JPH06948Y2 - Door for pets - Google Patents

Description

[Detailed Description of the Invention] (Industrial field of application) The present invention relates to a pet door, and more specifically, only pets that are kept can freely enter and leave between indoors and outdoors. Regarding doors for pets.

(Prior Art) When raising a pet, for example, a cat, a door is required so that the cat can freely enter and leave between indoors and outdoors.

Conventionally, as a door for pets such as cats, one end is attached with a hinge etc. to the opening of the frame body that serves as an entrance and exit for pets so that the wind that enters from outside can be blocked and the pets can freely enter and exit. There is one in which a door is provided so that the other end can be rotated in both directions in and out.

(Problems to be solved by the invention) According to this pet door, the pet can freely press in and out between the outdoors by pressing the door with the head, etc. Since it can be shielded, the efficiency of indoor heating and cooling can be maintained.

However, not only the pets that are kept but also stray cats, etc. may enter the indoors at the door for pets.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a pet door for preventing pets and the like from entering a room and preventing stray cats from entering the room.

(Means for Solving the Problem) The present inventor arrived at the present invention as a result of studying that it was effective to open and close the door using magnetism in order to achieve the above object.

That is, according to the present invention, one end of the door provided in the opening of the frame is rotated in the pressing direction of a pet such as a cat so that the pet can pass through the opening of the frame. A reciprocating movement in the direction of gravity, a bar rod that constantly contacts both the frame and the door by its own weight to prevent rotation of the door to at least one of the door, When moving, the electromagnet device is moved by moving the lever rod against gravity to release the rotation blocking of the door by the lever rod, and the electromagnet device is energized by a permanent magnet provided on a pet collar or the like. A pet door, characterized in that it is provided with a switch.

In addition, one end of the door provided in the opening of the frame rotates in the pressing direction of a pet such as a cat, and the pet door that allows the pet to pass through the opening of the frame has a gravity direction. A reciprocating rod, which normally contacts both the frame and the door by its own weight to prevent rotation to at least one of the door, and the rod or the rod. First provided on one of the frames
The permanent magnet is provided corresponding to the first permanent magnet on one of the bar and the frame body where the first permanent magnet is not provided, and repels the first permanent magnet when energized. , An electromagnet for moving the lever rod against gravity to release the rotation blocking of the door by the lever rod, and a switch for energizing the electromagnet by a second permanent magnet provided on a pet collar or the like. With this structure, the first permanent magnet attracts the electromagnet when the electromagnet is not energized, so that the stick rod can reliably prevent the door from rotating.

(Operation) According to the pet door of the present invention, when the pet being put in and out, the switch is closed by the approach of the permanent magnet attached to the pet via a collar or the like,
The electromagnet device is energized. At that time, the electromagnet device is activated to move the lever rod against gravity so that the door rod is prevented from being turned.

As a result, only breeding pets with permanent magnets can freely move in and out.

On the other hand, a breeding pet with a permanent magnet left the door,
When the electromagnet device is no longer energized, the lever will naturally descend due to its own weight, and quickly and appropriately contact both the frame and the door when the door is in the closed state. Is surely prevented from turning to at least one side. Therefore, it is possible to reliably prevent a stray cat or the like without a permanent magnet from entering.

In addition, when the present invention is implemented, when the electromagnet is energized, it is only when the pet that is raising it goes in and out, so the power consumption is extremely low, so dry batteries can be used and the door can be opened. It can be provided at any place.

(Embodiment) A preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

FIG. 1 is a cross-sectional view showing the structure of a door for a cat according to the present invention.

A door 12 is provided at an upper part inside the opening of the frame body 10 forming an opening through which a cat can go in and out by two hinges 13 so that the other end is rotatable about one end of the door 12 in both indoor and outdoor directions. Has been.

A tie rod 14 that prevents the door 12 from rotating indoors is rotatably provided about a shaft 18 provided in the frame 10.

A first permanent magnet 16 is fixedly attached to the stem rod 14.

The electromagnet 20 having the iron core 21 to which the first permanent magnet 16 fixed to the tie rod 14 is joined in order to prevent the tie rod 12 from rotating toward the indoor side is fixed to the frame body 10. .

The push button switch 22 and the power source 26 of the electromagnet 20 are wired so as to have magnetism that repels the first permanent magnet 16 when the electromagnet 20 is energized.

Third permanent magnet 24 for opening and closing the push button switch 22
Is supported by a leaf spring 25 and can respond to the magnetic force of a third permanent magnet 32 attached to the cat collar 30 shown in FIG.

A dry battery is used as the power supply 26 in this embodiment, and the push button switch 22 that closes with a small pressing force is used as the switch.

In the pet door according to the present embodiment, as shown in FIG. 1, when the cat presses the door 12 from the indoor side to the outdoor side, the door 12 freely rotates and opens, and the cat freely moves. You can go outdoors from indoors.

On the other hand, with respect to the direction in which the cat enters from the outdoors to the interior, the first permanent magnet fixed to the lever is the iron core 2 of the electromagnet 20.
By joining the door 1 to the door 1, the shinbar 14 reliably prevents the door 12 from rotating toward the indoor side.

In this case, when the cat having the second permanent magnet 32 attached to the collar 30 or the like approaches the entrance door from the outdoors, the door 12 can be turned to the indoor side.

That is, as shown in FIG. 3, when the N pole of the second permanent magnet 32 attached to the cat approaches the N pole of the third permanent magnet 24, they repel each other and the third permanent magnet 24 Pushes the push button switch 22.

As a result, the electromagnet 20 is energized from the power source 26, and the upper end of the electromagnet 20 has an N-pole magnetism that repels the N-pole of the first permanent magnet 16.

Since the first permanent magnet 16 is moved upward by the repulsive force with the electromagnet 20, the stick rod 14 is also moved together with the first permanent magnet 16, and the stick 12 causes the door 12 to move. The rotation prevention is released.

Therefore, the door 12 can also rotate in the indoor direction, and the second
Only cats with permanent magnets are allowed to enter indoors freely.

In addition, it is the first to prevent the door 12 from rotating toward the indoor side.
Since the permanent magnet 16 and the iron core 21 are securely connected to each other and no electric power is required to intervene, the door 12 is surely prevented from rotating toward the indoor side regardless of whether or not electric power is supplied. Therefore, stray cats and the like cannot invade under any circumstances.

Further, since the electromagnet 20 is energized only when the pet kept is indoors, the power consumption is extremely small. Therefore, a dry battery can be used as the power source 26 as in the present embodiment.

A modification of the embodiment shown in FIG. 1 described so far, and another embodiment of the present invention in which the lever rod 14 is rotatable in a plane formed in equilibrium in the direction in which the cat moves in and out, It is shown in FIG.

FIG. 4 is a vertical cross-sectional view of the pet inlet / outlet, in which the shinbar bar 14 rotates about a shaft 18 having one end pivotally mounted,
At the other end, a portion that prevents the door 12 from rotating is provided.

Further, the first permanent magnet is fixed to the harness bar 14 in the same manner as the embodiment of FIG. 1, and is arranged at a position where it can be coupled to the iron core 21 of the electromagnet 20.

The hinge 1 is the part of the stem bar 14 that prevents the door 12 from rotating.
It is set so as to prevent the rotation of the door 3, so that the rotation of the door 12 can be prevented more preferably.

Furthermore, according to the structure of the door for pets shown in FIG. 4,
It is also possible to appropriately arrange the plurality of burr bars 14 to reliably prevent the door 12 from rotating.

It should be noted that, as shown in FIGS. 1 and 4, it is preferable that the sheltered bar 14 be operated so as to prevent the rotation of the door 12 from the upper portion of the opening of the frame body 10 forming the doorway.

As described above, in the embodiments of FIGS. 1 and 4, the case where the first permanent magnet 16 is repulsed and moved by the electromagnet 20 has been described. However, the first permanent magnets shown in these embodiments are described. 16 is replaced by the electromagnet 20, and the electromagnet 20 is replaced by the permanent magnet 16, and the first permanent magnet 16 repels and moves the electromagnet 20 fixed to the lever rod 14. The effect is obtained.

Further, in order to prevent the rotation of the door 12 more reliably, a plurality of stick bars 14 and a plurality of first permanent magnets 16 may be used in combination.

In the above embodiment, the stick rod is moved in the direction of gravity by utilizing the attraction / repulsion between the first permanent magnet and the electromagnet, but the stick rod may be moved by the same principle. That is, a solenoid rod, which is an electromagnet device having a moving portion that moves according to the principle of an electromagnet, is connected to a tie rod, and the solenoid is energized as in the above-described embodiment to move the tie rod against gravity. It is also possible to cancel the rotation blocking of the door by the burr bar.

An urging member such as a spring can be used to return the lever to the position that prevents the entrance / exit door from rotating, but gravity is used as in the embodiment shown in FIGS. 1 and 4. Is preferred.

This is not only the case where the door 12 is rotatably provided on the frame body 10 by the hinges 13 and the stick rod 14 acts on the upper portion of the door 12, but the stick rod 14 is placed on the upper portion of the door 12. Not only when it works, but the tie rod 14 is the door 1
This is because, even when the lower side or the like of the door 2 is acted on the indoor side, it is possible to reliably prevent the lever 12 from naturally descending due to its own weight and to rotate the door 12 to the indoor side. That is, the Shinbari bar 14 and the door 12 are hinged 13.
If it is forcibly moved by a spring or the like while swinging around the center, the lever will forcibly contact the outdoor side of the door 12 and the like, and the door 12 will rotate to the indoor side. This is because it is possible to cause a disadvantage that it acts not only to prevent the rotation but also to prevent only the rotation to the outdoor side.

In order to prevent the door from turning, for example, when a locking piece directly provided on the solenoid is provided so as to be forcibly fitted into the recess on the door side, a hinge is generally used. The locking piece cannot be fitted into the concave portion only at the time when the swing of the door that rotates around the center is stopped. On the other hand, according to the Shinbari bar of the present invention, since it descends by its own weight,
When the entrance / exit door turns to a position where it closes the opening, it can descend to a predetermined lock position, immediately prevent the entrance / exit door from swinging, and lock the entrance / exit door, allowing a stray cat to enter. Can be blocked.

Further, a reed switch or the like that can be suitably opened and closed by magnetic force can be used as a switch of the electromagnet device.

(Effects of the Invention) According to the pet door of the present invention, at least one of the doors is moved by the action of the electromagnet device energized by the switch that closes when the permanent magnet attached to the pet being raised approaches. It is possible to cancel the rotation blocking of the door by the lever that moves the lever that blocks the rotation against the gravity. As a result, only pets that are raised can freely enter and leave.

Then, since the shibari bar descends by its own weight immediately after the breeding pet has passed, it is possible to suitably stop the swinging of the door and at the same time prevent its rotation suitably.
It has a remarkable effect that it can quickly and surely prevent the entry of imminent stray cats. In addition, since the electromagnet is energized only when a pet kept in and out, the power consumption is extremely small, and since a dry battery can be used as a power source, it can be easily installed even in a place without a power source. It also has an effect.

[Brief description of drawings]

1 is a cross-sectional view showing an embodiment of the present invention, FIG. 2 is a perspective view showing an embodiment of a collar of the present invention, and FIG. 3 is a cross-sectional view showing an operating state of FIG. FIG. 4 is a vertical sectional view showing another embodiment of the present invention. 10 ... Frame body, 12 ... Door, 14 ... Shinbar, 16 ... First permanent magnet, 20 ... Electromagnet, 22 ... Push button switch, 30 ... Collar , 32 ... second permanent magnet

Claims (2)

[Scope of utility model registration request] 1. A pet door which allows one end of a door provided in an opening of a frame to rotate in a pressing direction of a pet such as a cat so that the pet can pass through the opening of the frame. , A reciprocating rod provided in the direction of gravity and constantly contacting both the frame and the door due to its own weight to prevent rotation of the door to at least one of the door, When moving, the electromotive force is moved by the electromagnet device that moves the lever rod against gravity and cancels the rotation blocking of the door by the lever rod, and the permanent magnet provided on the pet collar or the like. A door for pets, which is equipped with a switch. 2. A pet door which allows one end of a door provided in an opening of a frame to rotate in a pressing direction of a pet such as a cat so that the pet can pass through the opening of the frame. A rebar that is provided so as to reciprocate in the direction of gravity and that is always in contact with both the frame and the door by its own weight to prevent rotation of the door to at least one of the doors; A first permanent magnet provided on either one of the bar rod or the frame body; and a first permanent magnet corresponding to one of the bar rod or the frame body on which the first permanent magnet is not provided. , A magnet that repels the first permanent magnet when energized, moves the stick rod against gravity and releases the rotation blocking of the door by the stick rod, and a pet collar, etc. Energize the electromagnet by the second permanent magnet provided on the Pet and out the door, characterized in that it comprises a switch that.