JP2003245368A - Evacuating-escaping apparatus - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a thin style evacuating-escaping apparatus wherein a female screw thread is constituted of small diameter bearings on the internal surface of a thin steel pipe so that an arbitrary plurality of escaping-descending mechanisms can be easily installed, and a short cylinder having a male screw thread which is engaged with the large pitch of the female screw thread on the outer periphery is lowered in the steel pipe, and the escaping at the time of disaster is performed by a riding basket which is suspended from the short cylinder. <P>SOLUTION: Bearing rows are vertically provided by the female screw thread pitch at three or four split locations on the internal surface of the thin steel pipe. Then, the male thread-form short cylinder which can descend while engaging with the bearing rows is provided. When the short cylinder is lowered by its own weight, the run-out is prevented from occurring by a detect cut piece, and, this thin style evacuating-escaping apparatus is constituted in such a manner that the riding basket is attached to a frame which protrudes from a slit on the thin steel pipe. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

[Industrial field of use] It is often reported that there are currently no escape means for buildings on the second floor and above due to a fire accident or other reasons, and there is no way to escape from the window. In order to solve this problem, this plan was to develop a rain-and-string-shaped thin mechanism to enable installation of any number of stationary escape mechanisms, and it is said that it is sufficient if there is only one evacuation staircase. It compensates for legal deficiencies.

[0002]

[Prior Art] Usually, a rope, a ladder, a chute,
I am using a gondola or helicopter, etc. but in an emergency it can not be installed in time and it can not be used with normal people because it is anxious if it does not approach danger, on the contrary it can not be installed because there is a risk of allowing bandits to enter. . In addition, the evacuation stairs are concentrated in one place and their use is limited. This plan is the development of a narrow type that can be installed everywhere and is capable of continuous descent at an appropriate speed.

[0003]

A method of rotating a bolt with a motor to raise and lower the nut by using a screw of a normal bolt and nut is conceivable, but it causes a large friction loss and thus requires a strong power and cannot be realized. A ball screw cannot be made long, and maintenance of lubricating oil, etc. is impossible, and the cost is too high to be put to practical use. Therefore, instead of bolts, the thread pitch of the nut is increased to increase the nut height, and if the pitch on the bolt side is also increased, a female thread can be formed with a small diameter bearing that can fit within the thread pitch, only the descending function. Since it is sufficient to satisfy the above condition, it is possible to take a large screw lead angle and drop it by its own weight. Moreover, if it is acceptable to wear a little because it is infrequently used, a soft one can be used on the descending side, a steel one such as stainless steel can be used on the stationary side, and a screw lead angle suitable for its own weight can also be adopted. I can. The present invention verifies both sides. That is, in the former, the bolt side is made into a short cylinder with at least one turn of male thread on the outer circumference, and it is lowered while screwing inside the long steel pipe with a small diameter bearing row on the inner circumference. In order to prevent runout of the rotation of the short cylindrical male screw, a frame for bearing the rotating shaft is provided, and a detent piece is provided on the frame, and the outer ring side surface of the female thread bearing in the radial direction is used again to make XY directions. I am trying to hold it from. Therefore, the bearing of female thread arrangement can be installed vertically with a screw pitch so that it can be used as it descends, and in order to save the row, it is also possible to use it in three divided positions on the circumference, in which case do not use the same bearing from the left and right. It is necessary to make a close sliding contact as much as possible, but if the stay of the frame is projected to the outside from the slit gap provided in the entire length of the long steel pipe and a loading / unloading basket or hook is attached to the tip, it becomes extremely long. The steel pipe can be made thin and the original purpose can be achieved. To be more precise, the upper surface of the bearing outer ring of the bearing row near the slit contacts the male thread rail, and the lower surface of the bearing row in the back contacts the male thread rail. That is, since it leans toward the load side, unlike the normal elevator function, the gap between the rail pitch and the outer diameter of the bearing outer ring becomes extremely severe. In addition, in this structure, if a plurality of pieces are successively inserted from the upper end surface, continuous escape is possible. As for the bearing, this project uses a sealed bearing that does not require refueling, so maintenance is not required. Therefore, except during a disaster, the slit gap and the uppermost part can be covered with a film that can be easily cut automatically to prevent rainwater. There is also a method of reversing the form of this male screw and female screw to wind the descending side into a short steel pipe and the bolt side with a wire rod around the steel bar to form a long screw.
When a long male screw is erected vertically, the short steel pipe rotates around its outer circumference, so it is inconvenient that the stay cannot be supported only by the uppermost end and the lowermost end, and the rotation center runout of the short steel pipe is prevented by the long male screw. There is no choice but to use the outer circumference as a reference, and some friction loss cannot be avoided. It is also possible to use a method in which a short cylindrical male screw thread is used as a bearing to rotate within a long female thread pitch. However, if the female thread rope is made long, it is difficult to machine the screw rail on the inner surface of the steel pipe and the slit gap is increased. There is also a flaw that the rail screw part is cut off slightly even if it is opened and the bearing does not roll smoothly, and the run-out of rotation of the short cylindrical male screw becomes complicated by controlling from the proper direction with reference to the outer circumference of the female screw steel pipe. Further, in the method of lengthening the male thread of the bearing row, there is the inconvenience of erection as described above, and it is almost impossible to prevent the runout of the female threaded short steel pipe. Therefore, regarding the intervention of the small diameter bearing in the screw pitch, it is considered that the method described in the below-mentioned embodiment should be prioritized. If some friction loss is allowed, one side can be polished and the other side can be covered with nylon resin molding, etc., but in order to increase strength it is necessary to increase the screw diameter or lengthen the screw length, so it is unavoidable to use too long ones. There is no inconvenience.

[0004]

[Function] Escape from the top It is safe to install one unit on each floor to prevent accidents near the aircraft, and it is ideal to plan to install an appropriate number of windows such as each window position. Therefore, as thin as possible It should be placed in the same thickness as rain and stored in advance in each room on each floor so that it can be inserted one after another, and the upper end should be in the line-of-sight position to facilitate loading. In addition, each governor is equipped with a governor to prevent over-rotation, and when necessary, the brake lever is grasped by will so that the braking function can be easily controlled by controlling the rotation shaft of the short cylindrical male screw from the frame side. . The boarding / alighting cage can be made of iron or cloth and is attached to the internal machine. The large-diameter screw has a large screw inclination angle and can fall naturally, so no power is required and it is especially convenient in the event of a disaster. If the space on the first floor cannot be secured, it can be installed on most buildings if it is stopped on the second floor and the extended steel pipe is dropped by kicking the lever with the foot.

[0005]

[Example] A stainless steel pipe 1 having a diameter of about 70 mm is built vertically, and a shield bearing row is loaded inside the steel pipe on a vertical line at a position ABC where the inner diameter is divided into 3 parts. 60
Make a 8mm bolt hole in the center of the bearing so that it is the center of the bearing inner diameter, and attach the inner ring of the bearing by tightening the nut. B
Is at a position deviating from the A position by a central angle of 120 degrees, so 3
One-third of 0 mm, that is, 10 mm downward, 70 m from the end surface
m, and at the next C position, 80mm downward, and then return to the position of row A, 90mm, and if it continues in this manner, the pitch is 30m.
The bearing is loaded in the shape of a large-diameter female thread of m. Now, a short cylinder 2 having an outer periphery formed in the shape of a male screw having the same pitch of 30 mm is mounted therein by rotating and screwing it in a screw threaded state, and the short cylinder is vertically moved. In order to operate this mechanism reliably, the vertical rotation axis G ・ G 'of the short cylinder
By bearing the bearing of No. 2 by the bearing bearings KK at the lower and upper positions of the upper and lower circular flat plates 3 and 4 of the frame F, the male screw short cylinder 2 is made rotatable, and the frame itself has its upper and lower circular flat plates. Stay part 3 connected to 3.4
s · 4s is projected to the outside from the slit gap L provided in the entire length of the steel pipe 1 so that the boarding board S can be suspended. Also, in order to prevent the runout of the short cylinder 2, the upper and lower circular flat plates 3
・ Short-diameter short steel pipes 3 '・ 4' are attached to the center of each of the 4 and the upper rotation stopper pieces 5 ・ 6 ・ 7 are attached to the outer circumference.
And, the lower detent pieces 5 ', 6', 7'are set so as to come into close contact with the side surfaces of the outer ring of the bearing row. At this time, if the upper detent pieces 5/6 and 7 are applied to the right side surface of the bearing row, the lower detent pieces 5 ′, 6 ′ and 7 ′ are applied to the left side surface of the bearing row, respectively, the upper and lower short steel pipes. When vertically attached to the outer circumference of 3 '・ 4', different bearings are sandwiched between them to prevent rotation of the bearings, to prevent tilting of the short cylinder and center run-out, and to prevent rotation of the circular flat plate. (Inner diameter 8 mm Outer ring outer shape 2
If a 2mm shield bearing is used in the bearing row, the distance between the extension line of the section 5'and the section 5 should be 22mm.) Next, these short steel pipes 3'and 4 ' As an outline of the governor D and the brake D'on the extending short cylinder axis G, G ', one is configured to automatically adjust the acceleration and the other is configured to manually stop the rotation of the short cylinder axis. For simplicity, the belt-shaped spring and the centrifugal weight are provided on the rotary shaft, and the manual brake has a structure in which the rotary shaft is controlled by the annular wedge T in the gap between the rotary shaft and the outer shell (a part of the drawing is omitted). In addition, a blade made of poly material, etc. is used to protect the feng shui when necessary.
I'm trying to descend while disconnecting. In addition, if the structure is such that the extension steel pipe to the ground is extended only at the time of descending to the second floor, it is convenient because the space below the floor can be secured even if it is installed in each window. It should be noted that the description of the reduction of the friction loss due to different materials and the other examples other than the above are omitted because they are slightly inferior.

[0006]

INDUSTRIAL APPLICABILITY The present invention overcomes the current state of the stationary escape mechanism that is currently abandoned, and in order to prevent the tragedy of jumping down, which is difficult to solve on the evacuation stairs, a rod-shaped escape machine of rain and strap size It is the only thing that can be set up so that it is not conspicuous in the design of the building by installing a necessary number, and it can be continuously escaped, and because it uses a sealed bearing, it is clean and does not require maintenance. It is easy to install and should be an integral part of architecture.

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view of an overall view of the present invention.

FIG. 2 is a perspective view of an internal unit of the present invention.

3 is a partially cutaway side view of the internal machine of FIG.

[Explanation of symbols]

1. Steel pipe 2. Short male thread cylinder 3 ・ 4. Upper and lower circular flat plate 3s, 4s Stay part 3 ', 4'Short steel pipe 5, 6, 7 Upper rotation stop segment 5', 6 ', 7'Lower rotation stop segment F frame GG' Vertical rotation axis D Governor
D'brake H blade K / K 'bearing bearing
S Board A / B / C Bearing row position L Slit gap T Ring wedge

Claims (4)

[Claims] 1. A small-diameter bearing having an appropriate number of circumferences instead of a screw thread, in which one of a pair of screw threads is formed, which is a female thread on the inner circumference of a steel pipe and a male thread having an appropriate diameter and located on the inner central axis of the steel pipe. Attach the row and increase the pitch of both screws so that it fits within the pitch of the other thread.One of them is the stationary side and the other is the rotating side. An evacuation escape device that lowers, but projects a stay of a frame bearing its rotation shaft, and equips a tip with a boarding / alighting hook or a boarding / alighting hook, and slides down a screw rod using the upper and lower surfaces of the bearing outer ring. 2. A large-diameter male screw according to claim 1 is used as a rotating side, and a small-diameter bearing is formed like a female screw at an appropriate dividing position on the inner circumference of the long steel pipe so as to screw into the male screw pitch. Mounted in a vertical row, the mounting frame of the rotary shaft bearing is projected to the outside through the slit gap provided over the entire length of the long steel pipe, and the loading / unloading cage or hook is mounted at the tip of the frame. An escape escape device that is installed in a position where it is in intimate contact with the left and right sides of the outer ring, avoiding the same bearing, and prevents rotation and runout of the male screw without disturbing the rotation of the bearing. 3. An evacuation escape device having a function of automatically and manually preventing excessive rotation by interposing a governor mechanism and a brake mechanism between the rotating side and the stationary side according to claim 1. 4. An evacuation device for reducing friction of a female screw and a male screw by the screw rod according to claim 1, wherein one side is polished and the other side is covered with a plastic material including nylon.