JPS6320786Y2 - - 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 their tips, that is, at the side edges in the left and right direction, thereby improving the appearance and beauty of the tips.

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 opens and closes by being guided by a guide groove (not shown) provided in a part of floor 1, and opens and closes in opposite directions from the center to the left and right. It opens and closes. 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 rear portion 5c. Reference numeral 5d denotes a plurality of mounting holes provided in the rear portion 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 is composed of a guide portion 6a, a side portion 6b, and a mounting portion 6c, and is attached to the entrance/exit door 4 as shown in FIG. It is arranged so as to cover the entire length of the tip portion 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. 7 is a cushioning material made of an elastic body such as rubber;
Consisting of a contact part 7a and a clamping part 7b,
The joint 6 and the door are formed to have the same length in the height direction. 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, and has mounting holes 5d and 6.
It is inserted into d.7c and 8a. Numeral 10 is a fastener made of a nut, which is tightened from the side opposite to the head of the fastener 9. After the top plate 5, joint 6, cushioning material 7, and presser plate 8 are assembled 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 various problems described below. 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. For this reason, the entrance/exit door 4
It would be dangerous if any part of the elevator user's body touched this step during the opening operation. In addition, due to manufacturing errors in the width dimension of the side part 5b of the top plate 5 and the width dimension of the side part 6b of the joint 6, the surface part 5a of the top plate 5 and the joint 6
A gap may be formed between the guide portions 6a of the elevator, and when the entrance/exit door 4 is opened, the fingernails of the elevator users' hands may get stuck in this gap and cause 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. There was a problem that the appearance when fully closed was poor.

This idea solves the above problems,
To provide an elevator entrance door capable of easily adjusting the position of a joint in the thickness direction with respect to the surface plate of a door body, accurately arranging the surface of the surface plate and the visible part surface of the joint on the same plane, and easily pressing the tip surface of the surface plate and the end part of the visible part of the joint with no gap between them.

In other words, the elevator entrance door of this invention has studs welded to the back of the door body, mounting holes on the front side of the reinforcing plate are fitted onto the studs with a radial gap, nuts are tightened onto the parts of the front side of the studs that protrude towards the back side, a mounting part bent at a right angle from the front side is made to protrude towards the back side, a step of dimensions larger than the thickness of the face plate is formed in the direction of the door thickness at the end of the visible part of the joint, the step is abutted against the tip surface of the face plate, the head of a fastening bolt is engaged with a dovetail groove formed in the inward protruding part of the joint, the threaded part of the fastening bolt running along the left-right direction of the door is inserted into a mounting hole on the mounting part of the reinforcing plate with a radial gap, and the joint is fastened to the reinforcing plate by the fastening bolt, arranging the surface of the face plate and the visible surface of the joint 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. The threaded part of the fastening bolt, which is in contact with the surface and whose head is engaged with the dovetail groove of the joint, is inserted along the left and right direction of the door into the mounting hole provided in the mounting part of the reinforcing plate, leaving a gap in the radial direction. In this state, adjust the position of the door joint with respect to the top plate, and then tighten the joint to the reinforcing plate by tightening the nut on the threaded part, etc., so that the surface of the top plate and the surface of the joint spot,
They can be easily arranged exactly on the same plane so that there is no difference in level 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 can be inserted into the mounting hole. It can be inserted into the reinforcing plate to facilitate tightening of the joint to the reinforcing plate using the fastening bolt.

In addition, the studs welded to the back side of the top plate of this invention were inserted into the mounting holes provided on the front side of the reinforcing plate with a gap in the radial direction, and the reinforcing plate was tightened to the top plate using the studs and nuts. Therefore, with the stud inserted into the mounting hole of the reinforcing plate, adjust the position of the reinforcing plate in the left and right direction of the door so that the tip of the top plate is pressed against the end of the joint without any gaps. This can be done in a timely manner independently of the position adjustment in the thickness direction of the door, and the gap between the front end of the top plate and the joint end of the joint can be eliminated with good workability.

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 example of an elevator entrance/exit door according to this invention, and the same parts as in FIGS. 1 and 2 are designated by the same reference numerals, and detailed explanation thereof will be omitted. It has been done. In Figure 3, 5f is a stud welded and fixed at right angles to the back surface of the top plate 5 at appropriate intervals over the entire length in the door height direction, 5g is a washer with a hole in the center through which the stud 5f is inserted, and 5h 16 is a reinforcing plate, which has an L-shaped cross section with a mounting part 16b bent at right angles from the front side part 16a protruding to the back side of the door, and has the same length in the door height direction as the top plate 5. have. 16c are mounting holes provided at appropriate intervals over the entire length of the mounting portion 16b in the door height direction;
These diameters are set to be considerably longer than the diameter of the threaded portion 11b of the fastening bolt 11, which will be described later. 16d has studs 5 on the front side 16a.
The mounting holes are provided at the same spacing as the studs 5f, and their diameters are set to be considerably longer than the diameter of the studs 5f. The reinforcing plate 16 has a front side part 16a supported on the back side of the front plate 5, a mounting hole 16d is loosely inserted into the stud 5f, and the position of the reinforcing plate 16 is adjusted in the left and right direction of the door. By tightening the nut 5h through the washer 5g on the portion protruding to the back surface side, no gap is created between the tip end surface of the top plate 5 and the stepped portion 14e of the joint 14, which will be described later. That is, 5e is the front end surface of the top plate 5, and 11 is a fastening bolt, which has a hexagonal head 11a and a threaded portion 11b. 12 is a washer with a hole in the center through which the threaded portion 11b of the fastening material 11 is inserted; 14 is a joint formed by extruding aluminum or plastic material, etc., and is made symmetrically with respect to the center line X in the front and back direction of the door. and
It has the same length in the door height direction as the top plate 5 and the reinforcing plate 16. 14a is a distal end surface, 14b is a wide groove at the deep end opened in the distal end surface 14a, and 14c
is a marking part, which is set to a width that looks good when the entrance/exit door 4 is fully closed, that is, a horizontal dimension, that is, a very small width. 14d is the middle part,
14e is a stepped portion formed at the end of the indexing portion 14c, and the dimension of the stepped portion 14e in the door thickness direction is set to be longer than the thickness of the top plate 5. Reference numeral 14f denotes an inner protrusion, which is provided with a dovetail groove 14g, the width of the inner part 14h of the dovetail groove 14g being approximately the same as the width of the opposite side of the hexagonal head 11a of the fastening bolt 11, and the opening 14i. The width of the fastening bolt is 11
The external dimensions of the threaded portion 11b are set to be substantially the same. Then, the joint 14 is formed by inserting the head 11a of the fastening bolt 11 into the dovetail groove 14g.
The threaded part 11b along the left and right direction of the door No. 1 is attached to the mounting hole 16.
c, loosely insert the washer 1 into the mounting portion 16b of the reinforcing plate 16.
2 and nuts 10. In this case, the joint 14 has a stepped portion 14e that is connected to the top surface 5e of the top plate 5.
The dimensions of each part are set so that it comes into contact with the
In addition, the entire joint 14 and fastening bolt 11 are inserted into the mounting hole 16c of the reinforcing plate 16 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.
The position is adjusted by moving within the range of the radial gap between the threaded portion 11b of the fastening bolt 11 and the threaded portion 11b of the fastening bolt 11. 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. 15b is fitted and held in the groove 14b of the joint 14,
The contact portion 15a protrudes from the tip surface 14a of the joint 14 in the left-right direction of the door.

In this embodiment, even if there is a manufacturing error in the top plate 5, the reinforcing plate 16, and the joint 14, fine adjustments are made so that the surface of the index portion 14c of the joint 14 is flush with the surface of the top plate 5. Moreover, no gap is created between the tip end surface 5e of the top plate 5 and the stepped portion 14e of the joint 14.

Then, the surface of the top plate 5 and the marking part 14 of the joint 14
c The surfaces are arranged on the same plane and there are no gaps in this area, so there is no risk of injury even if the entrance door 4 opens with a part of the elevator user's body or fingernails in contact with it. It can be used as an 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. Furthermore, 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 a mounting hole 16c of the reinforcing plate 16, but the diameter of the mounting hole 16c is larger than the screw of the fastening material 11. be larger than the diameter of the portion 11b, 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 16c
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. Furthermore, since the number of component parts is reduced, the overall manufacturing cost can be lowered.

In addition, in this embodiment, the structure of the reinforcing plate 16 is simplified, and at the same time, the top plate 5 of the reinforcing plate 16 is
This eliminates the need for positioning work, and it can be manufactured at a lower cost.

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. is in contact with the top surface of the top plate, and the head of the fastening bolt is engaged with the dovetail groove of the joint.The screw part of the fastening bolt that runs along the left and right direction of the door is inserted into the mounting hole provided in the mounting part of the reinforcing plate with a gap in the radial direction. I installed and inserted the joint, and tightened the joint to the reinforcing plate with the fastening bolt.
It is easy to place the surface of the top plate and the surface of the joint markings on the same plane, and the studs welded to the back of the top plate can be placed radially into the mounting holes provided on the side of the front surface of the reinforcing plate. After inserting the reinforcing plate with a gap, and tightening the reinforcing plate to the top plate using studs and nuts, the task is to press the end of the joint spot and the top plate against the tip surface and eliminate the gap between these joints. This has the effect that there is no risk of injury even when the entrance/exit door is opened/closed with a part of the elevator user's body touching the joint between the surface of the top board and the surface of the joint marking part.

[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, 5f... Stud, 5h
... Nut, 11 ... Fastening bolt, 11a ... Head, 11b ... Thread part, 14 ... Joint, 14c ...
...Find part, 14f...Step part, 14g...Dovetail groove,
15...Buffer material, 16...Reinforcement plate, 16a...Surface side part, 16b...Mounting part, 16c, 16d...
Mounting holes. 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 at the tip of the door body with a cushioning material attached to it that protrudes from the tip in the left-right direction of the door, a stud is welded and fixed to the back of the door body, and a stud is attached to the front side of the reinforcing plate to the stud. Fit the provided mounting hole with a gap in the radial direction, tighten the nut to the part of the stud that protrudes from the front side to the back side, and make the mounting part that is bent at right angles from the front side protrude to the back side. A stepped portion with a dimension larger than the thickness of the above-mentioned top plate is formed at the end of the marking part in the thickness direction of the door, and the stepped portion is brought into contact with the tip end surface of the above-mentioned top plate, and is formed on the inner protrusion of the joint. Engage the head of the fastening bolt with the dovetail groove, insert the threaded part of the fastening bolt along the left and right direction of the door into the mounting hole provided in the mounting part of the reinforcing plate with a gap in the radial direction, and then tighten the fastening bolt. An elevator entrance/exit door characterized in that the surface of the top plate and the surface of the joint marking part are arranged on the same plane by tightening the joint to a reinforcing plate.