JP2023019844A - Door lock structure for intrusion control fence and intrusion control fence using the same - Google Patents

Abstract

To provide a door lock structure for an entry control fence being less likely to form dangerous gaps at a lower end side, etc. of the door, and intrusion control fence using the same.SOLUTION: A door lock structure provided on an intrusion control fence includes: a lower crosspiece; a first door and a second door, where one or both of the first door and the second door can be opened/closed, with the lower crosspiece left there; an upper lock member for locking mutual opening/closing, provided on an upper part between the first door and the second door; and a lower lock member for locking the mutual opening/closing at three points of the first door, the second door and the lower crosspiece.SELECTED DRAWING: Figure 1

Description

TECHNICAL FIELD The present invention relates to a lock structure for a door provided in an intrusion control fence and an intrusion control fence using the same.

Intrusion control fences may be installed to prevent pets, small children, etc. from entering specific areas such as kitchens and corridors.
By providing an openable and closable door in a part of this entry control fence, people can pass through the door even with the fence installed.
In addition, by providing the door with a locking mechanism, it is possible to prevent the door from being unintentionally opened by a pet or the like.

For example, in the safety fence disclosed in Patent Document 1, a first door and a second door rotatably supported by a door frame are positioned in a closed state by a positioning magnet, and a lock member provided at the upper end of the second door (Locking member) is locked to the upper end of the first door to lock both doors.
The safety fence disclosed in the publication can be opened by the user only lightly pressing the unlocked door.
However, since only the upper end of the door is locked in the locked state, for example, if a pet pushes the lower end of the door, a dangerous gap will be created between the door and the lower frame of the door frame, which will cause the pet to succumb. Hands and feet may get caught.
Also, even if the lower ends of both doors are similarly locked with the above lock member, the gap is smaller than when only the upper ends are locked, but there is still a dangerous gap between them and the lower rail. .

Japanese Patent Application Laid-Open No. 2020-92781

SUMMARY OF THE INVENTION An object of the present invention is to provide a door lock structure for an intrusion control fence in which a dangerous gap is less likely to occur on the lower end side of a door or the like, and an intrusion control fence using the same.

A door lock structure for an intrusion control fence according to the present invention is a lock structure for a door provided in an intrusion control fence, comprising a lower rail, a first door and a second door, wherein the first door and the second door are provided. One or both of the doors can be opened and closed with the lower bars left, and an upper lock member is provided between the first door and the second door to lock mutual opening and closing, It is characterized by having a lower lock member for locking mutual opening and closing at three points of the lower parts of the first door and the second door and the lower rail.
The first door and the second door are arranged side by side in the left-right direction, and may be either double-opening or single-opening.
In the case of a single door, one door becomes a fixed panel body.
If both doors can be opened and closed, it is easier for people and pets to pass through.
In the door lock structure according to the present invention, the lower lock member suppresses the generation of a dangerous gap at the lower end side of the door in a state where the upper end side of the door is locked by the upper lock member.
For example, when a pet applies a load to the first door provided with the lower locking member in the locked state, the lower end of the first door abuts and is supported by the lower rail and the second door via the lower locking member. .
Since the lower lock member simultaneously locks the two doors and the lower beam at three points, dangerous gaps are less likely to occur at the lower ends of the doors, and the upper lock members can also suppress the occurrence of gaps at the upper ends.
The upper locking member and the lower locking member may be provided on the same door or may be provided on different doors.

In the present invention, the lower locking member may be rotatably provided at the lower end of the one door, and may abut against the front or rear surface of the lower rail and the other door in the locked state.
The lower locking member has a pair of interlocking front and rear locking pieces, and the pair of front and rear locking pieces are rotatably provided at the lower end of the one door. In the locked state, the lower rail and the other door may be in contact with the front and/or rear surfaces, respectively.
When the lower locking member is rotatably provided on one of the doors in this manner, the tip of the lower locking member can be accommodated so as not to abut against the lower rail or the other door, and the lower locking member can be locked when the door is opened or closed. It does not get in the way.
Since the upper end side of both doors is locked by the upper lock member, the lower lock member may be in contact with the lower rail and one side of the other door, respectively. sandwiches the lower rail and the other door and abuts on both sides thereof, it is possible to more effectively suppress the occurrence of a gap at the lower end side of the door.
In addition, the lower locking member can be operated from either side in the traveling direction (front-rear direction) by interlocking the pair of front-side locking pieces and rear-side locking pieces.
In this specification, one door is expressed as either the first door or the second door in the case of double doors, and even if one door is a fixed panel body in the case of single doors. Good purpose.

One aspect of the present invention is an intrusion control fence characterized by including the above-described door lock structure.
The intrusion restricting fence according to the present invention has the upper locking member rotatably attached to the upper end of the one door, and has a pair of front restricting pieces and rear restricting pieces arranged opposite to each other. In the released state, the upper end of the vertical frame of the door is inserted between the front and rear regulation pieces, and in the locked state, the upper frame of the other door is inserted between the front and rear regulation pieces. An end may be inserted.
Further, it is preferable that the upper lock member is held in an unlocked state by a holding member provided at the upper end of the vertical frame.
For example, both doors can be locked by inserting the upper frame end of the other door into the inner side of an upper lock member having a substantially U-shaped cross section provided at the upper end of one door.
When the two doors are not locked, the upper lock member is rotated, and the upper end of the vertical frame of the door having the upper lock member is inserted into the upper lock member to engage the upper lock member. difficult.
Further, if the upper lock member and the vertical frame are held in a fitted state with a holding member made of a non-slippery material such as rubber, it is easy to prevent the upper lock member from wobbling.
The holding member may be provided only on the front surface of the upper end portion or the rear surface of the upper end portion of the vertical frame.
For example, when a pet is in front of an entry control fence, the risk of the pet playing with the holding member can be reduced if the holding member is provided only on the rear surface of the upper end of the vertical frame.

In the door lock structure of the intrusion control fence according to the present invention, the lower lock member locks the two doors and the lower rail at the same time. Dangerous gaps are less likely to occur on the sides, etc.
In addition, the intrusion control fence having such a door lock structure achieves the purpose of controlling the intrusion of pets and the like, and is also excellent in safety.

1 shows a structural example of an intrusion control fence according to the present invention; (a) shows a view of FIG. 1 viewed from the front side, and (b) shows an example of its unlocked state. (a) shows a view of FIG. 1 viewed from the rear side, and (b) shows an example of its unlocked state. (a) is a view of FIG. 1 viewed from above, and (b) is a view of FIG. 1 viewed from the right side. An example of an open door state is shown. (a) shows a structural example of the upper locking member, (b) shows a structural example of the lower locking member, and (c) shows another structural example of the lower locking member. An enlarged view near an upper lock member is shown, (a), (b) shows an example of an unlocked state, and (c) shows an example of a locked state. An enlarged view of the vicinity of the lower lock member is shown, (a) and (b) show an example of unlocked state, and (c) shows an example of locked state. A partial enlarged view of the vicinity of the lower lock member, the lower rail, and the lower frame of the second door is shown, (a) is an example of the state before the load is applied to the door, and (b) is an example of the state when the load is applied to the door. indicate. 3 shows another structural example of the entry control fence according to the present invention.

The intrusion control fence according to the present invention is for controlling the passage of pets and the entry of small children, for example, and is provided with a door equipped with a lock mechanism so that people can pass through as necessary.
Hereinafter, as an example of this embodiment, a regulation fence that can be bent into a substantially U shape, a substantially V shape, etc., and can stand on its own will be described. Alternatively, it may be a type of restriction fence that encloses four sides like a pet circle.
For convenience of explanation, this embodiment is installed so as to partition the passage between the passages, for example, as shown in FIG. Although this is an example of restricting pets from entering the rear side, the present invention is not limited to this.

1 to 5 show structural examples of entry control fences.
The intrusion control fence of this embodiment includes, for example, a front panel having a first door 11 and a second door 12 as shown in FIG. 1, and rotatable side panels 41, 41 on both sides of the front panel.
The front panel has a lower rail 13 and vertical rails 14, 14 erected from both ends thereof.
In this embodiment, the first door 11 is attached via a pivot shaft provided on one vertical rail 14 side, and the second door 12 is attached via a pivot shaft provided on the other vertical rail 14 side. Although the first and second doors 11 and 12 can open on both sides, the present invention can also be applied to a single opening type in which only one of the first and second doors can be opened and closed.
In this specification, in the case of an opening/closing type door, the open end side is referred to as the tip (side), and the rotating shaft side is referred to as the base (side).
A support member 15 is attached to the vertical beam 14 so that it can be installed independently.
The side panel 41 is rotatably connected to the vertical beams 14 of the front panel via rotating devices 42 and 43, and the side panel pivotally supported vertically by the rotating device rotates with respect to the front panel.
This embodiment is an example in which the grounding members 16a, 16b, and 16c are attached to the lower end of the support member 15 and the lower ends of the lower frame 41a of the side panel 41. It may have no member.
An upper lock member 20 and a lower lock member 30 are attached to the upper end and the lower end of the first door 11 so as to be rotatable in the vertical direction. Can be switched to unlocked state.
Although this embodiment is an example in which each locking member is attached to the first door, it may be attached to the second door.

The first door 11 has, for example, a lower frame 11a, an upper frame 11b, and a vertical frame 11c connecting the tip sides thereof as shown in FIG. 2(a). This is an example of
Through holes for attaching the lower locking member 30 and the upper locking member 20 are provided on the tip side of the lower frame 11a and the upper frame 11b, respectively.
On the other hand, on the base side of the lower frame 11a and the upper frame 11b, the lower frame 11a is attached to the lower rail 13 via the shaft support portion 17, and the upper frame 11b is attached to the vertical rail via the rotation support device (receiving portion 18, rotating portion 19). 14 are pivotally connected to each other.
Thereby, the first door 11 can be opened rearward as shown in FIG. 5, for example.
The structure of the rotary support device is not particularly limited.
For example, in the rotary support device, a pivot shaft projecting upward from a receiving portion 18 on the side of the vertical beam 14 may be inserted into the rotating portion 19 on the side of the upper frame 11b to serve as a rotating shaft.
On the other hand, as shown in FIG. 2B, for example, the second door 12 has a lower frame 12a, an upper frame 12b, and a vertical frame 12c connecting the tip sides thereof. are placed.
Further, the base sides of the lower frame 12a and the upper frame 12b are rotatably pivoted to the lower rail 13 and the vertical rail 14 via the shaft support portion 17 and the rotation support device (receiving portion 18, rotating portion 19), respectively. , the second door 12 can be opened rearward as shown in FIG.
The second door 12 may be a fixed panel body in which the base side is connected and fixed to the vertical beam 14 side.

FIG. 6(a) shows a structural example of the upper lock member 20 in this embodiment, and FIG. 7 shows an enlarged view of the vicinity of the upper lock member 20 attached to the first door of the entry control fence.
As shown in FIG. 6(a), the upper locking member 20 has a pair of substantially rectangular front and rear restricting pieces 21 and 22 arranged opposite to each other.
Between the pair of front and rear regulation pieces 21 and 22, a connecting portion 23 is partially provided between the pair of front and rear regulation pieces so that a predetermined gap D1 can be formed so that an upper frame and a vertical frame can be accommodated as will be described later. is connected to
Note that the front restricting piece 21, the rear restricting piece 22, and the connecting portion 23 may be formed integrally.
The upper lock member 20 is attached to the first door (upper frame 11b) by inserting the tip side of the upper frame 11b into the gap D1 so that the mounting holes 21a and 22a and the through holes provided in the upper frame 11b are aligned. A shaft member 24 is inserted into the through hole and the mounting hole to be rotatably mounted.
Switching between the locked state and the unlocked state of the upper locking member 20 will be described with reference to FIG.
First, the locked state will be explained. As shown in FIG. 7(c), the upper lock member 20 rotatably attached to the upper frame 11b of the first door is connected between the front side restricting piece 21 and the rear side restricting piece 22. The upper frame 12b of the second door is turned toward the second door so that the upper frame 12b of the second door is accommodated in the gap D1 provided therebetween.
In this case, the connecting portion 23 is provided on the outer side of the pair of front and rear restricting pieces 21 and 22 in the locking direction so as to be positioned on the upper side in the locked state.
As a result, the connecting portion 23 is held in contact with the upper surface of the upper frame 12b of the second door, and the locked state is maintained.
Next, the unlocked state will be described with reference to FIGS. 7(a) and 7(b).
To release the lock, after rotating the top end of the upper locking member 20 from the state shown in FIG. Or open and operate both.
Then, the tip side of the upper locking member 20 is rotated by its own weight, and as shown in FIG. It is held hanging down so that it fits.
This prevents the upper lock member 20 from becoming an obstacle when opening and closing the first and second doors.
As shown in FIGS. 3A and 3B, a holding member 11e made of rubber or the like may be provided on the rear surface of the upper end portion of the vertical frame 11c of the first door.
With this configuration, when the upper locking member 20 is in the unlocked state, the holding member 11e is sandwiched between the vertical frame 11c and the rear-side restricting piece 22, thereby preventing swaying.

A structural example of the lower locking member 30 in this embodiment is shown in FIG. 6(b).
8 and 9 show enlarged views of the vicinity of the lower lock member 30 attached to the first door of the entry control fence.
The lower locking member 30 has a pair of substantially L-shaped front locking pieces 31 and rear locking pieces 32, as shown in FIG. 6(b).
The front lock piece 31 and the rear lock piece 32 face each other in the front-rear direction with a gap D2, and mounting holes 31a and 32a provided at approximately the corners penetrate in the front-rear direction.
The front locking piece 31 and the rear locking piece 32 have lower rail regulation pieces 31b and 32b and lower frame regulation pieces 31c and 32c, respectively. One side is partially connected by a connecting portion 33 .
As shown in FIGS. 8A to 8C, the lower frames 11a and 12a and the lower rail 13 of the first and second doors can be inserted into the gap D2.
To attach the lower lock member 30 to the first door (lower frame 11a), insert the tip side of the lower frame 11a into the gap D2 so that the mounting holes 31a and 32a are aligned with the through holes provided in the lower frame 11a.
At this time, the connecting portion 33 is disposed inside the unlocking rotation track of the lower lock member so as to abut on the vertical frame 11c, and the shaft member 34 is inserted into the mounting hole and the through hole to rotate freely. Attach to
As a result, the lower lock member 30 is rotatably attached to the tip side of the lower frame 11a of the first door.
FIG. 6(c) shows another structural example of the lower locking member 30, but the lower locking member 30 may be composed only of the front locking piece 31 or the rear locking piece 32. As shown in FIG.

Switching between the locked state and the unlocked state of the lower locking member 30 will be described with reference to FIG.
8A and 8B show the state in which the lock is released, and FIG. 8C shows the state in which the lower lock member 30 is rotated and locked.
First, the locked state will be described with reference to FIG. 8(c).
A front lock piece 31 and a rear lock piece 32, which constitute the lower lock member 30, are partially connected to each other with a predetermined gap D2 between the front lock piece 31 and the rear lock piece 32. When the locking member 30 is turned toward the second door 12, the lower rail 13 is accommodated between the pair of lower rail restricting pieces 31b and 32b.
Also, the lower frame 12a of the second door is accommodated between the pair of lower frame regulation pieces 31c and 32c.
At this time, the connecting portion 33 contacts the lower surface of the lower frame 11a of the first door, so that this locked state is maintained.
As a result, the lower locking member 30 locks the lower frame 11a of the first door, the lower frame 12a of the second door, and the lower rail 13 to each other.
By doing so, it is possible to prevent a dangerous gap from occurring between the doors on both sides and the lower rail in the past.
This state will be explained with reference to FIG. 9. For example, when the pet applies force to the door of the entry control fence, the state shown in FIG. 9(a) changes to the state shown in FIG. 9(b).
For example, when force is applied to the second door, the rear surface of the lower frame 12a of the second door contacts the rear lock piece 32 of the lower lock member, and the front surface of the lower rail 13 contacts the front lock piece 31. As shown in FIG.
When a force is applied to the first door, the opposite is the case, but in any case, it is locked at three points, so that a dangerous gap is less likely to occur as in the conventional case.
Next, the unlocked state of the lower locking member 30 will be described with reference to FIGS. 8(a) and 8(b).
The lower locking member 30 is rotated toward the base side of the first door.
Then, the vertical frame 11c of the first door fits between the lower rail regulation pieces 31b and 32b positioned on the lower rail 13, and the lower frame regulation pieces 31c and 32c positioned on the lower frame 12a of the second door are moved. The lower frame 11a of the first door is accommodated between them.
This unlocked state is maintained by the connecting portion 33 coming into contact with the side surface of the vertical frame 11c of the first door.
Thus, in the unlocked state, the lower lock member 30 is housed on the side of the first door, so it does not obstruct traffic.
Further, when the lower locking member 30 is composed only of the front side locking piece 31 as shown in FIG. When applied, since the upper ends of both doors are locked by the upper locking member, the front locking pieces 31 come into contact with the front surface of the lower rail 13 and the front surface of the lower frame 12a of the second door, respectively.
As a result, the occurrence of a dangerous gap at the lower end side of the door is suppressed.

FIG. 10 shows another structural example of the entry control fence.
The intrusion control fence of this embodiment is an example in which the front panel has extensions 51, 51 on both sides of the first and second doors 11, 12, and the side panel is attached to the vertical beam 52 of the extension 51 via a rotating device. 41 is rotatably connected, and a support member 53 is connected to the vertical beam 52 .
Although this embodiment is an example in which the door is provided in the central portion of the front panel, the door may be provided in the side portion of the front panel.

11 First door 11a Lower frame 11b Upper frame 11c Vertical frame 12 Second door 12a Lower frame 12b Upper frame 12c Vertical frame 13 Lower beam 14 Vertical beam 20 Upper lock member 30 Lower lock member 31 Front lock piece 32 Rear lock piece

Claims (6)

A lock structure for a door provided in an intrusion control fence,
Having a lower rail, a first door and a second door,
One or both of the first door and the second door can be opened and closed with the lower rail left,
An upper lock member for locking mutual opening and closing is provided at the upper part between the first door and the second door,
A door lock structure for an intrusion control fence, characterized in that it has a lower lock member for locking mutual opening and closing at three points of the lower parts of the first door and the second door and the lower rail. 2. The intrusion control according to claim 1, wherein the lower locking member is rotatably provided at the lower end of the one door, and in the locked state abuts against the front surface or the rear surface of the lower rail and the other door, respectively. Fence door lock structure. the lower locking member has a pair of interlocking front and rear locking pieces,
The pair of front lock pieces and rear lock pieces are rotatably provided at the lower end of the one door, and in the locked state abut on the front and/or rear surfaces of the lower rail and the other door, respectively. The door lock structure of the intrusion control fence according to claim 1. An intrusion control fence comprising the door lock structure according to any one of claims 1 to 3. the upper lock member is rotatably attached to the upper end of the one door and has a pair of front and rear regulation pieces facing each other;
In the unlocked state, the upper end of the vertical frame of the door is inserted between the front side regulation piece and the rear side regulation piece,
5. The intrusion restricting fence according to claim 4, wherein in the locked state, the upper frame edge of the other door is inserted between the front restricting piece and the rear restricting piece. 6. The entry control fence according to claim 5, wherein said upper lock member is held by a holding member provided at the upper end of said vertical frame in an unlocked state.

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