JP3091888B2 - Mounting structure of the lower lid in the evacuation device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting structure for a lower lid in an evacuation device, and more particularly, to a storage frame mounted on a hole formed in a slab such as a floor or a veranda, and this storage frame. Of the lower lid mounting structure in an evacuation device that includes an evacuation ladder that is folded and stored inside, and an upper lid and a lower lid that are pivotally attached to the floor side and the ceiling side of the storage frame, respectively. It is related to.

[0002]

2. Description of the Related Art In general, evacuation devices of this type include floors,
A storage frame attached to a hole formed in a slab such as a veranda, upper and lower lids pivotally connected to the floor side and the ceiling side of the storage frame, respectively, and folded and stored in the storage frame. And a ladder that extends to or near the floor below when the upper and lower lids are opened.

[0003] In the evacuation device configured as described above, generally, in order to mount the lower lid on the ceiling side of the storage frame, as shown in FIG.
Is inserted, and the support pin b is inserted into a hole provided in the storage frame c in advance to rotatably support the lower lid a in the storage frame c.

[0004]

However, in this type of conventional lower lid mounting structure, while the first supporting pin b is first mounted, the other supporting pin side of the lower lid a is inclined. As a result, the lower lid a becomes unstable. Therefore, in order to prevent the inclination of the lower cover a,
The lower lid a must be supported by hands, feet, jigs, or the like so as not to become unstable.

Therefore, there is a problem that not only is it troublesome to attach the lower cover a, but also there is a possibility that the attachment is insufficient, and there is a danger due to the work of attaching at a high place. In addition, since the support pins b are simply fitted into the holes provided in the storage frame c, the joint distance between the storage frame c and the lower lid a is shifted, and the storage frame and the lower lid come into contact with each other to lower the joint. In addition to hindering the opening and closing of the lid a, there were also problems such as damage or corrosion due to friction.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and provides a mounting structure of a lower lid of an evacuation device in which the lower lid can be easily and reliably mounted in a stable state by preventing displacement of the lower lid during mounting. It is intended to do so.

[0007]

In order to achieve the above object, the lower lid mounting structure in the evacuation device according to the present invention comprises:
A storage frame attached to a hole formed in a slab such as a floor or a veranda, upper and lower lids pivotally attached to the floor side and the ceiling side of the storage frame, respectively, and folded in the storage frame. When the upper and lower lids are opened and the upper and lower lids are opened, the evacuation device is provided with a ladder extending to a floor below or at or near the floor, and is fitted to a support shaft projecting from the storage frame. A fixing receiving portion of the lower lid is formed in the mounting member, and a hook-shaped notch hole rotatably engaged with the support shaft is formed in the lower lid, and a fixing receiving portion of the mounting member is formed in the fixing receiving portion of the mounting member. A fixing portion to be fixed is formed, and the fixing portion of the lower lid and the fixing receiving portion of the mounting member are fixed by fixing means, and the notch hole is loosely fitted to the support shaft via a mounting member. Things.

In the present invention, as long as the mounting member can be inserted into the support shaft, its mounting form may be arbitrary. Preferably, at least one of the support shaft and the mounting member is fitted in the axial direction of the mounting member. It is better to form a positioning part for regulating the position. In this case, the positioning portion is formed by providing a step portion, a projection, or the like on the support shaft, or by providing a burring portion, a projection, or the like protruding in the axial direction of the support shaft on the fitting portion of the mounting member to the support shaft. Can be.

The fixing means may be a fixing means such as a rivet as long as the fixing means for fixing the fixing receiving portion of the mounting member and the fixing portion of the lower lid can be used. It is better if possible.

[0010]

According to the lower lid mounting structure of the present invention configured as described above, after the mounting member is fitted to the support shaft protruding from the storage frame, the notch hole of the lower lid is engaged with the support shaft. By fixing the fixing portion of the lower lid and the fixing receiving portion of the mounting member with fixing means, the lower lid can be prevented from shifting at the time of mounting, and the lower lid can be mounted in a stable state.
The lower lid can be securely attached.

Further, by forming the positioning portion of the mounting member on at least one of the support shaft and the mounting member, the axial movement of the support shaft of the mounting member can be restricted, so that the joint distance between the storage frame and the lower lid can be reduced. Can be given dimensions,
The lower lid can be opened and closed smoothly without bringing the storage frame and the lower lid into unnecessary contact with each other.

[0012]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a perspective view of an evacuation device having a lower lid mounting structure of the present invention in use, FIG. 2 is a perspective view of a lower lid mounting structure, and FIG. 3 is an enlarged view of a main part of the lower lid mounting structure. FIG. 4 is a perspective view, and FIG. 4 is a sectional view of the lower cover in a closed state.

The evacuation device includes a storage frame 2 attached to a hole 1a drilled in a slab 1 such as a floor or a veranda, and upper and lower pivots attached to the floor side and the ceiling side of the storage frame 2, respectively. The lower lids 3, 4 and the upper and lower lids 3, 4 are connected to each other, the lower lid 4 is opened and closed in conjunction with the opening and closing of the upper lid 3, and the upper lid 3 is fixed and maintained substantially upright when opened. A plurality of horizontal rails 6b, 6b,... Are horizontally suspended and accommodated between a pair of elastic bodies 6c, 6c in which a plurality of vertical rails 6a, 6a. Frame 2
The upper and lower lids 3 and 4 are folded and stored inside.
When the ladder 6 is opened, the ladder 6 extending to or near the lower floor and the upper and lower lids 3 and 4 are opened, and then the ladder 6 starts to descend, controlling the elongating descent speed of the ladder 6, Further, a ladder 6 is configured to be lifted and stored by a slowing machine 13.

In this case, the storage frame 2 has four side wall members 2c each having an outwardly directed upper flange 2a at an upper end and an outwardly bent L-shaped lower flange 2b at a lower end. The upper frame member 2d has a frame-like shape and has a substantially crank-shaped cross section mounted above the upper flange 2a.

A support shaft 7 protrudes from the inner side surfaces of the side wall members 2c, 2c of the storage frame 2 configured as described above, and the lower cover 4 is attached to the support shaft 7 via a mounting member 8. Is pivotally mounted so that it can be opened and closed.

In this case, as shown in FIGS. 3 and 5, the support shaft 7 is protruded from the side wall member 2c of the storage frame 2 while being fixed thereto by spot welding or the like, and projects into the storage frame 2. A step 7a constituting a positioning section is provided on the side.

The mounting member 8 is a plate-like member having a mounting hole 8a for fitting the support shaft 7 and a fixing receiving portion formed by a nut 8b for screwing a fixing bolt 9 as fixing means. A burring portion 8c, which is a positioning portion that is formed and is in contact with the step portion 7a of the support shaft 7, protrudes around the mounting hole 8a.

On the other hand, both opposing standing walls 4 of the lower lid 4
A fixing portion 4d having a hook-shaped notch hole 4b rotatably engaged with the support shaft 7 and a through hole 4c into which a fixing bolt 9 is inserted near the notch hole 4b. Is provided.

Next, the manner of mounting the lower cover 4 will be described with reference to FIG.
This will be described with reference to FIGS. 7A and 7B and FIGS. 8A and 8B.

First, the support shaft 7 is fixed to the side wall members 2c, 2c of the storage frame 2 installed on the slab 1 in advance by spot welding or the like, and FIG. 6, FIG. 7 (a) and FIG.
As shown in (a), the mounting hole 8 of the mounting member 8 is formed in the support shaft 7.
a is fitted, and the mounting member 8 is mounted.

Next, as shown in FIG. 6, after the lower lid 4 is lifted from below into the storage frame 2, the notch 4b is dropped into the support shaft 7 and engaged rotatably. At this time,
The upper lid 3 and the lower lid 4 are connected by a link mechanism 5 in advance.

Then, the fixing bolt 9 is passed through the through hole 4c from the inside of the lower lid 4 and fastened to a nut 8b which is a fixing receiving portion of the mounting member 8, thereby fixing the lower lid 4 and the mounting member 8 ( 7 (b) and 8 (b). At this time, the burring portion 8c of the mounting member 8 is
a, the axial movement of the support shaft 7 of the lower lid 4 is regulated, so that the joint interval between the storage frame 2 and the lower lid 4 is kept constant, and the opening and closing of the lower lid 4 becomes smooth. At the same time, the storage frame 2 and the lower lid 4 can be prevented from being damaged or corroded by friction.

When the lower lid 4 is fixed on both sides to the mounting members 8 fitted to the support shafts 7 on both sides as described above, the mounting operation of the lower lid 4 is completed.

Therefore, since the lower lid 4 can be rotatably mounted on the support shaft 7 without tilting, the lower lid 4 can be mounted safely and quickly without shifting the lower lid 4 during mounting. And mounting can be ensured. When the lower cover 4 is to be removed, the lower cover 4 is opened to release the fastening state between the fixing bolt 9 and the nut 8b, and then the lower cover 4 is lifted upward to remove the notch hole 4.
By releasing the engagement between b and the support shaft 7, the lower lid 4 can be easily removed. Therefore, the lower lid 4
Repair, replacement, etc. becomes easier.

The uppermost vertical rails 6a, 6a of the ladder 6 are preliminarily pivotally attached to the brackets 10, 10, respectively.
Mounted inside. At this time, both brackets 10, 1
A lifting machine 13 is fixedly provided between 0 and is attached to the storage frame 2 at the same time as the ladder 6. Further, a wire 11 wound around a drum (not shown) built in the lifting machine 13 so as to be able to be wound up.
The lower end of the ladder 6 is connected to a crank-shaped horizontal rod 12 laid between the vertical bars 6a, 6a on the lower end side of the ladder 6 so that the ladder 6 can be wound up.

In the above embodiment, the fixing bolt 9 is attached to the lower lid 4.
Through the through hole 4c, and is fastened to the nut 8b, which is a fixing receiving portion of the mounting member 8, but it is not always necessary to have such a structure, and instead of the nut 8b, a tap is formed in the hole of the mounting member 8. The nut can be omitted by providing, or when the thickness of the mounting plate 8 is thin, burring the hole and providing a tap. Conversely, a fixing bolt 9 passing through a through hole provided in the mounting member 8 may be fastened to a fixing portion provided in the lower lid 4.

In the above embodiment, the step 7a of the support shaft 7 is used.
Although the positioning portion is formed by the burring portion 8c of the mounting member 8, it is not always necessary to have such a structure, and at least one of the step portion 7a and the burring portion 8c may be provided. In addition, for example, a positioning pin or the like may be protruded from the support shaft 7 other than the stepped portion 7a, or a projection or the like may be provided other than the burring portion 8c to form the positioning portion.

[0029]

As described above, according to the mounting structure of the lower lid of the present invention, since it is configured as described above, the following effects can be obtained.

According to the first aspect of the present invention, after the mounting member is fitted to the support shaft projecting from the storage frame, the notch hole of the lower lid is engaged with the support shaft. Since the fixing portion of the lower lid and the fixing receiving portion of the mounting member can be fixed by the fixing means, the lower lid can be prevented from being displaced at the time of mounting in a stable state, and can be safely and easily mounted on the storage frame. In addition, the lower lid can be securely attached.

(2) According to the lower lid mounting structure of the second aspect, the axial movement of the mounting shaft of the mounting member can be regulated by the positioning portion formed on at least one of the supporting shaft and the mounting member. The joint distance between the frame and the lower lid can be set to a predetermined size, and the lower lid can be opened and closed smoothly, and the storage frame and the lower lid can be prevented from being damaged or corroded by wear. Can be.

[Brief description of the drawings]

FIG. 1 is a perspective view of a use state of an evacuation device having a lower lid mounting structure according to the present invention.

FIG. 2 is a perspective view showing a mounting structure of a lower lid.

FIG. 3 is an enlarged perspective view showing a main part of a lower lid mounting structure.

FIG. 4 is a sectional view showing a closed state of a lower lid.

FIG. 5 is an exploded perspective view showing a support shaft, a mounting member, and a lower lid according to the present invention.

FIG. 6 is an exploded perspective view showing a state before the lower lid is attached.

FIG. 7 is a side sectional view showing a procedure for attaching the lower lid.

FIG. 8 is an enlarged sectional view showing a procedure for attaching the lower lid.

FIG. 9 is an explanatory view showing a mounting state of a conventional lower lid.

[Explanation of symbols]

 2 Storage frame 4 Lower lid 4b Notch hole 4c Through hole 4d Fixing part 6 Ladder 7 Support shaft 7a Step (positioning part) 8 Mounting member 8a Mounting hole 8b Nut (fixing receiving part) 8c Burring part (positioning part) 9 Fixing bolt (Fixing means)

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int. Cl. ⁷ , DB name) A62B 5/00 E06C 7/14 E06C 9/14 F16C 11/00-11/04

Claims (2)

(57) [Claims] 1. A storage frame attached to a hole formed in a slab such as a floor or a veranda, an upper and lower lid pivotally connected to a floor side and a ceiling side of the storage frame, respectively, A ladder that is folded and stored in a frame and has a ladder extending to or near a floor below the floor when the upper and lower lids are opened, a support projecting into the storage frame; A fixing receiving portion of the lower lid is formed in a mounting member fitted to a shaft, and a hook-shaped notch hole rotatably engaged with the support shaft is formed in the lower lid, and the mounting member is Forming a fixing portion fixed to the fixing receiving portion, fixing the fixing portion of the lower lid and the fixing receiving portion of the mounting member with fixing means, and forming the notch hole on the support shaft via a mounting member. The lower part of the evacuation device characterized by being loosely fitted Mounting structure of lid. 2. A mounting structure for a lower lid in an evacuation device according to claim 1, wherein a positioning portion for regulating an axial position of the mounting member is formed on at least one of the support shaft and the mounting member. .