JPH1113721A - Cap for closing through-hole - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cap for closing a through-hole to have excellent workability to mount a cap on a through-hole part and facilitate removal after mounting. SOLUTION: This cap 1 is a cap to close a through-hole such that a body member 10 to close a through-hole is arranged on one side of the through-hole of a given thickness portion, a lock member 20 to lock the body member 10 is arranged on the other side of the through-hole part, and two members are secured in a pressure bonding state from both sides of the through-hole. In the body member 10, luck claws 14 are arranged at the inner sides of respective wall parts 12 erected with a clearance therebetween on the back of a cover part 11 to cover the through-hole. A lock piece 15 to lock the cover part 11 at the through-hole is arranged on the outer side of each wall part 12. The lock member 20 is formed such that a lock cover 21 to cover the through-hole is arranged at a shaft part 22 having an engaging protrusion 24 engaged with the lock claw 14 of each wall part 11.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cap for closing a through hole (cap assembling tool), and more particularly, to a cap for closing a through hole such as a water tank or a plate-like body. It is related to.

[0002]

2. Description of the Related Art As shown in FIG.
(Closing member) 1 for closing through-hole portion 101 such as
Reference numeral 02 denotes a screw member 106 including a shaft portion 104 provided with a male screw 103 and a disk-shaped stopper cover 105, and a disk-shaped lid portion 1
The main body member 113 is provided with a female thread 112 on the inner periphery of the cylindrical portion 111 protruding from the main body 10.

[0003] As shown by the imaginary line in FIG.
13 and the screw member 106 on the other side,
By screwing the male screw 103 of the shaft portion 104 into the female screw 112 of the eleventh portion, the through-hole portion 101 can be closed.

[0004] As a cap for closing a through hole of a plate member, a clip structure disclosed in Japanese Utility Model Publication No. 57-9531 is known. As shown in FIGS. 13 to 15, the clip structure 120 includes a male clip 124 including a shaft portion 122 having a flange portion 121 and a distributed engaging member that locks the shaft portion 122 around a shaft hole 126 of the flange portion 125. It comprises a female clip 129 having a stop 127.

[0005] The shaft portion 122 of the male clip 124 has two stop grooves 123A, each having a half-pitch shifted from each other.
123B is provided. The female clip 129 is provided at the circumferential end of the divided locking portion (arc portion) 127 provided on the flange portion 125 with the stop grooves 123A, 123 of the male clip 124.
A locking hook 128 that engages with B is formed.

FIG. 16 shows a mounting state of the clip structure 120 when the diameter of the through-hole (mounting hole) 132 of the plate member 131 is smaller than the outer diameter of the locking portion 127 of the female clip 129. FIG. The diameter of the hole 132 is the locking portion 127
3 shows an attached state of the clip structure 120 when the outer diameter is larger than the outer diameter of the clip structure 120. As shown in FIGS. 16 and 17, the through hole 132 of the plate member 131 is closed by the engagement of the male clip 124 and the female clip 129.

[0007]

However, FIG.
In the conventional cap 102 described above, the screw member 106 must be rotated at the time of mounting, and there is a problem that the mounting workability and the removal workability at the installation site are not good. The clip structure 120 shown in FIG.
Does not consider a means for removing the male clip 124 and the female clip 129 after the assembly, so that the removing operation is difficult.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a cap for closing a through-hole portion, which is excellent in workability in mounting and easy to remove after mounting.

[0009]

According to a first aspect of the present invention, there is provided a body member for closing a through-hole on one side of a through-hole formed at a predetermined thickness. A stop member for stopping the main body member is disposed on the other side of the through hole,
A cap that closes the through-hole portion by fastening both members in a crimped manner from both sides of the through-hole portion, wherein the main body member is erected at an interval on the back surface of the lid portion that covers the through-hole portion. A locking claw is provided inside each of the wall portions, and a stop piece for stopping the lid portion to the through-hole portion is provided outside each of the wall portions, and the locking member is a locking claw of each of the wall portions. A shaft having an engaging projection that engages with a stopper lid that projects outward and covers the through-hole.

According to the first aspect of the present invention, the main body member disposed on one side of the through-hole portion and the stop member disposed on the other side of the through-hole portion are brought close to each other and pushed in, so that the main body member has two walls. The engaging projections of the stopper member shaft portion are inserted between the engaging claws, and the two members are fixed in a crimped manner from both sides of the through hole portion. The main body member pushed into the through-hole is positioned in the through-hole by the stopper piece of the wall. The through-hole on the side where the main body member is arranged is covered and closed by a lid, and the through-hole on the side where the stopper is arranged is covered and closed by a stopper.

According to the first aspect of the present invention, when removing the cap with the through hole closed, the stopper of the stopper member can be rotated by a tool to disengage the two members. The stoppers on both wall portions of the main body member prevent the main body member from rotating in the through-hole portion, so that the rotating operation for removal can be performed favorably.

A second aspect of the present invention for solving the above-mentioned problems.
According to the invention of claim 1, in the invention according to claim 1, the locking member is provided with a locking claw inside each wall portion standing upright with a space on the back surface of the stopper cover covering the through hole, and each wall portion is provided with a locking claw. A stopper is provided on the outer side of the stopper to stop the stopper cover in the through hole, and the main body member projects outward from a shaft having an engaging projection for engaging with a locking claw of each of the wall portions. A lid portion for covering the cover is provided.

According to the second aspect of the present invention, the main body member provided on one side of the through-hole portion and the stop member provided on the other side of the through-hole portion are brought close to each other and pushed in, so that the two wall portions of the stop member are provided. The engaging projections of the main body member shaft portion are inserted between the locking claws, and the two members are pressed and fixed from both sides of the through hole portion. The stop member pushed into the through-hole is positioned in the through-hole by the stop piece of the wall. The through-hole on the side where the stop member is arranged is covered and closed by a lid, and the through-hole on the side where the body member is arranged is covered and closed by a stop lid.

When removing the cap with the through hole closed, the stopper of the main body member can be rotated with a tool to disengage the two members. The stop pieces on both wall portions of the stop member serve to prevent the stop member from rotating in the through-hole portion, so that the rotating operation for removal can be performed satisfactorily.

A third aspect of the present invention for solving the above-mentioned problems.
The invention according to claim 1 is characterized in that, in the invention of claim 1 or 2, the tool engaging means is provided on one of the lid and the stopper.

According to the third aspect of the present invention, when removing the cap that closes the through-hole, a predetermined tool is engaged with the tool engaging means and rotated to remove the lid or the stop lid. Can be easily removed.

[0017]

FIG. 1 shows an embodiment of the present invention.
This will be described with reference to FIG. This embodiment is an example of a case where one of the pipe through-holes 32 on the left and right side walls 31 of the water tank 30 of the flush toilet shown in FIG. 6 is closed.

FIG. 1 shows a cap 1 for closing a through hole 32 of a water tank 30. The cap 1 includes a main body member 10 for closing the through hole 32 and a stopper member 20 for stopping the main body member 10. As shown in FIG. 1 to FIG. 3, the main body member 10 has two arc-shaped walls 12 erected on the back surface of a circular disk-shaped lid 11 that is larger than the through-hole 32.

As shown in FIG. 2, the lid portion 11 is formed in a concave surface on the back side and has a curved surface having an arcuate cross section, so that the lid portion 11 can be in close contact with the peripheral portion of the through hole portion 32 of the side wall 31 when the through hole portion 32 is closed. Has been. As shown in FIG.
It is a one-quarter arc body, and is erected on the back surface of the lid part 11 so as to face each other with an interval of a quarter arc on both sides.

Each of the wall portions 12 is provided with a locking claw 14 for engaging with a thread 24 of a shaft portion 22 of a stopper member 20 (described later). The locking claw 14 of the present embodiment is
Is formed over the entire width of the wall portion 12 at the inner upper end.

As shown in FIGS. 2 and 3, a plurality of upper and lower plate-shaped stopper pieces 15 projecting horizontally outward are formed at both outer end portions of each wall portion 12. . The protruding length of the stopper piece 15 is set to a length capable of being pressed against the inner periphery of the through hole 32 to be applied. As shown in FIGS. 1, 2 and 3, a reinforcing piece 13 for firmly joining the wall 12 to the lid 11 is attached to each lower position of the stopper 15.
The main body member 10 in a state where the stopper piece 15 is pressed against the through-hole portion 32
Performs the function of positioning the insertion position in the through-hole portion 32 and preventing rotation.

The stop member 20 is shown in FIGS.
As shown in the figure, a circular disk-shaped stopper lid 21 that protrudes outward and is larger than the through hole 32 is provided at the tip of the shaft portion 22, and the outer peripheral surface of the shaft portion 22 has a spiral thread 24. (Corresponding to the engagement projection of the first invention).

As shown in FIG. 5, the shaft portion 22 in the present embodiment is formed in a cylindrical shape, a cross reinforcing member 23A is provided in the tube, and the shaft portion 22 and the lid portion 11 have a cross shape. In the outer circumference on each extension of the reinforcing member 23A, the reinforcing piece 23
B is firmly joined.

Although the thread 24 of the shaft 22 is formed in a continuous spiral around the outer periphery of the shaft 22, the thread 24 has a number of protrusions (not shown) formed at symmetrical positions of the shaft 22. )
A portion in which the engaging projection is formed so as to be able to engage with the locking claw, and the stopper member 20 is rotated by the tool engaging means 25 so that the engaging projection of the shaft portion 22 is not provided. It is also possible to adopt a structure in which the engagement of the locking claws can be released and the main body member 10 and the stopper member 20 can be removed.

A tool engaging means 25 for engaging a tool is formed at the center of the outer surface of the stopper 21 in the stopper 20. The tool engagement means 25 is, for example, as shown in FIG.
As shown in (a), a plus-shaped tool engaging means 25, FIG.
0 (b), the minus-shaped tool engaging means 26,
As shown in FIG. 10C, a hexagonal tool engaging means 27 or the like is formed in a concave shape to be engaged with a tool. The tool engaging means 25 of the present embodiment is formed in a plus shape as shown in FIGS.

The tool engaging means 25, 26, 27 are not limited to the concave shape, but may be convex portions capable of engaging with a tool capable of rotating the main body member 10.

The main body member 10 and the stopper member 20 are each integrally formed of a synthetic resin.

The fastener 1 according to the present embodiment is different from the fastener 1 shown in FIG.
The through-hole portion 3 not involved in the piping of the side wall 31 of the water tank 30 shown in FIG.
Used to close 2

The water tank 30 is made of earthenware. As shown in FIG. 7, the main body member 10 having the wall 12 facing the through hole 32 is disposed outside the through hole 32 of the water tank 30. Hole 3
2, a stopper member 2 with the shaft portion 22 facing the through hole portion 32.
0 is placed.

The main body member 10 and the stopper member 20 are formed with through holes 32.
Can be engaged by pushing in from both sides. That is, when both members are pushed in from the outside and the inside of the through-hole portion 32, the shaft portion 32 of the stop member 20 is inserted between the two wall portions 12 of the main body member 10, and the cover portion 11 and the stop cover 21 are in the state shown in FIG. Then, the state shown in FIG. 9 covering the end face of the through-hole portion 32 is established, and the thread 24 of the shaft portion 22 is engaged with the locking claw 14 of the both wall portions 12 and fixed.

By fixing the two members, the lid 11 is brought into close contact with the outside of the through hole 32, and the stop lid 21 is brought into close contact with the inside of the through hole 32, so that the through hole 32 is closed. When the wall 12 of the main body member 10 is inserted into the through-hole 32, the stopper 15 of the wall 12 is in elastic contact with the inner peripheral surface of the through-hole 32.

The water tank 30 is provided with a pipe in a through hole 32 on the open side. In the tank, water is stored to a predetermined water level below the through hole 32 and used. 32
Is closed by the cap 1, so that water leakage from this portion is prevented. That is, since the stopper lid 21 of the stopper member 20 is pressed against the inner end surface of the through hole 32, when water lands on the cap 1 of the water tank 30 or in the vicinity thereof, the stopper closed by the cap 1. Water leakage from the hole 32 is prevented.

When the cap 1 having the through hole 32 closed is removed for convenience, the tool is inserted into the tool engaging means 25 of the stopper member 20 and the tool is rotated in the direction in which the screw thread 24 is returned. The stop member 20 is prevented from rotating together with the through hole 32 by the elastic contact of the stop piece 15, so that the stop member 20 can be easily removed from the main body member 10.

The main body member 10 is centered on the through-hole 32 because the plurality of stopper pieces 15 resiliently contact the inner periphery of the through-hole 32, even if the diameter of the through-hole 32 is slightly different. Good mounting condition. Also, since the cap 1 is attached by the engagement of the main body member 10 and the stopper member 20,
Even if there is a slight difference in the thickness of the side wall part 31, the through-hole part 32 can be satisfactorily closed.

The body member 10 of the cap 1 is shown in FIG.
As shown in FIG. 5, a plurality of upper and lower plate-shaped stoppers 15 projecting outward (horizontally) are formed on the wall 12 on the back surface of the lid 11. 15 is not limited to this structure, and the main body member 10 shown in FIG.
A, as shown in FIG.
5A may be attached. This body member 10A
Similarly to the above-described main body member 10, when inserted into the through-hole portion 23, the stopper piece 10 is resiliently provided on the inner peripheral surface of the through-hole portion 32 to perform the positioning of the main body member 10 and the function of preventing rotation. obtain.

A body member 10 for forming the cap 1
Is provided with a locking claw 14 inside each of the wall portions 12 erected at intervals on the back surface of the lid portion 11, and provided with a stopper piece 15 outside each of the wall portions 12. A shaft portion 22 having a thread 24 (engaging projection) for engaging with the locking claw 14 of the main body member 10 is provided on the back surface of the main body member 10 so that both members are pressed and engaged. A structure may be adopted in which a shaft portion 22 having a mating projection is provided, and each wall portion 12 having a locking claw 14 and a stopper piece 15 is provided on the stopper member 20 side so that both are engaged by pressing (not shown).

Although the cap 1 of the above-described embodiment is used to close the through hole 32 of the water tank 30, the cap 1 of the present invention is not limited to this case. In the case where the through-hole portion of the plate is closed or closed (not shown) or applied to a common through-hole of a plurality of stacked plate members, the through-hole portion is sealed. It can also be used when closing a plurality of plates and stopping by overlapping a plurality of plates (not shown).

The through-hole closed by the cap of the present invention is
When the through hole is required, the attached cap can be easily removed, which is convenient.

[0039]

According to the first or second aspect of the present invention, it is possible to provide a cap for closing the through-hole portion which is excellent in workability in mounting and easy to remove after mounting.

According to the third aspect of the present invention, the cap attached to the through hole can be easily removed with a tool.

[Brief description of the drawings]

FIG. 1 is a perspective view of a main body member and a stopper member constituting a cap according to an embodiment of the present invention.

FIG. 2 is a partially cutaway side view of a main body member.

FIG. 3 is a plan view of the main body member of FIG. 2;

FIG. 4 is a partially cutaway side view of the stopper member.

FIG. 5 is a plan view of the stop member of FIG. 4;

FIG. 6 is a perspective view of a water tank to which a cap is applied.

FIG. 7 is a view showing a process of attaching a cap in which a main body member and a stopper member are arranged in a through hole.

FIG. 8 is a cross-sectional view of an initial step of closing a through hole with a cap.

FIG. 9 is a sectional view in which a through hole is closed by a cap.

FIGS. 10 (a), (b), and (c) are shapes of the tool engaging means in the main body member.

FIG. 11 is a perspective view showing another structure of the main body member.

FIG. 12 is a perspective view of a conventional cap.

FIG. 13 is a side view of another conventional cap.

FIG. 14 is a plan view of a main body member of the cap of FIG.

FIG. 15 is a plan view of a stopper for the cap of FIG. 13;

FIG. 16 is a cross-sectional view of the plate-like body in which a through-hole is closed by the cap of FIG. 13;

FIG. 17 is another cross-sectional shape diagram in which the through hole of the plate-like body is closed by the cap of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Cap 10 Main body member 11 Lid part 12 Wall part 14 Locking claw 15 Stop piece 20 Stop member 21 Stop lid 22 Shaft part 24 Thread 25 Tool engagement means 30 Water tank 32 Through hole

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Ryosuke Matsunaga 1 Hirukiike, Haruki, Togo-cho, Aichi-gun, Aichi, Japan Togo Seisakusho Co., Ltd. Inoac Co., Ltd. Sakurai Office

Claims (3)

[Claims] 1. A body member for closing a through-hole portion is disposed on one side of a through-hole portion formed at a predetermined thickness portion, and a stop member for stopping the main body member is disposed on the other side of the through-hole portion. A cap for closing the through-hole portion by fastening both members in a crimped manner from both sides of the through-hole portion, wherein the main body member is erected with an interval on the back surface of the lid portion covering the through-hole portion. A locking claw is provided inside each of the wall portions, and a stop piece for stopping the lid portion to the through-hole portion is provided outside each of the wall portions. The locking member is a locking claw of each of the wall portions. A cap for closing a through-hole portion, wherein a stopper lid that protrudes outward and covers the through-hole portion is provided on a shaft portion having an engagement projection that engages with the cap. 2. A locking member is provided on the inside of each wall portion standing upright with an interval on the back surface of the locking cover covering the through hole, and a locking lid is provided on the outside of each wall portion. The main body member has a cover portion that protrudes outwardly from a shaft portion having an engagement protrusion that engages with a locking claw of each of the wall portions and covers the through-hole portion. The cap for closing a through hole according to claim 1, wherein the cap is provided. 3. The cap for closing a through hole according to claim 1, wherein a tool engaging means is provided on one of the lid and the stopper lid.