JP2010035733A - Evacuation device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent the occurrence of noise and breakage by the vibration of an upper lid by a strong wind, to prevent the upper lid and a lower lid from being carelessly opened, and to easily open the upper lid when evacuating. <P>SOLUTION: In an evacuation device provided with a storage frame 2 fixed to the opening of a slab, the upper lid 3 and the lower lid openably and closably pivoted to the storage frame, and a ladder to be extended downwards when the upper lid and the lower lid are opened, a locking member 30 provided to the free end side of the upper lid is formed of an elastically deformable member including a suspension piece 32 suspended from the end part of a fixed piece 31 fixed to the upper lid, an operation piece 33 extended from the lower end of the suspension piece toward the outer part on the free end side of the upper lid, and an engaging hole 35 provided to the suspension piece. An engaging member 40 which can be engaged with the locking member in the closed state of the upper lid is provided with an erection piece 41 fixed to the peripheral wall of the storage frame and an inclined engaging projection part 43 erected from the erection piece in an inclined shape and capable of being engaged with the engaging hole. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an evacuation device. More specifically, the present invention relates to an upper lid and a lower lid that are pivotably mounted on a storage frame provided on a veranda or the like, and extends downward when the upper lid and the lower lid are opened. The present invention relates to an evacuation device including a ladder.

  Generally, as this kind of evacuation device, a storage frame fixed to an opening provided in a slab such as a veranda, and an upper lid and a lower lid pivotally attached to the floor surface side and the ceiling surface side of the storage frame, respectively It is known to have a pantograph-type ladder that is folded and stored in a storage frame and extends to the floor below or near the floor when the upper and lower lids are opened. This evacuation device generally has an interlocking structure in which the lower lid is opened as the upper lid is opened.

  In the evacuation device configured as described above, the upper lid is struck by strong winds, causing the problem of generating noise by repeating slight opening and closing vibrations, and the lower lid is opened in conjunction with the opening of the upper lid. There was a problem that the opening was opened and it was dangerous.

Therefore, as a means for solving the above-described problem, one that engages the upper lid and the storage frame can be considered. Conventionally, for example, a receiving member having an engagement hole provided in one of the upper lid and the storage frame where the upper lid contacts and separates, and a receiving member provided in the other of the upper lid and the storage frame and detachably engaged with the engagement hole. And an engagement / disengagement mechanism including an elastic engagement piece that urges the engagement protrusion toward the engagement hole. Further, the operating portion is exposed from the upper lid and the storage frame in the closed state of the upper lid, and an elastic engagement piece provided on the storage frame, and one engagement provided on the upper lid and provided on the elastic engagement piece Comprising an engagement / disengagement mechanism that maintains the engagement state between one engagement portion and the other engagement portion when the upper lid is closed. Is known (see, for example, Patent Document 1).
JP-A-11-290470 (Claims, FIGS. 6, 7, and 9)

  However, in a structure having an engagement / disengagement mechanism including a receiving member having an engagement hole and an elastic engagement piece having an engagement projection that is detachably engaged with the engagement hole, the structure is elastic with the reception member. In order to open the upper lid by lifting the free end of the upper lid that is not directly involved in the engaging portion of the engaging piece, there is a problem that a force is required to open the upper lid.

  Further, in a structure having an engagement / disengagement mechanism that releases the engagement between the elastic engagement piece and the engagement portion by operating the operation portion, the engagement between the elastic engagement piece and the engagement portion is operated by operating the operation portion. After releasing the joint, the free end of the upper lid is lifted to open the upper lid, which may increase the opening operation and hinder evacuation.

  The present invention has been made in view of the above circumstances, and can prevent generation and breakage of noise due to vibration of the upper lid caused by being blown by strong winds, and also prevents inadvertent opening of the upper and lower lids. In addition, it is an object of the present invention to provide an evacuation device that can easily open the upper lid during evacuation.

  In order to solve the above problems, an evacuation device of the present invention includes a storage frame fixed to an opening provided in a slab such as a veranda, an upper lid and a lower lid pivotally attached to the storage frame so as to be openable and closable, A ladder provided in a side of the free end side of the upper lid, wherein the ladder is folded and stored in the storage frame and includes a ladder that extends downward when the upper lid and the lower lid are opened. A member, and an engagement member that is provided on a peripheral wall of the storage frame and is engageable with the locking member in a closed state of the upper lid, and the locking member is fixed to a back surface of the upper lid. A hanging piece hanging from the end of the fixed piece, an operating piece extending from the lower end of the hanging piece toward the free end side of the upper lid, and an engagement hole provided in the hanging piece. The engaging member is formed of an elastically deformable member, An upright piece fixed to the peripheral wall of the storage frame, and an inclined engagement convex portion that stands upright from the upright piece and is engageable with the engagement hole. 1).

  With this configuration, when the upper lid is closed, the engaging hole of the locking member provided on the upper lid and the inclined engaging convex portion of the engaging member provided on the storage frame are engaged. The upper lid can be prevented from vibrating due to strong wind, and the upper lid and the lower lid can be prevented from opening. Further, at the time of evacuation, the upper lid can be opened simultaneously with the operation portion being operated to release the engagement between the engagement hole and the inclined engagement convex portion.

  In the present invention, the engagement hole is provided across the fixed piece and the hanging piece, and is formed in a tapered shape that becomes narrower from an adjacent corner of the fixed piece and the hanging piece toward the lower end side of the hanging piece. (Claim 2).

  With this configuration, in the locking member formed of a member that can be elastically deformed, the dimension (L1) other than the engagement hole at the adjacent corner of the fixed piece and the hanging piece is set to the hanging piece and the operating piece. The dimension (L2) other than the engaging hole at the adjacent corner of the engaging portion can be reduced, and the locking member can be easily deformed, that is, disengaged when the operating portion is opened.

  In the present invention, it is preferable that a covering member having a color for a mark is attached to at least a portion outside the upper lid of the operation piece of the engaging member.

  With this configuration, the evacuee can easily confirm the position of the operation unit during evacuation.

  Since the evacuation device of the present invention is configured as described above, the following effects can be obtained.

  (1) According to the first aspect of the present invention, when the upper lid is closed, it is possible to suppress the vibration of the upper lid due to the strong wind and to prevent the upper lid and the lower lid from being opened. It is possible to prevent the occurrence of noise and damage due to the vibration of the upper lid due to being beaten by the upper lid, and it is possible to prevent inadvertent opening of the upper lid and the lower lid. Further, at the time of evacuation, the upper lid can be opened at the same time as the operation portion is operated to release the engagement between the engagement hole and the inclined engagement convex portion, so that the upper lid can be easily opened.

  (2) According to the invention described in claim 2, since the locking member can be easily deformed, that is, disengaged when the operation portion is opened, in addition to (1) above, Opening can be facilitated.

  (3) According to the invention described in claim 3, since the refugee can easily confirm the position of the operation unit at the time of evacuation, the upper lid can be opened without hesitation in the event of an emergency panic. it can.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the best embodiment of the present invention will be described in detail with reference to the accompanying drawings.

  FIG. 1 is a perspective view showing a use state of an evacuation device according to the present invention, FIG. 2 is a sectional view showing a non-use state of the evacuation device according to the present invention, that is, a closed state of an upper lid, and FIG. It is an expanded sectional view which expands and shows a part.

  The evacuation device of the present invention includes a rectangular storage frame 2 fitted and fixed to an opening 1a provided in a slab 1 such as a floor or a veranda, and a floor surface side and a ceiling surface of one side of the storage frame 2 An upper lid 3 and a lower lid 4 that are pivotally attached to the sides, a pantograph-type ladder 6 that is folded and stored in the storage frame 2 and extends to the lower floor or the vicinity thereof, and an extension lowering speed of the ladder 6 And a slow lift 7 for pulling up and storing the ladder 6, an opening / closing interlocking mechanism 10 for opening and closing the upper lid 3 and the lower lid 4 in conjunction with each other, and a free end side of the upper lid 3, that is, opposite to the pivotally attached portion The open end side and the latch mechanism 20 provided on the storage frame 2 constitute a main part.

  In this case, the ladder 6 is constructed such that a plurality of stepping horizontal bars 6b are horizontally placed between a pair of expansion and contracting bodies 6c pivotally attached to the plurality of vertical bars 6a in a pantograph manner, and are placed in the storage frame 2. It is folded and stored, and can extend to the lower floor or its vicinity. Further, a hoisting wire 8 is connected between a horizontal beam 6b laid between the lower vertical beam 6a and a take-up drum 7a of the gentler 7.

  The upper lid 3 and the lower lid 4 are pivotally attached to one end of the storage frame 2 via hinges 3a and 4a, respectively, so that both sides of the upper lid 3 and the lower lid 4 and the storage frame 2 face each other. The upper lid 3 and the lower lid 4 can be opened and closed in conjunction with each other by a pair of opening / closing interlocking mechanisms 10 attached to the peripheral wall 2a. A handle portion 5 is fixedly provided on the inner surface side of the center of the upper lid 3.

  1 to 4, the latch mechanism 20 is provided on the locking member 30 provided on the free end side of the upper lid 3 and the peripheral wall 2a of the storage frame 2, and in the closed state of the upper lid 3, An engaging member 40 that can engage with the locking member 30 is provided.

  The locking member 30 extends from the end of a fixed piece 31 fixed to the back surface of the upper lid 3 by spot welding, for example, and from the lower end of the hanging piece 32 toward the free end side outward of the upper lid 3. An operating piece 33 that is bent in a substantially crank shape so that the operating portion 34 at the front end that exists outside the upper lid 3 is positioned upward, and an engagement hole 35 that is provided in the hanging piece 32. An elastically deformable member having, for example, spring steel is formed.

  In this case, as shown in FIG. 4A, the engagement hole 35 is provided across the fixed piece 31 and the hanging piece 32, and the fixed piece 31 side is an adjacent corner of the fixed piece 31 and the hanging piece 32. A first hole 35a cut out in a U-shape from 36a and an end of the first hole 35a, that is, an adjacent corner 36a of the fixing piece 31 and the hanging piece 32, toward the lower end side of the hanging piece 32. And a second hole portion 35b formed in a tapered shape.

  By forming the engagement hole 35 in this way, the dimension (L1) other than the engagement hole 35 of the adjacent corner portion 36a of the fixed piece 31 and the hanging piece 32 is set to the adjacent corner portion of the hanging piece 32 and the operating piece 33. Since the dimension (L2) other than the engagement hole 35 of 36b can be reduced, the deformation of the locking member 30 at the time of the lid opening operation of the operation portion 34, that is, the engagement release can be facilitated.

  Further, a covering member 37 made of, for example, a synthetic resin having a color for a mark is attached to the operation portion 34 that is present on the outer side of the upper lid 3 in the operation piece 33 of the locking member 30. Note that the covering member 37 only needs to be attached to at least a portion outside the upper lid 3 of the operation piece 33.

  In this way, by attaching the covering member 37 made of, for example, a synthetic resin to the operation portion 34 existing at least on the outer side of the upper lid 3 in the operation piece 33 of the locking member 30, the evacuation is performed. At times, the evacuees can easily confirm the position of the operation unit.

  On the other hand, the engaging member 40 is formed of, for example, a steel plate member, and an upright piece 41 fixed to the peripheral wall of the storage frame 2 and a horizontal piece bent at a substantially right angle from the lower end of the upright piece 41. 42, and the upright piece 41 is provided with an inclined engagement convex portion 43 that can be engaged with an engagement hole 35 that is inclined upward. In this case, the inclined engagement convex portion 43 is formed in a bowl shape by cutting and raising the standing piece 41, for example.

  In the engaging member 40 formed as described above, the standing piece 41 is fixed to the outer surface of the peripheral wall 2 a of the storage frame 2 by, for example, spot welding, and the horizontal piece 42 is connected to the lower end of the peripheral wall 2 a of the storage frame 2. For example, it is fixed to the upper surface by spot welding.

  According to the evacuation device according to the present invention having the latch mechanism 20 configured as described above, when not in use, that is, when the upper lid 3 is closed, as shown in FIGS. The engaging hole 35 of the locking member 30 provided in the upper lid 3 engages with the inclined engaging convex portion 43 of the engaging member 40 provided in the storage frame 2. Thereby, it can suppress that the upper cover 3 vibrates by a strong wind, and can prevent that the upper cover 3 and the lower cover 4 open | release.

  Further, at the time of evacuation, as shown in FIG. 5 (b), when the operation part 34 is gripped and operated upward, the locking member 30 is deformed by the adjacent corner part 36 a of the fixed piece 31 and the hanging piece 32. The engagement between the engagement hole 35 and the inclined engagement convex portion 43 is released. Further, the upper lid 3 is opened by operating the operation unit 34 upward (see FIG. 5C). Thereby, the engagement between the engagement hole 35 and the inclined engagement convex portion 43 can be released, and at the same time, the upper lid 3 can be opened. During evacuation, the evacuees can easily confirm the position of the operation unit 34 by the covering member 37 with the color for the mark, so that the upper lid 3 can be opened without hesitation in the event of an emergency panic. can do.

  If the hand is released from the operation portion 34 after the upper lid 3 is opened, the locking member 30 is restored to its original shape. Therefore, when the upper lid 3 is closed, the base end portion of the operation piece 33 is tilted engaging convex portion. It is elastically deformed along 43 and is restored in a state of overcoming the inclined engagement convex portion 43, and the engagement hole 35 and the inclined engagement convex portion 43 are engaged.

  In addition, although the said embodiment demonstrated the case where the locking member 30 was formed with spring steel, as long as it can be elastically deformed similarly to the above-mentioned, another material, for example, a synthetic resin member, may be used. .

It is a perspective view which shows the use condition of the evacuation apparatus which concerns on this invention. It is sectional drawing which shows the closed state of the upper cover in this invention. It is an expanded sectional view of the I section of FIG. It is the perspective view (a) which shows the latching member in this invention, and the perspective view (b) which shows an engagement member. It is sectional drawing which shows the open procedure of the upper cover in this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Slab 1a Opening part 2 Storage frame 2a Perimeter wall 3 Upper cover 4 Lower cover 6 Ladder 20 Latch mechanism 30 Locking member 31 Fixing piece 32 Hanging piece 33 Operation piece 34 Operation part 35 Engagement hole 36a, 36b Adjacent corner part 37 Covering member 40 Engagement member 41 Standing piece 42 Horizontal piece 43 Inclined engagement convex part L1 Dimension other than engagement hole 35 of adjacent corner part 36a Dimension other than engagement hole 35 of adjacent corner part 36b

Claims (3)

A storage frame fixed to an opening provided in a slab such as a veranda, an upper lid and a lower lid pivotally attached to the storage frame so as to be openable and closable, and folded and stored in the storage frame and the upper lid and In an evacuation device comprising a ladder that extends downward when the lower lid is opened,
A locking member provided on a free end side of the upper lid, and an engagement member provided on a peripheral wall of the storage frame and engageable with the locking member in a closed state of the upper lid,
The locking member is a hanging piece that hangs down from an end of a fixed piece that is fixed to the back surface of the upper lid, and an operation piece that extends from the lower end of the hanging piece toward the free end side of the upper lid, Formed by an elastically deformable member having an engagement hole provided in the hanging piece,
The engaging member includes an upright piece fixed to the peripheral wall of the storage frame, and an inclined engaging convex portion that is inclined from the upright piece and can be engaged with the engaging hole.
An evacuation device characterized by that. The evacuation device according to claim 1,
The engagement hole is provided across the fixed piece and the hanging piece, and is formed in a tapered shape that becomes narrower from an adjacent corner of the fixed piece and the hanging piece toward the lower end side of the hanging piece. Evacuation device characterized by. The evacuation device according to claim 1 or 2,
An evacuation apparatus comprising: a cover member provided with a color for a mark is attached to at least a portion outside the upper lid of the operation piece of the engagement member.

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