JP2000093350A - Opening and closing device for seat and lid of western- style toilet bowl - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an opening and closing device that increases the effectiveness of a damper ring even in an opening and closing device of a separate type. SOLUTION: Rotating shafts 4 are projected beyond hinge cases in the direction opposite to the direction of facing each other of hinge cases 1, 1' and the facing sides of the hinge cases are interconnected by a connecting member. In the device comprising rotating shafts provided rotatably in the hinge cases, fixed cams 9 fixed to partitions provided in the hinge cases while inserting rotatably in the centers of the rotating shafts, rotating sliding cams 8 inserted into and engaged with the centers of the rotating shafts and rotating with the rotating shafts but provided in opposition to the fixed cams axially slidably, elastic means wound around the rotating shafts and pressing the rotating sliding cams to the fixed cams, damper rings 11 contacting the inside peripheries of the hinge cases under pressure the peripheries of the rotating and sliding cams, and viscous grease is applied to the outer peripheries of the damper rings 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an opening / closing device suitable for opening / closing a toilet seat or a lid of a Western-style toilet with respect to a toilet body.

[0002]

2. Description of the Related Art Conventionally, as a device for opening and closing a toilet seat and a toilet lid of a Western-style toilet bowl, mounting portions extending from a hinge case are fixed to right and left of a rear upper end of a toilet body of the Western-style toilet bowl by fixing bolts, and a pair of independent independent bolts are provided. A separate type switchgear is known. In this separate type opening / closing device, a cam mechanism having a compression spring is applied to a rotating shaft rotatably mounted on a hinge case, or a rotating torque in a specific rotation direction of the rotating shaft is canceled. Known are those using a torsion spring acting in the direction and those using a fluid damper acting on the rotating shaft.

[0003] Further, the present invention is not limited to the above-mentioned separate type opening / closing device. However, in order to control the rotational moment of an opening / closing body such as a toilet seat or a toilet lid, and to perform soft closing, a hinge case is provided. A rotating shaft rotatably provided, a fixed cam fixed in the rotating shaft while inserting the rotating shaft into the center, and a rotating shaft slidable while inserting the rotating shaft into the center and engaging. And a resilient means for pressing the rotary sliding cam in the direction of the fixed cam. The rotary shaft is provided on the rotary shaft to control the rotation of the rotary shaft. A damper ring fitted and pressed against the inner periphery of the hinge case; and a viscous oil applied between the outer periphery of the damper ring and the inside of the hinge case. Damper means et consisting switchgear toilet seat and toilet lid of toilet made by acting on the rotation shaft has been proposed by this applicant.

[0004]

Among the above-mentioned known techniques, a separate type opening / closing device is characterized in that when a toilet seat or a toilet lid supported by a rotating shaft is twisted right and left at the time of opening and closing, a rotational moment around a fixing bolt is provided. Occurs,
The rotating shaft is easy to bend, which affects the falling feeling of the toilet seat and the toilet lid, and there is a problem that the designed falling feeling cannot be obtained.

[0005] Further, the above-mentioned prior application in which a damper ring is fitted around the rotating shaft and pressed against the inner periphery of the hinge case to control the rotating torque of the rotating shaft,
Because the effect of the damper is linear, the effect of the rubber damper just before the toilet seat or toilet lid closes cannot be increased, and the damper is used to prevent the rubber ring from sticking when left for a long time. Due to the necessity of arranging the ring obliquely, there is a problem that the width of the damper ring must not be widened.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a Western style toilet seat opening / closing device which is designed so that the rotating shaft does not bend when the toilet seat or opening / closing cover is twisted right and left even in a separate type opening / closing device. To offer.

A second object of the present invention is to increase the effectiveness of the damper ring immediately before opening and closing the toilet seat and the toilet lid when the damper ring is used as the damper means.
An object of the present invention is to provide a device for opening and closing a toilet seat and a toilet lid of a Western style toilet.

[0008]

SUMMARY OF THE INVENTION In order to achieve the above-mentioned object, the present invention relates to a separate type opening / closing device in which a pair of left and right parts are separately mounted on a rear upper end of a Western style toilet body, and a hinge case of each of the opening / closing devices. A rotatable shaft provided with means for controlling its rotational torque is rotatably inserted therein, wherein the rotatable shaft is projected from the hinge case in a direction opposite to a direction in which the rotatable shafts face each other, and each of the hinge cases is Are connected by a connecting member.

In this case, the connecting member is a connecting pipe, and the opposite sides of the hinge case can be inserted and fixed to both ends of the connecting pipe. The present invention also provides a rotating shaft rotatably provided in the hinge case. A fixed cam fixed to a partition wall provided in the hinge case while inserting the rotating shaft into the center, and slidably rotating with the rotating shaft while inserting the rotating shaft into the center. And a resilient means for pressing the rotary sliding cam in the direction of the fixed cam, wherein a rubber ring is pressed against the outer circumference of the rotary sliding cam against the inner circumference of the hinge case. And a viscous oil or fat is applied to the outer periphery of the rubber ring.

The present invention further provides a rotating shaft rotatably provided in a hinge case, a fixed cam fixed to a partition wall provided in the hinge case while passing the rotating shaft through a center portion, and A rotary sliding cam provided so as to be slidable and rotate with the rotary shaft while the shaft is inserted through the center portion, and elastic means for pressing the rotary sliding cam toward the fixed cam. A rubber ring is pressed onto the outer periphery of the large diameter portion of the rotary shaft and the outer periphery of the rotary sliding cam to be in pressure contact with the inner periphery of the hinge case, and viscous oil is applied to the outer periphery of each rubber ring. I do.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The case where the present invention is applied to an opening / closing body such as a toilet seat or a toilet lid of a Western-style toilet bowl will be described below. However, the present invention is not limited to this embodiment and other copying machines The present invention can be applied to various opening / closing bodies such as a document pressure plate and a display body of OA equipment.

The drawings show an embodiment of the present invention. According to the drawings, in FIGS. 1 to 5, 1, 1 'is a hinge case, and each hinge case 1, 1' is on one side thereof. Each of the mounting portions 1a, 1a 'extending from the portion is mounted to the left and right of the rear upper end of the toilet body 2 of the Western style toilet via fixing bolts 3, 3'. There are a pair of left and right hinge cases 1 and 1 '. The left one 1 is a hinge case of the opening and closing device A for a toilet seat, and the right one 1' is a hinge case of the opening and closing device A 'for a toilet lid. Of course, the reverse is also possible. From the hinge cases 1, 1 'of the opening / closing devices A, A', the respective rotating shafts 4, 4 'project from the hinge cases 1, 1' on the side opposite to the side facing each other with the axes common to each other. A connecting member 10 made of a connecting pipe is attached to the slightly fixed insertion fixing portions 1b and 1b 'provided on the hinge cases 1 and 1'.
Are connected and fixed to each other by inserting both ends. The connecting member 10 may be a connecting rod inserted into each hinge case or a connecting member fixed by bolts, other than the connecting pipe. The internal structure of each of the opening / closing devices A and A 'is basically the same except that the internal structure is left-right symmetric. Therefore, only the left-side toilet seat opening / closing device A will be described below.

The hinge case 1 has a large diameter portion 4a, which is provided at a substantially central portion of the rotary shaft 4, supported by an inner end of the hinge case 1, and a partition wall 1c having one end provided in the hinge case 1. And is rotatably mounted in a bearing hole 1e. A circumferential groove 4b provided on the outer periphery of the large diameter portion 4a
O-ring 5 for sealing is attached to the inner periphery of hinge case 1. A viscous oil (not shown) is applied to the outer periphery of the O-ring. The portion of the rotating shaft 4 protruding from the hinge case 1 is a deformed mounting portion 4c whose cross section has been deformed into a substantially cross shape, and one mounting portion 6a of the toilet lid 6 has a substantially circular cross section in this deformed mounting portion 4c. Is rotatably pivoted through the shaft supporting hole 6b, and has a cross-shaped deformed mounting hole 7c provided in the mounting portion 7a of the toilet seat 7.
Are inserted so as to rotate together with the rotating shaft 4.

A rotating shaft 4 'having the same shape as the left rotating shaft 4 protruding from the right hinge case 1'.
Is provided with a modified mounting hole 6c provided in the mounting portion 6a of the toilet lid 6 and adapted to a rotating shaft having a substantially cross-sectional shape, and is axially engaged with the deformed mounting portion 4c 'of the rotating shaft 4'. The toilet seat 7 is mounted so as to rotate together with the rotary shaft 4 ′. The mounting portion 7 a of the toilet seat 7 is provided with a shaft support hole 7 b having a substantially circular cross section (not shown). It is rotatable around. In this way, the toilet seat 7 is opened and closed, and the left rotating shaft 4 rotates, and the right rotating shaft 4 'does not rotate.
On the other hand, when the toilet lid 6 is opened and closed, the left rotating shaft 4 does not rotate, but the right rotating shaft 4 'rotates.

Returning to the left-hand opening / closing hinge A again, the portion of the rotary shaft 4 housed in the hinge case 1 is also a deformed shaft portion 4d having a substantially cross-shaped cross section.
The rotary sliding cam 8 of the cam mechanism B is inserted into and engaged with the deformed shaft portion 4d through a deformed shaft insertion hole 8a (see FIG. 7) provided in the axial direction of the center portion thereof. It is mounted so that it can slide in the axial direction.
A peripheral groove 8b is provided on the outer periphery of the rotary sliding cam 8 as shown in FIG. 6, and as shown in FIG. 4, a rubber damper ring 11 is fitted into the peripheral groove 8b, for example. It is attached to the inner periphery of the hinge case 4 by pressing.
A peripheral groove of the damper ring 11 is provided, and a viscous oil (not shown) is applied to an outer periphery thereof. On the right end surface of the rotary sliding cam 8, a rotary sliding cam portion 8e including a pair of convex portions 8c and concave portions 8d is provided.
e, and a pair of convex portions 9b and concave portions 9c
A fixed cam 9 having a fixed cam portion 9d is provided. As shown in FIG. 10, the fixed cam 9 has a shaft insertion hole 9a having a circular cross section provided in the axial direction of the center portion thereof, and the deformed shaft portion 4d of the rotary shaft 4 can be freely rotated into the shaft insertion hole 9a. The axis is inserted. The fixed cam 9 does not rotate together with the rotary shaft 4 by fitting a plurality of projections 9e protruding from the right end surface thereof into locking holes 1d provided in a partition wall 1c provided in the hinge case 1. .

Next, an elastic means 12 composed of a compression spring is elastically provided between the large diameter portion 4a and the rotary sliding cam 8 while being wound around the deformed shaft portion 4d of the rotary shaft 4. This elastic means 12 is provided with the rotary sliding cam 8.
Is slidably biased in one direction to form a rotary sliding cam portion 8 comprising a pair of convex portions 8c and concave portions 8d provided on the rotary sliding cam 8.
e is pressed against the fixed cam 9 d side of the fixed cam 9.

Therefore, when the toilet seat 7 shown in FIG. 3 is opened and closed, the rotary shaft 4 rotates together with the rotary sliding cam 8, and at this time, the convex portion 8c of the rotary sliding cam portion 8d of the rotary sliding cam 8 is rotated. The fixed cam 9 moves while sliding between the convex portion 9b and the concave portion 9c of the fixed cam portion 9d. Accordingly, when the toilet seat 7 in which the convex portion 8c of the rotary sliding cam portion 8d moves from the convex portion 9b of the fixed cam portion 9d to the concave portion 9d can be opened lightly, as shown in FIG. When the projection 8c fits into the recess 9c, the open state can be stably maintained. Also,
When closing the toilet seat 7, the convex portion 8c of the rotary sliding cam portion 8d is used.
The toilet seat 7 does not suddenly close due to encountering a resistance when it comes out of the concave portion 9c of the fixed cam portion 9d and moves toward the convex portion 9b while rotating and sliding.

FIG. 11 illustrates this. At that time, the damper ring 11 rotates and slides in a state of being pressed against the inner periphery of the hinge case 1 together with the rotary sliding cam 8 so as to exhibit a non-linear characteristic as shown in FIG. It is to prevent. The O-ring 5, which is fitted on the outer periphery of the large diameter portion 4a of the rotary shaft 4 and pressed against the inner periphery of the hinge case 1, can also function as a damper ring at the same time. Further, even when the toilet seat 7 is opened and closed, even when the toilet seat 7 is twisted left and right, the hinge members 4 and 4 ′ are rotated by receiving the rotational moment about the axes of the fixing bolts 3 and 3 ′ by the connecting member 10. Since it is possible to prevent the rotating shafts 4 and 4 'from being bent, it is possible to effectively prevent the torque curve of the rotating shafts 4 and 4' from changing from a design value. Things.

In FIG. 5, reference numeral 14 denotes a notch 14 on the outer periphery.
a stopper plate having a deformation hole 14b provided at the center thereof is engaged with an end of a deformation shaft portion 4d of the rotating shaft, and a notch portion 14a protrudes from the inner periphery of the hinge case 1. By engaging with 1f, the rotation angle of the rotating shaft 4 and thus the opening angle of the toilet seat and the toilet lid are regulated. Reference numeral 15 denotes a mounting screw for bending the rotating shaft 4 to the partition wall 1c.

The above is the opening / closing hinge A for the left toilet seat.
Has been described only. The opening / closing hinge A ′ for the right toilet lid operates when the toilet lid is opened and closed. However, since this toilet lid is not opened and closed as frequently as the toilet seat, the opening / closing operation is performed as in the case of the toilet seat. There is not much need to add fine accents. Therefore, it is possible to make the shape of the cam provided on the fixed cam simpler. However, since the rotational moment is basically the same as that of the toilet seat, only the cam shape of the fixed cam is different, and the subsequent structure is the same. Therefore, the description of the structure is omitted as described above. .

[0021]

The present invention is configured as described above.
The following effects can be obtained.

According to the first aspect of the present invention, even if the toilet seat or the lid is swung right and left when the toilet seat is opened and closed, the hinge member rotates about the fixing bolt by the connecting member and the rotating shaft is bent. Since it is possible to effectively prevent the falling of the toilet seat and the toilet lid, there is no effect on the falling speed and the falling feeling of the toilet seat and the toilet lid.

According to the structure of the second aspect, the same effects as those of the first aspect can be obtained, and further, there is an advantage that the manufacturing cost is further reduced, and since the connecting member is in a pipe shape, it is hardly deformed and the strength can be maintained.

According to a third aspect of the present invention, when the toilet seat and the toilet lid are particularly closed, the damper ring and the rotary sliding cam perform the rotary sliding operation in a state of being pressed against the inner periphery of the hinge case. However, the damper characteristic indicated by the damper ring exhibits a non-linear characteristic, and the effect of the damper becomes strong immediately before closing, so that the toilet seat and the toilet lid can be extremely effectively prevented from being rapidly closed. is there. Further, since the damper ring exhibits a non-linear characteristic, the width of the damper ring can be made narrower than that of the related art, so that the length of the hinge case can be reduced and the device can be downsized. Is what you can do.

According to the fourth aspect of the present invention, the O-ring fitted to the large diameter portion of the rotary shaft can be used as a rubber damper at the same time, so that the effect of the damper can be further improved. I can play.

[Brief description of the drawings]

FIG. 1 is an exploded plan view for explaining an opening / closing device for a toilet seat and a toilet lid of a Western style toilet according to the present invention.

FIG. 2 is a plan view for explaining an opening / closing device for a toilet seat and a toilet lid of a Western style toilet according to the present invention.

FIG. 3 is a side view for explaining an opening / closing device for a toilet seat and a toilet lid of a Western style toilet according to the present invention.

FIG. 4 is a front cross-sectional view of the opening and closing device when the toilet seat and the toilet lid of the Western style toilet according to the present invention are opened.

FIG. 5 is a side sectional view of the opening / closing device for the toilet seat and the lid of the Western-style toilet according to the present invention.

FIG. 6 is a front view of a rotary sliding cam of the opening / closing device for the toilet seat / toilet lid of the Western style toilet according to the present invention.

FIG. 7 is a bottom view of the rotary sliding cam of the opening / closing device for the toilet seat and toilet lid of the Western style toilet according to the present invention.

FIG. 8 is a front view of a fixed cam of the opening / closing device for a toilet seat and a toilet lid of a Western-style toilet according to the present invention.

FIG. 9 is a side view of a fixed cam of the opening / closing device for the toilet seat / toilet lid of the Western style toilet according to the present invention.

FIG. 10 is a bottom view of the fixed cam of the opening / closing device for the toilet seat / toilet lid of the Western style toilet according to the present invention.

FIG. 11 is an explanatory view of the operation of the opening and closing device when the toilet seat and the lid of the Western style toilet according to the present invention are closed.

FIG. 12 is a development view illustrating the operation of the rotary sliding cam and the fixed cam of the opening / closing device for the toilet seat / toilet lid of the Western style toilet according to the present invention.

FIG. 13 is a damper characteristic diagram of the opening / closing device for the toilet seat and toilet lid of the Western style toilet according to the present invention.

FIG. 14 is a torque curve diagram of the opening / closing device for the toilet seat and the lid of the Western style toilet according to the present invention.

[Explanation of symbols]

 A Opening and Closing Device for Toilet Seat A 'Opening and Closing Device for Toilet Lid B, B' Cam Mechanism 1, 1 'Hinge Case 1a, 1a' Mounting Part 2 Toilet Body 4, 4 'Rotating Shaft 4a Large Diameter Part 4b Peripheral Groove 4c Mounting Part 4d Deformed shaft part 5 O-ring (damper ring) 6 Toilet lid 7 Toilet seat 8 Rotating sliding cam 8b Peripheral groove 8e Rotating sliding cam part 9 Fixed cam 9d Fixed cam part 10 Connecting member 11 Damper ring 12 Elastic means (compression) spring)

[Procedure amendment]

[Submission date] December 15, 1998 (1998.12.
15)

[Procedure amendment 1]

[Document name to be amended] Drawing

[Correction target item name] FIG.

[Correction method] Added

[Correction contents]

FIG. 14

Claims (4)

[Claims] 1. A separate type opening / closing device in which a pair of left and right sides are separately attached to a rear upper end of a Western style toilet body,
A rotary shaft provided with a means for controlling its rotational torque is rotatably inserted into a hinge case of each of the opening and closing devices, and each of the rotary shafts is rotated in a direction opposite to a direction in which the hinge cases face each other. The hinge case is protruded from the hinge case, and the sides of the hinge cases facing each other are connected by a connecting member. Opening / closing device for the toilet seat and lid of a Western style toilet. 2. The opening and closing of a toilet bowl and a toilet lid of a Western style toilet according to claim 1, wherein the connecting member is a connecting pipe, and opposite sides of the hinge case are inserted and fixed to both ends of the connecting pipe. apparatus. 3. A rotating shaft rotatably provided in a hinge case, a fixed cam fixed to a partition wall provided in the hinge case while being rotatably inserted through the center of the rotating shaft, and A rotary sliding cam provided to face the fixed cam so as to be inserted into and engaged with the shaft at the center thereof and to rotate together with the rotary shaft but to be slidable in the axial direction; An elastic means for pressing the moving cam in the direction of the fixed cam, wherein a damper ring which presses against the inner periphery of the hinge case is fitted on the outer periphery of the rotary sliding cam, and a viscous oil is applied to the outer periphery of the damper ring. An opening and closing device for a toilet seat and a toilet lid of a Western-style toilet bowl. 4. A rotating shaft rotatably provided in a hinge case, a fixed cam fixed to a partition wall provided in the hinge case while being rotatably inserted through the center of the rotating shaft, and A rotary sliding cam, which is provided so that the shaft is inserted into and engaged with the center portion and is slidably opposed to the fixed cam so as to be slidable in the axial direction together with the rotary shaft; An elastic means for pressing the rotary sliding cam in the direction of the fixed cam, wherein an O-ring presses the outer circumference of the large diameter portion of the rotary shaft and the outer circumference of the rotary sliding cam against the inner circumference of the hinge case. And a damper ring, and a viscous oil is applied to the outer periphery of each ring to open and close the toilet seat and lid of a Western toilet.