JP2006257639A - Strike plate for door lock - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a strike plate which enables the opening of a door by a relatively weak force without the need for a tool, and which prevents the scattering of components in the opening of the door. <P>SOLUTION: In this strike plate for a door lock, where the door is kept in a closed state by locking a latch of the door lock, a latch locking member 4 for locking the latch is loaded into a strike plate body 1 via a fixing means 5, which is unfixed by means of an unfixing member 2 capable of being operated from the outside, in such a manner as to be movable in the opening direction of the door. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a receiving seat for a door lock provided with an emergency opening mechanism.

Door locks that are configured to operate the grip ball and lever to raise and lower the latch are usually configured to be inserted into the interior from the end face of the door and fixed to the end face with screws. It is configured to be fixed to the surface of the column (or wall portion) facing the end surface of the door with screws.
Although the door lock itself is almost semi-permanent, the door lock itself may be damaged due to wear, etc. due to wear and tear caused by long-term use, such as a cam or spring member provided inside the door lock. In rare cases, the latch is locked in a state where the latch is engaged with the seat, and there is a problem that it becomes difficult to open the door and it is trapped in the room.

In order to cope with such a problem, as seen in Patent Document 1, the present applicant has a member that comes into contact with the latch of the door lock in the notch formed from the surface facing the door lock to the other surface. It was proposed to attach to the other surface with screws etc. so as to be removable.
However, since the stop is located outside the room, it is necessary for someone else to remove the screw, and there is a problem that the door cannot be opened alone.

In addition, a rack is secured to both side walls of the trolley box body that is open on one side, on both sides of the abutting member 47 that is mounted from the opening side of the trolley box body, and above and below the inner surface of the trolley box. It has also been proposed to engage the engaging pieces biased outward (vertical direction) between the rack teeth.
According to this, although a tool is not required, it is necessary to apply a considerable force to the door, and if it is opened, there is a risk of momentum and falling, and the engagement piece built in the toro box In addition, since the springs are scattered apart, there are problems such as requiring troublesome assembly work when reusing.
JP-A-9-49351

  The present invention has been made in view of such a problem, and the object of the present invention is that the door can be opened with a relatively light force without using a tool, and parts are prevented from being scattered at the time of opening. To provide a seat.

  In order to achieve such a subject, the invention of claim 1 is a latch locking member for locking the latch in a receiving seat for the door lock that locks the latch of the door lock and maintains the door in a closed state. However, it is loaded in the receiving seat main body via a fixing means that is fixed by a release member that can be externally operated so as to be movable in the door opening direction.

  According to a second aspect of the present invention, a holding member is provided on the latch locking member, and a groove that allows the holding member to move to a predetermined position is formed in the receiving seat body.

  According to a third aspect of the present invention, the latch locking member comprises two members, a latch insertion window forming portion and a front plate portion, and the relative distance between the front plate portion and the latch insertion window forming portion can be adjusted. It is configured.

  According to a fourth aspect of the present invention, the fixing means always maintains a position where the fixing means is engaged with the receiving seat body by the biasing means, and moves in a direction to retract from the receiving seat body when the release member is operated. It is configured as follows.

  According to a fifth aspect of the present invention, the fixing means has a slope, and when the release member is operated, the fixation is released by moving along the slope.

  According to a sixth aspect of the present invention, a second inclined surface that engages with the inclined surface is formed at a position facing the inclined surface of the fixing means of the receiving body, and the latch locking member is used to close the door. It is configured to move backward by movement in the direction.

  In the invention of claim 7, a biasing member for biasing the latch locking member in the opening direction of the door is interposed between the latch locking member and the receiving seat body.

  According to the first aspect of the present invention, since the latch forming member can be moved from the receiving seat main body by operating the release member when trapped, the door can be opened with a light force. Compared with the conventional one to be released, it is possible to prevent the component parts from being scattered unnecessarily, and to prevent a momentary fall.

  According to the second aspect of the present invention, since the latch locking member is provided with the holding member, the latch locking member is restrained by the holding member even in a state in which the latch locking member is released from the receiving seat body. It is possible to prevent the door from stopping at a predetermined position and opening at once.

  According to invention of Claim 3, a latch latching position can be set to an appropriate position by adjusting the relative distance of the latch insertion window formation part which comprises the said latch latching member, and a front board part.

  FIG. 1-A shows a state in which a receiving seat for a door of the present invention is attached, and an emergency escape button 2 as a release member provided on the receiving seat body 1 is slightly opened from the door stop A. It is fixed to the heel B through the receiving decorative plate 3 so as to protrude to the side.

  The receiving seat decorative plate 3 is formed with a notch 3a for allowing the latch locking member 4 to move to the outside, that is, the door opening side.

  With this structure, when the emergency escape button 2 is pushed outward (in the direction of the arrow C) from the confined room side, both sides of the latch locking member 4 (upper and lower in the figure) as shown in FIG. Of the spring 7 incorporated in the latch latching member 4 which is latched to the receiving seat main body 1 is moved inward as a fixing means to be fixed by the release member incorporated in As shown in FIG. 2 (a), the latch insertion window 8 protrudes beyond the flange B and relaxes the engagement with the latch bolt E to such an extent that the door D can be opened.

  Even when the latch locking member 4 protrudes in this way, it can be elastically deformed on both sides (upper and lower in the figure) of the latch locking member 4, and in the grooves 9 and 9 formed in the receiving seat body 1. The protruding amount L is limited by the holding members 10 and 10 to be guided. As described above, since the protruding amount of the latch locking member 4 is limited to a short distance by the holding members 10 and 10, the latch locking member 4 is scattered or the door D is stopped at a predetermined position and opened at a stroke. Can be prevented.

  In this state, as shown in FIG. 2 (b), when the latch locking member 4 is further pushed by a finger or the like in the direction indicated by the arrow F, the holding member 10 is bent, so that the latch bolt E is detached from the latch insertion window 8. , The door can be opened.

  After exiting in this way, when the protruding latch locking member 4 is pushed into the original position against the biasing force of the spring 7, the latch locking member 4 is held by the holding members 10 and 10 and the grooves 9 and 9. In this process, the inclined surface 5a of the fixing latch 5 is moved inward (in the direction of arrows G and G ′ in FIG. 1-b) by the inclined surface 1a formed at the front end of the receiving seat body 1. Pushed to get over slope 1a. Then, the flat surface 1 b formed on the back surface is engaged with the flat surface 5 b of the fixing latch 5. In addition, the code | symbol 10a in a figure is a convex part for the removal | prevention prevention formed in the other end of the holding member 10, and is latched by the receiving seat main body 1 in the state protruded to the predetermined position.

  Needless to say, since the receiving seat body 1 and the fixing latch 5 are configured to maintain a certain level of strength, the latch locking member 4 may come off even if a slight force is applied to the door. It functions well as a latch seat for the door lock.

  In the above-described embodiment, the latch locking member 4 is prevented from dropping and scattering by the two holding members 10 and 10 provided on both sides (upper and lower sides in the figure). As shown in C, it is clear that the same effect can be obtained even if one holding member 10 'and a groove (not shown) for guiding the holding member 10' are provided on the substantially center line.

  FIG. 3 shows the receiving decorative plate 3 removed. The emergency escape button 2 is guided by the recess of the receiving seat body 1 and extends to a position where the tip 11a can operate the fixing latch 5. Is formed. On the other hand, as shown in FIGS. 4 and 5, the fixing latch 5 has an inclined surface 5a on the tip side of the arm 11 and a flat surface portion 5b on the opposite side, that is, on the outer side, and is movable in the vertical direction. Are inserted into the recess 4 a of the latch locking member 4 while being biased outward by the springs 12, 12. A wall 4b is formed at the tip of the concave portion 4a, and has a structure that prevents the fixing latch 5 from popping out.

  Furthermore, in this embodiment, the latch locking member 4 is composed of two members, a latch insertion window forming portion 41 and a front plate portion 42 as shown in FIG. 13, the latch insertion window forming portion 41 is configured to be relatively movable against the spring 7. Thereby, the locking position of the latch of the door lock can be set to an appropriate position by rotating the screw 13 from the insertion hole 14 (FIG. 1-A) with the tool 15 such as a hexagon wrench.

  Further, the spring 7 has guide wall portions 1c and 1c that are in contact with the outer periphery of the spring 7 as shown in FIG. 7 so as not to come out when the latch locking member 4 protrudes (FIG. 1B). And the engaging groove portion 1d, the end portion of the spring 7 is formed with a linear unwinding end portion 7a, and the spring 7 is guided to the guide wall portion so that the unwinding end portion 7a is engaged with the engaging groove portion 1d. 1c and 1c are loaded and held.

  In the above-described embodiment, the emergency escape button 2 as the release member is pushed outward from the enclosed room side so that the engagement with the latch bolt E is eased. It can also be configured such that it can be released by pushing in the axial direction of the bolt (in the drawing, the direction perpendicular to the paper surface).

  That is, as shown in FIG. 8, the front end 11a ′ reaches the fixing latches 5 ′ and 5 ′, the rear end reaches the emergency escape button 2 ′, and is perpendicular to the paper surface of the emergency escape button 2 ′. Arms 11 ′ and 11 ′ having slopes 11b ′ (FIG. 9A) that move in the expanding direction (rear end) by pressing in the direction (the direction of arrow F in FIG. On the other hand, the button 2 ′ is provided with a slope 2a ′ for turning the arm 11 ′ in cooperation with the slope 11b ′ of the arm 11 ′ as shown in FIG.

  According to this embodiment, when the emergency escape button 2 ′ is pressed against the heel B, the rear end of the arm 11 ′ is outwardly centered on the shaft 20 by the inclined surface 2 a ′ provided on the button 2 ′ (in the vertical direction in the figure). ) Spreads the locking latches 5 ′ and 5 ′ against the springs 12 and 12 to release the engagement with the flat surface 1b serving as the locking portion.

  As a result, the latch insertion window 8 is popped out by the urging force of the spring 7 incorporated in the latch locking member 4 locked to the receiving seat body 1 as described above, as shown in FIG. The engagement with the latch bolt E is relaxed to such an extent that the door D can be opened by protruding from the flange B.

  Even when the latch locking member 4 protrudes in this way, it can be elastically deformed on both sides (upper and lower in the figure) of the latch locking member 4, and in the grooves 9 and 9 formed in the receiving seat body 1. The protruding amount L is limited by the holding members 10 and 10 to be guided. As described above, since the protruding amount of the latch locking member 4 is limited to a short distance by the holding members 10 and 10, the latch locking member 4 is scattered or the door D is stopped at a predetermined position and opened at a stroke. Can be prevented.

  On the other hand, after the escape, when the protruding latch locking member 4 is pushed into the original position against the urging force of the spring 7, the latch locking member 4 moves into the holding members 10 and 10 and the grooves 9 and 9. In this process, the inclined surface 5a of the fixing latch 5 is pushed inwardly (center direction) by the inclined surface 1a formed at the front end of the receiving body 1 to get over the inclined surface 1a and is formed on the back surface. The flat surface 1b engaged with the flat surface 5b of the fixing latch 5 returns to a normal state.

It is a figure which shows one Example of the receiving seat of this invention in the state attached to the collar. It is a figure shown in the state which the latch latching member of the receiving seat same as the above protruded. It is a figure which shows another Example in the state which the latch latching member of the receiving seat same as the above protruded. FIGS. 1A and 1B are views showing a state immediately after the latch locking member of the receiving seat of the present invention protrudes and a state in which the engagement with the latch bolt is released. It is a front view which shows one Example of the receiving seat of this invention. It is sectional drawing in the AA in FIG. It is sectional drawing in the BB line in FIG. It is a figure which shows one Example in a latch locking member. It is a figure which shows one Example of the fixing structure of the spring which urges | biases a latch locking member. It is a front view which shows the other Example of the receiving seat of this invention. FIGS. 1A and 1B are views showing an arm and an emergency escape button that constitute the receiving seat.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Receptacle body 2, 2 'Emergency escape button 3 Release member 3 Receptacle decorative plate 4 Latch locking member 5, 5' Fixing latch 7 Spring 8 Latch insertion window 9 Groove 10, 10 'Holding member 11, 11 'Arm A Door B B Ｄ D Door E Latch Bolt

Claims (7)

In the door lock seat that locks the door lock latch and keeps the door closed,
A latch locking member for locking the latch is used for the door lock loaded on the receiving seat body through a fixing means that can be moved in the opening direction of the door and fixed by an externally operable release member. Pedestal. The receiving seat for door locks according to claim 1, wherein a holding member is provided on the latch locking member, and a groove is formed in the receiving seat main body so that the holding member can be moved to a predetermined position. The latch latching member is composed of two members, a latch insertion window forming portion and a front plate portion, and the relative distance between the front plate portion and the latch insertion window forming portion is adjustable. 1. A receiving seat for the door lock according to 1. The fixing means is configured to maintain a position where the fixing means is normally engaged by the urging means, and to move in a direction of retreating from the receiving seat body when the release member is operated. Item 1. A receiving seat for a door lock according to Item 1. 2. The door lock receiving seat according to claim 1, wherein the fixing means has an inclined surface, and the fixing is released by moving along the inclined surface when the releasing member is operated. A second inclined surface that engages with the inclined surface is formed at a position opposite to the inclined surface of the fixing means of the receiving seat body, and the latch locking member moves backward by movement of the door in the closing direction. The receiving seat for door locks of Claim 1 comprised as follows. 2. The door lock receiver according to claim 1, wherein a biasing member that biases the latch locking member in an opening direction of the door is interposed between the latch locking member and the receiving seat main body. seat.

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