WO2018061580A1

WO2018061580A1 - Mounting and demounting device with lock mechanism, and hinge device using same

Info

Publication number: WO2018061580A1
Application number: PCT/JP2017/031004
Authority: WO
Inventors: 渉本田
Original assignee: 株式会社Ｔｏｋ
Priority date: 2016-09-29
Filing date: 2017-08-29
Publication date: 2018-04-05
Also published as: JP6559904B2; JPWO2018061580A1; DE112017004890T5

Abstract

Provided are: a mounting and demounting device capable of easily mounting and demounting one object to and from the other object and capable of positioning said object at a predetermined position; and a hinge device using the mounting and demounting device. This hinge device 1 comprises a mounting and demounting device 2 and a rotary damper 3. The mounting and demounting device 2 comprises a hinge pin 4, an adapter 5, an elastic member 6, and a cover 7. One end of the hinge pin 4 is mounted to the toilet bowl side. The adapter 5 accommodates the elastic member 6, is covered with the cover 7, and is mounted on the toilet seat/toilet cover unit side through the rotary damper 3. Rotating the cover section 7a of the cover 7 about the axis of the adapter 5 engages cam surfaces 7e1, 7f1 with the engagement sections 6a, 6b of the elastic member 6, which are exposed from a lock groove 5c formed in a side end surface of the adapter 5, and lock control sections 7e, 7f press the engagement sections 6a, 6b. The elastic member 6 is wound around and attached to the lock pin section 4b of the hinge pin 4 by the pressing force.

Description

Detachable device having a lock mechanism and hinge device using the same

The present invention relates to an attachment / detachment device for detachably attaching one object to the other object, and a hinge device using the attachment / detachment device.

Conventionally, as this type of attachment / detachment device and a hinge device using the same, there is one for a toilet seat disclosed in Patent Document 1.

The attachment / detachment device disclosed in this document attaches the toilet seat to the toilet of the flush toilet in a detachable manner. The hinge device supports the toilet seat mounted on the toilet bowl of the toilet by an attaching / detaching device so as to be freely opened and closed. This attachment / detachment device includes a fixed adapter that is fixed to a toilet bowl and a hinge rod that is attached to a toilet seat joint that supports the toilet seat. A protrusion is formed at the end portion of the fixed adapter, and an assembly hole is formed in the hinge rod to engage with the protrusion. The toilet seat is detachably fixed to the toilet bowl by engaging the protrusion of the fixed adapter with the assembly hole of the hinge rod.

Also, Patent Document 2 discloses a similar attachment / detachment device and a hinge device using the same. This detachable device is composed of a connecting element fixed to a toilet in which a hinge pin is erected and a casing to which a toilet seat is attached. The toilet seat is detachably fixed to the toilet bowl by inserting a hinge pin into a slot formed in the casing and preventing the casing from being detached from the hinge pin by a lock member.

German Patent Application No. 102005014185 International Publication No. 2013/022409 Pamphlet

However, in the conventional attachment / detachment device disclosed in Patent Document 1, the hinge rod attached to the toilet seat joint rotates around the protrusion of the fixed adapter. Moreover, in the said conventional attachment / detachment apparatus disclosed by patent document 2, the casing attached to a toilet seat will rotate centering on a hinge pin. For this reason, in each of the conventional attachment / detachment devices, the toilet seat and the toilet seat cover are rotated with respect to the toilet bowl, and accordingly, the toilet seat and the toilet seat cover are slanted or rattled to be determined at a predetermined position. I couldn't.

The present invention has been made to solve such problems,
One object is attached to the other object by engaging one object and the other object, and one object is detached from the other object by releasing the engagement between the one and the other object, In an attachment / detachment device for detachably attaching one object to the other object,
A hinge pin with one end attached to the other object side;
An elastic member wound around the other end of the hinge pin;
An elastic member wound on the other end side of the hinge pin and accommodated in the other end side of the hinge pin so as to be freely rotatable; an accommodating portion formed by opening in a direction orthogonal to the axial direction; and an elastic member At least one end portion is exposed from a side end surface on the side of the housing portion and has a lock groove formed on the side end surface that moves the end portion in a direction in which the elastic member is wound around the other end side of the hinge pin; An adapter attached to the side of one object;
Covering part covering the outer periphery of the adapter with the receiving part inserted into the other end of the hinge pin, and covering part of the covering part intersecting with the hinge pin when the covering part is rotated around the axis of the adapter along the outer periphery of the adapter An elastic member that engages with the elongated hole that is formed to be cut off and the end portion that is formed to protrude from the inner surface of the covering portion facing the side end surface and that is exposed from the lock groove when the covering portion rotates. A cover having a projection that is wound around the other end of the hinge pin and locks the rotation of the adapter, the shaft center being provided concentrically with the shaft center of the adapter,
A holding mechanism for holding the protrusion against the elastic force of the elastic member is provided at a winding position where the elastic member is wound around the other end of the hinge pin.

According to this configuration, one end of the hinge pin is attached to the other object side and the adapter is attached to the one object side, and the accommodation portion of the adapter is fitted to the other end side of the hinge pin, and the other end side of the hinge pin is elastic in the accommodation portion. By setting the member in a wound state, one object can be attached to the other object. In this state, the cover formed on the side end surface of the adapter is formed on the side surface of the adapter by rotating the cover portion of the cover about the axis of the adapter along the outer periphery of the adapter. The end of the elastic member exposed from the lock groove is engaged, and the end is pushed in the circumferential direction. The elastic member is wound around the other end of the hinge pin by this pressing force. This state in which the protruding portion exists at the winding position is held against the elastic force of the elastic member by the holding mechanism. When the elastic member is held in a state of being wound around the other end side of the hinge pin, the elastic member accommodated in the accommodation portion of the adapter is entangled with the other end side of the hinge pin, and the rotation of the adapter with respect to the hinge pin is prevented and locked. . For this reason, one object attached to the adapter does not rotate as in the prior art with respect to the other object attached to the hinge pin. As a result, one object can be easily attached to and detached from the other object, and one object can be placed in a predetermined position without the one object becoming slanted or rattling with respect to the other object. It becomes possible to determine.

Further, according to the present invention, the holding mechanism is formed to be recessed in the outer periphery of the adapter on the locus drawn by the engaging portion that the covering portion rotates and the engaging portion is formed by protruding the inner periphery of the covering portion. The first engaged portion is configured to engage the engaging portion and the first engaged portion when the protruding portion exists at the winding position, and hold the protruding portion at the winding position. And

According to this configuration, the cover portion of the cover rotates around the axis of the adapter along the outer periphery of the adapter, and the engagement portion formed on the inner periphery of the cover portion and the first cover formed on the outer periphery of the adapter. By engaging the engaging portion, the protruding portion is held at the winding position. Therefore, the elastic member is held in a state of being wound around the other end side of the hinge pin by the protruding portion, and the rotation lock state of the adapter is maintained.

In the present invention, the holding mechanism includes the second engaged portion formed in the outer periphery of the adapter on the locus drawn by the engaging portion by the rotation of the covering portion, and the elastic member is provided other than the hinge pin. The engaging portion and the second engaged portion are engaged to hold the protruding portion in the relaxed position when the protruding portion exists in the relaxed position where the end portion is not wound.

According to this configuration, the cover portion of the cover rotates around the axis of the adapter along the outer periphery of the adapter, and the engagement portion formed on the inner periphery of the cover portion and the second cover formed on the outer periphery of the adapter. By engaging the engaging portion, the protruding portion is held at the relaxed position. Therefore, the elastic member is held in a state where it is not wound around the other end side of the hinge pin by the protruding portion, and the entanglement of the elastic member with respect to the hinge pin is unwound. For this reason, by moving an adapter to the axial center direction of a hinge pin, the other end side of a hinge pin comes off from the accommodating part of an adapter, and engagement with an adapter and a hinge pin can be released. Further, the covering portion is rotated around the axis of the adapter along the outer periphery of the adapter, and the engaging portion formed on the inner periphery of the covering portion is changed to the first engaged portion and the second portion formed on the outer periphery of the adapter. By moving between the engaged parts, the rotation of the adapter with respect to the hinge pin can be easily set to the locked state and the unlocked state.

In the present invention, the holding mechanism is
A protrusion formed to protrude from the inner surface of the covering portion, which is separated from the inner surface of the covering portion facing the side end surface by a predetermined length in the axial direction,
At the circumferential position where the protrusion is present at the relaxed position where the elastic member is not wound around the other end of the hinge pin, the outer periphery of the adapter extends along a predetermined length in the axial direction from one end surface of the adapter, and then the protrusion is positioned at the winding position. A slide groove that guides the protrusion, formed on the outer periphery of the adapter along the circumferential direction of the adapter, and then along the axial direction until
It is comprised from these.

According to this configuration, the circumferential positions of the projections formed on the inner periphery of the covering portion and the slide grooves formed on the outer periphery of the adapter with a predetermined length in the axial direction are aligned around the axis, and the cover is aligned in the axial direction. By moving along the outer periphery of the adapter, the protrusion moves by a predetermined length along a slide groove formed in a predetermined length in the axial direction, and the attachment of the cover to the adapter is guided. Subsequently, by rotating the cover covering the adapter around the axis along the outer periphery of the adapter, the protrusion moves along the slide groove formed in the circumferential direction. The cover rotates until the protrusion reaches a slide groove formed in the axial direction following the circumferential direction, and the protrusion is guided to the winding position. When the protrusion is positioned at the winding position, the end of the elastic member is pushed by the protrusion and the elastic member is wound around the other end of the hinge pin. In this state, the elastic member accommodated in the accommodating portion is entangled with the other end side of the hinge pin. Subsequently, by moving the cover in the axial direction along the outer periphery of the adapter, the protrusion protrudes along the slide groove formed in the axial direction following the circumferential direction in a state where the protruding portion is located at the winding position. Moves, and the relative position of the cover to the adapter shifts in the axial direction. Due to this deviation, the protrusion stays in the slide groove formed in the axial direction following the circumferential direction, so that the rotation of the cover in the circumferential direction is restricted, and the elastic member is entangled with the other end side of the hinge pin. It is held and the rotation lock state of the adapter is maintained. This locked state cannot be released unless the projection is moved along the slide groove by following the locus of the projection, and cannot be released unless the intended operation is performed on the cover.

Further, according to the present invention, the holding mechanism is inserted through the other end side of the hinge pin at the circumferential position where the protrusion is present at the step formed on the outer periphery of the hinge pin and the loose position where the elastic member is not wound around the other end side of the hinge pin. A first diameter portion of the elongated hole to be rotated, and a second diameter portion of the elongated hole communicating with the first diameter portion engaged with the step when the covering portion is rotated around the axis and the protrusion is positioned at the winding position, , Formed between the first diameter portion and the second diameter portion at intervals shorter than the diameters of the first diameter portion and the second diameter portion, and resists the movement of the hinge pin between the first diameter portion and the second diameter portion. It is characterized by comprising a narrow portion of the elongated hole to be provided.

According to this configuration, the other end side of the hinge pin is inserted into the first diameter portion of the elongated hole, and the covering portion is rotated around the axis against the resistance by the narrow portion, so that the protruding portion is brought into the winding position. When positioned, the second diameter portion of the elongated hole engages with a step formed on the outer periphery of the hinge pin. In this state, the elastic member is wound around the other end side of the hinge pin by the protruding portion, and the elastic member housed in the housing portion is entangled with the other end side of the hinge pin. Further, since the narrow hole that provides resistance to the movement of the hinge pin is formed in the elongated hole between the first diameter portion and the second diameter portion, the elastic member is held in a state of being entangled with the other end side of the hinge pin. Thus, the rotation lock state of the adapter is maintained. In this locked state, the covering portion must be rotated against the resistance caused by the narrow portion, and the engagement between the second diameter portion and the step must be released. , Can not be released.

Further, according to the present invention, in the adapter, a peripheral wall surrounding the periphery of the lock groove is formed so as to protrude from the side end surface, and in the cover, the outer peripheral surface of the peripheral wall slidably contacts the protruding portion of the covering inner surface protruding. A portion is formed.

According to this structure, the outer periphery of the covering inner surface raised portion of the covering portion on which the protruding portion is formed is in sliding contact with the inner periphery of the peripheral wall formed to protrude from the side end surface of the adapter, thereby rotating the covering portion with respect to the adapter. Will be guided. Therefore, the rotation lock operation and the unlock operation of the adapter performed by rotating the covering portion are smoothly performed by guiding the covering inner surface raised portion to the peripheral wall formed on the side end surface of the adapter.

Further, the present invention provides any one of the above attachment / detachment devices provided with a lock mechanism,
A damper case attached to the adapter or molded integrally with the adapter, and a shaft that is housed in the damper case and protrudes from the damper case is connected to one object. The hinge device was configured with a rotary damper that gave resistance to rotation.

According to this configuration, there is provided a hinge device that supports one object to the other object so that the other object can be opened and closed by using an attachment / detachment apparatus that can set one object to be attached / detached to / from the other object at a predetermined position. I can do it.

According to the present invention, one object can be easily attached to and detached from the other object, and the one object is not tilted or rattled with respect to the other object, and the one object is brought into a predetermined position. An attachment / detachment device having a lock mechanism that can be defined, and a hinge device using the same can be provided.

It is a disassembled perspective view of the hinge apparatus by one embodiment of this invention. (A) is the partially broken sectional view of the attachment / detachment device by one Embodiment which fractured | ruptured the adapter and the cover, (b) is the back perspective view of the attachment / detachment device. (A) is the lower perspective view of the adapter which comprises the attachment / detachment apparatus by one Embodiment, (b) is the side view of the attachment / detachment apparatus which fractured | ruptured the rear-end part of the cover and exposed the rear-end part of the adapter It is. (A) is a partially broken perspective view showing the inner bottom surface side of the cover by partially breaking the front part of the cover constituting the detachable device according to the embodiment, and (b) is a rear end portion of the cover and the adapter. It is the perspective view which looked down at the attachment / detachment device of the state which fractured | ruptured from diagonally backward upper direction. It is the perspective view of the state which looked up at the attachment or detachment device by one embodiment in the state where the back end part only of the cover was fractured from the back lower part. It is a lower perspective view of the adapter in which the slide groove | channel by the 1st modification of the holding mechanism which comprises the attachment / detachment apparatus by one Embodiment was formed. (A) is a bottom view of a cover in which an attachment / detachment hole according to a second modification of the holding mechanism constituting the attachment / detachment device according to the embodiment is formed, and (b) is a step according to the second modification of the holding mechanism. It is a perspective view of the formed hinge pin.

Next, a mode for carrying out the present invention will be described in which the attachment / detachment device having the lock mechanism according to the present invention and the hinge device using the same are applied to a Western-style toilet.

FIG. 1 is an exploded perspective view of a hinge device 1 according to an embodiment of the present invention.

The hinge device 1 is composed of a detachable device 2 and a rotary damper 3, and is attached between a toilet seat / toilet lid unit and a toilet bowl as a pair with a hinge device 1 '(not shown) having a similar configuration. The hinge devices 1, 1 ′ support the toilet seat / toilet lid unit that is one object so as to be freely opened and closed with respect to the toilet that is the other object. The rotary damper 3 is configured by accommodating a rotating shaft 3b and a viscous fluid in a damper case 3a, and imparts resistance to the rotation of the rotating shaft 3b by the viscous fluid. In the present embodiment, a rotary damper 3 having a finite angle with a limited rotation angle of the rotary shaft 3b is used. The rotary shaft 3b of the rotary damper 3 constituting one of the pair of hinge devices 1 has a shaft end projecting from the damper case 3a connected to the toilet lid constituting the toilet seat / toilet lid unit, and when the toilet lid is opened and closed Resist the rotation. Further, the rotary shaft 3b of the rotary damper 3 constituting the other hinge device 1 'of the pair is connected at its shaft end protruding from the damper case 3a to the toilet seat constituting the toilet seat / toilet lid unit, and when the toilet seat is opened and closed Resist the rotation of

The attachment / detachment device 2 includes a hinge pin 4, an adapter 5, an elastic member 6 and a cover 7. The lower end of the hinge pin 4 is attached to the toilet bowl. The adapter 5 accommodates the elastic member 6 and is covered with a cover 7, and is attached to the toilet seat / toilet lid unit side via the rotary damper 3. The attachment / detachment device 2 attaches the toilet seat / toilet lid unit to the toilet bowl by engaging between the adapter 5 on the toilet seat / toilet lid unit side and the hinge pin 4 on the toilet bowl side as described later. Further, by releasing the engagement between the adapter 5 and the hinge pin 4 as described later, the toilet seat / toilet lid unit is detached from the toilet. In this way, the detachable device 2 allows the toilet seat / toilet lid unit to be detachably attached to the toilet.

The hinge pin 4 is a shaft-like member in which an outer diameter portion 4a is formed on one end side, and a lock pin portion 4b is formed on the other end side with different diameters. On the toilet side, an outer diameter portion 4a that is one diameter larger than the lock pin portion 4b is fixed. The elastic member 6 is wound around the lock pin portion 4b having a small diameter. The elastic member 6 is composed of a torsion coil spring having an inner diameter that accommodates the outer diameter of the lock pin portion 4b. Both ends of the elastic member 6 are drawn out in parallel to the radial direction perpendicular to the winding center direction to constitute the locking portions 6a and 6b.

2 (a) is a partially cutaway sectional view of the detachable device 2 with the adapter 5 and the cover 7 broken, and FIG. 2 (b) is a rear perspective view of the detachable device 2. FIG. In the figure, the same parts as those in FIG.

The attachment / detachment device 2 is configured such that the other end side of the hinge pin 4 around which the elastic member 6 is wound is accommodated in an adapter 5 and the adapter 5 is covered with a cover 7. The rotary damper 3 is fixed to the adapter 5 by inserting a connecting portion 5 a formed at a front side end portion of the adapter 5 into a rear side end portion of the damper case 3 a. In the present embodiment, the rotary damper 3 is described as being configured such that the damper case 3a is attached to the adapter 5. However, the damper case 3a is formed integrally with the adapter 5. May be. In this case, the rotary damper 3 and the adapter 5 are configured as one component.

3 (a) is a lower perspective view of the adapter 5, and FIG. 3 (b) is a rear end portion of the cover 7 cut along the line IIIb-IIIb (see FIG. 2 (a)) to It is a side view of the exposed attachment / detachment device 2. In the figure, the same parts as those in FIGS. 1 and 2 are denoted by the same reference numerals, and the description thereof is omitted. In addition, in FIG. 3B, illustration of a raised portion 7d of the cover 7 described later is omitted.

The adapter 5 has a cylindrical shape as shown in FIG. 3A, and is opened in a cylindrical shape in a direction orthogonal to the axial direction of the adapter 5 to form a housing portion 5b. The inner diameter of the accommodating portion 5 b is set to a diameter for accommodating the outer diameter portion 4 a of the hinge pin 4. The accommodating portion 5 b accommodates the elastic member 6 wound around the lock pin portion 4 b on the other end side of the hinge pin 4, is supported by the outer diameter portion 4 a of the hinge pin 4, and is rotatable to the other end side of the hinge pin 4. Fit into.

A lock groove 5c is formed on the rear side end surface of the adapter 5 opposite to the connection portion 5a. The lock groove 5c includes a slit groove 5c1 that exposes the engaging portions 6a and 6b at both ends of the elastic member 6 from the side end surfaces of the housing portion 5b, and a pair of guide grooves that guide the movement of the engaging portions 6a and 6b. 5c2. The slit groove 5c1 is formed to open in a rectangular parallelepiped shape so as to communicate with the accommodating portion 5b and to be a passage for the engaging portions 6a and 6b when the elastic member 6 is accommodated in the accommodating portion 5b. Yes. Further, the guide groove 5c2 is opposite to each other in the direction perpendicular to the direction in which the slit groove 5c1 is formed so that the locking portions 6a and 6b are moved in the direction in which the elastic member 6 is wound around the lock pin portion 4b of the hinge pin 4. An opening is formed in the direction. The guide grooves 5c2 are formed at intervals separated from each other in the height dimension of the elastic member 6 in the formation direction of the slit grooves 5c1. An annular peripheral wall 5d protrudes from the side end face of the adapter 5 surrounding the lock groove 5c.

4 (a) is a partially broken perspective view showing the inner bottom surface side of the cover 7 by partially breaking the front portion of the cover 7, and FIG. 4 (b) shows the rear end portions of the cover 7 and the adapter 5 at IVb. FIG. 5 is a perspective view of the attachment / detachment device 2 in a state broken along the line IVb (see FIG. 2 (a)) as viewed from obliquely upward and rearward. FIG. It is a perspective view of the state looked up from. 4 and 5, the same parts as those in FIGS. 1 to 3 are denoted by the same reference numerals, and the description thereof is omitted.

The cover 7 has a covering portion 7 a that covers the outer periphery of the outer diameter portion of the adapter 5 in which the accommodating portion 5 b is fitted on the other end side of the hinge pin 4. The axis of the cover 7 is provided concentrically with the axis of the adapter 5. The covering portion 7 a has a hollow cylindrical shape having a bottom, and the covering portion of the covering portion 7 a intersects with the hinge pin 4 when the covering portion 7 a is rotated around the axis of the adapter 5 along the outer periphery of the adapter 5. Is cut out, and a long hole is formed as an attaching / detaching hole 7b. The attachment / detachment hole 7b serves to penetrate the hinge pin 4 when the other end side of the hinge pin 4 is fitted into the accommodating portion 5b of the adapter 5. At the same time, as will be described later, the attachment / detachment hole 7b serves to rotate the covering portion 7a without being obstructed by the hinge pin 4 when the hinge pin 4 and the adapter 5 are engaged with each other using the elastic member 6. As shown in FIGS. 1 and 2, a groove for rotating the covering portion 7a is formed as an operation portion 7c at the outer peripheral rear end of the covering portion 7a. Adjustment tools such as a screwdriver are inserted into the groove of the operation portion 7c.

As shown in FIGS. 2 (a) and 4 (a), a protruding portion 7d that protrudes in a cylindrical shape is formed on the inner surface of the inner periphery of the covering portion 7a that faces the rear end surface of the adapter 5. . The covering portion 7a is rotated about the axis of the adapter 5 by being guided by the peripheral wall 5d when the protruding portion 7d is fitted to the peripheral wall 5d and the outer periphery of the protruding portion 7d is in sliding contact with the inner periphery of the peripheral wall 5d. . In addition, a pair of protruding portions protruding in a fan shape are formed as lock control portions 7e and 7f on the protruding end surface of the raised portion 7d facing the rear side end surface of the adapter 5.

The lock control parts 7e and 7f are guided by the peripheral wall 5d and rotated counterclockwise when viewed from the back of the cover 7, so that the side surfaces of the lock control parts 7e and 7f become cam surfaces 7e1 and 7f1. Engage with the locking portions 6a and 6b exposed from 5c, and push the locking portions 6a and 6b counterclockwise. Due to the pushing force of the lock control portions 7e and 7f, the elastic member 6 reduces its winding diameter, winds around the lock pin portion 4b on the other end side of the hinge pin 4, and locks rotation about the hinge pin 4 of the adapter 5 To do. On the other hand, as shown in FIG. 4B, the lock control portions 7e and 7f are guided by the peripheral wall 5d and rotated in the clockwise direction when viewed from the rear of the cover 7. , 7f1 move away from the locking portions 6a, 6b to loosen the force pushing the locking portions 6a, 6b counterclockwise. When the force of pushing the locking portions 6a and 6b of the lock control portions 7e and 7f is loosened and the elastic member 6 expands the winding diameter by the elastic force, the elastic member 6 is unwound from the lock pin portion 4b, and the adapter 5 The rotation lock state is released.

The lock positions of the lock control portions 7e and 7f around which the elastic member 6 is wound around the other end of the hinge pin 4 are held against the elastic force that increases the diameter of the elastic member 6 by the holding mechanism. Is done. In the present embodiment, the holding mechanism includes an engaging portion 7g (see FIG. 4A) formed to protrude from the inner periphery of the covering portion 7a, and the covering portion 7a rotates to draw the engaging portion 7g. It is comprised from the 1st to-be-engaged part 5e (refer FIG. 5) hollowed in the outer periphery of the adapter 5 on a locus | trajectory. In this holding mechanism, when the lock control portions 7e and 7f are present at the winding position, the engaging portion 7g and the first engaged portion 5e are engaged to bring the lock control portions 7e and 7f to the winding position. Hold.

In the present embodiment, the holding mechanism includes the second engaged portion 5f formed to be recessed in the outer periphery of the adapter 5 on the locus drawn by the engaging portion 7g by the rotation of the covering portion 7a, and the elastic member 6 is provided. When the lock control portions 7e and 7f are present in the relaxed position where they are not wound around the other end of the hinge pin 4, the engaging portion 7g and the second engaged portion 5f are engaged as shown in FIG. The lock control units 7e and 7f are held in the relaxed position. As shown in FIG. 3 (a), the outer periphery of the adapter 5 between the first engaged portion 5e and the second engaged portion 5f is the first engaged portion 5e and the second engaged portion 5f. The groove is cut shallower than the depth of the recess, and a guide groove 5g followed by the engaging portion 7g is formed.

The hinge device 1 connected to the toilet lid and the hinge device 1 ′ connected to the toilet seat are such that the shaft end of the rotary shaft 3b of the rotary damper 3 faces the outside of the opposite toilet seat / toilet lid unit.・ Installed side by side between the toilet lid unit and toilet. For this reason, the hinge device 1 and the hinge device 1 ′ are different in the shape of the attachment / detachment hole 7 b formed in the cover 7 and the winding direction of the wire constituting the elastic member 6. The shape of the attachment / detachment hole 7b formed in the cover 7 is different between the left and right hinge devices 1 and 1 ′ at the winding position of the covering portion 7a around which the elastic member 6 is wound around the hinge pin 4 and the opening of the attachment / detachment hole 7b. This is to prevent the opening of the attachment / detachment hole 7b from being visible to the user of the toilet, so that the toilet is not exposed to the front of the toilet. For this reason, in the hinge device 1, when the covering portion 7a is rotated counterclockwise, the elastic member 6 is wound around the hinge pin 4 and the opening of the attachment / detachment hole 7b faces the rear of the toilet. Further, in the hinge device 1 ′, when the covering portion 7 a is rotated in the clockwise direction, the elastic member 6 is wound around the hinge pin 4 and the opening of the attachment / detachment hole 7 b faces the rear of the toilet bowl. For this purpose, the winding direction of the wire of the elastic member 6 needs to be different between the hinge device 1 and the hinge device 1 '. Further, in the hinge device 1 ′, the guide groove 5c2 constituting the lock groove 5c is formed in the direction opposite to the direction shown in FIG. 3B with respect to the slit groove 5c1, and the locking portions 6a, Guide 6b in the opposite direction. For this reason, if the upper and lower guide grooves 5c2 are not formed in different directions in the vertical direction as shown in FIG. 3B with respect to the slit groove 5c1, but are formed in the same direction in both directions in the vertical direction, the hinge device 1 And the hinge device 1 ′ can use the same adapter 5 to share components.

When assembling the attachment / detachment device 2, first, the elastic member 6 is incorporated in the accommodating portion 5b of the adapter 5 by aligning the protruding direction of the locking portions 6a, 6b with the opening direction of the slit groove 5c1. Next, the cover 7 is put on the adapter 5 in a state where the elastic member 6 is incorporated in the housing portion 5b. At this time, the accommodating portion 5 b of the adapter 5 is exposed in the attachment / detachment hole 7 b of the cover 7. Next, the accommodating part 5b exposed from the attaching / detaching hole 7b is fitted into the other end side of the hinge pin 4, and the outer diameter part of the lock pin part 4b is inserted into the inner diameter part of the elastic member 6, whereby the attaching / detaching device 2 is assembled. . The attachment / detachment device 2 is coupled to a toilet seat / toilet lid unit via a rotary damper 3 connected to an adapter 5 to constitute a hinge device 1, 1 ′.

According to the attachment / detachment device 2 according to this embodiment, one end of the hinge pin 4 is attached to the toilet bowl, the adapter 5 is attached to the toilet seat / toilet lid unit, and the housing portion 5b of the adapter 5 is attached to the hinge pin 4 as described above. The toilet seat / toilet lid unit can be attached to the toilet bowl by being fitted to the other end side and the elastic member 6 being wound around the other end side of the hinge pin 4 in the accommodating portion 5b. In this state, the lock control units 7e and 7f are operated by operating the operation unit 7c to rotate the cover 7a of the cover 7 counterclockwise around the axis of the adapter 5 along the outer periphery of the adapter 5. The cam surfaces 7e1 and 7f1 engage with the engaging portions 6a and 6b of the elastic member 6 exposed from the lock groove 5c formed on the side end surface of the adapter 5 to push the engaging portions 6a and 6b. The elastic member 6 is wound around the other end of the hinge pin 4 by this pressing force.

This state in which the lock control units 7e and 7f are present at the winding position is held against the elastic force of the elastic member 6 by the holding mechanism. In this embodiment, the covering portion 7a of the cover 7 rotates around the axis of the adapter 5 along the outer periphery of the adapter 5, and the engaging portion 7g formed on the inner periphery of the covering portion 7a guides to the guide groove 5g. The first engaged portion 5e formed on the outer periphery of the adapter 5 and the engaging portion 7g and the first engaged portion 5e are engaged, so that the lock control portions 7e and 7f are in the winding position. Retained.

When the elastic member 6 is held in a state of being wound around the other end side of the hinge pin 4, the elastic member 6 accommodated in the accommodating portion 5 a of the adapter 5 is entangled with the lock pin portion 4 b on the other end side of the hinge pin 4. Is prevented from rotating with respect to the hinge pin 4 and is locked. For this reason, the toilet seat / toilet lid unit to which the adapter 5 is attached does not rotate as in the prior art with respect to the toilet bowl to which the hinge pin 4 is attached. As a result, the toilet seat and toilet lid unit can be easily attached to and removed from the toilet, and the toilet seat and toilet lid unit does not become slanted or rattled with respect to the toilet as in the past. It is possible to set the lid unit at a predetermined position.

Further, according to the detachable device 2 according to the present embodiment, by operating the operation portion 7c, the covering portion 7a of the cover 7 is rotated around the axis of the adapter 5 in the clockwise direction along the outer periphery of the adapter 5, The engaging portion 7g formed on the inner periphery of the portion 7a is guided by the guide groove 5g to reach the second engaged portion 5f formed on the outer periphery of the adapter 5, and the engaging portion 7g and the second engaged portion By engaging with 5f, the lock control units 7e and 7f are held in the relaxed position. Therefore, the elastic member 6 is held in a state where it is not wound around the other end of the hinge pin 4 by the lock control portions 7e and 7f, and the entanglement of the elastic member 6 with respect to the hinge pin 4 is released. For this reason, by lifting the toilet seat / toilet lid unit from the toilet and moving the adapter 5 in the axial direction of the hinge pin 4, the other end side of the hinge pin 4 is removed from the accommodating portion 5 b of the adapter 5. The engagement can be released.

Further, by operating the operating portion 7 c, the covering portion 7 a is rotated around the axis of the adapter 5 along the outer periphery of the adapter 5, and the engaging portion 7 g formed on the inner periphery of the covering portion 7 a By rotating between the first engaged portion 5e and the second engaged portion 5f formed on the outer periphery, the rotation of the adapter 5 relative to the hinge pin 4 can be easily set to the locked state and the unlocked state. I can do it.

Moreover, in this embodiment, rotation with respect to the adapter 5 of the coating | coated part 7a is because the outer periphery of the protruding part 7d of the cover 7 is slidably contacted with the inner periphery of the surrounding wall 5d formed in the side end surface of the adapter 5, Guided. Accordingly, the rotation lock operation and the unlock operation of the adapter 5 performed by rotating the covering portion 7a, that is, the cover 7, are smoothly performed with the raised portion 7d guided to the peripheral wall 5d.

Further, the hinge device 1 of the present embodiment includes the above-described attachment / detachment device 2 provided with a lock mechanism, and a rotary damper 3 that provides resistance to rotation of the toilet seat / toilet lid unit. According to this configuration, a hinge device 1 is provided that supports the toilet seat / toilet lid unit so that it can be freely opened and closed using the attaching / detaching device 2 that can set the toilet seat / toilet lid unit to be attached to and detached from the toilet bowl at a predetermined position. I can do it.

The holding mechanism includes a projection 7g shown in FIG. 4A that protrudes from the inner periphery of the covering portion 7a, and a slide groove 5h shown in FIG. 6 that is formed on the outer periphery of the adapter 5 that guides the projection 7g. You may make it comprise from these. In FIG. 6, the same parts as those in FIG. As shown in FIG. 4A, the protrusion 7g is formed at a predetermined length away from the inner surface of the covering portion 7a facing the rear end surface of the adapter 5 in the axial direction. The slide groove 5h is formed so that the outer periphery of the adapter 5 extends axially from one end face of the adapter 5 at a circumferential position where the lock control portions 7e and 7f are present in a relaxed position where the elastic member 6 is not wound around the other end of the hinge pin 4. A first groove portion 5h1 along a predetermined length, a second groove portion 5h2 along the circumferential direction of the adapter 5 until the lock control portions 7e and 7f are located at the winding position following the first groove portion 5h1, and the second groove portion 5h2. And the third groove portion 5h3 formed on the outer periphery of the adapter 5 along the axial direction.

According to this configuration, the peripheral position of the projection 7g formed on the inner periphery of the covering portion 7a and the first groove portion 5h1 formed in the axial direction on the outer periphery of the adapter 5 are aligned with each other, and the cover 7 is By moving the adapter 5 along the outer periphery of the adapter 5 in the axial direction so as to cover the adapter 5, the projection 7 g moves along the first groove 5 h 1 by a predetermined length, and the attachment of the cover 7 to the adapter 5 is guided. Subsequently, by rotating the cover 7 covering the adapter 5 around the axis along the outer periphery of the adapter 5, the protrusion 7g moves along the second groove portion 5h2 formed in the circumferential direction. The cover 7 rotates until the projection 7g reaches the third groove 5h3 formed in the axial direction following the circumferential direction, and the lock control portions 7e and 7f are guided to the winding position. When the lock control portions 7e and 7f are positioned at the winding position, the locking portions 6a and 6b of the elastic member 6 are pushed by the cam surfaces 7e1 and 7f1 of the lock control portions 7e and 7f, and the elastic member 6 locks the hinge pin 4 It winds around the pin part 4b. In this state, the elastic member 6 accommodated in the accommodating portion 5 b is entangled with the lock pin portion 4 b of the hinge pin 4. Subsequently, the cover 7 is moved in the axial direction along the outer periphery of the adapter 5 in the direction to be pulled out from the adapter 5, so that the lock control units 7 e and 7 f are positioned in the winding position, and the shaft continues in the circumferential direction. The protrusion 7g moves along the third groove portion 5h3 formed in the center direction, and the relative position of the cover 7 to the adapter 5 is shifted in the axial direction. The protrusion 7g stays in the third groove portion 5h3 due to this displacement, so that the rotation of the cover 7 in the circumferential direction is restricted, and the elastic member 6 is held in a state of being entangled with the lock pin portion 4b of the hinge pin 4. The rotation lock state of 5 is maintained. This locked state cannot be released unless the projection 7g is moved along the slide groove 5h by following the locus of the projection 7g, and cannot be released unless the intended operation is performed on the cover 7.

Further, the holding mechanism includes a step 4c formed on the outer periphery of the hinge pin 4 shown in FIG. 7B, and an attaching / detaching hole 7h shown in FIG. 7A formed on the bottom of the cover 7 in place of the attaching / detaching hole 7b. You may make it comprise. The attachment / detachment hole 7h includes a first diameter portion 7h1 having a diameter through which the outer diameter portion 4a is inserted, a second diameter portion 7h2 having a diameter fitted to a formation portion of the step 4c of the hinge pin 4, and a first diameter portion 7h1 and The narrow diameter portions 7h3 are formed at intervals shorter than the diameters of the second diameter portions 7h2. The first diameter portion 7h1 allows the other end side of the hinge pin 4 to be inserted at a circumferential position of the cover 7 where the lock control portions 7e and 7f are present in a relaxed position where the elastic member 6 is not wound around the other end side of the hinge pin 4. The second diameter portion 7h2 is formed to communicate with the first diameter portion 7h1, and engages with the step 4c when the cover portion 7a is rotated around the axis and the lock control portions 7e and 7f are positioned at the winding position. To do. The narrow portion 7h3 provides resistance to the movement of the hinge pin 4 between the first diameter portion 7h1 and the second diameter portion 7h2.

According to this configuration, the other end side of the hinge pin 4 is inserted into the first diameter portion 7h1, and the covering portion 7a is rotated around the axis center against the resistance by the narrow portion 7h3, so that the lock control portion 7e, When 7f is positioned at the winding position, the second diameter portion 7h2 engages with a step 4c formed on the outer periphery of the hinge pin 4. In this state, the elastic member 6 is wound around the lock pin portion 4b of the hinge pin 4 by the lock control portions 7e and 7f, and the elastic member 6 accommodated in the accommodation portion 5b is attached to the lock pin portion 4b of the hinge pin 4. Tangle. Further, since the attaching / detaching hole 7h between the first diameter portion 7h1 and the second diameter portion 7h2 is formed with a narrow portion 7h3 that gives resistance to the movement of the hinge pin 4, the elastic member 6 is a lock pin portion of the hinge pin 4. The state in which the adapter 5 is entangled is held, and the rotation lock state of the adapter 5 is maintained. In this locked state, the covering portion 7a must be rotated against the resistance of the narrow portion 7h3 to disengage the second diameter portion 7h2 from the step 4c. If it is not done, it cannot be canceled.

In the above holding mechanism, the second diameter portion 7h2 is formed on one side of the first diameter portion 7h1 via the narrow portion 7h3. However, the narrow portion 7h3 is symmetrically provided on the opposite side of the first diameter portion 7h1. The second diameter portion 7h2 may be formed through the gap. In this case, the covering portion 7a is rotated to the opposite side around the axis, and the elastic member 6 having a different winding direction is formed on the lock pin portion 4b by the second diameter portion 7h2 and the narrow portion 7h3 formed on the opposite side. It can be wound and the wound state can be maintained. For this reason, according to this configuration, the hinge device 1 and the hinge device 1 ′ can share components by using the same cover 7.

Further, in the above-described embodiment and each modified example, the locking portions 6a and 6b provided at both ends of the elastic member 6 are exposed on the rear side end surface of the adapter 5, and both locking is performed by the pair of lock control portions 7e and 7f. The case where the elastic member 6 is wound around the lock pin portion 4b by applying a force to the portions 6a and 6b has been described. However, only one end portion of the elastic member 6 is exposed to the rear side end face of the adapter 5, and a force is applied to the one end portion by one lock control portion, so that the elastic member 6 is wound around the lock pin portion 4b. May be. Even in this configuration, the same effects as those of the above-described embodiment can be obtained.

In the above embodiment, the case where the attachment / detachment device according to the present invention and the hinge device using the same are applied to a Western-style toilet has been described. However, the attachment / detachment device and the hinge device using the same according to the present invention are not limited to a Western-style toilet, and have a structure in which one object is detachably attached to the other object and one object is opened / closed with respect to the other object. The present invention can be similarly applied to the other devices, and the same effects can be obtained.

DESCRIPTION OF SYMBOLS 1 ... Hinge device, 2 ... Detachable device, 3 ... Rotary damper, 3a ... Damper case, 3b ... Rotating shaft, 4 ... Hinge pin, 4a ... Outer diameter part, 4b ... Lock pin part, 4c ... Level difference, 5 ... Adapter, 5a ... Connection part, 5b ... Housing part, 5c ... Lock groove, 5c1 ... Slit groove, 5c2 ... Guide groove, 5d ... Surround wall, 5e ... First engaged part, 5f ... Second engaged part, 5g ... Guide groove 5h ... slide groove, 5h1 ... first groove portion, 5h2 ... second groove portion, 5h3 ... third groove portion, 6 ... elastic member, 6a, 6b ... locking portion, 7 ... cover, 7a ... covering portion, 7b, 7h ... Attaching / detaching hole, 7c ... operation part, 7d ... raised part, 7e, 7f ... lock control part (projection part), 7e1, 7f1 ... cam surface, 7g ... engagement part (protrusion), 7h1 ... first diameter part, 7h2 ... 2nd diameter part, 7h3 ... narrow part

Claims

One object is attached to the other object by engaging one object and the other object, and one object is detached from the other object by releasing the engagement between the one and the other object, In an attachment / detachment device for detachably attaching one object to the other object,
A hinge pin with one end attached to the other object side;
An elastic member wound around the other end of the hinge pin;
An accommodating part formed to open in a direction perpendicular to the axial direction, which accommodates the elastic member wound around the other end of the hinge pin and is rotatably fitted to the other end of the hinge pin; and At least one end portion of the elastic member is exposed from a side end surface on the side of the accommodating portion, and formed on the side end surface that moves the end portion in a direction in which the elastic member is wound around the other end side of the hinge pin. An adapter attached to the side of one object having a locking groove formed;
A covering portion that covers the outer periphery of the adapter with the accommodating portion fitted on the other end side of the hinge pin, and intersects with the hinge pin when the covering portion is rotated around the axis of the adapter along the outer periphery of the adapter An elongated hole formed by cutting out the covering portion of the covering portion, and a protrusion formed on the covering inner surface of the covering portion facing the side end surface. The covering portion rotates and is exposed from the lock groove. A cover having a protrusion that engages with the end and winds the elastic member around the other end of the hinge pin and locks the rotation of the adapter, the axis being provided concentrically with the axis of the adapter; ,
A detaching mechanism with a lock mechanism, comprising: a holding mechanism that holds the protrusion against the elastic force of the elastic member at a winding position where the elastic member is wound around the other end of the hinge pin. apparatus.
The holding mechanism includes an engaging portion that protrudes from an inner periphery of the covering portion, and a concave portion that is formed on the outer periphery of the adapter on a locus drawn by the engaging portion as the covering portion rotates. 1 engaging portion, and when the protruding portion exists at the winding position, the engaging portion and the first engaged portion engage to bring the protruding portion into the winding position. The attachment / detachment apparatus having the lock mechanism according to claim 1, wherein the attachment / detachment apparatus is held.
The holding mechanism includes a second engaged portion that is formed to be recessed in an outer periphery of the adapter on a locus drawn by the engaging portion as the covering portion rotates, and the elastic member is connected to the other end of the hinge pin. The engaging portion and the second engaged portion are engaged with each other when the projecting portion is present at a relaxed position where the projecting portion is not wound to the side, and the projecting portion is held at the relaxed position. An attachment / detachment device comprising the lock mechanism according to Item 2.
The holding mechanism is
A protrusion formed to protrude from the inner surface of the covering portion facing the side end surface to the inner periphery of the covering portion that is separated by a predetermined length in the axial direction from the inner surface of the covering portion;
The outer periphery of the adapter extends along a predetermined length in the axial direction from one end surface of the adapter at a circumferential position where the protrusion is present in a relaxed position where the elastic member is not wound around the other end of the hinge pin, and then the protrusion. A slide groove that guides the protrusion, which is formed on the outer periphery of the adapter along the circumferential direction of the adapter until it is located at the winding position, and then along the axial direction.
The attachment / detachment apparatus provided with the lock mechanism according to claim 1.
The holding mechanism is inserted through the other end of the hinge pin at a step formed on the outer periphery of the hinge pin and a circumferential position where the protruding portion is present in a relaxed position where the elastic member is not wound around the other end of the hinge pin. The first diameter portion of the elongated hole to be rotated, and the length communicating with the first diameter portion engaged with the step when the projection is positioned at the winding position by rotating the covering portion around an axis. A second diameter portion of the hole, and the first diameter portion and the second diameter portion are formed at intervals shorter than the diameters of the first diameter portion and the second diameter portion, and the first diameter portion and 2. The attachment / detachment apparatus having a lock mechanism according to claim 1, comprising: a narrow portion of the elongated hole that provides resistance to movement of the hinge pin between the second diameter portions.
The adapter is formed so that a peripheral wall surrounding the periphery of the lock groove protrudes from the side end surface,
The said cover is formed with the said protrusion part in the coating | cover inner surface protruding part of the said coating | coated part which an outer periphery slides in contact with the inner periphery of the said surrounding wall, The any one of Claims 1-5. An attachment / detachment device comprising the lock mechanism described in 1.
An attachment / detachment device provided with the lock mechanism according to any one of claims 1 to 6,
A damper case attached to the adapter or molded integrally with the adapter, and a rotary shaft that is accommodated in the damper case and protrudes from the damper case and connected to one object; A hinge device comprising: a rotary damper that provides resistance to rotation of one object.