JP2585915Y2 - Ceiling storage ladder - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a storage room provided in a space above a ceiling or a ceiling storage ladder used when entering and exiting a room.

[0002]

2. Description of the Related Art In recent years, storage rooms and rooms have been formed in the space above the ceiling in order to make effective use of the space above the ceiling. Ceiling storage is performed using a ladder. In this apparatus, a ladder unit 3 stored in a state in which a lid plate 2 installed on a ceiling portion is opened and folded on the upper surface side of the lid plate 2 is stretched to place a ladder unit 3 between the ceiling portion and the floor portion. The ladder unit 3 is used to access a storage room or a room. And in these things, the height position of a ceiling part or a floor part may differ according to the attachment position to which the ladder unit 3 is attached, that is, between the ceiling part and the floor part for installing the ladder unit 3. May have different height dimensions. In this case, the inclination of the ladder unit 3 in the installed state is adjusted so that the ladder unit 3 fits between the ceiling and the floor so that the ladder unit 3 can be erected. As shown in FIG. 13 , the tilting state of the unit 3 is adjusted by a turnbuckle 40 in the middle of the support link 4 installed between the cover plate 2 and the opening frame 1.
a cover plate 2 which is held at a predetermined opening angle by the support link 4 by changing the length of the support link 4 by the length adjustment member 40.
The ladder unit 3 is arranged between the ceiling and the floor so that the lower end of the ladder unit 3 is brought into contact with the floor without any gap.

[0003]

[Problems to be Solved by the Invention] By the way, when the user enters and exits the storage room or room in the space above the ceiling using the ladder unit 3, the user uses the support link 4 arranged in the middle of the ladder unit 3. It may be held by hand, and if the support link 4 is held by hand every time when entering and exiting the space above the ceiling, the hand may touch the turnbuckle 40a and rotate the turnbuckle 40a. However, there has been a problem that the length of the support link 4 due to the turnbuckle 40a changes and the ladder unit 3 rattles.

An object of the present invention is to solve the above-mentioned problem, and the opening angle of the cover plate by the support link may be inadvertently changed by an external force such as when the user holds the support link by hand. It is intended to provide a ceiling storage ladder without such a thing.

[0005]

According to the present invention, in order to achieve the above object, an opening frame 1 is installed on the ceiling so as to communicate with a space above the ceiling, and one end of the opening frame 1 is connected to one end of a cover plate 2. The cover plate 2 is attached to the opening frame 1 so that it can be freely opened and closed, and a ladder unit 3 is arranged on the upper surface side of the cover plate 2, and is folded between the side surface of the opening frame 1 and the upper surface of the cover plate 2. A free support link 4 is installed and supported on the upper side of the lid plate on the side of the ladder unit.
Fix the point slide lower bracket, and support the fulcrum slide lower bracket.
Attach the point slide upper bracket so that the slide position can be adjusted
The lower end of the support link is pivotally connected to the point slide upper bracket
It was done.

[0006]

[0007]

[0008]

[Function] However, the lid is provided on the side of the ladder unit 3.
A fulcrum slide lower bracket 12 is fixed to the upper surface side of the plate 2 and
Slide the fulcrum slide upper bracket 14 to the point slide lower bracket 12
Attached so that the guide position can be adjusted, and attached to the fulcrum slide upper bracket 12.
The ladder unit 3 is connected to the lower end of the support link 4 in a rotatable manner to adjust the opening angle of the cover plate 2 by the support link 4 so that the height between the ceiling and the floor is different. The ladder unit 3 can be installed in such a manner that the lower end of the ladder unit abuts on the floor without any gap. Then, the fulcrum slide lower bracket 12, the fulcrum slide
Position adjusting member 5 composed of upper metal fitting 14 and the like is a ladder.
It is arranged on the upper surface side of the lid plate 2 on the side of the unit 3.
Therefore, the ladder unit 3 is installed in a place where it is hard to touch the hand of the user who moves up and down , and the position adjusting member 5 is moved by the external force caused by the user touching the support link 4 by hand, and the lid plate is moved. There is no possibility that the opening angle of 2 changes carelessly.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail based on illustrated embodiments. An opening is provided in the ceiling so as to communicate with the space behind the ceiling, and a rectangular opening frame 1 is attached to this opening. As shown in FIG. 12, a lid plate 2 is attached to the opening frame 1 such that one end is pivotally attached to the opening frame 1, and a ladder unit 3 is installed on the upper surface side of the lid plate 2. A foldable support link 4 is provided between the inner surface of the opening frame 1 and the cover plate 2 so that the cover plate 2 opened by the support link 4 is suspended and held at a predetermined opening angle. It has become. Here, the cover plate 2 may be opened and closed by an auxiliary member (not shown) such as a gas spring or a spring.

A cover plate 2 whose one end is pivotally attached to the opening frame 1 is attached by connecting and fixing one end of the lid plate 2 to the opening frame 1 with a pivot fitting 6. The pivot fitting 6 is used as a fulcrum. It can be opened and closed. The ladder unit 3 installed on the upper surface side of the lid plate 2 is connected to a fixed ladder 3a attached to the upper surface of the lid plate 2 and to the end of the fixed ladder 3a by a connecting link 7 so as to be foldable in only one direction. It comprises a movable ladder 3b and a movable ladder 3c which is connected to an end of the movable ladder 3b by a connecting link 7 so as to be foldable in only one direction. Reference numeral 8 denotes a handrail attached to one side of the fixed ladder 3a.

As shown in FIGS. 5 and 6, an upper support link 4a having an upper end pivotally mounted on the opening frame 1 and a lower end having a lower end provided between the opening frame 1 and the cover plate 2 are provided. The upper support link 4a and the lower support link 4b are pivotally mounted at one end and are foldable. An elongated hole 9 is provided along the longitudinal direction at the upper end of the lower support link 4b axially attached to the lower end of the upper support link 4a, and the upper support link 4a, the lower support link 4b and Are rotatably connected by connecting pins 10. FIG. 7 shows the inner surface of the opening frame 1.
Is mounted, and the upper end of the upper support link 4a is rotatably connected to the mounting seat 11.

A position adjusting member 5 is attached to the upper surface of the cover plate 2, and the lower end of the lower support link 4b is
Is connected and fixed. The position adjusting member 5 includes a fulcrum slide lower bracket 12 shown in FIG. 8 and a spring 13 shown in FIG.
1 and a fulcrum slide upper fitting 14 shown in FIG.
The pin 15 shown in FIG. The fulcrum slide lower bracket 12 is connected to the connecting piece 12b along the longitudinal direction of the band plate material 12a from both edges along the longitudinal direction of the band plate material 12a.
The main body is formed by projecting fixing pieces 12c upward from both ends along the short direction of the strip 12a, and a slit is formed along the longitudinal direction at the center of the strip 12a. 12d is provided. A fulcrum slide upper bracket 1 that is slidably attached to a fulcrum slide lower bracket 12.
4 are connecting pieces 14 extending upward from the center of the supporting piece 14a.
b is protruded to form a main body, and a through hole 14c for inserting the pin 15 shown in FIG.
Are drilled. The fulcrum slide upper metal fitting 14 is attached to the fulcrum slide lower metal fitting 12 so that the support piece 14a is disposed on the lower surface side of the strip 12a of the fulcrum slide lower metal fitting 12 and the connecting piece 14b is inserted into the slit 12d so as to be slidably movable. Have been. Fulcrum slide lower bracket 12
A bolt 16 is inserted into the fixed piece 12c which is provided upright, and the bolt 16 is held at an arbitrary position by clamping the fixed plate 12c with two nuts 17 screwed to the bolt 16. It can be fixed with. Bolt 1
The head of No. 6 comes into contact with the connecting piece 14b of the fulcrum slide upper metal fitting 14, so that the position of the fulcrum slide upper metal fitting 14 with respect to the fulcrum slide lower metal fitting 12 can be freely set. ing. Reference numeral 18 denotes a fixing screw, and the sliding movement of the fulcrum slide upper bracket 14 is restricted by tightening the fixing screw 18.

The lower support link 4b, which is pivotally mounted on the connecting piece 14b of the fulcrum slide upper fitting 14, is a spring 13 shown in FIG.
Are rotatably connected by pins 15 via
The spring 13 urges the lower support link 4b in the direction of arrow A in FIG. 1, and when the cover plate 2 is closed, the support link 4 is folded in an outwardly folded state as shown in FIG. ing. Here, since the upper support link 4a and the lower support link 4b are connected via the elongated hole 9 provided on the upper part of the lower support link 4b, when the cover plate 2 is lifted, the length of the elongated hole 9 is first measured. The lower support link 4b is lifted upward by an amount, so that the load on the cover plate 2 acting on the support link 4 is eliminated, and the support link 4 is folded in an outwardly folded state. In other words, if the long hole 9 is not provided, a force to bend inward or outward acts on the support link 4 simultaneously with lifting of the lid plate 2, and the support link 4 may be folded inward. However, if the long hole 9 is provided, at the initial stage of lifting the cover plate 2, the lower support link 4 b first moves upward within the range of the long hole 9, and the load of the cover plate 2 does not act on the support link 4. In this state, the support link 4 can be guided to be bent outward by the spring 13 so that the direction in which the support link 4 is folded can be reliably set to the outside.

When the ladder unit 3 is used, the user unlocks the cover plate 2 using an operating rod or the like, opens the cover plate 2 and tilts the cover plate 2 with the support link 4. In this state, the ladder unit 3 is stretched between the ceiling and the floor by stretching the ladders 3a, 3b, 3c in this state, and the ladder unit 3 is stretched between the ceiling and the floor. Is used to enter and exit the storage room or room behind the ceiling. When the ladder unit 3 is not used, the movable ladders 3b and 3c are folded and the ladder unit 3 is stored in a folded state on the upper surface side of the lid plate 2, and the lid plate 2 is closed and the ladder unit is placed in the opening frame 1. To store.

Depending on the place where the ladder unit 3 is mounted, the height between the ceiling part and the floor part may be different. In this case, the fulcrum slide upper bracket 12 with respect to the fulcrum slide lower bracket 12. By changing the fixed position of 14 and changing the connecting position of the lower support link 4b to the cover plate 2 via the position adjusting member 5, the opening angle of the cover plate 2 is adjusted, and the ladder unit 3 is easily fitted to the ceiling. It is installed between the floor and the floor. In other words, in the case where the distance between the ceiling and the floor is long and the ladder unit 3 is stretched and a gap is formed between the lower end of the movable ladder 3c located at the lowermost position and the floor, FIG. As shown in (1), the lowermost movable ladder constituting the ladder unit 3 is formed by increasing the opening angle α of the lid plate 2 by positioning the fulcrum slide upper bracket 14 upward by making the bolt 16 largely project outward. The lower end of 3c is in contact with the floor without any gap. Further, when the distance between the ceiling and the floor is short and the lower end of the lowermost movable ladder 3c constituting the ladder unit 3 abuts on the floor, the connecting portion of each ladder is bent. As shown in FIG.
6 so as to protrude largely toward the inside, the fulcrum slide upper fitting 14 is positioned on the upper side, and the support position of the lower end of the lower support link 4b is positioned on the front end side of the cover plate 2 so that the opening angle α of the cover plate 2 Ladders 3a, 3b,
The lowermost movable ladder 3c is brought into contact with the floor surface in a state where the connecting portion of 3c is straightened without bending. Here, in the thing shown in FIG. 1, the thing which adjusted the position adjustment member 5 so that the angle (beta) of a floor surface and the cover plate 2 is set to 52 degrees is shown, and is shown in FIG. The angle β between the floor surface and the cover plate 2 is 56
The position adjustment member 5 is adjusted so that the angle of the position adjustment member 5 is set to 60 °. In the example shown in FIG. 3, the position adjustment member 5 is adjusted so that the angle β between the floor surface and the cover plate 2 becomes 60 °. Is adjusted.

The opening angle of the cover plate 2 supported by the support link 4 is adjusted in such a manner, so that even if the height dimension between the ceiling portion and the floor portion is different, the height difference between the ceiling portion and the floor portion can be improved. The ladder unit 3 can be installed between the floor and the ladder unit 3 so that the position adjusting member 5 is attached to the cover plate 2. It is possible to make it difficult for a user who enters or exits the room to touch the position adjustment member 5, and even if the user holds the support link 4 by hand, the fixing position of the lower support link 4 b by the position adjustment member 5 changes. Therefore, the opening angle of the cover plate 2 by the position adjusting member 5 does not change carelessly.

[0017]

[0018]

In the embodiment shown, the ladder unit 3 comprises one fixed ladder 3a and two movable units 3
b and 3c show a structure composed of three ladders, but the invention is not limited to this.
It may be constituted by one or more or three or less ladders.

[0020]

[Effects of the Invention] As described above, the present invention installs an opening frame on the ceiling so as to communicate with the space above the ceiling, and attaches one end of a lid plate to one end of the opening frame to open and close the opening frame. A lid plate is attached, a ladder unit is arranged on the upper surface side of the lid plate, a foldable support link is erected between the side surface of the opening frame and the upper surface of the lid plate, and the lid plate is placed on the side of the ladder unit . On the top side
Fix the fulcrum slide lower bracket and attach it to the fulcrum slide lower bracket.
Attach the fulcrum slide upper bracket so that the slide position can be adjusted,
The lower end of the support link is rotatably connected to the fulcrum slide upper bracket.
As it is connected, the fulcrum slide lower bracket and the fulcrum slide upper bracket
The position adjustment member consisting of the ladder unit side
Is located on the top side of the lid plate
When descending, grab the ladder unit in your hand and ladder unit
When the user moves up and down, the user who moves up and down
It is possible to provide a ceiling storage ladder that is hard to touch and does not easily change the opening angle of the lid plate by the support link.

[Brief description of the drawings]

FIG. 1 is a partial side view showing an embodiment of the present invention.

FIG. 2 is a partial side view showing an operation state of the position adjusting member.

FIG. 3 is a partial side view showing an operation state of the position adjusting member.

FIG. 4 is a view showing a position adjusting member according to the first embodiment;
Is a plan view, and (b) is a sectional view.

5A and 5B show a support link, wherein FIG. 5A is a front view of an upper support link, and FIG. 5B is a front view of a lower support link.

FIGS. 6A and 6B show a connection state between a support link and a position adjusting member, wherein FIG. 6A is a plan view and FIG. 6B is a front view.

FIG. 7 is a plan view showing a mounting seat.

FIGS. 8A and 8B show a fulcrum slide lower bracket constituting the position adjusting member, wherein FIG. 8A is a plan view, FIG.
(C) is a side view.

FIGS. 9A and 9B show a spring constituting the position adjusting member, wherein FIG. 9A is a plan view and FIG. 9B is a front view.

10A and 10B show a fulcrum slide upper bracket constituting the position adjusting member, wherein FIG. 10A is a plan view and FIG. 10B is a front view.

FIG. 11 is a plan view showing pins constituting a position adjusting member.

FIG. 12 is a perspective view showing the entire configuration of a ceiling storage ladder.

FIG. 13 is a perspective view showing the entire configuration of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Opening frame 2 Cover plate 3 Ladder unit 4 Support link 4a Upper support link 4b Lower support link 5 Position adjustment member

Claims (1)

(57) [Scope of request for utility model registration] 1. An opening frame is installed on a ceiling so as to communicate with a space above the ceiling, one end of a lid plate is pivotally mounted on one end of the opening frame, and a lid plate is attached to the opening frame so as to be freely opened and closed. A ladder unit is arranged on the upper surface side of the plate, a foldable support link is installed between the side surface of the opening frame and the upper surface of the lid plate, and the ladder unit is
The fulcrum slide lower bracket is fixed to the upper side of the lid plate on the side
And slide the fulcrum slide upper bracket to the fulcrum slide lower bracket.
Attached so that the guide position can be adjusted freely, and supported by a fulcrum slide upper bracket
A ceiling storage ladder that connects the lower ends of links in a freely rotatable manner .