WO2004038142A1

WO2004038142A1 - Locking furniture

Info

Publication number: WO2004038142A1
Application number: PCT/DK2003/000719
Authority: WO
Inventors: Søren LOMHOLT
Original assignee: Lomholt Soeren
Priority date: 2002-10-24
Filing date: 2003-10-23
Publication date: 2004-05-06
Also published as: AU2003275527A1

Abstract

The invention relates to locking furniture for securing an entrance region, e.g. a door in a hotel room, from the inside against opening from the outside. The locking furniture is of a type which consists of a first part, a small plate with a projection, designed to engage with a recess in the striking plate, when the entrance region is closed; and a second part, designed to engage with the first part and block the door against opening. The locking furniture is, in addition, provided with an alarm, designed to be activated at an attempt to force the entrance region open. The new, according to the invention, is that the locking furniture is provided with a switch device, which automatically connects the electrical power when the locking furniture is mounted and automatically disconnects when the locking furniture is dismounted.

Description

LOCKING FURNITURE

The invention relates to locking furniture for securing against opening a door, a window or another entrance region of a dwelling or a room in a dwelling, said locking furniture comprising & first part consisting of a plate part provided with a projection, said projection being designed to engage with a recess in the case of entrance region and being provided with first engagement means, and & second part provided with a groove, said groove being designed to receive the first part so that the second part is attached to the first part, and said second part being provided with second engagement means designed to engage with the first engagement means on the first part; in which locking furniture an alarm, consisting of a trigger and a signaller, is added.

BACKGROUND OF THE INVENTION

The locking furniture consists of two parts: a, first part consisting of a small plate which is, by means of a projection, anchored in the striking plate on the frame of an entrance region of a room when the entrance region is closed; and a second part which is locked onto the first part and abuts on the entrance region it self and which thus blocks the entrance region.

The locking furniture is in addition provided with an alarm device, which is activated by sensing displacement between the entrance region and the frame for the entrance region.

BENEFITS

To make the alarm capable of working in a predeterminated period of time, even on a single short impulse from the trigger, a small continuous electrical current on the system is required. The continuous current is also necessary if a smoke detector is added to the system.

To minimize the power consumption, it is better that the continuous electrical current is only connected when it is needed. The purpose of the present invention is just to fulfil this need, which need will be fulfilled as described in the characterising part of claim 1.

The invention consists of a kind of switch which automatically connects the continuous electrical current when the locking furniture is mounted and disconnects the continuous electrical current r when the locking furniture is dismounted. In other words, the power consumption is independent of whether the user remembers to disconnect the power after use or not, and it takes care that the power is always connected when the locking furniture is in use. DESCRIPTION

Fig, 1 is a perspective view of a first part, for an embodiment of the locking furniture according to the invention.

Fig. 2 is an oblique top perspective view of a second part, for an embodiment of the locking fiimiture according to the invention.

Fig. 3 is an oblique top perspective view of the second part, for an embodiment of the locking furniture according to the invention. Fig. 4 is a perspective view of the first part and the second part on the way to be mutually assembled

Fig. 5 is a perspective view of the first part and the second part mutually assembled in the locked position

*On fig. 6, 7 and 7,5, the upper part of the second part is removed, and only the lower part of the second part appears with the first part.

Fig. 6 is a perspective view of the first part and the lower part of the second part mutually assembled to form the locking furniture moving towards a locked position according to the invention

Fig 7 is a perspective view of the first part and the lower part of the second part mutually assembled to form the locking furniture in a locked position according to the invention.

Fig. 7,5 is a perspective view of the lower part of the second part with a battery mounted.

Fig. 8-11 show how the locking furniture of the invention is used in securing an entrance region in the form of a door against intrusion from the outside.

Fig. 12-13 is a schematic view showing the principle of the switch device function.

Fig. 1-3 show parts of an embodyment of locking furniture according to the invention. The locking ftirniture consists of two parts: first part (ύg.l) and a second part (fig.2).

The first part (fig.1) consists of a small plate which is in the end provided with a projection (1) designed to engage with the striking plate in the frame for the entrance; and along the edges of the middle part provided with a toothing (2) consisting of a number of inclining teeth designed to engage with the second part.

The second part (fig.2) consists of a housing having a groove (3) which may encircle at least the edge areas of the first part, and which may be pushed in over the first part. The second part is provided with pawls which may engage with the toothing on the first part when the second part is pushed in over the first part. At one end the second part is provided with a rest (4) which serves as hold against the entrance region when the locking furniture is in operation. The second part is in addition provided with a moveable part (5), in this case a ball, which reaches into the groove(3).

Mounting of the locking furniture is carried out with the door in an open situation as a starting point. The first part is held horizontally with the face of the first part from which the projection(l) extends directed towards the striking plate where the projection goes into a hole in the striking plate(fig.8-9). After this the door is closed and the first part will, because of the projection, be fixed between the door and door frame(fig.10). The second part is then pushed translation-wise horizontally in over the first part, inwards against the door by the groove on the second part being passed in over the edge areas with the toothing on the first part. The second part is pushed as far in over the first part as possible and the pawls in the second part will engage with toothing on the first part and mutually fix the parts, (fig.11). Fig. 4 and 6, respectively shows oblique top perspective view and an oblique bottom perspective view of the lower part of the second part for an embodiment of the locking furniture, moving towards a locked position according to the invention. On fig.4 it is visible that the ball(5) reaches into the groove(3) in the second part and on fig.6 it is visible that the elastic and movable part(9) of the metal plate is in low position with no connection to the contact bar(10). The principle of the situation is shown schematic on fig.12.

Fig.5 and 7, respectively shows oblique top perspective view and an oblique bottom perspective view of the lower part of the second part for an embodiment of the locking furniture, in locked position according to the invention. On fig.5 the first part has passed the ball(5) and pushed it out of the groove an into the body of the second part, and on fig.6 it is visible that the elastic and movable part(9) of the metal plate has been lifted/bended, by press from the ball, into a position where it touches the contact bar(10) and makes connection. The principle of the situation is shown schematic on fig.13.

Fig.7,5 shows the battery(8) position between the bended part(7) of the metal plate and the opposite pole(l 1). Fig.12-13 shows the principle of a type of the invention, where a thin metal plate(6) with a bend part(7) in one end serving as holder and electrical connection, and in another end serving as elastic and movable part(9) able to bend and touch the contact bar(lθ) and make an electrical connection when the ball(5) is pressed against it by the passing first part (12).

Claims

1. Locking furniture for securing against opening a door, a window or another entrance region of a dwelling or a room in a dwelling, said locking furniture comprising a first partφg.l), consisting of a plate part provided with a projection(l), said projection being designed to engage with a recess in the frame for an entrance region and being provided with first engagement means(2); and a second part provided with a groove(3), said groove being designed to receive the first part so that the second part is attached to the first part, and said second part being provided with second engagement means designed to engage with the first engagement means on the first p rt; in which locking furniture an alarm, consisting of a trigger and a signaller, is added; characterized with a kind of built in switch device, which has a moveable part, e.g. a ball(5), that reaches into the groove(3) in the second part and works when the first part is sliding into the groove in the second part, and pushes the moveable part out of the groove (fig.4- 5) and (fig.6-7)which causes a connection of the electric power.

2. Locking furniture according to claim 1. characterized in that the moveable part is elastic effected and of this comes back to starting position when the first part of the locking furniture is removed from the groove in the second part; which causes the electrical power to be switched off.

3. Locking furniture according to previous claims, characterised in that the elastic part(9) of the invention is current connection.

4. Locking furniture according to previous claims, characterised in that the live connection to one of the battery poles is shaped to funktion as battery-holder(7) and elastic part(9)

5. Locking furniture according to previous claims, characterised in that the switch device essentially consists of a plate (e.g. metal) serving as live connection, elastic part and battery holder.

6. Locking furniture according to previous claims characterised in that the sliding of the first part along the groove in the hold is transmittet to the elastic part by, essentially, a ball.