TWI451027B - Liquid damping hinge - Google Patents

Description

Fluid damping hinge

The invention relates in particular to a fluid damping hinge, which is suitable for an open body of a western toilet such as a toilet lid and a toilet seat, except that the body portion can be opened and kept in an upright state, and the body is not idling when the body is closed. fall.

In the prior art, the toilet seat and the toilet seat of the western toilet are assembled such that the toilet lid can be opened to the body portion by a hinge for opening on the rear side of the body portion of the toilet body. In particular, in order to cause a large noise when the toilet lid is rapidly dropped against the toilet seat due to the closing, the damper hinge for buffering the rapid fall between the toilet lid and the toilet seat is as disclosed in Patent Document 1 below. Shown as a well-known technique.

Patent Document 1 JP-A-2002-139018

The conventional damper hinge is composed of a housing, a rotating rod, a plurality of friction elements, a plurality of brake discs, and a viscous oil body. The housing is assembled to the body portion of the western toilet. The rotating rod is locked to the housing, and the protruding portion protruding from the housing is provided with an assembly means for opening the body in a direction penetrating the inner central axis thereof. The friction element penetrates the center of the rotating rod and is fixed in the casing, and an annular friction groove is provided in the axial direction of the edge. The brake disc is restrained by the rotating lever, and the wing portion provided in the direction of the edge axis is pressed into the friction groove of the friction member. The viscous oil body is filled between the friction groove and the wing. A frictional moment is generated between the friction groove and the wing that is pressed into the friction groove.

The damper hinge described above can buffer the falling speed between the toilet lid and the toilet seat, but has a problem of complicated manufacturing cost due to complicated construction.

The object of the present invention is to provide a fluid damping hinge which is simple in construction and low in cost, and is particularly suitable for use in opening of a toilet seat such as a western toilet and a toilet seat.

To achieve the above object, a fluid damping hinge of the present invention comprises: a cylindrical casing having an open end and having a fluid chamber mounted on one side of the body portion; a rotating rod Inserted in a direction of a central axis of the cylindrical casing by a sealing member and restricted to move in the axial direction, and the assembling means of the opening body is disposed on one side of the cylindrical casing; The pressure valve guiding portion is disposed at a portion of the rotating rod in the fluid chamber; a pressure valve is disposed at the pressure valve guiding portion and is movable to be disposed in a pressure valve guiding groove. Wherein, on the pressure valve guiding portion, a pressure accelerating means is disposed facing the pressure valve, and the pressure valve guiding groove is inclined to face the circumference of the fluid chamber.

Moreover, in the present invention, the fluid damping hinge further comprises a restriction means for restricting the movement of the rotating rod in the axial direction of the cylindrical housing, having a one-week groove and a press-in locking bolt, the circumferential groove being disposed on the rotating rod, pressing in The locking bolt is press-fitted into the peripheral groove via a locking hole provided in the cylindrical casing.

Furthermore, in the present invention, the fluid acceleration means may be provided in a shed portion of the cylindrical casing; a curved concave portion provided in the pressure valve guiding portion; Between the inner wall of the body and the guide portion of the pressure valve, a large curved flow path portion and a small curved flow path portion provided for the pressure valve are formed.

According to the above configuration, according to the first aspect of the patent application, when the toilet lid and the toilet seat are opened by the fluid acceleration means, the pressure valve is guided to the inner wall of the fluid to the pressure valve by accelerating the flow of the fluid in the fluid chamber. The sliding in the groove can easily and surely make the front end of the pressure valve spaced and crimped to the inner wall of the fluid chamber, thereby completely functioning as a damping even with only one pressure valve.

Moreover, according to the second item of the patent application, the assembly of the rotating rod to the cylindrical casing does not require screws, small screws or fusion means, etc., and the fluid can be easily assembled by pressing the locking bolts. The damping device also reduces the problem of assembly mismatch.

Then, if the third part of the patent application scope is opened, the toilet lid or the toilet seat is opened, the fluid is accelerated through the large curved flow passage portion when the opening is opened, and the pressure valve is pressed into the guide groove of the pressure valve to smooth the flow of the fluid through the pressure valve. It can make the turning rod and the toilet lid and the toilet seat easier to open. When the squat is closed, the fluid is accelerated through the curved concave portion, the small curved flow passage portion and the shed portion to improve the sliding and crimping of the pressure valve facing the inner wall of the fluid chamber, and the fluid chamber is blocked by the pressure valve in the fluid chamber, so that the rotating rod can be rotated. And the toilet lid and the toilet seat are relatively flat.

Hereinafter, a fluid damping hinge for opening a toilet seat and a toilet seat of a western type toilet according to an embodiment of the present invention will be described, with respect to the fluid damping hinge of the present invention. In addition to the hinges for the toilet seat of the western toilet and the opening of the toilet seat, the chain can also be widely used for the case where the opening of the opening body requires buffering and the need to keep the opening body in an upright state.

Example 1

As shown in Fig. 1, the symbol 1 is a western toilet, the symbol 2 is a body portion of the western toilet 1, the symbol 3 is a toilet cover as an example of an opening, and the symbol 4 is a toilet seat. . The toilet lid 3 and the toilet seat 4 are openably connected to the body portion 2 by the fluid damper hinges 5 and 6 of the present invention. For example, the toilet lid 3 is releasably assembled to the body portion 2 by a fluid damper hinge 5 that is releasably assembled to the body portion 2 by a fluid damper hinge 6. Actually, the following cylindrical casing 10 of the fluid damper hinges 5, 6 is configured by being assembled to the body portion 2 by being assembled to the covering portions 7, 8 of the body portion 2, and in the following description, the covering portion is omitted. 7, 8. Further, the cover portions 7 and 8 may be omitted, and the cylindrical case 10 may be directly assembled to the main body portion 2. Furthermore, the protective cover assembled to the automatic cleaning device can also be used. The assembly method is not limited.

The fluid damper hinges 5, 6 are a pair of right and left, one for the toilet lid 3 and the other for the toilet seat 4. Since the configuration is the same, in the following description, the fluid damper hinge 5 for the toilet lid 3 will be described.

2 to 10 show a fluid damper hinge 5, which is denoted by a synthetic resin molded cylindrical case such as POM. The cylindrical casing 10 is an element having an open end formed by the large diameter portion 10a and the small diameter portion 10b. As shown in Fig. 3, recesses corresponding to the respective diameters are provided in the large diameter portion 10a and the small diameter portion 10b. Hole, in other words, large diameter hole on the side of the large diameter portion 10a 10d and the small diameter hole 10e of the small diameter part 10b part are mutually connected. A fluid chamber 10f is provided at a substantially central portion of the large diameter hole 10d. Inside the fluid chamber 10f, a brake wall 10c that divides the fluid chamber 10f is provided, and on the lower side of the brake wall 10c, a shed portion 10p provided along the inner circumference of the fluid chamber 10f is provided. Next, the fluid chamber 10f is connected, and as shown in FIG. 3, the first sealing chamber 10g is provided on the left side. On the side of the small diameter portion 10e, the connecting fluid chamber 10f is provided with a second sealed chamber 10h. On the outer circumference of the large diameter portion 10a, a plurality of engagement projections 10i, 10j, and 10k are provided for the insertion fixing cover portion 7. A small hole 10m communicating with the second sealed chamber 10h is provided in the axial direction of the end portion of the small diameter portion 10b. Further, the locking hole 10n is not provided at the position of the axial center portion in the radial direction.

The rotation lever 11 is rotatably inserted in the axial direction of the center portion of the cylindrical casing 10. The turning lever 11 is made of, for example, 66-NYLON, and is composed of an assembling means 11b, a first sealing element assembling portion 11d, a pressure valve guiding portion 11e, and a second sealing member assembling portion 11g as shown in Figs. 5 and 8. The assembly means 11b is provided with an assembly hole 11a in the axial direction of the shaft, and the assembly hole 11a is slightly elliptical in a non-circular cross section which protrudes from the open end side of the cylindrical case. The first seal member assembling portion 11d is provided with a first circumferential groove 11c for mounting the first seal member 13 on the outer circumference of the joint assembly means 11b. The pressure valve guide portion 11e is provided adjacent to the first seal member assembly portion 11d, and has a size that occupies half of the entire outer circumference. The second sealing element assembly portion 11g is provided with a second circumferential groove 11f for attaching the second sealing member 14 having a small diameter to the outer peripheral edge of the pressure valve guiding portion 11e. A third circumferential groove 11h that engages with the press-fit locking plug 15 to be described later is provided on the outer periphery of the second sealing element assembly portion 11g. Furthermore, the pressure valve guiding portion 11e has a sliding inner side with the braking portion 10c. The curved small concave portion 11p and the curved large concave portion 11r provided on the opposite side, and on the side of the curved large concave portion 11r, the braking portion 11s and the curved concave portion 11i provided on the opposite side of the braking portion 11s, and hereinafter referred to as pressure The pressure valve of the valve 12 guides the groove 11k. In other words, in the embodiment, the pressure valve guide groove 11k is formed to be inclined rearward by 65 degrees with respect to the horizontal line of the axial center portion of the rotating lever 11. A pair of holes 11m, 11m are provided at a predetermined interval from the outer side of the curved large recess 11r toward the bottom of the pressure valve guide groove 11k. Further, the inlet of the pressure valve guide groove 11k is provided with one side of the holes 11m, 11m, and a pair of first fluid guiding recesses 11n, 11n are provided. On the side of the curved recess 11i, as shown in Fig. 10, a pair of third fluid guiding recesses 11v, 11v are also provided. Further, the number of the holes 11m, the first fluid guiding concave portion 11n, and the third fluid guiding concave portion 11v is not limited. Further, the side of the pressing portion 11s of the curved large recessed portion 11r facing the pressure valve 12, and the side of the curved recessed portion 11i facing the pressure valve 12 are formed between the outer periphery of the rotating rod 11 and the inner wall of the fluid chamber 10f. The large curved flow path portion 11t and the small curved flow path portion 11u of the gap.

Next, the large curved flow path portion 11t, the shed portion 10p of the cylindrical case 10, the curved concave portion 11i, and the small curved flow path portion 11u constitute the fluid acceleration means 17.

The pressure valve 12 is, for example, a molded product made of POM. As shown in FIG. 9, the shape is slightly flat, the front end portion is arc-shaped, and one side is provided with a reverse portion 12a, and a pair of second fluid guiding concave portions 12b are provided at a predetermined interval on the reverse portion 12a. 12b. The number of the second fluid guiding recesses 12b, 12b is not limited. Also, because the length of the pressure valve 12 is greater than the depth of the pressure valve guide groove 11k Short, the pressure valve 12 is slidable in the longitudinal direction of the pressure valve guide groove 11k.

Further, the first sealing member 13 and the second sealing member 14 are formed, for example, by an O-ring, and have different diameters. As shown in FIG. 3, the first sealing element 13 having a large radial length is fitted into the first circumferential groove 11c, and the second sealing element 14 having a small diameter is fitted into the second circumferential groove 11f. The component symbol 15 shows a press-in latch. The press-in locking plug 15 is, for example, a metal product such as SUS, and is press-fitted by the locking hole 10n to engage with the third circumferential groove 11h of the rotating lever 11, thereby restricting the movement of the rotating lever 11 in the axial direction so as not to be rounded. The cylindrical casing 10 is detached.

The above-described constituent elements are assembled as shown in Figs. 2 and 3 to constitute a fluid damper hinge 5. In other words, first, the first circumferential groove 11c provided in the first sealing member assembly portion 11d of the rotating lever 11, and the second circumferential groove 11f of the second sealing member assembling portion 11g are respectively attached to the first sealing member 13 and the first The second sealing member 14 has a second sealing member assembly portion 11g as a tip end, and the rotating rod 11 is inserted from the large diameter hole 10d side in the cylindrical casing 10. Next, the fluid 16 such as silicone oil is filled into the fluid chamber 10f, and the large diameter hole 10d and the small diameter hole 10e are sealed by the first sealing member 13 and the second sealing member 14. At this time, the excess fluid 16 is discharged to the outside through the small hole 10m provided on the small diameter portion 10b side of the cylindrical casing 10.

Then, the rotating rod 11 is press-fitted into the cylindrical casing 10, the end of the second sealing member assembly portion 11g of the rotating rod 11 abuts against the inner wall of the small diameter hole 10e, and the second sealing member 14 seals the small diameter hole 10e. At this position, the third circumferential groove 11h coincides with the position of the locking hole 10n, and the pressing locking pin 15 is pressed into the small diameter hole 10e in the cylindrical casing 10 by the locking hole 10n, so that the pressing is performed. The locking bolt 15 is engaged with the third circumferential groove 11h of the rotating lever 11, so that it is not required to be locked It can be assembled by means of a relatively high cost such as fusion, and the rotating rod 11 is restricted to the axial direction without being pulled out by the cylindrical casing 10. In this state, with the first sealing member 13 and the second sealing member 14, the fluid 16 of the fluid chamber 10f is sealed in the fluid chamber 10f without leaking to the outside.

Next, the cylindrical casing 10 is assembled to the upper end of the rear portion of the main body portion 2, and a support bolt (not shown) is inserted and fixed to the assembly hole 11a provided in the assembling means 11b of the rotating lever 11, to be fixed to the assembling portion 3a of the toilet cover 3. More specifically, the pivotable shaft of the assembly portion not shown in the figure of the toilet seat 4 is provided on the support pin. Further, on the fluid damper hinge 6 for opening the toilet seat 4, the toilet seat 4 is also provided via a support bolt shaft, and a pivotable shaft of the assembly portion 3a of the toilet lid 3 is provided on the support bolt.

The following describes the mode of operation. Starting from the toilet lid 3, the body portion 2 of the western toilet 1 is in a closed state, and the pressure valve 12 is slidably assembled to the pressure valve guide groove 11k of the pressure valve guide portion 11e of the fluid damper hinge 5 rotating rod 11, pressure The valve 12 is in a state where the top portion 12c is butted against the inner wall of the fluid chamber 10f.

The toilet lid 3 is opened by the closed state, and the rotating rod 11 is rotated in the clockwise direction, and the fluid 16 of the fluid chamber 10f is accelerated by the large curved flow path portion 11t, and the pressure valve 12 is pushed to the side of the pressure valve guiding groove 11k. The pressure valve 12 is pressed into the pressure valve guide groove 11k. Thereby, a gap is formed between the top portion 12c of the pressure valve 12 and the inner wall of the fluid chamber 10f, and the pressure valve 12 is held by the fluid 16 to flow to the lower left side, and the toilet lid 3 can be operatively opened due to the smooth flow of the fluid 16.

The toilet lid 3 opened thereby is guided by a pressure valve as shown in FIG. The braking portion 11s of the portion 11e is stopped by abutting against the brake wall 10c provided in the fluid chamber 10f. The opening angle of this embodiment is 92 degrees. At this opening angle, since the toilet lid 3 is rotated in the reverse direction, the toilet lid 3 can be held in position without automatically falling. Further, by changing the positions of the brake wall 10c and the braking portion 11s, the opening angle can be made 92 degrees or more.

Next, when the toilet lid 3 is closed, the toilet lid 3 is turned by hand in the counterclockwise direction of the closing direction, and the rotating lever 11 is also rotated in the counterclockwise direction. With the rotation, the flow velocity of the fluid 16 of the fluid chamber 10f is guided and accelerated via the curved recess 11i of the pressure valve guide portion 11e. The flow rate of a part of the fluid is accelerated by the small curved flow path portion 11u of the fluid acceleration means 17 between the outer periphery of the pressure valve guide portion 11e and the inner wall of the fluid chamber 10f, and then flows into the bottom of the pressure valve guide groove 11k through the holes 11m, 11m. The pressure valve 12 is directed to the inside of the fluid chamber 10f. The other portion of the fluid 16 contacts the reverse portion 12a of the pressure valve 12 by the first fluid guiding recesses 11n, 11n, and pushes the pressure valve 12 toward the inner wall of the fluid chamber 10f. Therefore, by restricting the flow rate upward by the pressure valve 12 of the fluid 16, the closing operation of the toilet lid 3 can be buffered to be gentle. Fig. 7 shows the state of the pressure valve 12 when the toilet lid 3 is moved from the open state to the closed state. Further, the shed portion 10p of the fluid accelerating means 17 reduces the distance between the curved large convex portion 11r and the inner wall of the fluid chamber 10f to accelerate the fluid 16, and further, by restricting the movement of the fluid 16, the swaying rod 11 can be achieved. The function of blocking the rotation of the toilet lid 3 and the toilet seat 4 is closed. On the other hand, the second fluid guiding recesses 12b, 12b serve to provide a function for the fluid 16 to be slowly moved from the top portion 12c of the pressure valve 12 to the opposite side when the toilet lid 3 is closed.

Moreover, as described above, the opening body for opening the toilet is the toilet seat 4 Alternatively, the fluid damper hinge of the open body of the present invention can also be used as a hinge for the opening of the toilet seat 4.

The present invention is applicable to the above-described configuration, particularly from a western toilet, to a closed body such as a toilet lid and a toilet seat, and particularly to an object that achieves a cushioning function at the time of closing.

1‧‧‧Western toilet

2‧‧‧ Body Department

3‧‧‧ toilet cover

3a‧‧‧Assembly Department

4‧‧‧ toilet seat

5, 6‧‧‧ fluid damping hinge

7, 8‧‧‧ Coverage

10‧‧‧Cylindrical shell

10a‧‧‧Great Path Department

10b‧‧‧Little Trails Department

10c‧‧‧ brake wall

10d‧‧‧ Large diameter hole

10e‧‧‧ small diameter hole

10f‧‧‧ fluid room

10g‧‧‧first sealed room

10h‧‧‧Second sealed room

10i, 10j, 10k‧‧‧ snap protrusion

10m‧‧‧ hole

10n‧‧‧ card hole

10p‧‧‧ shed

11‧‧‧Rotary lever

11a‧‧‧Assembled holes

11b‧‧‧assembly means

11c‧‧‧First week ditch

11d‧‧‧First Sealing Element Assembly

11e‧‧‧pressure valve guide

11f‧‧‧second week ditch

11g‧‧‧Second sealing component assembly

11h‧‧‧ third week ditch

11i‧‧‧curved recess

11k‧‧‧pressure valve guiding groove

11m‧‧‧ hole

11n‧‧‧First fluid guiding recess

11p‧‧‧Curved small recess

11r‧‧‧Bending large recess

11s‧‧‧Brake

11t‧‧‧Big curved runner

11u‧‧‧Small curved runner

11v‧‧‧ third fluid guiding recess

12‧‧‧pressure valve

12a‧‧‧Reverse Department

12b‧‧‧Second fluid guiding recess

12c‧‧‧ top

13‧‧‧First sealing element

14‧‧‧Second sealing element

15‧‧‧Push in the locking bolt

16‧‧‧ Fluid

17‧‧‧Fluid acceleration

1 is a perspective view of a western type toilet seat to which a fluid damping hinge of the present invention is applied as a hinge for a toilet seat and a toilet lid; FIG. 2 is a front view of the fluid damping hinge of the present invention; and FIG. 3 is a central longitudinal section of FIG. Figure 4 is a cross-sectional view taken along line BB of Figure 2; Figure 5 is an exploded perspective view of the fluid damping hinge of the present invention; Figure 6 is an explanatory view illustrating the action of the fluid damping hinge of the present invention; Figure 8 is a perspective view of a rotating rod of a fluid damping hinge of the present invention; Figure 9 is a perspective view of a pressure valve of a fluid damping hinge of the present invention; and Figure 10 is a fluid damping of the present invention A partially enlarged perspective view of the third fluid guiding recess of the hinge rod of the hinge.

5‧‧‧ Fluid Damping Hinge

10‧‧‧Cylindrical shell

10a‧‧‧Great Path Department

10b‧‧‧Little Trails Department

10c‧‧‧ brake wall

10g‧‧‧first sealed room

10k‧‧‧ snap protrusion

10p‧‧‧ shed

11‧‧‧Rotary lever

11a‧‧‧Assembled holes

11b‧‧‧assembly means

11c‧‧‧First week ditch

11d‧‧‧First Sealing Element Assembly

11f‧‧‧second week ditch

11g‧‧‧Second sealing component assembly

11h‧‧‧ third week ditch

11p‧‧‧Curved small recess

11s‧‧‧Brake

12‧‧‧pressure valve

12a‧‧‧Reverse Department

12b‧‧‧Second fluid guiding recess

12c‧‧‧ top

13‧‧‧First sealing element

14‧‧‧Second sealing element

15‧‧‧Push in the locking bolt

Claims (3)

A fluid damping hinge comprising: a cylindrical casing having an open end and having a fluid chamber mounted on one side of the body portion; a rotating rod rotatable by a sealing member Inserted in the central axis direction of the cylindrical casing and restricted to move in the axial direction, and the assembling means of the opening body is disposed on one side of the cylindrical casing; a pressure valve guiding portion a portion of the rotating rod located in the fluid chamber; and a pressure valve disposed at the pressure valve guiding portion and movably disposed in the pressure valve guiding groove, wherein the pressure valve guiding portion Upper, facing the pressure valve is provided with a fluid acceleration means, and the pressure valve guiding groove is inclined to face the circumference of the fluid chamber. The fluid damping hinge according to claim 1, further comprising: a restriction means for restricting movement of the rotating rod in the axial direction of the cylindrical housing, having a one-day groove and a press-in locking plug, The circumferential groove is provided in the rotating lever, and the press-in locking plug is press-fitted into the circumferential groove via a locking hole provided in the cylindrical casing. The fluid damping hinge according to claim 1, wherein the fluid acceleration means comprises: a shed portion disposed on the cylindrical casing; a curved concave portion disposed at the pressure valve guiding portion; A large curved flow path portion and a small curved flow path portion are disposed facing the pressure valve between the fluid chamber inner wall and the pressure valve guide portion.