JPS6321670Y2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to an entrance/exit door for an elevator, and particularly relates to an entrance/exit door in which a joint having a cushioning material is provided at the tip of the door body.

Some elevator entrance/exit doors have joints along the height direction at the ends, that is, at the side edges in the left and right direction, thereby improving the appearance and beauty of the ends.

FIG. 1 and FIG. 2 are a front view and a cross-sectional view showing an example of an entrance/exit door of an elevator commonly used in the past. In the figure, 1 is a floor, and 2 is a wall erected on the floor 1, a part of which is provided with an entrance 3 for an elevator. 4,4'
is an entrance/exit door whose upper end is appropriately suspended and whose lower end moves while being guided by a guide groove (not shown) provided in a part of floor 1. It opens and closes in the direction. Since the entrance/exit doors 4, 4' have a bilaterally symmetrical structure, the left entrance/exit door 4 will be described in detail below. Reference numeral 5 denotes a top plate constituting the door body of the entrance/exit door 4, and its left and right, i.e., widthwise tips, are bent into a U-shape over the entire length of the door in the height direction. and constitutes the back rear portion 5c. Reference numeral 5d denotes a plurality of mounting holes provided on the rear rear surface 5c, which are provided at predetermined intervals over the entire length of the door in the height direction. Reference numeral 6 denotes a joint made of a stainless steel plate or an aluminum plate formed into a U-shape, and includes a guide portion 6a, a side portion 6b, and a mounting portion 6.
c, and as shown in FIG. 2, is arranged so as to cover the tip of the entrance door 4 over the entire length in the height direction. Reference numeral 6d denotes a plurality of mounting holes provided in the mounting portion 6c, which are provided at the same intervals and in the same number as the mounting holes 5d. Reference numeral 7 denotes a cushioning material integrally made of an elastic body such as rubber, which is composed of an abutting part 7a and a clamping part 7b, and is formed to have the same length in the height direction of the joint 6 and the door. ing. Reference numeral 7c denotes a plurality of mounting holes provided in the clamping portion 7b, which are provided at the same intervals and in the same number as the mounting holes 5d. Reference numeral 8 denotes a presser plate made of steel plate, which has the same length as the joint 6 in the height direction of the door. Reference numeral 8a denotes a plurality of mounting holes having a dish-like shape on the back side, which are provided at the same intervals and in the same number as the mounting holes 5d. Reference numeral 9 denotes a fastening member consisting of a countersunk screw with a countersunk head, which has a mounting hole 5.
d, 6d, 7c, and 8a. Reference numeral 10 denotes a loose fastener made of a nut, which is tightened from the side opposite to the head of the fastening member 9. After the top plate 5, joint 6, cushioning material 7, and presser material 8 are combined as shown in FIG. 2, they are firmly fixed by fasteners 9 and fasteners 10.

However, the entrance/exit door having the above-described configuration has the following problems. First, since the joint 6 has a structure that is fixed to the top plate 5 by the attachment part 6c, a thick plate is used to prevent deformation even if an obstacle collides with the tip of the joint part 6a in the direction of the arrow. It is necessary to use thick material. As a result, a large step is created between the surface portion 5a of the top plate 5 and the marking portion 6a of the joint 6. Therefore, it would be dangerous if a part of the elevator user's body were to touch this stepped portion during the opening operation of the entrance/exit door 4. In addition, the side portion 5b of the top plate 5
Due to manufacturing errors in the width dimension of the width dimension and the width dimension of the side part 6b of the joint 6, a gap may occur between the surface part 5a of the top plate 5 and the marking part 6a of the joint 6.
During the opening operation, the fingernails of elevator users could get stuck in this gap, posing a risk of injury. Furthermore, since the joint 6 has a large plate thickness, bending cannot be performed if the width of the locating part 6a is made small, so the width is unavoidably set to the minimum width within the bendable range.
There was a problem that the appearance of the entrance/exit door became unsightly.

This idea solves the above problems and
The position of the joint can be easily adjusted in the thickness direction of the door with respect to the top plate of the door body, and the surface of the top plate and the surface of the joint marking part can be placed accurately on the same plane. To provide an elevator entrance/exit door that can stably press the end of a joint and the end of a joint without a gap.

That is, in the elevator entrance/exit door according to this invention, the front side part of the reinforcing plate is fixed to the back side of the front plate of the door body, and the mounting part bent at right angles from this front side part is made to protrude to the back side. Bend the back plate parallel to the top plate from the top, and form a step in the thickness direction of the door that is longer than the thickness of the top plate at the end of the joint part, and The stepped portion is brought into contact with the tip of the back surface of the reinforcing plate, and the head of the fastening bolt is engaged with the dovetail groove formed on the inner protruding part of the joint, so that the inner protruding part of the joint is connected to the mounting part of the reinforcing plate. Make the doors face each other with a gap left and right, and insert the screw part of the fastening bolt along the door left and right direction into the mounting hole provided in the mounting part of the reinforcing plate with a gap left in the radial direction,
The joints are fastened to the reinforcing plate so that the surface of the top plate and the surface of the joint markings are on the same plane.

The elevator entrance/exit door of this invention has a stepped portion longer than the thickness of the top plate of the door body formed in the thickness direction of the door at the end of the joint part, and the stepped portion is formed at the tip of the top plate. Contact the tip of the back side of the reinforcing plate with the front side fixed to the back side of the door and the back of the door body,
The screw part of the fastening bolt whose head was engaged with the dovetail groove of the joint, which runs along the left and right direction of the door, was inserted into the mounting hole provided in the mounting part of the reinforcing plate with a gap in the radial direction.
In this state, adjust the position of the joint in the thickness direction of the door with respect to the top plate, and then tighten the joint to the reinforcing plate by tightening the nut on the screw part, etc., so that the surface of the top plate and the surface of the joint are aligned. They can be easily arranged exactly on the same plane without creating a step difference between them. At this time, the head of the fastening bolt was engaged with the dovetail groove of the joint, so even if there is a slight error in the mounting hole of the reinforcing plate in the vertical direction of the door, the threaded part of the fastening bolt will fit into the mounting hole. It can be inserted and serves to facilitate the tightening of the joint to the reinforcing plate using the fastening bolt. In addition, this invention creates a gap between the inner protruding part of the joint and the mounting part of the reinforcing plate in the left-right direction of the door, so by tightening the fastening bolt to the mounting part, the protruding part of the joint can be moved to the top surface of the top plate. The large tightening force is applied to the front end of the back side of the reinforcing plate in two places, one on the front side and the other on the back side of the door, so it can be tightened strongly and in a stable state. The ends can be brought into pressure contact without creating any gaps.

An embodiment of this invention will be described below with reference to the drawings.

FIG. 3 is a sectional view of a main part showing an embodiment of an elevator entrance/exit door according to this invention, and the same parts as in FIGS. It has been omitted. Third
In the figure, 5e is the tip end surface of the top plate 5, 11 is a fastening bolt, which has a hexagonal head 11a and a threaded part 11b.
It is equipped with 12 is a washer with a hole in the center through which the threaded portion 11b of the fastening material 11 is inserted; 13 is a reinforcing plate; a mounting portion 13b bent at right angles from the front side portion 13a protrudes from the back side of the door; The back surface part 13c is bent at a right angle from the top and has a substantially Z-shaped cross section, and the front end surface 13d of the back surface section 13c is located in the same vertical plane as the front end surface 5e of the top plate 5, and is bonded or welded to the back surface of the front board 5. It is fixed by. Reference numeral 13e denotes a plurality of mounting holes provided in the mounting portion 13b, which are arranged at appropriate intervals over the entire length of the door in the height direction, and the diameter of the mounting holes 13e is equal to the diameter of the threaded portion 11b of the fastening bolt 11. It is set to a much longer dimension. 14 is a joint formed by extrusion of aluminum or plastic material, etc., and is made symmetrically with respect to the center line 14a is a tip surface, 14b
is a groove with a wide inner part opened in the tip surface 14a,
Reference numeral 14c is a marking section, which is set to a width that looks good when the entrance/exit door 4 is fully closed, that is, a width in the left and right direction, that is, a very small width. 14d is an intermediate portion, and 14e is a stepped portion formed at the end of the guide portion 14c, and the dimension of the stepped portion 14e in the door thickness direction is as follows:
It is set longer than the thickness dimension of the top plate 5. 1
4f is an inner protrusion, and is provided with a dovetail groove 14g. The width dimension of the inner part 14h of the dovetail groove 14g is formed to be almost the same as the opposite side dimension of the hexagonal head 11a of the fastening bolt 11, and the opening 14i The width dimension of is set to be approximately the same as the external dimension of the threaded portion 11b of the fastening member 11. Then, the joint 14 is the dovetail groove 1
Insert the head 11a of the fastening bolt 11 into the mounting hole 13e of the reinforcing plate 13 by inserting the head 11a of the fastening bolt 11 into the mounting hole 13e, and loosely insert the threaded part 11b of the fastening bolt 11 along the left-right direction of the door into the mounting hole 13e.
b using a washer 12 and a nut 10. In this case, the joint 14 is the step 14 on the front side of the door.
e comes into contact with the tip end surface 5e of the top plate 5, and the stepped portion 14e on the back side of the door comes into contact with the tip end surface 13d of the reinforcing plate 13, so that the attachment portion 14f of the joint 14 and the attachment portion 13b of the reinforcing plate 13 are connected to each other. The dimensions of each part are set so that there is a gap between them. In addition, the joint 14 and the entire fastening bolt 11 are inserted in the radial direction between the mounting hole 13e and the threaded part 11b of the fastening bolt 11 so that the surface of the top plate 5 and the surface of the locating part 14c of the joint 14 are on the same surface during installation. Adjust the position by moving within the gap between.

Reference numeral 15 denotes a cushioning material made of an elastic body such as rubber, which is composed of a contact part 15a and a fitting part 15b, and has the same length in the height direction of the joint 14 and the door, and has a fitting part 15a and a fitting part 15b. The portion 15b is fitted and held in the groove 14b of the joint 14, and the abutting portion 15a is held in the distal end surface 1 of the joint 14.
It protrudes from 4a in the left and right direction of the door.

In this embodiment, even if there is a manufacturing error in the top plate 5, the reinforcing plate 13, and the joint 14, fine adjustment is made so that the surface of the index portion 14c of the joint 14 is located on the same plane as the surface of the top plate 5. Furthermore, in order to prevent a gap from forming between the tip end surface 5e of the top plate 5 and the stepped portion 14e of the joint 14, these are pressed together so that the attachment reaction force of the joint 14 is received at this portion.

Then, the surface of the top plate 5 and the marking part 14 of the joint 14
c Since the surfaces are arranged on the same plane and there is no gap in this area, there is no risk of injury even if the entrance/exit door 4 opens with a part of the elevator user's body or fingernails in contact with it. It can be used as a safe entrance/exit door. In addition, the structure is such that a stepped portion 14e is provided at the end of the indexing portion 14c of the joint 14, with which the tip end surface 5e of the top plate 5 comes into contact, and since the joint 14 is made of an extrusion molded product, the width of the indexing portion 14c can be made narrower. This makes it possible to improve the appearance of the entrance/exit door 4 when it is fully closed. Further, the joint 14 is fixed to the door body of the entrance/exit door 4 using a fastening bolt 11 whose threaded portion 11b is inserted into the mounting hole 13e of the reinforcing member 13, but the diameter of the mounting hole 13e is larger than the thread of the fastening bolt 11. The part 11b is longer than the diameter, and the fastening bolt 1
1 can be moved freely in the door height direction of the joint 14 within the dovetail groove 14g of the joint 14, so the mounting hole 13e
The manufacturing cost can be reduced because the position and spacing of the parts do not require precision, and the manufacturing precision of the component parts is not required.

As explained above, the elevator entrance door according to this invention has a stepped portion longer than the thickness of the top plate of the door body formed in the thickness direction of the door at the end of the joint part. Attach the reinforcing plate by attaching the threaded part of the fastening bolt along the left and right direction of the door, with the head engaged with the dovetail groove of the joint. A gap was provided in the radial direction through the mounting hole provided in the joint, and a gap was created in the left and right direction of the door between the inner protruding part of the joint and the mounting part of the reinforcing plate, and the joint was tightened to the reinforcing plate with a fastening bolt. Therefore, it is easy to place the surface of the top plate and the surface of the joint spot on the same plane accurately, and the joint can be strongly tightened to the attachment part of the reinforcing plate using the tightening force of the fastening bolt. At the same time, it is possible to stably press the joint markings against the front end surface of the top plate and the back end surface of the reinforcing plate, and there is no gap between the joint markings and the front end surface of the top plate. This prevents the elevator user from being injured even if the entrance/exit door opens and closes while a part of the elevator user's body is in contact with the joint between the surface of the top board and the surface of the joint. effective.

[Brief explanation of the drawing]

Fig. 1 is a front view showing a conventional elevator entrance/exit door, Fig. 2 is a cross-sectional view taken along the line - - of Fig. 1, and Fig. 3 is a horizontal cross-section of the main part showing an embodiment of the elevator entrance/exit door according to this invention. It is a diagram. 3... Entrance/exit, 4,4'... Entrance/exit door, 5...
Top plate, 5e... Tip surface, 11... Fastening bolt, 1
1a...Head, 11b...Screw part, 13...Reinforcement plate, 13a...Surface side part, 13b...Mounting part, 1
3c...Back surface part, 13d...Tip surface, 13e...
Mounting hole, 14... Joint, 14c... Marking part, 14
e...Stepped portion, 14f...Inner protrusion, 14g...
Dovetail groove, 15...buffer material. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims (1)

[Scope of utility model registration request] In an elevator entrance/exit door that has a joint installed at the tip of the door body with a cushioning material that protrudes from the tip in the left-right direction of the door, the front side of the reinforcing plate is fixed to the back side of the top plate of the door body, and this A mounting part bent at right angles from the front side protrudes to the back side, and from this mounting part, the back board is bent parallel to the top board, and a piece with a dimension longer than the thickness of the top board is placed at the end of the joint spot. A step is formed in the thickness direction of the door, and the step is brought into contact with the top end of the top plate and the top end of the back side of the reinforcing plate, and the head of the fastening bolt is inserted into the dovetail groove formed in the inner protrusion of the joint. The inner protruding part of the joint faces the mounting part of the reinforcing plate with a gap in the left-right direction of the door, and the threaded part of the fastening bolt that runs along the left-right direction of the door is provided in the mounting part of the reinforcing plate. An elevator entrance/exit door characterized in that the door is inserted into a hole with a gap in the radial direction, and the joint is fastened to a reinforcing plate so that the surface of the top plate and the surface of the joint marking part are arranged on the same plane.