JPS63105722A - Apparatus for opening and closing lid of western style toilet bowl - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Application of the Invention) The present invention relates to an opening/closing device for a toilet seat, a toilet lid, etc. of a Western-style toilet bowl.

(Background technology) As shown in Figure 1, the self-weight moment of the toilet seat and lid of a Western-style toilet bowl decreases as it is opened.
Therefore, if you inadvertently release your hand while opening or closing the toilet, the toilet seat or lid may fall suddenly, making a loud noise, or causing your hand to get caught.
Or, we often experience toilet seats, toilet lids, etc. breaking due to #r strikes.

Moreover, recently, toilet seats with electrical wiring for heat retention have been developed, and it is desirable to avoid sudden falls of the toilet seat in order to protect the electrical wiring.

Therefore, in order to prevent the toilet seat, toilet lid, etc. from falling suddenly, a torsion coil spring was developed that biases the toilet seat, toilet lid, etc. in the opening direction. As shown in Figure 2, the rotational torque of this torsion coil spring decreases linearly as the toilet lid, etc. is opened, but since it pushes the toilet lid, etc. in the J direction, the rotational torque of the torsion coil spring decreases rapidly. This prevented a serious fall.

However, as can be seen from Figure 2, if only a torsion coil spring is used, if the torque is increased a little, a so-called floating phenomenon will occur when the toilet lid is closed, and the toilet seat, etc. will suddenly bounce from a - foot angle or higher. There is a problem with it being lifted up,
On the other hand, if the torque is weakened, there is a problem in that the ability to prevent sudden drops from the toilet lid or the like is reduced.

(Technical Problem) The technical problem of the present invention is that it is possible to prevent the toilet lid from floating when opened and from rising at an angle of a certain amount, and also to prevent it from falling suddenly. It is an object of the present invention to provide an opening/closing device for a toilet lid of a Western-style toilet bowl, etc., which can be opened/closed with ease.

(Technical Means) In order to achieve the above-mentioned technical problem, the present invention provides a torsion coil spring that winds around a hinge pin that rotates together with the toilet seat, toilet lid, etc. and urges the toilet lid, etc. in the opening direction. Furthermore, a compression coil spring is provided that comes into contact with a cam member that rotates together with the hinge pin, and the rotational torque of the toilet lid, etc. is controlled by the combined force of the two springs.

(Example) According to the drawings, in FIG. 3, a support case body 3 is installed between the water tank 2 attached to the toilet main body l, the toilet lid 4 and the toilet seat 5, and this support Attachment parts 3 are curved to sandwich the rear part of the toilet seat 5, etc. on both sides of the case body 3.
a and 3b are provided. One of these, for example, the left attachment part 3a is for the toilet lid 4, and the right attachment part 3b
is for the toilet seat 5, and inside each of the mounting parts 3a and 3b, as shown in FIG. It is fixed with screws while being inserted.

The interconnection relationship between the device case 6.7, the toilet M4, and the toilet seat 5 is shown in FIG. 4a
is fixed thereto, and the portion extending to the right through the attachment portion 4a passes through a shaft hole 5b provided in the attachment portion 5a of the first toilet seat 5, and locks the toilet seat 5 in a rotatable manner.

On the other hand, the hinge pin 9 protruding from the right side device case 7 rotatably passes through a shaft hole 4b provided in the attachment part 4a of the toilet lid 4, and is fixed to the attachment part 5a of the toilet seat 5.

Therefore, when the toilet lid 4 is opened and closed, the hinge pin 8 rotates together, but the hinge pin 9 does not rotate, and when the toilet seat 5 is opened and closed, the hinge pin 9 rotates together, but the hinge pin 8 does not rotate together. ing.

The dead weight moment of the toilet lid 4 when it is closed is, for example, 15 Kga c+s as shown in FIG.
While it is opened to 00', a self-weight moment occurs in the opposite direction.

Next, since the internal structures of the device cases 6 and 7 are the same, one of them will be explained. In FIGS. 5 to 8, the hinge pin 8 has a deformed shaft portion 8a having a substantially rectangular cross section. It consists of a shaft portion and a camshaft lO in which the deformed shaft portion 8a is fitted into a deformation hole provided in the axial direction of the camshaft lO.
, 6b is rotatably mounted on an axis. A cam convex portion 10b and a stopper portion 10c are provided on one side of the camshaft 10 in a radial direction with different protruding directions. A torsion coil spring 11 is wound around the camshaft 10, one end 11a of which is fitted into a locking hole 8c provided in the side plate Bb of the device case 6, and the other end 11b is a cam convex! They are respectively locked in locking holes 10d provided in the % lOb. The maximum torque of this torsion coil spring 11 is when the toilet lid 4 is closed, and as shown in FIG. 9, the maximum torque is approximately 13. This torque decreases linearly as the toilet lid 4 is opened.
It becomes 0 at an opening angle of 90°.

A spring housing part 12 is provided at the lower part of one side of the device case 6, facing the cam protrusion tab provided on the camshaft lO, and a slider 13 is slidably housed in this housing part 12. . Between this slider 13 and the inner bottom part 12a of the spring storage part 12.

A compression coil spring 14 is elastically installed, and the top of the slider 13 is in pressure contact with the cam protrusion tab. Due to the protruding position, shape, etc. of the cam convex portion 10b, the compression coil spring 14 has a force that is applied in the direction near the opening angle 150 of the toilet lid 4, as shown in FIG. The camshaft 10 is not urged to rotate in either direction, but at an angle smaller than this, it is urged in the direction of closing the lid, and at an angle larger than this, it is urged in the direction of opening the lid, and the maximum torque is 3. 7
kg o am and an opening angle of approximately 60″.

The deformed shaft portion 8a of the hinge pin 8, which is partially fixed to the attachment portion 4a of the toilet lid 4, is fitted into the deformed hole 10a of the camshaft 10.

Now, when the toilet lid 4 is closed, the composite torque curve shown by the two springs, the torsion coil spring 11 and the compression coil spring 14, is the 9th
As shown in the figure, the weight is 12kg*cra, which is considerably lower than the dead weight moment of the toilet lid 4, which is 15kg@cm, so the toilet lid 4 can maintain a stable closed state and resist external vibrations. There is no fear that the so-called floating phenomenon will occur due to shock or impact.

When you hold the end of the toilet lid 4 in your hand and start opening it, the combined torque that moves in the direction to cancel this moment is smaller than the own weight moment of the toilet lid 4, so the toilet M4 feels a little heavy and moves around the hinge pin 8 as a fulcrum. Rotates open. However, this weight is
Since the difference between the dead weight moment of the toilet lid 4 and the resultant torque is 3 kg @cta as shown in Fig. 9, the toilet lid 4
I don't feel the original weight.

The opened toilet lid 4 has an opening angle of about 50'', and as shown in FIG. 9, its own weight moment and the resultant torque are perfectly balanced, and after that, the toilet lid 4 is opened with the resultant torque slightly exceeding it. However, this difference is not very large up to an opening angle of 90°, so even if you release your hand, the toilet lid 4 will not open automatically and will remain stopped at any opening angle in a so-called free stop state. is possible.

From the opening angle of 80 degrees, the toilet lid 4 receives a weak rotational moment in the opposite direction due to its own weight, and the rotational torque of the torsion coil spring 11 becomes O, and only the rotational torque of the compression coil spring 14 gradually weakens until the toilet opens. Since the rotational moment of M4 acts in the same direction, the stool M4 is opened automatically and quietly, not abruptly, and the stow/bar 10c protrudes into the device case 6 as shown in FIG. It stops by coming into contact with the provided stopper portion 6d, and this stopped state is stably maintained.

Next, when closing the opened toilet lid 4, when you put your hand on the edge of the toilet lid and pull it in the direction of closing the lid, the stool M4 initially encounters some resistance as seen in FIG. At an opening angle of 7° or less, the toilet lid closes smoothly with the free stop state 7E, and at an opening angle of approximately 506° or less, the weight moment of the stool M4 gradually begins to exceed the resultant torque, so even if you release your hand, the toilet lid will close smoothly. closes quietly under its own weight. At this time as well, the difference between the combined torque and the dead weight moment of the toilet lid 4 does not suddenly increase as shown in FIG. 9, so the toilet lid 4 is never closed suddenly. As described above, the closed stool M4 maintains a stable closed state, and the so-called floating phenomenon does not occur due to external vibrations or shocks.

Figure 1O shows the self-weight moment of the toilet seat 5 with respect to the rotational angle change, the torsion coil spring and compression coil spring (not shown) housed in the device case 7 for the toilet seat 5, and the combined torque of these springs. This shows a torque curve, and the reason why the curve diagram is different from that in FIG. 9 is that the toilet seat 5 is different from the toilet lid 4 in weight, shape, mounting form, etc. In the state shown in FIG. 6, the hinge pin 8.
This is because it will be located below a line extending horizontally from the axis of No. 9.

However, since the basic technical idea is exactly the same in the case of a single toilet seat as in the case of a toilet lid, detailed explanation will be omitted.

Next, in other embodiments, the hinge pin may be configured integrally with the camshaft, and the installation position of the combination coil spring, the protrusion position and shape of the cam convex part, or the shape of the slider, etc. It is not limited to the examples.

These can be changed in design or replaced by various known means without departing from the technical idea of the present invention.

(effect) According to the present invention as described above in detail.

Basically, a torsion coil spring can be used to control the rotational torque of a toilet lid, etc., so that it can be opened and closed without making you feel its original weight. Lifting phenomenon when the lid is closed, sudden springing up when the UI 4 lid angle is exceeded, etc.
This can be prevented by using a combination spring and an uncoiled spring, and furthermore, the free stop range can be expanded to allow smoother opening and closing operations.

[Brief explanation of the drawing]

The drawings show an embodiment of the invention, and FIG. : A graph showing the dead weight moment with respect to changes in the rotation angle of i, etc., Figure 2 is a graph showing the dead weight moment with respect to changes in the rotation angle of the toilet lid, etc., and the spring characteristics of the torsion coil spring, and Figure 3 is a graph showing the spring characteristics of the torsion coil spring. A perspective view of a Western-style toilet bowl, Figure +4 is an enlarged front cross-sectional view of the part al'll in Figure 3, Figure 5 is a front cross-sectional view of the device case with toilet a etc. closed, and Figure 6 is: Figure 55. 7 is a sectional view of the same side as in Fig. 6 with the toilet lid open, and Fig. 8 is a sectional view taken along the line A-A'.
A cross-sectional view taken along the line B-B' in the figure, Figure 9 is a graph showing the dead weight moment and the spring characteristics of the spring with respect to the change in the rotation angle of the toilet lid, and Figure 1θ is a graph showing the dead weight moment and the spring characteristics with respect to the change in the rotation angle of the toilet seat. It is a graph showing characteristics. ! ...-Toilet bowl body 4-・ΦToilet lid 5...Toilet seat 6,7・◆・Device case 8.9
#-・-Hinge pin lO・#-Camshaft 10aIIΦ・Deformation hole 10b・
Insect cam protrusion + 1-φ-φ torsion coil spring 13, fist, slider

Claims (3)

[Claims] (1) A torsion coil spring is provided that is wound around a hinge pin that rotates together with the toilet seat, toilet lid, etc. to bias the toilet lid in the opening direction, and a compression coil spring that comes into contact with a cam member that rotates together with the hinge pin is provided. An opening/closing device for a toilet lid, etc. of a Western-style toilet, characterized in that the rotating torque of the toilet lid, etc. is controlled by the combined force of the two springs. (2) The hinge pin is comprised of a shaft portion having a deformed shaft portion, and a camshaft in which the deformed shaft portion is fitted into a deformed hole provided in the axial direction of the central portion of the hinge pin. An opening/closing device for a toilet lid of a Western-style toilet according to claim 1. (3) The positional relationship between the compression coil spring and the cam member is determined such that the compression coil spring and the cam member are biased in the closing direction when the toilet lid or the like is closed. The opening/closing device for the toilet lid, etc. of the Western-style toilet mentioned above.