JP7205874B2 - Chain mounting structure - Google Patents

Description

TECHNICAL FIELD The present invention relates to a mounting structure for a chain that connects a plug that closes a drain port and a fixing member.

Bath bodies such as washbasins and bathtubs have drain holes formed at the bottom thereof, and hot water can be stored and drained by attaching and detaching plugs to the drain holes.
The plug has a main body made of an elastic member such as rubber, and a mounting portion made of a resin material such as PP or POM. The attachment portion protrudes upward from the stopper and has a through hole formed in the side surface thereof.
The chain is a ball chain made of stainless steel with double rings at the ends. A double ring is a double ring body made of stainless steel, and is provided at one end or both ends of the chain.

When attaching the stopper and the chain, open the double ring using pliers or a jig, insert the end into the through hole of the attachment part, and push in while rotating the double ring. conduct.

The chain mounting structure described above is not limited to the mounting of the plug and the chain, but can also be used to mount the plug to a fixing member that holds it.

Japanese Unexamined Patent Application Publication No. 2004-202089

The above-described conventional chain mounting structure is complicated because the work is performed while expanding the double ring to the extent that it can be inserted into the through-hole, and the work speed differs depending on the operator's proficiency. In addition, there is a risk that the worker will be injured by the double ring during the installation work.

SUMMARY OF THE INVENTION In view of the above problems, the present invention relates to a chain mounting structure, and an object of the present invention is to improve work efficiency and work safety.

The present invention according to claim 1 is a mounting structure for a chain that connects a plug that closes a drain port and a fixing member,
an engaging portion formed at the end of the chain;
a mounting portion formed on the plug or the fixing member,
the mounting portion includes an elastic claw that engages with the engaging portion;
a retaining structure that prevents the engaging portion from coming off when a force is applied in a direction to separate the chain from the stopper or the fixing member;
The chain mounting structure is characterized in that the retaining structure comprises a guide portion that guides the engaging portion toward the root side of the elastic claw .

The present invention according to claim 2 is a mounting structure for a chain that connects a plug that closes a drain port and a fixing member,
an engaging portion formed at the end of the chain;
a mounting portion formed on the plug or the fixing member,
The mounting portion has an elastic claw that engages with the engaging portion ,
The mounting portion is formed with an operation opening at a position facing the elastic claw for pressing the elastic claw toward the root side to release the engagement between the elastic claw and the engaging portion. This is the mounting structure of the chain.

In the present invention according to claim 3, the mounting portion includes:
Having a groove through which the engaging portion can be inserted,
3. The chain mounting structure according to claim 1, wherein the elastic claw is formed in the groove.

In the present invention according to claim 4, the mounting portion is
4. The plug according to any one of claims 1 to 3 , wherein said plug is provided on said plug that closes said drain and said plug is a rubber plug placed on said drain. This is the chain mounting structure.

In the present invention according to claim 5, the mounting portion includes:
4. The chain mounting structure according to any one of claims 1 to 3 , wherein the fixing member is provided with a heaton arranged near the drain port. be.

ADVANTAGE OF THE INVENTION According to this invention, it becomes possible to simplify the mounting structure of a chain, and to stabilize a working speed regardless of a worker's skill level. Moreover, it becomes possible for the worker to work safely.

1 is a cross-sectional view showing a mounting structure for a chain according to the present invention; FIG. 1 is a perspective view showing a mounting structure for a chain according to the present invention; FIG. FIG. 4 is an exploded cross-sectional view showing a plug; It is (a) sectional drawing (b) top view which shows an attachment part. FIG. 4 is a cross-sectional view showing a process of attaching a chain; FIG. 4 is a cross-sectional view showing a state in which the chain is pulled from the attachment completion state; FIG. 4 is a cross-sectional view showing a chain mounting structure according to a second embodiment;

Hereinafter, the chain mounting structure of the present invention will be described with reference to the drawings. It should be noted that the invention described below is intended to facilitate understanding of the embodiments, and should not be construed as limiting the invention.

As shown in FIGS. 1 and 2, the present invention relates to a structure for attaching a chain attached to a tub body 100 of a washbasin. The tank body 100 has a box-like shape with an open top, and the tank body 100 can store and discharge hot water by attaching and detaching the plug 1 to a drainage port formed at the bottom. Become. A faucet (not shown) and a fixing member 5 are arranged on the edge 101 of the tank body 100 , and the plug 1 and the fixing member 5 are connected by a chain 4 .

As shown in FIG. 3, the plug 1 is a rubber plug composed of a body portion 2 and a mounting portion 3. As shown in FIG.

The main body 2 is made of an elastic material such as rubber, and has a conical shape with a downwardly decreasing diameter and a substantially trapezoidal cross-sectional shape. 21 is formed.
The opening 21 has an inner collar portion 22 formed at the upper end, and the mounting portion 3 is inserted from below. When the mounting portion 3 is inserted, the outer surface of the mounting portion 3 and the inner surface of the opening 21 are in contact with each other in a watertight manner. no. Moreover, the inserted mounting portion 3 is prevented from coming off by the inner flange portion 22 .

As shown in FIG. 4, the mounting portion 3 has a cylindrical tubular portion 31, and a groove portion 32 having a width such that the engaging portion 42 of the chain 4 can be inserted is formed downward from the upper end. ing. As shown in FIG. 4B, the groove 32 divides the tubular portion 31 into two semi-cylindrical tubular portions 31a and 31b in plan view. Further, an elastic claw 33 is formed in the groove portion 32 of the cylindrical portion 31a, and an operation port 35 is opened on the side surface of the cylindrical portion 31b.
The elastic claw 33 protrudes obliquely downward from the tubular portion 31a toward the tubular portion 31b, and its end portion is exposed from the operation port 35 in a side view. Further, the elastic claw 33 is formed with a guide portion 34 as a retaining structure on the lower surface. The guide portion 34 is an inclined surface formed from the end portion of the elastic claw 33 toward the root side, and when a force is applied to the attached chain 4 in a direction to separate it from the attachment portion 3, the engaging portion 42 of the chain 4 is inclined. is guided to the root side of the elastic claw 33 .
The operation port 35 is an opening formed at a position facing the elastic claw 33 on the side surface of the tubular portion 31b, and is formed at a position where the elastic claw 33 is exposed.

The chain 4 is a ball chain in which a plurality of ball-shaped parts 41 are connected, and has engaging parts 42 at both ends thereof.
The engaging portion 42 is a thin metal plate having openings formed at both ends thereof and slits formed in the axial direction from the openings, and the balls 41 are inserted through the openings formed at both ends. , and is attached by being bent so that the openings at both ends are brought into contact with each other.

The fixing member 5 is a heaton made of a cylindrical member arranged on the edge 101 of the tank body 100 and has a mounting portion 3 and a male screw portion formed below the mounting portion 3 .
The mounting portion 3 has the same shape as the mounting portion 3 of the stopper 1, and has a cylindrical portion 31, a groove portion 32, an elastic claw 33, and an operation port 35. As shown in FIG.

As described above, the stopper 1 and the fixing member 5 have the mounting portions 3 of the same shape, and the chains 4 are mounted through the mounting portions 3 . Therefore, in the following description regarding attachment and detachment of the chain 4, the stopper 1 and the fixing member 5 will be described together.

When attaching the chain 4 , the engaging portion 42 of the chain 4 is inserted into the groove portion 32 to engage the engaging portion 42 with the elastic claw 33 . More specifically, as shown in FIG. 5B, when the engaging portion 42 is inserted into the groove portion 32, the end portion of the engaging portion 42 abuts on the upper surface of the elastic claw 33, thereby Push 33 downward. When a space is created between the elastic claw 33 and the cylindrical portion 31 b to allow the engaging portion 42 to pass therethrough, the engaging portion 42 climbs over the elastic claw 33 and is arranged at the lower end of the groove portion 32 . When the engaging portion 42 is arranged at the lower end of the groove portion 32, the elastic claw 33 is restored by its own elastic force, and the engaging portion 42 cannot pass between the elastic claw 33 and the cylindrical portion 31b. By doing so, the attachment of the chain 4 is completed.

When the chain 4 is pulled in the attached state and a force is applied in the direction of separating the chain 4 from the attaching portion 3, the engaging portion 42 contacts the guide portion 34 formed on the lower surface of the elastic claw 33. As shown in FIG. At this time, stress is applied to the elastic claw 33 by the guide portion 34 in a direction opposite to the direction in which the engagement with the engaging portion 42 is released, and the engaging portion 42 is guided to the root side of the elastic claw 33 . Therefore, the engaging portion 42 will not come off from the mounting portion 3 .

On the other hand, when the mounting portion 3 and the chain 4 are to be separated from each other, the elastic claw 33 is pushed toward the tubular portion 31a through the operation opening 35 of the tubular portion 31b using a precision screwdriver or the like, and the elastic claw 33 is pushed toward the root side. A space through which the engaging portion 42 can pass is formed between the tubular portion 31b and the elastic claw 33 by pushing the elastic member 31b back. By pulling out the engaging portion 42 upward through the space, the mounting portion 3 and the chain 4 can be separated.

In the chain mounting structure of the present invention, it is possible to mount the chain simply by inserting the engaging portion 42 into the plug 1 or the groove portion 32 of the fixing member 5 . Therefore, unlike the conventional mounting structure, the complicated process of expanding the double rings using pliers, jigs, etc. is not required, thereby improving productivity and preventing injuries caused by the double rings. . Moreover, since the double ring is not required in the first place, it is possible to reduce the number of members. Furthermore, even if a force is applied in the direction of separating the chain 4 from the stopper 1 or the fixing member 5, the engaging portion 42 of the chain 4 will not be separated from the stopper 1 or the fixing member 5 by the guide portion 34. Absent. On the other hand, when the stopper 1 or the fixing member 5 and the chain 4 are to be separated from each other, the operation port 35 can be used to easily perform the separation work.

The present invention is not limited to the shape of the above embodiment, and various shape changes may be made without departing from the scope of the invention. For example, as in the second embodiment shown in FIG. 7, the ball-shaped portion 41 of the chain 4 may also serve as the engaging portion 42 . In this case, it is not necessary to separately provide the engaging portion 42 on the chain 4, so the number of members can be further reduced.

In the above-described embodiments, the chain mounting structure relates to the attachment of the stopper or fixing member used in the washbasin and the chain. It may be related to the installation of the
Further, in the above embodiment, the plug is a rubber plug having a main body made of an elastic member, but it may be a plug made of a resin member to which a waterproof packing is fitted. Similarly, in the above-described embodiment, the fixing member is a heaton, but any member may be used as long as it holds the plug, and the position where the fixing member is arranged is not limited at all.

Moreover, the material of the mounting portion and the engaging portion does not matter. That is, the elastic claws may be made of a metal material, rubber or the like. As for the material, the structure may be made of a plurality of materials such as only the elastic claw is made of a different material.

Reference Signs List 1 Plug body 2 Main body 21 Opening 22 Inner flange 3 Mounting parts 31, 31a, 31b Cylindrical part 32 Groove 33 Elastic claw 34 Guide part 35 Operation port 4 Chain 41 Ball-shaped part 42 Engagement part 5 Fixing member 100 Tank body 101 edges

Claims (5)

A mounting structure for a chain that connects a plug that closes a drain port and a fixing member,
an engaging portion formed at the end of the chain;
a mounting portion formed on the plug or the fixing member,
the mounting portion includes an elastic claw that engages with the engaging portion;
a retaining structure that prevents the engaging portion from coming off when a force is applied in a direction to separate the chain from the stopper or the fixing member;
A chain mounting structure , wherein the retaining structure comprises a guide portion that guides the engaging portion to the root side of the elastic claw . A mounting structure for a chain that connects a plug that closes a drain port and a fixing member,
an engaging portion formed at the end of the chain;
a mounting portion formed on the plug or the fixing member,
The mounting portion has an elastic claw that engages with the engaging portion ,
The mounting portion is formed with an operation opening at a position facing the elastic claw for pressing the elastic claw toward the root side to release the engagement between the elastic claw and the engaging portion. chain mounting structure. The mounting portion is
Having a groove through which the engaging portion can be inserted,
3. The chain mounting structure according to claim 1, wherein the elastic claw is formed in the groove. The mounting portion is
4. The plug according to any one of claims 1 to 3 , wherein said plug is provided on said plug that closes said drain and said plug is a rubber plug placed on said drain. Chain mounting structure. The mounting portion is
4. The chain mounting structure according to any one of claims 1 to 3 , wherein a heaton is provided on said fixing member and said fixing member is arranged in the vicinity of said drain port.

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