JPH0216155B2 - - Google Patents

Description

[Detailed Description of the Invention] (Technical Field) The present invention is an emergency slide that is attached to a play slide or near a building and is used to safely rescue people outside in the event of an emergency such as a fire or earthquake. It's about slides.

(Prior Art) Many types of slides of this type have been proposed in the past, and a typical example is one in which a slope for people to slide is spirally attached to a support. As a technique related to such slides, for example, there is an invention called ``Method for manufacturing various types of slides'' proposed in Japanese Patent Application Laid-Open No. 198364/1983. According to the description of the claims, this invention includes: ``a step of boarding out a sliding floor member 2 that is arc-shaped when viewed from a plane and a sliding floor member 3 that is trapezoidal when viewed from a plane; The process of connecting 3 and 3 alternately by aligning the longer side of each side is
A manufacturing method for each type of slide is characterized in that the predetermined portions of the sliding floor members 2 and 3 are supported by a stage 8 provided on the outer wall of a building 7. The following problems arise because the metal plates (often made of stainless steel) are simply joined together to form an integral body.

Since the slope of the slide must have a spiral shape as a whole, when a number of metal plates are joined together to form a completed slope, a considerable difference occurs in the internal stress between the outside and the inside of each metal plate. This is a considerable effort because it is necessary to form a predetermined curved surface from a flat metal plate when joining them together to form a spiral shape or when fixing them to each support arm. This is because they are doing so.

Since considerable force must be applied when joining each metal plate to each other or when securing it to each support arm, the joining or securing work is quite difficult, and the manufacturing workability is very poor. .

If there is a considerable difference in the internal stress between the outside and inside of each metal plate, when the slide is completed, the slope will have unevenness, which not only looks unsightly but is also unsafe for users. It may give you a feeling of anxiety that it might not be possible.

In order to solve this problem, for example, we cut out the floorboards that make up the slope position from a metal plate, and for each unit of this floorboard, we cut out one side of the outside and the inside of the diagonal target position. For each unit, mold etc. are made so that the other side of the unit is higher, and the other side of the outside of each unit and one side of the inside of the diagonal target position are lower and there is continuity between them. It is conceivable to perform a twisting process by However, when each floorboard is formed in this manner, a portion that should be the inflection point of each curved surface appears approximately at the center of the floorboard, giving a rugged feel.

(Object of the Invention) The present invention has been made in view of the above-mentioned problems, and its purpose is to enable metal plates to be joined or fixed without difficulty when forming a spiral slide. To improve the efficiency of manufacturing work by making sure that when metal plates are joined or fixed, there will be no difference in the internal stress of each part, so that unevenness will not occur on the completed slope. To provide a slide which is aesthetically beautiful and can be used by users with peace of mind by preventing the occurrence of unevenness giving a rugged feeling on the surface.

(Structure) In order to achieve the above object, the present invention has the following steps: A large number of support arms are arranged and fixed to the outer periphery of a support column in a substantially horizontal and overall spiral shape.
In a slide constructed by fixing a spiral slope formed by bonding a plurality of metal plates to each other on each of these support arms, each of the metal plates is formed into a substantially fan-shaped trapezoidal shape, and the metal plate has a slope formed in a spiral shape. A diagonal crease and a number of folds in substantially the same direction as the diagonal crease are formed, and the distance between each crease on the outside is made larger than that on the inside to form a predetermined curved surface that is convex downward on the metal plate. The gist of the slide is that the receiving surface of each support arm that receives the slide is a curved surface that is concave upward to correspond to the shape of the bottom surface of the metal plate.

(Embodiment) An embodiment of the present invention will be described below with reference to the drawings. Figs. 1 and 2 show a front view and a plan view, respectively, of a slide 10 embodying the present invention. This slide 10 is used for emergency purposes, and is supported by pillars 11 erected near the building.
and a slope 20 fixed to this support column 11 via a support arm 30. The slide 10 of this embodiment has a height that can be adapted to a two-story building, and has a dance area 12 connected to the second floor of the building formed at its upper part.
Further, a roof 13 is formed at the upper end of the support column 11. Note that on each support arm 30 located between the support column 11 and the slope 20, a protection member 14 made of a metal wire is fixed in a spiral shape.

The slope 20 has side plates 22 and handrail rods 23 fixed to the spiral frame 21, and both side plates 22 and 23.
It is formed by fixing a sliding surface 24 formed by joining a large number of metal plates 25 to each other in between. Each metal plate 25 is made of a stainless steel plate, and is shaped into a substantially trapezoidal fan shape, as shown in FIGS. 3 and 4. In the case of the metal plate 25 of this embodiment, the metal plate 25 is
The pieces are cut so that the straight cutting lines at both left and right ends intersect at 45 degrees so that one perforated disk can be constructed from the pieces. Of course, both the upper and lower arcs of each metal plate 25 in FIG. 3 can be obtained by joining eight metal plates 25.
Each is approximately a circle. In addition, each metal plate 25 has
A diagonal fold 25a and a number of folds 25b are formed in substantially the same direction as the diagonal fold 25a, so that the distance between each fold on the outside is larger than that on the inside.

That is, as shown in FIG. 4, each fold 25b is formed by dividing the arc at the lower end of one metal plate 25 into equal parts and sequentially determining equal dividing points _P1 to Pn from the right side, and then forming the folds 25b adjacent to this metal plate 25. By dividing the arc at the upper end of the other metal plate 25 into the same number of equal parts, determining equal dividing points Q ₁ to Qn, and sequentially connecting these equal dividing points from the same direction,
There is a straight line extending in substantially the same direction as the diagonal fold line 25a. Note that the arrows in Fig.
This indicates the direction of sliding when sliding down.

Each of the above diagonal folds 25a and 25b
are sequentially pressed from one side onto one side of each metal plate 25 using a press or the like. In this case, since the diagonal fold line 25a and each fold line 25b are straight lines, they can be formed without using any complex-shaped molds, and their formation is extremely easy. As a result, as shown in Figure 6,
A predetermined downwardly convex curved surface is naturally and easily formed in each metal plate 25 by the diagonal folds 25a and 25b.

The curved surface corresponding to the curved surface of this metal plate 25 is the fifth
As shown in the drawings and FIG. 6, the support surface 31 of the support arm 30 is also formed. Thereby, the support surface 31 of the support arm 30 corresponds to a predetermined curved surface that is convex below the metal plate 25.

(Effect of the invention) Slide 10 according to the present invention configured as described above
Since each metal plate 25 has a predetermined downwardly convex curved surface, the work of fixing it to each support arm 30 or the work of joining each metal plate 25 can be carried out without difficulty. In other words, each metal plate 2
5 can be placed on each support arm 30 and fixed as is by fixing means such as welding. Therefore, the work of joining or fixing each metal plate 25 can be performed very easily. (Achievement of purpose) Furthermore, since the joining or fixing work of each metal plate 25 can be performed while each metal plate 25 is in its natural state, it is possible to prevent differences in the internal stress of each part. Completed slope 2
No unevenness occurs on the sliding surface 24 of 0. (Achievement of purpose) Furthermore, the sliding surface 24 of the completed slope 20
Since there are no irregularities on the surface, the slide 10 looks beautiful and does not give a rugged feeling, and the user can use the slide 10 with peace of mind. (Achievement of purpose) To explain this beautiful point in more detail, each diagonal fold 25a and the fold 2
5b becomes one harmonious pattern,
Each diagonal fold line 25a and fold line 2 of the metal plate 25
The surface between 5b becomes a light reflecting surface, which gives an aesthetically pleasing impression when viewed from a distance.

Furthermore, as shown in FIG. 4, each of the diagonal folds 25a and 25b is inclined inward with respect to the direction in which the person is sliding, as shown by the arrows, so that the person cannot easily move onto the sliding surface 24. When sliding, each diagonal fold 25a and fold 25b guide the person so as to always urge the person towards the support 11 side. This allows a person to smoothly slide down the slide 24.

In the embodiments of the present invention, an example in which the present invention is applied to a two-story building has been described, but it goes without saying that the present invention can also be applied to a very high slide placed near a high-rise building. be. Further, although the size of each metal plate 25 is such that eight metal plates can constitute one perforated disc in the above embodiment, this size can be changed as appropriate.

(Summary) As detailed above, in the present invention, as exemplified in the above embodiment, a large number of support arms are arranged and fixed to the outer periphery of the column in a substantially horizontal and overall spiral shape. , in a slide constructed by fixing a spiral slope formed by joining a plurality of metal plates to each other on each of these support arms, each of the metal plates is formed into a substantially fan-shaped trapezoidal shape, and this metal plate is A predetermined curved surface that forms one diagonal crease and a number of creases in substantially the same direction as this diagonal crease, and makes the interval between each crease on the outside larger than that on the inside so that it is convex downward on the metal plate. The feature is that the receiving surface of each support arm that receives the slide is a curved surface that is concave upward to correspond to the bottom shape of the metal plate. It is possible to provide a slide that is easy and has no unevenness on the slope.

[Brief explanation of drawings]

Fig. 1 is a front view of the slide according to the present invention, Fig. 2 is a plan view thereof, Fig. 3 is a plan view of one metal plate, and Fig. 4 is an enlarged view of two metal plates joined together. A plan view, FIG. 5 is a partially enlarged front view showing one support arm fixed to a support column, and FIG. 6 is a longitudinal sectional view taken along the line -- in FIG. 4. Explanation of symbols 10...slide, 11...post, 20
...Slope, 22...Side plate, 23...Handrail rod, 24
...Sliding surface, 25...Metal plate, 25a...Diagonal crease, 25b...Fold line, 30...Support arm, 31...
supporting surface.

Claims (1)

[Claims] 1. A number of support arms are arranged and fixed to the outer periphery of a column in a substantially horizontal and overall spiral shape, and a slope is formed by joining a plurality of metal plates to each other and forming a spiral shape on each of these support arms. In the slide constructed by fixing the metal plates, each of the metal plates is formed into a substantially fan-shaped trapezoidal shape, and one diagonal fold of the metal plate and a large number of folds in substantially the same direction as this diagonal fold are formed, and The distance between each fold on the outside is made larger than that on the inside to form a predetermined downwardly convex curved surface on the metal plate, and the receiving surface of each support arm that receives the slide is set on the metal plate. A slide characterized by having a curved surface that is concave upward to correspond to the shape of the bottom surface.