JP4669765B2 - Locking device for door of joinery - Google Patents

Description

  The present invention relates to a door locking device for a fitting that fits a door of a doorway, an indoor / outdoor door, and the like.

  In Patent Document 1, “a pipe-shaped fixed guide main body fixed to the wall surface of the door, a lock bar member slidably inserted into the main body, and an operation pin is provided on the lock bar member. A unit-type door locking device including a knob-type operation unit and a receiving metal fitting provided on a door fixing frame is described.

  At the time of locking, the basic operation of the above-described configuration is to hold the operating portion, pull out the lock bar member from the main body along the lateral groove of the main body, fit it into the receiving metal fitting, and rotate the lock bar member by a predetermined amount in the circumferential direction of the main body. Such a locking device has been used for a long time.

  Therefore, this locking device has a problem in crime prevention because the main body, the bar member, and the receiving metal fitting are in one set and is a so-called auxiliary locking device. Moreover, it is a unit-type locking device with a reduced number of parts, and does not consider a barrier-free universal design.

  Patent Document 2 states that, for example, when the outer handle is rotated, the opening / closing cam located in the bracket rotates in a predetermined direction, and the urging force pushes out the hook from the bracket so as to engage the receiving metal. (Paragraphs 0019 and 0020).

  The opening / closing device described in Patent Document 2 is excellent in that when a manipulation member is rotated, a hook is immediately applied and unlocked via a cam mechanism incorporated in a mounting seat. However, the opening / closing device provided with the scissors is intended to allow the scissors to be immediately removed from the metal fittings when the operation member is operated, and as in Patent Document 1, it is compatible with crime prevention and barrier-free universal design. It doesn't take sex into account.

  In recent years, with regard to locks and doors for joinery, there has been a demand for the appearance of door locking devices that take into account compatibility between crime prevention and universal design, while taking into consideration the elderly and the disabled.

In Patent Document 3, when the indoor operation member (thumbnail knob) is rotated 90 degrees, a first locking piece called “kamaded” protrudes from the front plate of the lock box, It is described that it engages with a receiving tool (FIGS. 1 and 5).
Japanese Patent Publication No. 9-151648 Japanese Patent Publication No. 2001-200667 Japanese Patent Publication No. 2000-291303

  The main object of the present invention is to propose a door locking device considering the compatibility between crime prevention and universal design. The second object is to securely engage and disengage the lock rod member with respect to the receiving member through the power transmission means when the operation member is rotated. The third purpose is to sufficiently exhibit the handrail function. The fourth purpose is to combine the long seat before the lock and the support member main body that supports the rod-shaped fixed guide having a handrail function with good appearance. The fifth object is to rationally combine a plurality of parts constituting the power transmission means. The sixth purpose is to improve crime prevention.

  A door locking device for a joinery according to the present invention is provided on a side wall of a door of a joinery in a lateral direction via a support member, and has a handrail function, and is slidable on the rod-like fixed guide. And a lock bar member that can be moved back and forth in the longitudinal direction from one end side of the bar-shaped fixed guide to be engaged with and disengaged from the receiving member on the fixed frame side, and a lock that is attached to the free end of the door. When the operation member of the lock is operated, the lock rod member is engaged with and disengaged from the receiving member through the power transmission means interposed between the operation member and the lock rod member.

  In the above configuration, the operation member is a thumb turn knob on the inner wall side of the door. Further, the bar-shaped fixed guide is a long handrail handed over a set of support members fixed to the left and right ends of the inner wall of the door. Further, the support member at the free end of the door is characterized by comprising a long lock seat in the vertical direction orthogonal to the rod-shaped fixed guide, and a support member main body integrally provided outside the long seat. Further, the power transmission means is a plurality of parts incorporated in the support member of the free end portion of the door, and the plurality of parts are a vertical rack and upper and lower transmission gears respectively meshed with the rack, A meshing piece that rotates via one transmission gear and an engagement arm that rotates together with the meshing piece and engages with an engaged portion of the lock rod member. In addition, the lock includes a first locking piece, and the lock bar member corresponds to a second locking piece.

(A) It is possible to propose a door locking device in consideration of compatibility between crime prevention and universal design. That is, since a rod (lock bar member) that has been used for a long time is integrally provided on a bar-shaped fixed guide having a handrail function, it is not directly attacked by a bar or the like. Therefore, crime prevention is enhanced. On the other hand, when the door is opened, the operation member for the locking piece can be operated while being caught or grasped by the rod-shaped fixed guide, which is very easy.
(B) Further, when the operation member is rotated, the lock rod member is reliably engaged with and disengaged from the receiving device via the power transmission means. Specifically, the stroke of the lock bar member can be sufficiently earned only by rotating the thumb turn.
(C) The invention according to claim 2 can maintain operability and safety depending on the environment. For example, when the door locking device is attached to the inner wall surface of the door of the doorway, if there is a large level difference in the listing, the door can be opened from the inside of the room to the outside while being caught by the rod-shaped fixed guide, improving operability. It is possible to prevent a situation where the balance is lost.
(D) According to the invention described in claim 3, since the bar-shaped fixed guide is long, the handrail function can be sufficiently exhibited.
(E) The invention described in claim 4 can be combined with a good appearance with the base of the lock and the support member main body that supports the rod-shaped fixed guide having a handrail function.
(F) In the invention according to claim 5, a plurality of parts constituting the power transmission means can be reasonably arranged in the support member.
(G) Since invention of Claim 6 is a double lock, it can improve crime prevention property compared with the conventional locking device for doors.

  Hereinafter, the best mode for carrying out the present invention shown in FIGS. 1 to 9 will be described.

(1) Environment and Features of the Invention FIG. 1 is a schematic explanatory diagram showing the environment of the invention. In FIG. 1, X is a door locking device for joinery. Reference numeral 1 denotes a fixed frame as a fitting, and a receiving frame 3 is fixedly provided on a vertical frame 2 of the fixed frame 1. A door 4 is attached to the fixed frame 1 through a hinge so as to be openable and closable. The door 4 opens and closes in a horizontal direction from the free end 4b side based on an attachment base end 4a provided with a hinge. In FIG. 1, the inner wall surface 5 a of the door 4 is visible, and the door 4 can be opened, for example, to the upper side (back side) of the drawing.

  The door locking device X includes a rod-shaped fixed guide 8 that is installed in a lateral direction through left and right support members 6, 7 at a substantially central portion of the inner wall surface 5 a of the door 4, and one end side of the rod-shaped fixed guide 8. A lock bar member 9 slidably fitted on the free end 4b side of the door 4 and a lock Y attached to the free end 4b of the door 4 are provided, and the operation member 10 of the lock Y is operated. Then, the lock bar member 9 is engaged and disengaged with the support 3 on the fixed frame body 1 side through the power transmission means 11 provided on the support member 7 on the one end side of the bar-shaped fixed guide 8.

  That is, the door locking device X of the joinery of the present invention is provided on the side wall 5a of the door 4 of the joinery with the rod-shaped fixed guide 8 provided in the lateral direction via the support members 6 and 7 and capable of being gripped. The bar-shaped fixed guide 8 is slidably provided, and is a lock that is movable back and forth in the longitudinal direction from one end of the bar-shaped fixed guide 8 so as to be engaged with and disengaged from the support 3 on the door fixed frame 1 side. A power transmission means comprising a bar member 9 and a lock Y attached to the free end 4b of the door, and when the operation member 10 of the lock Y is operated, the power transmission means interposed between the operation member 10 and the lock bar member 9 11, the lock rod member 9 is engaged with and disengaged from the receiving member 3 (characteristic portion).

(2) Specific features In the present invention, in consideration of compatibility between crime prevention and barrier-free universal design, the operation member 10 is a thumb-turn knob of a lock Y, while the rod-shaped fixed guide 8 is It is an eaves-like handrail erected on a pair of support members 6 and 7 fixed to the left and right ends of the inner wall surface 5a of the door 4 (characteristic portion).

  Further, in the present invention, in consideration of operability, the lock rod member 9 can be connected to the lock rod member 9 via the power transmission means 11 including the engagement arm only by rotating the commonly used rotary thumb-turn knob 10 by approximately 90 degrees. Has been devised so as to advance to a desired position and engage with a receiving member (fastener) 3 on the fixed frame 1, 2 side.

  Hereinafter, specific requirements of the present invention will be sequentially described, but detailed matters will be omitted from the drawings and the description thereof.

(3) Specific Configuration FIG. 2 is a right side view seen from the end face side of the free end 4b of the door 4. FIG. 3 is an enlarged explanatory view of the main part viewed from the inner wall surface 5 a of the door 4. FIG. 4 is an enlarged explanatory view of a main part viewed from the lower side of the door 4. FIG. 5 is a schematic explanatory view of each member constituting the present invention. FIG. 6 and FIG. 7 are explanatory diagrams showing the positional relationship of the parts constituting the power transmission means. Further, FIGS. 8 and 9 are schematic explanatory views showing the engagement relationship and the action of the engagement arm constituting the power transmission means and the lock rod member on the rod-like fixed guide side.

  Therefore, in FIG. 2, when the door 4 is used as a reference, 15 is indoors and 16 is outdoor. Therefore, 17 is a thumb turn device mounted on the inner wall surface 5a of the door 4, and the thumb turn device 17 has a thumb turn knob 10 which can be inserted and removed, for example. Although a detailed description of the thumb turn device 17 is omitted, the thumb turn device 17 includes a drive gear 19 at the insertion inner end of the thumb turn shaft 18 as shown in FIG.

  On the other hand, 21 is a cylinder device mounted on the outer wall surface 5b of the door 4. When the cylinder device 21 is operated with a key, a first locking piece referred to as "sicket" via a known locking mechanism. 22 appears and disappears from the window portion 24 of the front plate 23. Of course, when the thumb turn knob 10 described above is rotated, the first locking piece 22 is locked or unlocked. In the present invention, when the thumb turn knob 10 is rotated, not only the first locking piece 22 but also the lock rod member 9 as the second locking piece moves forward and backward with respect to the support 3. Therefore, the door locking device X is not an auxiliary lock but a double lock type main lock in consideration of safety.

  Next, the lock Y is provided with internal and external operation handles. When the inner and outer operation handles are respectively operated, the latch 25 is retracted into the lock box via a known latch mechanism.

  Reference numeral 26 denotes an outer operation handle. In this embodiment, the outer handle 26 is an L-shaped lever handle that rotates around the axis of the handle shaft portion 26a. On the other hand, an inner operation handle provided on the indoor side is omitted. The inner operating handle should preferably be of a different type (push handle) than the outer handle that rotates about its axis. Here, the specific configuration of the inner handle, the mounting location, etc. are not described.

(4) Support member 7 at the free end of the door
For example, as shown in FIGS. 2 and 3, the support member 7 of the free end 4 b of the door 4 is integrally formed with a case-like long seat 31 for a lock in the vertical direction perpendicular to the rod-like fixed guide 8 and the outside of the long seat 31. The support member main body 32 is provided.

  Thus, the long seat 31 is a mounting seat as a base member in this embodiment, and a thumb turn seat 33 constituting the thumb turn device 17 is appropriately fixed to the upper end portion side via a fixing tool 34. On the other hand, the support member main body 32 is fixed to the lower end portion side of the long seat 31 via a plurality of fixing tools 35 so as to face the support member 6 on the base end portion 4 a side of the door 4.

  Further, the support member main body 32 is opposed to the support 3 positioned in the vertical frame 2 of the fixed frame 1 with a slight gap. Therefore, the support member main body 32 includes a case-shaped attachment portion 32a formed in an arbitrary shape, and a mountain-shaped support portion 32b protruding from the attachment portion 32a to the indoor side, and the through hole of the support portion 32b. The small-diameter end portion of the rod-shaped fixed guide 8 is fitted in. Then, a plurality of parts of the power transmission means 11 described below are appropriately incorporated in the support member 7 of the free end 4b of the door 4.

(5) Power transmission means 11
The power transmission means 11 will be described with reference to FIG. The power transmission means 11 of the present embodiment is arranged in a longitudinal rack 41 fixedly disposed in the long seat 31 and in the long seat 31 and the support member main body 32 so as to mesh with the rack 41, respectively. The upper and lower transmission gears (pinions) 42 and 43, a plurality of meshing pieces 44 and 45 that rotate via the transmission gear 43 in the support member main body 32, and the meshing pieces 44 and 45 rotate together. In addition, the engaging arm 46 is engaged with the engaged portion of the lock bar member 9.

  Thus, the lower end portion of the rack 41 is provided with engagement teeth 41 a that protrude toward the support member main body 32 so as to mesh with the lower transmission gear 43. Further, a first meshing piece 44 is disposed on the same axis as the lower transmission gear 43 in the vertical direction, and the first meshing piece 44 has engaging teeth 44a projecting to the peripheral end.

  Further, the second engagement piece 45 disposed in an inclined state in the support member main body 32 has engagement teeth 45 a that engage with the engagement teeth 44 a of the first engagement piece 44, and an engagement arm. The base 46a of 46 is united. The arm portion 46b of the engaging arm 46 is selectively engaged with a plurality of engaged portions (two protrusions) 9a, 9b of the lock rod member 9, as shown in FIGS. To do. Note that description and reference numerals of the shaft portion that pivotally supports each component of the power transmission means 11 are omitted.

(6) Operation FIG. 9 shows the engagement relationship between the engagement arm 46 on the power transmission means 11 side and the lock rod member 9 on the rod-like fixed guide 8 side when the thumb turn 10 is rotated. Specifically, FIG. 9A is an explanatory diagram when the thumb turn 10 is rotated 90 degrees in the unlocking direction. In FIG. 9A, the engagement arm 46 rotates counterclockwise by the power transmitted from the power transmission means 11, and the lock bar member 9 is pulled back to the bar-shaped fixed guide 8 side. State (unlocked state). On the other hand, FIG.9 (c) is explanatory drawing at the time of turning the thumb turn 10 to the locking direction 90 degree | times. In FIG. 9C, the engagement arm 46 rotates clockwise by the power transmitted from the power transmission means 11, and the lock rod member 9 is pulled out from the rod-shaped fixed guide 8, and as a result, the engagement hole of the receiver 3. Is engaged (locked state). Therefore, FIG. 9B shows a halfway state.

  As described above, in the door locking device X of the present invention, when the operation member 10 on the indoor side is operated, the lock bar member 9 having the hook function slides from the horizontal bar-shaped fixed guide 8 having the handrail function. It is engaged with and disengaged from the receiving frame 3 provided on the fixed frame bodies 1 and 2 side as a building fixture (door frame).

  In the examples shown in the embodiment of the invention, although not particularly shown, the lock rod member 9 is made into a new configuration with a plurality of parts in consideration of crime prevention, toughness, parts exchangeability, etc. Can do.

  For example, a plurality of parts are fixedly mounted in a rod-shaped fixed guide having a lateral cutout, and an inner cylinder having a cutout that matches the cutout, and is slidable on the inner cylinder. A plurality of engaging protrusions (engaged portions) that are fixed to the sliding rod and that selectively engage with the distal end portion of the engaging arm 46 that constitutes the power transmission means 11. And a long plate-like engaged piece having 9a and 9b.

  The present invention is mainly used in locksmiths and joinery industries.

1 to 9 are explanatory views showing the best embodiments of the present invention.
BRIEF DESCRIPTION OF THE DRAWINGS Schematic explanatory drawing which shows the environment of implementation of invention. The right view seen from the end surface side of the free end part of a door. The schematic explanatory drawing of the principal part seen from the inner wall face of the door. The schematic explanatory drawing of the principal part seen from the lower side of the door. Schematic explanatory drawing of each member which comprises this invention. Explanatory drawing from the front which shows the positional relationship of the components which comprise a power transmission means. Explanatory drawing from the left side which shows the positional relationship of the components which comprise a power transmission means. The perspective view which shows the engagement relationship of the engagement arm which comprises a power transmission means, and the lock rod member by the side of a rod-shaped fixed guide. (A), (b), (c) Each schematic explanatory drawing which shows an effect | action.

Explanation of symbols

  X: Locking device for door, Y: Lock, 1 ... Fixed frame, 2 ... Vertical frame, 3 ... Receptor, 4 ... Door, 5a ... Inner wall surface, 6 ... Support member, 7 ... Support on the free end side Members 8 ... rod-shaped fixed guides 9 ... lock rod members (second locking pieces), 9a, 9b ... engaged portions (two projections), 10 ... operating members, 11 ... power transmission means, 15 ... indoors 16 ... Outdoor, 17 ... Thumb turn device, 18 ... Thumb turn shaft, 19 ... Drive gear, 21 ... Cylinder device, 22 ... First locking piece, 23 ... Front plate, 25 ... Latch, 26 ... Outside operation handle, 26a ... handle shaft part, 31 ... long seat, 32 ... support member main body, 32a ... attachment part, 32b ... support part, 33 ... thumb turn seat, 41 ... rack, 42 ... upper transmission gear, 43 ... lower transmission gear, 44 ... 1st meshing piece, 45 ... 2nd meshing piece, 46 ... engagement arm.

Claims (6)

A bar-shaped fixed guide provided laterally on one side wall of the door of the joinery through a support member and having a handrail function, and slidably provided on the bar-shaped fixed guide, and one end of the bar-shaped fixed guide A lock bar member that can be moved forward and backward in the longitudinal direction from the side of the portion and can be attached to and detached from the holder on the side of the fixed frame body, and a lock that is attached to the free end of the door, and when the operation member of the lock is operated, A door locking device for a joinery, wherein the lock bar member is engaged with and disengaged from the receiver via a power transmission means interposed between the member and the lock bar member. The door locking device for a fitting according to claim 1, wherein the operation member is a thumb turn knob on the inner wall side of the door. 2. The door for a fitting according to claim 1, wherein the bar-shaped fixed guide is a long eaves handrail erected on a pair of support members respectively fixed to the left and right ends of the inner wall of the door. Locking device. The support member of the free end of the door according to any one of claims 1 to 3, is provided integrally with a long seat for a lock in a vertical direction perpendicular to the rod-shaped fixed guide and outside the long seat. A door locking device for a joinery comprising a support member main body. 2. The power transmission means according to claim 1, wherein the power transmission means is a plurality of parts incorporated in a support member at a free end of the door, and the plurality of parts mesh with the vertical rack and the rack, respectively. The upper and lower transmission gears, a meshing piece that rotates via one of the transmission gears, and an engagement arm that rotates together with the meshing piece and engages with the engaged portion of the lock rod member. Locking device for doors of joinery. 2. The door locking device for a fitting according to claim 1, wherein the lock includes a first locking piece, and the lock bar member corresponds to the second locking piece.

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