JP5133273B2 - Latch receiver and fitting - Google Patents

Description

  The present invention relates to a latch receiver and joinery.

  A door that is supported by a hinge so as to be openable and closable is usually provided with a latch on an outer edge surface thereof. The latch is urged in a direction that always protrudes from the outer edge surface of the door. When the door is closed, the latch abuts on a latch receiver provided on the door frame to keep the door closed. When a grip ball or lever provided on the door is operated, the latch retracts and the door can be opened in the out-of-plane direction.

  In the joinery as described above, when the latch lock is damaged, the latch cannot be retracted even if the grip ball or the lever is operated, and it is difficult to open the door. For this reason, this type of joinery is also provided with an emergency opening mechanism.

  For example, in Patent Document 1, a contact portion that contacts the latch is movably disposed in the latch receiver, and the contact portion is always positioned at a position facing the latch by the urging means. According to this fitting, when the door is closed, the latch comes into contact with the contact portion of the latch receiver, so that the door can be kept closed. On the other hand, when the latch lock is damaged, the door can be opened by operating the abutment against the urging force of the urging means so that the abutment can be retracted from the area opposite the latch. It becomes possible to make it.

JP 2007-315008 A

  By the way, in the joinery configured to move the contact portion as described above, it is preferable to arrange the lever for operating the contact portion at a position where it can be easily operated in consideration of the operability. Not too long. In particular, the position of the lever is extremely important in order to reliably open the door to children such as preschool children.

  However, if the lever, which is necessary only in an emergency, is placed at an easy-to-operate position, it may not only cause unnecessary malfunctions, but it may also cause mischief by children. Will be damaged.

  In view of the above circumstances, an object of the present invention is to provide a latch receiver and a fitting that can reliably open a door only to an emergency for a child without causing malfunction or mischief.

  In order to achieve the above object, a latch receiver according to the present invention is provided in a door frame, and a latch receiver that restricts movement of the door in an out-of-plane direction with respect to the door frame by abutment of a latch provided in the door. A base material portion held by the door frame and a contact portion that contacts the latch when the door is closed, and the contact portion is applied with an external force exceeding a preset value. In some cases, the base material portion is connected to the base material portion in a mode of being separated from the base material portion.

  Further, the latch receiver according to the present invention is the above-described latch receiver, wherein the contact portion and the base material portion are individually configured, and the contact portion and the base material portion are connected to each other by an engaging means. The connection state by the engagement means is released when an external force exceeding a preset value is applied.

  In addition, the latch receiver according to the present invention is the above-described latch receiver, in which the contact portion and the base portion are integrally formed, and a thin portion is formed between the contact portion and the base portion. The thin portion is broken when an external force exceeding a set value is applied.

  In addition, the fitting according to the present invention has a latch on the door and a latch receiver on the door frame, and the latch abuts the latch receiver when the door is closed with respect to the door frame. In the joinery that restricts the movement of the door in the out-of-plane direction with respect to the door frame, the latch receiver has a base material portion held by the door frame and the door is closed. A contact portion that contacts the latch, and the contact portion is connected to the base material portion in a manner of being separated from the base material portion when an external force exceeding a preset value is applied. Features.

  In addition, in the joinery according to the present invention, in the joinery described above, the contact portion and the base material portion are individually configured, and the contact portion and the base material portion are connected to each other by an engagement means, The connection state by the engaging means is released when an external force exceeding a set value is applied.

  Moreover, in the joinery according to the present invention, in the joinery described above, the contact portion and the base portion are integrally formed, and a thin portion is formed between the contact portion and the base portion, and is set in advance. When the external force exceeding the value is applied, the thin portion is broken.

  According to the present invention, when an external force exceeding a preset value is applied, the contact portion is separated from the base portion of the latch receiver. Therefore, there is no need to provide an operation unit such as a lever for operating from the outside, and there is no possibility of causing a malfunction or mischief during normal use. On the other hand, in the event of an emergency when the latch lock is damaged, for example, if an external force is applied to the latch receiver by hitting the door or the like, the door opening restriction state by the latch receiver will be released, The door can be reliably opened.

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

(Embodiment 1)
FIG. 1 is a perspective view of a fitting to which a latch receiver according to Embodiment 1 of the present invention is applied. The joinery illustrated here is a door provided on a wall that partitions a room in a room of a building, such as a bathroom door, and includes a door frame 10 and a door 20. The door frame 10 is configured by a four-frame framework of an upper frame member 11, a lower frame member 12, and a pair of left and right vertical frame members 13 and 14. The door 20 has a plate shape having a size capable of closing the opening of the door frame 10. This door 20 is connected between one side edge and one vertical frame member 13 of the door frame 10 by a pair of upper and lower hinges 30 and rotates about the axis of the hinge 30 along the vertical axis. Thus, the door frame 10 can be opened and closed in the out-of-plane direction.

  In this joinery, a latch 40 is provided on the other side edge of the door 20, while a latch receiver 50 is provided on the door frame 10. The latch 40 is a component of the latch lock 41 disposed inside the door 20 and is urged in a direction that always protrudes from the outer edge surface 20a of the door 20 by a spring (not shown). As shown in FIG. 5, the latch 40 is provided with a contact surface 40a and a curved guide surface 40b. The contact surface 40a extends in a manner that is perpendicular to the outer edge surface 20a of the door 20. On the other hand, the curved guide surface 40b extends in an arc shape so that the distance from the contact surface 40a gradually decreases toward the tip of the latch 40, and the vertical frame of the door frame 10 is closed when the door 20 is closed. It is formed in a portion that contacts the member 14. The latch 40 can be retracted against the urging force of a spring (not shown) when the levers 21 provided on the front and back surfaces of the door 20 are operated and when the curved guide surface 40b is pressed. .

  The latch receiver 50 is arranged on the inner edge surface 14a of the vertical frame member 14 corresponding to the latch 40 in the door frame 10, and as shown in FIGS. 51 and a contact portion 52. The base material portion 51 has a substantially U-shape in which an upper piece 51b and a lower piece 51c are provided so as to be parallel to each other from both ends of the side piece 51a. The upper piece 51b and the lower piece 51c of the base material part 51 are each provided with a screw insertion hole 51d for inserting a mounting screw (not shown). The contact portion 52 is provided so as to connect the tip surfaces of the upper piece 51b and the lower piece 51c of the base material portion 51, and the upper piece 51b, the lower piece 51c and the side pieces 51a of the base material portion 51 are connected to each other. A substantially rectangular latch receiving hole 53 is defined therebetween.

  An engaging means 60 is provided between the base material portion 51 and the contact portion 52. In the normal state, the engaging means 60 connects the base material portion 51 and the contact portion 52 to each other, while an external force exceeding a preset value is applied in a direction in which the base material portion 51 and the contact portion 52 are separated. In such a case, the connection state between the two is released. In the first embodiment, the fixed-side engagement surface 61 is provided on each of the upper piece 51b and the lower piece 51c of the base material portion 51, and the contact portion 52 corresponds to the fixed-side engagement surface 61 of the base material portion 51. The engagement means 60 is configured by providing a pair of elastic engagement pieces 63 each having a movable engagement surface 62 at a site.

  As shown in FIGS. 3 and 4, the fixed-side engaging surface 61 is configured by forming a recess in the back surface of the base material portion 51. Specifically, a groove 51e having a rectangular cross section is formed in each of the upper piece 51b and the lower piece 51c of the base material portion 51 so as to open from the front end surface to the back surface along each extending direction, and each groove 51e. The fixed-side engagement surface 61 is provided by bending the back end portions of the two in a direction facing each other.

  The elastic engagement pieces 63 are provided so as to project from the portions corresponding to the upper piece 51b and the lower piece 51c of the base member 51 in the contact portion 52 so as to be parallel to each other. A surface 62 and a sliding guide surface 63a are provided. The movable engagement surface 62 is opposed to the contact portion 52 from the distal end portion of the elastic engagement piece 63 and extends in a direction close to each other. This movable side engaging surface 62 is obtained when the elastic engaging pieces 63 are respectively disposed in the grooves 51e of the base member 51, and the contact portions 52 are brought into contact with the tip surfaces of the upper piece 51b and the lower piece 51c, respectively. The position is set so as to abut against the fixed-side engagement surface 61. The sliding guide surface 63a extends so as to gradually decrease the distance from the tip of the elastic engagement piece 63 toward the contact portion 52, and each extended end portion corresponds to a movable engagement surface. Meeting 62.

  The latch receiver 50 causes the movable engagement surface 62 of the elastic engagement piece 63 to abut against the fixed engagement surface 61 of the base member 51, and is latched between the base member 51 and the contact member 52. In a state where the accommodation hole 53 is defined, as shown in FIG. 1, the vertical hole member 14 of the door frame 10 is disposed at a portion corresponding to the latch 40 of the door 20. In this case, as shown in FIG. 1, the latch receiver 50 causes the back surface of the base portion 51 to face the vertical frame member 14. Further, as shown in FIG. 5, when the door 20 is closed, the curved guide surface 40 b of the latch 40 comes into contact with the contact portion 52, and then the contact surface 40 a of the latch 40 comes into contact with the contact portion 52 in the latch receiving hole 53. The latch receiver 50 is fixed to the vertical frame member 14 by setting the orientation of the latch receiver 50 so as to abut against the vertical frame member and fastening mounting screws (not shown) to the vertical frame members 13 and 14 through the screw insertion holes 51d. To do.

  In the joinery configured as described above, when the door 20 is closed, the contact surface 40a of the latch 40 contacts the contact portion 52 in the latch receiving hole 53 of the latch receiver 50 as shown in the upper part of FIG. Thus, the door 20 can be kept closed with respect to the door frame 10. If the lever 21 is operated from this state and the latch 40 is retracted against the biasing force of the spring (not shown) of the latch lock 41, the contact state between the contact surface 40a and the contact portion 52 is released. Therefore, the door 20 can be opened with respect to the door frame 10.

  On the other hand, in the case of an emergency in which the latch lock 41 is damaged and the latch 40 cannot be retracted even if the lever 21 is operated, the door 20 is pushed strongly toward the opening direction or strongly toward the opening direction. Just pull it. That is, when the door 20 is pushed strongly in the opening direction or pulled strongly in the opening direction, the door 20 is pulled away from the base portion 51 and the contact portion 52 of the latch receiver 50 via the contact surface 40a of the latch 40. External force will act toward When the external force increases to such an extent that the contact state between the fixed-side engagement surface 61 of the base member 51 and the movable-side engagement surface 62 of the elastic engagement piece 63 cannot be maintained, for example, when an external force exceeding 60 kgf is applied, FIG. 4 and the lower part of FIG. 5, the contact part 52 is separated from the base part 51. Therefore, for example, if the body touches the door 20, the opening restriction state of the door 20 by the latch receiver 50 can be released without any operation, and even if the child is a preschooler or the like, the latch 40 It is possible to reliably open the door 20 that is still protruding. In addition, since an external force may be simply applied through the door 20, a member for operating the contact portion 52 is unnecessary, and there is no possibility of causing a malfunction or mischief during normal use.

  After the door 20 is opened, the elastic engagement pieces 63 of the contact portions 52 are respectively inserted into the grooves 51e of the base portion 51, and the movable side engagement surface 62 is fixed to the fixed side engagement surface 61 of the base portion 51. When the door 20 is closed, the contact portion 52 can be brought into contact with the contact surface 40a of the latch 40 when the door 20 is closed, and the door 20 can be kept closed again.

  In the first embodiment described above, the engaging means 60 is constituted by the elastic engaging piece 63 having the movable side engaging surface 62 and the fixed side engaging surface 61. As long as the base members 51 are connected to each other and an external force exceeding a preset value is applied, the connection state is not necessarily limited to these configurations. In the above-described embodiment, when the engagement means 60 is configured by the elastic engagement piece 63 having the movable side engagement surface 62 and the fixed side engagement surface 61, the contact portion 52 is elastically engaged. On the other hand, the fixed engagement surface 61 is formed on the base portion 51 while the piece 63 is provided. However, the fixed engagement surface is provided on the contact portion 52 and the elastic engagement piece is provided on the base portion 51. Alternatively, both the elastic engagement piece and the fixed engagement surface may be provided on the contact part 52 and the base part 51, respectively.

  Moreover, in Embodiment 1 mentioned above, when the external force exceeds 60 kgf, the base material portion and the contact portion are separated from each other. However, this value is not necessarily limited to, for example, an external force of 50 to 70 kgf. May be set. The value of the external force is, for example, the type of synthetic resin used as a material for the latch receiver, the contact area of the fixed-side engagement surface and the movable-side engagement surface, and the fixed-side engagement surface and the movable-side engagement in the direction of the external force. It is possible to adjust to a desired value by appropriately selecting and changing conditions such as the intersection angle of the surfaces, the friction coefficient of the fixed and movable engagement surfaces, and the cross-sectional area of the elastic engagement piece. .

(Embodiment 2)
6 to 8 are perspective views showing a latch receiver 70 according to the second embodiment of the present invention. The latch receiver 70 illustrated here is similar to the latch receiver 50 of the first embodiment, and applies to a door door frame 10 provided on a wall partitioning a room in a room of a building, such as a bathroom door. is there. It should be noted that the door frame 10 is configured by four-frames of an upper frame member 11, a lower frame member 12, and a pair of left and right vertical frame members 13 and 14, and one vertical frame member 13 of the door frame 10 is vertically A latch 40 that is urged so as to always protrude to the other side edge of the door 20 is provided in that one side edge of the door 20 is rotatably connected via a pair of hinges 30. The point that the latch 40 has the contact surface 40a and the curved guide surface 40b is the same as that of the first embodiment, and the same reference numerals are given and the detailed description thereof is omitted. The same reference numerals are given to the same configurations as those in the first embodiment, and the detailed description thereof is omitted.

  The latch receiver 70 is disposed on the inner edge surface 14 a of the vertical frame member 14 corresponding to the latch 40 in the door frame 10, and has a base portion 71 and an abutment portion 72 that are integrally formed of a synthetic resin material. ing. The base material portion 71 has a substantially U-shape in which an upper piece 71b and a lower piece 71c project from both end portions of the side piece 71a so as to be parallel to each other. The upper piece 71b and the lower piece 71c of the base material portion 71 are provided with screw insertion holes 71d for inserting attachment screws (not shown), respectively. The contact portion 72 defines a substantially rectangular latch housing hole 73 between the upper piece 71b, the lower piece 71c, and the side piece 71a of the base portion 71, and the upper piece 71b of the base portion 71 and Each is connected to the lower piece 71c via a thin portion 74. The thin-walled portion 74 is configured by forming a single groove 74 a on the back surface of a portion located between the base material portion 71 and the contact portion 72. In the normal state, the thin-walled portion 74 connects the base material portion 71 and the contact portion 72 to each other, while an external force exceeding a preset value is applied in a direction to separate the base material portion 71 and the contact portion 72. If it breaks, the connection state between the two will be released. The value of the external force is set to 60 kgf, for example, as in the first embodiment.

  The latch receiver 70 is disposed in a portion corresponding to the latch 40 of the door 20 in the vertical frame member 14 of the door frame 10. In this case, the latch receiver 70 makes the back surface of the base material portion 71 face the vertical frame member 14. Further, when the door 20 is closed, the latch guide 40 b of the latch 40 abuts against the abutting portion 72, and then the latch receiving portion 40 a abuts against the abutting portion 72 in the latch receiving hole 73. The latch receiver 70 is fixed to the vertical frame member 14 by setting the direction of 70 and fastening a mounting screw (not shown) to the vertical frame member 14 through the screw insertion hole 71d.

  In the joinery configured as described above, when the door 20 is closed, the contact surface 40a of the latch 40 comes into contact with the contact portion 72 in the latch receiving hole 73 of the latch receiver 70, and the door frame 10 It becomes possible to maintain the door 20 in the closed state. If the lever 21 is operated from this state and the latch 40 is retracted against the biasing force of the spring (not shown) of the latch lock 41, the contact state between the contact surface 40a and the contact portion 72 is released. Therefore, the door 20 can be opened with respect to the door frame 10.

  On the other hand, in the case of an emergency in which the latch lock 41 is damaged and the latch 40 cannot be retracted even if the lever 21 is operated, the door 20 is pushed strongly toward the opening direction or strongly toward the opening direction. Just pull it. That is, when the door 20 is pushed strongly in the opening direction or pulled strongly in the opening direction, the door 20 is pulled away from the base portion 71 and the contact portion 72 of the latch receiver 70 via the contact surface 40a of the latch 40. External force will act toward When the external force exceeds the above-described value and the thin portion 74 is broken, the contact portion 72 is separated from the base portion 71 as shown in FIG. Therefore, for example, if the body touches the door 20, the opening restriction state of the door 20 by the latch receiver 70 can be released without any operation, and the door 20 can be securely connected even to a child such as a preschooler. Can be opened. Moreover, since it is only necessary to apply an external force through the door 20, a member for operating the contact portion 72 is unnecessary, and there is no possibility of causing a malfunction or mischief during normal use.

  In the second embodiment described above, the abutment portion 72 is configured to connect the respective front end surfaces of the upper piece 71b and the lower piece 71c of the base material portion 71, and the thin portion is formed on the same straight line. 74 is formed, however, the configuration is not necessarily limited to this configuration as long as it breaks when an external force exceeding a preset value is applied.

  Also in the second embodiment described above, when the external force exceeds 60 kgf, the base material portion and the contact portion are broken and separated, but this value is not necessarily required, for example, 50 to 70 kgf. The external force may be set. The value of the external force can be adjusted to a desired value by appropriately changing conditions such as the type of synthetic resin used as a material for the latch receiver and the thickness of the thin portion.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view showing a joinery to which a latch receiver according to a first embodiment of the present invention is applied, in a state in which the door is closed with respect to the door frame and a state in which the door is opened with respect to the door frame. It is an external appearance perspective view of the latch receiver 50 applied to the fitting shown in FIG. FIG. 3 is a rear view of the latch receiver shown in FIG. 2. FIG. 3 is an exploded perspective view of the latch receiver shown in FIG. 2. It is a top view which shows the state which the door closed in the fitting shown in FIG. 1, and the state which the contact part of the latch receiver isolate | separated from the base material part. It is an external appearance perspective view of the latch receiver which is Embodiment 2 of this invention. It is the perspective view which looked at the latch receptacle shown in FIG. 6 from the back side. It is a perspective view which shows the state which the contact part of the latch receiver shown in FIG. 6 isolate | separated from the base material part.

DESCRIPTION OF SYMBOLS 10 Door frame 20 Door 40 Latch 50 Latch receiver 51 Base part 52 Contact part 60 Engagement means 61 Fixed side engagement surface 62 Movable side engagement surface 63 Elastic engagement piece 63a Sliding guide surface 70 Latch receiver 71 Base material Part 72 Contact part 74 Thin part

Claims (6)

In the latch receiver that is provided on the door frame and regulates the movement of the door in the out-of-plane direction with respect to the door frame by contacting the latch provided on the door,
When the base part held by the door frame and the contact part that contacts the latch when the door is closed, the contact part is subjected to an external force exceeding a preset value. The latch receiver is connected to the base material part in a manner of being separated from the base material part.   The abutting portion and the base material portion are individually configured, and the abutting portion and the base material portion are connected to each other by an engaging means, and the engagement is applied when an external force exceeding a preset value is applied. 2. The latch receiver according to claim 1, wherein a connection state by the coupling means is released.   The abutting part and the base material part are integrally formed, and a thin part is formed between the abutting part and the base material part. When an external force exceeding a preset value is applied, the thin part is formed. The latch receiver according to claim 1, wherein the latch receiver is ruptured. While the latch is disposed on the door, the latch receiver is disposed on the door frame, and when the door is closed with respect to the door frame, the latch is brought into contact with the latch receiver, thereby In joinery that regulates the movement of the door in the out-of-plane direction,
The latch receiver includes a base material portion held by the door frame, and a contact portion that contacts the latch when the door is closed, and the contact portion has an external force exceeding a preset value. A joinery that is connected to the base material part in such a manner that it is separated from the base material part when is added.   The abutting portion and the base material portion are individually configured, and the abutting portion and the base material portion are connected to each other by an engaging means, and the engagement is applied when an external force exceeding a preset value is applied. The joinery according to claim 4, wherein the connected state by the joint means is released.   The abutting part and the base material part are integrally formed, and a thin part is formed between the abutting part and the base material part. When an external force exceeding a preset value is applied, the thin part is formed. The joinery according to claim 4, wherein the joinery is ruptured.

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