JP2007262693A - Door rattling preventing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a door from rattling in the opening and closing direction to the utmost due to wind pressure in a locked state. <P>SOLUTION: This door rattling preventing device is constructed by combination of a lock including a dead bolt projected from the front of a lock box with a brace having a locking inlet where the dead bolt is engaged and disengaged. The tip part of the dead bolt is formed at an attracting part, and on the other hand, a magnet member is provided in the interior of the brace through the fixed side fitting part, whereby in the locked state, the tip side of the dead bolt is attracted to the magnet member side by the attraction of the magnet member and at least one side of the tip part of the dead bolt is put in the state of abutting on the edge part of the locking inlet. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a door rattle prevention device.

  In Patent Document 1, in a door lock comprising a combination of a lock provided with a dead bolt and a receiving metal fitting having an engaging entrance through which the dead bolt engages and disengages, a second magnet is provided in the receiving recess of the receiving metal metal, In the lock box, there is described a matter in which a first magnet to be attracted corresponding to the polarity of the second magnet is provided on an operating arm that engages with a dead bolt.

  Further, in Patent Document 2, a second magnet is provided in the receiving recess of the receiving metal fitting, while in the lock box, a first magnet that is attracted to the tip of the latch bolt corresponding to the polarity of the second magnet. The matters to provide are described.

  The technical idea common to these Patent Documents 1 and 2 is that when the door is closed, the dead bolt is caused by the attractive force between the magnetic bodies that exceeds the spring force of the spring member that biases the dead bolt or the latch bolt in the backward direction. It is intended to be released in the engaging direction. Thereby, the automatic locking of a dead bolt when the door is closed (Patent Document 1) and the silencing prevention when the latch bolt is engaged can be achieved (Patent Document 2).

  Further, Patent Document 3 includes a matter in which a second magnet is attached to the bottom of the open / close door, while a first magnet that is attracted to the second magnet is provided at an appropriate location on the floor corresponding to a predetermined opening position of the door. Are listed. The invention described in Patent Document 3 is a door fixing device that uses an attracting force between magnetic bodies so that the door does not move freely when the door is opened, and stops the door at a predetermined position.

As seen in these patent documents, in the technical field of locks and joinery, the matter of using the attractive force between magnetic bodies is a known matter, but to prevent the door from rattling in the opening and closing direction due to wind pressure as much as possible. There is no matter to devise dead bolts and metal fittings.
Registered Utility Model No. 3019380 JP-A-8-21001 Japanese Patent Laid-Open No. 11-293994

  A first object of the present invention is an anti-rattle device for a door comprising a combination of a lock provided with a dead bolt and a receiving metal fitting having an engaging entrance through which the dead bolt is engaged and disengaged. This is to prevent the door from rattling in the opening and closing direction due to wind pressure. The second object is that the magnet member (first embodiment) or the suction plate (second embodiment) can be easily attached to the mounting portion of the receiving metal fitting. In addition, the magnet member (first embodiment) or the suction plate (second embodiment) can be easily replaced.

  The door backlash prevention device of the present invention is a door backlash prevention device comprising a combination of a lock provided with a dead bolt coming out from the front of the lock box and a receiving metal fitting having an engagement entrance through which the dead bolt engages and disengages, The dead bolt's tip side is formed as an adsorbing part, while a magnet member is provided inside the bracket via a fixed side mounting portion. When locked, the dead bolt's tip side is attracted by the magnet member. It is drawn to the magnet member side by force, and at least one side of the tip of the dead bolt is brought into contact with the edge of the engagement port.

  The door rattle prevention device of the present invention is a door rattle prevention device comprising a combination of a lock provided with a dead bolt coming out from the front of the lock box and a receiving metal fitting having a mating entrance through which the dead bolt engages and disengages. The dead bolt front end side is formed in an adsorbing portion including a magnet member, while an adsorbing material adsorbing plate is provided inside the receiving bracket via a fixed mounting portion, and when in a locked state, The leading end side of the dead bolt is moved toward the suction plate side by the attraction force, and at least one side of the leading end portion of the dead bolt is in contact with the edge of the engagement port.

(1) The edge of the entrance of the metal fitting receiving the door by adsorbing the tip (adsorption portion) of the dead bolt to the magnet member (first embodiment) or the suction plate (second embodiment) inside the metal fitting Alternatively, it is possible to prevent the door from rattling in the opening / closing direction due to wind pressure as much as possible by abutting against the mounting portion.
(2) In the case of the embodiment in which the magnet member or the suction plate is attached to the attachment portion formed on the strike of the receiving metal via the fixing means, the attachment is simple. Moreover, a magnet member (1st Example) or an adsorption | suction board (2nd Example) can be replaced | exchanged easily.
(3) In some embodiments, the position adjustment of the magnet member (first embodiment) or the suction plate (second embodiment) can be facilitated.
(4) When the lock is an electric lock having a dharma that meshes with the transmission gear of the transmission gear member that is rotated by the driving force of the drive source, generally the engagement opening of the receiving bracket is generally the left and right wall thickness of the dead bolt Since it is wider than that, it is very effective in relation to the object of the invention.

  The best mode (first embodiment) for carrying out the present invention shown in FIGS. 1 to 5 will be described below.

(1) Environment for Implementing the Invention FIG. 1 is a schematic explanatory diagram showing the environment for implementing the invention. In FIG. 1, X is a door and 1 is a lock box provided at the free end of the door X. This lock box 1 mainly constitutes a part of an electric lock at the entrance / exit that places importance on the peace of residence or the management of facilities such as condominiums and high-rise buildings.

  The lock box 1 has a front 2 facing a strike plate, which will be described later, and an opening 3 for dead bolt is formed in the front 2. The lock box 1 has a wide side wall 4 intersecting the front 2 and another side wall 5 facing the one side wall 4.

  Reference numeral 6 denotes one of transmission gears constituting a transmission gear member rotatably mounted on the fixed support shaft 7 of the one side wall 4. The transmission gear 6 rotates to the left and right via a clutch mechanism that transmits a driving force of a driving source (for example, a driving motor) shown in the explanatory diagram and the driving force to a dharma (dead bolt driving body) at the time of locking and unlocking. A drive motor and a clutch mechanism (not shown) are appropriately provided in the lock box 1.

  Denoted at 10 is a dharma (dead bolt driving body) provided in the lock box 1 so as to always mesh with the transmission gear 6. The dharma 10 has a gear portion 11 that meshes with the transmission gear 6 on one side in the radial direction, and a drive arm 12 that engages with the operating body 31 of the dead bolt 30 on the other side in the radial direction. Further, the dharma 10 has a central shaft hole 14 for connecting to a pair of annular projecting fitting portions 13 with a cylinder lock or the like, and the gear portion 11 described above is formed in a fan shape with the central shaft hole 14 as a coaxial core. Has been.

  Reference numeral 15 denotes a bearing member fixed to one side wall 4 of the lock box 1 via an attachment base portion 16. The bearing member 15 has an annular projecting portion 17 connected to the mounting base portion 16, and the projecting fitting portion 13 of the dharma 10 is fitted into the annular projecting portion 17. A small protrusion 19 is formed on the upper surface of the annular protrusion 17 as a stopper that contacts the drive arm 12 of the dharma 10. The dharma 10 is rotatably mounted on the bearing member 15 via a protruding fitting portion 13.

  Reference numeral 20 denotes a guide plate fixed to one side wall 4 of the lock box 1 so as to be positioned below the bearing member 15. A plurality of horizontal guide portions (horizontal long grooves, horizontal long holes, etc.) 21 and the like are formed on the guide plate 20 with a predetermined interval.

  Reference numeral 30 denotes a dead bolt that moves forward and backward in a horizontal state via a plurality of movable guide shafts 22 engaged with the horizontal guide portion 21. When the dharma 10 is rotated by the driving force of the driving source, the dead bolt 30 appears and disappears with respect to the front 2 of the lock box 1 by the driving arm 12 of the dharma 10.

In this embodiment, the dead bolt 30 is provided below the dharma 10 and moves forward and backward from the opening 3 of the front 2 via an operating body 25 that engages with the drive arm 12 of the dharma 10 when unlocked. The operating body 25 is not an essential requirement of the dead bolt 30, and for example, an engagement recess having an opposing inclined surface may be formed on the upper side of the rear end portion side of the dead bolt 30.
(2) Main part of the invention The main part of the device for preventing rattling of the door is the dead bolt 30 coming out from the front 2 of the lock box 1 and the door frame body Y side having the engaging inlet 44 through which the dead bolt 30 engages and disengages. It consists of the combination of the receiving metal fittings 40.

  First, the dead bolt 30 will be described. As shown in FIGS. 1 and 2, the prismatic dead bolt 30 includes a “front end side 30 a” that protrudes from the opening 3 of the front 2 and a “rear end side 30 b that is always located in the lock box 1. However, the dead bolt 30 of the first embodiment has the tip end side 30a formed in the suction portion.

  Thus, as shown in FIG. 2, the adsorbing portion 30a has a cross-sectional channel shape so as to surround the rectangular block-shaped solid portion 31 and the front end surface of the solid portion 31 and the vertical side wall surface that receives external pressure from the left and right directions. And a case-like cover 33 that encloses the solid portion 31 and the suction plate 32.

  By the way, the suction plate 32 of the present embodiment is formed in a U-shaped cross section, but this is only an example, and at least the vertical side wall 31a of the solid portion 31 facing a magnet member on the receiving metal side described later. It suffices if a vertical plate-like suction plate exists.

  Next, the receiving metal fitting 40 will be described. As shown in FIG. 3, the receiving metal fitting 40 is composed of a troyoke 41 and a strike 42 fixed to the front surface of the troyoke 41. The opening 43 of the trolley 41 of this embodiment is formed wide so that the lock is an electric lock.

  On the other hand, the strike 42 is formed with a vertically long engagement port 44, and one of the edges forming the engagement port 44 is bent approximately 90 degrees inward to form a magnet member mounting portion 45. An attachment hole (mesh hole) 47 for the fixing means 46 is formed at the center of the attachment portion 45.

  Next, the configuration of the magnet member 50 will be described. The magnet member 50 according to the present embodiment includes a flange portion 51a and a plate-like fixing portion 51b extending outward from the central portion of one side wall of the flange portion, and a dice-shaped magnet 52 is accommodated in the flange portion 51a. ing.

(3) Main Action A horizontal long hole 53 is formed in the fixing portion 51b of the magnet member 50, and the magnet member 50 of this embodiment is inserted into the horizontal long hole 53 and screwed into the mounting hole 47 of the strike 42. The fixing means 46 is fixed to the strike 42 so as to be removable or position-adjustable in the forward / backward direction of the dead bolt (see FIG. 4).

  Therefore, the magnet member 50 provided inside the metal fitting 40 via the attachment portion 45 has a lateral pressure of the dead bolt 30 during locking when the distal end portion 30a of the dead bolt 30 enters the wide engagement port 44 of the metal fitting 40. It is positioned so as to face one side 31a of the vertical side wall of the receiving side.

  Therefore, in the locked state, as shown in FIG. 5, one side of the vertical side wall that receives the side pressure on the distal end side 30 a of the dead bolt 30 is attracted by, for example, the magnet member 50 located on the indoor side, and strikes. 42 is closely in contact with the opposite side walls of the edge 44a through the attachment portion 45 of the engagement opening 44 and the flange 51a of the magnet member 50.

  In the embodiment of the present invention, means for automatically urging the door in a direction to always open in the case where a means (for example, a door closer) for automatically pulling the door back to the indoor side is attached to the door or the case is assumed. Is attached to a door or the like, one end of the dead bolt is brought into contact with the inner edge or the outer edge of the strike entrance.

  Hereinafter, in this section, a second embodiment of the present invention will be described. Since the second embodiment is substantially the same invention as the first embodiment, the same reference numerals are assigned and redundant description is omitted.

In the second embodiment, focusing on the attractive force of the magnetic material, the configuration is reversed from that of the first embodiment.
In other words, in the second embodiment, the tip end side 30a of the dead bolt 30A is formed in the adsorbing portion including the magnet member 52, while the adsorbing plate 32A made of an adsorbing material is disposed inside the receiving metal fitting 40A via the attachment portion 45. The suction plate 32A faces the one side surface 31a of the vertical side wall that receives the side pressure of the dead bolt when the leading end side 30a of the dead bolt 30A enters the engagement port 44 of the receiving bracket 40A. It is positioned.

  Thus, the magnet member 52 is formed in a simple prismatic shape and is embedded in the horizontal fitting hole 36 formed in the solid portion 31. The suction plate 32A, which is detachably fixed to the attachment portion 45 of the strike 42 of the dead bolt 30A via a fixing means 46, is formed in a stepped shape in cross section.

  As shown in FIG. 8, also in the case of the second embodiment, the dead bolt 30A of the dead bolt 30A is locked when the leading end side 30a of the dead bolt 30A enters the wide engagement port 44 of the receiving metal 40A as in the first embodiment. The vertical side wall 31a that receives the side pressure is in close contact with the edge 44a through the attachment portion 45 of the entrance 44 of the strike 42 and the opposite side wall of the suction plate 32A.

  In the second embodiment, the magnet member 52 is formed in a simple prismatic shape and is embedded in the horizontal fitting hole 52 formed in the solid portion 31, but the shape of the magnet member 52 is single. Alternatively, the design can be changed to a plurality of columnar shapes, long plate shapes, bowl shapes, and the like. Moreover, an embedding aspect can also be performed arbitrarily. Furthermore, each embodiment of the present invention is a combination of a magnet and an attracting plate, but it may be an attraction force using the polarity of opposing magnets on the movable side and the fixed side. The other material of the adsorption plate is iron.

  The present invention is mainly used in joinery, furniture and lock industry.

1 to 5 are explanatory views showing the best embodiment of the present invention. 6 to 8 are explanatory views showing a second embodiment of the present invention.
BRIEF DESCRIPTION OF THE DRAWINGS Schematic explanatory drawing which shows the environment of implementation of invention. Schematic explanatory drawing for convenience (before adsorption). The exploded perspective view of a receiving metal fitting. Schematic explanatory drawing which shows position adjustment of a magnet member. Schematic explanatory drawing in a locked state (adsorbed state). Schematic explanatory drawing for the convenience of 2nd Example (before adsorption | suction). The perspective view which shows the principal part (strike) of a receiving metal fitting. Schematic explanatory drawing in a locked state (adsorbed state).

Explanation of symbols

X ... door, Y ... door frame, 1 ... lock box, 2 ... front, 3 ... opening, 4 ... one side wall, 5 ... other side wall, 6 ... transmission gear, 7 ... fixed support shaft, 10 ... dharma, 11 ... Gear part, 12 ... drive arm, 13 ... annular projecting fitting part, 14 ... center shaft hole, 15 ... bearing member, 16 ... mounting base part, 17 ... annular projecting part, 19 ... small projection, 20 ... guide plate, 21 DESCRIPTION OF SYMBOLS ... Horizontal guide part, 22 ... Movable guide shaft, 25 ... Actuation piece, 30, 30A ... Dead bolt, 30a ... Front end side (adsorption part), 30b ... Rear end side, 31 ... Solid part, 31a ... Vertical side wall 32 ... 32A ... Suction plate, 33 ... Case-like cover, 40 ... Receiving bracket, 41 ... Trooke, 42 ... Strike, 43 ... Opening, 44,40A ... Entrance, 44a ... Edge, 45 ... Mounting portion, 46 ... Fixing means, 47... Mounting hole, 50... Magnet member, 51 a. Fixing sheet portion, 52 ... magnet (permanent magnet), 53 ... horizontal long opening.

Claims (6)

A door backlash prevention device comprising a combination of a lock provided with a dead bolt coming out from the front of the lock box and a receiving metal fitting having an engaging entrance through which the dead bolt is engaged and disengaged, wherein the leading end side of the dead bolt is used as an adsorption portion On the other hand, a magnet member is provided inside the receiving bracket through a fixed-side mounting portion, and when locked, the distal end side of the dead bolt is attracted to the magnet member side by the attraction force of the magnet member, An apparatus for preventing backlash of a door, wherein one side of a front end portion of a dead bolt is brought into contact with an edge portion of the entrance. 2. The dead bolt attracting portion has an attracting plate made of an adsorptive material at least on one side of the vertical side wall, while the magnet member of the receiving bracket is provided in a protruding piece shape inside the receiving bracket. A door backlash prevention device characterized in that it is detachably provided on a fixed mounting portion via a fixing means. The door rattle prevention device according to claim 2, wherein the magnet member of the metal fitting is provided so that the position of the magnet member can be adjusted in the advancing and retreating direction of the dead bolt. A door backlash prevention device comprising a combination of a lock provided with a dead bolt coming out from the front of the lock box and a receiving metal fitting having an engaging entrance through which the dead bolt is engaged and disengaged. On the other hand, a suction plate made of absorptive material is provided inside the receiving bracket via a fixed side mounting part.When locked, the tip of the dead bolt is attracted by its suction force. An apparatus for preventing rattling of a door, characterized in that it moves to the plate side and at least one side of the tip of the dead bolt comes into contact with the edge of the entrance. 5. The strike attachment portion of the metal fitting is a protrusion portion formed by bending the edge of the engagement opening inward, and an adsorption plate is attached to the protrusion portion via a fixing means. A device for preventing rattling of a door, characterized by comprising: 5. The door rattle prevention device according to claim 4, wherein the lock is an electric lock provided with a dharma that meshes with a transmission gear of a transmission gear member that is rotated by a driving force of a driving source.

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