JPH08169676A - Threshold of elevator hall - Google Patents

Abstract

PURPOSE: To make installation of a dust receptacle metal piece to a threshold easily. CONSTITUTION: An L-shaped projection 5c is provided in the upper part on each side of a dust receptacle metal piece 5, and a low bulge 5d is furnished on the hall side of the projection 5c. The projection 5c is inserted from below into a punch groove 14B formed in the center of a threshold 1 and is folded. The bulge 5d is fitted in a recess provided at the bottom of a groove 3A formed in the bottom part on the hall side of the punch groove 14B.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator hall sill.

[0002]

2. Description of the Related Art FIG. 4 is a front view showing an example of a conventional elevator hall, showing a case where a hall door is a single-pull double-door type.
Further, FIG. 5 shows an enlarged detailed view of the AA cross section of FIG. 4.

In FIGS. 4 and 5, a three-way frame 12 is installed via a mortar 6 at an opening of an elevator hall provided on a wall 7 of a building. On the right side of the three-way frame 12, a platform button indicator 20 is provided upright, and a plurality of platform buttons are vertically mounted on the platform button indicator 20.

A sill 1 described later in detail is provided laterally at the tip of the landing floor, and a plurality of dust receiving fittings 5C described later in detail are fixed to the lower surface of the sill 1 by welding in advance as described later. . At the upper part of the sill 1, the above-mentioned pulling 2
Single-door type landing doors 2A and 2B are erected, and these landing doors 2A and 2B are suspended by rails (not shown) via door hangers (not shown) that are provided horizontally behind the three-way frame 12.

In FIG. 5, the sill 1A has a part of the tip at the tip of the mortar 6 installed on the floor take-out portion 7a slightly protruding from the wall 7 of the building on the landing floor in the direction of the hoistway 20. It is laid so as to project into the hoistway 20.

This sill 1A is made of a material stamped from an aluminum material. In this sill 1A, a sill groove 3A and a sill groove 3B are formed on the left and right with respect to the upper surface,
A guide shoe 9 hung vertically at the lower ends of the landing doors 2A and 2B is loosely fitted in these threshold grooves 3A and 3B. Also,
As shown in FIG. 6, four elliptical holes 4 are formed at the bottoms of the sill grooves 3A and 3B.

At the left end of the sill 1A, a substantially U-shaped die groove 14A having an opening at the left end is formed by extrusion. Also,
At the center of the sill 1A, a die groove 14D having an open lower end is also formed by extrusion, and at the right end of the sill 1A, a narrow die groove 14C having an open lower end is also formed.

Among these, at the left end of the mold groove 14A at the left end, as shown in FIG. 6 showing a partial plan view of the sill 1A, a plurality of ear fittings 1a formed in an L shape in FIG.
The head is fixed to the bolt inserted. An elliptical hole 1b is formed in advance in the ear fitting 1a in an upper portion that is flush with the upper surface of the sill 1A.

The trapezoidal metal fitting 5 provided on the lower surface of the sill 1A is made of a thin mild steel plate of about 0.8 mm, is an isosceles right triangle in FIG. 5, and is U-shaped in the right side view not shown in FIG. Is formed in. These dust catches 5
A circular hole is formed on the upper right side of the above. In the right side view (not shown), the reinforcing bar pieces 10 are horizontally welded to both sides in a direction orthogonal to the paper surface, and each dust receiving bracket 5 is inserted through each reinforcing bar 10. It is fixed to the threshold 1A.

The sill 1A is a rebar 10 having a small heat capacity.
By fixing the five dust receiving metal fittings 5 via, it is taken into consideration that thermal distortion does not occur due to welding and discoloration does not occur in the alumite treatment of the surface.

In the sill of the elevator hall constructed as described above, a part of the mortar 6 above the three-way frame 12 is placed on the sill 1A in the installation work for laying the sill 1A on the floor take-out portion of the mortar 6. Formed threshold grooves 3A, 3
In order to remove the mortar pieces that have entered the sill grooves 3A and 3B, an elliptical hole 4 is formed in the sill 1A, and dust may be removed from the lower part of the elliptic hole 4 to remove the mortar pieces. A bracket 5 is provided. In FIG. 5, reference numeral 8 indicates
The mortar pieces dropped from the threshold grooves 3A and 3B are shown.

Further, even when the elevator is in operation, dirt or the like adhering to the soles of the shoes of passengers who get in the car is sill groove 3
When entering A and 3B, the landing doors 2A and 2B may not operate smoothly, so dirt and foreign matter may be guided into the guide grooves 3A and 3B.
The dust receiving bracket 5 is also installed for discharging to the hoistway 20 through the dust receiving bracket 5.

[0013]

However, in the sill of the elevator hall constructed as described above, the work of butt-welding one side of the reinforcing bar 10 to both side surfaces of the dust catch fitting 5 and the reinforcing bar 10 on the sill 1A. Not only does the welding work take a long time, but the coating film on the surface of the sill 1A may be slightly discolored by the heat when the reinforcing bar 10 is welded to the lower surface of the sill 1A. If the reinforcing bar 10 is one and penetrates through the upper end of the dust receiving fitting 5, the welding angle of the reinforcing bar 10 is determined, so the welding work is easy, but then, because of the reinforcing bar 10, the mortar 6
May not pass through.

Therefore, in order to reduce the heat capacity of the reinforcing bar 10 and to reduce the heat input by welding, a material having a diameter of about 8 mm is used, and the welded part of this reinforcing bar 10 also includes the die groove 14D and the guide groove 3B. The lower surface of the vertical bone formed between them is avoided, and the lower surface on the right side in FIG. 5 adjacent to the opening of the die groove 14D is performed.

However, if the welding position of the reinforcing bar 10 with respect to the dust receiving fitting 5 shifts in the direction of the hoistway 20 in FIG. 5, the welding position of the reinforcing bar 10 becomes a vertical frame between the die groove 14D and the guide groove 3B. Immediately below, the heat transfer to the upper surface of the sill 1A may cause discoloration of the alumite-treated coating on the surface.

In addition, the welding work of the reinforcing bar 10 to the dust receiving fitting 5 and the welding work of the reinforcing bar 10 to the sill 1A are limited due to the schedule of other works of the building in which this elevator is installed. Must be done within the specified period. Then, the objective of this invention is to obtain the threshold of an elevator hall which can fix a dust receiving metal fitting easily, without discoloring a threshold.

[0017]

According to a first aspect of the present invention, there is provided a sill for an elevator hall, which is laid in a floor take-out portion of an elevator hall and has a dust catching metal fixture fixed to a lower portion thereof.
It is characterized in that a pair of protrusions which are fitted into the die-cutting hole formed in this threshold from the lower side and which are locked by the die-cutting hole by bending are formed at the upper end of the dust receiving fitting.

Further, in the invention according to claim 2, in a sill of an elevator hall which is laid on a floor take-out part of an elevator hall and a dust catch fitting is fixed to a lower portion, a horizontal convex portion is formed at an upper end of the dust catch fitting. However, the fastening hole into which the fastener to be inserted into the die-cutting hole formed in the threshold is inserted is formed in the convex portion.

Further, in the invention according to claim 3, in the sill of an elevator hall, which is laid on the floor take-out part of the elevator hall, and the dust receiving metal fitting is fixed to the lower part, the head is formed in the die-cutting hole formed in the sill. It is characterized in that the shaft part of the locking tool to be press-fitted is fixed to the bottom part of the dust receiving fitting.

[0020]

In the sill of the elevator hall according to the first aspect of the present invention, the dust-receiving bracket is fixed to the sill simply by bending the projection without welding with a welding machine. Further, in the sill of the elevator hall according to the second aspect, the dust receiving metal fitting is fixed to the sill by the fasteners inserted in the convex portions. Further, in the sill of the elevator hall according to claim 3, the head is press-fitted into the sill, and the shaft portion is fixed to the sill by a locking tool inserted into the dust receiving fitting.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an elevator hall sill of the present invention will be described below with reference to the drawings. 1 is a longitudinal sectional view showing a threshold of an elevator hall of the invention according to claim 1, which corresponds to FIG. 5 shown in the related art, and FIG.
FIG. 3 is a perspective view of a dust receiving metal fitting incorporated in a sill of an elevator hall of the invention described in FIG. 1 and an explanatory view showing a method of assembling the dust receiving metal fitting.

In FIGS. 1 and 2, what differs from FIGS. 4 and 5 shown in the prior art is the structure and assembling method of the sill and the dust receiving bracket. That is, as shown in the perspective view of FIG. 2, in the dust receiving fitting 5, the substantially L-shaped protrusions 5c are symmetrically formed with respect to the central portion of the bent portions 5b formed on both sides of the bottom portion 5a. On the left side of the formed protruding portions 5c, a protruding portion 5d slightly protruding upward is also formed symmetrically.

On the other hand, the minute convex portion shown in FIG. 5 is not formed on the right side of the opening formed at the lower end of the mold groove 14B formed on the sill 1, and is horizontal on the left side of the opening. There is no convex part and it is vertical.

In the sill of an elevator hall where the sill 1 and the dust receiving bracket 5 are thus formed, when the dust receiving bracket 5 is incorporated into the sill 1, a pair of protrusions 5c protruding from the upper portion of the dust receiving bracket 5 are provided. After inserting from the opening at the lower end of the mold groove 14B formed in the central portion of the sill 1, slightly move to the right to move the left convex portion 5d to a shallow concave portion formed below the bottom of the sill groove 3A. To insert.

Next, from the outside of the side surface of the dust receiving fitting 5,
As shown in FIG. 2, the tip of the driver 15 is inserted into the upper end of the mold groove 14B, and the lower end of the tip of the driver 15 is bent outwardly as shown in FIG. In this way, the back surface on the right side of the opening of the mold groove 14B is pressed.

Then, since the left and right ends of the upper end surface of the dust receiving fitting 5 are opposed to the lower surface of the sill 1 with a slight gap, the sill 1
Due to the convex portion 5d fitted in the concave portion of the lower surface of the dust collecting metal fitting 5, the dust receiving fitting 5 does not move to the left in FIG. Therefore, the dust catch 5 does not fall off the threshold 1.

In the sill of the elevator hall constructed as described above, after the mortar 6 has been laid on the floor take-out portion, the bottom surface and both side surfaces of the dust receiving fitting 5 are supported by the mortar 6 to be attached to the sill 1. Since it is possible to omit the welding process for, it is possible to manufacture it with a 0.6 mm-thick mild steel plate, for example, and to easily fix it to the sill 1 by bending the projection 5c.

Since the welding process can be omitted and the welding machine is not required to be carried in or operated, the work is facilitated, and the dust receiving metal fitting 5 is mounted at a convex position protruding from the dust receiving metal fitting 5. Positioning is performed by fitting the portion 5d into the recess on the back surface of the guide groove 3A of the sill 1, so that no attention is required for positioning.

Similarly, since the welding process can be omitted, it is possible to prevent the discoloration of the plating on the surface of the sill 1 due to the heat input during welding, and to prevent the deterioration of the design surface. In the above-mentioned embodiment, the shape of the convex portion 5d viewed from the side surface is further formed on the upper surface of the convex portion 5d shown in FIG.
The left and right convex portions may be fitted into the ends of the oval holes 4 formed in the sill 1 to prevent movement of the dust receiving fitting 5 in the direction orthogonal to the paper surface of FIG.

Next, FIG. 3 (a) is a partial perspective explanatory view showing an embodiment of an elevator hall sill according to a second aspect of the present invention, in which the construction of the dust catch fitting is different from that in FIG. That is,
In the dust receiving fitting 5A shown in FIG. 3 (a), a convex portion 5e is horizontally bent outward on both sides of the upper end.
Bolt holes 5e1 are provided in the convex portions 5e, respectively.

In the sill of the elevator hall in which the dust receiving fitting 5A is formed in this manner, the heads of the pair of bolts 17 are inserted into the mold groove 14B of the sill 1 and then these bolts 17 are inserted.
After fitting the bolt holes 5e1 of the projections 5e projecting on both sides of the dust receiving fitting 5A to the shaft portion of, the nut 18 is tightened.

Further, FIG. 3B is a partial perspective explanatory view showing an embodiment of the threshold of the elevator hall of the invention according to claim 3, and is a view corresponding to FIG. 3A. In FIG. 3 (b), a through hole is formed in the center of the bottom of the dust receiving fitting 5B, and a shaft portion of a nylon presser foot 19 having a taper formed on the shaft portion is formed in the through hole. Is inserted from above. When the presser 19 is inserted, the catch receiving member 5B is fixed to the bottom surface of the sill 1 by pressing the presser 19 and the head into the opening at the lower end of the mold groove 14B.

In this case, the dust receiving fitting 5B is used as the threshold 1
Since no tools are required for the work of fixing to, the work of mounting is even easier. Hard rubber may be used as the material of the presser foot 19.

[0034]

As described above, according to the invention of claim 1,
In the sill of an elevator hall, which is laid on the floor take-out part of the elevator hall and has a dust receiving metal fixture fixed to the bottom, fits into the die-cutting hole formed in this sill from below and is locked in the die-hole by bending. By forming a pair of protrusions on the upper end of the dust receiving bracket, the dust receiving bracket is fixed to the sill by bending the protrusions without welding with a welding machine, so the sill does not discolor, It is possible to obtain a threshold for an elevator hall to which the dust receiving bracket can be easily fixed.

According to the second aspect of the present invention, in a sill of an elevator hall, which is laid on the floor take-out part of the elevator hall and has a dust catch metal fitting fixed to the lower portion, a horizontal convex portion is provided at the upper end of the dust catch metal fitting. By forming a fastening hole into which the fastener that is inserted into the die-cutting hole formed in the sill is inserted in the convex portion, the dust receiving fitting is attached to the sill by the fastener that is inserted into the convex portion. Since it is fixed, it is possible to obtain the sill for the elevator landing where the dust receiving bracket can be easily fixed without discoloring the sill.

Further, according to the invention of claim 3,
In the sill of an elevator hall laid in the floor take-out part of an elevator hall and the dust catch metal fittings are fixed to the lower part, the head part of the fastener that is press-fitted into the die-cutting hole formed in the sill By fixing it to the bottom, the head is press-fitted into the sill and the shaft is inserted into the dust receiving fitting by the locking tool, so it is fixed to the sill, without discoloring the sill.
It is possible to obtain a threshold for an elevator hall to which the dust receiving bracket can be easily fixed.

[Brief description of drawings]

FIG. 1 is a vertical sectional view showing an embodiment of an elevator hall sill according to claim 1.

FIG. 2 is a partial perspective view showing an operation of a threshold of an elevator hall according to claim 1.

FIG. 3A is a partial perspective view showing an embodiment of an elevator hall sill according to claim 2; (B) is claim 3
The partial perspective view which shows one Example of the threshold of the elevator hall described in FIG.

FIG. 4 is a front view showing an elevator hall where a conventional elevator hall threshold is laid.

5 is an enlarged detailed view of the AA cross section of FIG. 4;

6 is a partial plan view of FIG.

[Explanation of symbols]

1 ... sill, 2A, 2B ... landing door, 3A, 3B ... sill gutter,
4 ... Elliptical holes, 5, 5A, 5B ... Dust receiving metal fittings, 5c ... Projections, 5d, 5e ... Projections, 6 ... Mortar, 7 ... Wall, 8 ...
Dust, 9 ... Guide shoe, 14A, 14B, 14C ... Mold groove, 17
… Bolts, 19… Pressers.

Claims (3)

[Claims] 1. In a sill of an elevator hall, which is laid on a floor take-out part of an elevator hall and has a dust receiving metal fixture fixed to a lower portion thereof, the die-cutting hole formed in the sill is fitted from below and the die is bent. A sill of an elevator hall, wherein a pair of protrusions that are locked in the holes are formed at the upper end of the dust receiving fitting. 2. An elevator landing sill, which is laid on a floor take-out part of an elevator landing and has a dust catch metal fitting fixed to a lower portion thereof, wherein a horizontal convex portion is formed at an upper end of the dust catching metal fitting and is formed on the sill. A sill of an elevator hall, wherein a fastening hole into which a fastener to be inserted into a die-cutting hole is inserted is formed in the convex portion. 3. An elevator shaft sill, which is laid on a floor take-out part of an elevator hall and has a dust receiving metal fixture fixed to a lower portion thereof, in which a head of a locking tool whose head is press-fitted into a die-cutting hole formed in the sill. A sill for an elevator hall, wherein a part is fixed to the bottom of the dust receiving bracket.