JP2007120116A - Anchor mechanism of outer attachment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an anchor mechanism without impairing the inside of a door when an indoor side cover of the anchor mechanism is taken off. <P>SOLUTION: An anchor plate 7 consisting of a long and narrow plate material is formed in a stepped shape so that both side end edges can maitain gaps between the inside of the door and them, and on the other hand, a thread hiding 9 is molded in a flat boat shape, an interlocking claw engaged with each side end edge of the anchor plate is formed in the recess section side opposed to the anchor plate 7 and, at the same time, a notch 12 is formed in the lower end thereof, and when the thread hiding is put on the anchor plate so as to cover the anchor plate, the shape is set so that the lower end of the anchor plate 7 can reach the notch 12 of the thread hiding. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an anchor mechanism (hereinafter simply referred to as an “anchor mechanism”) of a keyboard, electric lock unit, or other functional unit (hereinafter simply referred to as an external attachment) that is externally attached to the outer surface of an existing door. The present invention relates to an anchor mechanism that does not damage the inner surface of the door when the indoor cover of the mechanism is removed.

  For example, when a button lock related to the manufacture and sale of the present applicant is externally attached to an existing door fitted with a cylinder lock of a predetermined type, as shown in FIGS. The cut paper patterns 2 and 2 are attached to predetermined positions on the edge, and at least one mounting hole 3 and 3 is formed at the position displayed on the cut paper pattern 2.

  Then, for example, two mounting columns 5 and 5 (see FIG. 1) planted on the back surface of the external attachment (button lock) 4 are inserted into the mounting holes 3 and 3 from the outdoor side, respectively. The truss screws 6 and 6 (see FIG. 2) screwed into the female screw holes formed at the inner end are used to fix the external attachment to the door outer surface via the anchor plate 7.

  The anchor plate 7 exposed on the inner surface of the door is covered with a flat boat-shaped screw concealment described later. In addition, since the illustrated button lock is described in Patent Document 1 described later, further detailed description is omitted.

The external attachment is not limited to the button lock, and may include an external electric lock, a numeric keyboard for an electric lock, a buzzer, an interphone, or the like described in Patent Document 2 below.
Japanese Patent Application No. 2004-308680 JP-A-8-189233

  The anchor mechanism having the above-described configuration is well known. However, when the external attachment is removed for convenience, the screw concealment is first lifted by inserting a screwdriver into, for example, the lower end opening of the screw concealment, contrary to the procedure described above. Remove it.

  However, at the time of this removal, the screw concealment is removed by lever action with the tip of the driver as a fulcrum, but the tip of the driver hits the inner surface of the door by the reaction force from the screw concealment opening as the point of action, and the door There is still room for improvement in the anchor mechanism, which may damage the inner surface.

  SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide an anchor mechanism that prevents the inner surface of the door from being damaged when the screw concealment is removed, thereby eliminating the above-described disadvantages.

  In order to achieve the above object, the present invention inserts at least one mounting pillar planted on the back surface of the external attachment from an outdoor side into a mounting hole drilled to penetrate the door surface, A truss screw that is screwed into the female screw hole formed at the inner end of the mounting column 5 from the indoor side is fixed so that the external attachment is called to the outer surface of the door via the anchor plate, and the truss screw fixed to the inner surface of the door and The anchor plate is covered with a flat boat-shaped screw concealment, and the anchor plate made of an elongated plate is formed in a stepped shape so that both side edges maintain a gap between the door inner surface and the screw concealment. Is formed into a flat boat shape, and a locking claw that engages with the side edge of the anchor plate is formed on the concave side facing the anchor plate, and a notch is formed at the lower end so that the screw concealment covers the anchor plate. When mounted to the anchor plate, characterized in that the lower end of the anchor plate has set its shape 致Ru so the notch of the screw hidden.

  In the anchor mechanism according to the present invention configured as described above, when removing the external attachment, for example, when inserting the tip of a thin flat screwdriver into the screw concealed notch, the tip of the driver is the opening edge of the notch and the anchor plate. Enter the void surrounded by

  In this state, if the screw concealment is lifted up and removed, in other words, when the operator pulls the driver's hand toward you, the tip of the driver strongly pushes the inner surface of the door by the reaction force from the notch, Since the tip pushes the inner surface of the door through the anchor plate, the desired effect is achieved that the outer surface of the door is not damaged.

  The door when removing the screw concealment with a simple configuration in which the shape of the anchor plate is set so that the lower end of the anchor plate fixed to the inner surface of the door with a truss screw matches the notch for inserting a screwdriver or other tool I was able to eliminate any scratches on the inside.

Embodiments of the present invention will be described below with reference to the drawings.
3 to 5, reference numeral 7 denotes the anchor plate. The anchor plate 7 is an elongated plate material that is vertically long when fixed to the inner surface of the door by a truss screw 6 (see FIG. 2).

  As shown in FIG. 5, the anchor plate 7 is stepped so that both side edges are slightly separated from the inner surface of the door.

  4 and 5 are fixed to the inner surface of the door by the truss screws 6 and 6 passing through the screw holes 8 (see FIG. 2) so that the lower surface 7a is joined to the inner surface of the door.

  On the other hand, in FIG. 6 to FIG. 10, reference numeral 9 denotes a screw concealment, and the screw concealment 9 in the illustrated embodiment is a vertically long oval shape on the inner surface side (left side in FIG. 7) facing the door inner surface. It is formed in a flat boat shape with a recess.

  Four locking claws 11, 11 that engage with the side edge of the anchor plate 7 are formed on the recessed side of the screw concealment 9 facing the anchor plate.

  In the illustrated embodiment, the screw concealment 9 is made of an elastic synthetic resin, and the engaging claws 11, 11 are formed integrally with the screw concealing recess, and the engaging pawl 11 is formed with a flange at the lower end. , 11 can be expanded left and right in FIG.

  In the illustrated embodiment, the vertical dimension of the locking claw 11 in FIG. 10 cannot be increased, and if the deformation amount is large, it may break, so the screw concealment 9 fixed on the inner surface of the door is anchored. When mounting on the plate, the screw concealment 9 may be inclined and engaged with the locking claw 11 of the anchor plate one side at a time.

  On the other hand, as shown in FIGS. 8 to 10, for example, a rectangular notch 12 is formed at the lower end of the screw cover 9. The notch 12 is formed to insert a tool such as a flat-blade screwdriver when removing the screw cover 9 from the anchor plate 7 when removing the external attachment, for example.

  The characteristic configuration of the present invention is that the shape and dimensions of the anchor plate 7 are set so that the lower end of the anchor plate 7 fits into the notch 12 when the screw cover 9 is attached to the anchor plate 7 as shown in FIG. It is that.

  As shown in FIG. 11, the anchor mechanism according to the embodiment of the present invention constructed as described above removes the screw concealment 9 because the door inner surface portion of the notch 12 is closed by the anchor plate 7. Therefore, when the tip of a flat-blade screwdriver is inserted into the notch 12, the tip is inserted into the space surrounded by the opening edge of the notch and the lower end of the anchor plate. As described above, the inner surface of the door is not damaged even if the button is operated.

  On the other hand, in the conventional anchor mechanism shown in FIG. 12, when the tip of the driver is inserted in the direction of arrow A, the opening is large and easy to insert, but as described above, the door inner surface is easily damaged.

The external appearance perspective view which shows an example which mounts an external attachment to the door outer surface. The external appearance perspective view for demonstrating the calling fixation of the external attachment by an anchor board and a truss screw. The front view of an anchor board. The side view of an anchor board. The bottom view of an anchor board. The front view of screw concealment. The longitudinal cross-sectional view of a screw concealment. The back view of screw concealment. The bottom view of screw concealment. The cross-sectional view of a screw concealment. The longitudinal cross-sectional view of the anchor mechanism by one Example of this invention. The longitudinal cross-sectional view which shows an example of the conventional anchor mechanism.

Explanation of symbols

1 Door 3 Mounting Hole 4 External Attachment 5 Mounting Column 6 Truss Screw 7 Anchor Plate 8 Screw Hole 9 Screw Concealed 11 Locking Claw 12 Notch

Claims (1)

  A female screw hole formed at the inner end of the mounting column 5 by inserting at least one mounting column planted on the back surface of the external attachment from the outdoor side into a mounting hole drilled to penetrate the door surface Secure the external attachment to the outer surface of the door via the anchor plate with a truss screw that is screwed in from the indoor side, and cover the truss screw and anchor plate fixed to the inner surface of the door with a flat boat-shaped screw concealment. The anchor plate made of an elongated plate is formed in a stepped manner so that both side edges maintain a gap between the inner surface of the door, while the screw concealment is formed into a flat boat shape and faces the anchor plate. A locking claw that engages with the side edge of the anchor plate is formed on the concave side, and a notch is formed on the lower end thereof. When the screw cover is mounted on the anchor plate so as to cover the anchor plate, the anchor Anchoring mechanism external attachment lower end of which is characterized in that set its shape 致Ru so the notch of the screw hidden.

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