JPH04124000U - ceiling storage ladder - Google Patents

Abstract

(57) [Summary] [Purpose] To easily set and store a ladder that is set between the ceiling and the floor when in use and stored in the ceiling when not in use. [Structure] The ladder 1 is divided into first, second, and third ladder units 2, 3, and 4 that are slidably supported by each other so that the ladder 1 can be transformed into an overlapping stowed position and a protruding extended position. The upper end of the first ladder unit is swingably supported on the ceiling, and the winding belt 20 wound around the winding mechanism is connected to the second ladder unit via a pulley provided on the first ladder unit. An actuating belt 26 connected to the upper end and movably suspended around the second ladder unit is connected to the lower end of the first ladder unit and the upper end of the third ladder unit, respectively. In conjunction with the winding, each ladder unit is reduced to its storage position and is configured to be stored horizontally in the ceiling.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

This invention is designed to provide an intervening device between the floor and ceiling of a room for access to a ceiling room, etc. This relates to a ceiling storage ladder.

0002

[Prior art and problems to be solved by the invention]

Generally, a room for storage etc. is sometimes provided in the ceiling of a house, etc. In some cases, a ladder is required to access the ceiling room. By the way, this ladder It can be set up quickly when in use, and does not get in the way when not in use. is desirable, so that the ladder can be slid or folded when not in use. It is stored in the ceiling and can be lowered from the indoor side when in use. There is a so-called ceiling storage ladder. However, this device has traditionally been used to store and lower ladders. When lifting or lowering a ladder, do not touch the bottom edge of the ladder each time to lift or lower it. Because it was a difficult task, it required a lot of effort and strength, and in addition, it was necessary to use a ladder at this time. There was also the risk of hitting one's head on something, which was a problem.

0003

[Means to solve the problem]

In view of the above-mentioned circumstances, the present invention is a ceiling storage system that can eliminate these drawbacks. It was invented for the purpose of providing a storage ladder, and the connection between the ceiling and the floor is A first ladder unit, the upper end of which is swingably supported by the ceiling, a second ladder unit slidably supported by the first ladder unit; The third ladder unit, which is slidably supported by the second ladder unit, has at least a The ladder units are divided into two positions: a stowed position in which they overlap and an extended position in which they protrude. In addition to being configured so that it can transform into The winding belt is passed through the pulley provided on the first ladder unit to the second ladder unit. The operating belt is connected to the upper end of the ladder unit and is movably suspended around the second ladder unit. are connected to the lower end of the first ladder unit and the upper end of the third ladder unit, respectively. Each ladder unit is stored in conjunction with the winding belt being wound by the winding mechanism. It is characterized by being configured so that it can be reduced in size and stored horizontally in the ceiling. It is something.

0004 With this configuration, the present invention allows the ceiling storage ladder to be easily set up and stored. It is designed so that you can do things like

[0005]

【Example】

Next, one embodiment of the present invention will be described based on the drawings. In the drawing, 1 is a house Interposed between ceiling A and floor B for access to the ceiling room provided in The ladder 1 is divided into first, second and third ladder units 2, 3 and 4. It is constructed by supporting each ladder unit 2, 3, and 4 in a slidable manner. There is. In other words, an entrance/exit C is opened in the ceiling part A, and on one side of the entrance/exit C. The opening/closing lid 5 for opening and closing the entrance/exit C is swingable downward by a hinge 6. However, the opening/closing lid 5 is attached to the front side (the side of the ceiling room) of this opening/closing lid 5. When opening the entrance/exit C by swinging downward, the first ladder should be turned upward and downward. The child unit 2 is integrally fixed via a bracket 7. The first ladder uni Tsuto 2 is formed into a staircase shape by constructing a plurality of horizontal plates 2b between both left and right vertical frames 2a. However, a guide rail groove 8 is provided on the surface of both vertical frames 2a over almost the entire length. are formed respectively. The lower end of this guide rail groove 8 has a U-shape. The first guide bracket 9 has a shape in which the upper and lower fitting parts 9a and 9b are connected back to back. The lower fitting part 9b of the guide bracket is fitted with screws fixed. Two pairs of rollers 9 are provided in the upper fitting portion 9a of the guide rail groove 8 of the guide rail groove 8. c is rotatably supported.

[0006] On the other hand, the second ladder unit 3 has approximately the same shape as the first ladder unit 2. It is formed in a step-like shape by both left and right vertical frames 3a and a plurality of horizontal plates 3b. However, the vertical frame 3a of the second ladder unit 3 has guides on the front and back sides, respectively. Rail grooves 10 and 11 are formed. Then, in the guide rail groove 11 on the back side The roller 9c on the side of the first ladder unit 2 is fitted so as to be vertically movable. Further, at the upper end of the guide rail groove 11, there is provided a groove having the same shape as the first guide bracket 9. With the upper fitting part 12a of the second back side guide bracket 12 fixed with screws, Although the guide bracket 12 is fitted, there is a roller 12c on the lower fitting part 12b of the guide bracket 12. The roller 12c is rotatably supported on a shaft, and the roller 12c is a guide for the first ladder unit 2. It fits into the rail groove 8 so as to be vertically movable. On the other hand, the guide rail groove 1 on the surface side The lower fitting part 13b of the second front side guide bracket 13 is fixed with a screw at the lower end of the second front side guide bracket 13. The upper fitting portion 13a of the guide bracket 13 has a A roller 13c is rotatably supported.

[0007] Further, the third ladder unit 4 is also connected to the first ladder unit 2 and the second ladder unit 3. The left and right vertical frames 4a of the third ladder unit 4 have approximately the same shape. A guide rail groove 14 is formed on the back surface. And this guide rail groove 14 The roller 13c on the side of the second ladder unit 3 is fitted in the roller 13c so as to be movable up and down. At the same time, a third guide bracket 15 is fitted onto the upper end of the guide rail groove 14. The mating portion 15a is fitted with screws fixed, and the guide bracket 1 The lower fitting portion 15b of the second ladder unit 3 has a guide rail groove 1 on the surface side of the second ladder unit 3. A roller 15c that fits into the roller 0 so as to be vertically movable is rotatably supported.

[0008] Each roller 9c, 12c, 13c, 15c is connected to the guide rail groove 1, respectively. By moving up and down within 1, 8, 14 and 10, the second ladder unit 3 The third ladder unit 4 is connected to the second ladder unit 3. It can be slid up and down. And the second and third ladder units 3, 4, the rollers 12c and 15c are in contact with the upper ends of the guide rail grooves 8 and 10, respectively. The second and third ladder units 3 and 4 are moved up until they are regulated. is in a storage position overlapping the first ladder unit 2, and the second and third ladder units are The rollers 12c and 15c move the units 3 and 4 under the first guide bracket 9, respectively. The fitting part 9b comes into contact with the lower fitting part 13b of the second front guide bracket 13 and is regulated. By moving the second and third ladder units 3 and 4 down until they are It is configured to be in an extended position protruding downward from the unit 2.

[0009] Further, 16 is a four-circumferential frame provided at the peripheral edge of the entrance/exit C, and the four-circumferential frame 16 is Inside the case 17 disposed on one side (the side where the hinge 6 of the opening/closing lid 5 is attached) is a driver. A moving motor 18 is installed inside. Furthermore, inside the case 17, a drive motor 18 is connected. A dynamically connected take-up pulley 19 is rotatably supported. This take-up pulley Reference numeral 19 denotes a belt to which the winding belt 20 is wound, with the base end of the winding belt 20 being fixed. However, the tip side of the winding belt 20 is attached to the loose part installed inside the case 17. The first ladder unit passes through the detection pulley 21 and the pulley 22 attached to the four-frame frame 16. Pulleys 23 and 24 are attached to the middle and lower ends of the vertical frame 2a of the frame 2, respectively. , and is attached to the upper end of the vertical frame 2a in a state that intersects with that which passed through. The second backside guide passes through the pair of pulleys 25 and 25a, and passes through the guide rail groove 8. It is integrally connected to the lower fitting portion 12b of the side bracket 12.

0010 On the other hand, 26 is an operating belt movably suspended around the second ladder unit 3. , one end of the actuating belt 26 is connected to the lower fitting portion 15b of the third guide bracket 15. It is fixed. The other end of the actuating belt 26 passes through the guide rail groove 10. Then, the signal is passed through a pair of pulleys 27, 27a attached to the upper end of the vertical frame 3a. Furthermore, it passes through the guide rail groove 11 and connects to the upper fitting portion 9a of the first guide bracket 9. A pair of rollers 28, 2 are physically connected and are further attached to the lower end of the vertical frame 3a. 8a, passes through the guide rail groove 10 again, and connects to the third guide bracket 15. It is connected to the actuation belt tension adjustment member 29 attached to the lower fitting part 15b of .

[0011] Then, in order to store the ladder 1 in the extended position in the ceiling A, the drive motor 18 is driven. When the winding belt 20 is tightened and wound up, the tip of the winding belt 20 is connected to the second ladder unit. Since it is connected to the second back side guide bracket 12 fixed on the side of the tube 3, the winding The second ladder unit 3 rises in conjunction with the winding of the belt 20. Furthermore this second As the ladder unit 3 rises, it is movably suspended from the second ladder unit 3 and One end is connected to the first guide bracket 9 fixed to the first ladder unit 2 side. The actuating belt 26 is wound up, thereby connecting the other end of the actuating belt 26. The third ladder unit 4 fixed to the second front guide bracket 15 is connected to the second ladder unit. It rises at twice the speed of Tsuto 3. In this way, ladder 1 is connected to the second and third ladder units. 3 and 4 are reduced to a storage position where they overlap the first ladder unit 2, but this storage position By further winding up the winding belt 20 from the position, the first ladder unit 2 is The lower end is lifted, and the ladder 1, together with the opening/closing lid 5, moves upwards using the hinge 6 as a fulcrum. It is configured so that it can be swung into a horizontal position and housed in the ceiling section A.

0012 Further, 30 is an installation angle adjustment device for the ladder 1, which constitutes the adjustment device 30. One end of the stopper belt 31 is fixed to the four-periphery frame 16. On the other hand, the first A mounting bracket 32 having a substantially elongated shape is fixed to the upper end of the vertical frame 2a of the ladder unit 2. However, a movable fitting 33 is movably fitted into the mounting fitting 32, and The other end of the stopper belt 31 is connected to a pulley 3 attached to a mounting bracket 32. 4, and is fixed to a pin 33a that is integrally attached to the movable metal fitting 33. Ru. This movable fitting 33 is adjusted by screwing into the movable fitting 33 from the mounting fitting 32 side. By rotating the screw 35, it is moved within the mounting bracket 32. In this way, the stopping position of the other end of the stopper belt 31 is displaced. This makes it possible to adjust the amount of swinging of the ladder 1 when it swings downward with the hinge 6 as the fulcrum. It is composed of

[0013] In the embodiment of the invention constructed as described above, the ladder 1 has the following features: Divided into first, second and third ladder units 2, 3 and 4 which are slidably supported by each other. In order to store the ladder 1 in the split and extended position in the ceiling A, the drive motor 1 is 8 to wind up the winding belt 20, the winding belt 20 is connected to the winding belt 20. The second ladder unit 3 moves up and is further activated as the second ladder unit 3 moves up. As the belt 26 is wound up, the third ladder unit 4 also moves up, and the first ladder unit The storage position is such that they are superimposed on each other. From this storage position, the winding bell is further removed. By winding up the lid 20, the ladder 1 swings upward together with the opening/closing lid 5, and the opening/closing lid 5 swings upward. 5 closes the doorway C, and the ladder 1 becomes horizontal and is housed in the ceiling A. It will be paid. On the other hand, when lowering the ladder 1 stored in the ceiling A, By reversing the moving motor 18 and letting out the winding belt 20, the ladder 1 is is swung downward together with the opening/closing lid 5 until it is regulated by the stopper belt 31. Entrance C is opened, and then the second and third ladder units 3 and 4 respectively move down and extend. position, and the ladder 1 is set between the ceiling A and the floor B. Become.

[0014] In this way, in the present invention, by driving the drive motor 18, Ladder 1 can be stored in ceiling A or set between ceiling A and floor B. As a result, it is no longer necessary to lift and lower the ladder by hand as in the past. This means that anyone can operate it easily and safely.

[0015] Moreover, in this one, an operating bell for moving the third ladder unit 4 is provided. The top 26 is transferred to the second ladder unit 3 via pulleys 27, 27a, 28, 28a. In the state of being freely suspended, the first guide bracket 9 on the first ladder unit 2 side Since it is connected to the third guide bracket 15 on the third ladder unit 4 side, it is difficult to operate. The movement belt 26 can be prevented from loosening, and the third ladder unit 4 can be moved up and down. can be carried out reliably and smoothly.

[0016] Furthermore, in this device, the position of the movable metal fitting 33 can be moved by rotating the adjustment screw 35. Then, by displacing the fixing position of the stopper belt 31 to the ladder 1, The amount of downward swinging of the ladder 1 about the hinge 6 can be adjusted. Therefore, Adjust the installation angle of ladder 1 to correspond to the distance between ceiling A and floor B at the installation site. This allows for easy adjustment, which greatly improves the workability of installation work. be able to.

[0017] Incidentally, this embodiment is of course not limited to the above embodiment, and the ladder 1 is made up of four ladders. It is also possible to divide the ladder unit into four or more ladder units. Each of the bolts is moved up and down using the same actuating belt as in the previous embodiment. That's fine.

[0018]

[effect]

In summary, since the present invention is constructed as described above, the ladders are divided into at least a first, second and third ladder unit slidably supported on the When the winding belt is wound up to store the ladder in the extended position on the ceiling, , the second ladder unit connected to the winding belt moves upward, and further the second ladder unit As the unit moves upward, the operating belt is wound up and the third ladder unit also moves upward. , the second and third ladder units are in a storage position overlapping the first ladder unit. , by further winding up the winding belt from this storage position, it swings to the ceiling. The first ladder unit, which is freely supported, swings upward, and the ladder touches the ceiling. It will be stored horizontally. Meanwhile, the ladder stored in the ceiling was being rolled down to be lowered. When the take-up belt is let out, the first ladder unit swings downward, and then the second and third ladder units swing downward. The ladder units each move downward to an extended position, and the ladders are connected to the ceiling and floor. It will be set between. This makes stowing and lowering the ladder difficult. When using a ladder, it is no longer necessary to lift and lower the ladder by hand as in the past. This means that anyone can operate it easily and safely.

[0019] Furthermore, in this case, the first ladder unit is moved in order to move the third ladder unit. The actuating belt connected to the ladder unit and the third ladder unit moves to the second ladder unit. Because it is freely suspended, the operation belt can be prevented from loosening, and the third The ladder unit can be moved up and down reliably and smoothly.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a ladder in an extended position.

FIG. 2 is a front view of the same as above.

FIG. 3 is a side view of the same as above.

FIG. 4 is a side view of the ladder shown in a state stored in the ceiling.

FIG. 5 is a cross-sectional side view of the same as above.

FIG. 6 is a cross-sectional plan view of the same as above.

FIG. 7 is an enlarged sectional front view of the same as above.

FIG. 8 is an explanatory diagram showing a ladder storage mechanism.

FIG. 9 is a perspective view showing the installation angle adjustment device.

[Explanation of symbols]

1 ladder 2 First ladder unit 3 Second ladder unit 4 Third ladder unit 20 Winding belt 26 Actuation belt

Claims (1)

[Scope of utility model registration request] 1. A first ladder unit whose upper end is swingably supported by the ceiling, and a ladder interposed between a ceiling and a floor surface, and a first ladder unit which is slidably supported by the first ladder unit. and a third ladder unit slidably supported by the second ladder unit, and each of these ladder units is changed into a stowed position in which they overlap and an extended position in which they protrude. A winding belt wound around a winding mechanism disposed on the ceiling is connected to the upper end of the second ladder unit via a pulley provided on the first ladder unit. , an operating belt movably suspended around the second ladder unit is connected to the lower end of the first ladder unit and the upper end of the third ladder unit, respectively, and is linked to the winding of the winding belt by the winding mechanism. A ceiling storage ladder characterized in that each ladder unit is reduced to a storage position and stored horizontally in the ceiling.