JPH0721800Y2 - Door frame for round automatic doors - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a round automatic door having an arc shape in a plan view, which is installed in an entrance of a building or the like, and particularly to a door frame thereof.

(Prior Art) A door frame used for a round automatic door is generally formed in a gate shape by a straight left and right vertical frame and a horizontally elongated box-shaped upper frame in a plan view. A guide rail for driving the suspension door, which is opened and closed, to open and close the hanging door having a rounded shape in a plan view, which is suspended from the upper frame, a traveling drive device for driving the suspension door, and the like are attached via a bracket.

By the way, conventionally, the upper frame of this type of door frame has four steel angle members (angle steel) A, B, C, D vertically and horizontally bent as shown in FIG. By arranging them in parallel at a required interval and mounting and welding a number of steel connecting bars E ... between these angle members A to D, a horizontally long box-shaped frame is formed, and its upper surface side and front surface are formed. Side and bottom surface side are covered with thin steel plate F, G, which is rounded in a plan view, with screws or the like. Inside, a plurality of brackets H are provided between the angle members A, B on the front side upper and lower parts. Are attached by welding at required intervals, and the traveling guide rail I, the traveling drive device J, and the like are attached through these brackets H, and the rear side of the frame is made of a thin steel plate having a rounded shape in plan view. The cover K is attached. The guide rail I
The traveling wheel M pivotally supported on the upper part of the hanger L is engaged with, and the suspension door N is suspended on the lower part of the hanger L.

(Problems to be Solved by the Invention) As described above, in the conventional door frame, since the number of members of the members constituting the upper frame is large and the members are assembled by welding, the assembly work is very difficult. There is a problem that it takes a lot of time and that most of the members are made of steel, and the weight is considerably increased.

The present invention is intended to solve such a problem.

(Means for Solving the Problems) The structure of the present invention for achieving the above object will be described with reference to FIGS. 1 to 3 corresponding to the embodiments.
The left and right vertical frames 2, 2 and the upper frame 3 having a horizontally elongated box shape in a plan view are formed in a gate shape, and the upper frame 3 has a hanging door 6 in a plan view which is hung from the upper frame 3. Rails for driving guides
31, a door frame 1 for a round automatic door, which is equipped with a bracket 27 for mounting the traveling drive device 34, etc.
In the above, the upper frame 3 is composed of at least the front frame member 8 and the upper and lower frame members 9 and 10, respectively, and the front frame member 8 is made of a single aluminum extruded material bent in a round shape in plan view, Each of the upper and lower frame members 9 and 10 is characterized by being divided and formed by at least two front and rear aluminum extruded mold members 14 to 16 and 19 to 21 which are bent in a rounded shape in a plan view.

(Embodiment) An embodiment will be described with reference to the drawings. FIGS. 1 and 2 show a round automatic door installed at an entrance of a building. A door frame 1 includes left and right vertical frames. 2, 2 and a horizontally elongated box-shaped upper frame 3 that is rounded in a plan view and is formed in a gate shape. On the both sides of the central portion between the left and right vertical frames 2, 2, an intermediate portion is provided between the upper frame 3 and the floor surface S. Stands 4, 4 are erected. The door frame 1 is formed with an entrance / exit portion 5 between the two intermediate uprights 4, 4, and a pair of plan view round hanging doors 6 for opening / closing the entrance / exit portion 5 are provided.
6 is hung from the upper frame 3, and a fixed glass shoji 7 having a rounded shape in a plan view is arranged between each of the intermediate cubes 4 and each of the vertical frames 2.

As shown in FIG. 3, the upper frame 3 is composed of a front frame member 8 facing the outside of the room, upper and lower frame members 9 and 10, and a rear frame member 11.

The front frame member 8 is formed by bending a substantially flat plate-shaped aluminum extruded shape member in a plan view radius shape, that is, a single aluminum extruded shape member bent in a plan view radius shape.
Hollow frame part pieces 12, 12 each having a rectangular cross section are provided at both upper and lower end portions of the inner surface over the entire length, and bolt engagements having a substantially cross section at a position close to each hollow frame part piece 12 are engaged. groove
13 is provided in parallel with the hollow frame portion piece 12.

The upper frame member 9 is formed by dividing into three mold members, that is, two H-shaped aluminum extruded members 14 and 15 having a horizontal cross-section and one hollow square tubular aluminum extruded mold member 16. Is curved in a plan view, and has a cross section H
The two V-shaped mold members 14 and 15 are integrally connected by engaging their engaging step portions with each other and fixing them with screws 40, and the hollow square tubular mold member 16 is one H-shaped mold member. The H-shaped member 14 is connected integrally with a screw 17 screwed from the 15 side, and the other H-shaped member 14 engages the engaging step portions of the upper hollow frame portion piece 12 of the front frame member 8 with each other. Screw
18 are connected together.

The lower frame member 10 is bent into a rounded shape in a plan view, and has an H-shaped aluminum extruded material 19 having a lateral cross section on the outdoor side, an I-shaped aluminum extruded material 20 having an I-shaped cross section on the indoor side, and a hollow rectangular tubular aluminum extruded material. The outer mold member 19 is integrally connected to the lower hollow frame piece 12 of the front frame member 8 by screws 22 in a state where the engaging step portions are engaged with each other. The inner mold members 20 and 21 are integrally connected by engaging the engagement step portions with each other and fixing them with screws 23, and are fixed to the rear frame member 11, and these outer mold members 19 An opening groove 24 is provided over the entire length between the inner mold member 20 and the indoor mold member 21. Further, the rear frame member 11 is composed of a plurality of aluminum plate connecting bars 25 screwed over the mold member 16 of the upper frame member 9 and the mold member 21 of the lower frame member 10.
And a cover 26 made of one extruded aluminum-shaped aluminum material in plan view, which is screwed to the above-mentioned molding materials 16 and 21 so as to cover the back surface of the upper frame 3.

A plurality of steel plate brackets 27 are mounted in the upper frame 3 having the above-mentioned structure. When mounting the brackets 27, as shown in FIGS. Mounting pieces 28 that are approximately Z-shaped at both ends
Has one end fixed by welding, a bolt hole (not shown) is provided at the other end of the mounting piece 28, and upper and lower bolt engagements provided on the inner surface of the front frame member 8 of the upper frame 3 are engaged. Heads 29a of a required number of bolts 29 are slidably engaged with the groove 13. Then, the screw shaft portion 29b of the bolt 29 protruding from each of the upper and lower bolt engaging grooves 13 is inserted into the bolt hole of each mounting portion piece 28, and the nut 30 with a seat is lightly screwed to the tip portion thereof to temporarily Stop, and in this temporarily fixed state, the bracket
27 is appropriately moved along the bolt engagement groove 13, and the nut 30 is tightened at a required position to be fixed at that position.

The bracket 27 includes a rail for traveling guide of the hanging door 6.
A support piece 32 for supporting the 31 at several points is bolted, and a part of the traveling drive device 34 is appropriately attached by bolts. Then, a plurality of hangers 35 are provided on the rail 31.
Traveling wheels 36 pivotally supported on the hanger 35 are movably engaged, and the hanging doors 6 at the lower ends of these hangers 35 are attached.
The lower end of the hanger 35 is located in the opening groove 24 of the lower frame member 10.

Each hanging door 6 is made by attaching edge members 6b and 6c to both upper and lower ends of a thick plate glass 6a having a round shape in a plan view. The upper edge member 6b is attached to the hanger 35, and the lower edge member 6c is attached. A guide piece 37 is projectingly provided on the lower surface, and the guide piece 37 is slidably engaged with a guide groove 38 provided on the floor surface S as shown in FIG.

When the door frame 1 is attached to the building frame, the upper frame 3 is screwed to a plurality of anchor metal parts 39 embedded in the upper wall part R of the frame as shown in FIG. It is like this.

(Effect of the Invention) According to the door frame for a round automatic door of the present invention, the front frame member of the upper frame is made of a single aluminum extruded member bent in a plan view rounded shape, and the upper and lower frame members are flat. Since it is composed of at least two front and rear aluminum extruded members bent in a rounded shape in a view, at least two top and bottom rounded steel angle members in plan view, and a large number of steel connecting bars connected between the angle members, A large number of steel bars attached to the upper and lower angle members so as to extend in the front-rear direction, and these angle members,
Compared with a conventional upper frame consisting of a steel plate outer cover plate that is attached to a frame body formed by a bar or the like, the number of members of the upper frame is small, and the assembling work can be performed easily and easily. There is an effect that the weight can be reduced. Particularly, in this case, comparing the front frame member of the upper frame of the present invention with the conventional frame member corresponding to this front frame member, the front frame member of the present invention is formed by a single member made of an aluminum extrusion mold material. On the other hand, the conventional corresponding frame member is
The upper frame of the present invention is composed of three types of steel members, that is, two upper and lower angle members, a large number of bars connected between the angle members, and an outer cover plate that covers them. It is obvious that the number of members is smaller than that of the conventional upper frame, so that the assembling work is easy and easy, and the weight can be reduced.

Further, since the upper and lower frame members of the upper frame are divided and formed by at least two front and rear (indoor side and outdoor side) aluminum extruded mold members that are bent in a plan view, each upper and lower frame member is a single mold member. Compared with the frame member made of, the bending of the mold material in a plan view is facilitated by the bender, and the strain deformation of the mold material during the bending work is reduced. Further, since the distortion of the mold material during bending is small in this way, the appearance of the upper and lower frame members is good, and the mounting accuracy is good when the upper and lower frame members are mounted on the front frame member. The upper and lower frame members can be accurately attached to predetermined positions on the front frame member.

[Brief description of drawings]

FIG. 1 is a front view of the round automatic door according to an embodiment of the present invention seen from the outside of the room, FIG. 2 is a sectional view taken along line II-II of FIG. 1, and FIG. 3 is III- of FIG. III line enlarged sectional view, FIG. 4 is an IV-IV line enlarged sectional view of FIG. 1, FIG. 5 is a VV line enlarged sectional view of FIG. 1, and FIG. 6 is an enlarged view of a VI portion of FIG. FIG. 7 is a perspective view showing a mounting state of the bracket, and FIG. 8 is a sectional view similar to FIG. 3 showing a conventional example. 1 …… door frame, 2 …… left and right vertical frames, 3 …… upper frame, 6 ……
Hanging door, 8 ... Front frame member, 9 ... Upper frame member, 10 ...
Lower frame member, 14,15,16,19,20,21 …… Aluminum extruded material, 2
7 …… Bracket, 28 …… Mounting piece.

Claims (1)

[Scope of utility model registration request] Claims: 1. A left and right vertical frame and a horizontally-shaped box-shaped upper frame that is rounded in plan view are formed in a gate shape, and a plan-view rounded hanging door that hangs down from the upper frame runs in the upper frame. In a door frame for a round automatic door, which is equipped with a bracket for mounting a guide rail, a traveling drive device, etc., the upper frame is composed of at least a front frame member and an upper and lower frame member, respectively. At the same time, the front frame member is made of a single aluminum extruded shape member bent in a plan view radius shape, and the upper and lower frame members are respectively divided and formed by at least two front and rear aluminum extruded shape members bent in a plan view radius shape. A door frame for a round automatic door that is characterized by: