JP2011184961A - Fitting - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To further surely prevent a situation in which a finger is caught, even when an inertial force is changed in value in a vicinity of a threshold value. <P>SOLUTION: The fitting includes: an oscillation body 33 provided in a sliding door 20 in a state where the inclined attitude of the upper surface thereof is reversed by oscillating about an oscillation shaft 33a and the oscillation shaft 33a intersects with a centrifugal force in opening/closing of the sliding door 20; a moving body 35 which is movably provided on the upper surface of the rocking body 33, the moving body placing the oscillation body 33 into a first inclined attitude in a state where it is located on one end side of the oscillation body 33 and oscillating the oscillation body 33 to a second inclined attitude when it moves to the other end side beyond the oscillation shaft 33a by a centrifugal force in movement of the sliding door 20 in a closing direction; and a stopper member 34 which is displaced according to the inclined attitude of the oscillation body 33, the stopper member allowing closing of the sliding door 20 to an opening frame 10 when the oscillation body 33 is placed in the first inclined attitude, and blocking the closing of the sliding door 20 to the opening frame 10 when the oscillation body 33 is oscillated to the second inclined attitude. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a fitting in which an opening / closing body such as a shoji or a door can be opened / closed with respect to an opening frame, and more specifically, the invention devised not to pinch a finger when closing the opening / closing body vigorously. It is about joinery.

  In a fitting with a door that is slidable with respect to the opening frame and a door that is arranged to be rotatable around one side of the opening frame, the opening and closing bodies such as these doors and doors are vigorously moved. Various devices have been devised so as not to pinch fingers when closed. For example, in a joinery in which an opening / closing body is supported on one side of an opening frame so that the opening / closing body can be opened and closed, a stopper member is swingably disposed on the outer periphery of the opening / closing body, and the centrifugal force generated when the opening / closing body is closed vigorously The stopper member is protruded from the opening / closing body to prevent the opening / closing body from being completely closed with respect to the opening frame (hereinafter referred to as “closing of the opening / closing body”) (for example, Patent Document 1 and Patent Document 2). In addition, a mass body is movably disposed on the opening / closing body, and a wedge-shaped stopper member is disposed on the centrifugal side of the mass body so as to be able to protrude and retract, and centrifugal force is generated when the opening / closing body is closed with force. The stopper member is protruded from the opening / closing body by the pressing force of the mass body moving in (1) to prevent the opening / closing body from being blocked with respect to the opening frame (see, for example, Patent Document 4). Stopper member on the inclined surface The stopper member is protruded from the opening and closing body against the inclination by the centrifugal force when the opening and closing body is closed with force, and prevents the opening and closing body from being blocked against the opening frame (for example, Patent Document 5), a stopper member is disposed in the opening / closing body so as to be able to protrude and retract, and a spring is interposed between the stopper member and the opening / closing body so that the spring force is generated by centrifugal force when the opening / closing body is closed with force. In contrast, there is a structure in which a stopper member is protruded from the opening / closing body to prevent the opening / closing body from closing the opening frame (see, for example, Patent Document 3 and Patent Document 6).

  According to this type of joinery, since the stopper member protrudes from the opening / closing body only when the opening / closing body is closed vigorously, the operation when the opening / closing body is normally opened / closed may be hindered. In addition, there is no fear that the usability during normal times is impaired.

Japanese Utility Model Publication No. 51-16439 Japanese Utility Model Publication No. 52-19922 JP 2009-235859 A Japanese Utility Model Publication No. 4-52182 Japanese Patent No. 2558068 Japanese Patent No. 3770641

  By the way, in the joinery described above, even if the stopper member protrudes once, the stopper member moves backward into the opening / closing body if the centrifugal force subsequently falls below the threshold value. Therefore, an operation of retracting the protruding stopper member into the opening / closing body each time is unnecessary, which is preferable in terms of usability.

  However, the phenomenon that the stopper member moves in the retracting direction also occurs when the opening / closing body moves in the closing direction if the centrifugal force tends to decrease. Such backward movement of the stopper member acts to prevent the stopper member from moving in the protruding direction when the centrifugal force again exceeds the threshold value. As a result, for example, when closing the opening / closing body, once the momentum is loosened in the middle of the operation and then the momentum is applied again, the opening / closing body may be blocked immediately before the stopper member protrudes. That is, in the conventional joinery, when the centrifugal force changes by a value around the threshold value, the behavior of the stopper member may become unstable, causing a situation where a finger is caught in the opening / closing body even though the threshold value is exceeded. There is a fear.

  In addition, the phenomenon mentioned above is not restricted to the joinery which arrange | positioned the door so that rotation with respect to the opening frame was possible, but also in the joinery which arrange | positioned the sliding frame so that a sliding door could be slid, using an inertial force. If the stopper member is configured to protrude, this can occur in the same manner.

  In view of the above circumstances, an object of the present invention is to provide a joinery that can more reliably prevent a finger from being pinched even when the inertial force changes by a value around a threshold value.

  In order to achieve the above object, a joinery according to the present invention includes a swing shaft provided at a central portion in a longitudinal direction in a joinery including an opening frame and an opening / closing body arranged to be openable / closable with respect to the opening frame. The tilting posture of the upper surface is reversed by swinging around the center of the axis, and the swinging shaft is disposed on the opening / closing body in a state of intersecting with the inertial force when the opening / closing body is moved in the closing direction. An oscillating body and a movable body disposed on the upper surface of the oscillating body, and in a state where the oscillating body is disposed on one end side of the oscillating body, the oscillating body is disposed in a first inclined posture, A moving body that swings the rocking body to a second inclined position when the moving body moves to the other end side beyond the rocking shaft due to an inertial force when it is moved in the closing direction; When the oscillating body is arranged in the first inclined posture A stopper member that allows the opening and closing body to be closed with respect to the opening frame, and prevents the opening and closing body from being closed with respect to the opening frame when the swinging body swings in a second inclined posture. Features.

  According to the present invention, when the moving body once moves beyond the swing axis due to the inertial force when the opening / closing body is moved in the closing direction, the tilting posture of the swinging body is reversed, and therefore only the countering to the tilting is performed. The tilted posture will not return unless a reverse inertial force is applied. Thereby, once the tilting posture of the swing shaft is reversed, even if the inertial force in the same direction slightly changes, the state is continuously maintained.

  Further, according to the present invention, in the joinery described above, the stopper member is configured integrally with the rocking body, and when the rocking body is disposed in a first inclined posture, the stopper member is in a retracted state and the opening and closing is performed. While allowing the body to be closed, when the swinging body swings to the second inclined posture, it projects to a position where it can be engaged with the opening frame and prevents the opening / closing body from closing the opening frame. It is characterized by.

  According to this invention, the swing of the swinging body is reliably transmitted to the stopper member.

  Further, according to the present invention, in the joinery described above, the stopper member is provided on the opening / closing body side so as to be movable back and forth with respect to the opening frame, and includes a magnet in which a repulsive force acts between the opening and the swinging body. When the swinging body is arranged in the first inclined posture, the magnets are separated from each other and retreated by their own weight to allow the opening / closing body to be closed with respect to the opening frame, When the swinging body swings to the second inclined posture, the magnets come close to each other and project to a position where they can be engaged with the opening frame by the repulsive force of both of them to block the opening / closing body with respect to the opening frame. It is characterized by blocking.

  According to this invention, when an excessive force is applied to the protruding stopper member, the stopper member can be moved backward without swinging the swinging body.

  Further, according to the present invention, in the joinery described above, the stopper member is provided on the opening frame side so as to be movable back and forth with respect to the opening and closing body, and includes a magnet in which a repulsive force acts between the swinging bodies. When the oscillating body is arranged in the first inclined posture, the magnets come close to each other and retreat with respect to the opening / closing body by the repulsive force of both, and the opening / closing body with respect to the opening frame When the swinging body swings to the second inclined posture, the magnets are separated from each other, and project to a position where they can be engaged with the opening / closing body by their own weights. It is characterized by blocking the opening and closing body.

  According to the present invention, since the stopper member is disposed so as to prevent the opening / closing body from being blocked in the normal state, the swinging body does not operate even though the moving body moves beyond the swinging shaft. Even if this happens, there will be no chance of a finger being caught.

  According to the present invention, in the joinery described above, the moving body is formed in a spherical shape with a magnetic body, and the swinging body is disposed in at least one of the first inclined posture and the second inclined posture. And a magnet for applying a magnetic attractive force to the moving body.

  According to the present invention, the moving body can be stopped before the centrifugal force of the opening / closing body exceeds the threshold value, or the moving body can be stopped before the threshold value falls below the threshold value after exceeding the threshold value.

  Further, according to the present invention, in the joinery described above, the swinging body is engaged with the swinging body when the swinging body is arranged in the second inclined posture, and the return movement to the first inclined posture is restricted. The locking member which maintains the stopper member in the state protruded to the position which can be engaged with the said opening frame was provided.

  According to this invention, by operating the locking member, it is possible to prevent the opening / closing body from being moved by the stopper member.

  According to the present invention, when the moving body once moves beyond the swing axis due to the inertial force when the opening / closing body is moved in the closing direction, the tilting posture of the swinging body is reversed, so that only the countering to the tilt The tilting posture of the oscillating body does not return unless the reverse inertial force is applied. As a result, once the tilting posture of the swinging body is reversed, even if the magnitude of the inertial force in the same direction is reversed, the action state of the stopper member with respect to the opening / closing body is continuously maintained, and the finger is caught. The situation can be prevented more reliably.

1A and 1B show a main part of a joinery that is Embodiment 1 of the present invention. FIG. 1A is a partially cutaway view of a state in which a stopper member is retracted, and FIG. FIG. FIG. 2 is an overall conceptual diagram of the joinery shown in FIG. 3 is a cross-sectional plan view of the joinery shown in FIG. FIG. 4 is a cross-sectional view of a main part in a state where a stopper member protrudes from the joinery shown in FIG. 5A and 5B show a main part of a joinery that is Embodiment 2 of the present invention. FIG. 5A is a partially cutaway view of a state in which the stopper member is retracted, and FIG. FIG. 6 is an overall conceptual diagram of the joinery shown in FIG. 7 is a cross-sectional plan view of the joinery shown in FIG. FIG. 8 is a perspective view showing an appearance of the finger pinching prevention device applied to the fitting shown in FIG. FIG. 9 is a cross-sectional view of a main part in a state where a stopper member protrudes from the joinery shown in FIG. FIG. 10 is a cross-sectional view of a main part in a state where the locking member is acted on the joinery shown in FIG. 11A and 11B show a modification of the first embodiment and the second embodiment. FIG. 11A is a partially broken view showing a state in which the stopper member is retracted, and FIG. FIG. 12A and 12B show a main part of a joinery that is Embodiment 3 of the present invention, in which FIG. 12A is a partially broken view of a state in which the stopper member is retracted, and FIG. FIG. FIG. 13: shows the principal part of the fitting which is Embodiment 4 of this invention, and is a partially broken view of the state which the stopper member retracted. FIG. 14 is a partially cutaway view of the joinery shown in FIG. 13 with the stopper member protruding. FIG. 15 is an overall conceptual diagram of the joinery shown in FIG. FIG. 16 is a cross-sectional view of a main part in a state in which the stopper member is retracted in the joinery shown in FIG. FIG. 17 is a cross-sectional view of a main part in a state where the stopper member protrudes from the fitting shown in FIG.

  Hereinafter, preferred embodiments of a fitting according to the present invention will be described in detail with reference to the accompanying drawings.

(Embodiment 1)
1 (a) and 1 (b) show the main part of a joinery that is Embodiment 1 of the present invention. As shown in FIGS. 2 and 3, the joinery illustrated here includes an opening frame 10 configured by four-frames an upper frame 11, a lower frame 12, and a pair of vertical frames 13 a and 13 b, an upper frame 21, and a lower frame. Constructed by assembling the scissors 22 and the pair of vertical scissors 23a, 23b on four sides and disposing a face member 24 such as a glass plate between the upper scissors 21, the lower scissors 22 and the pair of vertical scissors 23a, 23b. The shoji 20 is constructed. The shoji 20 is configured to have a size capable of closing the opening of the opening frame 10 when it is disposed inside the opening frame 10. The shoji 20 according to the first embodiment is supported by the upper frame 11 and the lower frame 12 of the opening frame 10 via support pins 25 provided on the upper and lower end surfaces of one vertical rod 23a so that the axes are aligned with each other. The opening of the opening frame 10 can be opened and closed by rotating around the axis of the support pin 25.

  A finger pinching prevention device 30 is provided on the upper arm 21 of the shoji 20. The finger pinching prevention device 30 is an end portion on the door end side (the other vertical rod 23b side) when the shoji 20 is opened and closed, and is disposed on a finding surface located on the closing direction side. A case 31 is provided. As shown in FIGS. 1A and 1B, the main body case 31 has a hollow rectangular parallelepiped shape, and is fastened with screws 32 through screw holes 31b of attachment portions 31a provided at both ends. This is attached to the upper arm 21 of the shoji 20. Inside the main body case 31, an oscillating body 33, a stopper member 34, a moving body 35, and a pair of permanent magnets 36 and 37 are disposed.

  The rocking body 33 is a flat plate-like member having a rocking shaft 33a at the center in the longitudinal direction. The swinging body 33 is disposed so as to be swingable inside the main body case 31 with the swinging shaft 33a extending along the expected direction of the shoji 20, and as shown in FIG. As shown in FIG. 1 (b), the first inclined posture inclined so that the upper surface gradually becomes higher toward the door end side, and as shown in FIG. 1B, the upper surface is inclined toward the door tip side so that the upper surface gradually decreases. It is possible to displace the second inclined posture.

  The stopper member 34 is a portion of the swinging body 33 that is bent and extended at a substantially right angle upward from the end of the side of the shoji 20 that is close to the support pin 25 (one vertical rod 23a side that is the suspending side). The upper end portion is exposed to the outside of the main body case 31 through an opening 31 c formed on the upper surface of the main body case 31. As shown in FIG. 1A, the stopper member 34 is in a state in which the upper end portion thereof retreats downward from the upper surface of the upper collar 21 when the oscillating body 33 is disposed in the first inclined posture. On the other hand, as shown in FIG. 1B, when the rocking body 33 is arranged in the second inclined posture, the upper end portion of the swinging body 33 protrudes upward from the upper surface of the upper collar 21. In addition, the code | symbol 38 in Fig.1 (a) is an adjustment screw for adjusting the 1st inclination attitude | position (inclination angle) of the rocking | swiveling body 33. FIG.

  The moving body 35 is formed in a spherical shape with a magnetic material such as iron and has a weight capable of reversing the tilting posture when placed on the end of the rocking body 33. It is arranged so that it can roll.

  Each of the magnets 36 and 37 is a permanent magnet and is housed in a housing space provided on the lower side at each end of the main body case 31. The individual permanent magnets 36 and 37 limit the movement of the moving body 35 in the direction of separating by the magnetic attraction force when the moving body 35 is arranged close to each other.

  In the finger pinching prevention device 30 configured as described above, the moving body 35 is located at the end of the main body case 31 on the suspension base side (one vertical rod 23a side), and the swinging body 33 is shown in FIG. The state of being arranged in the first inclined posture is the normal use state. When the rocking body 33 is maintained in the first inclined posture, the upper end portion of the stopper member 34 is positioned so as to recede below the upper surface of the upper collar 21 as shown in FIG. Therefore, if the shoji 20 is slowly rotated around the support pin 25 and closed, the shoji 20 can be closed with respect to the opening frame 10.

  On the other hand, when the shoji 20 is closed vigorously, the angular velocity of the shoji 20 increases, so that the centrifugal force (inertial force) acting on the moving body 35 becomes large. When the centrifugal force exceeds a predetermined threshold, the moving body 35 moves to the door end side of the shoji 20 against the magnetic attraction force by the permanent magnet 37 and the inclination of the swinging body 33. The threshold value when the moving body 35 moves can be adjusted by appropriately setting the inclination angle of the oscillating body 33, the weight of the moving body 35, and the magnetic force of the permanent magnet 37.

  When the moving body 35 moves to the door end side of the shoji 20 and reaches the end located on the door end side of the swinging body 33 beyond the swing shaft 33a as shown in FIG. b) and FIG. 4, the stopper member 34 protrudes upward from the upper surface of the upper collar 21, so that the upper end portion of the stopper member 34 engages with the upper frame 11 to block the shoji 20 against the opening frame 10. Therefore, a gap can be secured between the opening frame 10 and the shoji 20. Thus, for example, even if a hand is attached to the opening frame 10, it is possible to prevent a situation where a finger is caught between the opening frame 10 and the shoji 20.

  Moreover, in the joinery described above, when the moving body 35 once moves beyond the swing shaft 33a to the end of the door tip side, the tilting posture of the swing body 33 is reversed. Since a magnetic attraction force acts between the permanent magnet 36 and the permanent magnet 36 disposed on the oscillating body 33, the oscillating body 33 is again shown in FIG. 1 unless the tilting of the oscillating body 33 and a reverse inertia force that resists the magnetic attraction force act. It does not return to the first inclined posture shown in (a). Therefore, the stopper member 34 formed integrally with the rocking body 33 does not retract downward from the upper surface of the upper collar 21. Thus, once the tilting posture of the swing shaft 33a is reversed by the centrifugal force, the stopper member 34 continues to prevent the shoji 20 from being blocked even if the magnitude of the centrifugal force changes. . Therefore, for example, when the shoji 20 is closed, the stopper member 34 will continue to protrude even after the momentum is loosened during the operation and then the momentum is applied again. There is no fear of being invited.

  When the finger pinching prevention device 30 is returned to the state shown in FIG. 1A, the stopper member 34 may be pushed down with a finger. That is, when the stopper member 34 is pushed downward with a finger, the rocking body 33 returns to the first inclined posture shown in FIG. 1A, and the moving body 35 rolls on the upper surface of the rocking body 33 accordingly. Thus, the main body case 31 moves to the end of the suspension base side, and can be returned to a normal use state.

  In the first embodiment described above, the permanent magnets 36 and 37 are arranged inside the main body case 31, so that the movement of the moving body 35 until the centrifugal force exceeds a predetermined threshold is stopped. However, it is possible to stop the moving body 35 before falling below the threshold after exceeding the threshold, but the permanent magnets 36 and 37 are not necessarily provided. In this case, the moving body 35 need not be made of a magnetic material. In the case of providing a permanent magnet, it is not always necessary to have two, and it is sufficient to have at least one. Moreover, although the spherical thing is applied as the moving body 35, it does not necessarily need to be spherical, For example, the moving body which slides and moves the upper surface of the rocking | swiveling body 33 is also applicable.

(Embodiment 2)
5 (a) and 5 (b) show the main part of a joinery that is Embodiment 2 of the present invention. As shown in FIGS. 6 and 7, the joinery illustrated here includes an opening frame 110 configured by quadrangling an upper frame 111, a lower frame 112 and a pair of vertical frames 113 a and 113 b, an upper frame 121, and a lower frame Constructed by assembling the scissors 122 and the pair of vertical scissors 123a, 123b on four sides and disposing a face material 124 such as a glass plate between the upper scissors 121, the lower scissors 122 and the pair of vertical scissors 123a, 123b. And a pair of shojis 120A and 120B. The pair of shojis 120 </ b> A and 120 </ b> B are arranged in parallel along the prospective direction inside the opening frame 110. One shoji is configured as a fixed shoji 120A fixed inside the opening frame 110, and is fixed at a position where the opening located in the right half of the opening frame 110 is closed in FIG. The other shoji is configured as a movable shoji 120B that is slidably supported with respect to the opening frame 110. By sliding, the opening located in the left half of the opening frame 110 in FIG. 6 can be opened and closed. is there.

  As shown in FIGS. 6 and 7, a finger pinching prevention device 130 is provided between the upper frame 111 of the opening frame 110 and the upper arm 121 of the movable shoji 120B. The finger pinching prevention device 130 includes an engagement block 131 provided on the upper frame 111 and a sensitive unit 132 provided on the upper collar 121.

  The engagement block 131 is a block-like member configured in a rectangular parallelepiped shape, and is fixedly installed on the finding surface on the side where the movable shoji 120B is disposed in the upper frame 111 of the opening frame 110. The position where the engagement block 131 is disposed in the longitudinal direction of the upper frame 111 corresponds to the opening of the opening frame 110 and is a portion close to the fixed shoddle 120A. In the following, for the sake of convenience, when specifying the end face of the engagement block 131 on the side close to the fixed shoddle 120A, the end face on the side (door side) separated from the fixed shoddle 120A will be referred to as the “blocking prevention surface 131a”. When specified, it is referred to as “locking end surface 131b”.

  The sensitive unit 132 is disposed on the face of the upper collar 121 so as to be positioned below the engagement block 131 when the movable shoji 120B closes the opening of the opening frame 110, and includes a main body case 133. . As shown in FIGS. 5 (a) and 5 (b), the main body case 133 has a hollow rectangular parallelepiped shape, and the screws 134 are fastened through the screw holes 133b of the attachment portions 133a provided at both ends. This is attached to the upper arm 121 of the movable shoji 120B. Inside the main body case 133, a swinging body 135, a stopper member 136, a moving body 137, a pair of permanent magnets 138 and 139, and a locking member 140 are disposed.

  The rocking body 135 is a flat plate-like member having a rocking shaft 135a at the center in the longitudinal direction. The swinging body 135 is swingably disposed inside the main body case 133 with the swinging shaft 135a along the prospective direction of the movable shoddle 120B. As shown in FIG. A first inclined posture in which the upper surface is inclined so as to gradually become lower as 120B is separated from the open vertical side downspout 123a (hereinafter referred to as “summit side downspout 123a” when this downspout is specified); As shown in FIG. 5 (b), it is possible to displace the second inclined posture in which the upper surface is inclined so as to gradually become higher as it is separated from the summit side spade 123a.

  The stopper member 136 is a portion that extends and bends at a substantially right angle upward from an end portion of the swinging body 135 that is separated from the calling side vertical shaft 123a, and an upper end portion of the stopper member 136 is on the upper surface of the main body case 133. It is exposed to the outside of the main body case 133 through the formed opening 133c. The upper end portion of the stopper member 136 is formed in a substantially T-shape projecting on both sides along the direction in which the movable shoji 120B is found, and the outer peripheral portion thereof is covered with a cushioning material 136a such as rubber. As shown in FIG. 5A, the stopper member 136 has an upper end below the lower surface of the engagement block 131 provided on the upper frame 111 when the swinging body 135 is disposed in the first inclined posture. It will be in a state of regressing. On the other hand, as shown in FIG. 5B, when the swinging body 135 is arranged in the second inclined posture, the upper end portion projects upward from the lower surface of the engagement block 131, and the engagement block 131. It will be in the state which can be engaged with the obstruction | occlusion prevention surface 131a. Note that reference numeral 141 in FIG. 5A denotes an adjustment screw for adjusting the first tilt posture (tilt angle) of the oscillator 135. Further, the position where the cushioning material 136a is provided is not necessarily limited to the above position, and may be appropriately changed according to the opening / closing direction of the shoji.

  The moving body 137 and the magnets 138 and 139 are the same as the moving body 35 and the magnets 36 and 37 of the first embodiment described above.

  As shown in FIG. 8, the locking member 140 is formed integrally with an operation part 140a that can be picked and slid with a finger and an action part 140b that protrudes from the back surface of the operation part 140a. The operation unit 140 a is disposed outside the main body 133, and the operation unit 140 b is inserted into a notch 133 d provided in the main body case 133. As shown in FIGS. 5A and 5B, the notch 133 d of the main body case 133 is provided at a position where the action portion 140 b of the locking member 140 is engaged with the lower surface of the rocking body 135 and the lower surface of the rocking body 135. It is for moving to a disengaged position and is formed along the horizontal direction.

  The finger pinching prevention device 130 configured as described above is located at a position where the action part 140b of the locking member 140 is disengaged, and the end of the movable body 137 on the side separated from the summoning side spade 123a in the main body case 133. The state in which the rocking body 135 is located in the first inclined posture shown in FIG. 5A is a normal use state. When the rocking body 135 is maintained in the first inclined posture, the upper end portion of the stopper member 136 is positioned lower than the lower surface of the engagement block 131. Accordingly, if the movable shoji 120B is slowly slid and closed, the movable shoji 120B can be closed with respect to the opening frame 110.

  On the other hand, when the movable shoji 120B is closed vigorously, a large acceleration is applied to the movable shoji 120B, and the inertial force acting on the moving body 137 becomes large. When this inertial force exceeds a predetermined threshold value, the moving body 137 moves in the direction approaching the summing side spade 123a of the movable shoji 120B against the magnetic attraction force by the permanent magnet 138 and the inclination of the swinging body 135. The threshold value when the moving body 137 moves can be adjusted by appropriately setting the inclination angle of the oscillating body 135, the weight of the moving body 137, and the magnetic force of the permanent magnet 138.

  When the movable body 137 moves in the direction approaching the summit side 123a of the movable shoji 120B and reaches the other end of the rocking body 135 beyond the rocking shaft 135a, as shown in FIG. 5 (b). As shown in FIGS. 5B and 9, the stopper member 136 projects upward from the lower surface of the engagement block 131, so that the cushioning material 136 a provided at the upper end portion of the stopper member 136 is the engagement block 131. By engaging with the obstruction prevention surface 131a, obstruction of the movable obstacle 120B with respect to the opening frame 110 can be obstructed, and a gap can be secured between the opening frame 110 and the movable obstruction 120B. Thus, for example, even if a hand is put on the opening frame 110, it is possible to prevent a finger from being caught between the opening frame 110 and the movable shoji 120B.

  In addition, in the joinery described above, when the moving body 137 once moves beyond the swing shaft 135a to the end portion on the opening direction side (vertical shaft 123a side), the tilting posture of the swing body 135 is reversed. Since a magnetic attraction force acts between the permanent magnet 139 disposed on the opening direction side of the case 133, the rocking body 135 is tilted and a reverse inertia force that resists the magnetic attraction force does not act. The moving body 135 does not return to the first inclined posture shown in FIG. Therefore, the stopper member 136 configured integrally with the oscillating body 135 does not retract downward from the lower surface of the engagement block 131. As a result, once the tilt posture of the swing shaft 135a is reversed by the inertial force, even if the magnitude of the inertial force in the same direction changes, the state in which the stopper member 136 prevents the movable obstacle 120B from being blocked is continued. The Rukoto. Therefore, for example, when the movable shoji 120B is closed, the stopper member 136 continues to protrude even when the momentary force is once released during the operation and then the momentum is applied again, and the finger is pinched. There is no fear of inviting you.

  When the finger pinching prevention device 130 is returned to the state shown in FIG. 5A, the stopper member 136 may be pushed downward with a finger. That is, when the stopper member 136 is pushed downward with a finger, the rocking body 135 returns to the first inclined posture shown in FIG. 5A, and the moving body 137 rolls on the upper surface of the rocking body 135 accordingly. Thus, the main body case 133 moves to the end of the main body case 133 that is separated from the summit side vertical rod 123a (door side vertical rod 123b side), and can be returned to a normal use state.

  On the other hand, in the joinery of the second embodiment, the operation unit 140a of the locking member 140 is operated in a state where the movable shoji 120B is closed, and the action unit 140b is engaged with the lower surface of the swinging body 135 arranged in the second inclined posture. When arranged at the mating position, as shown in FIG. 10, the rocking body 135 is maintained in the second inclined posture, and the stopper member 136 continuously protrudes upward from the lower surface of the engagement block 131. . Accordingly, when the movable shoji 120B is slid in the opening direction from this state, the upper end of the stopper member 136 is engaged with the lock end surface 131b of the engagement block 131, thereby preventing the movable shoji 120B from sliding. Thereby, the finger pinching prevention device 130 can be used as a simple locking device.

  In the second embodiment described above, the permanent magnets 138 and 139 are not necessarily arranged as in the first embodiment described above.

  Furthermore, in Embodiment 2 described above, the locking member 140 is provided, but the locking member 140 is not necessarily provided. In the second embodiment described above in the case where the locking member 140 is provided, the one that slides with respect to the main body case 133 is illustrated. However, as long as the rocking body 135 can be maintained in the second inclined posture. Not limited to this. For example, an operation opening is formed in the main body case, and a locking member is inserted from the operation opening so that the rocking body is maintained in the second inclined posture, or is moved forward and backward in the extending direction of the rocking shaft. It is also possible to keep the rocking body in the second inclined posture by disposing the locking member movably in the main body case and moving the locking member into the main body case.

  In the first embodiment and the second embodiment described above, the oscillators 33 and 135 and the stopper members 34 and 136 are illustrated as thin plates, but the present invention is not necessarily limited thereto. For example, in the modification shown in FIGS. 11A and 11B, the stopper member 34 ′ extending upward from one end of the oscillating body 33 ′ is used as it is for the other of the oscillating body 33 ′. By connecting to the end, a closed space is formed by the rocking body 33 'and the stopper member 34', and the moving body 35 'is accommodated therein. Further, in this modified example, a buffer member 39 'formed of rubber or the like is added to a position where the rocking body 33' contacts with the main body case 31 'when the swinging body 33' is disposed in the second inclined posture. The swing shaft 33 'has a central portion 33a' in the longitudinal direction, the moving body 35 'is formed in a spherical shape with a magnetic material such as iron, and the permanent magnet 36' on both ends of the body case 31 '. 37 ′, and an adjustment screw 38 ′ for adjusting the first tilt posture (tilt angle) of the rocking body 33 ′ is provided below the main body case 31 ′. The same as in the second embodiment. Further, the point that the stopper member 34 ′ is provided with a cushioning material 136 ′ is the same as in the second embodiment.

  In this modified example, not only the same effects as those of the first and second embodiments described above can be obtained, but also the rigidity of the rocking body 33 'and the stopper member 34' can be remarkably improved. This is extremely advantageous. In the illustrated example, it is configured as a joinery that rotates around the axis of the support pin 25 ′. However, as in the second embodiment, it is configured as a joinery in which a shoji is slidably supported with respect to the opening frame. Of course it is also possible.

(Embodiment 3)
12 (a) and 12 (b) show the main part of a joinery that is Embodiment 3 of the present invention. The joinery illustrated here is provided with a finger pinching prevention device 230 at the upper end portion of the door 220 as in the joinery shown in FIGS. 2 and 3 of the first embodiment. The finger pinching prevention device 230 is an end portion that becomes the door end side (vertical rod 223b) when the door 220 is opened and closed, and is disposed on the finding surface located on the closing direction side. I have. As shown in FIGS. 12A and 12B, the main body case 231 has a rectangular parallelepiped shape, and is fastened with screws through screw holes 231a provided at both ends so that the upper end portion of the door 220 is formed. It is attached to. A swinging body 232 and a moving body 233 are disposed inside the main body case 231.

  The rocking body 232 has a rocking shaft 232a at the center in the longitudinal direction of the rocking body 232, and the rocking shaft 232a can rock inside the main body case 231 with the door 220 in the expected direction. It is arranged. As shown in FIG. 12A, the swinging body 232 has a first inclined posture in which the upper surface is inclined gradually higher toward the door tip side of the door 220, and as shown in FIG. 12B. It is possible to displace the second inclined posture inclined so that the upper surface gradually becomes lower toward the door tip side of the door 220. In addition, the code | symbol 234 in Fig.12 (a) is an adjustment screw for adjusting the 1st inclination attitude | position (inclination angle) of the rocking | swiveling body 232. FIG.

  Protrusions 235 and 236 are provided at both ends of the rocking body 232, respectively. Each of the protrusions 235 and 236 protrudes upward, and has permanent magnets 237 and 238 inside each. The permanent magnets 237 and 238 limit the movement of the moving body 233 in the direction of separating by the magnetic attractive force when the moving body 233 described later is disposed close to the permanent magnet 237. One permanent magnet (hereinafter referred to as “combined magnet 238” when the permanent magnet is specified) arranged on the side close to the hinge 225 of the door 220 is a protruding permanent magnet 241 of the stopper member 240 described later. It also has the function of applying a repulsive force against

  The moving body 233 has the same configuration as the moving body 35 of the first embodiment described above.

  In addition, a housing groove 231b is provided in the upper part of the main body case 231, and a stopper member 240 is disposed in the housing groove 231b. The stopper member 240 is a long member having a length that covers the upper surface of the main body case 231, and a base end portion of the stopper member 240 is supported by the upper end portion of the door 220 on the door end side via the support shaft 240 a in the main body case 231. It is. The support shaft 240a for supporting the stopper member 240 is disposed in parallel with the swing shaft 232a of the swing body 232, and the stopper member 240 is stored on the upper surface of the main body case 231 as shown in FIG. As shown in FIG. 12B, the stopper member 240 can be swung between the non-engagement position and the engagement position where the upper end portion of the stopper member 240 protrudes from the upper end surface of the door 220.

  The stopper member 240 is provided with a protruding permanent magnet 241 at its tip, and a buffer material 240b at its outer periphery. When the oscillating body 232 is arranged in the first inclined posture, the protruding permanent magnet 241 is separated from the dual-purpose magnet 238 disposed on the oscillating body 232 as shown in FIG. When the rocking body 232 is disposed in the second inclined posture, the magnet 238 is arranged close to the dual-purpose magnet 238 disposed on the rocking body 232 as shown in FIG. The stopper member 240 is moved to the non-engagement position by the repulsive force of both. The cushioning material 240b is formed of an elastic member such as rubber and covers the outer surface of the stopper member 240.

  In the finger pinching prevention device 230 configured as described above, the moving body 233 is positioned at the end of the main body case 231 on the suspension base side, and the swinging body 232 is arranged in the first inclined posture shown in FIG. This state becomes the normal use state. When the rocking body 232 is maintained in the first inclined posture, the upper end portion of the stopper member 240 is stored on the upper surface of the main body case 231, and is retracted and positioned below the upper end surface of the door 220. Accordingly, if the door 220 is slowly rotated around the hinge 225 and closed, the door 220 can be closed with respect to the opening frame 210.

  On the other hand, when the door 220 is closed vigorously, the angular velocity of the door 220 increases, so that the centrifugal force (inertial force) acting on the moving body 233 also becomes large. When the centrifugal force exceeds a predetermined threshold value, the moving body 233 moves to the door end side of the door 220 against the magnetic attraction force by the permanent magnet 238 and the inclination of the swinging body 232. The threshold value when the moving body 233 moves can be adjusted by appropriately setting the inclination angle of the rocking body 232, the weight of the moving body 233, and the magnetic force of the permanent magnet 238.

  When the moving body 233 moves to the door-end side of the door 220 and reaches the end located on the door-end side of the rocking body 232 beyond the rocking shaft 232a as shown in FIG. As shown in b), since the dual-purpose magnet 238 of the swinging body 232 is close to the protruding permanent magnet 241, the stopper member 240 swings upward and protrudes upward from the upper end surface of the door 220. As a result, the upper end portion of the stopper member 240 is engaged with the upper frame 211 via the cushioning material 240 b, preventing the door 220 from being blocked with respect to the opening frame 210, and ensuring a gap between the opening frame 210 and the door 220. be able to. Accordingly, for example, even if a hand is attached to the opening frame 210, it is possible to prevent a situation where a finger is caught between the opening frame 210 and the door 220.

  Moreover, in the joinery described above, when the moving body 233 once moves beyond the swing shaft 232a to the end of the door end, the tilt posture of the swing body 232 is reversed, and further, the door end of the swing shaft 232a. Since a magnetic attraction force acts between the permanent magnet 237 arranged on the side, the swinging body 232 is again shown unless the tilting of the swinging body 232 and a reverse inertia force that resists the magnetic attraction force act. It does not return to the first inclined posture shown in FIG. Therefore, the dual-purpose magnet 238 is maintained in the state of being close to the protruding permanent magnet 241, and the stopper member 240 does not retract downward from the upper end surface of the door 220. Thereby, once the tilting posture of the swing shaft 232a is reversed by the centrifugal force, the state in which the stopper member 240 prevents the door 220 from being blocked is continued even if the magnitude of the centrifugal force is changed. . For example, when the door 220 is closed, once the momentum is loosened in the middle of the operation and then the momentum is given again, the stopper member 240 will continue to protrude, causing a situation where the fingers are pinched. There is no fear.

  Furthermore, in the joinery described above, since the rocking body 232 and the stopper member 240 are not directly connected, when an excessive force is applied to the protruding stopper member 240 from above, the rocking body 232 is inclined. Regardless, since the stopper member 240 can be moved backward, it is possible to prevent the stopper member 240 from being damaged.

  When the finger pinching prevention device 230 is returned to the state shown in FIG. 12A, the stopper member 240 may be pushed downward with a finger. That is, when the stopper member 240 is pushed downward with a finger, the projecting permanent magnet 241 is brought close to the dual-purpose magnet 238 of the swinging body 232, and the swinging body 232 is moved to the first inclination shown in FIG. Accordingly, the movable body 233 rolls on the upper surface of the rocking body 232 and moves to the end portion on the side close to the hinge 225 in the main body case 231, thereby returning to the normal use state. be able to.

  In the third embodiment described above, it is not necessary to apply a spherical one as the moving body 233 as in the first embodiment described above. Further, in the third embodiment described above, the protruding permanent magnet 241 is provided on the distal end side of the stopper member 240, but the finger pinching prevention device is configured by being provided on the proximal end side of the stopper member 240. Is also possible. Furthermore, in Embodiment 3, as in Embodiment 1, it is configured as a joinery that opens and closes the opening of the opening frame by rotating around the axis of the support pin. By doing so, it is also possible to configure as a fitting that opens and closes the opening at the opening angle.

(Embodiment 4)
FIG.13 and FIG.14 shows the principal part of the fitting which is Embodiment 4 of this invention. As shown in FIG. 15, the joinery illustrated here includes an upper frame 311, a lower frame 312, a pair of vertical frames 313 a and 313 b, an opening frame 310 configured by four-round frames, an upper frame 321, a lower frame 322, and And a door 320 configured by arranging a pair of vertical rods 323a and 323b on four sides and arranging a face member 324 between the upper rod 321 and the lower rod 322 and the pair of vertical rods 323a and 323b. It is composed. The door 320 is configured to have a size that can close the opening of the opening frame 310 when the door 320 is disposed inside the opening frame 310. The door 320 according to the fourth embodiment is supported by the vertical frame 313a of the opening frame 310 via hinges 325 provided at the upper and lower ends of one vertical rod 323a so that the axes coincide with each other. It is possible to open and close the opening of the opening frame 310 by rotating around the axis.

  As shown in FIG. 15, a finger pinching prevention device 330 is provided between the upper frame 311 of the opening frame 310 and the upper collar 321 of the door 320. The finger pinching prevention device 330 includes a stopper unit 3310 provided on the upper frame 311 and a sensitive unit 3320 provided on the upper end of the door 320.

  The stopper unit 3310 is configured such that a stopper member 3312 is swingably supported inside a stopper case 3311. The stopper case 3311 has a hollow rectangular parallelepiped shape with an open lower end surface, and is attached to the inside of the upper frame 311 with the opening directed downward as shown in FIGS. 16 and 17. The stopper member 3312 has a long stopper base 3312b having a support shaft 3312a at the center, and an engaging portion 3312c extending downward from one end of the stopper base 3312b. 3312a is arranged in the stopper case 3311 in a state along the prospective direction of the opening frame 310. As is clear from FIGS. 13 and 14, the stopper member 3312 is held in a state where the lower end portion of the engaging portion 3312 c protrudes downward from the lower surface of the upper frame 311 when in the normal state. If the portion 3312c is pushed upward, it is accommodated in the stopper case 3311 and can be retracted from the lower surface of the upper frame 311. The stopper member 3312 is provided with a retracting permanent magnet 3313 at the lower end portion of the engaging portion 3312c, and further provided with a buffer material 3313a so as to cover the lower end portion of the engaging portion 312c and the retracting permanent magnet 3313. . The cushioning material 3313a is an elastic member such as rubber, and covers the lower end portion of the engaging portion 312c and the entire outer surface of the retreating permanent magnet 3313.

  The sensitive unit 3320 is disposed on a finding surface that precedes when the door 320 is closed with respect to the opening frame 310 and passes below the stopper unit 3310, and includes a main body case 3321. As shown in FIGS. 13 and 14, the main body case 3321 has a hollow rectangular parallelepiped shape, and is attached to the upper end portion of the door 320 by fastening screws through screw holes 3321a provided at both end portions. . A swinging body 3322 and a moving body 233 are disposed inside the main body case 3321.

  The swinging body 3322 has a swinging shaft 3322a at the center in the longitudinal direction, and is disposed in the main body case 3321 so that the swinging shaft 3322a is swingable along the prospective direction of the door 320. is there. As shown in FIG. 13, the swinging body 3322 has a first inclined posture inclined so that the upper surface gradually increases toward the door end side (vertical rod 323b side) of the door 320, and as shown in FIG. It is possible to displace the second inclined posture inclined so that the upper surface gradually becomes lower toward the door tip side of the door 320. In addition, the code | symbol 3323 in FIG. 13 is an adjustment screw for adjusting the 1st inclination attitude | position (inclination angle) of the rocking | swiveling body 3322. FIG.

  Protrusions 3324 and 3325 are provided at both ends of the rocking body 3322, respectively. Each of the protrusions 3324 and 3325 protrudes upward, and includes permanent magnets 3326 and 3327 inside each of the protrusions 3324 and 3325. The permanent magnets 3326 and 3327 restrict the movement of the moving body 3328 in the direction of separation by the magnetic attractive force when the moving body 3328 to be described later is disposed in proximity. In addition, one permanent magnet disposed on the side of the door 320 that is separated from the hinge 325 (hereinafter referred to as “combined magnet 3326” when the permanent magnet is specified) has the swinging body 3322 disposed in the second inclined posture. In this case, the stopper member 3312 also has a function of acting a repulsive force in the vicinity of the retreating permanent magnet 3313.

  The moving body 3328 has the same configuration as the moving body 35 of the first embodiment described above.

  In the finger pinching prevention device 330 configured as described above, the moving body 3328 is positioned at the end of the main body case 3321 on the side close to the hinge 325, and the swinging body 3322 is in the first inclined posture shown in FIG. The arranged state becomes the normal use state. When the rocking body 3322 is maintained in the first inclined posture, as shown in FIGS. 13 and 16, the engaging portion 3312c is permanently retracted immediately before the door 320 is closed with respect to the opening frame 310. The combined magnet 3326 of the stopper member 3312 approaches the magnet 3313 and a repulsive force acts on both of them, and the stopper member 3312 swings in a direction in which the engaging portion 3312c is retracted against its own weight. Therefore, if the door 320 is slowly rotated and closed, the door 320 can be closed with respect to the opening frame 310.

  On the other hand, when the door 320 is closed vigorously, a large acceleration is applied to the door 320, and the centrifugal force (inertial force) acting on the moving body 3328 becomes large. When this centrifugal force is equal to or greater than a predetermined threshold value, the moving body 3328 moves to the door end side against the magnetic attraction force by the permanent magnet 3327 and the inclination of the swinging body 3322. The threshold value when the moving body 3328 moves can be adjusted by appropriately setting the inclination angle of the oscillating body 3322, the weight of the moving body 3328, and the magnetic force of the permanent magnet 3327.

  When the moving body 3328 moves to the door end side and reaches the other end of the swinging body 3322 beyond the swinging shaft 3322a as shown in FIG. 14, as shown in FIG. 14 and FIG. Is located below, the repulsive force cannot be applied to the retreating permanent magnet 3313 of the engaging portion 3312c even immediately before the door 320 is closed with respect to the opening frame 310, and the engaging portion 3312c The state of protruding from the lower surface of the upper frame 311 is maintained. As a result, the engaging portion 3312c of the stopper member 3312 is engaged with the door 320 via the cushioning material 3313a to prevent the door 320 from being closed with respect to the opening frame 310 and to secure a gap between the opening frame 310 and the door 320. can do. Accordingly, for example, even if a hand is attached to the opening frame 310, it is possible to prevent a situation where a finger is caught between the opening frame 310 and the door 320.

  Moreover, in the joinery described above, when the moving body 3328 is moved to the end portion on the door tip side once exceeding the swing shaft 3322a, the tilting posture of the swing body 3322 is reversed. Since a magnetic attraction force acts between the permanent magnet 3326 disposed on the rocking body 3326, the rocking body 3322 is again shown in FIG. 13 unless the tilting of the rocking body 3322 and a reverse inertia force that resists the magnetic attraction force act. The first inclined posture shown in FIG. Accordingly, the dual-purpose magnet 3326 is maintained in a state of being separated from the retreating permanent magnet 3313, and the engaging portion 3312 c of the stopper member 3312 does not retreat upward from the lower surface of the upper frame 311. Thus, once the tilting posture of the swinging shaft 3322a is reversed by the centrifugal force, the state in which the stopper member 3312 prevents the door 320 from being blocked is continued even if the magnitude of the centrifugal force changes. . For example, when the door 320 is closed, the stopper member 3312 continues to protrude even after the momentum is loosened during the operation and then the momentum is applied again, which causes a situation where the finger is pinched. There is no fear.

  In the fourth embodiment described above, it is not necessary to apply a spherical body as the moving body 3328, as in the first embodiment described above. In the above-described fourth embodiment, the engaging portion 3312c of the stopper member 3312 is projected in a normal use state, but the present invention is not limited to this. For example, by applying a magnetic attractive force between the main body case and the stopper member, the stopper member can be maintained in a retracted state in a normal use state. In this finger pinching prevention device, if a permanent magnet capable of overcoming the magnetic attractive force between the main body case and the stopper member and projecting the stopper member from the main body case is provided on the swinging body, the opening / closing body is closed vigorously. In this case, it is possible to prevent the opening / closing body from being blocked. Furthermore, in Embodiment 4, it is configured as a fitting that opens and closes the opening of the opening frame by rotating around the axis of the hinge. It can also be configured as a fitting that opens and closes.

DESCRIPTION OF SYMBOLS 10 Opening frame 20 Shoji 30 Finger pinching prevention apparatus 33 Oscillation body 33a Oscillation shaft 34 Stopper member 35 Moving body 36, 37 Permanent magnet 110 Opening frame 120B Movable sliding element 130 Finger pinching prevention apparatus 131 Engagement block 135 Oscillation body 135a Oscillation axis 136 Stopper member 137 Moving body 138, 139 Permanent magnet 140 Locking member 210 Opening frame 220 Door 230 Finger pinching prevention device 232 Oscillating body 232a Oscillating shaft 233 Moving body 237, 238 Permanent magnet 240 Stopper member 241 Protruding permanent magnet 310 Opening frame 320 Door 330 Finger pinching prevention device 3312 Stopper member 3313 Retraction permanent magnet 3322 Oscillating body 3322a Oscillating shaft 3326, 3327 Permanent magnet 3328 Moving object

Claims (6)

In a joinery comprising an opening frame and an opening / closing body arranged to be openable / closable with respect to the opening frame,
By swinging about a swing shaft provided at the center in the longitudinal direction, the tilt posture of the upper surface is reversed, and against the inertial force when the swing shaft moves the opening / closing body in the closing direction An oscillating body disposed on the opening and closing body in an intersecting state;
The movable body is movably disposed on the upper surface of the rocking body, and in the state of being disposed on one end side of the rocking body, the rocking body is disposed in a first inclined posture, while the opening / closing body is moved in the closing direction. A moving body that rocks the rocking body in a second inclined posture when moved to the other end side beyond the rocking shaft due to inertial force when moved;
When the swinging body is displaced according to the tilting posture of the swinging body and the swinging body is arranged in the first tilting posture, the opening and closing member is allowed to be closed with respect to the opening frame, while the swinging member is in the second tilting posture. And a stopper member for preventing the opening / closing body from being blocked with respect to the opening frame.   The stopper member is configured integrally with the rocking body, and when the rocking body is disposed in a first inclined posture, the stopper member enters a retreating state and allows the opening / closing body to be closed. 2. The fitting according to claim 1, wherein when the oscillating member swings to a second inclined posture, the fitting projects to a position where it can be engaged with the opening frame to prevent the opening / closing body from being blocked with respect to the opening frame. .   The stopper member is provided on the opening / closing body side so as to be able to advance and retreat with respect to the opening frame, and includes a magnet having a repulsive force acting between the stopper body and the swing body. When the magnets are arranged in a tilted position, the magnets are separated from each other and are retreated due to their own weight, allowing the opening / closing body to be closed with respect to the opening frame, while the swinging body swings to the second tilted position. In this case, the magnets are close to each other and project to a position where they can be engaged with the opening frame by the repulsive force of both to prevent the opening / closing body from being blocked from the opening frame. The joinery described.   The stopper member is provided on the opening frame side so as to be capable of moving back and forth with respect to the opening / closing body, and includes a magnet in which a repulsive force acts between the rocking bodies. When the magnets are arranged in an inclined posture, the magnets come close to each other, and the repulsive force of both causes the magnets to retreat with respect to the opening / closing body, thereby allowing the opening / closing body to be closed with respect to the opening frame. The magnets are separated from each other when swung in a second inclined posture, and project to a position where they can be engaged with the opening / closing body by their own weight to prevent the opening / closing body from being blocked from the opening frame. The joinery according to claim 1. The moving body is formed in a spherical shape by a magnetic body,
The joinery according to claim 1, further comprising a magnet that applies a magnetic attractive force to the movable body when the swinging body is disposed in at least one of a first inclined posture and a second inclined posture.   When the rocking body is disposed in the second inclined posture, the stopper member can be engaged with the opening frame by engaging the rocking body and restricting the return movement to the first inclined posture. The joinery according to claim 2 or 3, further comprising a locking member that maintains a protruding state to a certain position.

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