EP3228232B1

EP3228232B1 - Coupling and release device and hinge device employing same

Info

Publication number: EP3228232B1
Application number: EP15866119.9A
Authority: EP
Inventors: Nobutaka Yajima
Original assignee: TOK Bearing Co Ltd
Current assignee: TOK Bearing Co Ltd
Priority date: 2014-12-01
Filing date: 2015-11-16
Publication date: 2020-08-05
Anticipated expiration: 2035-11-16
Also published as: JP6351754B2; JPWO2016088545A1; EP3228232A4; EP3228232A1; ES2811456T3; WO2016088545A1

Description

Technical Field

The present invention relates to a mounting and dismounting device and a hinge device using the mounting and dismounting device and is suitable in a case of simplifying mounting and dismounting work by a user.

Background Art

In hinge devices pivotally supporting a lid on an equipment main body, there is a hinge device which allows the lid to be mounted on and dismounted from the main body. EP 2 324 745 A2 discloses a mounting and dismounting mechanism which allows a toilet seat and a toilet lid to be mounted and dismounted with respect to a toilet bowl. The mounting and dismounting mechanism is composed of a fixing part to be mounted on the toilet bowl, and a mounting and dismounting part which is provided in a hinge device which is mounted on the toilet seat and the toilet lid. In the fixing part, a pin having a groove formed along a circumferential direction thereof is provided. On the other hand, the mounting and dismounting part has a case, a shaft disposed in the case and slidable with respect to the case, a spring for biasing the shaft in a predetermined direction, and a button for pushing the shaft against the biasing force of the spring. An insertion hole into which the pin is inserted is formed in the case.
When mounting the toilet seat and the toilet lid on the toilet bowl, the pin of the fixing part is inserted into the insertion hole of the case. At this time, due to a pushing-in force of the pin, the shaft slides against the biasing force of the spring. Then, if the pin and the shaft reach a predetermined positional relationship, the shaft is pushed back in the original direction by the biasing force of the spring and a portion of the shaft enters the groove formed in the pin. In this way, the pin inserted into the insertion hole is locked, and the fixing part and the mounting and dismounting part are locked to each other.
On the other hand, when separating the fixing part and the mounting and dismounting part from each other in order to remove the toilet seat and the toilet lid from the toilet bowl, the button is pushed against the biasing force of the spring. Then, a part of the shaft inserted into the groove of the pin comes off from the groove. Therefore, the locked state of the pin is released and the pin can be extracted from the insertion hole. In this way, the mounting and dismounting part can be removed from the fixing part.
US 2013/0198942 A1 discloses a mounting apparatus for coupling a toilet seat to a toilet according the the preamble of claim 1, includes a bolt including a proximal end defining a contact portion and a threaded distal end, and a hinge including a first portion including a mechanism to rotatably couple the first portion to the toilet seat and a second portion including a resilient member including a C-shaped engagement configured to be received by contact portion of the bolt via a snap fit in response to the application of a horizontal force to the hinge. US 6 381 762 B1 describes a quick release hinge assembly for a toilet seat including a pair of fasteners each having a flange for engaging a toilet bowl when attached thereto and a head spaced above the flange, an anchor plate having a pair of slots formed on the bottom side thereof which cooperate with the heads of the fasteners to secure the anchor plate to a toilet bowl, the anchor plate further including a resiliently biased latch formed in the top surface thereof which locks and unlocks the anchor plate from one of the fastener heads to permit the anchor plate to slide off of the fasteners and a pair of spaced hinge mounting supports extending from the anchor plate to which a toilet seat and lid can be pivotally coupled.

Summary of Invention

Technical Problem

However, in a case of removing the toilet seat and the toilet lid from the toilet bowl, a user removes the shaft inserted into the groove formed in the pin, while pushing the button against the biasing force of the spring. That is, both the work of pressing the button and the work of extracting the pin from the insertion hole are forced to be performed, and therefore, the mounting and dismounting device of the related art is considered to have a configuration in which it cannot be said that the mounting and dismounting work by a user is simple.
Therefore, the present invention has an object to provide a mounting and dismounting device capable of simplifying mounting and dismounting work by a user, and a hinge device using the mounting and dismounting device. Solution to Problem
In order to solve the above problem, a mounting and dismounting device according to claim 1 is provided with a pin case for mounting and dismounting a pin having a rod portion and a head portion protruding from a tip of the rod portion further toward the outside than an outer peripheral surface of the rod portion. The pin case has an insertion section having an insertion hole into which the pin is inserted, a passage section having a head passage space which communicates with the insertion hole and allows the head portion of the pin inserted into the insertion hole to move in a direction orthogonal to a longitudinal direction of the insertion hole, and a holding section having a rod disposition space which communicates with the insertion hole and the head passage space and in which the rod portion is to be disposed, the holding section holding the rod portion in the rod disposition space by opening and closing an opening and closing port between the rod disposition space and the insertion hole. In a case where the rod portion is held in the rod disposition space, an end portion on the head passage space side of the holding section fastens the head portion such that the pin does not come out from the pin case.

Advantageous Effects of Invention

In a case of mounting such a mounting and dismounting device on the pin, the mounting and dismounting device is lowered from the head portion side of the pin to the rod portion side, and the pin is inserted into the insertion hole of the insertion section. Thereafter, the mounting and dismounting device is slid in the direction orthogonal to a direction in which the pin is inserted into the insertion hole. In this way, the head portion of the pin is moved to the holding section side along the head passage space of the passage section, and the rod portion of the pin is moved to the rod disposition space side of the holding section.
Then, if the rod portion reaches the opening and closing port between the rod disposition space and the insertion hole, the opening and closing port is pushed by the rod portion, thereby being opened and closed, and the rod portion is held in the rod disposition space. At this time, the head portion is fastened by the end portion on the head passage space side of the holding section such that the pin does not come out from the pin case.
On the other hand, in a case of removing the mounting and dismounting device from the pin, the mounting and dismounting device is slid in a direction in which the pin position moves from the holding section side to the insertion hole side. In this way, the opening and closing port is pushed from the rod portion disposed in the rod disposition space toward the insertion hole side, thereby being opened and closed, whereby the rod portion is released to the insertion hole side and the head portion is moved to the insertion section side along the head passage space of the passage section. Thereafter, the mounting and dismounting device is lifted from the rod portion side of the pin to the head portion side, and thus the pin is pulled out from the insertion hole of the insertion section.
In this manner, in the mounting and dismounting device, it is possible to mount and dismount the pin only by moving the mounting and dismounting device with respect to the pin in the insertion direction of the pin into the insertion hole and the direction orthogonal to the insertion direction.

Brief Description of Drawings

Fig. 1 is a diagram showing a toilet seat and a toilet lid using a mounting and dismounting device according to an embodiment of the present invention.
Fig. 2 is a sectional view of a rotary damper of Fig. 1.
Fig. 3 is an external view of a pin of Fig. 1.
Fig. 4 is an external view of the mounting and dismounting device of Fig. 1.
Fig. 5 is a diagram when an X-X cross-section of a pin case in Fig. 4 is viewed frontally in the direction of an arrow.
Fig. 6 is a diagram showing a state of the pin case in which a portion in the direction of an arrow is cut out with a Y-Y plane in Fig. 4 as a cutting plane.
Fig. 7 is a diagram showing a state where the pin is mounted on the mounting and dismounting device from the same perspective as Fig. 6.

Description of Embodiments

Hereinafter, preferred embodiments of a mounting and dismounting device according to the present invention and a hinge device using the mounting and dismounting device will be described in detail with reference to the drawings.
Fig. 1 is a diagram showing a toilet seat and a toilet lid using a mounting and dismounting device according to an embodiment of the present invention. As shown in Fig. 1, a toilet seat 1 and a toilet lid 2 have hinge devices 4a and 4b. The hinge device 4a is provided with a rotary damper 5a, and a mounting and dismounting device 6 in which the rotary damper 5a is mounted. On the other hand, the hinge device 4b is provided with a rotary damper 5b, and a mounting and dismounting device 6 in which the rotary damper 5b is mounted.
The rotary damper 5a and the rotary damper 5b are provided with torque generating parts 61 having the same configuration with respect to one another. However, a rotary shaft 62a of the rotary damper 5a and a rotary shaft 62b of the rotary damper 5b are fixed to different sites. That is, the rotary shaft 62a of the rotary damper 5a is fixed to the toilet lid 2, and the rotary shaft 62b of the rotary damper 5b is fixed to the toilet seat 1. In this embodiment, a toilet seat bracket 1A is formed integrally with the toilet seat 1, and the rotary shaft 62b is fixed to the toilet seat bracket 1A.
The mounting and dismounting device 6 in which the rotary damper 5a is mounted, and the mounting and dismounting device 6 in which the rotary damper 5b is mounted have the same configuration with respect to one another. A pin 3 which is fixed to a toilet bowl (not shown) is mounted on each of the mounting and dismounting devices 6, and thus the toilet seat 1 and the toilet lid 2 are pivotally supported on the toilet bowl by the hinge devices 4a and 4b.
Fig. 2 is a sectional view of the rotary damper 5a of Fig. 1. As shown in Fig. 2, the rotary shaft 62a is inserted into a damper case 66 of the torque generating part 61 of the rotary damper 5a. Then, viscous liquid is filled between the damper case 66 and the rotary shaft 62a. For this reason, if the rotary shaft 62a rotates with respect to the damper case 66, shear resistance of the liquid occurs. In this way, the torque generating part 61 pivotally supports the rotary shaft 62a and imparts a predetermined rotational resistance when the rotary shaft 62a rotates. The rotary shaft 62a is fixed to the toilet lid 2, and therefore, in a case where the toilet lid 2 rotates around the central axis of the rotary shaft 62a, the rotary shaft 62a rotates together with the toilet lid 2. On the other hand, the torque generating part 61 is fixed to the toilet lid 2 through the rotary shaft 62a. Therefore, even if the toilet lid 2 rotates with respect to the toilet bowl, as described above, in a state where the torque generating part 61 is fixed to the toilet bowl through the mounting and dismounting device 6, the torque generating part 61 does not rotate and the rotary shaft 62a rotates with respect to the torque generating part 61. At this time, the torque generating part 61 applies rotational resistance to the rotary shaft 62a, and therefore, the toilet lid 2 to which the rotary shaft 62a is fixed receives the rotational resistance. In this way, the toilet lid 2 is opened and closed with respect to the toilet bowl while receiving a predetermined resistance. Although the rotary shaft 62a is pivotally supported on the toilet seat 1 as well, it is not fixed to the toilet seat 1. For this reason, the rotary shaft 62a idles with respect to the toilet seat 1 and the rotational resistance of the torque generating part 61 is not imparted to the rotation of the toilet seat 1.
The torque generating part 61 of the rotary damper 5b (Fig. 1) pivotally supports the rotary shaft 62b (Fig. 1) in the same manner as the configuration in which the torque generating part 61 of the rotary damper 5a pivotally supports the rotary shaft 62a. Therefore, the rotary shaft 62b imparts a predetermined rotational resistance when rotating with respect to the torque generating part 61. The rotary shaft 62b is fixed to the toilet seat bracket 1A, and therefore, in a case where the toilet seat 1 rotates around the central axis of the rotary shaft 62b, the rotary shaft 62b rotates together with the toilet seat 1. On the other hand, the torque generating part 61 is fixed to the toilet seat 1 through the rotary shaft 62b. Therefore, even if the toilet seat 1 rotates with respect to the toilet bowl, as described above, in a state where the torque generating part 61 is fixed to the toilet bowl through the mounting and dismounting device 6, the torque generating part 61 does not rotate and the rotary shaft 62b rotates with respect to the torque generating part 61. At this time, the torque generating part 61 applies rotational resistance to the rotary shaft 62b, and therefore, the toilet seat 1 to which the rotary shaft 62b is fixed receives the rotational resistance. In this way, the toilet seat 1 is opened and closed with respect to the toilet bowl while receiving a predetermined resistance. Although the rotary shaft 62b is rotatably supported on the toilet lid 2 as well, it is not fixed to the toilet lid 2. For this reason, the rotary shaft 62b idles with respect to the toilet lid 2 and the rotational resistance of the torque generating part 61 is not imparted to the rotation of the toilet lid 2.
Fig. 3 is an external view of the pin 3 of Fig. 1. As shown in Fig. 3, the pin 3 has a rod portion 3A and a head portion 3B as constituent elements. The rod portion 3A is a rod-shaped portion serving as a column for supporting the toilet seat 1 and the toilet lid 2 and has a columnar shape, for example. One end of the rod portion 3A is a fixed end and is fixed to the upper end face side of the toilet bowl. The head portion 3B is a site which protrudes further toward the outside than the outer peripheral surface of the rod portion 3A from the tip on the side opposite to the fixed end of the rod portion 3A and has a spherical crown shape, for example. The head portion 3B protrudes further toward the outside than the outer peripheral surface of the rod portion 3A, and therefore, an outer diameter D1 of the head portion 3B is larger than an outer diameter D2 of the rod portion 3A.
Fig. 4 is an external view of the mounting and dismounting device 6 in which the rotary damper 5a of Fig. 1 is mounted. Fig. 4(A) is a top view of the mounting and dismounting device 6, Fig. 4(B) is a side view of the mounting and dismounting device 6, and Fig. 4(C) is a bottom view of the mounting and dismounting device 6. Further, Fig. 4(D) is a diagram when the mounting and dismounting device 6 is viewed frontally from the side opposite to the side on which the rotary damper 5a is mounted. As shown in Fig. 4, the mounting and dismounting device 6 is provided with a pin case 10 for mounting and dismounting the pin 3, and the damper case 66.
The pin case 10 and the damper case 66 are integrally molded with, for example, resin. The pin case 10 and the damper case 66 may be molded separately and be connected to each other by an adhesive or the like.
The pin case 10 has an insertion section 20, a passage section 30, a guide section 40, and a holding section 50 as constituent elements. These constituent elements will be described with reference to Figs. 5 and 6. Fig. 5 is a diagram when an X-X cross-section of the pin case 10 in Fig. 4 is viewed frontally in the direction of an arrow. Fig. 6 is a diagram showing a state of the pin case 10 in which a portion (the passage section 30) in the direction of an arrow is cut out with a Y-Y plane in Fig. 4 as a cutting plane.
The insertion section 20 is a site having an insertion hole 21 into which the pin 3 is inserted. The insertion hole 21 has an insertion opening 22 in a lower surface F1 of the pin case 10, extends toward the upper side of the pin case 10 from the insertion opening 22, and is connected to a head passage space 31 of the passage section 30. The head passage space 31 is a space in which the head portion 3B of the pin 3 which is inserted into the insertion hole 21 can move in a direction orthogonal to a longitudinal direction of the insertion hole 21.
An opening 23 is formed along the longitudinal direction of the insertion hole 21 at a side surface site of the insertion section 20 configuring the insertion hole 21, and the opening 23 is connected to a guide passage 41 of the guide section 40. The guide passage 41 is a space for leading the rod portion 3A from the insertion hole 21 to a rod disposition space 51, and the rod disposition space 51 is a space for disposing the rod portion 3A therein. An opening width W1 of the opening 23 is larger than the outer diameter D2 of the rod portion 3A. That is, the opening 23 has at least an opening width W1 through which the rod portion 3A of the pin 3 which is inserted into the insertion hole 21 can pass, and may have an opening width W1 through which the head portion 3B of the pin can pass.
The shape, a diameter D3, a height H1, and the like of the insertion hole 21 are not particularly limited as long as the insertion hole 21 is a space into which the pin 3 can be inserted. In this embodiment, the shape of the insertion hole 21 is a cylindrical shape, the diameter D3 of the insertion hole 21 is larger than the outer diameter D1 of the head portion 3B, and the height H1 of the insertion hole 21 is less than or equal to the length of the rod portion 3A. The height H1 of the insertion hole 21 is the distance from the lower surface F1 of the pin case 10 to the boundary with the head passage space 31 of the passage section 30.
Further, in the insertion section 20 of this embodiment, the insertion hole 21 is provided such that the longitudinal direction of the insertion hole 21 is orthogonal to an axial direction of the rotary shaft 62a which is inserted into the damper case 66.
The passage section 30 is a site having the head passage space 31 and is disposed above the insertion section 20, the guide section 40, and the holding section 50. The head passage space 31 extends in the direction orthogonal to the longitudinal direction of the insertion hole 21 and is connected to the insertion hole 21 of the insertion section 20, the guide passage 41 of the guide section 40, and the rod disposition space 51 of the holding section 50. Further, an end portion on the holding section 50 side of the head passage space 31 is closed, and an end portion on the insertion section 20 side is connected to an opening 32 which is formed in an outer wall site along the extension direction of the head passage space 31.
The shape, the width, a height H2, and the like of the head passage space 31 are not particularly limited as long as the head passage space 31 is a space in which the head portion 3B of the pin 3 which is inserted into the insertion hole 21 can move in the direction orthogonal to the longitudinal direction of the insertion hole 21. In this embodiment, the shape of the head passage space 31 is a spherical crown shape, the width of the head passage space 31 is set to be larger than the outer diameter D1 of the head portion 3B, and the height H2 of the head passage space 31 is set to be larger than the height of the head portion 3B. However, the width of at least an area where the head portion 3B is located in a case where the rod portion 3A is disposed in the rod disposition space 51, of the head passage space 31, is set to be less than or equal to the outer diameter D1 of the head portion 3B, and the height H2 of the area is set to be less than or equal to the height of the head portion 3B.
The guide section 40 is a site having the guide passage 41 and is disposed between the insertion section 20 and the holding section 50. The guide passage 41 is connected to the insertion hole 21 of the insertion section 20, the head passage space 31 of the passage section 30, and the rod disposition space 51 of the holding section 50.
Further, the guide passage 41 extends straight from the opening 23 of the insertion hole 21 toward the rod disposition space 51. A width W3 of the guide passage 41 is narrowed toward the rod disposition space 51 from the insertion hole 21, and a height H3 of the guide passage 41 increases toward the rod disposition space 51 from the insertion hole 21. In Fig. 6, for convenience, the height of the guide passage 41 from the insertion hole 21 to the rod disposition space 51 is made to equalize.
The holding section 50 is a site having the rod disposition space 51 and holding the rod portion 3A in the rod disposition space 51 by opening and closing an opening and closing port 52 between the rod disposition space 51 and the insertion hole 21 and is disposed between the guide section 40 and the damper case 66.
The rod disposition space 51 is surrounded by a first frame piece 53 extending from the pin case site opposite to the insertion hole 21 to one end side of the opening and closing port 52 toward the insertion hole 21, and a second frame piece 54 extending from the pin case site to the other end side of the opening and closing port 52 at a distance from the first frame piece 53. The opening and closing port 52 is connected to the distal end side of the guide passage 41 and communicates with the insertion hole 21 through the guide passage 41.
The first frame piece 53 and the second frame piece 54 are bent in the direction orthogonal to the extension direction of the first frame piece 53 and the second frame piece 54, whereby the opening and closing port 52 is opened and closed and a side surface site of the rod portion 3A is pressed by the first frame piece 53 and the second frame piece 54.
A shortest distance D4 passing through the center of the cross section of the rod disposition space 51 in the direction orthogonal to the longitudinal direction thereof is set to be less than or equal to the outer diameter D2 of the rod portion 3A. In this embodiment, the surface being in contact with the rod disposition space 51, of each of the first frame piece 53 and the second frame piece 54, has an arc shape corresponding to the outer peripheral surface of the rod portion 3A, and the rod disposition space 51 has a cylindrical shape.
In a case where the surface being in contact with the rod disposition space 51, of each of the first frame piece 53 and the second frame piece 54, has an arc shape corresponding to the outer peripheral surface of the rod portion 3A, as in this embodiment, the shortest distance D4 passing through the center of the cross section of the rod disposition space 51 in the direction orthogonal to the longitudinal direction thereof means the diameter of the rod disposition space 51.
At a tip site of each of the first frame piece 53 and the second frame piece 54, a protrusion 55 protruding toward the opening and closing port 52 is provided from one end side to the other end side in the longitudinal direction of the rod disposition space 51. The protrusion 55 which is provided at the first frame piece 53 and the protrusion 55 which is provided at the second frame piece 54 face each other with a distance smaller than the width of the opening and closing port 52 therebetween.
The surface on the rod disposition space 51 side of the protrusion 55 has an arc shape conforming to a wall surface configuring the rod disposition space 51. Further, the surface on the insertion hole 21 side of the protrusion 55 has a flat shape conforming to a wall surface configuring the guide passage 41.
In the holding section 50 of this embodiment, a first deflection space 56 for increasing the amount of deflection of the first frame piece 53 is provided on the side opposite to the rod disposition space 51 side with the first frame piece 53 as a boundary, and a thickness TH1 of the first frame piece 53 becomes thinner compared to a case where the first deflection space 56 is not provided. Further, in the holding section 50, a second deflection space 57 for increasing the amount of deflection of the second frame piece 54 is provided on the side opposite to the rod disposition space 51 side with the second frame piece 54 as a boundary, and a thickness TH2 of the second frame piece 54 becomes thinner compared to a case where the second deflection space 57 is not provided.
The first deflection space 56 and the second deflection space 57 communicate with the rod disposition space 51 through the opening and closing port 52, and thus a gap C is formed between the tip of each of the first frame piece 53 and the second frame piece 54 and the distal end of the guide passage 41.
An end portion on the head passage space 31 side of the holding section 50 is made so as to fasten the head portion 3B such that the pin 3 does not come out from the pin case 10, in a case where the rod portion 3A is held in the rod disposition space 51.
The mounting and dismounting device 6 in which the rotary damper 5b is mounted has the same pin case 10 and damper case 66 as those of the mounting and dismounting device 6 in which the rotary damper 5a is mounted, as described above using Fig. 4. However, the disposition position of the damper case 66 is different between the mounting and dismounting device 6 in which the rotary damper 5a is mounted and the mounting and dismounting device 6 in which the rotary damper 5b is mounted. Specifically, the damper case 66 of the mounting and dismounting device 6 in which the rotary damper 5a is mounted is disposed on the holding section 50 side in the pin case 10, as described above, whereas the damper case 66 of the mounting and dismounting device 6 in which the rotary damper 5b is mounted is disposed on the insertion section 20 side in the pin case 10. That is, in the pin case 10 of the mounting and dismounting device 6 in which the rotary damper 5b is mounted, the insertion section 20 is located on the damper case 66 side, the guide section 40 is located next to the insertion section 20, and the holding section 50 is located next to the guide section 40 and on the end portion side of the pin case 10.
Next, the movement of the mounting and dismounting device 6 in a case of mounting the mounting and dismounting device 6 on the pin 3 will be described.
The toilet seat 1 and the toilet lid 2 pivotally supported by the rotary dampers 5a and 5b are gripped by a user. Then, the toilet seat 1 and the toilet lid 2 are lowered from the head portion 3B side of the pin 3 to the rod portion 3A side, and thus the pins 3 of the toilet bowl are inserted into the insertion holes 21 of the mounting and dismounting devices 6 in which the rotary dampers 5a and 5b are mounted. Thereafter, the lower surface F1 side of each of the mounting and dismounting devices 6 is placed on the upper end face of the toilet bowl.
At this time, the head portion 3B of the pin 3 inserted into the insertion hole 21 is located at the site above the insertion hole 21 and connected to the insertion hole 21, of the head passage space 31 of the passage section 30.
Subsequently, the toilet seat 1 and the toilet lid 2 are slid in the direction orthogonal to a direction in which the pin 3 is inserted into the insertion hole 21.
In the mounting and dismounting device 6, the head portion 3B of the pin 3 moves from the insertion section 20 side to the holding section 50 side along the head passage space 31 of the passage section 30. On the other hand, the rod portion 3A of the pin 3 enters the guide passage 41 of the guide section 40 from the opening 23 of the insertion hole 21 and is led to the rod disposition space 51 of the holding section 50 by the guide passage 41.
Since the width W3 of the guide passage 41 is narrowed toward the rod disposition space 51 from the insertion hole 21, the movement of the pin 3 in the width direction is gradually restricted, and the pin 3 is led such that the center in a diametrical direction of the rod portion 3A coincides with the center in the width direction of the opening and closing port 52. Therefore, the mounting and dismounting device 6 can lead the pin 3 to an appropriate position even if a user does not intentionally slide the toilet seat 1 and the toilet lid 2 in the direction orthogonal to the direction in which the pin 3 is inserted into the insertion hole 21.
In a case where the rod portion 3A which is led by the guide passage 41 has reached the opening and closing port 52 of the rod disposition space 51, the first frame piece 53 and the second frame piece 54 configuring the opening and closing port 52 are pushed by the rod portion 3A. In this way, the first frame piece 53 and the second frame piece 54 are deflected in the direction orthogonal to the extension direction thereof, whereby the opening and closing port 52 is opened, and the rod portion 3A enters the rod disposition space 51. Thereafter, due to the elasticity of the first frame piece 53 and the second frame piece 54, the opening and closing port 52 is closed and the side surface site of the rod portion 3A is pressed against the first frame piece 53 and the second frame piece 54.
In this embodiment, the shortest distance D4 passing through the center of the cross section of the rod disposition space 51 in the direction orthogonal to the longitudinal direction thereof is set to be less than or equal to the outer diameter D2 of the rod portion 3A. For this reason, the pressing forces of the first frame piece 53 and the second frame piece 54 against the rod portion 3A become strong compared to a case where the distance D4 is greater than or equal to the outer diameter D2.
Further, the surface being in contact with the rod disposition space 51, of each of the first frame piece 53 and the second frame piece 54, has an arc shape corresponding to the outer peripheral surface of the rod portion 3A. For this reason, the contact area of each of the first frame piece 53 and the second frame piece 54 with the side surface of the rod portion 3A is increased and the pressing force of each of the first frame piece 53 and the second frame piece 54 against the rod portion 3A becomes stronger accordingly.
Further, the first deflection space 56 for increasing the amount of deflection of the first frame piece 53 is provided on the side opposite to the rod disposition space 51 side with the first frame piece 53 as a boundary, and the second deflection space 57 for increasing the amount of deflection of the second frame piece 54 is provided on the side opposite to the rod disposition space 51 side with the second frame piece 54 as a boundary. For this reason, the thickness TH1 of the first frame piece 53 and the thickness TH2 of the second frame piece 54 become thinner compared to a case where the first deflection space 56 and the second deflection space 57 are not provided, and the amount of deflection of each of the first frame piece 53 and the second frame piece 54 increases accordingly, and thus the pressing force of each of the first frame piece 53 and the second frame piece 54 against the rod portion 3A become strong.
Further, the first deflection space 56 and the second deflection space 57 communicate with the rod disposition space 51 through the opening and closing port 52. For this reason, the gap C is formed between the tip of each of the first frame piece 53 and the second frame piece 54 and the distal end of the guide passage 41, whereby the amount of deflection of each of the first frame piece 53 and the second frame piece 54 increases compared to a case where the gap C is not provided, and thus the pressing force of each of the first frame piece 53 and the second frame piece 54 against the rod portion 3A become strong.
In this manner, the mounting and dismounting device 6 has a configuration in which the pressing force of each of the first frame piece 53 and the second frame piece 54 against the rod portion 3A become strong, whereby it is possible to prevent the toilet seat 1 and the toilet lid 2 from coming off from the toilet bowl at the time of opening and closing of the toilet seat 1 and the toilet lid 2.
Further, the protrusion 55 protruding toward the opening and closing port 52 is provided at the tip site of each of the first frame piece 53 and the second frame piece 54 of this embodiment. For this reason, it is possible to prevent the toilet seat 1 and the toilet lid 2 from coming off from the toilet bowl at the time of opening and closing the toilet seat 1 and the toilet lid 2, as compared with a case where the protrusion 55 is not provided.
The surface on the rod disposition space 51 side of the protrusion 55 has an arc shape conforming to the wall surface configuring the rod disposition space 51 and the surface on the insertion hole 21 side of the protrusion 55 has a flat shape conforming to the wall surface configuring the guide passage 41. For this reason, even if the protrusion 55 is present, the rod portion 3A can be smoothly moved to each of the rod disposition space 51 and the guide passage 41.
Incidentally, in a case where the rod portion 3A is disposed in the rod disposition space 51, the head portion 3B of the pin 3 is located at the site above the rod disposition space 51 and connected to the rod disposition space 51, of the head passage space 31 of the passage section 30. Further, in this case, in the holding section 50, as shown in Fig. 7, the head portion 3B is placed on sites exposed to the head passage space 31 side, of the first frame piece 53 and the second frame piece 54, and corresponding to the opening edge on the head passage space 31 side of the rod disposition space 51. That is, an end portion on the head passage space 31 side of the holding section 50 serves as a stopper for fastening the head portion 3B so as not to come out from the pin case 10.
In this embodiment, the width of at least an area where the head portion 3B is located in a case where the rod portion 3A is disposed in the rod disposition space 51, of the head passage space 31, is set to be less than or equal to the outer diameter D1 of the head portion 3B, and the height H2 of the area is set to be less than or equal to the height of the head portion 3B. For this reason, the head portion 3B in a case where the rod portion 3A is disposed in the rod disposition space 51 is pressed against the wall surface configuring the head passage space 31, and thus the movement of the head portion 3B in the head passage space 31 is suppressed.
Further, in this embodiment, the height H3 of the guide passage 41 increases toward the rod disposition space 51 from the insertion hole 21. For this reason, the movement of the pin 3 in the height direction is gradually restricted, and thus, when the rod portion 3A has been disposed in the rod disposition space 51, the head portion 3B can be placed on one end portion in the first frame piece 53 and the second frame piece 54. In addition to this, even if the height of the rod disposition space 51 and the height of the rod portion 3A deviate from each other due to the lower surface F1 of the pin case 10 being shaved or the like, the guide passage 41 allows the head portion 3B to be placed on one end portion in the first frame piece 53 and the second frame piece 54 when the rod portion 3A has been disposed in the rod disposition space 51. Therefore, the mounting and dismounting device 6 can lead the pin 3 to an appropriate position even if a user does not intentionally slide the toilet seat 1 and the toilet lid 2 in the direction orthogonal to the direction in which the pin 3 is inserted into the insertion hole 21.
Further, if the height of the insertion hole 21 varies due to the lower surface F1 of the pin case 10 being shaved or the like, a case where the head portion 3B which should be originally located in the head passage space 31 when the pin 3 has been inserted into the insertion hole 21 is located beside the opening 23 is assumed. Therefore, from the viewpoint of moving the head portion 3B of the pin 3 even if the height of the insertion hole 21 varies, it is preferable that the opening width W1 of the opening 23 in the insertion hole 21 is set to be larger than the outer diameter D1 of the head portion 3B.
Next, the movement of the mounting and dismounting device 6 in a case of removing the mounting and dismounting device 6 from the pin 3 will be described.
The toilet seat 1 and the toilet lid 2 pivotally supported by the rotary dampers 5a and 5b are gripped by a user, and the toilet seat 1 and the toilet lid 2 are slid by the user in the direction orthogonal to the direction in which the pin 3 is inserted into the insertion hole 21.
In the mounting and dismounting device 6, the first frame piece 53 and the second frame piece 54 configuring the opening and closing port 52 are pushed by the rod portion 3A toward the insertion section 20 side from the holding section 50 side. In this way, the first frame piece 53 and the second frame piece 54 are deflected in the direction orthogonal to the extension direction thereof, whereby the opening and closing port 52 is opened, the rod portion 3A is released from the rod disposition space 51, and the pin 3 enters the distal end side of the guide passage 41. Thereafter, the rod portion 3A of the pin 3 moves to the insertion hole 21 along the guide passage 41, and the head portion 3B of the pin 3 moves to the insertion hole 21 along the head passage space 31.
In the passage section 30 of this embodiment, the opening 32 is formed in the outer wall site along the extension direction of the head passage space 31, and the head passage space 31 communicates with the outside of the pin case 10. For this reason, when the head portion 3B is moved from the holding section 50 side toward the insertion section 20, dust in the head passage space 31 is easily discharged to the outside of the pin case 10 through the opening 32 by the head portion 3B. Therefore, the mounting and dismounting device 6 can reduce deterioration or the like which is caused by dust stored in the space.
Subsequently, the toilet seat 1 and the toilet lid 2 are lifted from the rod portion 3A side of the pin 3 to the head portion 3B side, and the pin 3 is pulled out from the insertion hole 21 of the mounting and dismounting device 6.
As described above, in the mounting and dismounting device 6 of this embodiment, it is possible to mount and dismount the pin 3 only by moving the mounting and dismounting device 6 with respect to the pin 3 in the insertion direction of the pin 3 into the insertion hole 21 and the direction orthogonal to the insertion direction. For this reason, according to the mounting and dismounting device 6 of this embodiment, it is not necessary to force a user to perform work other than the work of moving the mounting and dismounting device 6. In this manner, the mounting and dismounting device 6 capable of simplifying the mounting and dismounting work by a user, and the hinge devices 4a and 4b using the mounting and dismounting device 6 are provided.
The present invention has been described above with the above-described embodiment as an example. However, the present invention is not limited to the embodiment.
For example, in the embodiment described above, the mounting and dismounting device 6 of this embodiment has the protrusions 55 provided at the tip sites of both the first frame piece 53 and the second frame piece 54. However, the protrusion 55 may be provided at only one of the first frame piece 53 and the second frame piece 54, and the protrusion 55 may be omitted.
Further, the protrusion 55 is provided from one end side to the other end side in the longitudinal direction of the rod disposition space 51. However, the protrusion may be provided at a part from one end side to the other end side in the longitudinal direction of the rod disposition space 51. In this case, the protrusion which is provided at the tip portion of the first frame piece 53 and the protrusion which is provided at the tip portion of the second frame piece 54 may not face each other, and the number of protrusions which are provided at the first frame piece 53 or the second frame piece 54 may be plural.
Further, in the embodiment described above, the shortest distance D4 passing through the center of the cross section of the rod disposition space 51 in the direction orthogonal to the longitudinal direction thereof is set to be less than or equal to the outer diameter D2 of the rod portion 3A. However, the distance D4 may be set to be larger than the outer diameter D2 of the rod portion 3A.
Since the protrusion 55 tends to become larger as the distance D4 is larger than the outer diameter D2 of the rod portion 3A, durability such as the protrusion 55 being easily folded deteriorates. Therefore, from the viewpoint of improving the durability of the protrusions 55, it is preferable that the distance D4 is set to be less than or equal to the outer diameter D2 of the rod portion 3A.
Further, in the embodiment described above, the first deflection space 56 and the second deflection space 57 are provided. However, they may be omitted. In a case where the first deflection space 56 and the second deflection space 57 are omitted, the pin case portion on the side of the surface configuring the rod disposition space from the pin case site opposite to the insertion hole 21 to one end side of the opening and closing port 52 becomes the first frame piece. On the other hand, the pin case portion on the side of the surface configuring the rod disposition space from the pin case site opposite to the insertion hole 21 to the other end side of the opening and closing port 52 becomes the second frame piece. For this reason, the thickness of the frame piece becomes larger compared to the case of the embodiment, and thus a tendency such as the selection amount of a material type of the pin case 10 decreasing or the amount of deflection of the frame piece being reduced increases. From the viewpoint of suppressing such a tendency, the above-described embodiment in which the first deflection space 56 and the second deflection space 57 are provided is preferable.
Further, in the embodiment described above, the guide section 40 is provided. However, it may be omitted. In a case where the guide section 40 is omitted, the opening 23 of the insertion hole 21 and the opening and closing port 52 of the rod disposition space 51 communicate with each other. However, the tip portions of the first frame piece 53 and the second frame piece 54 may be or may not be connected to the portion of the opening 23.
Further, in the embodiment described above, the holding section 50 for holding the pin 3 having the head portion 3B provided at the tip of the rod portion 3A is adopted. However, for example, a holding section for holding a pin in which a groove recessed inwardly from the outer peripheral surface of the pin is provided at an intermediate portion of the pin may be adopted. In this case, the groove of the pin corresponds to the rod portion 3A of the above-described embodiment and the further upper side than the rod portion 3A corresponds to the head portion 3B of the above-described embodiment. Therefore, a holding section which presses the side surface site of the groove with a first frame piece and a second frame piece is adopted.

Reference Signs List

1:: toilet seat
2:: toilet lid
3:: pin
4a, 4b:: hinge device
5a, 5b:: rotary damper
6:: mounting and dismounting device
10:: pin case
20:: insertion section
30:: passage section
40:: guide section
50:: holding section

Claims

A mounting and dismounting device (6) for a toilet seat and a toilet lid comprising:
a pin (3) and a pin case (10) for mounting and dismounting ; the pin and the pin (3) (3) having a rod portion (3A) and a head portion (3B) protruding from a tip of the rod portion (3A) further toward the outside than an outer peripheral surface of the rod portion (3A),

wherein the pin case (10) includes

an insertion section (20) having an insertion hole (21) into which the pin (3) is inserted,

a passage section (30) having a head passage space (31) which communicates with the insertion hole (21) and allows the head portion (3B) of the pin (3) inserted into the insertion hole (21) to move in a direction orthogonal to a longitudinal direction of the insertion hole (21), and

a holding section (50) having a rod disposition space (51) which communicates with the insertion hole (21) and the head passage space (31) and in which the rod portion (3A) is to be disposed, the holding section (50) holding the rod portion (3A) in the rod disposition space (51) by opening and closing an opening and closing port (52) between the rod disposition space (51) and the insertion hole (21), and

in a case where the rod portion (3A) is held in the rod disposition space (51), an end portion on the head passage space (31) side of the holding section (50) fastens the head portion (3B) such that the pin (3) does not come out from the pin case (10),

characterized in that

the shape of the insertion hole (21) is a cylindrical shape, and the diameter (D3) of the insertion hole (21) is larger than the outer diameter (D1) of the head portion (3B), and the height H1 of the insertion hole (21) is less than or equal to the length of the rod portion (3A),

the insertion hole (21) has an insertion opening (22) in a lower surface (F1) of the pin case (10), and when mounted, the lower surface F1 side of the mounting and dismounting device 6 is placed on the upper end face of the toilet bowl,

the insertion hole (21) extending toward the upper side of the pin case (10) from the insertion opening (22), and is connected to the head passage space (31) of the passage section (30), to allow insertion of the pin (3) : into the insertion hole (21) from the head portion (3A) side of the pin (3) to the rod portion (3B) side of the pin (3).
The mounting and dismounting device (6) according to Claim 1, wherein the rod disposition space (51) is surrounded by a first frame piece (53) extending from a pin case site opposite to the insertion hole (21) to one end side of the opening and closing port (52) toward the insertion hole (21), and a second frame piece (54) extending from the pin case site to the other end side of the opening and closing port (52) at a distance from the first frame piece (53), and the first frame piece (53) and the second frame piece (54) are bent in a direction orthogonal to an extension direction of the first frame piece (53) and the second frame piece (54), whereby the opening and closing port (52) is opened and closed and a side surface site of the rod portion (3A) is pressed by the first frame piece (53) and the second frame piece (54).
The mounting and dismounting device (6) according to Claim 2, wherein
a surface being in contact with the rod disposition space (51), of each of the first frame piece (53) and the second frame piece (54), has an arc shape corresponding to the outer peripheral surface of the rod portion (3A), and
a shortest distance (D4) passing through the center of a cross section of the rod disposition space (51) in a direction orthogonal to a longitudinal direction thereof is set to be less than or equal to an outer diameter (D2) of the rod portion (3A).
The mounting and dismounting device (6) according to Claim 2 or 3, wherein in the holding section (50), a first deflection space (56) for increasing the amount of deflection of the first frame piece (53) is formed on the side opposite to the rod disposition space (51) side with the first frame piece (53) as a boundary, and a second deflection space (57) for increasing the amount of deflection of the second frame piece (54) is formed on the side opposite to the rod disposition space (51) side with the second frame piece (54) as a boundary.
The mounting and dismounting device (6) according to any one of Claims 1 to 4, wherein a width of an area where the head portion (3B) is located in a case where the rod portion (3A) is disposed in the rod disposition space (51), of the head passage space (31), is set to be less than or equal to an outer diameter (D1) of the head portion (3B), and a height (H2) of the area is set to be less than or equal to a height of the head portion (3B).
The mounting and dismounting device (6) according to any one of Claims 1 to 5, wherein
the pin case (10) further includes a guide section (40) having a guide passage (41) which leads the rod portion (3A) from the insertion hole (21) to the rod disposition space (51), and
the guide passage (41) is narrowed in width (W3) toward the rod disposition space (51) from the insertion hole (21).
The mounting and dismounting device (6) according to Claim 6, wherein the guide passage (41) increases in height (H3) toward the rod disposition space (51) from the insertion hole (21).
A hinge device (4a, 4b), comprising:
the mounting and dismounting device (6) according to any one of Claims 1 to 7; and

a rotary damper (5a, 5b) which has a damper case (66) which is connected to the pin case (10) of the mounting and dismounting device (6), and in which a rotary shaft (62a, 62b) is inserted into the damper case (66) and viscous liquid is filled.