JP2014020055A - Push-pull lock - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a push-pull lock which can also be easily installed in a glass door with thin stiles and rails and which has a good appearance.SOLUTION: A push-pull lock 1 includes: a fixing member 13 which is provided on a wall surface 3 of a door 2; a handle 15 which is rotatably supported by the fixing member 13; a latch lever 16 which is rotated in association with rotation of the handle 15; a latch bolt which is provided in such a manner as to be capable of protruding/receding with respect to a butt end of the door 2; a stopper mechanism which is arranged in the door 2 and which switches between the state of restricting an operation for making the latch bolt recede from the butt end and the state of enabling the latch bolt to recede from it, in association with rotation of the latch lever 16; and a lock case 75 which is arranged in the door 2 to house the stopper mechanism. A reinforcing member 14 is fixed to the fixing member 13. In the lock case 75, a fitting hole 80 is provided in a side surface 105 facing the backside 104 of the wall surface 3. The reinforcing member 14 is fitted into the fitting hole 80.

Description

  The present invention relates to a push-pull lock used for a door of a building such as an apartment or a hotel.

  2. Description of the Related Art Conventionally, a door of a building such as a condominium or a hotel has a push-pull lock provided with a fixing member provided on each of the wall surfaces inside and outside the door, and a pair of handles rotatably supported by each fixing member. Commonly used.

  Such a push-pull lock is provided with a latch bolt that can be moved back and forth with respect to the door mouth. When the handle is not pressed or pulled, the latch bolt is prevented from retracting from the door mouth. Thus, the closed state of the door is maintained. On the other hand, when the handle is pressed or pulled, the door can be opened by allowing the latch bolt to be retracted from the mouth of the door (see Patent Document 1).

JP 2004-218191 A

  In such a push-pull lock, a large load is applied to the fixing member when the handle is pressed or pulled. In order to prevent the position of the fixing member from shifting even when such a large load is repeatedly applied, it is necessary to enlarge the fixing member to some extent. However, when the size of the fixing member is increased, for example, when a push-pull lock is to be installed on a thin glass door, the fixing member is too large for the heel so that the fixing member cannot be fixed to the heel. There is a risk of hindering the installation of the pull lock. Moreover, when a fixing member enlarges as mentioned above, the appearance of a door will worsen.

  In view of the above circumstances, an object of the present invention is to provide a push-pull lock that can be easily installed on a thin glass door and has a good appearance.

  A push-pull lock according to the present invention includes a fixing member provided on a wall surface of a door, a handle rotatably supported by the fixing member, a latch lever that rotates as the handle rotates, and a doorhole of the door. A latch bolt provided so as to be capable of advancing and retreating, a stopper mechanism that is disposed in the door, and switches between a retraction restricted state and a retreatable state of the latch bolt from the mouth as the latch lever rotates, and the interior of the door And a locking case that accommodates the stopper mechanism, a reinforcing member is fixed to the fixing member, and a fitting hole is provided in a side surface of the locking case that faces the back surface of the wall surface. The reinforcing member is fitted in the fitting hole.

  By adopting such a configuration, it is possible to distribute the load applied to the fixing member to the lock case when the handle is pressed or pulled, and the load applied to the fixing member can be reduced. Therefore, it is possible to reduce the size of the fixing member while preventing the displacement of the fixing member. Accordingly, the fixing member can be easily fixed to a thin wall of the glass door, and the push-pull lock can be used. Can improve the appearance.

  In the push-pull lock according to the present invention, the lock case is provided with another fitting hole on the side surface opposite to the side surface, and the reinforcing member penetrates the internal space of the lock case, and You may fit in another fitting hole.

  By adopting such a configuration, it is possible to more efficiently disperse the load applied to the fixing member to the lock case, and it is possible to more effectively prevent the displacement of the fixing member. Accordingly, the fixing member can be further reduced in size.

  In the push-pull lock according to the present invention, the fixing member includes a pedestal fixed to the wall surface, and an arm case fixed to the pedestal and accommodating a part of the handle, wherein the reinforcing member is A fixing portion that is fixed to the arm case, and a pair of fitting portions that extend from both ends of the fixing portion and fit into the pair of fitting holes provided in the side surface of the lock case. May be.

  By adopting such a configuration, a push-pull lock that can disperse the load applied to the fixing member in the lock case can be realized with a simple configuration.

  According to the present invention, it is possible to provide a push-pull lock that can be easily installed on a thin glass door and has a good appearance.

It is a perspective view which shows the door in which the push pull lock which concerns on one Embodiment of this invention was installed. It is a perspective view which shows the door which concerns on one Embodiment of this invention. It is a sectional side view showing the door in which the push pull lock concerning one embodiment of the present invention was installed. In the push-pull lock according to one embodiment of the present invention, (a) is a front view showing an outdoor pedestal, (b) is a rear view showing the outdoor pedestal, and (c) is an A of (a). It is -A sectional drawing. In the push-pull lock according to one embodiment of the present invention, (a) is a perspective view showing an outdoor arm case, and (b) is a front view showing the outdoor arm case. In the push-pull lock according to the embodiment of the present invention, (a) is a perspective view showing a reinforcing member, and (b) is a rear view showing the reinforcing member. In the push pull lock concerning one embodiment of the present invention, it is a perspective view showing a grip of an outdoor handle. In the push-pull lock according to one embodiment of the present invention, it is a perspective view showing a grip arm of an outdoor handle. It is a top view which shows the door in which the push pull lock which concerns on one Embodiment of this invention was installed. In the push-pull lock according to one embodiment of the present invention, (a) is a front view showing an indoor pedestal, (b) is a side view showing the indoor pedestal, and (c) shows an indoor pedestal. It is a rear view. In the push-pull lock according to the embodiment of the present invention, (a) is a perspective view showing an attachment stay, and (b) is a plan view showing the attachment stay. In the push-pull lock according to one embodiment of the present invention, (a) is a side sectional view showing a retracted restricted state of the latch bolt, and (b) is a side sectional view showing a retractable state of the latch bolt. In the push-pull lock according to one embodiment of the present invention, (a) is a side view showing a case body, and (b) is a side view showing a case lid.

  Hereinafter, based on FIGS. 1-13, the push-pull lock 1 which concerns on one Embodiment of this invention is demonstrated. As shown in FIG. 1, the push-pull lock 1 is installed on a door 2 (only a part is shown in FIGS. 1 to 3). First, before explaining the push-pull lock 1 in detail, the structure of the door 2 will be briefly explained.

  A housing space 5 is formed in the door 2 between the outer wall surface 3 and the inner wall surface 4. As shown in FIG. 2, a pair of upper and lower reinforcing member through holes 6 having a horizontally long rectangular shape are formed in the approximate center of the outer wall surface 3 of the door 2. A horizontally elongated rectangular latch lever through hole 7 is formed above the upper reinforcing member through hole 6 and below the lower reinforcing member through hole 6. A circular mounting bar through hole 8 that is continuous with each latch lever through hole 7 is formed above the upper latch lever through hole 7 and below the lower latch lever through hole 7. A horizontally elongated engagement hole 10 is formed above the upper mounting bar through hole 8 and below the lower mounting bar through hole 8. The reinforcing member through hole 6, the latch lever through hole 7, the mounting bar through hole 8, and the engagement hole 10 are similarly provided on the inner wall surface 4 of the door 2. An opening 12 is provided in the mouth 11 of the door 2.

  Next, the member provided in the outdoor side (left side in FIG. 3) of the door 2 among the push pull locks 1 is demonstrated. For convenience of explanation, the left side in FIG. 3 is the front side (front side) of the member provided outside the door 2 and the right side in FIG. 3 is the rear side of the member provided outside the door 2 ( Back side).

  As shown in FIG. 3, on the outdoor side of the door 2, an outdoor fixing member 13 provided on the outer wall surface 3 of the door 2, a reinforcing member 14 fixed to the center in the vertical direction of the outdoor fixing member 13, An outdoor handle 15 that is rotatably supported by the outdoor fixing member 13 and an outdoor latch lever 16 that is provided on the rear upper side of the outdoor handle 15 are provided. Hereinafter, these will be described in order.

  First, the outdoor side fixing member 13 will be described. The outdoor side fixing member 13 includes an outdoor side pedestal 17 that is fixed to the outer wall surface 3 of the door 2, and an outdoor side arm case 18 that is fixed to the center of the outdoor side pedestal 17 in the vertical direction.

  As shown in FIG. 4, a communication hole 20 is provided in the horizontal direction at the center of the outdoor base 17 in the vertical direction. On the front surface of the outdoor pedestal 17, a square tube-shaped mounting tube portion 21 projects from the outer periphery of the communication hole 20 toward the front. Hereinafter, the internal space of the mounting cylinder portion 21 will be described as a part of the communication hole 20. A mounting recess 22 is provided on the right side of the mounting cylinder 21. On the rear surface of the outdoor pedestal 17, a pair of upper and lower pedestal side fixing holes 23 are provided in the horizontal direction on the left and right sides of the communication hole 20.

  The outdoor pedestal 17 is provided with pedestal side mounting holes 24 in the horizontal direction above and below the communication hole 20. As shown in FIG. 3, the outdoor end of the mounting bar 25 is screwed into each pedestal side mounting hole 24. Each mounting bar 25 passes through each mounting bar through hole 8 provided on the outer wall surface 3 of the door 2. A female screw portion 26 is provided at the indoor side end of each mounting bar 25.

  As shown in FIG. 3, the outdoor arm case 18 is accommodated in the communication hole 20 of the outdoor base 17. As shown in FIG. 5, the outdoor arm case 18 includes a connecting plate 27 extending in the vertical direction, and an upper and lower support plate 28 bent at a substantially right angle from the upper and lower ends of the connecting plate 27 toward the front. It is almost U-shaped.

  At the four corners of the connecting plate 27, arm case side fixing holes 29 are formed in the horizontal direction. A fixing bolt (not shown) penetrating each arm case side fixing hole 29 is inserted into each base side fixing hole 23 of the outdoor side pedestal 17 so that the outdoor side arm case 18 is fixed to the outdoor side pedestal 17. Has been. A pair of left and right arm case side fastening holes 30 are formed in the horizontal direction in the center of the connecting plate 27 in the vertical direction. A circular arm case side shaft hole 31 is formed in the vertical direction at the base end portion (rear end portion) of the vertical support plate 28. A rotation restricting hole 32 that is long in the left-right direction is formed in the top-bottom direction at the front end (front end) of the vertical support plate 28.

  Next, the reinforcing member 14 will be described. As shown in FIG. 6, the reinforcing member 14 includes a fixing portion 33 extending in the vertical direction and a pair of fitting portions 34 extending rearward from both upper and lower ends of the fixing portion 33. It has a letter shape.

  A pair of left and right reinforcing member side fastening holes 35 are formed in the fixing portion 33 in the horizontal direction. And the fastening bolt 33 (not shown) which penetrates each reinforcement member side fastening hole 35 is inserted in each arm case side fastening hole 30 of the outdoor side arm case 18, and the fixing | fixed part 33 of the reinforcement member 14 is the outdoor side. It is fixed to the connecting plate 27 of the arm case 18.

  On the proximal end side (front end side) of each fitting portion 34, a reduced width portion 36 that is reduced in a taper shape is provided. For this reason, the front end portion (rear end portion) of the fitting portion 34 has a lateral width smaller than the base end portion (front end portion) of the fitting portion 34. As shown in FIG. 3, each fitting portion 34 passes through the reinforcing member through hole 6 provided in the outer wall surface 3 of the door 2.

  Next, the outdoor handle 15 will be described. As shown in FIG. 3, the outdoor handle 15 includes a grip 37 and a grip arm 38 fixed to the grip 37.

  As shown in FIG. 7, the grip 37 includes a grip shaft portion 40 and an operation portion 41 that is gently bent from the front end of the grip shaft portion 40 toward the right side (left side in the drawing). It is substantially L-shaped. An insertion recess 39 is provided at the base end portion (rear end portion) of the grip shaft portion 40. A grip side connection hole 42 is provided in the horizontal direction on the upper front part and the rear lower part of the inner surface of the grip shaft part 40.

  As shown in FIG. 8, grip arm side connection holes 43 are provided in the left-right direction at the upper front portion and the rear lower portion of the grip arm 38. Then, in a state where the front portion of the grip arm 38 is inserted into the insertion recess 39 of the grip 37, a connection bolt (not shown) that penetrates each grip side connection hole 42 of the grip 37 is inserted into each grip arm side connection hole 43. By inserting, the grip 37 and the grip arm 38 are fixed, and the outdoor handle 15 is integrated. As shown in FIG. 3, a portion from the front part to the rear end part of the grip arm 38 is accommodated in the outdoor arm case 18.

  As shown in FIG. 8, a substantially L-shaped spring recess 44 is provided on the proximal end side of the grip arm 38. A grip arm side shaft hole 45 is formed in the vertical direction at the base end of the grip arm 38 above and below the spring recess 44. As shown in FIG. 3, a lever shaft 46 passes through each grip arm side shaft hole 45 and each arm case side shaft hole 31 of the outdoor arm case 18. As a result, the outdoor handle 15 is supported by the outdoor fixing member 13 in a state of being rotatable around the lever shaft 46. Hereinafter, the position indicated by the solid line in FIG. 9 is referred to as the non-operation position of the outdoor handle 15, and the position indicated by the two-dot chain line in FIG. 9 (position rotated forward from the non-operation position) is the operation position of the outdoor handle 15. Called.

  As shown in FIG. 8, a grip arm side through-hole 47 is formed vertically in the center of the grip arm 38 in the front-rear direction and above and below the spring recess 44. As shown in FIG. 3, a rotation restricting shaft 48 passes through each grip arm side through hole 47 and the rotation restricting hole 32 of the outdoor arm case 18. Thereby, the rotation range of the outdoor handle 15 is restricted between the non-operation position and the operation position. The spring recess 44 of the grip arm 38 accommodates a torsion coil spring 50 wound around the outer periphery of the lever shaft 46. The torsion coil spring 50 biases the outdoor handle 15 to the non-operation position (see FIG. 9).

  Next, the outdoor latch lever 16 will be described. As shown in FIG. 3, the outdoor latch lever 16 has a flat plate shape that is long in the front-rear direction. The portion of the outdoor latch lever 16 that extends from the substantially central portion in the front-rear direction to the front end is sandwiched from above and below by the upper support plate 28 of the outdoor arm case 18 and the top surface of the communication hole 20 of the outdoor pedestal 17. The rear portion of the outdoor latch lever 16 passes through the upper latch lever through hole 7 provided in the outer wall surface 3 of the door 2.

  A latch lever side shaft hole 51 is vertically drilled at a substantially central portion in the front-rear direction of the outdoor latch lever 16, and a lever shaft 46 penetrates the latch lever side shaft hole 51. A latch lever side through hole 52 is vertically drilled in the front end portion (front end portion) of the outdoor latch lever 16, and a rotation regulating shaft 48 passes through the latch lever side through hole 52. With this configuration, the outdoor latch lever 16 rotates integrally with the outdoor handle 15 as the outdoor handle 15 rotates.

  Next, the member provided in the indoor side (right side in FIG. 3) of the door 2 among the push pull locks 1 is demonstrated. For convenience of explanation, the right side in FIG. 3 is the front side (front side) of the member provided on the indoor side of the door 2, and the left side in FIG. 3 is the rear side of the member provided on the indoor side of the door 2 ( Back side).

  As shown in FIG. 3, on the indoor side of the door 2, an indoor side fixing member 53 provided on the inner wall surface 4 of the door 2, an attachment stay 54 fixed to the rear end of the indoor side fixing member 53, An indoor handle 55 that is rotatably supported by the inner fixing member 53 and an indoor latch lever 56 provided below the rear portion of the indoor handle 55 are provided.

  Since the configuration of the indoor handle 55 is the same as that of the outdoor handle 15, the same reference numerals as those of the outdoor handle 15 are assigned to the components of the indoor handle 55 in the drawing, and the description thereof is omitted. To do. For the indoor handle 55, the position indicated by a solid line in FIG. 9 is referred to as a non-operation position, and the position indicated by a two-dot chain line in FIG. 9 (a position rotated rearward from the non-operation position) is referred to as an operation position. The indoor handle 55 is biased to a non-operation position by a torsion coil spring 50 on the indoor side. Since the configuration of the indoor latch lever 56 is the same as that of the outdoor latch lever 16, the same reference numerals as those of the outdoor latch lever 16 are assigned to the components of the indoor latch lever 56 in the drawing. The description is omitted. Hereinafter, the indoor side fixing member 53 and the mounting stay 54 will be described in order.

  First, the indoor side fixing member 53 will be described. The indoor side fixing member 53 includes an indoor side pedestal 57 fixed to the inner wall surface 4 of the door 2 and an indoor side arm case 58 fixed to the center of the indoor side pedestal 57 in the vertical direction. Since the configuration of the indoor arm case 58 is the same as that of the outdoor arm case 18, the same numbers as those of the outdoor arm case 18 are given to the respective portions of the indoor arm case 58 in the drawings. Is omitted.

  As shown in FIG. 10, a communication hole 60 is formed in the horizontal direction at the center in the vertical direction of the indoor side pedestal 57. On the front surface of the indoor pedestal 57, a mounting tube portion 61 having a rectangular tube shape projects from the outer periphery of the communication hole 60 toward the front. Hereinafter, the internal space of the mounting cylinder portion 61 will be described as a part of the communication hole 60. A mounting recess 62 is provided on the right side of the mounting cylinder 61. On the rear surface of the indoor side pedestal 57, a pair of upper and lower pedestal side fixing holes 63 are provided in the horizontal direction on both the left and right sides of the communication hole 60. A pair of upper and lower pedestal side mounting holes 64 are provided in the horizontal direction on both left and right side surfaces of the indoor side pedestal 57.

  Next, the mounting stay 54 will be described. In FIG. 11, since the mounting stay 54 is viewed from the rear side, the left-right relationship on the drawing and the actual left-right relationship are reversed. As shown in FIG. 11, the mounting stay 54 includes a connection portion 65 and a pair of mounting portions 66 extending from the left and right side portions of the connection portion 65 to the front side (side away from the inner wall surface 4). It is U-shaped.

  A horizontally elongated latch lever insertion hole 70 is formed in the upper and lower portions of the connecting portion 65 in the horizontal direction. The indoor latch lever 56 is inserted through the lower latch lever insertion hole 70 (see FIG. 3).

  As shown in FIG. 11, mounting stay side mounting holes 71 are formed in the horizontal direction above the upper latch lever insertion hole 70 and below the lower latch lever insertion hole 70. As shown in FIG. 3, a mounting bolt 69 is inserted into the mounting stay side mounting hole 71, and this mounting bolt 69 is screwed into a female screw portion 26 provided at the indoor side end of the mounting bar 25. The indoor side end of the mounting bar 25 is attached to the connecting portion 65. Thereby, each member on the indoor side and each member on the outdoor side are attached to the door 2 so as to sandwich the door 2. The attachment bolt 69 constitutes an attachment member 59 that penetrates the door 2 together with the attachment bar 25. In other words, the attachment member 59 penetrating the door 2 is configured by the attachment bar 25 and the attachment bolt 69.

  As shown in FIG. 11, engagement protrusions 72 project from the both ends in the longitudinal direction (upper and lower ends) of the connection portion 65 toward the rear. On the front end side of the right end portion (left end portion in the drawing) of each engagement protrusion 72, a protrusion 73 is provided toward the right side (left side in the drawing). A cutout portion 74 is provided on the front end side of the left end portion (right end portion in the drawing) of each engagement protrusion 72 so as to be inclined rearward on the right side (left side in the drawing). As shown in FIG. 3, each engagement protrusion 72 is engaged with an engagement hole 10 provided in the inner wall surface 4 of the door 2.

  As shown in FIG. 11, a pair of upper and lower attachment stay side mounting holes 67 are formed in the mounting portion 66 in the horizontal direction. A mounting bolt (not shown) penetrating each mounting stay side mounting hole 67 is inserted into each base side mounting hole 64 of the indoor side pedestal 57, so that the mounting stay 54 is fixed to the indoor side pedestal 57. Yes. A vertically long rectangular groove 68 is provided in the center of the mounting portion 66 in the vertical direction.

  Next, members housed in the door 2 of the push-pull lock 1 will be described. For convenience of explanation, the left side in FIG. 12 is the front side (front side) of the member housed in the door 2, and the right side in FIG. 12 is the rear side (back side) of the member housed in the door 2. ). In FIG. 2, since the inside of the door 2 is viewed from the rear side, the left-right relationship on the drawing and the actual left-right relationship are reversed.

  As shown in FIG. 12, inside the door 2, a lock case 75 accommodated in the accommodation space 5 along the mouth 11 of the door 2, a stopper mechanism 76 accommodated in the lock case 75, and a lock A latch bolt 77 that protrudes from the front end of the case 75 to the front of the door 11 of the door 2 is provided. Hereinafter, these will be described in order.

  First, the lock case 75 will be described. As shown in FIG. 13, the lock case 75 includes a case body 78 whose right surface is opened, and a case lid 79 that is joined to the case body 78 so as to cover the opening of the case body 78.

  In the rear portion of the case lid 79, a horizontally long fitting hole 80 is formed in a pair in the horizontal direction. As shown in FIG. 3, each fitting hole 80 is provided on the side surface 105 of the lock case 75 facing the back surface 104 of the outer wall surface 3 of the door 2. Each fitting portion 34 of the reinforcing member 14 is fitted in each fitting hole 80.

  As shown in FIG. 13, another pair of horizontally-long rectangular fitting holes 81 are formed in the rear portion of the case body 78 in a horizontal direction. As shown in FIG. 3, each other fitting hole 81 has a side surface 106 (on the inner wall surface 4 of the door 2) opposite to the side surface 105 facing the back surface 104 of the outer wall surface 3 of the door 2 in the lock case 75. A side surface facing the back surface 107). Each fitting portion 34 of the reinforcing member 14 is fitted in each other fitting hole 81. As is clear from this, each fitting portion 34 of the reinforcing member 14 passes through the internal space of the lock case 75.

  As shown in FIG. 13, a horizontally elongated latch lever insertion hole 82 is provided above the fitting hole 80 on the upper side of the case lid 79 and below the fitting hole 80 on the lower side. As shown in FIG. 3, the outdoor latch lever 16 passes through the latch lever insertion hole 82 on the upper side of the case lid 79. As shown in FIG. 13, a horizontally-long rectangular latch lever insertion hole 82 is provided above the other fitting hole 81 on the upper side of the case body 78 and below the other fitting hole 81 on the lower side. ing. As shown in FIG. 3, the indoor latch lever 56 passes through the latch lever insertion hole 82 on the lower side of the case body 78.

  As shown in FIG. 13, the upper and lower ends of the case body 78 and the case lid 79 are formed in an arc shape above the upper latch lever insertion hole 82 and below the lower latch lever insertion hole 82. A mounting bar engaging recess 83 that is curved in a straight line is provided. Each mounting bar 25 is engaged with each mounting bar engaging recess 83. A latch bolt insertion hole 84 is formed at the front end of the lock case 75.

  As shown in FIG. 12, the front end of the lock case 75 is fixed to the lock case mounting plate 85, and the lock case mounting plate 85 is fixed to the wooden mouth 11 of the door 2. A latch bolt mounting portion 86 is formed at the front portion of each lock case 75. The front surface of the latch bolt mounting portion 86 is opened. Insertion openings 87 are formed on both upper and lower surfaces of the latch bolt mounting portion 86.

  Next, the stopper mechanism 76 will be described. The stopper mechanism 76 includes a pair of front and rear upper drive plates 88, a pair of front and rear lower drive plates 90 disposed below the upper drive plate 88, a front upper drive plate 88 and a front lower drive plate 90. A pair of upper and lower evacuation restricting plates 91 are mainly configured.

  The front upper drive plate 88 is rotatable about the first fulcrum 92, and an upper pressing portion 93 is provided at the front end of the front upper drive plate 88. The rear upper drive plate 88 is rotatable around a second fulcrum 94 provided behind the first fulcrum 92. The rear upper drive plate 88 is swingably connected to the front upper drive plate 88 between the first fulcrum 92 and the second fulcrum 94. Since each lower drive plate 90 is vertically symmetrical with each upper drive plate 88, description thereof is omitted.

  The upper retraction restricting plate 91 is rotatable around a third fulcrum 95 provided at the rear part thereof. The upper retraction restricting plate 91 is provided with a pressed portion 96 that protrudes rearward, and the pressed portion 96 is in contact with the pressing portion 93 of the upper drive plate 88 on the front side. A locking piece 97 that is inserted into the latch bolt mounting portion 86 through the upper insertion opening 87 is provided at the front end of the upper retraction regulating plate 91. The lower evacuation restriction plate 91 has the same configuration as the upper evacuation restriction plate 91, and thus the description thereof is omitted. However, the rotation shaft of the lower retraction regulating plate 91 is referred to as a fourth fulcrum 98. A biasing spring 99 is wound around the outer periphery of the fourth fulcrum 98.

  Next, the latch bolt 77 will be described. The latch bolt 77 is mounted on the latch bolt mounting portion 86 of the lock case 75 so as to be rotatable in the horizontal direction. The latch bolt 77 moves forward and backward with respect to the mouth 11 of the door 2 in accordance with the horizontal rotation. The front portion of the latch bolt 77 protrudes forward of the door 11 of the door 2 through the latch bolt insertion hole 84 of the lock case 75 and engages with the strike 101 provided on the fixed portion 100 such as the door frame. doing. Thereby, the closed state of the door 2 with respect to the to-be-fixed part 100 is hold | maintained. A coil spring 102 is interposed between the rear surface of the latch bolt 77 and the latch bolt mounting portion 86, and the latch bolt 77 is urged in the protruding direction (forward in this embodiment) by the coil spring 102.

  In the configuration as described above, when the door 2 is closed, the outdoor handle 15 is urged to the non-operation position by the urging force of the torsion coil spring 50 (see the solid line in FIG. 9). Further, as shown in FIG. 12A, the latching piece 97 of each retraction restricting plate 91 latches the latch bolt 77 by the biasing force of the biasing spring 99, and the latch from the tree mouth 11 of the door 2 is latched. Retraction of the bolt 77 is restricted. Thereby, the state in which the latch bolt 77 is engaged with the strike 101 of the fixed part 100 is maintained, and the opening of the door 2 to the fixed part 100 is restricted.

  In this state, when the grip 37 of the outdoor handle 15 is pulled toward the front side, the outdoor handle 15 rotates forward about the lever shaft 46 to the operation position (see a two-dot chain line in FIG. 9). With this rotation, the outdoor latch lever 16 rotates integrally with the outdoor handle 15 around the lever shaft 46. As the outdoor latch lever 16 rotates, as shown in FIG. 12B, the outdoor latch lever 16 presses the rear upper drive plate 88 on the rear side of the stopper mechanism 76 so that the rear side latch lever 16 The upper drive plate 88 rotates around the second fulcrum 94. Along with this, the front upper drive plate 88 pivotably connected to the rear upper drive plate 88 rotates about the first fulcrum 92, and the pressing portion 93 of the front upper drive plate 88 moves upward. The pressed portion 96 of the retraction regulating plate 91 is pressed. By this pressing, the upper retraction restricting plate 91 rotates around the third fulcrum 95, and the latch bolt 77 is unlocked by the engaging piece 97 of the upper retraction restricting plate 91.

  Each lower drive plate 90 rotates by the same action as each upper drive plate 88, and the pressing portion 93 of the lower drive plate 90 on the front side presses the pressed portion 96 of the lower retraction regulating plate 91. By this pressing, the lower retraction restricting plate 91 rotates around the fourth fulcrum 98, and the latch bolt 77 locked by the engaging piece 97 of the lower retraction restricting plate 91 is also released. As a result, the latch bolt 77 can be retracted from the mouth 11 of the door 2, and the door 2 can be opened with respect to the fixed portion 100. As described above, in the present embodiment, with the rotation of the outdoor latch lever 16, the stopper mechanism 76 can switch between the retraction restricted state and the releasable state from the top 11 of the latch bolt 77.

  Even when the indoor handle 55 is pressed rearward (backward), the door 2 can be opened with respect to the fixed portion 100 by the same action as described above. That is, in the push-pull lock 1 of this embodiment, the door 2 can be opened by a pulling operation of the outdoor handle 15 or a pressing operation of the indoor handle 55.

  By the way, when the outdoor handle 15 is pulled as described above, a large load is applied to the outdoor fixing member 13. However, in this embodiment, the fitting portion 34 provided in the reinforcing member 14 fixed to the outdoor side fixing member 13 is connected to each fitting hole 80 and each other fitting hole 81 provided in the lock case 75. Since it is made to fit, it becomes possible to disperse | distribute said load to the lock case 75, and the load concerning the outdoor side fixing member 13 can be reduced. Therefore, it is possible to reduce the size of the outdoor fixing member 13 while preventing the position of the outdoor fixing member 13 from being displaced. Accordingly, the outdoor fixing member 13 can be easily fixed to a thin wall of the glass door. And the appearance of the push-pull lock 1 can be improved.

  In the present embodiment, the case where the reinforcing member 14 is fixed only to the outdoor fixing member 13 has been described. However, in another different embodiment, the reinforcing member 14 may be fixed only to the indoor fixing member 53, The reinforcing member 14 may be fixed to both the outer fixing member 13 and the indoor fixing member 53.

DESCRIPTION OF SYMBOLS 1 Push-pull lock 2 Door 3 Outer wall surface 11 Wood end 13 Outdoor side fixing member 14 Reinforcement member 15 Outdoor side handle 16 Outdoor side latch lever 17 Outdoor side base 33 Fixing part 34 Fitting part 58 Outdoor side arm case 75 Lock case 76 Stopper mechanism 77 Latch bolt 80 Fitting hole 81 Other fitting hole 104 Back surface 105 (of outer wall surface) Side surface 106 (of lock case) Opposite side surface (of lock case)

Claims (3)

A fixing member provided on the wall surface of the door;
A handle rotatably supported by the fixing member;
A latch lever that rotates as the handle rotates;
A latch bolt provided so as to be capable of advancing and retreating with respect to the mouth of the door;
A stopper mechanism that is disposed in the door and switches between a retraction restricted state and a retreatable state of the latch bolt from the mouth as the latch lever rotates,
A lock case disposed in the door and accommodating the stopper mechanism,
A reinforcing member is fixed to the fixing member,
The push-pull lock, wherein the lock case is provided with a fitting hole on a side surface facing the back surface of the wall surface, and the reinforcing member is fitted in the fitting hole. The lock case is provided with another fitting hole on the side surface opposite to the side surface,
2. The push-pull lock according to claim 1, wherein the reinforcing member passes through an internal space of the lock case and is fitted in the other fitting hole. The fixing member is
A base fixed to the wall surface;
An arm case fixed to the pedestal and accommodating a part of the handle;
The reinforcing member is
A fixing portion fixed to the arm case;
A pair of fitting portions extending from both ends of the fixing portion and fitting into a pair of fitting holes provided in the side surface of the lock case are provided. Push-pull tablets as described in.

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