JP2021141930A - Safety fence - Google Patents

Abstract

To provide a safety fence in which a movable range of a door is inhibited.SOLUTION: A safety fence 100 according to an embodiment of the present invention comprises a door frame 10 attachable/detachable to/from a passage entrance 101, a door 20 attached to the door frame 10, and a guide member 30 provided in the door 20. The door frame 10 comprises: a first vertical frame part 11 located on one side in a width direction of the door frame 10, and extending in a vertical direction; a second vertical frame part 12 located on the other side in the width direction of the door frame 10, and extending in the vertical direction; and a rail lower frame part 13 connecting a lower end of the first vertical frame part 11 and a lower end of the second vertical frame part 12. The door 20 comprises a first panel 21 of which a width direction base portion is rotatably attached to the door frame 10, and a second panel 22 of which a width direction base portion is rotatably connected to a width direction tip portion of the first panel 21. The guide member 30 is provided in a lower end portion of the second panel 22, and constituted so as to be movable along the rail lower frame part 13.SELECTED DRAWING: Figure 1

Description

The present invention relates to a safety fence that regulates the passage or invasion of infants and pets.

Some safety fences that regulate the passage or invasion of infants and pets are provided with a door (see, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2014-166262

The door of the safety fence is generally composed of one panel. In this case, the panel constituting the door becomes large, and the movable range of the door becomes wide. As a result, the installation location of the safety fence may be restricted. Based on this, an object of the present invention is to provide a safety fence in which the movable range of the door is suppressed.

The safety fence according to one aspect of the present invention includes a door frame that can be attached to and detached from the passage opening, a door attached to the door frame, and a guide member provided on the door, and the door frame is the door. A first vertical frame portion located on one side in the width direction of the frame and extending in the vertical direction, a second vertical frame portion located on the other side in the width direction of the door frame and extending in the vertical direction, and a lower end of the first vertical frame portion. And a rail lower frame portion connecting the lower ends of the second vertical frame portion, and the door has a first panel in which a base end portion in the width direction is rotatably attached to the door frame, and the first door. It has a second panel in which the widthwise base end portion is rotatably connected to the width direction tip portion of the panel, and the guide member is provided at the lower end portion of the second panel and is provided with the rail lower frame portion. It is configured to be able to move along.

In this safety fence, since the door is composed of the first panel and the second panel, the door can be opened and closed by folding. As a result, the movable range of the door can be suppressed. Further, in the above safety fence, since the guide member provided at the lower end portion of the second panel moves along the rail lower frame portion, the door can be opened and closed stably. Moreover, since the guide member is moved by using the rail lower frame portion which is a part of the door frame, it is not necessary to provide a rail for moving the guide member on the floor or the ceiling.

In the above safety fence, the second panel has a larger width direction dimension than the first panel, and the width direction dimension from the width direction base end portion of the second panel to the portion where the guide member is provided is. It may be equal to the width direction dimension of the first panel.

According to this configuration, it is possible to increase the widthwise dimension of the entire door while suppressing the movable range of the door.

In the safety fence, a first gear is provided at the widthwise tip portion of the first panel, and a second gear that meshes with the first gear is provided at the widthwise proximal end portion of the second panel. The second panel may be connected to the first panel via the first gear and the second gear.

According to this configuration, the door can be opened and closed while maintaining a symmetrical state between the first panel and the second panel with respect to the reference plane that passes through the first panel and the second panel and is perpendicular to the width direction. Therefore, the door can be opened and closed smoothly.

In the above safety fence, the width direction dimension of the second panel may be 1.1 times or more and 3 times or less of the width direction dimension of the first panel.

According to this configuration, it is possible to increase the widthwise dimension of the entire door while suppressing the movable range of the door.

According to the above configuration, it is possible to provide a safety fence in which the movable range of the door is suppressed.

FIG. 1 is a front view of the safety fence. FIG. 2 is an exploded perspective view of the connecting mechanism. FIG. 3 is a plan view of the safety fence and is a diagram for explaining the opening / closing operation of the door.

Hereinafter, the safety fence 100 according to the embodiment will be described. FIG. 1 is a front view of the safety fence 100. Hereinafter, the left-right direction of the paper surface in FIG. 1 is referred to as a "width direction". Further, the term "width direction dimension" means the width direction dimension when the door 20 described later is closed.

The safety fence 100 according to the present embodiment can be installed at the passage opening 101, and is a fence for restricting the passage or invasion of infants and pets. As shown in FIG. 1, the safety fence 100 according to the present embodiment includes a door frame 10, a door 20, and a guide member 30. Hereinafter, these components will be described in order.

<Door frame>
The door frame 10 is a member that is arranged so as to surround the door 20 and to which the door 20 is attached. The door frame 10 of the present embodiment is formed in a U shape when viewed from the front, and has a first vertical frame portion 11, a second vertical frame portion 12, and a rail lower frame portion 13. The first vertical frame portion 11 is located on one side (left side of the paper surface) in the width direction of the door frame 10 and extends in the vertical direction. The second vertical frame portion 12 is located on the other side (right side of the paper surface) in the width direction of the door frame 10 and extends in the vertical direction. The rail lower frame portion 13 is located in the lower portion of the door frame 10, and connects the lower end of the first vertical frame portion 11 and the lower end of the second vertical frame portion 12.

Further, the door frame 10 has a plurality of fixing members 14 for fixing the door frame 10 to the passage opening 101. The fixing member 14 is provided in the upper portion and the lower portion of the outer end portion in the width direction of the first vertical frame portion 11, and is provided in the upper portion and the lower portion of the outer end portion in the width direction of the second vertical frame portion 12. Has been done. The fixing member 14 has a disk-shaped contact portion 16 and a screw portion 17 fixed to the contact portion 16 and extending in the width direction.

The screw portion 17 can be inserted into the first vertical frame portion 11 and the second vertical frame portion 12 while being tightened. By adjusting the insertion amount of the screw portion 17, the contact portion 16 can be moved in the width direction with respect to the first vertical frame portion 11 and the second vertical frame portion 12. If the contact portion 16 is moved away from the first vertical frame portion 11 and the second vertical frame portion 12 and pressed against the wall surface of the passage opening 101, the door frame 10 can be fixed to the passage opening 101. Further, if the contact portion 16 is moved in the direction closer to the first vertical frame portion 11 and the second vertical frame portion 12 and separated from the passage opening 101, the door frame 10 can be removed from the passage opening 101.

<Door>
The door 20 has a first panel 21 and a second panel 22. The first panel 21 is formed in a grid pattern, and the base end portion in the width direction (the left end portion of the paper surface in FIG. 1) is rotatably attached to the door frame 10. Specifically, of the widthwise base end portion of the first panel 21, the upper portion is rotatably held via the door holding member 15 provided in the first vertical frame portion 11, and the lower portion is below the rail. It is rotatably held by the frame portion 13.

The second panel 22 is formed in a grid pattern, and the widthwise base end portion (the left end portion of the paper surface in FIG. 1) can be rotated to the width direction tip portion (the right end portion of the paper surface in FIG. 1) of the first panel 21. Is connected to. In the present embodiment, the second panel 22 is connected to the first panel via the connecting mechanism 40. The connecting mechanism 40 is provided at two locations, an upper end side portion and a lower end side portion of the door 20.

FIG. 2 is an exploded perspective view of the connecting mechanism 40 located at the upper end side portion of the door 20. The connecting mechanism 40 located at the lower end side portion of the door 20 is vertically symmetrical with the connecting mechanism 40 located at the upper end side portion. As shown in FIG. 2, the connecting mechanism 40 includes a first gear 41, a second gear 42, a bearing member 43, and a gear accommodating member 44.

The first gear 41 is fixed to the tip portion in the width direction of the first panel 21 (the lower surface of the portion protruding toward the second panel 22 in FIG. 2) via a support rod, and is fixed in the width direction of the first panel 21. It is arranged with a gap in the vertical direction with respect to the tip portion. Further, a first shaft piece 45 is provided on a surface (upper surface in FIG. 2) of the first panel 21 opposite to the first gear 41 at the tip portion in the width direction.

The second gear 42 is fixed to the base end portion in the width direction of the second panel 22 (the lower surface of the portion protruding toward the first panel 21 in FIG. 2) via the support rod, and the width of the second panel 22. It is arranged with a gap in the vertical direction with respect to the directional base end portion. A second shaft piece 46 is provided on the surface (upper surface in FIG. 2) of the second panel 22 opposite to the second gear 42 at the base end portion in the width direction.

The bearing member 43 has an outer plate 47 and a middle plate 48. The outer plate 47 is formed with a first shaft hole 51 into which the first shaft piece 45 described above is inserted and a second shaft hole 52 into which the second shaft piece 46 is inserted. The middle plate 48 is connected to the outer plate 47 via the connecting plate 53. The middle plate 48 has a first notch 54 into which a support rod (not shown) connecting the widthwise tip portion of the first panel 21 and the first gear 41 is inserted, and the widthwise tip portion and the second panel 22 of the second panel 22. A second notch 55 into which a support rod (not shown) connecting the two gears 42 is inserted is formed.

The gear accommodating member 44 accommodates the first gear 41 and the second gear 42 in a state of being meshed with each other. The gear accommodating member 44 of the connecting mechanism 40 located at the upper end side portion of the door 20 is connected to the gear accommodating member 44 of the connecting mechanism 40 located at the lower end side portion of the door 20 via an intermediate shaft member 56 extending in the vertical direction. (See Fig. 1).

As shown in FIG. 1, the second panel 22 has a larger width direction dimension than the first panel 21. Specifically, the widthwise dimension W2 of the second panel 22 is approximately twice the widthwise dimension W1 of the first panel 21. Further, a locking member 23 is provided above the tip portion in the width direction of the second panel 22. The locking member 23 is configured to be locked to the locked portion 18 provided on the second vertical frame portion 12 when the door 20 is closed (the state shown in FIG. 1). By locking the locking member 23 to the locked portion 18, the door 20 is maintained in a closed state.

<Guide member>
The guide member 30 is a member that moves along the rail lower frame portion 13 and guides the second panel 22. In other words, the guide member 30 is a member that keeps the movement locus of the second panel 22 constant. The guide member 30 includes a main body portion 31, two rollers 32, and a support shaft member 33.

The main body portion 31 is configured to cover the rail lower frame portion 13 from above, and has an inverted U-shape when viewed from the width direction. Each roller 32 extends in a direction perpendicular to the width direction (direction perpendicular to the paper surface of FIG. 1). Each roller 32 is rotatably supported by the main body 31 inside the main body 31 and is configured to roll on the upper surface of the rail lower frame portion 13. The support shaft member 33 extends in the vertical direction and connects the upper surface of the main body 31 and the lower end of the second panel 22. Further, the support shaft member 33 is rotatably connected to the second panel 22. That is, the support shaft member 33 rotatably supports the second panel 22. A spring may be interposed between the guide member 30 and the second panel 22, and the guide member 30 may be configured to be movable in the vertical direction with respect to the second panel 22.

Here, the width direction dimension W3 from the width direction base end portion of the second panel 22 to the portion where the guide member 30 is provided is equal to the width direction dimension W1 of the first panel 21. More precisely, the widthwise dimension from the central axis of the second gear 42 to the central axis of the support shaft member 33 is from the rotation axis when the first panel 21 rotates with respect to the first vertical frame portion 11. It is equal to the width direction dimension of the first gear 41 up to the central axis.

<Opening and closing operation and action effect>
Next, the opening / closing operation and the effect of the door 20 of the safety fence 100 according to the present embodiment will be described. FIG. 3 is a plan view of the safety fence 100 and is a diagram for explaining the opening / closing operation of the door 20. FIG. 3A shows a state in which the door 20 is closed, FIG. 3B shows a state in which the door 20 is slightly opened, and FIG. 3C shows a state in which the door 20 is wide open. ..

As shown in FIG. 3, the door 20 of the present embodiment has a first panel 21 and a second panel 22, and is opened so as to be bent at a boundary portion (connecting mechanism 40) of these panels. Therefore, the movable range of the door 20 can be narrowed as compared with the case where the door 20 is formed by one panel. Therefore, the degree of freedom in installing the safety fence 100 is improved.

Further, when the door 20 is opened, the guide member 30 moves along the rail lower frame portion 13, and the second panel 22 moves so as to draw a constant trajectory. Therefore, as a result of suppressing the door 20 from bending in an unintended direction, it is possible to suppress the expansion of the movable range of the door 20.

Further, the width direction dimension W3 from the width direction base end portion of the second panel 22 to the portion where the guide member 30 is provided is equal to the width direction dimension W1 of the first panel 21. In addition to this, the second panel 22 is connected to the first panel 21 via the first gear 41 and the second gear 42. Therefore, the door 20 can be opened and closed while maintaining a symmetrical state between the first panel 21 and the second panel 22 with respect to the reference plane that passes through the first panel 21 and the second panel 22 and is perpendicular to the width direction. .. As a result, the door 20 can be opened and closed smoothly.

Further, the second panel 22 has a larger width direction dimension than the first panel 21. Therefore, the width direction dimension of the entire door 20 can be increased while suppressing the movable range of the door 20.

<Modification example>
The embodiment described above is only one embodiment of the present invention, and the safety fence according to the present invention may have a configuration different from that of the above-described embodiment. For example, in the safety fence 100 according to the embodiment, the widthwise dimension W2 of the second panel 22 is approximately twice the widthwise dimension W1 of the first panel 21, but the widthwise dimension W2 of the second panel 22 is. The width direction dimension W1 of the first panel 21 may be 1.1 times or more and 3 times or less. Even in this case, the width direction dimension of the door 20 can be increased while suppressing the movable range of the door 20. However, the width direction dimension W2 of the second panel 22 and the width direction dimension W1 of the first panel 21 may be the same.

Further, in the safety fence 100 according to the embodiment, the guide member 30 has two rollers 32, and these rollers 32 are configured to roll on the upper surface of the rail lower frame portion 13. However, the guide member 30 does not have to be configured in this way. For example, a groove extending in the longitudinal direction is formed on the upper surface of the rail lower frame portion 13, and the guide member 30 may be a rod-shaped member that moves in the groove.

Further, in the above-described embodiment, the first panel 21 and the second panel 22 are connected via the first gear 41 and the second gear 42, but the first panel 21 and the second panel 22 are the first. It may be connected without passing through the gear 41 and the second gear 42. Further, the first panel 21 and the second panel 22 may be directly connected without the connection mechanism 40.

10 Door frame 11 1st vertical frame 12 2nd vertical frame 13 Rail lower frame 20 Door 21 1st panel 22 2nd panel 30 Guide member 40 Connecting mechanism 41 1st gear 42 2nd gear 100 Safety fence 101 Passage entrance

Claims (4)

A door frame that can be attached and detached at the entrance of the passage,
The door attached to the door frame and
A guide member provided on the door is provided.
The door frame is
The first vertical frame portion located on one side in the width direction of the door frame and extending in the vertical direction,
A second vertical frame portion located on the other side in the width direction of the door frame and extending in the vertical direction,
It has a rail lower frame portion that connects the lower end of the first vertical frame portion and the lower end of the second vertical frame portion.
The door is
A first panel whose base end portion in the width direction is rotatably attached to the door frame, and
It has a second panel in which a base end portion in the width direction is rotatably connected to a tip portion in the width direction of the first panel.
The guide member is a safety fence provided at the lower end portion of the second panel and configured to be movable along the rail lower frame portion. The second panel has a larger width direction dimension than the first panel.
The safety fence according to claim 1, wherein the width direction dimension from the width direction base end portion of the second panel to the portion where the guide member is provided is equal to the width direction dimension of the first panel. A first gear is provided at the tip portion in the width direction of the first panel.
A second gear that meshes with the first gear is provided at the base end portion in the width direction of the second panel.
The safety fence according to claim 2, wherein the second panel is connected to the first panel via the first gear and the second gear. The safety fence according to claim 2 or 3, wherein the width direction dimension of the second panel is 1.1 times or more and 3 times or less of the width direction dimension of the first panel.

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