JP2008190226A - Indoor display lock for door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To enlarge a display window and a display panel in comparison with a conventional embodiment. <P>SOLUTION: A display lock for a door has a mounting base plate and a case cover for covering the mounting base plate and the display panel provided integrally with an unlocking operating shaft and including identification information on the surface, as members to be fixed to the outer wall surface of the indoor door through fasteners, wherein a shaft part of a thumb-turn and the unlocking operating shaft are coaxially located, and the display window is formed at a front wall of the cover between the outer end of the operating shaft and the head of the fastener. The fastener fixes the mounting base plate to the outer wall surface of the door in a state of locating the head on the back side of the display window, and the cover is connected to the mounting base plate by an engaging means. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an indoor door display lock. The present invention is particularly applied to doors of indoor toilets and private rooms.

  FIG. 10 is a diagram illustrating a conventional environment, and this environment diagram is conceptually simplified for comparison with the present invention. Moreover, FIG. 11 is explanatory drawing on the external appearance seen from the outer wall surface of the indoor door (for example, toilet). An example of a conventional display lock will be described with reference to FIGS. 10 and 11.

10 and 11, reference numeral 1 denotes a sliding door or a rotary indoor door to which the display lock X is attached (hereinafter referred to as “door”). 1 a is an outer wall surface of the door 1, and 1 b is an inner wall surface of the door 1. A member indicated by an imaginary line in the door 1 means a dead bolt or a sickle (hereinafter referred to as “locking piece”) 2.
The member shown in cross section on the outer wall surface 1 a of the door 1 is a fixed cylinder 4 for an inner operation member (hereinafter referred to as “thumb turn”) 3. Further, the horizontal bar in the door 1 is a connecting shaft 5 for the inner and outer operation members. The inner thumb turn 3 is connected to the inner end of the connecting shaft 5 with or without the thumb turn driving member 6, while the outer operating member (hereinafter referred to as the outer operating member) is connected to the outer end of the connecting shaft 5. , Referred to as “unlocking operation shaft”) 7.

  In other words, since the shaft portion 3a, the connecting shaft 5 and the unlocking operation shaft 7 of the thumb turn 3 are located on the same axis, if either the thumb turn 3 or the unlocking operation shaft 7 is rotated, the operation member The locking piece 2 moves forward and backward (locks / unlocks) from the end face of the door 1 by the operating force. Here, since the thumb turn drive member 6 is not the gist of the invention, the whole is shown by a box, and the detailed description thereof is omitted.

  The unlocking operation shaft 7 and the connecting shaft 5 may be a single member. The thumb turn drive member 6 may or may not be present. In short, it is sufficient that the shaft portion 3a of the thumb turn 3 and the unlocking operation shaft 7 are located on the same axis.

  Now, the main part which comprises the display lock | rock X for doors is attached in the state protruded to the outer wall surface 1a of the door 1 (refer FIG. 11).

  That is, 11 is a disk-like mounting base plate fixed to the outer wall surface 1a of the door 1 via a plurality of fixing tools 12, and a central hole (reference hole for the unlocking operation shaft 7) is provided at the center. ) 13 is formed. On the front surface of the mounting base plate 11, for example, a display plate receiving protrusion 11a is provided in a ring shape or as a plurality of small protrusions. An attachment hole (through hole, female screw, etc.) 14 that is screwed into the fixing tool 12 is formed at the outer end portion of the attachment base plate 11 further than the receiving projection 11a. The fixing tool 12 passes through or is screwed into the mounting hole 14.

In other words, the shallow case-like cover 15 is fixed to the mounting base plate 11 via a fixing tool 12 and the like positioned vertically as shown in FIGS. 10 and 11. In other words, the cover 15 is fixed to the outer wall surface 1a of the door 1 “from the outside” through an unspecified number of through holes for the fasteners.
The circular cover 15 fixed to the outer wall surface 1a of the door 1 directly or via the mounting base plate 11 has an arcuate display window 16 concentrically around the edge 31 of the through hole of the front wall 15a. From the display window 16, identification information such as characters, colors, symbols, and the like of the display board 18 that is integrally fixed to the unlocking operation shaft 7 can be seen.

  The circular display plate 18 is located between the front surface of the mounting base plate 11 and the inner surface of the front wall 15 a of the cover 15 and rotates together with the operation members 3 and 7.

  In the above configuration, for example, the front wall 15a of the cover 15 is circular, the cover 15 is fixed to the outer wall surface 1a of the door 1 through the fixing tool 12 whose head 12a is visible from inside the room, Since the outer end portion 7a of the unlocking operation shaft 7 fitted to the edge 31 of the 15 through holes has a coin engaging groove (split groove), the outer dimension is formed to be relatively large in accordance with the shape of the coin. The fixing tool 12 is positioned substantially directly above the outer end 7a of the unlocking operation shaft 7, and the distance (width) between the peripheral edge of the outer end 7a and the fixing tool 12 is short. For this reason, the “display window 16” and the “display panel 18” cannot be enlarged.

  Accordingly, there is a problem that the smaller the cover 15 is, the more difficult it is to identify the identification information of the display board 18 that can be seen from the display window 16.

  By the way, in paragraph 0022 and paragraph 0021 of Patent Document 1, “the two mounting pipes 11 and 12 penetrate the thickness direction of the door 1 and extend to the indoor side, and the thumb turn 5 A mounting screw (not shown) is attached to the concave portion 10a of the base member 10. The display plate 15 is supported and accommodated by a rotating member 16 to be described later.

  In addition, the paragraph 0030 states that “the head member 16a and the split groove 16b of the rotating member 16 are slightly protruded to the outside through the circular window hole 23b in the attached state of the cover member 23”. In the paragraph 0031, “In the unlocked state of the display lock 4, the display sheet 17 of the display plate 15 is displayed through the display window 23c. When operated and locked, the rotating shaft 20 is simultaneously rotated and the display plate 15 is rotated integrally therewith, and another display sheet 18 is displayed through the display window hole 23c. .

  However, since the place where the display lock of Patent Document 1 is applied is mainly the entrance door (the door entering the room from the outside), the base member 10 is on the outer wall surface side of the entrance door in consideration of crime prevention ( It has a fixed structure that prevents it from being pulled out from the outdoor side. That is, the base member 10 is screwed to the two attachment pipes 11 and 12 from the inner wall surface (thum turn 5) side of the entrance door.

Therefore, it is not suitable for indoor toilets and doors for private rooms. This is because, in general, display locks applied to this type of door do not need to consider crime prevention, but on the other hand, it is desired that the display lock can be easily attached or removed from the outer wall side of the door. Because. In particular, the ability to remove the display lock from the outer wall surface side of the door is important when an accident occurs in a toilet or the like.
JP 10-82219 A

  The intended purpose of the present invention is to lock the display lock on the outer wall surface of the door with a fastener in the indoor door display lock. Even so, the “display window” and the “display board” can be enlarged. The second object of the present invention is that the position of the front wall of the cover does not protrude as much as possible from the outer wall surface of the door. In addition, the cover can be easily coupled to the mounting base plate.

  In the indoor door lock according to the present invention, a member fixed to the outer wall surface of the indoor door via a fixing member is provided integrally with the mounting base plate, the mounting base plate, and the unlocking operation shaft. And a case-like cover for covering each of the display plates including identification information on the surface, and the shaft portion of the thumb turn on the indoor side and the operation shaft for unlocking on the outdoor side are located on the same axis, and the operation shaft In a door display lock in a room in which a display window for showing the identification information to the outside is formed between a peripheral edge of an outer end portion of the cover and the head of the fixing tool. The mounting base plate is fixed to the outer wall surface of the door with its head positioned on the back side of the display window, and the cover is coupled to the mounting base plate by engagement means or fixing means.

  In the above, the mounting base plate is formed with a lateral recess in which the head of the fixing tool is located on the front surface.

  In the case of an indoor door display lock, when the display lock is fixed to the outer wall surface of the door via a fixing tool, the display window 16A and the display board are compared with the conventional embodiment. 18A "can be increased. Further, the position of the front wall of the cover does not protrude as much as possible from the outer wall surface of the door.

  The best mode for carrying out the present invention shown in FIGS. 1 to 9 will be described below (first embodiment). In addition, the same (or the same) code | symbol is attached | subjected to the part same as the structure of a prior art example, and the overlapping description is omitted. In the following, mainly different items will be mainly described.

(1) Mounting base plate 11A
FIG. 1 is a schematic explanatory diagram showing an environment for carrying out the invention. FIG. 1 corresponds to FIG. 10 of the conventional example. FIG. 2 is an explanatory view on the appearance as seen from the outer wall surface of the door. Therefore, FIG. 2 corresponds to FIG. 11 of the conventional example.

  As is clear from the comparison between FIG. 1 and FIG. 10, the fixing tool 12A of the present invention fixes the mounting base plate 11A to the outer wall surface 1a of the door 1 with its head 12a positioned on the back side of the display window 16A. (Difference 1).

  Further, a lateral recess 21 in which the head 12a of the fixing tool 12A is located is formed on the front surface of the mounting base plate 11A. As shown in FIG. 4, the lateral recess 21 is formed in a circular shape on the front surface of the rectangular thick attachment base plate 11 </ b> A and communicates with the central hole 13 of the attachment base plate 11 </ b> A. The pair of upper and lower mounting holes 14 are respectively formed in the central portion passing through the central hole 13 of the vertical inner wall of the lateral recess 21 in the vertical axis direction.

  A small receiving projection 11a is provided on the surface of the slightly thick annular outer peripheral portion 22 of the mounting base plate 11A with a predetermined interval in the circumferential direction. The shape of the mounting base plate 11A is a circle, a quadrangle (this example), or the like. In addition, new matters provided on the back surface of the mounting base plate 11A are omitted in the drawing.

(2) Display board 18A
The donut-shaped display board 18A is integrally provided on the unlocking operation shaft 7A via unnumbered engagement means. As shown in FIG. 1, the display board 18A of the present invention is formed in a size that substantially covers the front surface of the mounting base plate 11A (difference 2).

  As shown in FIG. 4, the display board 18A includes a display base board 25 and a display sheet 26 attached to the front surface of the display base board 25. The display sheet 26 has a display board 26 as shown in FIG. In the circumferential direction, for example, identification information “Aki, in use” is attached. For example, male / female positioning means 25a and 26a are appropriately provided at the edges of the display base plate 25 and the display sheet 26. In addition, an unnumbered through hole for the unlocking operation shaft 7A is formed at the center of the display base plate 25 and the display sheet 26.

(3) Cover 15A
As is clear from the comparison between FIG. 2 and FIG. 11, no attachment hole for the fixing tool is formed in the front wall 15a of the case-like cover 15A of the present invention (difference 3). Therefore, the display window 16A of the front wall 15a can be formed large (effect).
In addition, the space (width) between the hole edge 31 of the through hole for the unlocking operation shaft 7A formed at the center of the front wall 15a having a circular or square shape (this example) and the outer edge 32 of the front wall 15a. As in the conventional example, the display window 16A can be made large because it can be used as a display window as much as the fixing tool 12 does not exist. As described above, the fixing tool 12A of the present invention is located in the case-like cover 15A.

(4) Cover coupling structure The cover 15A is coupled to the mounting base plate 11A by the engaging means 35. FIG. 8 shows an example. That is, an engagement protrusion 35a having a taper, for example, is provided on the inner wall surface of the side wall 15b in the enclosure direction of the cover 15A, while the engagement protrusion 35a is provided on the side wall 11b of the mounting base plate 11A facing the side wall 15b. An engagement recess 35b that engages with 35a is formed. When the coupling structure of the cover is the engaging means 35, the cover 15A can be fixed to the mounting base plate 11A by the “one-touch method”.

  In this section, another embodiment of the coupling structure of the cover of the present invention is shown just in case. In addition, a code | symbol is used for the same part as 1st Example.

  The cover coupling structure of the second embodiment shown in FIG. 9 is an adhering means 35A. That is, a through hole 35a for the fixing tool 34A is formed on the inner wall surface of the side wall 15b in the enclosure direction of the cover 15A, while the fixing tool 34A is formed on the side wall 11b of the mounting base plate 11A facing the side wall 15b. A female screw 35b is formed. Even if comprised in this way, the objective same as 1st Example can be achieved.

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

FIG. 1 to FIG. 8 are explanatory views showing the best first embodiment of the present invention. FIG. 9 is an explanatory view showing another example in which the design of the main part of the present invention is changed, and FIGS. 10 and 11 are explanatory views showing conventional examples.
BRIEF DESCRIPTION OF THE DRAWINGS Schematic explanatory drawing which shows the environment of implementation of this invention. Explanatory drawing on the external appearance seen from the outer wall surface of the door of this invention. Explanatory drawing of a cover and a display board. The exploded perspective view of the principal part. The front view of a cover. FIG. 6 is a sectional view taken along line 6-6 of FIG. The rear view of a cover. Explanatory drawing of the coupling structure of a cover. The description which shows the other example of the joint structure of a cover. Schematic explanatory drawing which shows the environment of implementation of a prior art example. Explanatory drawing on the external appearance seen from the outer wall surface of the door of a prior art example.

Explanation of symbols

X: Display lock, 1 ... Door (door), 1a ... Outer wall surface, 1b ... Inner wall surface, 2 ... Locking piece, 3 ... Thumb turn, 3a ... Shaft part of thumb turn, 4 ... Fixed cylinder, 5 ... Connecting shaft, 7 ... Operation shaft for unlocking, 7a ... Outer end of operation shaft, 11, 11A ... Mounting base plate, 11b ... Side wall, 12, 12A ... Fixing tool, 12a ... Head of fixing tool, 13 ... Center hole, 14 ... Mounting Hole (penetrating internal thread), 15, 15A ... cover, 15a ... front wall, 15b ... side wall, 16 ... display window, 18, 18A ... display plate, 21 ... lateral recess, 22 ... annular outer peripheral part, 25 ... display base Plate 26, display sheet, 25a, 26a, positioning means, 31 hole edge, 32 outer edge of cover, 35 engaging means, 35A fixing means.

Claims (3)

A member fixed to the outer wall surface of the indoor door via a fixing tool is provided on the mounting base plate, the mounting base plate and the unlocking operation shaft, and a display plate including identification information on the surface. A case-shaped cover for covering, and the shaft portion of the indoor thumb turn and the unlocking operation shaft on the outdoor side are located on the same axis, and the peripheral edge of the outer end portion of the operation shaft and the fixing tool In a door display lock in a room in which a display window for showing the identification information to the outside is formed between the head and the head, the fixing tool has the head on the back side of the display window. A display lock for a door in a room, wherein the mounting base plate is fixed to the outer wall surface of the door in a positioned state, and the cover is coupled to the mounting base plate by an engaging means. 2. The mounting base plate according to claim 1, wherein a lateral recess in which the head of the fixing tool is located is formed on the front surface of the mounting base plate, and the head of the fixing tool is located in the lateral recess. Display lock for doors in the room. A member fixed to the outer wall surface of the indoor door via a fixing tool is provided on the mounting base plate, the mounting base plate and the unlocking operation shaft, and a display plate including identification information on the surface. A case-shaped cover for covering, and the shaft portion of the indoor thumb turn and the unlocking operation shaft on the outdoor side are located on the same axis, and the peripheral edge of the outer end portion of the operation shaft and the fixing tool In a door display lock in a room in which a display window for showing the identification information to the outside is formed between the head and the head, the fixing tool has the head on the back side of the display window. A display lock for a door in a room, wherein the mounting base plate is fixed to an outer wall surface of the door in a positioned state, and the cover is coupled to the mounting base plate by a fixing means.

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