JP2001098852A - Door structure for main entrance, auxiliary door set therefor, main entrance structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a door structure for a main entrance capable of preventing children or pets from running out outdoors even when the main entrance is opened to ventilate the indoor space and securing safety and certainly fixing itself. SOLUTION: The door structure is constituted of a main entrance door 1 which is openable toward the outdoor side of the entrance and an auxiliary door body 18 provided at. the inside of the main entrance door 1 together therewith so as to be openable toward the inside or the outside of the entrance. Since the face material of the auxiliary door body 18 is constituted of muntins 20, ventilation between the indoor side and the outdoor side becomes good when the auxiliary door body 18 is closed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door structure of an entrance where an auxiliary door for preventing popping out is provided inside the entrance door, and an auxiliary door set used therefor.

[0002]

2. Description of the Related Art In many homes, entrances are provided with good ventilation openings, and many homes open the entrances for indoor ventilation (ventilation). However, in a home with infants or a home where pets such as puppies and cats are kept indoors, it is necessary to prevent infants and pets from jumping out of this open entrance to the outside to ensure safety. . For this reason, for example, a fence or the like is placed or laid in the entrance hall near the rising stall to prevent infants and pets from jumping out of the room.

[0003]

However, the structure near the entrance hall differs between individual homes and is not constant. For this reason, the size (especially the width) of the required fence varies, and it is difficult to obtain an appropriate fence. Also, simply placing a fence is not stable.
In order to stabilize the fence, it is better to fix the fence at an appropriate place, but there is often no suitable support in the entrance hall. In this case, it is difficult to securely fix the fence.

Therefore, the present invention prevents the infant or pet from jumping out of the room even when the entrance door is opened to maintain the ventilation in the room, thereby ensuring safety and securely fixing the pet. An object of the present invention is to provide a front door structure that can be used.

[0005]

According to a first aspect of the present invention, there is provided an entrance door which is openable and closable toward the outside of the entrance, and which is provided inside the entrance door and which is inside or outside the entrance. An auxiliary door that can be opened and closed toward the front, wherein the auxiliary door is constituted by a vertical bar so that the entrance door is opened and the auxiliary door is closed when the auxiliary door is closed. The entrance door structure is characterized by good ventilation with the door.

According to such a configuration, when the entrance door is opened and the auxiliary door is closed, even if the auxiliary door is closed, the surface material is constituted by the vertical rails, so that the ventilation between the room and the outside is possible. And it is difficult for an infant or the like to get over the auxiliary door with his or her feet. As a result, even if the entrance is opened in a home where pets such as puppies and cats are kept indoors and infants are present, if the auxiliary door is closed, the infant will be able to maintain good ventilation, And pets can be prevented from jumping out of the room.

Further, since there is a fixing member such as a support frame for supporting the door near the entrance door, the auxiliary door is securely fixed by supporting the auxiliary door with the fixing member. Further, unlike a place where the frontage of the entrance hall is not uniform, the entrance door is generally standardized, so that an auxiliary door can be manufactured according to the standardized width of the entrance door. It becomes easy to provide the auxiliary door. This makes it easy to obtain an auxiliary door tailored to each home.

Further, according to this door structure, even if a door chain or the like is removed and the entrance door is opened for the visitor, the visitor cannot immediately enter the room if the auxiliary door is closed. It is effective in crime prevention. In addition, malicious visitors sometimes block their doors by preventing their doors from closing by slightly entering their small openings in the entrance door. This makes it difficult to prevent the door from closing. In this way, this auxiliary door also functions as a safety door.

Thus, even when the entrance door is opened and the ventilation in the room is maintained, it is possible to prevent infants and pets from jumping out of the room and to ensure safety. In addition, the workability of mounting the auxiliary door is good, and the mounting and fixing of the auxiliary door are secure.

The invention according to claim 2 is the entrance door structure according to claim 1, wherein the auxiliary door is formed of a material whose height is adjustable.

With this configuration, the height of the auxiliary door can be adjusted, so that the height can be adjusted in response to, for example, an increase in the size of a dog bred indoors. Disappears.

According to a third aspect of the present invention, the auxiliary door is rotatably supported by a support frame supporting the entrance door or a support column fixed in the vicinity thereof. Alternatively, the entrance door structure according to claim 2 is provided.

According to this structure, the auxiliary door is mounted on the support post fixed at or near the inner frame of the entrance door. Therefore, even if there is a slight difference in the size of the entrance door, the support post can be mounted. It is sufficient to adjust the position, and thus the mounting becomes easy.

According to a fourth aspect of the present invention, there is provided the entrance door structure according to the first aspect, wherein the auxiliary door can be opened and closed outward of the entrance.

According to this structure, by providing the support column, the auxiliary door can be opened and closed outward without interfering with the door stop, so that the convenience of the auxiliary door is improved. In addition, since the auxiliary door cannot be opened and closed toward the room, it is difficult to enter the room from the outside, and the security is improved.

The invention according to claim 5 is the entrance door structure according to claim 1, wherein the auxiliary door is lower in height than a handle of the entrance door.

According to such a configuration, the front door can be opened and closed using the handle, regardless of the opening and closing of the auxiliary door, so that the usability of the front door is improved. In addition, since this auxiliary door is composed of a vertical lattice consisting of vertical rails without horizontal rails, even if it is lower than the handle of the entrance door, infants etc. can not get over the horizontal rail Is secured.

Further, since this auxiliary door is lower than the line of sight of an adult, if the entrance door has a visitor confirmation opening,
Visitors can be confirmed from the opening with the entrance door closed. When the entrance door is opened, a feeling of opening is obtained.

The invention according to claim 6 is characterized in that the height of the auxiliary door is lower than the handle of the entrance door when the height is adjusted to be the lowest. Door structure.

According to this structure, when the height is smaller than the handle of the entrance door, the same operation and effect as the invention according to claim 6 can be expected.

According to a seventh aspect of the present invention, the auxiliary door is floated from the floor so as not to interfere with shoes, sandals, etc. when opening and closing the auxiliary door. The door structure of the entrance described in 1.

With this configuration, when the auxiliary door is opened and closed inward, the auxiliary door can be opened and closed even if there are obstacles such as shoes and sandals on the floor that are low in height. .

The invention according to claim 8 is characterized in that the auxiliary door is floated at a height higher than 5 cm from the floor surface and at a height that does not allow pets or infants to crawl. An entrance door structure according to claim 5.

According to this structure, when the auxiliary door is opened and closed outward, it does not interfere with the door stop, and when the auxiliary door is opened and closed inward, the floor is closed. The auxiliary door can be opened and closed even if there are obstacles of low height such as slippers on the surface.

According to a ninth aspect of the present invention, there is provided an auxiliary door set including a breathable auxiliary door having a face member formed of a vertical bar, and a support column for supporting the auxiliary door so that the auxiliary door can be opened and closed. The support column can be fixed to or near a support frame that supports the entrance door, and by fixing the support column near the support frame, the entrance door and the auxiliary door set are provided side by side. The auxiliary door set used for a door structure of an entrance according to claim 1, wherein when the entrance door is opened and the auxiliary door is closed, ventilation between the room and the outside is improved. is there.

According to a tenth aspect of the present invention, there is provided an entrance door which can be opened and closed outward of the entrance, and an auxiliary door which is provided inside the entrance door and which can be opened and closed inside the entrance. And a vacant space is provided at the entrance on the open end side of the auxiliary door.

According to this structure, since an empty space is provided in the entrance at the open end of the auxiliary door, when going out with a pet such as a dog, the pet is temporarily suspended in this empty space to assist the pet. The door can be opened, and the pet can be taken out from the opened auxiliary door. In addition, since this empty space is on the open end side of the auxiliary door, a large amount of empty space that does not interfere with the auxiliary door can be taken, and when returning home, many shoes can be left in this empty space.

In this way, when a dog or the like goes for a walk, the dog is temporarily put on standby in an empty space,
You can go out smoothly, and when you return home, there is a lot of empty space, so you can secure a large space where you can leave shoes etc.

[0029]

Embodiment 1 Hereinafter, Embodiment 1 of the present invention will be described.
Will be described.

FIGS. 1 to 6 are views for explaining the first embodiment of the present invention.

First, the structure will be described. In the drawing, reference numeral 1 denotes an entrance door having a width of about 80 cm, and reference numeral 2 denotes a frame having a height of about 2 m for supporting the entrance door 1. This entrance door 1 is shown in FIG.
As shown in the figure, a door closer (DC) 3 and the like 3 are located at the upper side of the room, a lock mechanism 5 such as a handle 4 and a lever handle lock is located at the center, a door scope (door eye or the like) 6 for checking visitors is located at the upper center, and a downward (movable) A gutter (with FD), a damper and the like 7 are provided.

On the other hand, the frame 2 is made of wood, lightweight steel frame, steel material (bonding steel plate or the like) or the like, and as shown in FIG. 3, standing frames 8, 9 on the outdoor side, upper frame 10, lower frame 11 (1
0 and 11 are not shown), and standing frames 12 and 13 on the indoor side, an upper frame 14 and a lower frame 15 (14 and 15 are not shown). Each of the outdoor side frames 8 to 11 is integrally formed with a door stop (door stop stile). Rubber seals 16 are embedded in the door stops 8a, 9a of the standing frames 8, 9, respectively. Although not shown, a sealing material is similarly embedded in the door stop of the upper frame 10. The entrance door 1 is provided on the stand frame 8 on the outside side and is pivotally supported by a hinge 17 or the like, and can be opened and closed in the direction of the arrow toward the outside (entrance side).

1 and 3 are provided on the indoor side of the entrance door 1.
As shown in the figure, an auxiliary door main body 18 having a height of about 72 cm is also provided. This auxiliary door body 18 is shown in FIG.
As shown in FIG. 5, the vertical stiles 19a and 19b, the upper horizontal stile 19c, and the lower horizontal stair 19d are formed from a vertical lattice in which a plurality of vertical bars 20 provided in the stile 19 are assembled. ing. The gap between the vertical lattices (the distance between the vertical rails 20) is such that a pet or the like cannot enter or leave through the gap, and is usually larger than 5 cm in internal distance, but may be about 1 cm.

The auxiliary door body 18 may be made of any material, for example, wood, aluminum alloy, plastic or steel. In this embodiment, the auxiliary door body 18 is made of a hollow aluminum alloy. .

In the auxiliary door body 18, one of the standing stiles 19a is installed in the room and fixed to the standing frame 12 by a serial number 22 or the like, and can be opened and closed in the direction of the arrow toward the room. This lower side stile 19d and floor (F
L) and the distance h is about 5 cm or 5 cm or more,
And it is kept at a height that does not allow the pet or infant to crawl. This height depends on the size of the target pet or infant. For example, when targeting kittens, it is better to be about 5 cm, and when targeting infants,
It may be about 20 cm. Also, when targeting dogs,
It is adjusted within the range of about 5 cm to 20 cm depending on the size of the dog. Further, the hinge 22 may be various free hinges (auto hinges) as necessary.

Next, the operation of the entrance door structure will be described.

In such a case, as shown in FIG. 5, the entrance door 1 can be opened and closed outdoors, while the auxiliary door body 18 can be opened and closed indoors. Further, since the height of the auxiliary door body 18 from the floor surface FL is about 5 cm or more, the auxiliary door body 18 can be opened and closed even when a low-height obstacle such as a slipper is present in the indoor entrance. .

Since the height of the auxiliary door body 18 is lower than the position of the handle 4 as shown in FIG. 2, the opening and closing operation of the entrance door 1 can be performed even when the auxiliary door body 18 is closed. The mechanism 5 can be operated, and the visitor can be confirmed by the visitor confirmation door scope 6. Thereby, the usability of the entrance door 1 is hardly hindered by the auxiliary door body 18.

As shown in FIG. 6, even if the entrance door 1 is opened, if the auxiliary door body 18 is closed, the action of the auxiliary door body 18 allows the pets such as puppies and cats to be kept indoors. And infants can be prevented from jumping out of the room. Further, since the height of the auxiliary door main body 18 is low, ventilation is promoted from the upper opening 23 of the auxiliary door main body 18, and
Lighting is achieved.

When the height of the auxiliary door body 18 is reduced, the surface material of the auxiliary door may be, for example,
As shown in FIG. 4 (b), when the auxiliary door body 18 is formed of a lattice formed by the vertical rails 20 and the horizontal rails 21, the height of the auxiliary door body 18 is low. It is possible to get over. However, since the surface material of the auxiliary door main body 18 is composed of only the vertical rails 20, it is difficult to put a limb on the surface material portion, and there is no fear that an infant gets on the horizontal rails 21 and gets over the auxiliary door.

According to this door structure, the entrance door 1
Since the auxiliary door main body 18 is attached to the frame 2 as a support for supporting the auxiliary door main body 18, the auxiliary door main body 18 can be easily attached and the auxiliary door main body 18 can be securely fixed.

According to this door structure, even if the entrance door 1 is opened for a visitor, the visitor cannot enter the room immediately if the auxiliary door body 18 is closed.
It is effective in crime prevention. In addition, a malicious visitor sometimes blocks his / her door by preventing his / her door from closing by, for example, stepping into a slight opening of the entrance door 1 to prevent the door from being closed. Even if the entrance door is opened for the elderly, if the auxiliary door is closed, the auxiliary door body 1
8 makes it difficult to prevent the door from closing by allowing the foot to enter. Thus, the auxiliary door body 1
8 also functions as a safety door.

Thus, even when the entrance door 1 is opened and the ventilation in the room is maintained, it is possible to prevent infants and pets from jumping out of the room, to ensure safety and to obtain easily. It is possible to provide a front door structure which is easy to install.

In the first embodiment, if the free number (spring number with spring), which is always closed by an urging member such as a spring, is used as the number 22, the pet in the room can Although the pet cannot jump out of the room to the outside, the pet outside can push the auxiliary door body 18 to open the auxiliary door body 18 and enter the room.
After the pet returns to the room, the auxiliary door body 18 automatically closes because the hinge 22 is a free hinge, and the pet cannot jump out of the room again.

[0045]

[Modification 1] Modification 1 of Embodiment 1 of the present invention will be described with reference to FIGS. Note that the same or equivalent parts as those in the first embodiment will be described with the same reference numerals.

In the first embodiment, the height of the auxiliary door body 18 is fixed. However, in this modification, the vertical staircases (vertical frames) 19a and 19b and the vertical bars 20 are made of an elastic material. The height of the auxiliary door can be adjusted.

In this modification, as shown in FIGS. 14 to 17, the auxiliary door main body 18 (FIG. 4A) shown in the first embodiment has the vertical bars (19a, 19b, 20) near the upper end thereof. The upper cutting parts 191a, 191b, and 201 and the lower cutting parts 192a, 192b, and 202 are divided into upper and lower parts. In addition, these upper cutting portions 191a, 1
91b and 201 are provided with elastic portions 193a, 193b and 203 made of a hollow elongated member so that a vertical rail is formed even when the upper cutting portion is extended upward.

The expansion and contraction portions 193a and 193b correspond to FIG.
As shown in an enlarged view of the elastic portion 193a as an example in FIG. 17, a hollow long member having a substantially U-shaped cross section is formed in the hollow portion of the upper cutting portion 191a by inscribing and fixing with an adhesive or the like. In addition, a telescopic portion 193a is hung below the upper cutting portion 191a. The elastic portion 193a is fitted and inserted into the hollow portion of the lower cutting portion 192a, and is inserted into the vertical frame 19a.
(19b) is vertically expandable and contractible.

The vertical frame 19a (19b) is fixed in a state adjusted to an appropriate height. This fixing structure is not limited. For example, three engagement holes 1 are provided in the elastic portion 193a.
94, 195 and 196 are provided, and one engagement hole 197 is provided in the lower cutting portion 192a. The engagement hole 194 is formed at a position opposite to the engagement hole 197 in a state where the upper cut portion 191a and the lower cut portion 192a are joined.
Is drilled at a position facing the engaging hole 197 with the vertical frame 19a in the most extended state. In addition, the engagement hole 195 is
It is formed at an intermediate position between the engagement holes 194 and 196.

As shown in FIG. 17, the engaging hole 197 and the engaging hole 196 are opposed to each other with the extendable portion 193a extended, and the hook 200 is inserted into the two engaging holes 196 and 197 to be fixed. be able to. The vertical rail 20 may have a similar configuration, but the vertical rail 20 may not have a fixed structure.

As shown in FIG. 18, the vertical frames 19a and 19b may be formed as a pair of annular pipes 291 and 292 which can be extended and contracted and fixed by rotating each other.

Thus, the expansion and contraction portions 193a, 193b,
The position of the upper and lower stile (upper frame) 19c of the auxiliary door body 18 can be adjusted vertically by fitting and inserting the 203 into the hollow portions of the lower cutting portions 192a, 192b, and 202 to expand and contract vertically. .

In this way, for example, the degree of expansion
By making it about 0 cm to 50 cm, the upper stile 19
The position of c (height of the auxiliary door) is 70cm to 12cm from the floor.
It can be adjustable between 0 cm. The degree of the expansion and contraction is free, and may be 70 cm to 100 cm.

With this configuration, when the height of the upper stile 19c is adjusted to be low, the height of the auxiliary door main body 18 becomes lower than the position of the handle 4, so that the auxiliary door main body 18 is closed. However, the handle 4 and the lock mechanism 5 can be operated, and the visitor can be confirmed by the visitor confirmation door scope 6. Thereby, the usability of the entrance door 1 is hardly hindered by the auxiliary door body 18.

Further, in the case of a middle- or large-sized dog, such as a sheepdog (for example, a Collie), which can jump and breed, it is possible to cope by increasing the height.

Other structures, functions and effects are the same as those of the first embodiment.

[0057]

[Modification 2] Modification 2 of Embodiment 1 of the present invention will be described with reference to FIG. Embodiment 1
The same or equivalent parts will be described with the same reference numerals.

In the first embodiment, the door stop is not described for the auxiliary door main body 18.
By providing an appropriate door stop, it is possible to prevent a pet, an infant or the like from jumping out when leaning on the auxiliary door main body 18.

In this modified example, as shown in FIG. 19, a door stop 26 made of an aluminum liner is provided at an appropriate position on the inner side surface 13a of the stand frame 13, and the door stop 26 is provided as an interference member. A rubber material 28 is embedded. Accordingly, even when an infant or the like leans on the door main body 18 from the inside, the auxiliary door main body 18 does not interfere with the door stop and the auxiliary door main body 18 does not shake.

The other structures, functions and effects are the same as those of the first embodiment.

[0061]

Embodiment 2 Embodiment 2 of the present invention will be described with reference to FIGS. Note that the same or equivalent parts as those in the first embodiment will be described with the same reference numerals.

In the second embodiment, as shown in FIGS. 7 and 8, a set including a pair of support columns 24 and 25 and an auxiliary door body 18 is used. Here, the support columns 24, 2
Reference numeral 5 is used as a support for the auxiliary door main body 18 to be provided alongside the entrance door 1. This auxiliary door main body 18 is the same as in the first embodiment.

The auxiliary door main body 18 is
a and the supporting column 24 are fixed to the outside of the room and supported by a serial number 22 so as to be freely opened and closed. In addition, lower side town 19
The distance h between d and the floor (FL) is maintained at about 5 cm.

On the other hand, on the inner side surface 25a of the support column 25,
As shown in FIGS. 8 and 10, a door stop 26 made of an aluminum liner is fixed by screws 27, and a rubber material 28 as an interference member is embedded in the door stop 26.

As shown in FIG. 7 and FIG.
An inner lock 29 for simply locking the auxiliary door main body 18 is provided at a position above the fifth door 5.

As shown in FIG. 11, these support columns 24 and 25 are fixed to vertical frames 12 and 13 as inner frames. In this example, between the vertical frame 12 and the support columns 24, The wooden pillar 30 having an appropriate width is inserted, and the width is adjusted and fixed. Although the width of the auxiliary door main body 18 is the same as that of the first embodiment, the width of the auxiliary door main body 18 is configured to be smaller than the inner dimension between the door stops 8a and 9a because the width of the entrance door 1 is large. ing.

Next, the operation of the entrance door structure will be described.

With this configuration, the support columns 24 and 25 as support members are provided inside the vertical frames 12 and 13 of the entrance door 1.
Are fixed, and the auxiliary door main body 18 is
Is securely fixed. Further, since the arrangement of the support pillars 24 can be adjusted with an intermediate material having an arbitrary width such as a wooden pillar 30, for example, the doors 1 can be easily attached even if there is a slight difference in dimensions.

Since the support columns 24 and 25 are provided inside the door stops 8a and 9a of the entrance door 1, the auxiliary door body 18 does not interfere with the door stops 8a and 9a. . The auxiliary door body 18 is
Since the floor FL is suspended by about 5 cm from the floor FL, even if the floor FL has a slight door stop, the door can be opened and closed toward the entrance without interfering with the door stop. Thereby, both the auxiliary door body 18 and the entrance door 1
As shown in FIG. 11, the door can be opened and closed on the entrance side, so that it is convenient to use.

The auxiliary door body 18 can be opened and closed by an internal lock 29 as a lock mechanism that can be operated from the room, so that the auxiliary door body 18 is convenient to use. When the auxiliary door main body 18 is closed to lock the inner lock 29, the lower end of the auxiliary door main body 18 is brought into contact with the door stop 26, and the position of the auxiliary door main body 18 is fixed. Thus, even if an infant or a pet randomly contacts the auxiliary door main body 18, the auxiliary door main body 18 does not open.

[0071]

Third Embodiment A third embodiment of the present invention will be described with reference to FIG. Embodiment 1
The same or equivalent parts will be described with the same reference numerals.

In the first embodiment, the frame 2 near the entrance door is provided with the frames 8 to 11 on the outdoor side and the frames 12 to 15 on the indoor side separately. As shown in FIG. 12, it may be formed integrally with a steel plate or the like (such as a bond steel plate). In this case, the entrance door 1 and the auxiliary door main body 18 are directly fixed to the frame 2 by the hinges 22 and the like, so that the fixing is secure.

In the first embodiment, the auxiliary door body 1
Although the height of 8 was low, this height may be high if an opening is provided near the door handle 4, DC3, or the like. In this case, the visitor confirmation door scope (door eye etc.) 6
As shown by the imaginary line, if the auxiliary door main body 18 is extended and fixed to the indoor side of the auxiliary door main body 18, visual recognition becomes easy. In this case, since the surface material of the auxiliary door main body 18 is the vertical rail 20, by appropriately arranging the position of the vertical rail 20 or the door scope 6, the door scope 6 and the auxiliary door main body 18 do not interfere with each other. Can be arranged.

Further, a door stop 26 which comes into contact with the standing stile 19b may be provided in a state where the auxiliary door main body 18 is closed.

Other structures, functions and effects are the same as those of the first embodiment.

In the first and second embodiments, the auxiliary door body 18 is not provided with a handle for opening and closing, but may be provided.

[0077]

Fourth Embodiment A fourth embodiment of the present invention will be described with reference to FIG. Embodiment 1
The same or equivalent parts as those of Nos. 1 to 3 are denoted by the same reference numerals and described.

When the auxiliary doors of the first to fourth embodiments are installed in a place where the space between the entrance lands is small, such as an apartment (a multi-family house), the height of the auxiliary door body 18 from the floor surface FL is set low. Then, the tall lower legs will interfere.
Further, an umbrella stand, long boots, or the like cannot be disposed at the interference position for opening and closing the auxiliary door body 18.

In such a case, as shown in FIG. 13, an empty space 30a may be provided in the entrance soil space 30. In general, there is a space for a storage tool 31 such as a clog box in the entrance soil space 30. In FIG. 13, the storage tool 31 is moved to the entrance hall 32.

With such a configuration, long boots or umbrellas or other items having a long height or length can be accommodated in the empty space 3.
If the auxiliary door main body 18 is disposed at 0a, the auxiliary door main body 18 does not interfere with opening and closing of the auxiliary door main body 18. If the empty space 30a is taken, the storage tool 31 may protrude from the upward frame 33 to the side of the entrance soil 30.

[0081]

[Third Modification] A third modification of the fourth embodiment of the present invention will be described with reference to FIGS. Note that the same or equivalent parts as those of the fourth embodiment will be described with the same reference numerals.

In the third modification, the door 1 and the auxiliary door 1
By reversing the opening / closing direction of the right and left, the flow line design around the entrance is improved. That is, in the third modification,
The auxiliary door 18 is opened and closed inward as in the fourth embodiment, but the open end 18a of the auxiliary door 18 is arranged so as to be in the direction in which the empty space 30a is provided. In this figure, the lower leg box (storage tool) 31 is shown.
Is changed, but this position may be the same position as in the fourth embodiment.

With this configuration, when the dog 34 is taken out, as shown in FIG.
At 0a, the dog is temporarily on standby, and the auxiliary door 18 can be opened. When returning home, as shown in FIG.
Since the empty space 30a that does not interfere with the auxiliary door 18 is larger than that in the fourth embodiment,
Many shoes can be left in 0a.

Thus, when going out for a walk with a dog or the like, it is possible to go out smoothly by temporarily suspending the dog in the empty space 30a, and when returning home, the empty space 30a is wide. A large space that can be left unattended can be secured.

Other structures, functions and effects are the same as those of the fourth embodiment.

[0086]

As described above, according to the first aspect of the present invention, even when the entrance door is opened and the ventilation in the room is maintained, the infant or the pet jumps out of the room. Can be prevented and safety can be ensured. In addition, the workability of mounting the auxiliary door is good, and the mounting and fixing can be reliably performed.

According to the second aspect of the present invention, since the height of the auxiliary door can be adjusted, the height can be adjusted in response to, for example, an increase in the size of a dog bred indoors. The dog will not jump.

According to the third aspect of the present invention, the auxiliary door is mounted on the support fixed to the inner frame of the entrance door. Mounting is easy because the width can be adjusted.

According to the fourth aspect of the present invention, since the auxiliary door can be opened and closed outward without interfering with the door stop, the usability of the auxiliary door is improved.

According to the invention described in claim 5 or 6,
Regardless of whether the auxiliary door is open or closed, the handle can be used to open and close the entrance door, so that the usability of the entrance door is improved. In addition, since this auxiliary door is composed of a vertical crossbar (vertical lattice) without a horizontal crossbar, even if it is lower than the handle of the entrance door,
Infants, etc., could not get over the horizontal rail,
Safety is ensured. In addition, since the auxiliary door is lower than the adult's line of sight, if the entrance door has a visitor confirmation opening, the visitor can be confirmed with the entrance door closed from the opening. When the entrance door is opened, a feeling of opening is obtained.

According to the seventh aspect of the present invention, the auxiliary door floats on the floor so as not to interfere with shoes, sandals and the like when opening and closing. , Sandals etc. do not interfere with the door.

According to the eighth aspect of the present invention, when the auxiliary door is opened and closed outward, there is no interference with the door stop, and when the auxiliary door is opened and closed inward. In this case, the auxiliary door can be opened and closed even if there is a low-height obstacle such as slippers on the floor surface.

According to the tenth aspect of the present invention, the empty space is provided in the entrance at the open end of the auxiliary door. Therefore, when going out with a pet such as a dog, the pet is temporarily stored in the empty space. You can wait and open the auxiliary door, take out the pet from the opened auxiliary door,
Also, since this empty space is on the open end side of the auxiliary door, a lot of empty space that does not interfere with the auxiliary door can be taken, so if you take a walk with a dog etc., temporarily put the dog in the empty space. By waiting, it is possible to go out smoothly, and when returning home, there is a large free space, so that there is a practically useful effect that a wide space where shoes and the like can be left can be secured.

[Brief description of the drawings]

FIG. 1 is a diagram of an entrance structure according to a first embodiment of the present invention as viewed from the indoor side.

FIG. 2 is a diagram of the entrance door used in the embodiment of the present invention as viewed from the indoor side.

FIG. 3 is a horizontal sectional view of the entrance structure of FIG. 1 taken along line AA.

4 shows a perspective view of the auxiliary door, FIG. 4 (a) is a perspective view of the auxiliary door of FIG. 1, and FIG. 4 (b) is a perspective view of an auxiliary door as a comparative example.

FIG. 5 is a diagram illustrating an open / closed state of the entrance structure of FIG. 1;

6 is a view of the entrance structure of FIG. 1 when the entrance door is opened and the auxiliary door is closed, as viewed from the indoor side.

7A and 7B are diagrams illustrating an auxiliary door set according to a second embodiment of the present invention. FIG. 7A is a front view as viewed from the entrance, and FIG. It is.

FIG. 8 is a plan sectional view taken along line BB of FIG. 7A.

FIG. 9 is a partial horizontal sectional view illustrating details of the inner lock shown in FIG.

FIG. 10 is a side sectional view taken along line CC of FIG. 7 (a).

FIG. 11 is a horizontal view illustrating the entrance structure used in the second embodiment of the present invention.

FIG. 12 is a horizontal sectional view of an entrance structure according to a third embodiment of the present invention.

FIG. 13 is a plan view near the entrance of an apartment for explaining Embodiment 4 of the present invention.

FIG. 14 is a perspective view illustrating an auxiliary door according to a first modification.

FIG. 15 is a perspective view illustrating a state where the height of the auxiliary door of FIG. 14 is increased.

16 is a view for explaining expansion and contraction of a vertical frame 19a of the auxiliary door of FIG. 14, and FIG. 16 (a) shows a normal state;
FIG. 16B shows the extended state.

FIG. 17 is a sectional view of FIG.

FIG. 18 is a diagram showing an example in which a vertical frame 19a is a pipe.

FIG. 19 is a horizontal sectional view illustrating an auxiliary door according to a second modification.

FIG. 20 is a plan view of the vicinity of the entrance of an apartment for explaining Modification 3;

21 is a diagram showing a flow line design example near the entrance in FIG. 20. FIG. 21 (a) shows a flow line when going out for a walk, and FIG. 21 (b) shows a flow line when returning home.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Entrance door 17 Reference number 18 Auxiliary door body 20 Vertical beam 22 Reference number

Claims (10)

[Claims] 1. An entrance door which can be opened and closed outward of an entrance, and an auxiliary door which is provided inside the entrance door and which can be opened and closed inside or outside the entrance, The auxiliary door has a face member formed of a vertical bar,
The entrance door structure, wherein when the entrance door is opened and the auxiliary door is closed, ventilation between the room and the outside is improved. 2. The entrance door structure according to claim 1, wherein the auxiliary door is formed of a material whose height can be adjusted. 3. The auxiliary door according to claim 1, wherein the auxiliary door is rotatably supported by a support frame supporting the entrance door or a support column fixed near the support frame. Entrance door structure. 4. The entrance door structure according to claim 3, wherein the auxiliary door can be opened and closed outward of the entrance. 5. The entrance door structure according to claim 1, wherein the height of the auxiliary door is lower than a handle of the entrance door. 6. The entrance door structure according to claim 2, wherein the height of the auxiliary door is lower than the handle of the entrance door when the height is adjusted to be the lowest. 7. The entrance door structure according to claim 1, wherein the auxiliary door is floated from the floor so as not to interfere with shoes, sandals and the like when opening and closing. . 8. The apparatus according to claim 1, wherein the auxiliary door is at least 5 cm from the floor surface and floats at such a height that pets or infants cannot crawl. Item 2. An entrance door structure according to item 1. 9. An auxiliary door set comprising a breathable auxiliary door whose face material is formed of a vertical bar, and a support column for supporting the auxiliary door so that the auxiliary door can be opened and closed, wherein the support column is provided at the entrance. By fixing the support column to the support frame or the vicinity thereof, the entrance door and the auxiliary door set are provided side by side, and the entrance door can be fixed to the support frame supporting the door or the vicinity thereof. The auxiliary door set used in the entrance door structure according to claim 1, wherein when the auxiliary door is opened and the auxiliary door is closed, ventilation between the room and the outside is improved. 10. The auxiliary door, comprising: an entrance door that can be opened and closed outward of the entrance; and an auxiliary door that is provided adjacent to the inside of the entrance door and that can be opened and closed inward of the entrance. The entrance structure, characterized in that an empty space is provided at the entrance on the open end side of the entrance.