JPH0221502Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] This invention relates to a gate-shaped landing side entrance/exit frame, usually called a three-sided frame, provided at the landing side entrance/exit of an elevator.

[Technical background of the invention and its problems] As shown in Fig. 5, the elevator landing side entrance/exit frame, which is generally called a three-sided frame, has a gate on the floor of the elevator landing side entrance/exit opening in the wall 1 of the building. It is set upright and fitted into the shape. This structure consists of a pair of vertically long side frames 2, 2 which are arranged opposite to each other on the left and right sides, and a horizontally long upper frame 3 which is horizontally suspended and fastened to the upper ends of these side frames 2, 2. The opening surrounded from three sides by the side frames 2, 2 and the upper frame 3 is opened and closed by doors 4, 4 arranged on the rear side (on the hoistway side) of these frames.

The pair of left and right side frames 2 and upper frame 3 of the landing side entrance frame are each formed using thin stainless steel plates, and the side frames 2 have a roughly irregular lip groove shape in cross section as shown in FIG. , its inner plate 2a
As shown in FIGS. 6 and 7, an inverted L-shaped fastening metal fitting 5 is attached to the upper end of the back surface by welding or the like. As shown in FIG. 7, the upper frame 3 has a shape that is folded upward in a hook shape so that the front side (the end side) has a U-shaped cross section. 6 is fitted and fixed by welding or the like, and the left and right ends of the U-shaped portion 3a are closed.
This upper frame 3 has left and right ends connected to the above-mentioned both side frames 2, 2.
It is placed entirely on top of the upper end and is horizontally suspended by being fastened to the fastening fittings 5 with bolts and nuts 7. Note that the provision of the small corner pieces 6 at the left and right ends of the U-shaped portion 3a of the upper frame 3 and the placement of the left and right ends of the upper frame 3 entirely on the upper ends of both side frames 2, 2 depend on the material of each frame material. This is to simplify cutting, assembly, etc.

By the way, in the landing entrance/exit frame with the above configuration, wall 1
When installed in the entrance/exit of the frame 2 on both sides,
The outer peripheral surface portions of the upper frame 2 and the upper frame 3 are separated by the wall surface 1a of the wall 1, that is, by the imaginary lines shown in FIGS. Since the part exposed on the front side is important for its design, it must be finished beautifully with careful attention to detail. For this reason, in the case of the entrance/exit frame on the landing side made of stainless steel plate having the above-mentioned structure, the visible parts of the left and right ends of the U-shaped part 3a of the upper frame 3 are problematic in terms of design, and after welding the small corner pieces 6, the welding This requires very troublesome and time-consuming work, such as smoothing of the parts and further surface finishing processing to match the surface condition of the side frame 2, such as hairline finishing with sandpaper, etc. There was a problem in that the cost was extremely high due to the use of expensive stainless steel plate material.

On the other hand, since the above-mentioned stainless steel plate materials are about 10 times more expensive than steel plates, recently SUS clad plywood 8, shown in Figure 8, has been developed as a material that guarantees the appearance performance and can reduce the material cost by about 30%. is commercially available. This is an extremely thin SUS layer 8a, 8 on the front and back sides.
b is made into a sandwich-like structure by providing an iron layer 8c in the middle core. If this plywood 8 is used to manufacture the landing side entrance/exit frame, the material cost can be significantly reduced and costs can be reduced. However, when this plywood 8 is used, as shown in FIG. 7 above, The iron layer 8c is visible at the left and right ends of the U-shaped portion 3a of the upper frame 3 where the small corner pieces 6 are provided, and the iron layer 8c is very unsightly due to poor coloring and is difficult to prevent. There were problems with rust, etc., and it was impossible to commercialize it.

Therefore, in order to solve the above-mentioned problem, the respective ends of the side frame 2' and the upper frame 3' shown in FIG.
It is conceivable that the pieces are cut at 45 degrees and then fastened by butting them together, but in this case, in order to obtain the inclined butted end faces of both the upper end of the side frame 2 and the left and right ends of the upper frame 3, it is necessary to cut a long piece. Since the end face of the object must be machined and the angle of inclination of the end face must be precisely ensured, the machining and finishing work is troublesome, as well as the butting angle, flushness, and butting of the two. There are problems such as miniaturization and uniformity of the gaps between them that require highly skilled and highly skilled techniques and a considerable amount of effort during assembly.

[Purpose of the invention] This invention was created in view of the above circumstances, and it eliminates the troublesome work of welding the left and right ends of the upper frame, smoothing the welded surfaces, and finishing the surface, and eliminates the need for high-precision machining and finishing of the butt end faces. There is no problem with assembly using advanced technology, and there is no problem with using inexpensive materials such as SUS clad plywood, and the landing area is easy to manufacture and assemble, has an excellent exterior design of exposed parts, and can reduce costs. The purpose is to provide a side entrance frame.

[Summary of the invention] In order to achieve the above purpose, the elevator landing side entrance/exit frame of this invention has the left and right ends of the front facing plate of the upper frame cut out, and the upper ends of the inner plates of both side frames are cut out. A cutout is made to a depth equivalent to the vertical width of the upper frame, and the left and right ends of the upper frame are mounted on the upper end notches of the inner plates of both side frames, and the side frames are placed on the left and right end notches of the index board of the upper frame. This is a configuration in which the two side frames and the top frame are fastened together with the two side frames and the top frame connected flush with each other. It is hidden and cannot be seen from the outside.

[Embodiment of the invention] An embodiment of the invention will be described below with reference to FIGS. 1 to 4. Figure 1 is a plan view of a portion corresponding to section A in Figure 5 mentioned above, and Figure 2 is a front view of the same part, and the entire frame is almost the same as the gate-shaped three-sided frame shown in Figure 5. Therefore, illustration is omitted.

Here, in the figure, 12 is a pair of left and right side frames, 13 is an upper frame horizontally suspended on the upper ends of the left and right side frames, and these side frames 12 and upper frame 13 have a thickness of, for example, stainless steel
It is made of sheet metal with a thickness of approximately 1.5 to 2.0 mm, and its cross-sectional shape is similar to that shown in FIGS. 6 and 7. That is, the side frame 12 has a substantially irregular lip groove shape in cross section, and the upper frame 13 has a shape that is folded upward into a hook shape so that the front side (the facing side) has a U-shaped cross section.

More specifically, the upper frame 13 has a horizontally long shape, and as shown in FIG. The top plate 13c is bent backward from the top end of the index plate 13b to form a hook-shaped cross section. The left and right ends of the index plate 13b of the upper frame 13 are cut out. The cutout portion 13d is formed in a range slightly shorter than the width in the inner and outer directions of the side frame 12, which will be described later, from the endmost surface over the entire vertical width direction of the index plate 13b. Note that 13e is a bolt hole formed near the left and right ends of the lower plate 13a.

On the other hand, the side frame 12 is vertically long, and as shown in FIG.
The outer plate 12c is bent further rearward from the outer side of 2b, the outer plate 12c is bent outward from the rear side of the inner plate 12a, and the outer plate is bent forward from the rear side plate (not shown). Because of this, the cross section has a substantially irregular lip groove shape. The upper end of the inner plate 12a of this side frame 12 is cut out. This notch 12d is formed at a depth corresponding to the vertical width dimension of the upper frame 13 from the upper end thereof over the entire front and rear width direction of the inner plate 12a. An inverted L with bolt holes 15a on the back side of the inner plate 12a of the side frame 12.
The letter-shaped fastening fitting 15 has its upper surface connected to the notch 12.
It is fixed flush with d.

For the upper ends of the pair of left and right side frames 12,
As shown in FIGS. 1 and 2, first, the left and right end portions of the upper frame 12 are fitted into the upper notch 12d of the inner plate 12a of the side frame 12, and the index plate 1 of the upper frame 13 is fitted.
The location plate 12b of the side frame 12 is placed in the notch 13d of the side frame 3b.
Insert the upper part of the side frame 12 in this way.
b and the index plate 13b of the upper frame 13 are tightly joined flush with each other, and the left and right ends of the upper frame 13 are placed on the notch 12d of the inner plate 12a of the side frame 12. In this state, the lower plate 13a of the upper frame 13 is fastened to the fastening fitting 15 with bolts and nuts 7. In this way, the upper frame 13 is horizontally suspended on the left and right side frames 12.

Therefore, in the landing side entrance/exit frame configured as described above,
By simply forming notches 12d and 13d in the upper part of the inner plate 12b of the side frame 12 and the left and right ends of the index plate of the upper frame 13, small square pieces can be welded to the left and right ends of the upper frame as shown in FIG. It eliminates the need for troublesome work such as smoothing and surface finishing of the welding surface, and also eliminates the need to ensure high processing accuracy such as cutting the ends diagonally and butting them together, as shown in Figure 9. The manufacturing work becomes easier. Also, when the side frame 12 and the upper frame 13 are fastened together, the notch 13d of the upper frame 13 and the side frame 12
The side frame 12
By butt-joining the index plates 12b, 13b of both the top frame 13 and the top frame 13 flush, the two are aligned, making the assembly work easy and convenient. Furthermore, during assembly, the left and right ends of the upper frame 13 extend to a position close to the outer plate 12c of the side frame 12, so that it serves as a receptacle for finishing material, such as mortar, on the wall surface 1a of the wall 1, similar to the conventional product, It can be installed without any problems with the connection.

In addition, in the assembled and installed state, the visible portion located in front of the wall surface 1a of the wall 1 on the left and right end faces of the upper frame 13 is the facing plate 12b of the side frame 12 and the outside plate 12.
The side frame 12 is completely hidden inside surrounded by c, and only the upper end surface of the side frame 12 is exposed. In other words, the only cross section of the frame material that is exposed to the outside is the upper end surface of the side frame 12, and this part is far higher than the human eye in an actual elevator hall and cannot be seen at all. Therefore, it has a very good design in terms of appearance. For this purpose, an inexpensive
Even if SUS clad plywood is used as a frame material, the appearance will be completely indistinguishable from solid wood, and the design will not be compromised.

In addition, in the above embodiment, the case where the side frame 12 and the upper frame 13 were made of stainless steel material was described, but
Without being limited to this, the above-mentioned inexpensive
The side frame 12 and the upper frame 13 may be constructed using SUS clad plywood, steel plate, steel alloy plate, or the like.

[Effect of the invention] As described above, this invention cuts out the left and right ends of the front facing plate of the upper frame, and also cuts the upper ends of the inner plates of the both side frames to a depth corresponding to the vertical width of the upper frame. Place the left and right ends of the upper frame in the notches at the upper ends of the inner plates of the both sides frames, and place the index plates of the side frames into the notches at the left and right ends of the index plates of the upper frame. Since the upper frame and the upper frame are fastened together with both facing boards flush with each other, the left and right end surfaces of the upper frame are hidden within the side frames and cannot be seen from the outside, which is a problem in terms of design. Therefore, there is no need for the troublesome work of welding the left and right ends of the upper frame, smoothing the welded surfaces, and surface finishing work, as well as the problems of high-precision machining of the butt end faces and assembly using advanced technology, as in the past.
Furthermore, there is no problem even if inexpensive materials such as SUS clad plywood are used, and the production and assembly are simple, and the landing side entrance frame has an excellent external design of the exposed part and can reduce costs.

[Brief explanation of the drawing]

Figures 1 to 4 show an embodiment of this invention, with Figure 1 being a plan view of the main parts in an assembled state, Figure 2 being a front view of the same, and Figure 3 showing the end portion of the upper frame. FIG. 4 is a perspective view of the upper end of the side frame, FIG. 5 is a front view of the entire doorway frame showing a conventional example, FIG. 6 is a sectional view taken along the line - in FIG. 5, and FIG. FIG. 5 is a perspective view of part A in FIG. 5, FIG. 8 is a sectional view of SUS clad plywood, and FIG. 9 is a partial front view showing another conventional example. 1... Building wall, 1a... Wall surface, 12... Side frame, 12a... Inner board, 12b... Marking board, 12
c... Outer plate, 12d... Notch, 13... Upper frame, 13a... Lower side plate, 13b... Marking board, 13
c... Upper plate, 13d... Notch, 15... Fastening metal fittings.

Claims (1)

[Scope of utility model registration request] In a gate-shaped elevator landing side entrance/exit frame consisting of a pair of side frames disposed opposite to each other on the left and right sides of the elevator landing side entrance/exit, and an upper frame suspended horizontally on the upper part of the both side frames, the front side view of the upper frame is as follows. Cut out the left and right ends of the attached plate, and cut out the upper ends of the inner plates of the above-mentioned both side frames to a depth corresponding to the vertical width of the above upper frame, and insert the left and right sides of the upper frame into the upper end notches of the inner plates of the both side frames. At the same time as placing the end portions on the rack, place the side frame side plate on the left and right end notches of the top frame plate, so that both side frames and the top frame are connected flush with each other. An entrance/exit frame on the landing side of an elevator, characterized in that it is configured by being fastened with.