JPH09253003A - Buffer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To surely fix to a holder without using adhesive and to prevent a buffer from being detached from the holder as well. SOLUTION: When this buffer 15 is inserted to the holder 25 so as to be fit to a buffer fitting part 13, the buffer 15 is embedded to a position where engaging grooves 41a and 43a are detained to detaining pawls 31 and 33 while slid contacting with the inner peripheral; surface of the holder 25 with the outer peripheral surface of respective ribs 39 as a guide surface. In the case that the holder 25 is deformed in a gourd shape, a recessed part is extended to an outer side by the outer peripheral surface of the respective robs 39 and deformation is corrected. When the engaging grooves 41a and 43a reach the installation positions of the detaining pawls 31 and 33, the detaining pawls 31 and 33 are firmly detained (snap-fitted) to the engaging grooves 41a and 43a by stress to an inner peripheral side generation the holder 25 and the stress to the outer side generated on the respective ribs 39 by correction and the buffer 15 is fixed inside the holder 25 in the state.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shock absorber provided on, for example, the bottom surface of a toilet seat of a toilet bowl or the bottom surface of a toilet lid, and is used for various purposes such as mitigating a collision, and more particularly to a shock absorber holder. The improvement of the structure to be attached to

[0002]

2. Description of the Related Art Conventionally, as a method of fixing a cushion between a toilet bowl and the back of a toilet seat, adhesive is applied to a plurality of cushions made of an elastic member formed in an oval shape, and these are attached to the toilet seat. A method is known in which a plurality of cushioning body fitting portions formed in an oval shape on the back surface are fitted into the cushioning body fitting portions. In addition, a wedge-shaped projection is formed on the bottom surface of each cushioning body fitting portion, and a V-shaped groove is formed on the lower end portion of each cushioning body, so that the wedge-shaped projections bite into the V-shaped groove when the cushioning body is fitted. Due to the outward elastic force generated in the buffer,
There is also known a method of fixing a buffer body to a buffer body fitting portion without using an adhesive (see Japanese Utility Model Publication No. 6-18559).

[0003]

By the way, in the above first method, since the buffer body is fixed to the buffer body fitting portion by the adhesive, the step of applying the adhesive to the buffer body or the buffer body A step of curing the applied adhesive is required. Therefore, there is a problem that the manufacturing process of the toilet seat takes a great deal of time, which is not practical. On the other hand, in the above second method, since the cushioning body is simply press-fitted into the cushioning body fitting portion, for example, the toilet seat has an upper end surface due to the posture change of the seated user. If it is laterally displaced from the fixed position, the shock absorber may be disengaged from the shock absorber fitting portion.

Therefore, in each of the cushioning body fitting portions, claw portions are formed along the inner peripheral surfaces of both ends formed in an arc shape, and the outer peripheral surface of each cushioning body corresponds to each of the claw portions. Then, a method has been newly proposed in which the respective cushioning bodies are press-fitted into the respective cushioning body fitting portions in a so-called snap fit manner by forming the respective concave portions.

In this method, however, the shape of the cushion fitting portion provided on the toilet seat side is deformed into a gourd shape after molding, for example, as shown in FIG. It will slip outward from the center of the toilet seat. Therefore, in each of the claw portions 1 and 3, the cushioning body fitting portion 5
Since the area of engagement with the recesses of the buffers (not shown) fitted to the inner peripheral side of is reduced, there is a problem that the engagement force between the buffer and the buffer fitting portion 5 becomes weak. It was

Therefore, in consideration of the deformation of the cushioning body fitting portion 5 as described above, it has been attempted to increase the protrusion width of each of the claw portions 1 and 3. There is a problem in that the toilet seat including the portion 5 cannot be removed from the mold, and the toilet seat cannot be released from the mold by forcibly pulling out. Further, in order to reduce the deformation of the cushioning body fitting portion 5, a method of increasing the thickness of the cylindrical holder 7 forming the cushioning body fitting portion 5 or a method of integrally molding the cushioning body with the toilet seat has been tried. Was given. However, in these methods, only the portion where the holder 7 and the cushioning body are thickened, and the appearance of the upper surface of the toilet seat is reduced (that is, a recess is formed on the upper surface of the toilet seat during injection molding). There arises a problem that the quality as a product deteriorates.

Further, a method is conceivable in which the shape of the cushioning body is determined in anticipation of the deformation of the cushioning body fitting portion 5, but it is difficult to accurately predict the deformation of the cushioning body fitting portion 5 in advance. It was not a realistic method.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a shock absorber which can be securely fixed to a holder without using an adhesive and can be prevented from being detached from the holder.

[0009]

According to a first aspect of the present invention, there is provided a cushioning body, a collar inserted into an opening of a holder, a second snap element provided on an outer peripheral surface of the collar, and an outer peripheral surface of the collar. And at least one or more ribs provided on the. A first snap element is provided on the inner peripheral surface of the opening of the holder. The first snap element engages a second snap element on the collar side to form a snap fit when the collar is inserted into the opening. At the same time, the rib is pressed against the inner peripheral surface of the opening of the holder.

According to the first aspect of the present invention, when the cushioning body is inserted into the opening of the holder, the recess is corrected by the rib even if the holder is deformed and recessed. The holder and the rib generated by the correction are respectively corrected. The resulting stress acts to strengthen the snap fit condition. Further, since a sufficient frictional force is generated between the outer peripheral surface of the rib and the inner peripheral surface of the holder, the snap fit state is more firmly held. Furthermore, since the frictional force generated between the collar and the inner wall surface of the holder can be made smaller than that in the case where the collar is formed to be thick over the entire circumference, the cushioning body can be easily inserted into the holder.

In a preferred embodiment according to the first aspect of the present invention, a plurality of ribs are provided so as to face each other via a collar. Each rib extends from the base end of the collar in the direction in which the collar is inserted, and is configured to increase in thickness as it goes from the base end of the collar in the direction in which the collar is inserted. Therefore, as the insertion of the collar into the holder becomes deeper, the pressure contact area between each rib and the inner peripheral surface of the holder increases, whereby a larger frictional force can be obtained.

In another preferred embodiment, the first snap element is provided on the inner peripheral surface of both longitudinal ends of the elongated opening of the holder, and the second snap element is of the shock absorber.
It is provided at a position corresponding to the first snap element. First
And the second snap element is an engagement groove. The opposite case can also be envisaged.

For example, when the cushioning body is fitted to the cushioning body fitting portion provided along the left-right direction on the back surface of the toilet seat, the toilet seat moves forward and backward rather than the left-right direction when seated or opened / closed by the user. The amount of deviation in the direction is large. In this case, as in the above configuration, the first snap element is provided on the inner peripheral surfaces of both ends in the longitudinal direction of the elongated opening of the holder, and the second snap element is used as the first snap element of the shock absorber. If it is provided at the corresponding position, it is possible to prevent the cushioning body from being separated from the cushioning body fitting portion.

In another preferred embodiment different from the above, the opening of the holder has an elongated shape, and the rib is provided at a position where it is pressed against the elongated inner peripheral surface of the opening of the holder.

According to this structure, each rib functions as a guide when the cushioning body is inserted into the holder, so that the cushioning body can be easily inserted.

Further, in another preferred embodiment different from the above, when the cushioning body is slid with respect to an object in contact therewith, the longitudinal direction of the opening is set with respect to the sliding direction. The holder is installed in such a posture that it becomes a substantially right angle.

According to this structure, for example, when the cushioning body is fitted to the cushioning body fitting portion provided along the left and right direction of the back surface of the toilet seat, the cushioning body is surely contacted with the upper end surface of the toilet bowl. Can be contacted. In this case, if both ends of the cushioning body and the holder in the longitudinal direction are formed in an arc shape, the stress when the toilet seat moves in the left-right direction can be dispersed.

[0018]

Embodiments of the present invention will be described below in detail with reference to the drawings.

FIG. 2 is a plan view showing a toilet seat as one embodiment of the opening / closing member according to the present invention, and FIG. 3 is a partial side view showing a toilet seat and a toilet lid as one embodiment of the opening / closing member according to the present invention. Is.

In this embodiment, both the toilet seat 11 and the cushioning body 15 attached to the toilet seat 11 shown in FIG. 2 and the subsequent figures are made of PP resin (polypropylene) which is not adhesive. As shown in FIG. 2, a plurality of oval-shaped cushioning member fitting portions 13 are formed on the back surface of the toilet seat 11 at substantially equal intervals. As shown in FIG. 3, the shock absorbers 15 are fitted in the shock absorber fitting portions 13, respectively. Regarding the configuration of each cushion fitting portion 13 and each cushion 15,
Details will be described later.

In the toilet device according to this embodiment, as shown in FIG. 3, a toilet lid 17 is further attached in addition to the toilet seat 11. The back surface of the toilet lid 17 is also provided with a plurality of buffer body fitting portions 19 formed in an oval shape and a buffer body 21 fitted into each buffer body fitting portion 19. The toilet seat 11 and the toilet lid 17 are conventionally composed of a nut, a slip washer, and a triangular packing, but the slip washer is eliminated, and the fastener 23 is formed by integrally molding the nut and the triangular packing. It is attached and fixed to the device.

FIG. 4 is a cross-sectional view of the toilet seat 11 shown in FIG. 2 taken along the line AA ′ with the front and back reversed, and FIG.
It is a top view when it sees from the upper part of the buffer body fitting part shown in FIG.

As shown in FIG. 4, the toilet seat 11 is relatively gently curved on the inner peripheral side and has a flange (inner peripheral side flange) 11a at its end, and is bent at a substantially right angle on the outer peripheral side to form a flange. Each (outer peripheral side flange) 11b is formed.

Each cushion fitting portion 13 is formed by a cylindrical holder 25 having an inclination such that the portion near the inner peripheral side flange 11a is low and the portion near the outer peripheral side flange 11b is high on the back surface of the toilet seat 11. Has been formed.

The holder 25 is for guiding and fixedly holding the cushioning body fitted to the fitting portion 13, and has a shape as viewed from above in FIG. 4 (that is, the back side of the toilet seat 11). The shape as viewed from above) is formed to have an elliptical shape. The thickness is set to be substantially the same over the entire circumference.

Engaging claws 31 and 33 are formed in an arc shape along the inner peripheral surface near the edges of the arc-shaped portions 27 and 29 of the holder 25, as shown in FIGS. 4 and 5, respectively. . These engaging claws 31 and 33 are fixedly held by the holder 25 in a so-called snap-fit state by engaging the engaging grooves 41a and 43a of the cushioning body 15, which will be described later in detail, respectively. The Rukoto.

The reason why the engaging claws 31 and 33 are formed in the above-described manner is that the toilet seat 11 is moved forward and backward in comparison with the amount of movement in the left and right direction when the user is seated or opened / closed. Since the amount of movement in the direction is large, it is possible to prevent the engagement claws 31 and 33 from being disengaged from the engagement grooves 41a and 43a by providing the engagement claws 31 and 33 at both ends in the left-right direction. is there.

As described above, by setting the length direction of the holder 25 so as to cross the upper end surface of the toilet bowl,
It becomes possible to fit the buffer body 15 having the same shape as the holder 25, and the buffer body 15 can be reliably brought into contact with the upper end surface of the toilet bowl. In addition, the arcuate portions 27, 2 of the holder 25
9 and the arcuate portion of the cushioning body 15 can also disperse the stress when the toilet seat 11 is laterally displaced laterally.

FIG. 6 shows the buffer body 15 according to the present embodiment.
FIG. 7 is a plan view when the base surface is the bottom surface, and FIG.
FIG. 8 is a sectional view taken along line B ′ of FIG.
10 is a view of the cushioning body shown in FIG. 6 viewed from the direction of arrow D, and FIG. 10 is a view of the cushioning body shown in FIG. 6 viewed from the direction of arrow E.

The buffer 15 is composed of an oval base 35, a collar 37 integrally formed on the base 35, and a plurality of ribs 39. The base portion 35 is formed in a plate shape as a whole, and when the cushioning body 15 is fitted into the holder 25, the base portion 35 comes into contact with the upper end surface of the toilet bowl and functions as a flat surface that functions to reduce the impact between the toilet seat 11 and the toilet bowl. 35a. Both end portions in the left-right direction (hereinafter, simply referred to as both end portions) of the base portion 35 in FIG. 6 are formed in an arc shape as illustrated.

The collar 37 is erected substantially oval with respect to the base portion 35 on the back surface side of the flat surface 35a, and the central portion thereof has a peripheral edge of the central portion of the base portion 35, as shown in FIGS. It extends in parallel to the left and right with the part retracted considerably. Further, in the central portion of the collar 37, four ribs 39 are arranged on the outer peripheral side of the collar 37, two ribs 39 facing each other.

On the other hand, both end portions of the collar 37 are connected to the base portion 35.
The arcuate parts 41, 4 are slightly retracted from both end parts of the
3 is formed. Then, on the outer peripheral surfaces of the arc-shaped portions 41 and 43, the engagement claws 31 and 33 on the cushioning body fitting portion 13 side (that is, the holder 25 side) described above are engageable with the engagement grooves 41a and 41, respectively. 43a is formed (FIGS. 9 and 10).
reference). When the buffer 15 is fitted into the holder 25,
By locking the engaging claws 31 and 33 in the engaging grooves 41a and 43a, respectively, the cushioning body 15 is fixed in the holder 25 in a so-called snap fit state.

This engagement state will be described later in detail.

Each rib 39 not only functions as a reinforcing member for the collar 37, but also a guide member for fitting the shock absorber 15 into the holder 25, and a correction member for correcting the deformation of the holder 25. It is provided to function as a. The cross-sectional shape of each rib 39 has a collar 37.
The thickness is gradually increased from the end of the collar 37 toward the base 35 side, and the thickness is constant near the middle of the end of the collar 37 and the base 35 to reach the base 35.

That is, in this embodiment, the width from the outer peripheral surface of the thickest portion of one rib 39 to the outer peripheral surface of the thickest portion of the rib 39, which is in an opposing relationship with the rib 39, that is, The width indicated by reference numeral 45 in FIG. 8 is set larger than the width between the inner peripheral surfaces of the corresponding portions of the holder 25. By providing these ribs 39, even if the holder 25 is deformed into a gourd shape like the holder 7 shown in FIG. 1, the above-mentioned deformation does not occur when the shock absorber 15 is fitted into the shock absorber fitting portion 13. Can be corrected.

In the above structure, when the cushioning body 15 is inserted into the holder 25 so as to be fitted into the cushioning body fitting portion 13,
In the cushioning body 15, while the outer peripheral surface of each rib 39 serves as a guide surface and is in sliding contact with the inner peripheral surface of the holder 25, the engaging groove 41a,
43a is embedded up to a position where it engages with the engaging claws 31, 33.

Here, when the holder 25 is deformed like a gourd like the holder 7 shown in FIG. 1, the recessed holder 25 is moved from the inner peripheral side of the holder 25 by the outer peripheral surface of each rib 39. Since it will be expanded to the outside,
The deformation of the holder 25 is corrected. Then, the engaging groove 41
When a and 43a reach the installation position of the engaging claws 31 and 33,
The engaging claws 3 due to the stress on the inner peripheral side generated in the holder 25 and the stress on the outer side generated in each rib 39 by the above correction
1, 33 are firmly locked (snap fit) in the engagement grooves 41a, 43a. Then, in this state, the buffer 15 is fixed in the holder 25 (see FIG. 11).

Thus, the deformed state of the holder 25 is
Since it is corrected by each rib 39, the engaged regions of the engaging claws 31, 33 with respect to the engaging grooves 41a, 43a are sufficiently secured. Moreover, in the state shown in FIG. 11, since the contact area between the outer peripheral surface of each rib 39 and the inner peripheral surface of the holder 25 is the maximum, the frictional force generated between the two causes the shock absorber 15 to move. The fixing force to the holder 25 can be further increased. Therefore, the holder 2
Due to the deformation of No. 5, there is no problem that sufficient engagement areas with the engagement grooves 41a and 43a of the engagement claws 31 and 33 cannot be secured.

In this embodiment, the central portion of the collar 37 is recessed to a greater extent than the peripheral portion of the central portion of the base portion 35, and two ribs 39 are opposed to each other on the outer peripheral side of the portion. Since the collar 37 is arranged in this state, it is more flexible than the collar 37 formed to be thick over the entire circumference, so that the collar 37 can be easily inserted, and the frictional force between the holder 25 and the inner peripheral surface is small. Therefore, the working students are good.

Further, the above contents are only related to one embodiment of the present invention, and needless to say, the present invention is not limited to the above contents.

For example, in the above-described embodiment, the buffer 1
Although the elliptical shape is used for 5, a rectangular shape may be used. In addition, the engaging groove 41a on the cushioning body 15 side,
43a is provided and the engaging claws 31 and 33 are provided on the holder 25 side, but the reverse configuration is also acceptable.
Further, although the toilet seat has been described in the above-described embodiment, the present invention is applicable not only to the toilet seat but also to the toilet lid, and for example, for cushioning between the door and the wall and various other collision mitigation. It can be applied to the buffer of

Further, the present invention is not limited to collision prevention, but can be applied to various purposes such as a shock absorber for attaching to the bottom of legs of a desk or chair to prevent scratches on the floor.

[0043]

As described above, according to the present invention,
It is possible to provide a shock absorber that can be reliably fixed to a holder without using an adhesive and that can also be prevented from being detached from the holder.

[Brief description of drawings]

FIG. 1 is a diagram showing a deformed state of a cushioning body fitting portion formed on a back surface of a toilet seat.

FIG. 2 is a plan view of the toilet seat according to the embodiment of the present invention.

FIG. 3 is a partial side view showing the side shapes of the toilet seat and the toilet lid according to the embodiment.

FIG. 4 is a sectional view of the toilet seat of FIG.

5 is a view seen from above the cushioning body fitting portion of FIG. 4;

FIG. 6 is a view of the cushioning body according to the embodiment seen from above when the base surface is the bottom surface.

7 is a cross-sectional view of the buffer body of FIG. 6 taken along the line BB ′.

FIG. 8 is a sectional view taken along line CC ′ of the buffer body of FIG.

9 is a view of the buffer body of FIG. 6 viewed from the direction of arrow D. FIG.

10 is a diagram showing a partial cross-sectional shape of the cushioning body of FIG. 6 as seen in the direction of arrow E. FIG.

11 is a cross-sectional view showing a state in which the cushioning body of FIG. 6 is fitted in the cushioning body fitting portion of FIG.

[Explanation of symbols]

 11 Toilet seat 11a Inner peripheral side flange 11b Outer peripheral side flange 13,19 Buffer body fitting part 15,21 Buffer body 17 Toilet lid 23 Fastener 25 Holder 27,29 Arc-shaped part 31,33 Engaging claw 37 Collar 39 Rib 41, 43 arcuate portions 41a, 43a engaging groove

Claims (8)

[Claims] 1. A buffer body, which is fitted into the opening of a holder having an opening having a first snap element provided on an inner peripheral surface thereof, wherein a collar inserted into the opening and an outer peripheral surface of the collar are provided, A second snap element for engaging the first snap element to form a snap-fit condition when the collar is inserted into the opening; At least one rib that is pressed against the inner peripheral surface of the opening when inserted into the opening. 2. The shock absorber according to claim 1, wherein a plurality of the ribs are provided so as to face each other with the collar interposed therebetween, and the ribs extend from a base end portion of the collar along a direction in which the collar is inserted. A buffer body characterized in that 3. The shock absorber according to claim 2, wherein the rib is configured so that the thickness thereof increases from a base end portion of the collar in a direction in which the collar is inserted. body. 4. The shock absorber according to claim 1, wherein the opening has an elongated shape, and the first snap elements are provided on inner peripheral surfaces of both ends of the opening of the holder in a longitudinal direction, The shock absorber, wherein the second snap element is provided at a position corresponding to the first snap element of the shock absorber. 5. The shock absorber according to claim 1, wherein the first snap element is an engagement claw, and the second snap element is an engagement groove. 6. The shock absorber according to claim 1, wherein the first snap element is an engagement groove, and the second snap element is an engagement claw. 7. The shock absorber according to claim 1, wherein the opening has an elongated shape, and the rib is provided at a position where the rib is pressed against a long inner peripheral surface of the opening. Buffer. 8. The shock absorber according to claim 7, wherein when the shock absorber is slid with respect to an object in contact with the shock absorber, the opening of the opening is elongated with respect to the sliding direction. A buffer body, wherein the holder is provided in a posture such that the directions thereof are substantially right angles.