Loading and unloading device

Abstract

[Problem] To provide an attachment / detachment device that, when a pin needs to be detached from a housing such as a fixed part, can perform a detachment operation without continuously pressing a button for unlocking with a hand. [Solution] An attachment / detachment device (10) is provided with a pin (11), a housing (15), and an operation button (13) having a pair of control elements (13b) provided with: locking claw parts (20a) disposed facing each other at a distance smaller than the outer diameter of a contact part (11b) of the pin (11), and locking claw parts (20b) disposed facing each other at a distance smaller than the outer diameter of the contact part (11b) of the pin (11); and unlocking locking claw parts (20b) which are disposed facing each other at the same interval as the outer diameter of the contact part (11b) of the pin (11), and which are provided so as to be slidable between a "locked position" where the locking locking claw parts (20a) correspond to the pin insertion hole (14) of the housing (15), and a "unlocked position" where the locking locking claw parts (20a) correspond to the pin insertion hole (14) of the housing (15). The unlocking position is a position where the locking claw part (20b) for unlocking corresponds to the pin insertion hole (14).

Description

Technical Field

[0001] The invention relates to a mounting and dismounting device, for example, suitable for mounting a toilet seat on a toilet in a free mounting and dismounting manner. Background Art

[0002] For example, Patent Document 1 describes a mounting and dismounting mechanism that allows a toilet seat and lid to be freely mounted and dismounted relative to a toilet bowl. This mounting and dismounting mechanism includes a fixing portion, which is connected to the toilet bowl, and a mounting and dismounting portion, which is mounted on a hinge assembly connected to the toilet seat and lid. Furthermore, the fixing portion is provided with a pin having a groove formed along the circumference. On the one hand, the mounting and dismounting portion includes a housing, a shaft disposed within the housing and slidable relative to the housing, a spring that biases the shaft in a predetermined direction, and a button that pushes the shaft against the biasing force of the spring. Furthermore, the housing has an insertion hole formed therein, into which the pin is inserted.

[0003] When the toilet seat and lid are installed, the pin of the fixing portion is inserted into the insertion hole of the housing. At this point, the force of the pin pushes the shaft against the biasing force of the spring, causing it to slide. When the pin and shaft are in a predetermined position, the biasing force of the spring pushes the shaft back to its original orientation, with a portion of the shaft entering the groove formed by the pin. This locks the pin in the insertion hole, locking the fixing portion and the mounting and removal portion together.

[0004] On the one hand, to remove the toilet seat and lid from the toilet, the button is pressed in against the biasing force of the spring while removing the fixing portion and the attachment / detachment portion. This causes the portion of the shaft that has been inserted into the recess of the pin to disengage from the recess. This releases the locked state of the pin, allowing it to be withdrawn from the insertion hole. This allows the attachment / detachment portion to be detached from the fixing portion.

[0005] Prior art literature

[0006] Patent Literature

[0007] Patent Document 1: European Patent Publication No. 2324745 Summary of the Invention

[0008] Problems to be solved by the invention

[0009] In the invention described in Patent Document 1, for example, to remove the toilet seat and lid from the toilet, the pin must be removed from the fixing portion. To do this, the user must manually press and hold the unlock button against the spring bias, further lifting the toilet seat and lid to pull the pin from the fixing portion for removal. This results in poor operability.

[0010] Therefore, a technical problem that needs to be solved arises, that is, when the pin needs to be removed from the housing of the fixing portion, the removal operation can be performed even without continuously pressing the unlocking button by hand. The purpose of the present invention is to solve this problem.

[0011] Solutions for solving problems

[0012] The present invention is proposed to achieve the above-mentioned purpose, and claim 1 provides a loading and unloading device, which includes a pin, a shell and an operating button, characterized in that the pin has, in sequence from the insertion end side: a guide portion, which is formed in a conical shape toward the insertion end side; a cylindrical contact portion; and an annular locking groove, which is formed on the outer peripheral surface of the pin, and the shell has: an operating button insertion space, which is formed in the shell along the axis of the shell from one end side of the shell to the other end side; and a pin insertion hole, which passes through the operating button insertion space from the outer peripheral surface of the shell, and the operating button has: a button main body that can be operated from the outside, a part of the button main body being arranged on the operating button insertion space in a slidable manner along the axis. and a pair of control members, each of which is fixed on the button main body on the side of the operation button insertion space, and is provided with: a locking latch claw portion, which is arranged opposite to each other at a spacing smaller than the outer diameter of the contact portion; and an unlocking latch claw portion, which is arranged opposite to each other on the outer side of the locking groove to maintain the spacing of the outer peripheral surface of the contact portion, and the operation button is configured to be able to slide between a locked position and an unlocked position, the locked position being a position where the locking latch claw portion corresponds to the pin insertion hole, and the unlocking position being a position where the unlocking latch claw portion corresponds to the pin insertion hole. In addition, the operation button also has a hook portion, which is engaged with the operation button in the locked position when the locking latch claw portion moves to the locked position.

[0013] According to this structure, when the operating button is configured in the locked position, and the locked state in which the locking pawl is engaged with the locking groove of the pin is changed to the unlocked state in which the engagement between the pin and the housing is released, the button body is pushed in from the outside to move the operating button to the unlocked position. As a result, the pair of control members of the operating button and the operating button body are simultaneously moved to the unlocked position. When the pair of control members are moved to the unlocked position, the locking pawl disengages from the locking groove of the pin, and the unlocking pawl corresponds to the outer peripheral surface of the contact portion of the pin, maintaining the outer peripheral surface of the contact portion. Therefore, when it is necessary to release the engagement between the housing and the pin, the engagement between the pin and the housing can be released and removed, even without continuously pressing the unlocking operating button.

[0014] The invention described in claim 2 is a loading and unloading device according to claim 1, characterized in that the shell further has a groove portion, and when the operation button and the pair of control members are moved to the locking position simultaneously while restricting the movement of the operation button, the groove portion locks the hook portion.

[0015] According to this structure, the movement of the operating button is restricted in the longitudinal direction of the shell, that is, the front-to-back direction. At the same time, when the operating button is moved to the locked position and the pin is engaged with the shell, the hook is stopped at one end of the groove, and the operating button and a pair of control parts can be maintained in the locked position.

[0016] The invention described in claim 3 is the attaching and detaching device according to claim 1 or 2, characterized in that a spring mechanism is provided between the housing and the operating button, and the spring mechanism biases the operating button toward the lock position.

[0017] According to this structure, when the pressing force of the operation button is released and the button returns from the unlocked position to the locked position, the biasing force of the spring mechanism can be used as the return force of the operation button to provide the automatic locking function.

[0018] The invention described in claim 4 is a loading and unloading device according to claim 1, characterized in that a guide inclined surface is provided in at least one side control member of the pair of control members, between the locking latch claw portion and the unlocking latch claw portion, when the operating button moves from the locking position to the unlocking position, the guide inclined surface contacts the outer peripheral surface of the contact portion to elastically deform the one side control member in a direction away from the other side control member, thereby pushing the pair of control members apart.

[0019] According to this structure, when the operating button moves from the locked position to the unlocked position, the guiding inclined surface provided on the control member contacts the outer peripheral surface of the contact portion of the locking pin, at least one control member undergoes elastic deformation and moves away from the other control member, pushing the gap between a pair of control members apart, and the contact portion of the pin is arranged between the pushed unlocking latch claw portions, so that the operating button can move smoothly from the locked position to the unlocked position.

[0020] The invention described in claim 5 is a loading and unloading device according to claim 2, characterized in that the grooves are a pair, respectively arranged at positions opposite to each other so as to clamp the operation button insertion space, and the hook is arranged in a pair corresponding to the pair of grooves.

[0021] According to this structure, in the locking position, the pair of hook portions are engaged with one ends of the pair of groove portions, respectively, so that stable engagement can be achieved.

[0022] The invention described as a pair of 6 is a loading and unloading device according to a pair of 5, characterized in that the shell is provided with slits formed from the opening of the shell toward the other end side of the shell on both left and right sides of the groove portion.

[0023] According to this structure, the elasticity around the groove portion can be increased, and the assembly work of mounting the operation button to the housing can be facilitated.

[0024] Effects of the Invention

[0025] According to the present invention, when the pin is released from the housing, as the button body moves to the unlocked position, the unlocking pawls of the pair of control members move to the unlocked position along with the button body, disengaging the locking pawls from the locking grooves of the pin. Simultaneously, the unlocking pawls correspond to the outer circumference of the contact portion of the pin, maintaining the outer circumference of the contact portion. This eliminates the constraint on the pin caused by the pair of control members. Furthermore, the operating button can remain in the unlocked position. Therefore, when the housing and pin need to be released, the pin and housing can be released and disassembly can be performed without continuously pressing the unlocking operating button. This simplifies the operation.

[0026] Furthermore, since the number of components is small and the device can be composed of three components, namely, a pin, a housing, and an operating button, the cost can be reduced and the device can be provided at a low price. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] [ Figure 1 ] is an embodiment of a mounting and dismounting device related to an embodiment of the present invention, showing an example of mounting and dismounting a toilet lid by a fixed portion fixed relative to a toilet bowl. Figure 1 (a) is a diagram showing the state before bonding, Figure 1 (b) is a diagram showing the state after combination, Figure 1 (c) is displayed Figure 1 A partial enlarged view of (a).

[0028] [ Figure 2 ] is a top view of the above-mentioned loading and unloading device.

[0029] [ Figure 3 ] is the above-mentioned mounting and dismounting device showing the pin and the mounting and dismounting portion in a state of being coupled to each other, Figure 3 (a) is its external stereogram, Figure 3 (b) is Figure 3 (a) is a cross-sectional view in the direction of the arrow line AA.

[0030] [ Figure 4 ] is a diagram showing the internal structure of the above-mentioned loading and unloading device by cutting open the shell.

[0031] [ Figure 5 ] is a disassembled three-dimensional diagram of the above-mentioned loading and unloading device.

[0032] [ Figure 6 ] is an overhead view of the operating button in the above-mentioned loading and unloading device.

[0033] [ Figure 7 ] is a three-dimensional diagram of the operating button in the above-mentioned loading and unloading device, Figure 7 (a) is a view from the top, Figure 7 (b) View from the bottom.

[0034] [ Figure 8 ] is a diagram illustrating the installation action of the above-mentioned loading and unloading device, and is a top view of the loading and unloading device shown in a state where the operating button is moved to the locked position.

[0035] [ Figure 9 ] is a diagram illustrating the installation action of the above-mentioned loading and unloading device, and is a three-dimensional diagram showing the engaging state of the pin of the operating button.

[0036] [ Figure 10 ] is a diagram illustrating the action when the above-mentioned loading and unloading device is combined, and is a side view showing the configuration position of the operation button and pin.

[0037] [ Figure 11 ] is a diagram illustrating the installation action of the above-mentioned loading and unloading device, and is a top view of the loading and unloading device showing the state in which the operation button is moved to the unlocked position.

[0038] [ Figure 12 ] is a diagram illustrating the state of the above-mentioned loading and unloading device when it is disengaged, and is a three-dimensional diagram showing the engaging state of the pin based on the operation button.

[0039] [ Figure 13 ] is a diagram illustrating the state of the above-mentioned loading and unloading device when it is detached, and is a side view showing the configuration position of the operation button and pin. DETAILED DESCRIPTION

[0040] The object of the present invention is to provide a loading and unloading device, wherein, when a pin needs to be removed from a housing of a fixing portion or the like, the disassembly operation can be performed without manually pressing a button to release the lock. The loading and unloading device includes a pin, a housing, and an operating button, and is characterized in that the pin has, in order from the insertion end side: a guide portion, which is formed into a conical shape toward the insertion end side; a cylindrical contact portion; and an annular locking groove, which is formed on the outer peripheral surface of the pin, and the housing has: an operating button insertion space, which is formed in the housing along the axis of the housing from one end side of the housing to the other end side; and a pin insertion hole, which passes through the operating button insertion space from the outer peripheral surface of the housing, and the operating button has: a button main body that can be operated from the outside, a part of the button main body being arranged in the operating button insertion space in a slidable manner along the axis; and a pair of control members, the pair of The control parts are respectively fixed on the button main body part on the side of the operation button insertion space, and are provided with: a locking latch claw part, which is arranged opposite to each other at a spacing smaller than the outer diameter of the contact part; and an unlocking latch claw part, which is arranged opposite to each other on the outside of the locking groove to maintain the spacing of the outer peripheral surface of the contact part, and the operation button is configured to be able to slide between a locked position and an unlocked position, the locked position being a position where the locking latch claw part corresponds to the pin insertion hole, and the unlocking position being a position where the unlocking latch claw part corresponds to the pin insertion hole. In addition, the operation button also has a hook part, which is engaged with the operation button at the locked position when the locking latch claw part moves to the locked position.

[0041] Example

[0042] An embodiment of the present invention will be described in detail below with reference to the accompanying drawings. In the following embodiments, references to the number, value, quantity, range, etc. of components are not limited to specific quantities unless otherwise specified or clearly limited to specific quantities in principle. References to these numbers may be above or below the specified number.

[0043] Furthermore, when referring to the shape, positional relationship, etc. of components, unless otherwise specified or clearly considered to be otherwise in principle, the shape, etc. are included as being substantially similar or similar to the shape, etc.

[0044] In addition, the drawings may be exaggerated to make features easier to understand, such as by enlarging certain features, and the dimensions and proportions of the components may not necessarily be the same as in reality. Furthermore, in cross-sectional views, hatching may be omitted for some components to make the cross-sectional structure of the components easier to understand.

[0045] In the following description, expressions indicating directions such as up and down, and left and right are not absolute. While appropriate when the various components of the loading and unloading device of the present invention are in the depicted positions, if these positions are changed, the description should be modified accordingly. Throughout the description of the embodiments, identical elements are denoted by identical reference numerals. Figure 2 、 Figure 8 、 Figure 10 、 Figure 11 and Figure 13 The position of the symbol L shown in represents the position of the touch operation portion 13ab when the operation button 13 described below is in the "lock position", and the position of the symbol U represents the position of the touch operation portion 13ab when the operation button 13 described below is in the "unlock position".

[0046] Figure 1 As an embodiment of the attachment and detachment device 10 related to the present invention, an example of attaching and detaching a toilet lid 102 using a fixing portion fixed to a toilet bowl is shown. Figure 1 (a) is a diagram showing the state before bonding, Figure 1 (b) is a diagram showing the state after combination, Figure 1 (c) is displayed Figure 1 A partial enlarged view of (a).

[0047] exist Figure 1 In the embodiment, the mounting and dismounting device 10 comprises: a pin 11 fixed to a fixing portion 101 mounted on a toilet (not shown) and protruding from the fixing portion 101; and a mounting and dismounting portion 12 mounted on a toilet lid 102 by rotating a hinge mechanism (not shown). Figure 1 As shown in (a) and (c), when the operation button 13 is configured in the unlocked position described later, the detachable portion 12 mounted on the toilet lid 102 is inserted into the detachable portion 12 from the pin insertion hole 14, so that the pin 11 and the detachable portion 12 are engaged with each other. Figure 1 As shown in (b), the toilet cover 102 can be connected to the fixing member 101 (toilet side). Conversely, when removing the toilet cover 102 from the fixing part 101, the operation button 13 provided on the mounting and detaching part 12 is pushed into the unlocked position described later and configured, for example, by lifting the toilet cover 102 side and pulling the pin 11 out of the mounting and detaching part 12, the toilet cover 102 can be removed from the fixing part 101.

[0048] Figures 2 to 5 The structure of the single body of the loading and unloading device 10 is shown. Figure 2 A top view of the handling device 10 is shown; Figure 3 The mounting and dismounting device 10 is shown with the pin 11 and the mounting and dismounting member 12 in a combined state. Figure 3 (a) is an external stereoscopic view of the device, Figure 3 (b) is the cross-sectional view of (a) along the AA line. Figure 4 The housing 15 is cut away to show the internal structure of the loading and unloading device 10 . Figure 5 It is an exploded perspective view of the loading and unloading device 10.

[0049] From Figures 2 to 5 In the embodiment, the attaching and detaching device 10 includes a pin 11 and an attaching and detaching portion 12. The attaching and detaching portion 12 includes a housing 15, an operating button 13, and a coil spring 23.

[0050] The pin 11 is a cylindrical member with a circular horizontal cross-section, formed from a metal or resin material. From the insertion end of the pin 11 into the housing 15 of the attachment / detachment portion 12, the pin 11 has, in this order: a so-called conical guide portion 11a, whose outer dimensions gradually decrease toward the insertion end; a cylindrical contact portion 11b; and an annular locking groove 11c circumferentially formed on the outer circumference of the pin 11. The diameter of the cylindrical contact portion 11b is equal to or slightly smaller than the outer diameter of the base end of the pin 11.

[0051] The operation button 13 is made of resin material. Figure 6 and Figure 7 The structure of the operation button 13 is shown in FIG. Figures 2 to 5 as well as Figure 6 and Figure 7 .

[0052] The operation button 13 integrally includes a button body 13 a , a pair of control pieces 13 b , an engaging claw 13 c , and a spring positioning groove 13 d .

[0053] The button body 13a includes a cylindrical sliding portion 13aa and a touch operation portion 13ab, which is integrally formed with the sliding portion 13aa. The sliding portion 13aa has an outer diameter that is approximately equal to the inner diameter of an operation button insertion space 15a (described later) within the housing 15, and is configured to slide within the operation button insertion space 15a. Furthermore, the outer diameter of the touch operation portion 13ab is larger than the inner diameter of the operation button insertion space 15a and is formed to be approximately equal to the outer diameter of the housing 15.

[0054] A pair of control members 13b are formed in the sliding portion 13aa, extending horizontally toward the operation button insertion space 15a and extending approximately perpendicularly to the surface opposite the surface where the touch operation portion 13ab is provided. Furthermore, the pair of control members 13b are formed so as to face each other and be parallel to each other. Each control member 13b is elastic and deformable, and is provided with an unlocking latch 20b and a locking latch 20a in sequence, starting from the sliding portion 13aa. Furthermore, a guide inclined surface 13e is formed between the unlocking latch 20b and the locking latch 20a.

[0055] In a pair of control members 13b, as Figure 6 As shown, the gap S1 between the locking claws 20a is set to be smaller than the outer diameter of the contact portion 11b of the pin 11 and larger than the outer diameter of the locking groove 11c, while the gap S2 between the unlocking claws 20b is set to be smaller than the outer diameter of the contact portion 11b and larger than S1. Furthermore, the unlocking claws 20b are formed into an arc shape corresponding to the outer diameter of the contact portion 11b.

[0056] Furthermore, the thickness of the locking hook portion 20a provided on each control member 13b (the thickness in the direction of insertion of the pin 11) is such that when the pin 11 is arranged in the engaging position in the pin insertion hole 14 of the housing 15, which will be described later, the locking hook portion 20a enters the locking groove 11c of the pin 11 and is a thickness that can be engaged with the locking groove 11c (see FIG. Figure 9 and Figure 10 ). Moreover, the gap S1 between the locking claws 20a is such that when the pin 11 is inserted and arranged in the final position of the pin insertion hole 14, the locking claws 20a of the pair of control members 13b can respectively enter the locking groove 11c and can be engaged with the pin 11 (refer to the same Figure 9 and Figure 10 ).

[0057] On the other hand, the thickness of the unlocking latch 20b provided on each control member 13b (the thickness in the insertion direction of the same pin 11) is such that when the pin 11 is located in the engaging position in the pin insertion hole 14 of the housing 15, the unlocking latch 20b is arranged astride the locking groove 11c and the contact portion 11b of the pin 11 (see Figure 12 and Figure 13 ). Moreover, the gap S2 between the unlocking latching claws 20b is such that when the pin 11 is inserted and arranged in the final position in the pin insertion hole 14, the unlocking latching claws 20b of the pair of control members 13b clamp the outer peripheral surface of the contact portion 11b to hold the pin 11 (refer to the same Figure 12 and Figure 13At this time, the operating button 13 is constrained in the longitudinal direction (along the axis of the housing 15) from one end side of the housing 15 (the side where the operating button 13 is inserted) to the other end side, and can be moved with a light force in the direction of inserting and removing the pin 11 (the direction perpendicular to the axis of the housing 15).

[0058] Furthermore, the guide inclined surface 13e is located between the end portion of the locking latch 20a and the start portion of the unlocking latch 20b on each control member 13b. When the pin 11 is positioned in the engaging position in the pin insertion hole 14 of the housing 15, which will be described later, the guide inclined surface 13e is formed at a position corresponding to the outer peripheral surface of the contact portion 11b of the pin 11. Figure 5 、 Figure 6 and Figure 7 As shown, the guide inclined surface 13e is inclined so that the surface on the locking latch claw 20a side is located at the outermost side, protrudes inwardly as it approaches the unlocking latch claw 20b side, is connected to the unlocking latch claw 20b, and is formed in a state of continuous inclination from the locking latch claw 20a side to the unlocking latch claw 20b side.

[0059] Moreover, the guide inclined surface 13e is formed so that when the operating button 13 is in the "locked position" as described later, each locking catch 20a enters the locking groove 11c of the pin 11 and engages in the locking groove 11c. When each locking catch 20a moves from the locked state of preventing the pin 11 from being pulled out to the "unlocked position" side of the operating button 13, it contacts the outer peripheral surface of the contact portion 11b in the pin 11 and causes each control member 13b to elastically deform in the outward direction (in the direction in which the gap S1 and the gap S2 widen), thereby widening the gap S1 and the gap S2 and guiding the contact portion 11b to enter the locking catch 20b.

[0060] Furthermore, the button body 13a is provided with a latching claw 13c, serving as a hooking mechanism, on the outer circumference of the sliding portion 13aa, between the front face connected to the pair of control members 13b and the opposite touch operation portion 13ab. The latching claws 13c are located approximately midway between the pair of control members 13b, formed at positions offset 180° from each other, and are provided as a pair protruding from the outer circumference of the sliding portion 13aa.

[0061] The spring positioning grooves 13d are arranged in a pair, each corresponding to a latching claw 13c provided on the outer circumference of the sliding portion 13aa. They extend from the front of the sliding portion 13aa, opposite the touch operation portion 13ab, to directly in front of the latching claw 13c. Thus, the pair of spring positioning grooves 13d are located approximately midway between the pair of control members 13b and are formed at positions offset 180° from each other. Furthermore, the pair of spring positioning grooves 13d extend across the front and outer circumference of the sliding portion 13aa, opening in a groove-like shape.

[0062] The housing 15 is made of resin material. Figures 2 to 4 To explain, the housing 15 has an operating button insertion space 15a defined within it. The operating button insertion space 15a extends from one end of the housing 15 (where the operating button 13 is inserted) to the other end (along the axis of the housing 15), with one end open. Furthermore, the housing 15 is provided with a pin insertion hole 14 extending from its outer peripheral surface into the operating button insertion space 15a, and a groove 19 for restricting the movement of the operating button 13.

[0063] More specifically, the operating button insertion space 15a is provided with a slider housing space 15aa, which is a circular space for housing the slider 13aa of the operating button 13 so that it can slide in the longitudinal direction of the housing 15, i.e., the front-to-back direction; a control member housing space 15ab, which can slidably house a pair of control members 13b in the same longitudinal direction; and a pair of spring housing spaces 15ac for accommodating the coil springs 23. Furthermore, the control member housing space 15ab and the spring housing space 15ac are provided continuously within the slider housing space 15aa.

[0064] The groove 19 corresponds to the latching claw 13c provided on the sliding portion 13aa of the operating button 13. The latching claw 13c is formed longitudinally (along the axis) from the open end (rear end) of the housing 15, along the longitudinal direction of movement within the operating button insertion space 15a, along with the sliding portion 13aa. Furthermore, the latching claw 13c is disposed within the groove 19. This restricts the movement of the operating button 13 to the longitudinal region of the groove 19. Furthermore, in this embodiment, the width of the groove 19 is set to be greater than the left-right width of the latching claw 13c. Furthermore, the housing 15 includes a pair of slits 21 on both left and right sides of the clamping groove 19. These slits 21 extend substantially parallel to the groove 19 from the opening of the housing 15 toward the other end. These slits 21 provide increased elasticity around the groove 19. Consequently, when the operating button 13 with the convex latching claw 13c is installed in the housing 15, the elastic deformation around the groove 19 facilitates assembly. In the present embodiment, the groove 19 is formed by a through hole extending from the outer peripheral surface of the housing 15 to the operation button insertion space 15 a . However, the groove 19 may be a groove or the like instead of a through hole.

[0065] The slider housing space 15aa guides the movement of the slider 13aa of the operation button 13 in the housing 15 , and its inner diameter is formed to be substantially equal to the outer diameter of the slider 13aa .

[0066] The control member storage space 15ab guides the movement of a pair of control members 13b in the front-to-back direction (push-in / push-out direction), and its left-right width is slightly larger than the left-right outer width of the pair of control members 13b, so that the pair of control members 13b can be elastically deformed in the left-right direction respectively, and the space for the contact portion 11b of the pin 11 to be configured between the pair of control members 13b is ensured.

[0067] A pair of spring storage spaces 15ac are provided corresponding to the spring positioning groove portions 13d provided in the button body portion 13a of the operation button 13, and are used to position and retain the compression coil spring 23, so as to serve as a spring mechanism configured between the housing 15 and the button body portion 13a.

[0068] The pin insertion hole 14 has an inner diameter sufficient to allow the pin 11 to be inserted therethrough. When the pair of control members 13b of the operating button 13 are in the "locked position," the pin insertion hole 14 is located at a position vertically corresponding to the locking latch 20a. On the other hand, when the pair of control members 13b of the operating button 13 are in the "unlocked position," the pin insertion hole 14 is located at a position vertically corresponding to the unlocking latch 20b.

[0069] In the thus configured attachment and detachment device 10, the attachment and detachment unit 12 is inserted into the operating button 13 from the opening of the housing 15. At this point, the control member 13b is positioned within the control member storage space 15ab, while a pair of coil springs 23, serving as spring means, are each compressed within the spring storage space 15ac. Furthermore, the sliding portion 13aa is positioned within the sliding portion storage space 15aa. The coil spring 23 need not necessarily be a coil spring, as long as it is a spring material that biases the operating button 13 toward the "locked position."

[0070] Furthermore, when the hook claw 13c of the touch operation portion 13ab is hooked with one end of the groove 19 in the sliding portion receiving space 15aa, as shown in FIG. Figures 2 to 4 as well as Figures 8 to 10 As shown in FIG. 1 , a portion of the sliding portion 13aa of the operation button 13 protrudes from one end of the housing 15 with a large stroke together with the button body 13, indicating that the operation button 13 is in the "locked position". In contrast, in the sliding portion receiving space 15aa, when the latch claw 13c of the touch operation portion 13ab is located at the other end of the groove 19, as shown in FIG. Figures 11 to 13 As shown, when the sliding portion 13aa of the operating button 13 is pushed into the housing 15, the button body 13a is roughly in close contact with one end of the housing 15, and the pin insertion hole 14 and the unlocking latch 20b correspond to each other in the upper and lower parts, the operating button 13 is in the "unlocked position" state.

[0071] Next, through Figures 2 to 4 、 Figures 8 to 13The operation of the thus constructed loading and unloading device 10 will be described.

[0072] When the pin 11 and the attachment / detachment portion 12 are combined (see Figures 2 to 4 ,as well as Figures 8 to 10 ):

[0073] like Figures 2 to 4 ,as well as Figures 8 to 10 As shown, when the pin 11 and the attachment / detachment portion 12 are engaged, with the operating button 13 protruding from the housing 15 with a large stroke (i.e., in the "locked position"), the pin 11 is inserted into the housing 15 from the guide portion 11a through the pin insertion hole 14. Furthermore, when the pin 11 reaches the position of the pair of control members 13b, the guide portion 11a strikes the lower edges of the locking claws 20a of the pair of control members 13b. This impact of the guide portion 11a on the lower edges of the locking claws 20a pushes the pair of control members 13b upward (along the direction of movement of the guide portion 11a) while simultaneously pushing the pair of control members 13b outward in the left-right direction. Furthermore, as the contact portion 11b cuts into the locking claws 20a of the pair of control members 13b, the tip of the pin 11 strikes the wall surface within the housing 15 and enters. Furthermore, when the front end of the pin 11 hits the wall surface inside the housing 15, the guide portion 11a also passes between the locking catch portions 20a, and the locking catch portions 20a in the pair of control members 13b correspond to the locking grooves 11c. Moreover, the elastic energy stored in the pair of control members 13b is released, and the pair of control members 13b returns to their original shapes. Therefore, the elastic restoring force of the pair of control members 13b causes each locking catch portion 20a to enter the locking groove 11c, thereby forming a snap-fit ​​state, that is, it is automatically locked. This locking state is as follows: Figures 2 to 4 ,as well as Figure 8 As shown, the slide portion 13 aa of the operation button 13 is in a state of protruding from the housing 15 together with the touch operation portion 13 ab.

[0074] When the pin 11 and the attachment / detachment portion 12 are separated (see Figures 11 to 13 ):

[0075] When the pin 11 and the detachable portion 12 are separated, Figures 2 to 4 ,as well as Figure 8 The touch operation portion 13ab protruding from the housing 15 is pushed into the inner side of the housing 15. Then, the entire operation button 13 in the "locked position" is moved to the "unlocked position" side while compressing the coil spring 23.

[0076] When the touch operation part 13ab moves to the inner side of the shell 15, the guide inclined surface 13e formed in a continuously inclined state from the locking latch claw part 20a side to the unlocking latch claw part 20b side contacts the contact part 11b of the pin 11. In addition, as the operation button 13 moves to the "unlocked position", the gap between the pair of control parts 13b is further opened, and the locking latch claw part 20a is also pulled out from the locking groove 11c. Then, the operation button 13 is further moved while the contact part 11b is cut between the pair of control parts 13b. When the operation button 13 is completely moved to the "unlocked position", each unlocking latch claw part 20b of the pair of control parts 13b corresponds to the position corresponding to the contact part 11b, as shown in FIG. Figure 12 and Figure 13 As shown, each unlocking latch 20b does not enter the locking groove 11c, but instead slowly contacts the outer circumference of the contact portion 11b of the pin 11 and, without restraining the pin 11, clamps the outer circumference of the contact portion 11b, thereby releasing the lock relative to the pin 11. When the operating button 13 is in the "unlocked position," the spring force of the coil spring 23 reaches its maximum, maintaining the operating button 13 in the "unlocked position." Furthermore, the clamping force of each unlocking latch 20b of the pair of control members 13b is set to be greater than the spring force of the coil spring 23. This prevents the operating button 13 from moving to the "locked position."

[0077] Furthermore, when the operating button 13 is held in the "unlock position" for releasing the lock of the pin 11, if the pin 11 or the mounting and dismounting portion 12 is moved in the axial direction of the pin 11, the pin 11 can be easily pulled out of the pin insertion hole 14, and the pin 11 can be separated from the mounting and dismounting portion 12. Here, the spring force of the coil spring 23 and the clamping force of the unlocking latching claws 20b of the pair of control members 13b act on the pin 11. Figure 12 The arrows A and B in the figure act on Figure 13 On the surface indicated by symbol D (hereinafter referred to as D surface). Make the pin 11 or the mounting and dismounting portion 12 along the axial direction of the pin 11 ( Figure 12 The force of movement (in the direction of arrow C in the figure) is perpendicular to the D surface. Since there is no snap contact portion 11b and the unlocking latch claw portion 20b, the pin 11 can be pulled out of the pin insertion hole 14 with a lighter force, so that the pin 11 is separated from the loading and unloading portion 12.

[0078] When the pin 11 is removed from the pin insertion hole 14, the spring force accumulated in the coil spring 23 returns the operating button 13 to the "locked position" where the locking claw 13c of the button body 13a is engaged with one end of the groove 19. Then, the pin 11 is inserted into the pin insertion hole 14 again and engaged.

[0079] Therefore, according to the mounting and detaching device 10 constructed in this embodiment, when the pin 11 is engaged with the housing 15 serving as the mounting and detaching portion 12, and the operating button 13 serving as the button body is in the "locked position," if the pin 11 is inserted into the pin insertion hole 14 of the housing 15, the locking catches 20a of the pair of control members 13b are released outward once, allowing insertion. When the pin 11 is inserted to a predetermined position, the locking catches 20a automatically engage and snap into the locking grooves 11c of the pin 11, automatically locking the pin 11. Thus, when the pin 11 is engaged with the mounting and detaching portion 12, the pin 11 can be locked simultaneously by simply inserting the pin 11 into the pin insertion hole 14 of the housing 15, without manually operating the operating button 13, thereby simplifying the operation.

[0080] Conversely, when the engagement between the pin 11 and the housing 15, which serves as the attachment / detachment portion 12, is released, the operating button 13, which serves as the button body, is pushed into the housing 15, moving it to the "unlocked position." Consequently, the unlocking latches 20b of the pair of control members 13b move together with the operating button 13 to the "unlocked position." At this point, the engagement between the locking latches 20a of the pair of control members 13b and the locking grooves 11c is released. However, the unlocking latches 20b of the pair of control members 13b hold the outer circumference of the contact portion 11b, maintaining the operating button 13 in the "unlocked position." This allows for easier disassembly between the housing 15 and the pin 11 without having to manually press the unlocked operating button 13. Furthermore, if the pin 11 is removed, the spring force accumulated in the coil spring 23 disengages the engagement between the latch claw 13c and the unlocking latch portion 19b, and the operating button 13 and the pair of control members 13b return to the "locked position", thereby further simplifying the operation.

[0081] When the operating button 13 moves from the "locked position" to the "unlocked position", the guiding inclined surface 13e provided on the control member 13b contacts the outer peripheral surface of the contact portion 11b of the pin 11, and the pair of control members 13b are elastically deformed and separated from each other, pushing the gap between the pair of control members 13b. The contact portion 11b of the pin 11 is arranged between the pushed-apart locking claw portions 20b, so that the operating button 13 can move smoothly from the "locked position" to the "unlocked position".

[0082] Furthermore, in this embodiment, a structure in which a pair of control members 13b are provided is disclosed, but a structure in which a control member 13b is provided on at least one side may also be adopted.

[0083] In addition, this embodiment illustrates an example of a combination of a pin 11 and a loading and unloading portion 12, wherein the pin 11 protrudes from a fixed portion 101 installed on a toilet (not shown), and the loading and unloading portion 12 is installed on a toilet seat 102 via a hinge mechanism. However, the present invention is not limited to the loading and unloading of toilets and toilet seats, but can be applied to various loading and unloading devices.

[0084] In addition, the present invention can be modified in various ways without departing from the spirit of the present invention, and the present invention is naturally applicable to products after these modifications.

[0085] Explanation of symbols

[0086] 10: Loading and unloading device

[0087] 11: Pin

[0088] 11a: Guide

[0089] 11b: Contact part

[0090] 11c: Locking slot

[0091] 12: Loading and unloading department

[0092] 13: Operation button

[0093] 13a: Button body

[0094] 13aa: Sliding part

[0095] 13ab: Touch operation unit

[0096] 13b: Controls

[0097] 13c: Snap claw (hook)

[0098] 13d: Spring positioning recess

[0099] 13e: Guide inclined surface

[0100] 14: Pin insertion hole

[0101] 15: Housing

[0102] 15a: Action button inset space

[0103] 15aa: Sliding part storage space

[0104] 15ab: Control unit storage space

[0105] 15ac: Spring storage space

[0106] 19: Groove (groove part)

[0107] 19a: Locking stopper

[0108] 19b: Unlocking latch

[0109] 19c: Groove

[0110] 20a: Locking claw

[0111] 20b: Unlocking claw

[0112] 21: Slit

[0113] 23: Coil spring (spring mechanism)

[0114] 101: Fixed part

[0115] 102: Toilet Seat

[0116] S1: Gap

[0117] S2: Gap

[0118] A: Arrow

[0119] B: Arrow

[0120] C: Arrow

[0121] D: Surface

[0122] L: Locked position

[0123] U: Unlocked position.

Claims

1. A loading and unloading device, comprising a pin, a housing and an operating button, characterized in that: The pin has, in order from the insertion end side: a guide portion formed in a conical shape toward the insertion end; a cylindrical contact portion; and an annular locking groove formed on the outer peripheral surface of the pin, The housing has: an operation button insertion space formed in the housing along the axis of the housing from one end side to the other end side of the housing; and a pin insertion hole passing through the operation button insertion space from the outer peripheral surface of the housing, The operation button has: a button body part operable from the outside, a portion of which is slidably arranged in the operation button insertion space along the axis; as well as A pair of control members, the pair of control members are respectively fixed to the button body on the side of the operation button insertion space, and are provided with: locking claws, the locking claws are arranged opposite to each other at a spacing smaller than the outer diameter of the contact portion; and unlocking claws, the unlocking claws are arranged opposite to each other on the outside of the locking groove to maintain the outer peripheral surface of the contact portion. The operation button is configured to be able to slide between a locking position and an unlocking position, wherein the locking position is a position where the locking catch portion corresponds to the pin insertion hole, and the unlocking position is a position where the unlocking catch portion corresponds to the pin insertion hole. Furthermore, the operation button further includes a hook portion that is engaged with the operation button at the locked position when the locking hook portion moves to the locked position.

2. The loading and unloading device according to claim 1, characterized in that: The housing further has a groove portion that engages the hook portion when the operation button and the pair of control members simultaneously move to the locking position while restricting the movement of the operation button.

3. The loading and unloading device according to claim 1 or 2, characterized in that: A spring mechanism is provided between the housing and the operating button, the spring mechanism biasing the operating button to move toward the locking position side.

4. The loading and unloading device according to claim 1, characterized in that: A guiding inclined surface is provided in at least one of the pair of control members, between the locking claw portion and the unlocking claw portion. When the operating button moves from the locking position to the unlocking position, the guiding inclined surface contacts the outer peripheral surface of the contact portion, thereby causing the control member on one side to elastically deform in a direction away from the control member on the other side, thereby pushing the pair of control members apart.

5. The loading and unloading device according to claim 2, characterized in that: The grooves are a pair, which are respectively arranged at opposite positions clamping the operation button insertion space, and the hooks are arranged in a pair corresponding to the grooves.

6. The loading and unloading device according to claim 5, characterized in that: The housing is provided with slits formed from the opening of the housing toward the other end side of the housing on both left and right sides sandwiching the groove.

Images