, since the uneven portion is exposed to the outside and moves, it is not preferable in appearance, and cleaning when it becomes dirty is difficult to perform and is not hygienic. In the present invention, the above defects are eliminated.

[Constitution of device]

(Means for Solving the Problems) The technical means taken in the present invention for solving the above technical problems are provided on one of a hinge pin or a hinge pin receiver provided to integrally rotate on a toilet seat and a box of a main body. A fixed hinge pin or the other of the hinge pin receivers, the hinge pin being rotatably supported by the hinge pin receiver so that the toilet seat can be opened or closed relative to the main body A large diameter portion formed on the outer circumference of the hinge pin and a small diameter portion formed on the inner circumference of the hinge pin receiver and engaged with the large diameter portion with an appropriate close fitting in an open state with respect to the main body of the toilet seat. It has a part.

(Operation) When the toilet seat in the closed state is rotated in the opening direction, the hinge pin or the hinge pin receiver rotates integrally with the toilet seat, and when a certain angle (almost upright state) is reached, the enlarged shape portion of the hinge pin causes the hinge pin to move. The sliding contact portion of the receiver is expanded and a rotation resistance is generated there. Therefore, even if the toilet seat releases the hand, the toilet seat maintains the self-supporting state at the position.

Further, if a force exceeding the resistance force is applied in the toilet seat direction, the toilet seat returns to the original closed position.

(Embodiment) An embodiment of the present invention will be described with reference to the attached FIGS.

In FIG. 1, 1 is a toilet seat, 2 is a toilet lid, both of which are rotatably attached to a box 4 of the toilet body by a hinge pin 3, and the toilet seat 1 and the hinge pin 3 rotate integrally. . A hinge pin receiver 5 having elasticity is fixed to the box 4 at right angles to the axis of the hinge pin 3.

As seen in FIGS. 2 and 3, two parallel flat mating opposed flat surfaces indicated by symbols A and B are provided in the respective outer peripheral portions of the hinge pin 3 and the inner peripheral portion of the hinge pin receiver 5.

Further, the through hole 2a of the toilet lid 2 shown in FIG. 4 is larger than the outer edge of the hinge pin 3 (D dimension in FIG. 2), and the toilet lid 2
Enables rotation regardless of the rotation of the hinge pin 3 (that is, the toilet seat). In the hole through which the hinge pin 3 on the box 4 side penetrates, the receiver 5 is assembled for the above-mentioned purpose, and this assembly portion is fixed by the matching of the parallel planes facing each other as shown by the symbol C in FIG. There is. Thus, the hinge pin receiver 5
2 is larger than the plane width A of the hinge pin 3 and slightly smaller than the outer edge dimension D of the hinge pin 3. Further, since the vertical length dimension E of the hinge pin receiver 5 is larger than the outer edge dimension D of the hinge pin, even when the hinge pin 3 moves up and down, the load is not directly received.

As shown in FIG. 4, a constricted portion 3a having a diameter smaller than the outer peripheral flat surface width (A) is provided on the tip end side of the hinge pin 3. Further, two arm portions 5a extend on the inner surface of the box of the hinge pin receiver 5, and the gap between the tips of the arm portions is smaller than the outer peripheral 2 plane width A of the hinge pin and larger than the diameter of the constricted portion 3a.

Therefore, when the hinge pin 3 is inserted into the hinge pin receiver 5, the tip of the hinge pin receiving arm 5a fits into the constricted portion 3a of the hinge pin, and the hinge pin 3 is fixed in the axial direction. Also, the taper angle of the pin tip is small,
Since the taper angle toward 3a is large, the load during assembly and insertion is small, and on the contrary, the pull-out load is large.

In the above configuration, in the second illustrated state (toilet seat closed), the hinge pin 3 is free from the upper, lower, left and right sides with respect to the hinge pin receiver 5.

As shown in FIG. 3, when the toilet seat 1 is lifted and rotated to the vicinity of the upright position, the hinge pin 3 is also rotated, and its outer edge portion (D) fits into the two-plane width (B) of the hinge pin receiver 5,
It is fixed by friction resistance.

Since this fixing force is larger than the rotation torque due to the weight of the toilet seat 1, the box 4 and the toilet seat 1 are fixed by fixing the hinge pin 3 and the hinge pin receiver 5, and the toilet seat maintains its self-standing property.

This is the same as when the hinge pin receiver is integrally provided on the toilet seat to prevent the hinge pin from rotating with respect to the box.

In addition, the through hole 2a of the toilet lid 2 is formed into a hole shape (B
If it is the same as × E), it is also possible to leave the toilet lid open and self-supporting with the toilet seat closed.

In the description of this embodiment, the hinge pin receiving side has elasticity, but this may be the hinge pin side. Both may be elastic bodies.

[Effect of device]

(1) Unlike the conventional type, the load does not change in the process of opening the toilet seat, and there is no disturbance in the operation leading to independence, so there is no feeling of discomfort such as feeling.

(2) No springs, cams, etc. are used, the structure is simple, the number of parts is small, and the appearance is excellent.

(3) The hinge pin can be easily attached and detached, and the assembling property is improved as a whole.

(4) The concave-convex body does not appear outside and is easy to clean and hygienic.

[Brief description of drawings]

FIG. 1 is an explanatory view of the arrangement of the device of the present invention, and FIGS. 2 and 3 are
Side sectional view of the hinge pin portion when the toilet seat is closed and opened,
4 and 5 are top and front sectional views of the toilet seat hinge portion, and FIG. 6 is an explanatory view of the prior art. 1 ... Toilet seat, 2 ... Toilet lid, 3 ... Hinge pin, 4 ... Box, 5 ... Hinge pin receiver.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (56) References: 1-108197 (JP, U): 1-90495 (JP, U): 63-175999 (JP, U): 58- 61095 (JP, U) Actual public Sho 62-44718 (JP, Y2) Actual public Sho 63-26077 (JP, Y2)

Claims (2)

[Scope of utility model registration request] 1. A toilet seat having one of a hinge pin or a hinge pin receiver provided so as to rotate integrally with the toilet seat, and a hinge pin or the other of the hinge pin receiver fixed to a box of a main body, wherein the hinge pin rotates relative to the hinge pin receiver. And a large diameter portion formed on the outer periphery of the hinge pin and an inner periphery of the hinge pin receiver, which is supported so that the toilet seat can be opened or closed with respect to the main body. And a small diameter portion that is formed on the large diameter portion and is engaged with the small diameter portion in a state where the toilet seat is opened with respect to the main body. 2. The toilet seat fall prevention device according to claim 1, wherein at least one of the hinge pin and the hinge pin receiver is made of an elastic body.