WO2018096753A1

WO2018096753A1 - Hinge lock mechanism

Info

Publication number: WO2018096753A1
Application number: PCT/JP2017/031009
Authority: WO
Inventors: 直久澁澤; 信孝矢島
Original assignee: 株式会社Ｔｏｋ
Priority date: 2016-11-24
Filing date: 2017-08-29
Publication date: 2018-05-31
Also published as: DE112017005939T5; JPWO2018096753A1; JP6691229B2

Abstract

Provided is a hinge lock mechanism that reduces the cost and work load for production of a toilet or a toilet seat and a toilet seat cover. A hinge lock mechanism according to one embodiment is configured from a support column 16, a disk hook 15, and a second inner diameter part 20a2, 30a2. This hinge lock mechanism prevents a hinge device 10, 10' from slipping out of an attachment hole 20a, 30a into which a shaft part 14 thereof is inserted, the hinge device 10, 10'supporting a toilet seat and a toilet bowl in such a manner to allow these objects to be freely opened and closed and supporting a toilet seat cover and the toilet bowl in such a manner to allow these objects to be freely opened and closed. When the shaft part 14 is inserted into the attachment hole 20a, the shaft part 14 fits into a first inner diameter part 20a1 and the disk hook 15, which is provided at the leading end of the shaft part 14, is inserted into the second inner diameter part 20a2. At this time, because of the elasticity thereof, the disk hook 15 bends and elastically deforms to fit into the second inner diameter part 20a2. Consequently, the outer circumference of the disk hook is caught on the inner circumference of the second inner diameter part 20a2.

Description

Hinge lock mechanism

The present invention relates to a hinge lock mechanism that prevents a hinge device that supports an object from being openable and closable from coming out of a mounting hole into which a shaft portion is inserted.

Conventionally, as this type of hinge lock mechanism, there is one in the toilet toilet seat mounting structure disclosed in Patent Document 1, for example.

In the toilet toilet seat mounting structure in the same document, after the adapter member of the hinge device having a shaft shape is inserted into the mounting hole of the holder portion in the toilet seat or toilet lid, the leg portion of the spring clip is inserted into the groove provided in the adapter member. Fitted. At this time, the leg portion of the spring clip is passed through the insertion hole opened to the side of the holder portion of the toilet seat or toilet lid. The leg portion of the spring clip is fitted into the groove provided in the adapter member through the insertion hole, so that the hinge device cannot be removed from the attachment hole and is fixed to the toilet seat or the toilet lid.

German Patent Application Publication No. 10051805

However, in the above-described conventional hinge lock mechanism disclosed in Patent Document 1, it is necessary to prepare a fixing tool such as a spring clip separately from the hinge device in order to prevent the hinge device from coming out of the attachment hole of the holder portion. In addition, in order to fit the spring clip into the groove of the adapter member, it is necessary to provide an insertion hole leading to the attachment hole on the side of the toilet seat or the toilet lid. Therefore, the conventional hinge lock mechanism requires a management process for managing a fixture such as a spring clip separately from the hinge device when a toilet using the hinge device is manufactured. Moreover, the manufacturing process which provides an insertion hole in a holder part at the time of manufacture of a toilet seat and a toilet lid is also needed. For this reason, conventionally, these management processes and processing processes have been a burden on the cost and work of manufacturing toilets, toilet seats, and toilet lids.

The present invention has been made to solve such problems,
In the hinge lock mechanism that prevents the hinge device that supports the object from being freely opened and closed from coming out of the mounting hole into which the shaft portion is inserted,
A first inner diameter portion having an inner diameter shape that fits into the shaft portion, and a second inner diameter portion that has an inner diameter smaller than the outer diameter of the shaft portion and opens at the deepest portion of the first inner diameter portion and continues to the first inner diameter portion. Formed in the mounting hole,
Provided with a locking member at the tip of the shaft portion that has an outer diameter equal to or greater than the inner diameter of the second inner diameter portion, has elasticity, and is inserted into the second inner diameter portion and the outer periphery is hooked on the inner periphery of the second inner diameter portion. It is characterized by.

According to this configuration, when the shaft portion of the hinge device is inserted into the mounting hole, the shaft portion is fitted into the first inner diameter portion, and the locking member provided at the tip of the shaft portion is inserted into the second inner diameter portion. It is. At this time, the locking member is bent and elastically deformed by the elasticity and enters the second inner diameter portion, and the outer periphery thereof is caught by the inner periphery of the second inner diameter portion. The shaft portion provided with this locking member at the tip is not pulled out from the mounting hole because the locking member is caught on the inner periphery of the second inner diameter portion and counters this pulling force even if a force to pull out from the mounting hole is applied. The hinge device cannot be removed from the mounting hole. Therefore, the hinge device can be prevented from being removed from the mounting hole without using a conventional fixture such as a spring clip. For this reason, it is not necessary to prepare a fixture such as a spring clip separately from the hinge device, and the management process for managing the fixture such as a spring clip separately from the hinge device can be reduced. In addition, an insertion hole for passing a fixing tool such as a spring clip through the holder portion becomes unnecessary, and the processing step of providing the insertion hole in the holder portion can be reduced. As a result, it is possible to reduce the cost and work load at the time of manufacturing a toilet using a hinge device and at the time of manufacturing a toilet seat and toilet lid.

Further, the present invention provides a locking member, a disk-shaped member having a plurality of protrusions formed on the outer periphery, a disk-shaped member having a plurality of notches formed on the outer periphery, or a disk having a circular outer periphery. The outer periphery is inclined toward the shaft portion side.

According to this configuration, when a force is extracted from the mounting hole to the shaft portion, the outer periphery of the locking member is engaged with the inner periphery of the second inner diameter portion. For this reason, the force with which the locking member opposes the force for pulling out the shaft portion increases, and the hinge device does not come out of the mounting hole firmly. Further, since the outer periphery of the locking member is inclined toward the shaft portion, the outer periphery of the locking member is sharply bitten by the inner periphery of the second inner diameter portion when a force for extracting the shaft portion from the mounting hole is applied. For this reason, the hinge device does not come out of the mounting hole more firmly. Further, if the outer periphery of the locking member is inclined toward the shaft portion side, when the shaft portion is inserted into the mounting hole, the locking member smoothly enters the second inner diameter portion and can be incorporated into the mounting hole of the hinge device. Will improve.

Further, in the present invention, a support column that has an outer diameter smaller than the inner diameter of the second inner diameter portion and is inserted into the second inner diameter portion is formed to protrude from the tip of the shaft portion,
The locking member is supported by the support column and attached to the tip of the shaft portion.

According to the present configuration in which the locking member is attached to the distal end of the shaft portion via the support column, it is easy to attach the locking member to the distal end of the shaft portion, and the bending allowance of the locking member is reduced. It can be secured on the part side.

Further, the present invention is characterized in that the locking member is attached to the support column so as not to come off in the axial direction of the shaft portion from the support column and to be freely rotatable on the support column.

According to this configuration, even when the locking member is hooked on the inner periphery of the second inner diameter portion and fixed to the inner periphery of the second inner diameter portion, the support column that supports the locking member is In a rotatable state. Therefore, the shaft portion provided with the support column at the tip can be rotated independently of the locking member even when the locking member is fixed to the inner periphery of the second inner diameter portion, and the hinge device is opened and closed. Rotates with one object to support freely. For this reason, the second inner diameter portion of the mounting hole is formed in an object (for example, toilet seat) different from one object (for example, toilet seat) supported by the hinge device so as to be openable and closable. When fixed, even if the shaft portion fitted to the first inner diameter portion of the mounting hole formed in one object rotates together with the one object, the locking member does not rotate as the shaft portion rotates. Therefore, when the locking member rotates as the shaft portion rotates, friction is generated between the locking member and another object to which the locking member is fixed, and the other object is not damaged. Also, even if another object rotates and the locking member rotates together with another object, the shaft portion does not rotate along with the rotation, so that the hinge device is affected by the rotation of the other object. There is no.

Further, the present invention provides a support column formed separately from the shaft portion, a male screw is formed on the outer periphery, and a female screw formed on the inner periphery of a screw hole opened in the axial direction of the shaft portion at the tip of the shaft portion. It is characterized by being attached to the tip of the shaft portion by screwing with a screw.

According to this configuration, since the support column formed separately from the shaft portion is screwed onto the tip of the shaft portion, the support column is rotated by rotating the support column relative to the shaft portion. The length protruding from the tip of the part can be adjusted. For this reason, the position where the locking member is hooked and fixed to the inner periphery of the second inner diameter portion can be set to a desired position according to the depth of the second inner diameter portion. Further, according to the actual shape of the second inner diameter portion, the fixing position of the locking member can be set to a depth that allows the locking member to be hooked on the inner periphery of the second inner diameter portion.

Further, according to the present invention, the support column is formed separately from the shaft portion, and is elastically housed in the opening portion of the shaft portion so as to be freely inserted into and removed from the opening portion opened in the axial direction of the shaft portion. Is biased toward the deep side of the second inner diameter portion.

According to this configuration, in a state where the shaft portion is inserted into the mounting hole and the locking member is inserted into the second inner diameter portion, the support column is formed on the deep side of the second inner diameter portion by the elastic member built in the opening portion. By being biased, the locking member is also biased toward the deep side of the second inner diameter portion. For this reason, after assembling into the mounting hole of the hinge device, the locking member is always biased toward the deep side of the second inner diameter portion, so that the locking member does not come out of the second inner diameter portion. Therefore, the holding stability of the locking member on the inner periphery of the second inner diameter portion is improved. In addition, when the locking device at the tip of the shaft hits the periphery of the mounting hole when the hinge device is assembled into the mounting hole, the locking member is temporarily retracted, so this retraction serves as a guide for inserting the tip of the shaft into the mounting hole. Thus, it becomes easier to insert the tip of the shaft portion into the mounting hole, and the assemblability of the hinge device into the mounting hole is improved.

According to the present invention, it is possible to reduce a management process for managing a fixture such as a spring clip separately from the hinge device, and a processing process for providing an insertion hole in the holder portion. The cost and work burden during the production of the toilet lid are reduced.

(A) is a front view of the hinge apparatus with which the hinge locking mechanism by one Embodiment of this invention was applied, (b) is a side view. It is a perspective view of the hinge apparatus shown in FIG. (A) is the front view of one holder part formed in a toilet seat, (b) is the sectional drawing, (c) is sectional drawing of the holder part by the modification, (d) is formed in a toilet seat Sectional drawing of the other holder part, (e) is the front view. (A) is a side view of the vicinity of the tip of the shaft unit constituting the hinge device shown in FIG. 1, (b) is a front view of a disk hook attached to the tip of the shaft, and (c) is a side view thereof. is there. (A) is a partially broken side view of a hinge lock mechanism according to an embodiment before insertion into the mounting hole of the shaft portion, and (b) is a hinge lock according to one embodiment after insertion into the mounting hole of the shaft portion. It is a partially broken side view of a mechanism. (A) is a partially broken side view of a hinge device to which a hinge locking mechanism according to a first modification of one embodiment is applied, and (b) is a hinge locking mechanism according to a second modification of one embodiment. It is a partially broken side view of the hinge device. (A) is a front view of a modified example of the disc hook shown in FIGS. 4 (b) and (c), (b) is a side view thereof, and (c) is a front view of another modified example of the disc hook, (D) is the side view, (e) is a side view of the vicinity of the tip of the shaft unit alone showing a modification of the support column shown in FIG. 4 (a).

Next, a mode for carrying out the present invention in which the hinge lock mechanism according to the present invention is applied to a hinge device of a Western style toilet will be described.

1 (a) and 1 (b) are a front view and a side view of a hinge device 1 to which a hinge lock mechanism according to an embodiment of the present invention is applied. FIG. 2 is a perspective view of the hinge device 10, 10 '.

The

hinge devices

10 and 10 ′ are configured by integrally forming an attachment / detachment portion 11 and a rotary damper portion 12 in one case 13 made of metal, resin, or the like. A pair of hinge devices 10 and 10 'in a Western-style toilet are used. A hinge device 10 is attached between a toilet seat and a toilet object, and a hinge device 10' is attached between a toilet lid and a toilet object. Then, the toilet seat and the toilet lid, which are one object, are supported to be openable and closable with respect to the toilet which is the other object. A toilet pin to which the toilet seat / toilet lid unit is attached is provided with a hinge pin (not shown), and the attachment / detachment portion 11 of the

hinge device

10, 10 ′ is inserted into the attachment / detachment hole 11a opened on the bottom surface thereof. And is attached to and detached from the toilet.

3A and 3B are a front view and a sectional view of one holder portion 20 formed on the toilet seat, and FIGS. 3D and 3E are views of the other holder portion 30 formed on the toilet seat. It is sectional drawing and a front view.

The shaft portion 14 protruding from the end of the rotary damper portion 12 is inserted into the attachment holes 20a and 30a of the

holder portions

20 and 30 after passing through the attachment holes (not shown) of the toilet lid.

The first inner diameter portion 20a1 and the second inner diameter portion 20a2 are formed in the mounting hole 20a. The first inner diameter portion 20 a 1 has an inner diameter shape that fits into the shaft portion 14. The shaft portion 14 is formed of a metal, a resin, or the like, and includes a guide curved surface portion 14a whose arc-shaped peripheral surfaces face each other and a flat surface portion 14b whose planes face each other in parallel. An arc part 20a11 having a shape corresponding to the guide curved surface part 14a and a wall part 20a12 facing each other corresponding to the flat part 14b are formed on the inner periphery of the first inner diameter part 20a1. The second inner diameter portion 20a2 has a hollow cylindrical shape having an inner diameter φ2 (φ2 <φ11) smaller than the outer diameter φ11 of the guide curved surface portion 14a in the shaft portion 14, and the first inner diameter portion is formed at the deepest portion of the first inner diameter portion 20a1. Opening is continued to the portion 20a1. The second inner diameter portion 20a2 may be formed through the holder portion 20 as shown in the cross-sectional view of FIG.

Also, a first inner diameter part 30a1 and a second inner diameter part 30a2 are formed in the mounting hole 30a. The second inner diameter portion 30a2 has the same opening shape as the second inner diameter portion 20a2 of the mounting hole 20a, and may be formed through the holder portion 30 as shown in FIG. However, the first inner diameter portion 30a1 corresponding to the first inner diameter portion 20a1 has a hollow cylindrical shape having the same diameter as the arc portion 20a11, and is a wall like a wall portion 20a12 that fits into the flat portion 14b of the shaft portion 14. Does not have a part. An attachment hole (not shown) of the toilet lid is provided in communication with the attachment hole 30a of the toilet seat. The attachment hole (not shown) of the toilet lid has a first opening (not shown) having the same opening shape as the first inner diameter portion 20a1. One inner diameter portion is formed. The second inner diameter portion 30a2 opens at the deepest portion of the first inner diameter portion 30a1 in connection with the first inner diameter portion and the first inner diameter portion 30a1 (not shown).

The shaft portion 14 has a disk hook 15 as a locking member at the tip. The disk hook 15 is a front view shown in FIG. 4B and a side view shown in FIG. 4C, and is made of a metal disk-like member having a plurality of convex portions 15a formed on the outer periphery, and the outer periphery is a shaft portion. It is inclined to the 14 side. Moreover, it is mirror-symmetrical in front view. The disk hook 15 has an outer diameter φ3 (φ3 ≧ φ2) equal to or greater than the inner diameter φ2 of the second inner diameter portions 20a2 and 30a2 of the mounting holes 20a and 30a, and has elasticity, and the second inner diameter portions 20a2 and 30a2 The outer periphery is caught by the inner periphery of the second inner diameter portions 20a2, 30a2.

In the present embodiment, as shown in the side view of FIG. 4A, a columnar support column 16 inserted into the second inner diameter portions 20a2 and 30a2 protrudes from the tip of the shaft portion 14. The support column 16 has an outer diameter φ4 (φ4 <φ2) smaller than the inner diameter φ2 of the second inner diameter portions 20a2 and 30a2. In the present embodiment, this outer diameter φ4 is 50% or less (φ4 ≦ 0.5 × φ11) of the outer diameter φ11 of the guide curved surface portion 14a in the shaft portion 14, and 70% of the outer diameter φ12 of the plane portion 14b. The following is set (φ4 ≦ 0.7 × φ12). The disk hook 15 is supported by the support column 16 and attached to the tip of the shaft portion 14. In this embodiment, a cylindrical caulking allowance 16a having a diameter smaller than that of the support column 16 at the tip of the support column 16 is a projection length L (= 1.5 t) that is 50 to 80% larger than the thickness t of the disk portion of the disc hook 15. ~ 1.8t). The disc hook 15 is attached to the support column 16 by inserting a caulking allowance 16a into a hole 15b opened in the center of the disc portion of the disc hook 15 and out of the tip end of the caulking allowance 16a protruding from the thickness t of the disc portion of the disc hook 15. The periphery is crushed in a direction extending to the outer periphery by spin caulking, press caulking, or the like. By this caulking, the disc hook 15 is attached to the support column 16 so as not to come off from the support column 16 in the axial direction of the shaft portion 14 and to be rotatable to the support column 16.

The support column 16, the disk hook 15, and the second inner diameter portions 20a2 and 30a2 constitute a hinge lock mechanism according to an embodiment of the present invention. In the hinge lock mechanism, the hinge devices 10 and 10 'that support the opening and closing of the toilet seat and the toilet bowl and between the toilet lid and the toilet bowl are removed from the mounting holes 20a and 30a into which the shaft portion 14 is inserted. To prevent.

FIG. 5A is a partially broken side view of the hinge device 10 before the shaft portion 14 is inserted into the mounting hole 20a of the holder portion 20, and FIG. 5B shows the shaft portion 14 having the mounting hole 20a. It is a partially broken side view in the state after inserting in. In FIG. 5, the same parts as those in FIG.

When the shaft portion 14 of the hinge device 10 is inserted into the mounting hole 20a from the state shown in FIG. 5A, the shaft portion 14 is fitted to the first inner diameter portion 20a1 as shown in FIG. 5B. At the same time, the disc hook 15 provided at the tip of the shaft portion 14 is inserted into the second inner diameter portion 20a2. At this time, the disk hook 15 is bent and elastically deformed by its elasticity and enters the second inner diameter portion 20a2, and the outer periphery thereof is hooked on the inner periphery of the second inner diameter portion 20a2. The shaft portion 14 having the disc hook 15 at the tip end is opposed to the pulling force by the disc hook 15 being hooked on the inner periphery of the second inner diameter portion 20a2 even if a force to pull out from the mounting hole 20a is applied. The hinge device 10 cannot be removed from the mounting hole 20a.

Similarly, in the hinge device 10 ', the shaft portion 14 is inserted into the attachment hole 30a, and the disc hook 15 is inserted into the second inner diameter portion 30a2, so that the hinge device 10' cannot be removed from the attachment hole 30a. When the hinge devices 10 and 10 'are pulled out from the mounting holes 20a and 30a with a force larger than the opposing force of the disk hook 15, the mounting holes 20a and 30a are plastically deformed and the hinge devices 10 and 10' are removed from the

holder portions

20 and 30. Can be removed.

Therefore, according to the hinge lock mechanism according to the present embodiment, the hinge devices 10 and 10 'can be prevented from being detached from the mounting holes 20a and 30a without using a fixture such as a conventional spring clip. For this reason, it is not necessary to prepare a fixture such as a spring clip separately from the

hinge devices

10 and 10 ′, and the management process for managing the fixture such as a spring clip separately from the

hinge devices

10 and 10 ′ can be reduced. I can do it. Moreover, the insertion hole for letting fixing tools, such as a spring clip, pass to the

holder parts

20 and 30 becomes unnecessary, and the process process which provides an insertion hole in the

holder parts

20 and 30 can be reduced. As a result, it is possible to reduce the cost and work load when manufacturing a toilet using the hinge device 10 or 10 ', or when manufacturing a toilet seat or toilet lid. Further, the second inner diameter portions 20a2 and 30a2 of the mounting holes 20a and 30a only need to have a certain depth or more, and the inner diameter φ2 does not require accuracy and does not require fine finishing.

In addition, according to the hinge lock mechanism according to the present embodiment, when the shaft portion 14 is subjected to a pulling force from the mounting holes 20a and 30a, the convex portion 15a on the outer periphery of the disc hook 15 is formed on the inner periphery of the second inner diameter portions 20a2 and 30a2. Bite. For this reason, the force with which the disk hook 15 opposes the force with which the shaft portion 14 is pulled out increases, and the hinge devices 10 and 10 'do not come out of the mounting holes 20a and 30a firmly. Further, since the outer periphery of the disc hook 15 is inclined toward the shaft portion 14, when the shaft portion 14 is subjected to a pulling force from the mounting holes 20 a, 30 a, the convex portion 15 a on the outer periphery of the disc hook 15 becomes the second inner diameter portion 20 a 2. , 30a2 is bitten sharply by the inner circumference. For this reason, the

hinge devices

10 and 10 ′ cannot be removed from the mounting holes 20 a and 30 a more firmly. If the outer periphery of the disc hook 15 is inclined toward the shaft portion 14, the disc hook 15 smoothly enters the second inner diameter portions 20a2 and 30a2 when the shaft portion 14 is inserted into the mounting holes 20a and 30a. Assembling property of the

devices

10 and 10 ′ into the mounting holes 20a and 30a is improved.

Further, according to the hinge lock mechanism according to the present embodiment, the disc hook 15 is attached to the tip of the shaft portion 14 via the support column 16, so that the disc hook 15 can be easily attached to the tip of the shaft portion 14, The bending allowance of the disc hook 15 can be secured on the shaft portion 14 side of the disc hook 15.

Furthermore, according to the hinge lock mechanism according to the present embodiment, even when the disk hook 15 is hooked on the inner periphery of the second inner diameter portions 20a2 and 30a2 and is fixed to the inner periphery of the second inner diameter portions 20a2 and 30a2. The support column 16 that supports the hook 15 is kept rotatable with respect to the disk hook 15. Therefore, the shaft portion 14 provided with the support column 16 at the tip can rotate independently of the disc hook 15 even when the disc hook 15 is fixed to the inner circumference of the second inner diameter portions 20a2 and 30a2. The hinge devices 10 and 10 'rotate together with the toilet seat and the toilet lid, which are one object that can be opened and closed.

In the hinge device 10 attached between the toilet seat and the toilet body, the shaft portion 14 passes through a mounting hole (not shown) of the toilet lid and is fitted into a first inner diameter portion 20a1 provided in the toilet seat, whereby the shaft portion 14 is fitted. Rotates with the opening and closing of the toilet seat, and the rotary damper portion 12 provides resistance to the closing operation of the toilet seat. In addition, the mounting hole (not shown) formed in the toilet lid through which the shaft portion 14 is passed has a hollow cylindrical shape and does not include a wall portion that fits into the flat portion 14b of the shaft portion 14, The shaft portion 14 is idled and the toilet lid is not affected by the opening / closing operation of the toilet seat.

On the other hand, the hinge device 10 ′ attached between the toilet lid and the toilet bowl object has a shaft portion 14 at a first inner diameter portion of a mounting hole (not shown) formed in the toilet lid with an opening shape similar to the first inner diameter portion 20 a 1. By fitting, the shaft portion 14 rotates as the toilet lid opens and closes, and the rotary damper portion 12 provides resistance to the toilet lid closing operation. The disc hook 15 provided at the tip of the shaft portion 14 is passed through the first inner diameter portion of the mounting hole (not shown) and then the second inner diameter portion 30a2 in the mounting hole 30a of the holder portion 30 provided in the toilet seat. Be hooked on. Since the first inner diameter portion 30a1 in the mounting hole 30a of the holder portion 30 has a hollow cylindrical shape as described above, the shaft portion 14 of the hinge device 10 'does not rotate with the opening and closing of the toilet seat, but rotates freely.

For this reason, the second inner diameter portion 30a2 of the mounting hole 30a is formed in the toilet seat which is an object different from the toilet lid which is one object which the hinge device 10 'supports to be freely opened and closed, and a disk is formed on the second inner diameter portion 30a2. When the hook 15 is fixed, even if the shaft portion 14 rotates together with the toilet lid, the disc hook 15 does not rotate as the shaft portion 14 rotates. Therefore, when the disc hook 15 rotates as the shaft portion 14 rotates, friction is generated between the disc hook 15 and the toilet seat mounting hole 30a to which the disc hook 15 is fixed, and the toilet seat mounting hole 30a is damaged. Absent. Further, even if the toilet seat rotates and the disc hook 15 rotates together with the toilet seat, the shaft portion 14 of the hinge device 10 ′ does not rotate along with the rotation, so the hinge device 10 ′ is influenced by the rotation of the toilet seat. Never happen.

FIG. 6A is a partially cutaway side view of the hinge device 10A to which the hinge lock mechanism according to the first modification of the embodiment is applied. 6 that are the same as or correspond to those in FIG. 5 are assigned the same reference numerals, and descriptions thereof are omitted.

In the hinge device 10A, the support column 16A is formed as an adapter separately from the shaft portion 14. The support column 16A has a short large diameter portion 16A1 on the tip side, a long small diameter portion 16A2 on the base side, and a male screw formed on the outer periphery of the small diameter portion 16A2. A female screw is formed at the tip of the shaft portion 14 on the inner periphery of a screw hole 14c opened in the axial direction of the shaft portion 14. The support column 16A is attached to the tip end of the shaft portion 14 with the male screw of the small diameter portion 16A2 screwed with the female screw of the screw hole 14c. Note that the above-described crimping allowance 16a is formed at the tip of the large-diameter portion 16A1, and the disk hook 15 is attached by crimping similarly to the above-described embodiment.

According to the hinge lock mechanism according to the first modification, the support column 16A formed separately from the shaft portion 14 is screwed onto the tip of the shaft portion 14, and thus the support column 16A is attached to the shaft portion 14. The length of the support column 16A protruding from the tip end of the shaft portion 14 can be adjusted by rotating it relatively. Therefore, the position at which the disk hook 15 is hooked and fixed to the inner circumference of the second inner diameter portions 20a2, 30a2 can be set to a desired position according to the depth of the second inner diameter portions 20a2, 30a2. In addition, according to the actual shape of the second inner diameter portions 20a2 and 30a2 in the toilet seat of the actual machine, the disk hook 15 is fixed to a depth that allows the hooking of the disc hook 15 to the inner circumference of the second inner diameter portions 20a2 and 30a2 to be just right. The position can be set.

FIG. 6B is a partially cutaway side view of the hinge device 10B to which the hinge lock mechanism according to the second modification of the embodiment is applied.

Also in this hinge device 10B, the support column 16B is formed as an adapter separately from the shaft portion 14. The support column 16B has a short small diameter portion 16B2 formed at the end of the long large diameter portion 16B1, and is accommodated in an opening portion 14d opened in the axial direction of the shaft portion 14 at the tip end of the shaft portion 14 so as to be freely inserted and removed. When the hinge device 10B is inserted into the mounting holes 20a and 30a, the support column 16B is biased toward the deep side of the second inner diameter portions 20a2 and 30a2 by the compression coil spring 17 which is an elastic member built in the opening 14d. Is done. One end of the compression coil spring 17 is press-fitted into a boss 14e formed at the bottom of the opening 14d, and the other end is press-fitted into the small-diameter portion 16B2 of the support column 16B, thereby preventing the compression coil spring 17 from coming out of the opening 14d. Note that the above-described crimping allowance 16a is formed at the tip of the large-diameter portion 16B1, and the disk hook 15 is attached by crimping as in the above-described embodiment.

According to the hinge lock mechanism according to the second modification, the shaft portion 14 is inserted into the mounting holes 20a and 30a and the disc hook 15 is inserted into the second inner diameter portions 20a2 and 30a2, and is incorporated in the opening portion 14d. Since the support pillar 16B is urged toward the deep side of the second inner diameter portions 20a2 and 30a2 by the compression coil spring 17, the disk hook 15 is also urged toward the deep side of the second inner diameter portions 20a2 and 30a2. For this reason, the disc hook 15 is always urged to the deep side of the second inner diameter portions 20a2 and 30a2 after the hinge device 10B is assembled into the mounting holes 20a and 30a, so that the disc hook 15 has the second inner diameter portion 20a2. , 30a2 is always pushed in the direction of the deep part so as not to come off, so that the holding stability of the disk hook 15 on the inner circumference of the second inner diameter parts 20a2, 30a2 is improved. Further, when the disk hook 15 at the tip of the shaft portion 14 hits the periphery of the mounting holes 20a and 30a when the hinge device 10B is assembled into the mounting holes 20a and 30a, the disk hook 15 is temporarily retracted. The tip of the shaft portion 14 is guided to be inserted into the mounting holes 20a and 30a, so that the tip of the shaft portion 14 can be easily inserted into the mounting holes 20a and 30a, and the incorporation into the mounting holes 20a and 30a of the hinge device 10B is improved.

In the above-described embodiment and each modification, the case where the disk hook 15 constituting the locking member is formed from a disk-like member having the convex portion 15b formed on the outer periphery shown in FIG. 4 has been described. However, the shape of the locking member is not limited to this. For example, a disc-like member having a plurality of notches 18a on the outer periphery and a hole 18b in the center, such as the disc hook 18 shown in the front and side views of FIGS. The locking member may be configured so as to be inclined toward the shaft portion 14. Further, like a disc hook 19 shown in the front and side views of FIGS. 7 (c) and 7 (d), the outer periphery is a disc-shaped member having a circular shape and a hole 19a formed in the center, and the outer periphery is a shaft portion. You may comprise a latching member so that it may incline in the shape of a mortar to 14 side.

Further, in the above-described embodiment and each modification, the case where the disk hook 15 is attached to the caulking allowance 16a by caulking has been described. However, as shown in FIG. 7 (e), an attachment allowance 16b in which a groove 16c is formed is provided at the tip of the support pillars 16, 16A, 16B, and the holes 15b of the disk hooks 15, 18, 19 are provided in the groove 16c. 18b and 19a may be fitted and the disk hooks 15, 18 and 19 may be attached to the tip of the shaft portion 14. Also in this case, the disk hooks 15, 18, and 19 do not come off from the

support columns

16, 16 </ b> A, and 16 </ b> B in the axial direction of the shaft portion 14 and are rotatable to the

support columns

16, 16 </ b> A, and 16 </ b> B. It is attached to 16A and 16B.

Even with each of these configurations, the same effects as those of the above-described embodiments and modifications can be obtained.

In the above embodiment, the case where the hinge lock mechanism according to the present invention is applied to a hinge device of a Western-style toilet has been described. However, the hinge lock mechanism according to the present invention is not limited to the hinge device of a Western-style toilet, but can be similarly applied to other hinge devices that support opening and closing between objects. The same effect is produced.

DESCRIPTION OF SYMBOLS 10,10 '... Hinge apparatus, 11 ... Attachment / detachment part, 11a ... Attachment / detachment hole, 12 ... Rotary damper part, 13 ... Case, 14 ... Shaft part, 14a ... Guide curved surface part, 14b ... Plane part, 15, 18, 19 ... Disc hook (locking member), 15a ... convex portion, 18a ... notch, 15b, 18b, 19a ... hole, 16, 16A, 16B ... support pillar, 16a ... caulking allowance, 16b ... mounting allowance, 16c ... groove, 16A1, 16B1 ... large diameter part, 16A2, 16B2 ... small diameter part, 17 ... compression coil spring (elastic member), 20, 30 ... holder part, 20a, 30a ... mounting hole, 20a1 ... first inner diameter part, 20a2 ... second Inner diameter part, 20a11 ... arc part, 20a12 ... wall part

Claims

In the hinge lock mechanism that prevents the hinge device that supports the object from being freely opened and closed from coming out of the mounting hole into which the shaft portion is inserted,
A first inner diameter portion having an inner diameter shape that fits into the shaft portion, and a second inner diameter that is smaller than the outer diameter of the shaft portion and that opens to the deepest portion of the first inner diameter portion and to the first inner diameter portion. An inner diameter portion is formed in the mounting hole,
A locking member having an outer diameter equal to or greater than the inner diameter of the second inner diameter portion and having elasticity, and having an outer periphery that is inserted into the second inner diameter portion and is hooked on the inner periphery of the second inner diameter portion. A hinge lock mechanism characterized by comprising a tip.
The locking member is a disk-shaped member having a plurality of protrusions formed on the outer periphery, a disk-shaped member having a plurality of notches formed on the outer periphery, or a disk-shaped member having a circular outer periphery. The hinge lock mechanism according to claim 1, wherein an outer periphery is inclined toward the shaft portion.
A support column having an outer diameter smaller than the inner diameter of the second inner diameter portion and inserted into the second inner diameter portion is formed to protrude from the tip of the shaft portion,
The hinge locking mechanism according to claim 1, wherein the locking member is supported by the support column and attached to a tip end of the shaft portion.
The hinge locking mechanism according to claim 3, wherein the locking member is attached to the support column so as not to come off from the support column in the axial direction of the shaft portion and to be freely rotatable on the support column. .
The support column is formed separately from the shaft portion, and a male screw is formed on the outer periphery, and a female screw formed on the inner periphery of a screw hole opened in the axial direction of the shaft portion at the tip of the shaft portion; The hinge lock mechanism according to claim 3 or 4, wherein the hinge lock mechanism is screwed and attached to a tip of the shaft portion.
The support column is formed separately from the shaft portion, and is housed in an opening opening in the axial direction of the shaft portion at the tip of the shaft portion so as to be freely inserted into and removed from, and is provided by an elastic member built in the opening portion. The hinge locking mechanism according to claim 3 or 4, wherein the hinge locking mechanism is biased toward the deep side of the second inner diameter portion.