JP5313464B2 - Door guard device - Google Patents

Description

  The present invention relates to a door guard device that can lock a door, such as a door, in a half-open state, and in particular, prevents a door from entering and exiting by making it protrude when a locking pin is used. It is related with the door guard apparatus which can improve.

2. Description of the Related Art Conventionally, a door guard device is installed as a security chain for crime prevention separately from a cylinder lock attached to a door body for crime prevention such as a front door.
As shown in FIG. 34, for example, the door guard device includes a locking arm 2 that is swingably attached to the inside of the front end of the door D, and a slide groove of the locking arm 2 that is fixed to the door frame F side. 3 is provided with a locking pin 5 that is slidably hooked by a head.
When the door D is opened with the locking pin 5 inserted into the slide groove 3 of the locking arm 2, the door D can be opened only within the range in which the locking pin 5 moves through the slide groove 3. It can be locked in a half-open state.

  However, in the conventional door guard device, since the locking pin 5 protrudes from the door frame F to the inside thereof, there is a problem that when a person enters or exits, it hits a body or a load, and the appearance of the entrance is impaired. .

  In view of the problems of the above-described conventional door guard device, the present invention can prevent the door from entering and exiting by automatically protruding when using the locking pin, and improve the appearance of the entrance. An object of the present invention is to provide a door guard device that can be used.

In order to achieve the above object, the door guard device according to the first aspect of the present invention is a door guard that swingably attaches a locking arm via a pedestal and that slidably holds a locking pin in a slide groove of the locking arm. In the apparatus, the locking pin is provided so as to be able to appear and retract in a seat, and the locking pin is retracted from the protruding state and retracted from the protruding state, depending on the position of the locking arm. A retracting mechanism for selectively retracting and retracting in the retracted state is provided , and the locking pin is pivotally mounted on the seat so as to be swingable, and is provided so as to protrude by swinging. A receiving pin which is provided so as to be able to protrude and retract by being biased and which makes the locking pin protrude and retracts via a rack and a pinion gear, a magnet provided at the tip of the receiving pin, and a locking arm On the door side of the base Vignetting, and faces the magnet seat pin closed position of the door, Door Guard apparatus characterized by comprising a magnet infested manipulate seat pin against the bias of said spring.

In order to achieve the same object, the door guard device according to the second aspect of the present invention attaches the locking arm through the pedestal so as to be swingable, and slidably holds the locking pin in the slide groove of the locking arm. In the door guard device to be stopped, the locking pin is provided so as to be able to protrude and retract in the seat, and the locking pin is engaged with the locking arm according to the position of the locking arm, and retracted from the protruding state. A retracting mechanism for selectively retracting in and out of the entering and retracting state is provided, and the locking pin is pivotally attached to the receiving seat so as to protrude by swinging, and the retracting mechanism is provided on the receiving seat. A first pinion gear that is urged by a spring so as to be rotatable and has a locking pin in a protruding state and a retracted state via a second pinion gear, a magnet provided in the first pinion gear, and a locking arm Pedestal, etc. Provided on the door side, facing the first pinion gear of the magnet closed position of the door, characterized in that the first pinion gear against the bias of the spring and a magnet operated to swing.

In order to achieve the same object, the door guard device according to the third aspect of the present invention attaches the locking arm so as to be swingable via the pedestal and slidably holds the locking pin in the slide groove of the locking arm. In the door guard device to be stopped, the locking pin is provided so as to be able to protrude and retract in the seat, and the locking pin is engaged with the locking arm according to the position of the locking arm, and retracted from the protruding state. A retracting mechanism for selectively retracting in and out of the entering and retracting state is provided, and the locking pin is pivotally attached to the receiving seat so as to protrude by swinging, and the retracting mechanism is provided on the receiving seat. A magnet biased by a spring and provided coaxially with the pivot shaft of the locking pin; provided on the door side of the locking arm pedestal, etc., facing the magnet at the door closing position; Swing the magnet against the bias Characterized by comprising a magnet.

According to the door guard device of the first to third aspects of the present invention, in the door guard device, the locking arm is swingably attached via the pedestal, and the locking pin is slidably hooked on the slide groove of the locking arm. The locking pin is provided so as to be able to protrude and retract in the seat, and the locking pin is disposed at the position of the locking arm, specifically, the position of the base on which the locking arm is swingably mounted or the locking arm. The locking pin is normally retracted by providing a retracting mechanism that allows the locking arm to selectively move in and out of the protruding state where the locking arm is hooked and the retracted state where the locking arm is retracted. It can be automatically protruded when used, so that it does not get in the way of entry and exit, and the appearance of the entrance can be improved.

Then, a magnet provided on the seat side, provided on the lock arm, facing the magnet provided on the receiving seat side closed position of the door and the facing, the magnet against the bias of the spring by providing a magnet to manipulate, projecting locking pin can cause retracts.

  Embodiments of the door guard device of the present invention will be described below with reference to the drawings.

1 through 4 show a first reference example of de Agado device.
As shown in FIG. 21, this door guard device is fixed to the door frame F side with a locking arm 2 swingably attached to the inside of the front end portion of the door D via a pedestal 1. The slide groove 3 is provided with a large-diameter head 4 and a latch pin 5 that is slidably latched.
The door guard device is provided with a locking pin 5 so as to be able to protrude and retract in the seat 6, a protruding state in which the locking pin 5 is hooked on the locking arm 2, and a retraction that is retracted from the protruding state. An in / out mechanism for selectively in / out depending on the state is provided.

In this reference example, the retracting mechanism is provided so that it can be retracted by urging the receiving seat 6 in the return direction. A receiving pin 7 that is in a retracted state, and a pressing piece 8 that is provided on the locking arm 2 and pushes the receiving pin 7 by raising the locking arm 2 at the door closing position.

As shown in FIG. 3, the locking arm 2 is formed of a U-shaped metal rod having a slide groove 3 at the center, and a pair of swing shafts 21 pivotally supported by the base 1 are provided at the base thereof. It protrudes integrally on the outside.
A pressing piece 8 having a substantially triangular cross section is provided on the front side of the lower base of the locking arm 2, and the pressing piece 8 is a door as shown in FIG. The seat pin 7 can be pushed in by raising the locking arm 2 at about 90 ° in the closed position.

The locking pin 5 is disposed so as to be movable in the axial direction on a seat 6 embedded in the door frame.
A rack 51 is formed on the lower surface of the locking pin 5, and the rack 51 meshes with a pinion gear 61 pivotally supported on the receiving seat 6 under the locking pin 5.
Under the pinion gear 61, a receiving pin 7 having a rack 71 formed on the upper surface is disposed. The receiving pin 7 is movable in the axial direction to the receiving seat 6 with the head 4 protruding. It is arranged.
The seat pin 7 is elastically supported by a spring 73 disposed inside the seat, and returns to its original position even if it is pushed by the pressing piece 8 of the locking arm 2.
Note that the positions of the locking pin 5 and the receiving pin 7, the retraction distance of the receiving pin 7 and the protruding distance of the locking pin 5 can be changed by setting the gear.

Next, the operation of the retracting mechanism of the first reference example will be described.
When the door guard device is not used, the locking pin 5 is in the retracted state as shown in FIG.
When using the door guard device, as shown in FIG. 1 (b), when the door is closed, if the locking arm 2 is raised about 90 ° to hang on the locking pin 5, the pressing of the locking arm 2 is performed. The piece 8 pushes the seat pin 7.
When the receiving pin 7 is pushed in, the rack 71 of the receiving pin 7 rotates the pinion gear 61 of the receiving seat 6, and the locking pin 5 with which the rack 51 is engaged is moved to the pinion gear 61 to be in a protruding state.
Further, after the locking arm 2 is removed from the locking pin 5, as shown in FIG. 1A, the locking pin is moved via the racks 51, 71 and the pinion gear 61 by the return force of the receiving pin 7. 5 can be automatically withdrawn.

As shown in the first reference example, the retracting mechanism is provided so as to be retractable by urging the receiving seat 6 in the returning direction, and by retracting, the locking pin 5 is brought into a protruding state and returned. A receiving pin 7 that brings the locking pin 5 into a retracted state, and a pressing piece 8 that is provided on the locking arm 2 and pushes the receiving pin 7 by raising the locking arm 2 at the door closing position. Accordingly, the receiving pin 7 is pressed by the pressing piece 8 in the raising operation when the locking arm 2 is hooked on the locking pin 5, the receiving pin 7 is retracted to protrude the locking pin 5, and After the arm 2 is removed, the locking pin 5 can be retracted by the return force of the receiving pin 7.

5 to 8 show a second reference example of de Agado device.
As shown in FIG. 21, this door guard device is fixed to the door frame F side with a locking arm 2 swingably attached to the inside of the front end portion of the door D via a pedestal 1. The slide groove 3 is provided with a large-diameter head 4 and a latch pin 5 that is slidably latched.
The door guard device is provided with a locking pin 5 so as to be able to protrude and retract in the seat 6, a protruding state in which the locking pin 5 is hooked on the locking arm 2, and a retraction that is retracted from the protruding state. An in / out mechanism for selectively in / out depending on the state is provided.

In this reference example, the retracting mechanism is provided so that it can be retracted by urging the receiving seat 6 in the return direction. The receiving pin 7 to be in the retracted state, the magnet 72 provided at the tip of the receiving pin 7, the locking arm 2, and the locking pin 2 by raising the locking arm 2 at the door closing position. 7 magnets 72 and the same-polarity magnets 22 facing each other.

As shown in FIG. 7, the locking arm 2 is made of a U-shaped metal rod having a slide groove 3 at the center, and a pair of swing shafts 21 pivotally supported by the base 1 are provided at the base thereof. It protrudes integrally on the outside.
A strip-shaped magnet 22 that repels the magnet 72 of the receiving pin 7 is provided on the front side of the lower base of the locking arm 2, and the strip-shaped magnet 22 is in the closed position of the door. By raising the locking arm 2 by about 90 °, it faces the magnet 72 of the seat pin 7, and the seat pin 7 is retracted by the repulsive magnetic force.

The locking pin 5 is disposed so as to be movable in the axial direction on a seat 6 embedded in the door frame.
A rack 51 is formed on the lower surface of the locking pin 5, and the rack 51 meshes with a pinion gear 61 pivotally supported on the receiving seat 6 under the locking pin 5.
Under the pinion gear 61, a receiving pin 7 having a rack 71 formed on the upper surface is disposed. The receiving pin 7 moves in the axial direction to the receiving seat 6 with the magnet 72 at the tip protruding. It is arranged to be possible.
The seat pin 7 is elastically supported by a spring 73 disposed inside the seat, and returns to its original position if the repulsive force of the magnet 72 and the magnet 22 disappears even if the seat pin 7 is retracted.

Next, the operation of the retracting mechanism of the second reference example will be described.
When the door guard device is not used, the locking pin 5 is in the retracted state as shown in FIG.
When using the door guard device, as shown in FIG. 5B, when the door is closed, the magnet 22 of the locking arm 2 is received when the locking arm 2 is hung on the locking pin 5 as shown in FIG. The seat pin 7 faces the magnet 72 and the seat pin 7 is retracted by the repulsive force of the magnet of the same polarity.
When the receiving pin 7 is retracted, the rack 71 of the receiving pin 7 rotates the pinion gear 61 of the receiving seat 6, and the locking pin 5 that meshes with the rack 51 is moved to the pinion gear 61 to be in the protruding state.
Further, after the locking arm 2 is removed from the locking pin 5, as shown in FIG. 5A, the locking pin is moved via the racks 51, 71 and the pinion gear 61 by the return force of the receiving pin 7. 5 can be automatically withdrawn.

As shown in the second reference example, the retracting mechanism is provided so as to be retractable by urging the receiving seat 6 in the return direction, and by retracting, the locking pin 5 is brought into a protruding state and returned. A receiving pin 7 that brings the locking pin 5 into a retracted state, a magnet 72 provided at the tip of the receiving pin 7, and a locking arm 2 that raises the locking arm 2 at the door closing position. Thus, by providing the magnet 22 of the same polarity facing the magnet 72 of the receiving pin 7, the magnet 22 of the same polarity is faced by the raising operation when the locking arm 2 is hooked on the locking pin 5. The receiving pin 7 is retracted by the repulsive force to protrude the locking pin 5, and after the locking arm 2 is removed, the locking pin 5 can be retracted by the return force of the receiving pin 7. it can.

In FIGS. 9 to 12 show a third reference example of de Agado device.
As shown in FIG. 21, this door guard device is fixed to the door frame F side with a locking arm 2 swingably attached to the inside of the front end portion of the door D via a pedestal 1. The slide groove 3 is provided with a large-diameter head 4 and a latch pin 5 that is slidably latched.
The door guard device is provided with a locking pin 5 so as to be able to protrude and retract in the seat 6, a protruding state in which the locking pin 5 is hooked on the locking arm 2, and a retraction that is retracted from the protruding state. An in / out mechanism for selectively in / out depending on the state is provided.

In this reference example, the retracting mechanism is different from the magnet 52 provided at the tip of the locking pin 5 and the pedestal 1 of the locking arm 2 and facing the magnet 52 of the locking pin 5 at the door closing position. A pole magnet 11 and a magnet 12 of the same polarity provided on the base 1 of the locking arm 2 and facing the magnet 52 of the locking pin 5 at a position where the door is opened are provided.

As shown in FIG. 11, the locking arm 2 is formed of a U-shaped metal rod having a slide groove 3 at the center, and a pair of swing shafts 21 pivotally supported by the base 1 are provided at the base thereof. Projecting integrally.
As shown in FIGS. 9B and 9C, the locking pin 5 protrudes from the base 1 of the locking arm 2 by facing and attracting the magnet 52 of the locking pin 5 at the door closing position. As shown in FIG. 9 (a), the opposite polarity magnet 11 to be in a state and the magnet 52 of the locking pin 5 are repelled by facing the magnet 52 at a position where the door is opened, so that the locking pin 5 is retracted. And a magnet 12 of the same polarity.
As shown in FIGS. 11 (a) and 11 (d), the different polarity magnet 11 is formed of a rod-shaped member extending from the pedestal 1 in the door moving direction. It is fixed to the tip of the magnet 11.

The locking pin 5 is disposed so as to be movable in the axial direction on a seat 6 embedded in the door frame.
The locking pin 5 has a magnet 52 embedded in the head 4 thereof, and at the end of its shaft portion, slides a groove 62 of the receiving seat 6 to regulate the protruding length of the locking pin 5. A stop pin 53 is projected.
In this case, by providing a gap between the magnet 52 of the locking pin 5 and the magnets 11 and 12 of the pedestal 1 or by providing the buffer rubber 9, it is possible to mitigate the impact at the time of protrusion.
As shown in FIGS. 12D to 12E, the buffer rubber 9 can also be provided at the root of the head 4, the rear end surface of the shaft portion, both ends of the groove 62 of the seat 6, and the like.

Next, the operation of the haunting mechanism of the third reference example will be described.
When the door is opened, the locking pin 5 is in the retracted state as shown in FIG.
When the door guard device is used, as shown in FIG. 9B, when the door is to be closed, the magnet 11 of the different polarity of the base 1 faces the magnet 52 of the locking pin 5 immediately before the door is closed. The locking pin 5 is brought into the protruding state by the attractive force of the magnets 11 and 52.
In this state, as shown in FIG. 9 (c), the locking arm 2 is raised about 90 ° and hooked onto the locking pin 5.
After the locking arm 2 is removed from the locking pin 5, as shown in FIG. 9A, when the door is opened, the magnet 12 having the same polarity of the base 1 is connected to the magnet 52 of the locking pin 5. Face each other and the locking pin 5 is automatically retracted by the repulsive force of the magnets 12 and 52.

As shown in the third reference example, a protrusion / extraction mechanism is provided on the magnet 52 provided at the tip of the locking pin 5 and on the pedestal 1 of the locking arm 2, and the magnet 52 of the locking pin 5 at the door closing position. And a magnet 12 of the same polarity which is provided on the base 1 of the locking arm 2 and faces the magnet 52 of the locking pin 5 at a position where the door is opened. In the closed position of the door where 2 is hooked on the locking pin 5, the locking pins 5 are projected by the attracting magnets 11, 52, and after the locking arm 2 is removed, the magnets 12, 52 facing each other at the position where the door is opened. The locking pin 5 can be retracted by the repulsive force.

In FIGS. 13 to 15 show a fourth reference example of de Agado device.
This door guard device is a modification of the structure on the side of the locking pin of the third reference example, and the locking pin 5 is pivotally attached to the receiving seat 6 so as to protrude by swinging upright. .
The locking pin 5 has a magnet 52 embedded in the head 4 thereof, and a shaft portion is pivotally mounted on the receiving seat 6 so as to be retracted by falling down so that the half of the receiving seat 6 is buried. For example, when it swings and stands up at 70 to 90 °, it enters a protruding state.
As shown in FIGS. 14 to 15, the receiving seat 6 is provided with a recess 63 for receiving the locking pin 5, and a portion for receiving the head 4 of the locking pin 5 in the recess. A buffer rubber 9 is provided.

As in the fourth reference example, the locking pin 5 is pivotally attached to the receiving seat 6 so as to protrude by swinging up and down, thereby reducing the thickness of the receiving side, and the locking pin. Since it is not necessary to embed 5, it can be easily installed on the door or door frame.
Other configurations and operations of the fourth reference example is the same as the third embodiment.

Figure 16 shows a fifth reference example of de Agado device.
As shown in FIG. 21, this door guard device is fixed to the door frame F side with a locking arm 2 swingably attached to the inside of the front end portion of the door D via a pedestal 1. The slide groove 3 is provided with a large-diameter head 4 and a latch pin 5 that is slidably latched.
The door guard device is provided with a locking pin 5 so as to be able to protrude and retract in the seat 6, a protruding state in which the locking pin 5 is hooked on the locking arm 2, and a retraction that is retracted from the protruding state. An in / out mechanism for selectively in / out depending on the state is provided.

The locking pin 5 is pivotally attached to the receiving seat 6 so as to swing on a horizontal plane, and is brought into a protruding state by swinging toward the door D side.
A pinion gear 54 that meshes with a rack 71 of a receiving pin 7 that will be described later is provided at the pivotally attached portion of the locking pin 5, and the pinion gear 54 rotates by the movement of the rack 71, so that the locking pin 5 is swung between a protruding state and a retracted state.

The retracting mechanism is provided so as to be able to appear and retract by urging the receiving seat 6 in the return direction, and when the retracting mechanism is retracted, the engaging pin 5 is brought into a protruding state and is returned to be retracted. And a pressing piece 8 which is provided on the base 1 and pushes the receiving pin 7 to the retracted side at the closed position of the door D.
The receiving pin 7 protrudes from the door frame F to the door D side and is pushed in the thickness direction of the door D when the pressing piece 8 on the door D side comes into contact therewith.

The receiving pin 7 is provided with a rack 71 that rotates the pinion gear 54 of the locking pin 5 in the pushing direction of the receiving pin 7.
As shown in FIG. 17, the rack 71 is urged by a spring 74 in the pushing direction, and is supported by the receiving pin 7 so that it can slide within a certain range on the opposite side to the pushing direction. .
As a result, as shown in FIG. 17B, even when the door D is slightly opened, the rack 71 is held in the pushed-in position, and the protruding state of the locking pin 5 is maintained. It is designed so that it can be smoothly attached to and detached from 5.

Thus, in the door guard device of the fifth reference example, the locking pin 5 is pivotally attached to the receiving seat 6 so as to protrude by the swinging, and the retracting mechanism is returned to the receiving seat 6. A seat pin 7 that is provided so as to be able to appear and retract by being urged in the direction and retracted to bring the locking pin 5 into a projecting state and return to make the locking pin 5 into a retracted state. Provided with a pressing piece 8 that pushes the receiving pin 7 in the closed position of the door D. When the door D is closed, the receiving pin 7 is pressed by the pressing piece 8 and the receiving pin 7 is retracted. Thus, after the locking pin 5 is protruded and the locking arm 2 is removed and the door D is opened, the locking pin 5 can be retracted by the returning force of the receiving pin 7.

  Further, a rack 71 for rotating the pinion gear 54 provided on the locking pin 5 is provided in the receiving pin 7 in the pushing direction, and the rack 71 is urged in the pushing direction and supported so as to be slidable within a predetermined range. Thus, even when the door D is slightly opened, the rack 71 can be held in the pushed-in position so that the protruding state of the locking pin 5 can be maintained, whereby the locking arm 2 can be released from the locking pin 5. It can be done smoothly.

FIG. 18 shows a first embodiment of the door guard device of the present invention.
As shown in FIG. 21, this door guard device is fixed to the door frame F side with a locking arm 2 swingably attached to the inside of the front end portion of the door D via a pedestal 1. The slide groove 3 is provided with a large-diameter head 4 and a latch pin 5 that is slidably latched.
The door guard device is provided with a locking pin 5 so as to be able to protrude and retract in the seat 6, a protruding state in which the locking pin 5 is hooked on the locking arm 2, and a retraction that is retracted from the protruding state. An in / out mechanism for selectively in / out depending on the state is provided.

The locking pin 5 is pivotally attached to the receiving seat 6 so as to swing on a horizontal plane, and is brought into a protruding state by swinging toward the door D side.
A pinion gear 54 that meshes with a rack 71 of a receiving pin 7 that will be described later is provided at the pivotally attached portion of the locking pin 5, and the pinion gear 54 rotates by the movement of the rack 71, so that the locking pin 5 is swung between a protruding state and a retracted state.

  The retracting mechanism is provided so as to be able to appear and retract by urging the receiving seat 6 in the return direction, and when the retracting mechanism is retracted, the engaging pin 5 is brought into a protruding state and is returned to be retracted. A receiving pin 7, a magnet 72 provided at the tip of the receiving pin 7, a magnet 12 of the same polarity provided on the base 1 and facing the magnet 72 of the receiving pin 7 at the closed position of the door D It has.

  The receiving pin 7 is supported by the receiving seat 6 so as to slide horizontally along the inner surface of the door frame F, and a rack 71 for rotating the pinion gear 54 of the locking pin 5 is integrally provided.

Thus, in the door guard device of the first embodiment, the locking pin 5 is pivotally attached to the receiving seat 6 so as to be protruded by the swinging, and the retracting mechanism is returned to the receiving seat 6. And a receiving pin 7 which is provided so as to be able to protrude and retract by being urged in the direction, and which makes the locking pin 5 project by retreating and makes the locking pin 5 retract by returning. Since the magnet 72 provided at the tip of the seat pin 7 and the magnet 12 of the same polarity which is provided on the base 1 and faces the magnet 72 of the seat pin 7 at the closed position of the door D are provided, the door D is closed. As a result, the magnets 12 and 72 having the same polarity face each other, and the receiving pin 7 is retracted by the repulsive force of the magnets 12 and 72 to protrude the locking pin 5, and the locking arm 2 is removed to open the door D. After that, the locking pin 5 is retracted by the returning force of the receiving pin 7. It is possible.

FIG. 19 shows a second embodiment of the door guard device of the present invention.
This door guard device is used so as to attract the magnets of the door guard device of the first embodiment with different poles.
That is, in this door guard device, the retracting mechanism is provided so that it can be retracted by urging the seat 6 in the retracting direction, and the locking pin 5 is protruded by protruding to engage and retract. A receiving pin 7 that brings the locking pin 5 into a retracted state, a magnet 72 provided at the tip of the receiving pin 7, a magnet 72 provided on the base 1, and the magnet 72 of the receiving pin 7 in the closed position of the door D And a magnet 11 of different polarity facing each other.

The receiving pin 7 is urged in the retracting direction by a tension spring 75 and is supported by the receiving seat 6 so as to slide horizontally along the inner surface of the door frame F. The pinion gear of the locking pin 5 A rack 71 for rotating 54 is provided integrally.
In this case, the rack 71 of the receiving pin 7 meshes with the pinion gear 54 of the locking pin 5 via another independent pinion gear 55.
Thereby, the receiving pin 7 can project the locking pin 5 by projecting, and can retract the locking pin 5 by retracting.

As described above, in the door guard device of the second embodiment, the locking pin 5 is pivotally attached to the receiving seat 6 so as to protrude by the swinging, and the retracting mechanism is retracted to the receiving seat 6. A receiving pin 7 which is provided so as to be able to move in and out by being urged in an entering direction, and which makes the locking pin 5 project by being projected and retracted by retreating, A locking arm is provided with a magnet 72 provided at the tip of the receiving pin 7 and a magnet 11 of a different polarity provided on the base 1 and facing the magnet 72 of the receiving pin 7 at the closed position of the door D. In the closed position of the door D where 2 is hooked on the locking pin 5, the locking pin 5 is projected by the attracting magnets 11, 72, and after the locking arm 2 is removed and the door D is opened, the seat pin 7 is returned. The locking pin 5 can be retracted by the force to be applied.

FIG. 20 shows a third embodiment of the door guard device of the present invention.
This door guard device is a modification of the structure of the locking pin 5 side of the first embodiment or the second embodiment, and the locking pin 5 is pivotally mounted so as to be swingable parallel to the inner surface of the door frame F. Thus, the locking pin 5 is retracted to a position that does not obstruct the inner surface of the door frame F.

As the appearance mechanism, the same mechanism as in the first embodiment or the second embodiment can be used.
In this case, although not shown in the figure, the pinion gear is provided at the upper or lower portion of the pivoting portion of the locking pin 5.
The seat pin can be provided above or below the pinion gear so as to slide horizontally along the inner surface of the door frame F.

As described above, the door guard device of the third embodiment pivots the locking pin 5 so as to be swingable in parallel with the inner surface of the door frame F, so that the locking pin 5 is obstructed along the inner surface of the door frame F. It is possible to retreat to a position where it is difficult to become.

21 to 23 show a fourth embodiment of the door guard device of the present invention.
In this door guard device, the locking pin 5 is pivotally attached to the receiving seat 6 so as to be protruded and retracted by swinging, and the retracting mechanism is provided on the locking pin side and is engaged by moving. A magnet 52 for swinging the locking pin 5 and a magnet 13 on the pedestal 1 side that is moved by acting on the locking pin-side magnet 52 at the door closing position are provided.

The locking pin 5 is pivotally attached to the receiving seat 6 so as to swing on a horizontal plane, and is brought into a protruding state by swinging toward the door D side.
A pinion gear 54 that meshes with a pinion gear 55 that is pivotally attached to the receiving seat 6 on the door frame side is provided at the pivot attachment portion of the locking pin 5, and the pinion gear 54 is provided on the door frame side. By rotating through the pinion gear 55, the locking pin 5 is swung between a protruding state and a retracted state.

A magnet 52 is partially embedded in the pinion gear 55 as a magnet on the side of the locking pin, and the pinion gear 55 is rotated by engaging with the magnet 13 on the side of the pedestal 1 having a different polarity at the door closing position. The pin 5 is swung from the retracted state to the protruding state.
In addition, a torsion spring (not shown) is disposed at the pivot portion of the pinion gear 55 or the locking pin 5. After the locking arm 2 is removed and the door is opened, the locking pin 5 is made of a magnet. Because it is released from the force, it automatically retreats by the force of this torsion spring.

24 to 26 show a fifth embodiment of the door guard device of the present invention.
As in the fourth embodiment, this door guard device is provided so that the locking pin 5 is pivotally mounted on the receiving seat 6 so as to swing out by swinging, and the retracting mechanism is provided on the locking pin side. And a magnet 52 that swings the locking pin 5 by moving, and a magnet 13 on the base 1 side that moves and acts on the magnet 52 on the locking pin side at the door closing position.

In this embodiment, the magnet 52 on the side of the locking pin is provided coaxially on the pivot shaft 56 of the locking pin 5 without using a pinion gear. The pivot shaft 56 is provided with a non-rotating serration 56a and a corner portion 56b.
In this case, as shown in FIG. 26 (e), the member of the locking pin side magnet 52 is not necessarily formed in a disk shape.
Further, a repulsive magnet having the same polarity can be used as the pedestal side magnet 13 by changing the arrangement position of the locking pin side magnet 52.

27 to 28 show a sixth embodiment of the door guard device of the present invention.
This door guard device is a modification of the structure of the locking pin 5 side of the fourth embodiment or the fifth embodiment, and the locking pin 5 is pivotally mounted so as to be swingable in parallel with the inner surface of the door frame. The locking pin 5 is retracted to a position that does not obstruct the inner surface of the door frame.

The intrusion mechanism can be the same as that of the fourth embodiment or the fifth embodiment, but in this embodiment, the magnet 52 on the side of the locking pin is coaxial with the pivoting portion of the locking pin 5. It is arranged on the door frame side.
The locking pin 5 swings from the retracted state to the substantially horizontal protruding state by attracting with the magnet 13 on the pedestal 1 side having a different polarity at the door closing position.
In this case, the retraction position of the locking pin 5 is upward or downward, and when it is below, it retracts due to gravity, and when it is above, it retracts due to a torsion spring or the like.
Also in the present embodiment, a repulsive magnet having the same polarity can be used as the pedestal side magnet 13 by changing the arrangement position of the locking pin side magnet 52.
In addition, as shown in FIG.28 (d), the member of the latching pin side magnet 52 does not necessarily need to be formed in a disk shape.

FIG. 29 shows a seventh embodiment of the door guard device of the present invention.
As in the sixth embodiment, this door guard device pivots the locking pin 5 so as to be able to swing in parallel with the inner surface of the door frame, so that the locking pin 5 is not obstructed along the inner surface of the door frame. I try to retreat to the position.

The same mechanism as in the sixth embodiment can be used as the intruding mechanism. However, in this embodiment, the magnet 52 on the side of the locking pin is arranged so as to be inserted into the pivoting portion of the locking pin 5. ing.
The locking pin 5 swings from the retracted state to the substantially horizontal protruding state by the action of the magnet 52 and the magnet 13 on the base 1 side at the door closing position.
In this case, the retraction position of the locking pin 5 is upward or downward, and when it is below, it retracts due to gravity, and when it is above, it retracts due to a torsion spring or the like.

30 to 32 show an eighth embodiment of the door guard device of the present invention.
As in the fourth and fifth embodiments, this door guard device is provided with a locking pin 5 pivotally attached to a receiving seat 6 so as to be protruded and retracted by swinging, and a retracting mechanism is provided. A magnet 52 that is provided on the stop pin side and swings the locking pin 5 by moving, and a magnet 13 on the base 1 side that moves by acting on the magnet 52 on the locking pin side at the door closing position. I have.

In this embodiment, the magnet 52 on the side of the locking pin is provided at a position facing the base side magnet 13 at the door closing position at the retracted position of the locking pin 5. It repels by facing and rocks the locking pin 5 from the retracted state to the protruding state.
In addition, a torsion spring (not shown) is provided at the pivotal portion of the locking pin 5, and after the locking arm 2 is removed and the door is opened, the locking pin 5 is released from the force of the magnet. Therefore, it automatically retracts by the force of this torsion spring.
In this case, by changing the angular position of the locking pin side magnet 52, a magnet that attracts a different polarity can be used as the pedestal side magnet 13.

The guard device of the eighth embodiment has the smallest number of parts, and can be designed easily regardless of whether the same-polarity magnet or different-polarity magnet is used. By adjusting this, the rocking of the locking pin 5 can be made more agile.

FIG. 33 shows a ninth embodiment of the door guard device of the present invention.
In this door guard device, as in the eighth embodiment, the locking pin 5 is pivotally attached to the seat 6 so as to swing and is provided so as to protrude and retract, and the retracting mechanism is provided on the locking pin side. And a magnet 52 that swings the locking pin 5 by moving, and a magnet 13 on the pedestal 1 side that moves and acts on the magnet 52 on the locking pin side at the closed position of the door.

Although the same mechanism as that in the eighth embodiment can be used as the retracting mechanism, in this embodiment, the magnet 52 on the locking pin side is disposed so as to be inserted into the proximal end portion of the locking pin 5. ing.
The remaining configuration of the present embodiment is the same as that of the eighth embodiment.

The guard device of the ninth embodiment has the smallest number of parts, and can be designed easily regardless of whether the same-polarity magnet or different-polarity magnet is used. By adjusting this, the rocking of the locking pin 5 can be made more agile.

As described above, in the door guard devices of the fourth to ninth embodiments, the locking pin 5 is pivotally attached to the receiving seat 6 so as to swing and is provided so as to protrude and retract. A magnet 52 that is provided on the pin side and moves the locking pin 5 by moving and a magnet 13 on the pedestal side that moves and acts on the locking pin side magnet 52 at the door closing position. Then, at the door closing position where the locking arm 2 is hooked on the locking pin 5, the locking pin 5 is projected by the acting magnet, and after the locking arm 2 is removed and the door is opened, the force of the magnet And the locking pin 5 can be retracted by a spring, gravity or the like.

Thus, in the door guard device of the first to ninth embodiments, the locking arm 2 is swingably attached via the base 1 and the locking pin 5 can be slid in the slide groove 3 of the locking arm 2. In the door guard device to be hooked to the door, the locking pin 5 is provided so as to be able to protrude and retract in the receiving seat 6, and the locking pin 5 is swung at the position of the locking arm 2, specifically, the locking arm 2. Depending on the position of the pedestal 1 that can be attached and the swinging position of the locking arm 2, the projecting state in which the locking arm 2 is hooked and the retreating state in which it retracts from the protruding state can be selectively moved in and out. By providing a mechanism, the locking pin 5 is not normally required to be retracted, and when the locking pin 5 is used to lock the locking arm 2, the locking pin 5 is protruded so as not to obstruct access. And look at the entrance It is possible to improve the example.

Above, changes the Door Guard device of the present invention has been described based on several embodiments, the present invention is not limited to the configuration described in the above embodiments as appropriate the structure without departing from the scope and spirit thereof can do.

  Since the door guard device of the present invention has a characteristic of preventing the entrance / exit by protruding when using the locking pin, and improving the appearance of the entrance, it is easy to use. It can be used widely and suitably as a quality door guard device.

Shows a first reference example of de Agado device is a front view showing (a) shows a state front view showing a closed state of the door, (b) it is that caused the locking arm. The locking pin and the seat are shown, (a) is a two-side view thereof, (b) is a sectional view showing a retracted state of the locking pin, and (c) is a sectional view showing a protruding state of the locking pin. The locking arm and the pedestal are shown, (a) is a front view thereof, (b) is a bottom view thereof, and (c) is a bottom view showing a state where the locking arm is raised. (A) is a two-view drawing of the seat, (b) is a three-view drawing of the locking pin, (c) is a three-view drawing of the receiving pin, and (d) is a two-view drawing of the pinion gear. The 2nd reference example of a door guard device is shown, (a) is a front view showing the state where a door was closed, and (b) is a front view showing the state where a lock arm was raised. The locking pin and the seat are shown, (a) is a two-side view thereof, (b) is a sectional view showing a retracted state of the locking pin, and (c) is a sectional view showing a protruding state of the locking pin. The locking arm and the pedestal are shown, (a) is a front view thereof, (b) is a bottom view thereof, and (c) is a bottom view showing a state where the locking arm is raised. (A) is a two-view drawing of the seat, (b) is a three-view drawing of the locking pin, (c) is a three-view drawing of the receiving pin, and (d) is a two-view drawing of the pinion gear. The 3rd reference example of a door guard device is shown, (a) is a front view which shows the state where a door opened, (b) is a partial section front view which shows the state where a door was closed, (c) is the state of (b) It is a partial cross section front view which shows the state which raised the latching arm from. The locking pin and the seat are shown, (a) is a two-side view thereof, (b) is a sectional view showing a retracted state of the locking pin, and (c) is a sectional view showing a protruding state of the locking pin. The locking arm and the pedestal are shown, (a) is a bottom view thereof, (b) is a front view thereof, (c) is a front view showing a state where the locking arm is raised, and (d) is a state where the locking arm is tilted down. It is a left view which shows a state. (A) is a two-sided view of the seat and the locking pin, (b) is a three-sided view of the locking pin, (c) is a two-sided view of the retaining pin, and (d) is a buffer rubber on the locking pin. The provided front view and (e) are three views of the seat. The 4th reference example of a door guard device is shown, (a) is a front view showing a state where the door is opened, (b) is a partially sectional front view showing a state where the door is closed, and (c) is a state shown in (b). It is a partial cross section front view which shows the state which raised the latching arm from. The locking pin and the seat are shown, (a) is a trihedral view showing the retracted state of the locking pin, and (b) is a trihedral view showing the protruding state of the locking pin. (A) is a 3rd view of a receiving seat, (b) is a 2nd view of a locking pin. A fifth reference example of a door guard device is shown, (a) is a plan view showing a state in which the door is closed, (b) is a plan view showing a state in which a locking arm is hooked on a locking pin, and (c) is an engagement. It is a top view which shows the state which removed the stop arm from the locking pin and opened the door. The receiving pin of the door guard apparatus is shown, (a) is a plan view showing a state in which the receiving pin is fully pushed in, (b) is a plan view showing a state in which the receiving pin is slightly returned. 1 shows a first embodiment of a door guard device of the present invention, (a) is a plan view showing a state in which a door is closed, (b) is a plan view showing a state in which a locking arm is hooked on a locking pin, (c) ) Is a plan view showing a state in which the locking arm is removed from the locking pin and the door is opened. 2 shows a second embodiment of the door guard device of the present invention, (a) is a plan view showing a state where the door is closed, (b) is a plan view showing a state where the locking arm is hooked on the locking pin, (c) ) Is a plan view showing a state in which the locking arm is removed from the locking pin and the door is opened. 3 shows a third embodiment of the door guard device of the present invention, (a) is a plan view showing a state in which the door is closed, (b) is a plan view showing a state in which the locking arm is hooked on the locking pin, (c) ) Is a plan view showing a state in which the locking arm is removed from the locking pin and the door is opened. The 4th Example of the door guard apparatus of this invention is shown, (a) is the front view which shows the state which closed the door, (b) is the bottom view. The locking pin of the door guard device is shown, (a) is a front view showing a state in which the door is opened, (b) is a bottom view in section, (c) is a front view showing a state in which the door is closed, (d). Is a bottom view of the same section. The door guard apparatus is shown, (a) is a two-view drawing of a locking pin, (b) is a front view of a pinion gear, and (c) is a three-view drawing of a seat. The 5th Example of the door guard apparatus of this invention is shown, (a) is a front view which shows the state which closed the door, (b) is the bottom view. The locking pin of the door guard device is shown, (a) is a front view showing a state in which the door is opened, (b) is a bottom view thereof, (c) is a front view showing a state in which the door is closed, (d) is a front view. It is the bottom view. The door guard device is shown, (a) is a two-side view of the locking pin, (b) is a two-side view of the locking pin-side magnet, (c) is a front view of the pivoting shaft of the locking pin, (d) Is a three-view drawing of the seat, and (e) is a two-view drawing showing another example of the locking pin side magnet. 6 shows a sixth embodiment of the door guard device of the present invention, wherein (a) is a front view showing a state in which the door is closed, (b) is a bottom view thereof, and (c) is a state when the door of the locking pin is closed. (D) is a bottom view, (e) is a front view showing a state when the door of the locking pin is opened, and (f) is a bottom view. The door guard device is shown, wherein (a) is a four-side view of a locking pin, (b) is a three-side view of a seat, (c) is a three-side view of a locking pin-side magnet, and (d) is a locking pin. It is a front view which shows the other example of a side magnet. 7 shows a seventh embodiment of the door guard device of the present invention, (a) is a front view showing a locking pin with the door opened, and (b) is a front view showing the door guard device with the door closed. FIG. The 8th Example of the door guard apparatus of this invention is shown, (a) is a front view which shows the state which closed the door, (b) is the bottom view. The locking pin of the door guard device is shown, (a) is a front view showing a state in which the door is opened, (b) is a bottom view thereof, (c) is a front view showing a state in which the door is closed, (d) is a front view. It is the bottom view. The door guard apparatus is shown, (a) is a two-view drawing of a locking pin, (b) is a three-view drawing of a seat. The 9th Example of the door guard apparatus of this invention is shown, (a) is the front view which shows the state which closed the door, (b) is the bottom view. Fig. 2 shows a state in which a conventional door guard device is attached, (a) is a front view showing a locking arm, (b) is a plan view showing a state where a locking pin is hooked on the locking arm, and (c) is a locking pin. (D) is a plan view showing a state in which the door guard device is unlocked and the locking pin is removed from the locking arm.

DESCRIPTION OF SYMBOLS 1 Base 11 Magnet of different polarity 12 Magnet of same polarity 13 Magnet 2 Locking arm 21 Oscillating shaft 22 Magnet 3 Slide groove 4 Head 5 Locking pin 51 Rack 52 Magnet 53 Retaining pin 54 Pinion gear 55 Pinion gear 56 Pivoting shaft 6 Seat 61 Pinion Gear 62 Groove 63 Recess 7 Seat Pin 71 Rack 72 Magnet 73 Spring 74 Spring 75 Pulling Spring 8 Pressing Piece 9 Buffer Rubber

Claims (3)

A locking arm is pivotably attached via a pedestal, and in the door guard device that slidably locks the locking pin in the slide groove of the locking arm, the locking pin is provided so as to be able to appear and retract in the seat. the locking pin, depending on the position of the locking arm, provided with protruding state hooking the locking arm, a retractable mechanism for selectively retractable into the oN state retreat to room access from the projecting state, engages A stop pin is pivotally attached to the seat so that it can swing and is provided so as to protrude by swinging, and a retracting mechanism is provided so that it can be retracted by being biased by a spring, via a rack and a pinion gear. , A receiving pin that brings the locking pin into a protruding state and a retracted state, a magnet provided at the tip of the receiving pin, and a locking arm that is provided on the door side such as a pedestal, and is received at the door closing position. Facing the pin magnet, front Door Guard device being characterized in that a magnet infested manipulate seat pin against the spring bias of the. A locking arm is pivotably attached via a pedestal, and in the door guard device that slidably locks the locking pin in the slide groove of the locking arm, the locking pin is provided so as to be able to appear and retract in the seat. the locking pin, depending on the position of the locking arm, provided with protruding state hooking the locking arm, a retractable mechanism for selectively retractable into the oN state retreat to room access from the projecting state, engages A stop pin is pivotally mounted on the seat so as to be swingable, and is provided so as to protrude by swinging, and a retracting mechanism is provided on the seat so that it can be rotated by a spring and can be rotated via a second pinion gear. The first pinion gear with the locking pin protruding and retracted, the magnet provided on the first pinion gear, and the first pinion gear provided on the door side such as the base of the locking arm, at the door closing position. With magnet Facing, Door Guard apparatus characterized by comprising a magnet operated to swing the first pinion gear against the bias of said spring. A locking arm is pivotably attached via a pedestal, and in the door guard device that slidably locks the locking pin in the slide groove of the locking arm, the locking pin is provided so as to be able to appear and retract in the seat. the locking pin, depending on the position of the locking arm, provided with protruding state hooking the locking arm, a retractable mechanism for selectively retractable into the oN state retreat to room access from the projecting state, engages A stop pin is pivotally attached to the receiving seat so that it can swing and is provided so as to protrude by swinging, and a retracting mechanism is provided on the receiving seat by a spring and provided coaxially with the pivoting shaft of the locking pin. And a magnet that is provided on a door side such as a base of a locking arm, faces the magnet at a door closing position, and swings the magnet against the bias of the spring . A door guard device characterized by that.

Images