JP7148985B2 - Safety fence - Google Patents

Description

TECHNICAL FIELD The present invention relates to a safety fence that regulates passage or entry of infants and pets.

A safety fence that restricts the passage or entry of infants and pets can be fixed to an installation location using an extendable device (see Patent Document 1, for example). The telescoping device is provided at the widthwise end of the safety fence and configured to be displaceable in the widthwise direction. For example, when a safety fence is installed in a passage, the safety fence can be fixed by stretching it by displacing the telescopic device in the width direction and pressing it against the left and right wall surfaces of the passage.

A safety fence that is fixed by stretching as described above requires a certain level of rigidity or more so as not to be deformed during installation. In particular, when the safety fence has a door, the door frame surrounding the door is required to have high rigidity. Therefore, the height of the lower frame positioned below the door among the door frames also increases, and the general height of the lower frame is about 40 to 60 mm.

JP 2019-163609 A

However, if the height of the lower frame of the safety fence is high (if the vertical dimension is large), pedestrians passing through the safety fence will easily trip over the lower frame, and wheelchairs will not be able to pass through the safety fence. Based on this, it is an object of the present invention to provide a safety fence capable of maintaining the rigidity of the lower frame at a certain level or more while suppressing the vertical dimension of the lower frame.

A safety fence according to an aspect of the present invention includes a door that opens and closes in the front-rear direction, a vertical frame positioned outward in the width direction when viewed from the door, a lower frame positioned downward when viewed from the door, and ends in the width direction. and a telescopic device displaced in the width direction, wherein the vertical dimension of the lower frame is smaller than the longitudinal dimension of the vertical frame, and the longitudinal dimension of the lower frame is equal to the longitudinal dimension of the vertical frame. Larger than the dimensions.

In this configuration, the height of the lower frame is smaller than the longitudinal dimension of the vertical frame, and instead the longitudinal dimension of the lower frame is greater than the longitudinal dimension of the vertical frame. Thereby, the rigidity of the lower frame can be maintained above a certain level. Therefore, according to the above configuration, the rigidity of the lower frame can be maintained at a certain level or more while suppressing the vertical dimension of the lower frame.

Said safety fence WHEREIN: The said lower frame may have an inclined surface in which a vertical dimension becomes small as it goes to the front-back direction outer side at front-back direction both edge parts.

According to this configuration, it becomes easier for the wheelchair to climb over the lower frame and pass through the safety fence.

In the above safety fence, a vertical dimension from the lower surface of the lower frame to the lower end of the inclined surface may be 5 mm or less.

According to this configuration, the wheelchair can get over the lower frame more easily.

In the above safety fence, the vertical frame is formed of a vertical frame member, the lower frame is formed of a lower frame member, and the vertical frame member has a vertically extending vertical portion and a vertical portion. a lower horizontal portion that is integrally formed and extends outward in the width direction from the lower end of the vertical portion, and the lower horizontal portion of the vertical frame member may be joined to the upper surface of the lower frame member. .

With this configuration, the lower horizontal portion of the vertical frame member and the lower frame member can be joined over a wide range, so the vertical frame member can be firmly fixed to the lower frame member. As a result, the rigidity of the safety fence can be enhanced.

Said safety fence WHEREIN: The said expansion-contraction apparatus may be attached to the lower horizontal part of the said vertical frame member.

Here, if the telescoping device is attached to the lower frame member, it is necessary to provide a portion for attaching the telescoping device to the lower frame member, so the vertical dimension of the lower frame member must be secured to some extent. On the other hand, according to the above configuration, since it is not necessary to attach the extension device to the lower frame member, the vertical dimension of the lower frame member can be suppressed, and thus the vertical dimension of the lower frame can be suppressed.

According to the above configuration, it is possible to provide a safety fence capable of maintaining the rigidity of the lower frame at a certain level or more while suppressing the vertical dimension of the lower frame.

FIG. 1 is a front view of a safety fence. FIG. 2 is a view of the lower frame member of the safety fence viewed from the width direction.

The safety fence 100 according to the embodiment will be described below. FIG. 1 is a front view of the safety fence 100. FIG. Hereinafter, the vertical direction of FIG. 1 will be referred to as the "vertical direction", the horizontal direction of the page will be referred to as the "width direction", and the direction perpendicular to the page will be referred to as the "front-back direction".

The safety fence 100 according to this embodiment is a fence that restricts passage or entry of infants and pets, and can be installed at the entrance of a passage or a room. As shown in FIG. 1, the safety fence 100 includes a door 10, a first vertical frame 20, a second vertical frame 30, a lower frame 40, and a telescopic device 50. These constituent elements will be described in order below.

<door>
The door 10 of this embodiment has an outer peripheral member 11 , a plurality of interpolating members 12 , an upper supporting member 13 , a lower supporting member 14 and a locking member 15 . The outer peripheral member 11 is a member that forms the outer shell of the door 10, and is formed in a U shape. The interpolating member 12 is a member positioned inside the outer peripheral member 11 and extending in the vertical direction, and has a circular cross section.

The upper support member 13 is provided at the upper end portion of the door 10 on the side of the first vertical frame 20, and is rotatably supported by a receiving member 25 of the first vertical frame 20, which will be described later. The lower support member 14 is provided at the lower end portion of the door 10 on the side of the first vertical frame 20 and is rotatably supported by the lower frame 40 . The rotation axis of the upper support member 13 and the rotation axis of the lower support member 14 are positioned on the same line, and the door 10 opens and closes in the front-rear direction around these rotation axes.

The locking member 15 is provided at the upper end portion of the door 10 on the side of the second vertical frame 30 , and by expanding and contracting in the width direction, it can be locked to a locked member 35 of the second vertical frame 30 described later. can be done. Although the door 10 of this embodiment has a frame structure in which the outer peripheral member 11 and the interpolating member 12 are combined, the door 10 may be formed of a plate member. Further, the door 10 may be made of resin, steel, or cloth.

<First vertical frame>
The first vertical frame 20 is positioned outward in the width direction when viewed from the door 10, and corresponds to a portion of the door frame on the hanger side. The first vertical frame 20 of this embodiment is formed by a first vertical frame member 21 . The first vertical frame member 21 includes a vertical portion 22 extending in the vertical direction, a lower horizontal portion 23 extending from the lower end of the vertical portion 22 toward the outside in the width direction, and an upper portion extending from the upper end of the vertical portion 22 toward the outside in the width direction. a horizontal portion 24; Among them, the vertical portion 22 corresponds to the first vertical frame 20 .

In this embodiment, the vertical portion 22, the lower horizontal portion 23, and the upper horizontal portion 24 are integrally formed of the same member in order to reduce manufacturing costs. The first vertical frame member 21 having a vertical portion 22, a lower horizontal portion 23, and an upper horizontal portion 24 is made of steel, and has the same cross-sectional area and the same cross-sectional shape (rectangular shape) at any portion. . That is, the vertical portion 22, the lower horizontal portion 23, and the upper horizontal portion 24 have the same longitudinal dimension. The vertical portion 22, the lower horizontal portion 23, and the upper horizontal portion 24 may be formed of different members.

A receiving member 25 that rotatably supports the upper supporting member 13 of the door 10 is provided at the upper end portion of the first vertical frame 20 on the side of the door 10 . Further, an interpolating member 26 extending in the vertical direction is provided between the lower horizontal portion 23 and the upper horizontal portion 24 . The interpolating member 26 is made of steel and has a circular cross section. In addition, the 1st vertical frame member 21 may be formed in plate shape. In this case, the portion of the first vertical frame member 21 that faces the door 10 corresponds to the first vertical frame 20 .

<Second vertical frame>
The second vertical frame 30 is positioned outward in the width direction when viewed from the door 10, and corresponds to a portion of the door frame on the door tip side. The second vertical frame 30 of this embodiment is formed by a second vertical frame member 31 . The second vertical frame member 31 includes a vertical portion 32 extending in the vertical direction, a lower horizontal portion 33 extending from the lower end of the vertical portion 32 toward the outside in the width direction, and an upper portion extending from the upper end of the vertical portion 32 toward the outside in the width direction. a horizontal portion 34; Among them, the vertical portion 32 corresponds to the second vertical frame 30 .

In this embodiment, the vertical portion 32, the lower horizontal portion 33, and the upper horizontal portion 34 are integrally formed of the same member in order to reduce manufacturing costs. The second vertical frame member 31 having a vertical portion 32, a lower horizontal portion 33, and an upper horizontal portion 34 is made of steel, and has the same cross-sectional area and the same cross-sectional shape (rectangular shape) at any portion. . That is, the vertical portion 32, the lower horizontal portion 33, and the upper horizontal portion 34 have the same longitudinal dimension. Furthermore, the second vertical frame member 31 is made of the same member as the first vertical frame member 21 . That is, the front-rear dimensions of the first vertical frame 20 and the second vertical frame 30 are the same. The vertical portion 32, the lower horizontal portion 33, and the upper horizontal portion 34 may be formed of different members.

A locked member 35 to which the locking member 15 of the door 10 locks is provided at the upper end portion of the second vertical frame 30 on the side of the door 10 . By locking the locking member 15 to the locked member 35, the door 10 is maintained in a closed state. Further, an interpolating member 36 extending in the vertical direction is provided between the lower horizontal portion 33 and the upper horizontal portion 34 . The interpolating member 36 is made of steel and has a circular cross section. In addition, the 2nd vertical frame member 31 may be formed in plate shape. In this case, the portion of the second vertical frame member 31 that faces the door 10 corresponds to the second vertical frame 30 .

<Bottom frame>
The lower frame 40 is positioned below the door 10 and corresponds to the floor side portion of the door frame. The lower frame 40 is formed by a lower frame member 41 . The lower frame member 41 extends in the width direction, and the central portion in the width direction corresponds to the lower frame 40 . FIG. 2 is a view of the lower frame member 41 viewed from the width direction (from the right side of the paper surface of FIG. 1). In FIG. 2, the telescoping device 50 is drawn with dashed lines. The lower frame member 41 is made of steel, and has the same cross-sectional area and cross-sectional shape at any position in the width direction.

As shown in FIG. 2, the lower frame member 41 is formed flat. Specifically, the vertical dimension A of the lower frame member 41 is smaller than the longitudinal dimension B of the second vertical frame member 31, and the longitudinal dimension C of the lower frame member 41 is the longitudinal dimension of the second vertical frame member 31. larger than B. Therefore, the vertical dimension of the lower frame 40 is smaller than the longitudinal dimension of the first vertical frame 20 and the second vertical frame 30, and the longitudinal dimension of the lower frame 40 is equal to the first vertical frame 20 and the second vertical frame 30. greater than the longitudinal dimension of the

The vertical dimension of the lower frame 40 refers to the dimension from the surface of the lower frame 40 that contacts or faces the floor (lower surface) to the surface that faces the door 10 (upper surface). Moreover, the front-rear dimension of the first vertical frame 20 and the second vertical frame 30 refers to the dimension from the front end to the rear end of the first vertical frame 20 and the second vertical frame 30 . Furthermore, the front-rear dimension of the lower frame 40 refers to the dimension from the front end to the rear end of the lower frame 40 .

Here, in the conventional safety fence, the vertical frame and the lower frame are generally made of the same member, and the front-rear dimension of the vertical frame and the front-rear dimension of the lower frame are generally the same. Therefore, in order to increase the rigidity of the lower frame, the vertical dimension (height) of the lower frame is increased. On the other hand, in this embodiment, different members are used for the vertical frame and the lower frame, and the longitudinal dimension of the lower frame 40 is made larger than the longitudinal dimension of the vertical frames 20, 30 while maintaining rigidity. The vertical dimension (height) of the lower frame 40 is reduced.

The lower frame member 41 is made of steel, and the vertical dimension A of the lower frame member 41 (lower frame 40) is set to 10 mm or more to ensure rigidity, and 15 mm or less so that the wheelchair can climb over. ing. Further, the lower frame member 41 (lower frame 40) has inclined surfaces 42 at both edges in the front-rear direction, the vertical dimension of which decreases outward in the front-rear direction. A vertical dimension D from the lower surface of the lower frame member 41 (lower frame 40) to the lower end of the inclined surface 42 is 5 mm or less.

1, the lower horizontal portion 23 of the first vertical frame member 21 is joined to the upper surface of the lower frame member 41, and the lower horizontal portion 33 of the second vertical frame member 31 is connected to the lower frame member 41. It is attached to the top surface. These connections are made by welding, but bolts or rivets may also be used.

<Extendable device>
The telescoping device 50 is a member positioned at the widthwise end of the safety fence 100 and displaced in the widthwise direction. The extension device 50 of the present embodiment is attached to the width direction end portions of the lower horizontal portion 33 and the upper horizontal portion 34 of the second vertical frame member 31 on the side opposite to the door 10 . As shown in FIG. 2, the lower horizontal portion 33 and the upper horizontal portion 34 of the second vertical frame member 31 are provided with mounting portions 43 having female threads formed therein at the width direction end portions on the side opposite to the door 10 . It is

The telescoping device 50 has a disk-shaped movable contact portion 51 that contacts a wall surface or the like of an installation location, and a mounting shaft 52 that extends perpendicularly to the movable contact portion 51 and has a male thread formed on the outer circumference. there is The mounting shaft 52 of the telescopic device 50 can be inserted while being screwed into the mounting portion 43 of the second vertical frame member 31 . By adjusting the amount of insertion of the attachment shaft 52 into the attachment portion 43, the expansion device 50 can be displaced to any position in the width direction.

In this embodiment, the telescoping device 50 is provided only at one end in the width direction of the safety fence 100 , but the telescoping device 50 may be provided at both ends in the width direction of the safety fence 100 . In other words, the expansion device 50 may be provided not only on the second vertical frame member 31 but also on the first vertical frame member 21 . In this embodiment, fixed contact portions 53 that are not displaced in the width direction are provided at the width direction end portions of the lower horizontal portion 23 and the upper horizontal portion 24 of the first vertical frame member 21 on the side opposite to the door 10 . It is

For example, when installing the safety fence 100 in a passage, the telescopic device 50 is displaced toward the wall surface on the other side of the passage while the fixed contact portion 53 is in contact with the wall surface on one side of the passage. If the contact portion 51 is brought into contact with the wall surface on the other side so as to be strongly pressed, the safety fence 100 can be stretched and fixed. If the installation location is wide, an extension panel or the like may be attached to the first vertical frame member 21 or the second vertical frame member 31 to increase the width dimension of the safety fence 100. good.

<Effects, etc.>
As described above, the safety fence 100 according to the present embodiment includes the door 10 that opens and closes in the front-rear direction, the vertical frames 20 and 30 positioned outward in the width direction when viewed from the door 10, and the lower frame positioned downward when viewed from the door 10. It is provided with a frame 40 and a telescoping device 50 positioned at the end in the width direction and displaced in the width direction. The vertical dimension of the lower frame 40 is smaller than the longitudinal dimension of the vertical frames 20 and 30 , and the longitudinal dimension of the lower frame 40 is greater than the longitudinal dimension of the vertical frames 20 and 30 .

Thus, in this embodiment, instead of keeping the height of the lower frame 40 low, the rigidity of the lower frame 40 is ensured by increasing the dimension of the lower frame 40 in the front-rear direction. As a result, passers-by passing through the safety fence 100 are less likely to stumble over the lower frame 40 and wheelchairs can pass through the safety fence 100 even though the safety fence 100 can be fixed by stretching it.

In addition, in the safety fence 100 according to the present embodiment, the lower frame 40 has inclined surfaces 42 at both edges in the front-rear direction, the vertical dimension of which decreases outward in the front-rear direction. Therefore, the wheelchair can easily climb over the lower frame 40. - 特許庁

Moreover, in the safety fence 100 according to this embodiment, the vertical dimension from the lower surface of the lower frame 40 to the lower end of the inclined surface 42 is 5 mm or less. Considering that the diameter of the front wheel (caster) of the wheelchair is about 125 mm, the wheelchair can climb over the lower frame 40 if the vertical dimension from the lower surface of the lower frame 40 to the lower end of the inclined surface 42 is 5 mm or less. can.

Further, in the safety fence 100 according to the present embodiment, the vertical frames 20 and 30 are formed by the vertical frame members 21 and 31, the lower frame 40 is formed by the lower frame member 41, and the vertical frame members 21 and 31 are formed. has vertical portions 22, 32 extending in the vertical direction, and lower horizontal portions 23, 33 formed integrally with the vertical portions 22, 32 and extending outward in the width direction from the lower ends of the vertical portions 22, 32. is doing. The lower horizontal portions 23 , 33 of the vertical frame members 21 , 31 are joined to the upper surface of the lower frame member 41 .

Thus, in this embodiment, the lower horizontal portions 23, 33 of the vertical frame members 21, 31 are joined to the upper surface of the parallel extending lower frame member 41, so that the vertical frame members 21, 31 are joined to the lower frame member. 41 can be firmly fixed. As a result, the rigidity of the door frame can be increased.

Further, in the safety fence 100 according to this embodiment, the telescopic device 50 is attached to the lower horizontal portions 23, 33 of the vertical frame members 21, 31. As shown in FIG. Here, if the telescopic device 50 is attached to the lower frame member 41, it is necessary to provide a portion for attaching the telescopic device 50 to the lower frame member 41. Therefore, the vertical dimension of the lower frame member 41 must be secured to some extent. must. On the other hand, according to the present embodiment, since it is not necessary to attach the extension device 50 to the lower frame member 41, the vertical dimension of the lower frame member 41 can be reduced, and thus the vertical dimension of the lower frame 40 can be reduced. be able to.

10 Door 20 First vertical frame 21 First vertical frame member 22 Vertical portion 23 Lower horizontal portion 30 Second vertical frame 31 Second vertical frame member 32 Vertical portion 33 Lower horizontal portion 40 Lower frame 41 Lower frame member 42 Inclined surface 50 Expansion and contraction Instrument 100 Safety fence

Claims (4)

A safety fence that regulates the passage or intrusion of infants and pets,
A door that opens and closes in the front-back direction,
a vertical frame formed of steel and positioned outward in the width direction when viewed from the door;
a lower frame made of steel and positioned below the door;
A pair of upper and lower telescoping devices that are positioned at the ends in the width direction and are displaced in the width direction to fix the safety fence,
The vertical dimension of the lower frame is smaller than the longitudinal dimension of the vertical frame,
The front-rear dimension of the lower frame is larger than the front-rear dimension of the vertical frame,
The vertical frame is formed of a vertical frame member,
The lower frame is formed of a lower frame member,
The lower frame member is positioned below the door and below the vertical frame member and is formed in a straight line,
The lower frame has an inclined surface whose vertical dimension decreases toward the outer side in the front-rear direction, and is formed such that the front-rear dimension of the upper surface is smaller than the front-rear dimension of the lower surface ,
The safety fence, wherein the lower telescopic device of the pair of upper and lower telescopic devices is attached to the vertical frame member. The safety fence according to claim 1, wherein the vertical dimension of the lower frame is 10 mm or more and 15 mm or less. The vertical frame member has a vertical portion extending in the vertical direction, and a lower horizontal portion formed integrally with the vertical portion and extending outward in the width direction from the lower end of the vertical portion,
3. The safety fence according to claim 1, wherein the lower horizontal portion of said vertical frame member is joined to the upper surface of said lower frame member. 4. The safety fence of claim 3, wherein said lower telescoping device is attached to the lower horizontal portion of said vertical frame member.

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