JP5385238B2 - Joinery - Google Patents

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, configured to prevent fingers from being pinched when the opening / closing body is vigorously closed. The present invention relates to a joinery provided with a finger pinching prevention device.

  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 they are closed.

  For example, in a joinery in which an opening / closing body is slidably disposed with respect to an opening frame, there is a structure in which a stopper piece is movably disposed at a portion located on the door end side of the opening / closing body. The stopper piece has a weight at the base end portion and a magnet at the tip end portion, and is disposed on the unit body so as to be rotatable around a horizontal rotation axis provided at the central portion in the longitudinal direction. The part can appear and disappear with respect to the upper surface of the unit body. In the normal state, the base end portion of the stopper piece is positioned below by the weight, and the tip end portion of the stopper piece having a magnet is held in a state protruding from the upper surface of the unit body. On the other hand, in the opening frame of this joinery, an abutting member is disposed at a portion close to the vertical frame on the lower surface of the upper frame. The contact member is provided at a position where it comes into contact with the stopper piece before the opening / closing body is closed when the tip of the stopper piece protrudes from the upper surface of the unit body. The abutting member is provided with a repulsion magnet having the same polarity as the magnet of the stopper piece.

  In this fitting, when the opening / closing body is closed at a slow speed with respect to the opening frame, the stopper piece is rotated by the magnetic repulsive force acting between the magnet of the abutting member and the magnet of the stopper piece, and the tip portion is a unit. It is maintained in a state of retreating below the upper surface of the main body. As a result, the stopper piece and the contact member do not contact each other, and the opening / closing body can be completely closed with respect to the opening frame.

  On the other hand, when the opening / closing body is closed at a high speed, the tip of the stopper piece comes into contact with the contact member immediately before the magnetic repulsive force between the magnet of the contact member and the magnet of the stopper piece acts. become. Therefore, the opening / closing body cannot be completely closed with respect to the opening frame, and as a result, even if a hand is placed on the vertical frame, a situation in which a finger is caught between the opening / closing body can be prevented. (For example, refer to Patent Document 1).

JP 2009-203663 A

  In the finger pinching prevention device applied to this type of joinery, it is preferable that the timing when the stopper piece acts to prevent the opening / closing body from being completely closed can be adjusted. That is, in a situation where the stopper piece frequently acts, there is a risk that the opening / closing operation of the opening / closing body becomes troublesome. Therefore, it is preferable that the stopper piece can be adjusted so as to retract even when the opening / closing body is closed at a high speed. On the contrary, in a situation where the stopper piece is always retracted, it is preferable that the stopper piece can be adjusted to maintain the protruding state even when the opening / closing body is closed at a low speed.

  Also in the joinery described in Patent Document 1, it is possible to change the timing at which the stopper piece acts by exchanging the magnet with a magnet having a different magnetic force or exchanging with a weight having a different weight. However, replacement of magnets and weights involves disassembling work, and it cannot be denied that adjustment work becomes complicated. In addition, since a large number of different types of magnets and weights must be prepared in advance, this is not a realistic adjustment method. In particular, in the joinery after construction, the above-described problems become more prominent.

  An object of this invention is to provide the fitting which can adjust easily the timing which makes a stopper piece act in view of the said situation.

  In order to achieve the above object, a joinery according to the present invention is a joinery comprising an opening frame, an opening / closing body arranged to be openable / closable with respect to the opening frame, and a finger pinching prevention device. Comprises an operation unit disposed on one of the opening frame and the opening / closing body, and the other abutment portion, and the operation unit is a unit main body provided with a first magnet. When the opening / closing body is disposed so as to be able to advance and retreat with respect to the unit main body and is in the advanced state, the opening / closing body is prevented from being blocked by contacting the contact portion, and when the opening / closing body is in the retracted state, A second stopper piece that is disposed on the stopper piece and biases the stopper piece in a direction of protruding from the unit main body by a magnetic repulsive force acting between the first magnet and the stopper piece. A magnet, and the contact Is a third magnet that applies a magnetic repulsive force to the second magnet and retracts the stopper piece against the magnetic repulsive force between the first magnet and the second magnet. And when the stopper piece is in an advanced state with respect to the unit body, the magnetic repulsive force acting between the first magnet and the second magnet changes along the direction in which the magnetic repulsive force changes. A magnetic repulsive force adjusting means for movably disposing the first magnet and the second magnet is provided.

  According to the present invention, if the first magnet and the second magnet are relatively moved by the magnetic repulsion force adjusting means, the magnetic repulsion force acting between the first magnet and the second magnet, The relationship with the magnetic repulsive force acting between the second magnet and the third magnet can be changed.

  Further, according to the present invention, in the joinery described above, the magnetic repulsion force adjusting means disposes the first magnet so as to be movable with respect to the unit body, and the position of the first magnet with respect to the unit body. It is characterized by comprising a magnet position adjusting means for changing.

  According to this invention, by changing the position of the first magnet with respect to the unit body by the magnet position adjusting means, the magnetic repulsive force acting between the first magnet and the second magnet, the second magnet, It becomes possible to change the relationship with the magnetic repulsive force acting between the third magnets.

  In the fitting described above, the magnet position adjustment means may include an adjustment screw screwed into the unit body, and the first position relative to the unit body according to a screwing length of the adjustment screw. It is characterized by changing the position of the magnet.

  According to the present invention, the magnetic repulsive force acting between the first magnet and the second magnet, the second magnet, and the third magnet are changed by changing the screwing length of the adjusting screw to the unit main body. It is possible to change the relationship with the magnetic repulsive force acting between the two.

  Further, according to the present invention, in the joinery described above, a guide passage is formed in the unit main body along a direction orthogonal to the opening / closing direction of the opening / closing body, and the stopper piece is slidably arranged along the guide passage. It was set up.

  According to the present invention, it is possible to secure a large protrusion dimension of the stopper piece and to configure a compact finger pinching prevention device.

  Further, according to the present invention, in the joinery described above, the abutting portion includes an abutting block in which the second magnet is disposed, and a stopper piece in a state of being advanced from the unit body is the abutting block. In this case, the opening / closing body is blocked from being closed.

  According to this invention, it is possible to apply to a joinery in which an opening / closing body slides with respect to an opening frame.

  According to the present invention, if the first magnet and the second magnet are relatively moved by the magnetic repulsion force adjusting means, the magnetic repulsion force acting between the first magnet and the second magnet, Since the relationship with the magnetic repulsive force acting between the second magnet and the third magnet can be changed, the timing at which the stopper piece is acted can be easily adjusted.

FIG. 1 is a view showing a joinery that is Embodiment 1 of the present invention. FIG. 2 is a cross-sectional plan view of the joinery shown in FIG. FIG. 3 shows a finger pinching prevention device applied to the joinery shown in FIG. 1, and is an enlarged view of a main part in a state in which the stopper piece is retracted. FIG. 4 shows a finger pinching prevention device applied to the joinery shown in FIG. 1, and is an enlarged view of a main part in a state where a stopper piece has advanced. FIG. 5 is a cross-sectional side view showing the main part of the joinery shown in FIG. FIG. 6 is a cross-sectional front view illustrating unit body side components of the finger pinching prevention device applied to the joinery illustrated in FIG. 1. FIG. 7 is a cross-sectional plan view showing the unit main body side components of the finger pinching prevention device applied to the joinery shown in FIG. FIG. 8 is an exploded perspective view showing the unit body side components of the finger pinching prevention device applied to the joinery shown in FIG. 1. FIG. 9 is a cross-sectional view showing a contact block of the finger pinching prevention device applied to the joinery shown in FIG. FIG. 10 shows a joinery that is Embodiment 2 of the present invention, and is an enlarged view of a main part in a state in which a stopper piece of the finger pinching prevention device is retracted. FIG. 11 is an enlarged view of the main part of the joinery shown in FIG. 10 in a state where the stopper piece of the finger pinching prevention device has moved forward. 12 is a cross-sectional plan view of the joinery shown in FIG. FIG. 13 is a view showing a joinery that is Embodiment 3 of the present invention. FIG. 14 shows the joinery shown in FIG. 13, and is a cross-sectional plan view of the state where the stopper piece of the finger pinching prevention device has advanced. FIG. 15 is a view showing a joinery that is Embodiment 4 of the present invention. 16 is a cross-sectional plan view of the joinery shown in FIG. FIG. 17 shows the joinery shown in FIG. 15, and is a cross-sectional side view of the main part in a state where the stopper piece of the finger pinching prevention device has advanced. FIG. 18 is a cross-sectional view illustrating a first modification of the finger pinching prevention device. FIG. 19 is a cross-sectional view showing a second modification of the finger pinching prevention device.

  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 to 5 show a joinery that is Embodiment 1 of the present invention. The joinery illustrated here is a so-called sliding window in which two shojis (opening / closing bodies) 20 are slidably disposed with respect to the opening frame 10. The opening frame 10 has a rectangular shape configured by four-frames an upper frame 11, a lower frame 12, and a pair of vertical frames 13. The shoji 20 is composed of an upper arm 21, a lower arm 22, and a pair of longitudinal rods 23, and a face material 24 such as a glass plate is interposed between the upper arm 21, the lower arm 22 and the pair of longitudinal rods 23. It is constituted by arranging.

  In this fitting, a finger pinching prevention device 100 is provided at a portion facing the indoor side between the upper collar 21 of the shoji 20 and the upper frame 11 of the opening frame 10. Specifically, the finger pinching prevention device 100 is configured by providing the operation unit 110 on the upper collar 21 of the shoji 20 and providing the contact block 130 on the upper frame 11 of the opening frame 10.

  The operation unit 110 is attached to the finding surface located on the door-end side in the upper frame 11 of each shoji 20, and includes a unit main body 111 as shown in FIGS. The unit main body 111 is configured in a horizontally-long rectangular parallelepiped block shape, and has a guide passage 112, a storage chamber 113, and an adjustment hole 114 therein.

  The guide passage 112 is a hole that extends along the vertical direction of the unit main body 111 and has a circular cross section that opens on the upper surface of the unit main body 111. The guide passage 112 accommodates the stopper piece 116 through the collar member 115 therein. ing. The stopper piece 116 is a columnar member that is formed to fit into the guide passage 112 and the collar member 115 and is slidably disposed along the axis of the guide passage 112. A magnet (second magnet) 117 is embedded in the stopper piece 116. The magnet embedded in the stopper piece 116 (hereinafter referred to as “stopper magnet 117”) is magnetized so that both end portions along the longitudinal direction of the stopper piece 116 become magnetic poles. A stopper pin 118 is provided at the lower end portion of the stopper piece 116 so as to protrude outward in the radial direction and define the maximum protruding position of the stopper piece 116 by engaging with the slide groove 115a of the collar member 115.

  The accommodation chamber 113 is a space formed adjacent to the collar member 115 and along a direction perpendicular to the guide passage 112, and a magnet (first magnet) 119 is accommodated therein. The magnet accommodated in the accommodation chamber 113 (hereinafter referred to as “repulsion repulsion magnet 119”) has a smaller size in the longitudinal direction than the accommodation chamber 113, and is arranged to be movable along the longitudinal direction of the accommodation chamber 113. It is a thing. Although not clearly shown in the figure, the repulsive repulsion magnet 119 always has a magnetic repulsive force between the stopper piece 116 and the stopper magnet 117 regardless of the position of the stopper piece 116 in the guide passage 112. Directivity is set to the magnetic force so as to act and urge the stopper piece 116 upward with respect to the unit main body 111. The magnetic repulsive force acting between the stopper magnet 117 and the protruding repulsive magnet 119 of the stopper piece 116 (hereinafter referred to as “protruding magnetic repulsive force”) is generated between the stopper magnet 117 and the protruding repulsive magnet 119. This is in accordance with the distance between each other along the horizontal direction, and can be changed by moving the protruding repulsion magnet 119 along the storage chamber 113 and moving it close to and away from the guide passage 112.

  The adjustment hole 114 is a recess formed at a position including the axis of the storage chamber 113 on the outer surface of the unit main body 111. An adjustment screw 120 is screwed into the adjustment hole 114 and a partition wall 111 a secured between the adjustment chamber 114 and the accommodation chamber 113. The adjustment screw 120 has a head that is operated by a tool exposed to the outside through the adjustment hole 114, and a tip portion of the adjustment screw 120 that is in contact with the protruding repulsion magnet 119 accommodated in the accommodation chamber 113. It is possible to change the position of the protruding repulsion magnet 119 by changing the screwing length.

  The unit main body 111 configured as described above is fixed to the shoji 20 by fastening a mounting screw (not shown) to the upper collar 21 through a screw insertion hole 121 formed at the corner. Further, as shown in FIGS. 3 and 4, a unit cover 122 is provided on the outer surface of the unit main body 111. The unit cover 122 is formed with an insertion hole 123 through which the stopper piece 116 is inserted in a portion corresponding to the guide passage 112 and an operation hole 124 through which a tool can be inserted into a portion corresponding to the adjustment hole 114. It is. That is, the unit cover 122 covers the outer surface of the unit main body 111 including a mounting screw (not shown) after allowing the stopper piece 116 to be moved and the adjustment screw 120 to be operated from the outside. The posture in which the unit main body 111 is fixed to the upper collar 21 is a direction in which the stopper piece 116 protrudes upward on the door end side. Further, even when the stopper piece 116 is most protruded with respect to the unit main body 111, the mounting height is set so that the front end surface of the stopper piece 116 does not contact the lower surface of the upper frame 11.

  The contact block 130 is attached to the lower surface of the upper frame 11, and as shown in FIGS. 1 and 3, when the two shojis 20 are in the closed state, the contact block 130 is positioned above the operation unit 110. It is arranged away from the operating unit 110. As shown in FIG. 4, the gap along the vertical direction secured between the contact block 130 and the operation unit 110 is the side surface of the tip of the stopper piece 116 when the stopper piece 116 protrudes most from the operation unit 110. Is a distance that can contact and engage the contact block 130.

  As shown in FIGS. 3, 4, and 9, a magnet (third magnet) 131 is accommodated inside the contact block 130 at an end portion that is separated from the vertical rod 23. A magnet housed in the abutment block 130 (hereinafter referred to as “retraction repulsive magnet 131”) is placed on the stopper piece 116 when the stopper piece 116 disposed on the unit main body 111 comes close as the shoji 20 is closed. This is for applying a magnetic repulsive force between the disposed stopper magnet 117. A magnetic repulsive force (hereinafter referred to as “regressive magnetic repulsive force”) acts on the repulsive repulsive magnet 131 in the direction in which the stopper piece 116 retreats with respect to the unit main body 111 between the repellent repulsive magnet 131. Thus, the directivity is set to the magnetic force. Further, the magnetic force of the retraction repulsive magnet 131 is the retraction magnetic repulsive force that acts between the retraction repulsive magnet 131 and the stopper magnet 117 when it comes close to just before the stopper piece 116 abuts against the contact block 130. The protrusion repulsion magnet 119 is larger than the protrusion magnetic repulsion force that is applied when the protrusion repulsion magnet 119 is disposed closest to the guide passage 112, and the stopper piece 116 is immersed in the unit main body 111 against the protrusion magnetic repulsion force. It is set to a size that can be.

  In the joinery provided with the finger pinching prevention device 100 configured as described above, when the shoji 20 is in an open state with respect to the opening frame 10, the magnetic repulsive force for protrusion becomes larger than the magnetic repulsive force for retraction, As shown in FIG. 4, the stopper piece 116 is held in a state of protruding from the unit main body 111. When the shoji 20 is moved in the closing direction at a slow speed from this state, the retraction magnetic repulsive force is large when the distance between the stopper piece 116 and the contact block 130 along the horizontal direction falls below a predetermined threshold. Becomes larger than the magnetic repulsive force for protrusion, and the stopper piece 116 is immersed in the unit main body 111. As a result, as shown in FIG. 3, the shoji 20 can be completely closed with respect to the opening frame 10 without causing the stopper piece 116 and the contact block 130 to contact each other.

  The retraction magnetic repulsive force between the stopper magnet 117 of the stopper piece 116 and the retraction repulsive magnet 131 of the contact block 130 described above is independent of the speed at which the shoji 20 is closed, and the stopper piece 116 and the contact block 130. Will act when the distance between them along the horizontal direction falls below a threshold. However, when the shoji 20 is closed at a high speed with respect to the opening frame 10, as shown in FIG. 4, before the stopper piece 116 is completely immersed in the unit main body 111, A state in which the distance between them is zero, that is, the stopper piece 116 comes into contact with the contact block 130, and the obstruction of the shoji 20 is blocked from the opening frame 10. Thereafter, the action of the retraction magnetic repulsive force causes the stopper piece 116 to be completely immersed in the unit main body 111. However, unless the shoji 20 is further moved in the closing direction, the vertical frame 13 of the opening frame 10 It will be in the state by which the clearance gap was ensured between the vertical fences 23 located in the door end side of the shoji 20. FIG. Thus, for example, even if a hand is attached to the vertical frame 13 of the opening frame 10, it is possible to prevent a finger from being caught between the opening frame 10 and the shoji 20.

  In addition, in the joinery described above, when a tool is inserted from the adjustment hole 114 opened in the contact block 130 and the adjustment screw 120 is rotated in an appropriate direction, the screwing length of the adjustment screw 120 with respect to the partition wall 111a changes. The position of the protruding repulsion magnet 119 can be moved closer to and away from the guide passage 112. For this reason, it is not necessary to perform complicated work or to prepare many different types of magnets, and the timing at which the stopper piece 116 acts can be easily changed.

  For example, when the projecting repulsive magnet 119 is separated from the guide passage 112, the distance between the stopper magnet 117 and the projecting repelling magnet 119 disposed on the stopper piece 116 is increased. The magnetic repulsive force for protrusion to act is set comparatively small. As a result, the stopper piece 116 starts to move backward from a position where the contact block 130 and the stopper piece 116 are largely separated from each other, and the distance from the start of retraction to the contact of the contact block 130 and the stopper piece 116 is increased. become longer. Thereby, even when the shoji 20 is closed at a relatively high speed, the stopper piece 116 can be adjusted so as not to contact the contact block 130.

  Conversely, when the protruding repulsive magnet 119 is brought close to the guide passage 112, the distance between the stopper magnet 117 and the protruding repulsive magnet 119 disposed on the stopper piece 116 is small, so The magnetic repulsive force for protrusion that acts on is set to be relatively large. As a result, even if the contact block 130 and the stopper piece 116 are closer to each other, the stopper piece 116 is maintained in a protruding state, and the contact block 130 and the stopper piece 116 come into contact from the start of retraction. The distance to is shortened. Thereby, even when the shoji 20 is closed at a relatively slow speed, the stopper piece 116 can be adjusted so as to be brought into contact with the contact block 130.

(Embodiment 2)
10 to 12 show a joinery that is Embodiment 2 of the present invention. The joinery illustrated here is a sliding window in which two shojis (opening / closing bodies) 20 are slidably arranged with respect to the opening frame 10 as in the joinery of the first embodiment shown in FIG. Only the configuration of the finger pinching prevention device is different from the first embodiment. That is, in the fitting of the second embodiment, the finger pinching prevention device 200 is configured by providing the operation unit 210 in the vertical frame 13 of the opening frame 10 and providing the contact block 230 on the vertical rod 23 of the shoji 20. .

  The operation unit 210 is attached to the prospective surface of the vertical frame 13 in the opening frame 10 and includes a unit main body 211. The unit main body 211 is configured in a block shape of a vertically long rectangular parallelepiped, and has a guide passage 212, a storage chamber 213, and an adjustment hole 214 therein.

  The guide passage 212 extends along the vertical direction of the unit main body 211, is a hole having a circular cross section that opens on the upper surface of the unit main body 211, and accommodates the stopper piece 216 therein. The stopper piece 216 is a columnar member formed to fit in the guide passage 212 and is slidably disposed along the axis of the guide passage 212. A magnet (second magnet) 217 is embedded in the stopper piece 216. The magnet embedded in the stopper piece 216 (hereinafter referred to as “stopper magnet 217”) is magnetized so that both end portions along the longitudinal direction of the stopper piece 216 become magnetic poles. Although not explicitly shown in the drawing, a stopper pin that defines the maximum protruding position of the stopper piece 216 is provided between the lower end portion of the stopper piece 216 and the unit main body 211.

  The storage chamber 213 is a space formed at a position on the extension of the axial center below the guide passage 212, and a magnet (first magnet) 219 is stored therein. A magnet accommodated in the accommodation chamber 213 (hereinafter referred to as “projection repulsion magnet 219”) has a smaller size in the longitudinal direction than the accommodation chamber 213, and is movably disposed along the longitudinal direction of the accommodation chamber 213. It is a thing. Although not clearly shown in the figure, the magnetic repulsion force is always applied to the protruding repulsive magnet 219 between the stopper piece 216 and the stopper magnet 217 regardless of the position of the stopper piece 216 in the guide passage 212. Magnetic force is set so as to act. The magnetic repulsive force acting between the stopper magnet 217 and the protruding repulsive magnet 219 of the stopper piece 216 (hereinafter referred to as “protruding magnetic repulsive force”) is the relationship between the stopper magnet 217 and the protruding repulsive magnet 219. This corresponds to the mutual distance along the vertical direction, and can be changed by moving the protruding repulsive magnet 219 along the storage chamber 213.

  The adjustment hole 214 is a recess formed on the outer surface of the lower end of the unit body 211 on the axial center extension of the storage chamber 213. An adjustment screw 220 is screwed into a partition wall 211 a secured between the adjustment hole 214 and the accommodation chamber 213. The adjustment screw 220 has a head that is operated by a tool exposed to the outside, and a tip portion of the adjustment screw 220 is in contact with the protruding repulsion magnet 219 accommodated in the accommodation chamber 213, and the screwing length with respect to the partition wall 211a is changed. By doing so, the position of the protruding repulsion magnet 219 can be changed.

  The unit main body 211 configured as described above is fixed to the upper portion of the opening frame 10 by fastening means such as a mounting screw (not shown). A unit cover 222 is provided on the outer surface of the unit body 211. The unit cover 222 is formed with an insertion hole 223 through which the stopper piece 216 is inserted in a portion corresponding to the guide passage 212 and an operation hole 224 through which a tool can be inserted into a portion corresponding to the adjustment hole 214. It is. The posture in which the unit main body 211 is fixed to the vertical frame 13 is an orientation in which the stopper piece 216 protrudes toward the upper frame 11. Further, even when the stopper piece 216 protrudes most with respect to the unit main body 211, the mounting height is set so that the tip end surface of the stopper piece 216 does not contact the lower surface of the upper frame 11.

  The abutment block 230 is attached at a height position above the unit main body 211 on the facet of the vertical rod 23. When the two shojis 20 are closed as shown in FIG. The actuator unit 210 is spaced apart from the actuator unit 210 at a position above the actuator unit 210. As shown in FIG. 11, when the stopper piece 216 protrudes most from the operation unit 210, the gap along the vertical direction secured between the contact block 230 and the operation unit 210 is the side surface of the tip of the stopper piece 216. Is a distance that can contact and engage the contact block 230.

  Inside the contact block 230, a magnet (third magnet) 231 is accommodated at the lower end thereof. A magnet housed in the contact block 230 (hereinafter referred to as “retraction repulsive magnet 231”) is placed on the stopper piece 216 when the stopper piece 216 provided on the unit body 211 comes close to the obstruction movement of the shoji 20. A magnetic repulsive force (hereinafter referred to as “retraction magnetic repulsive force”) is applied between the disposed stopper magnet 217 and the unit main body 211 in a direction in which the stopper piece 216 is retreated. The magnitude of the retraction magnetic repulsive force is determined when the protrusion repulsion magnet 219 is disposed closest to the guide passage 212 in the storage chamber 213 when the stopper block 216 comes close to the contact block 230 just before the contact. It is set to a size that is larger than the magnetic repulsive force that acts, and that can be inserted into the unit body 211 against the magnetic repulsive force for protrusion.

  In the joinery including the finger pinching prevention device 200 configured as described above, when the shoji 20 is in an open state with respect to the opening frame 10, the magnetic repulsive force for protrusion becomes larger than the magnetic repulsive force for retraction, As shown in FIG. 11, the stopper piece 216 is held in a state of protruding from the unit main body 211. If the shoji 20 is moved in the closing direction at a slow speed from this state, the magnitude of the retraction magnetic repulsive force will eventually become greater than the magnetic repulsive force for protrusion, and the stopper piece 216 will be immersed in the unit body 211. Become. As a result, as shown in FIG. 10, the shoji 20 can be completely closed with respect to the opening frame 10 without bringing the stopper piece 216 into contact with the contact block 230.

  The retraction magnetic repulsive force between the stopper magnet 217 of the stopper piece 216 and the retraction repulsion magnet 231 of the contact block 230 described above is independent of the speed at which the shoji 20 is closed, and the stopper piece 216 and the contact block 230 Will act when the distance between them along the horizontal direction falls below a threshold. However, when the shoji 20 is closed at a high speed with respect to the opening frame 10, the stopper piece 216 comes into contact with the contact block 230 before the stopper piece 216 is completely immersed in the unit body 211 as shown in FIG. 11. It will contact | abut and obstruction | occlusion of the shoji 20 with respect to the opening frame 10 is blocked | prevented. Thereafter, the action of the retraction magnetic repulsive force causes the stopper piece 216 to be completely immersed in the unit main body 211. However, as long as the shoji 20 is not moved in the closing direction, the vertical frame 13 of the opening frame 10 It will be in the state by which the clearance gap was ensured between the vertical fences 23 located in the door end side of the shoji 20. FIG. Thus, for example, even if a hand is attached to the vertical frame 13 of the opening frame 10, it is possible to prevent a finger from being caught between the opening frame 10 and the shoji 20.

  In addition, in the joinery described above, when a tool is inserted from the adjustment hole 214 opened in the contact block 230 and the adjustment screw 220 is rotated in an appropriate direction, the screwing length of the adjustment screw 220 to the partition wall 211a changes. The position of the protruding repulsion magnet 219 can be changed. For this reason, it is not necessary to perform complicated work or to prepare many different types of magnets, and it is possible to easily change the timing at which the stopper piece 216 acts.

  For example, when the repelling repelling magnet 219 is moved downward relative to the unit main body 211, the distance between the stopper repelling magnet 217 and the repelling repelling magnet 219 disposed on the stopper piece 216 is increased. The projecting magnetic repulsive force acting between each other is set to be relatively small. As a result, the stopper piece 216 starts to move backward from a position where the contact block 230 and the stopper piece 216 are largely separated from each other, and the distance from the start of retraction to the contact block 230 and the stopper piece 216 comes into contact with each other. become longer. Thereby, even when the shoji 20 is closed at a relatively high speed, the stopper piece 216 can be adjusted so as not to contact the contact block 230.

  On the other hand, when the protruding repulsive magnet 219 is moved upward with respect to the unit main body 211, the distance between the stopper magnet 217 disposed on the stopper piece 216 and the protruding repulsive magnet 219 becomes small. Thus, the magnetic repulsive force for protrusion acting between each other is set to be relatively large. As a result, even if the contact block 230 and the stopper piece 216 are located closer to each other, the stopper piece 216 is maintained in a protruding state, and the contact block 230 and the stopper piece 216 come into contact from the start of retreat. The distance to is shortened. Thereby, even when the shoji 20 is closed at a relatively slow speed, the stopper piece 216 can be adjusted so as to be brought into contact with the contact block 230.

(Embodiment 3)
FIG.13 and FIG.14 shows the joinery which is Embodiment 3 of this invention. The joinery illustrated here supports the door (opening / closing body) 20 ′ via the hinge 30 on the vertical frame 13 of the opening frame 10, and rotates around the axial center along the vertical direction of the hinge 30. The door 20 ′ is opened and closed with respect to 10.

  In this fitting, a finger pinching prevention device 300 is provided at a portion facing the indoor side between the upper end portion located on the door tip side of the door 20 ′ and the vertical frame 13 located on the door tip side of the opening frame 10. is there. Specifically, the finger pinching prevention device 300 is configured by providing the operation unit 210 on the door 20 ′ and providing the contact block 230 on the upper end portion of the vertical frame 13.

  As the operation unit 210 and the contact block 230, those having the same configuration as that exemplified in the second embodiment are applied. The operation unit 210 is fixed to the door 20 ′ so that the stopper piece 216 protrudes from the door tip of the door 20 ′ along the horizontal direction, and the tip of the stopper piece 216 can abut and engage with the vertical frame 13 of the opening frame 10. It is. The point that the repelling magnet 219 for protrusion is provided inside the unit body 211, the point that the stopper magnet 217 is provided inside the stopper piece 216, and the point that the unit cover 222 is provided on the outer surface of the unit body 211 are Both are the same as in the second embodiment. The contact block 230 is attached to a height position equivalent to the unit main body 211 inside the vertical frame 13. The point that the repulsion repulsion magnet 231 is provided inside the contact block 230 is the same as that of the second embodiment. In the third embodiment, the same components as those in the second embodiment are denoted by the same reference numerals, and detailed descriptions thereof are omitted.

  In the joinery including the finger pinching prevention device 300 configured as described above, when the door 20 ′ is open with respect to the opening frame 10, the magnetic repulsive force for protrusion becomes larger than the magnetic repulsive force for retraction. As shown in FIG. 14, the stopper piece 216 is held in a state of protruding from the unit main body 211. If the door 20 ′ is moved in the closing direction at a slow speed from this state, the magnitude of the magnetic repulsive force for retraction will eventually become greater than the magnetic repulsive force for protrusion, and the stopper piece 216 will be immersed in the unit body 211. become. As a result, the door 20 ′ can be completely closed with respect to the opening frame 10 without bringing the stopper piece 216 into contact with the vertical frame 13 of the opening frame 10.

  The retraction magnetic repulsive force between the stopper magnet 217 of the stopper piece 216 and the retraction rebound magnet 231 of the contact block 230 described above is independent of the speed at which the door 20 ′ is closed, regardless of the speed at which the door 20 ′ is closed. It acts when the mutual distance along the horizontal direction falls below a threshold value. However, when the door 20 ′ is closed at a high speed with respect to the opening frame 10, the stopper piece 216 is attached to the opening frame 10 before the stopper piece 216 is completely immersed in the unit body 211 as shown in FIG. 14. It will contact | abut to the vertical frame 13, and obstruction | occlusion of door 20 'is blocked | prevented with respect to the opening frame 10. FIG. Thereafter, although the stopper piece 216 is completely immersed in the unit main body 211 by the action of the magnetic repulsive force for retraction, the vertical frame 13 of the opening frame 10 is used unless the door 20 'is further moved in the closing direction. And the door 20 'are in a state where a gap is secured. Thereby, even if a hand is put on the vertical frame 13 of the opening frame 10, for example, it is possible to prevent a situation where a finger is caught between the opening frame 10 and the door 20 '.

  In addition, in the joinery described above, when a tool is inserted from the adjustment hole 214 opened in the contact block 230 and the adjustment screw 220 is rotated in an appropriate direction, the screwing length of the adjustment screw 220 to the partition wall 211a changes. The position of the protruding repulsion magnet 219 can be changed. For this reason, it is not necessary to perform complicated work or to prepare many different types of magnets, and it is possible to easily change the timing at which the stopper piece 216 acts.

(Embodiment 4)
15 to 17 show a joinery that is Embodiment 4 of the present invention. As in the third embodiment, the joinery illustrated here supports the door 20 ′ via the hinge 30 on the vertical frame 13 of the opening frame 10, and rotates about the axis along the vertical direction of the hinge 30. The door 20 'is opened and closed with respect to the opening frame 10.

  In this fitting, a finger pinching prevention device 400 is provided at a portion facing the indoor side between the upper end portion of the door 20 ′ located on the door end side and the upper frame 11 of the opening frame 10. Specifically, the finger pinching prevention device 400 is configured by providing the operation unit 110 on the door 20 ′ and providing the contact block 130 on the lower surface of the upper frame 11.

  As the operation unit 110 and the abutment block 130, those having the same configuration as that illustrated in the first embodiment are applied. The operation unit 110 is fixed to the door 20 ′ so that the stopper piece 116 protrudes upward from the upper edge of the door 20 ′, and the front end of the stopper piece 116 can be brought into contact with the upper frame 11 of the opening frame 10. It is. The point that the repulsion magnet 119 for protrusion is provided inside the unit main body 111, the point that the stopper magnet 217 is provided inside the stopper piece 116, and the point that the unit cover 222 is provided on the outer surface of the unit main body 111 are: Both are the same as in the first embodiment. The contact block 130 is attached to the lower surface of the upper frame 11 with a gap secured between the contact block 130 and the upper surface of the door 20 '. The point that the repulsion repulsion magnet 231 is provided inside the contact block 130 is the same as in the first embodiment.

  In the joinery including the finger pinching prevention device 400 configured as described above, the protrusion magnetic repulsion force is larger than the retraction magnetic repulsion force when the door 20 ′ is open with respect to the opening frame 10. As shown in FIG. 17, the stopper piece 116 is held in a state of protruding from the unit main body 111. If the door 20 ′ is moved in the closing direction at a slow speed from this state, the magnitude of the magnetic repulsive force for retraction will eventually become larger than the magnetic repulsive force for protrusion, and the stopper piece 116 will be immersed in the unit body 111. become. As a result, the door 20 ′ can be completely closed with respect to the opening frame 10 without bringing the stopper piece 116 into contact with the upper frame 11 of the opening frame 10.

  The retraction magnetic repulsive force between the stopper magnet 217 of the stopper piece 116 and the retraction repulsive magnet 231 of the contact block 130 described above is independent of the speed at which the door 20 ′ is closed, regardless of the speed at which the door 20 ′ is closed. It acts when the mutual distance along the horizontal direction falls below a threshold value. However, when the door 20 ′ is closed at a high speed with respect to the opening frame 10, as shown in FIG. 17, before the stopper piece 116 is completely immersed in the unit main body 111, the stopper piece 116 is attached to the opening frame 10. The upper frame 11 is abutted, and the door 20 ′ is prevented from being blocked with respect to the opening frame 10. Thereafter, although the stopper piece 116 is completely immersed in the unit main body 111 due to the action of the magnetic repulsive force for retraction, the opening frame 10 and the door 20 ′ are not moved unless the door 20 ′ is further moved in the closing direction. A space is secured between the two. 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 door 20 '.

  In addition, in the joinery described above, when a tool is inserted from the adjustment hole 214 opened in the contact block 130 and the adjustment screw 220 is rotated in an appropriate direction, the screwing length of the adjustment screw 220 to the partition wall 211a changes. The position of the protruding repulsion magnet 119 can be changed. For this reason, it is not necessary to perform complicated work or to prepare many different types of magnets, and the timing at which the stopper piece 116 acts can be easily changed.

  In the first to fourth embodiments described above, the stoppers 116 and 216 move forward and backward so as to be substantially perpendicular to the upper surfaces and side surfaces of the unit main bodies 111 and 211. However, the present invention is not limited thereto. Is not limited to this.

  For example, in the first modification shown in FIG. 18, the guide passage 312 is formed along the direction inclined with respect to the upper surface 311a of the unit body 311 having a horizontally long rectangular parallelepiped block shape. The stopper unit 316 provided with the second magnet) 317 is slidably disposed so as to advance and retreat, thereby constituting the operation unit 310. In the first modified example, the stopper magnet 317 is not embedded in the stopper piece 316, and the tip end portion of the stopper piece 316 is configured by the stopper magnet 317. The accommodation chamber 313 and the adjustment screw 320 for accommodating the protruding repulsion magnet (first magnet) 319 are also provided in a direction inclined with respect to the upper surface 311 a of the unit body 311, similarly to the guide passage 312.

  Further, in the second modified example shown in FIG. 19, a stopper piece 416 having a stopper magnet (second magnet) 417 provided thereon is rotatably supported with respect to a unit body 411 having a horizontally long rectangular parallelepiped block shape. Thus, the operation unit 410 is configured. The accommodation chamber 413 and the adjustment screw 420 for accommodating the repulsion repulsion magnet (first magnet) 419 are provided in the lower half of the unit body 411 along the vertical direction.

  Also in these first and second modified examples, if the position of the projecting repulsive magnets 319 and 419 is changed by operating the adjusting screws 320 and 420, it acts between the stopper magnets 317 and 417. The magnitude of the magnetic repulsive force for protrusion to be changed can be changed. For this reason, it is not necessary to perform complicated work or to prepare many different types of magnets, and the timing at which the stopper pieces 316 and 416 act can be easily changed.

  In addition, it goes without saying that a finger pinching prevention device can be configured by appropriately combining the abutment block with respect to the operation unit 310 of the first modification and the operation unit 410 of the second modification. .

  In the first to fourth embodiments, the first modification, and the second modification described above, the protruding repulsion magnet is movably disposed with respect to the unit body. On the other hand, the stopper magnet may be movably disposed, or both the protruding repulsion magnet and the stopper magnet may be movably disposed.

DESCRIPTION OF SYMBOLS 10 Opening frame 20 Shoji 20 'Door 100,200,300,400 Finger pinching prevention device 110,210,310,410 Operation unit 1111, 211,311,411 Unit main body 112,212,312 416 Stopper pieces 117, 217, 317, 417 Stopper magnets 119, 219, 319, 419 Protrusion repulsion magnets 120, 220, 320, 420 Adjustment screws 130, 230 Abutment blocks 131, 231 Retraction repulsion magnets

Claims (5)

In a fitting including an opening frame, an opening / closing body arranged to be openable / closable with respect to the opening frame, and a finger pinching prevention device,
The finger pinching prevention device includes an operation unit disposed on one of the opening frame and the opening / closing body, and either one of the contact portions,
The operating unit is:
A unit body provided with a first magnet;
When the unit main body is disposed so as to be able to advance and retreat and is in an advanced state, the opening / closing body is blocked by contacting the contact portion, and when the opening / closing body is in a retracted state, the opening / closing body is blocked. A stopper piece that allows
A second magnet disposed on the stopper piece and biasing the stopper piece in a direction protruding from the unit main body by a magnetic repulsive force acting between the first magnet and the second magnet;
The abutment portion applies a magnetic repulsive force to the second magnet, and retracts the stopper piece against the magnetic repulsive force between the first magnet and the second magnet. A third magnet,
These first magnets along the direction in which the magnetic repulsive force acting between the first magnet and the second magnet changes when the stopper piece is in the advanced state with respect to the unit body. And a magnetic repelling force adjusting means for movably disposing the second magnet.   The magnetic repulsive force adjusting means includes a magnet position adjusting means for movably disposing the first magnet with respect to the unit main body and changing the position of the first magnet with respect to the unit main body. The joinery according to claim 1, wherein the joinery is characterized.   The magnet position adjusting means includes an adjusting screw screwed into the unit main body, and changes the position of the first magnet with respect to the unit main body according to the screwing length of the adjusting screw. The joinery according to claim 2.   A guide passage is formed in the unit body along a direction orthogonal to the opening / closing direction of the opening / closing body, and the stopper piece is slidably disposed along the guide passage. Joinery as described in any one of Claim 3.   The abutting portion is composed of an abutting block in which the second magnet is disposed, and the opening / closing body is closed when a stopper piece that has advanced from the unit main body abuts on the abutting block. The joinery according to any one of claims 1 to 4, wherein:

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