JPH0726811A - Receiving device of radio wave lock - Google Patents

Abstract

PURPOSE:To prevent damages inflicted by mischievous acts, for example, by housing a receiving unit or a door phone camera or the like in a box enclosed with a shielding board which allows radio waves to penetrate through and mounting the box to a building main skeleton in such a fashion that the receiving unit may not be exposed outside. CONSTITUTION:A receiving unit 11, which receives the radio waves of a portable transmission unit 16, is housed in a box 3 together with a door phone camera or the like. An acrylic resin-made shielding board 10, which penetrates the radio waves, is mounted to an opening 6 of the box 3. In addition, the box 3 is fitted in and mounted with an outer wall 1 or the like on the main body side of a building so that a receiving unit 15 may not be exposed outside. It is so arranged that an electric radio wave lock may be unlocked by the radio waves passing through the shielding board 10. This construction makes it possible to prevent damages inflicted by mischievous acts or the like.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a receiver for a radio wave lock and its installation on the building side.

[0002]

2. Description of the Related Art A transmitter unit such as a card capable of transmitting radio waves is carried, and when returning from home, a transmitter unit transmits a signal radio wave to a receiver unit installed on the side of a building, It is known to open the lock when the signals match.

In such a radio wave lock, the receiving unit is installed by embedding it in an outer wall surface or the like with its receiving portion exposed toward the outside of the building.

[0004]

As described above, in the prior art, since the receiving unit of the main body of the building is installed with its receiving portion exposed to the outside of the building, there is an inconvenience that it is easily tampered with. .

The present invention has been made for the purpose of preventing mischief or the like by preventing the receiving portion of a receiving unit for receiving transmitted radio waves from being exposed to the outside.

[0006]

That is, in order to achieve the above object, the present invention provides a radio wave lock device comprising a receiving unit attached to a building body side and a portable transmitting unit, wherein the receiving unit is: It is characterized in that it is housed in a housing space that is closed by a shielding plate that transmits radio waves.

Further, in the above, it is considered that an acrylic resin plate is used as a material of the shield plate which transmits radio waves.

[0008]

As described above, since the receiving unit is housed in the box closed by the shielding plate such as the acrylic resin plate that transmits the radio wave, the receiving unit is not exposed to the outside and can be seen from the outside. There is little danger of being mischievous because it is unknown.

[0009]

EXAMPLES In FIGS. 1 and 2, (1) is an outer wall on the side of a door at the entrance of a house, and an opening (2) formed in this outer wall is open to the back side (inside the building). The stored storage box (3) is fitted and attached. Similarly, a pair of upper and lower openings (5) and (6) are formed in the cover plate (4) which also constitutes the outer side surface of the box (3). (7)
Is an intercom camera, and a mounting plate (9) (projected from the side surface of the box (3) inside the lid plate (4) with the lens portion (8) thereof facing the opening (5) on the upper side. It is attached via 9). The other opening (6) below it is closed by an opaque shield (10) made of an acrylic resin plate that transmits radio waves.

Reference numeral (11) is the receiving unit of the present invention, and the base plate (12) on the rear surface thereof has a hinge (13) attached to one end in the left-right direction thereof, and the other end side of the box (3). It is mounted so that it can be opened by rotating it outward. On the other end side, the magnet (14) attached to the side surface of the box (3) is attracted and held in a closed state. The receiving portion (15) on the front surface (11) side of the receiving unit is the shield plate (10).
Is directed to. That is, as shown in FIG. 1, when the card (16) as a transmission unit is carried when the user comes home from the place where he / she is going, he or she transmits the radio wave with the transmission section of the card (16) directed toward the shield plate (10). Passes through the shield plate (10) and reaches the receiving section (15), and at the same time, the receiving section (1
When the signal received in 5) matches, the entrance door (not shown) is unlocked. The transmission unit (16) includes not only a card type but also other portable types.

[0011]

As described above, according to the present invention, since the receiving unit mounted on the building body side is housed in the housing space closed by the shield plate that transmits the radio waves, the receiving unit. Since the receiving part of is not exposed to the outside and is hard to see, it is possible to prevent damage such as mischief.

Further, since the radio wave lock receiving unit and the doorphone camera are collectively stored in the same storage space as one unit, it is possible to perform management, maintenance and repair of them as a security system at one place. There is.

[Brief description of drawings]

FIG. 1 is a longitudinal sectional view of an essential part of an outer wall portion on which a receiving unit according to an embodiment of the present invention is installed.

FIG. 2 is a transverse plan view of the same.

[Explanation of symbols]

 (3) Box (7) Doorphone camera (10) Shield (11) Receiver unit (15) Receiver (16) Transmit card

Claims (3)

[Claims] 1. A radio wave locking device comprising a receiving unit attached to a building body side and a portable transmitting unit, wherein the receiving unit is housed in a housing space closed by a shield plate for transmitting radio waves. A device for receiving a radio wave lock, which is characterized in that 2. The radio wave lock receiving device according to claim 1, wherein the shielding plate is made of acrylic resin. 3. The radio wave lock receiving device according to claim 1, wherein an intercom camera is housed in the housing space.