JPS61207775A - Kick-out apparatus of fire-proof door - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION A6 Object of the Invention [Field of Industrial Application] The present invention relates to a kicking device for opening fire doors and other doors.

[Conventional technology]

For example, the above-mentioned fire door may not be opened or closed for a long period of time, or the door and door frame may be deformed or rusted.
Or, when a fire breaks out, the indoor pressure may become negative, making it impossible to open manually, which poses a safety problem.

[Problem that the invention seeks to solve]

Therefore, as a result of studies in view of the above-mentioned problems, the present invention provides a new kicking device for fireproof doors, etc., which kicks out the door by operating a release means such as a handle, thereby opening a door that is difficult to open easily. The purpose is to make it possible.

Configuration of the Invention [Means for Solving Problems] That is, the present invention provides a door kicking means that is pivotally installed in a housing, projects from an opening of the housing, and kicks the door in the opening direction, and the door kicking means described above. a kick-out interlocking means attached at one end side to the door kicking means so as to be able to be kicked out in the direction of opening the door; and a kick-out interlocking means, each of which is pivotally mounted on the housing, and is actuated by a spring force. a kicking driving means elastically biased in the kicking direction, and a stopper means for detachably holding the kicking interlocking means in a set position against the kicking force of the kicking driving means; The above-mentioned problem was solved by configuring the stopper means with a release means.

〔Example〕

Hereinafter, one embodiment of the present invention will be described in detail based on the drawings. As shown in FIGS. 1 to 4, the kicking device A includes a housing 1 and a door kicking means 2 disposed inside the housing 1. , a kick-out interlocking means 3 , a kick-out drive means 4 , a stopper means 5 , and a release means 6 .

The housing 1 is formed into an oblong box shape with an opening 1a provided on one longitudinal side thereof.

Further, the kicking means 2 includes three arms 2b.

Each end of the four-section link mechanism 2a, which is formed by rotatably connecting the four-section link mechanisms 2c and 2d in series in the longitudinal direction with pivots 7 and 8, is rotatably pivoted to the housing 1 through support shafts 9 and 10, respectively. and connect one pivot point a to the opening 1a of the housing 1.
The door 11 is formed so as to protrude outward from the pivot portion aK so as to kick the door 11 in the opening direction.

Now, so that the pivot portion a rotates and slides with the door 11,
It is preferable that the roller 12 be pivotally attached to the pivot portion a using the pivot shaft 8.

Further, the kick-out interlocking means 3 is composed of one link 3a, and the one end 3b of the link 3a is connected to the pivot point of the link mechanism 2a so that the one end 3b of the link 3a serves as a rotational fulcrum. At the same time, the substantially central portion is pivotally connected to the pivot portion C of the arm 2bt2c in the link mechanism 2a by a pivot shaft 7 together with the two arms 2b and 2C, so that it is not connected so as to be interlocked with the door kicking means 2. It is formed by

Further, the other end 3c of the link 3a has a notch formed therein with a locking portion 3d, and an inclined surface 3e which can be locked with the stopper means 5 by a pushing operation.

In addition, the above-mentioned kick-out drive means 4 include a plurality of pieces (three pieces in the illustrated example).
The kick-out bins 4b, 4C, and 4d are disposed laterally and project from each other at appropriate intervals. One corner 4e of a planar triangular turn plate 4a is rotatable on the housing 1 by a support shaft 13. , and a spring hook 4f provided at the other corner.
The initial kicking force for opening the door is applied in the counterclockwise direction in FIGS. 1, 3, and 4 by the tension springs 4g, each of which is tensioned by hooking its end to the spring hook 1b of the housing 1. Seshime,
The kick-out interlocking means 3, that is, the other end 3C side of the link 3a, is formed to kick out the other end 3C side of the link 3a in the clockwise direction in each of the above figures through the kick-out pins 4b, 4C*4d, and the link 3a Spring hook 3e provided on one end 3b of
Tension springs 4h, each end of which is hooked to a spring hook LC provided on the housing 1 and tensioned at an angle, are formed to bias the link 3a with a kicking force in the latter half of opening the door.

Furthermore, the end portion 5b of the stopper 51, which has five stopper means in the shape of a flat T-shape, is turned in the following manner:
・A compression spring 5 is rotatably supported on the housing 1 by a support shaft 13 together with 42, and the other end 5c and the spring receiver 1d provided in the housing 1 are respectively hooked to the compression spring 5.
By e, a return force is applied in the clockwise direction in the gt diagram, and thereby the locking portion 3d of the link 3a is removably engaged with the pin 5d protruding near the bent portion of the stopper 5a. the kick-out interlocking means 3 to the first position.
It is formed so that it can be held in the set position shown in FIGS.

Here, the locking portion 3d of the link 3a moves the end of the link 3a along a planar path so that it is locked and held by the pin 5d of the stopper means 5 against the kicking force of the kicking drive means 4. It is provided with a notch in the shape.

The release means 6 may be provided so that the stopper 5a can be rotated counterclockwise in FIG. 1 against the elastic force of the compression spring 5e. One end of the wire 6a passing through the end wall le of the housing 1 is fixed to the other end 5CK of the stopper 5a, and the other end of the wire 6a is connected to the handle 6bK attached to the wall as shown in FIG. It is formed.

Incidentally, in FIG. 2, reference numerals 14 and 14 indicate brackets fixed to the housing 1.

In the above structure, when attaching this to the door 11, as shown in FIGS. 5 to 7, the door attachment frame 15vc is hinged to the upper frame 15a of the door attachment frame 15 so that it can be opened and closed. The brackets 14, 14 of the housing 1 are fixedly attached to the open end side of the door 11 with screws or the like, and the opening 1a of the housing 1 is arranged to face the door 11.

Further, the handle 6b of the release means 6 is placed on a wall or the like at a position where it can be easily operated, as illustrated in FIG.

Thus, in the kicker device A, the kicker drive means 4, the kicker interlocking means 3, and the door kicker 2 are held in the set state shown in FIGS. 1 and 2 by the stopper means 5 in order to maintain the door closed state. has been done.

In order to open the door 1, the release means 6 in the above set state,
That is, by rotating the handle 6b and pulling the wire 6b, the stopper 5a of the stopper means 5 moves against the elastic force of the compression spring 5e, as shown by the dotted line in FIG.
3 in the counterclockwise direction, and its bin 5d
When removed from the locking portion 3d of the link 3a, the kick-out drive means 4
The turn plate 4a rotates counterclockwise about the support shaft 13 as shown by the two-dot broken line in the figure due to the tension of the tension spring 4g.

As a result, the displacement kick-out pins 4b, 4C, and 4d sequentially kick out the link 3a of the kick-out interlocking means 3 outward as shown by the two-dot broken line in the figure. The link mechanism 2a of the door kicking means 2, which is pivotally connected to the link 3a, rotates clockwise around the support shafts 9 and 10 at each end. rotated and the opening 1 of the housing 1
Since it protrudes from a and kicks the door 11, due to this,
The door 11 is pushed open in the opening direction by the roller 12 of the pivot portion a.

At this time, one tension spring 4g of the kicking drive means 4 acts on the link 3a via the turn play 4a as an initial kicking force for opening the door, and then the other tension spring 4h acts on the rick 3a to open the door. It acts as a late kicking force.

In this way, the door 11 is opened.

Next, hold the door in the closed state (when resetting the device as shown in Figure 1, close the door 11 with a force that resists the spring force. By being pushed into the housing l, each of the above-mentioned means 2, 3.
4 operates in the opposite manner to that described above, and the locking portion 3d of the link 3a is locked by the stopper means 4, thereby being held in the set state.

The kick-out drive means 4 is preset and formed to have a spring force corresponding to the size, weight, etc. of the door 11.

〔Effect of the invention〕

As explained above, the presence of the kick-out of the fire door etc. of the present invention is 1. If a door, etc. becomes difficult or impossible to open manually due to negative pressure indoors during a fire or other causes, stopper means 5 will be used. Kick-out drive means 4 which biases the kick output by the spring by operating the release means 6 interlocked with the kick-off drive means 4
By activating the door kicking means 2 via the kicking interlocking means 3 and kicking the door 11 in the opening direction, the door 11 can be pushed open. The security effect is enormous.

Furthermore, since the springs 4g and 4h are used as the driving source for the kicker drive means 4, the door can be opened without any problem even in the event of a fire or power outage, and since there are almost no failure-prone elements in the structure, the door can be opened easily. The door can be made highly reliable.

[Brief explanation of drawings]

Fig. 1 is a plan view of an embodiment of a kicking device for a fire door or the like according to the present invention when it is not in operation, Fig. 2 is a front view of the same embodiment when it is not in operation, and Fig. 3 is an embodiment of the same embodiment. FIG. 4 is a plan view of the example when the door opening operation starts, FIG. 4 is a plan view of the same example during the door opening operation, FIG.
7 are sectional views taken along the line Vl-Vl and the line ■-■ in FIG. 5. 1... Housing 1a... Opening 2...
Door kicking means 3...Kicking interlocking means 4...Kicking drive means 5...Stopper means 6...Release means 11...Door patent applicant Nippon Kentetsu Co., Ltd. President Nippon Minami Figure 5 ■ Figure 6 Figure 7 Procedures Amendment 1. Display of the case 1985 Patent Application No. 46960 2゜ Name of the invention Kick-out device for fire doors etc. 3 Person making the amendment Relationship to the case Patent applicant (representative applicant) Address 762 Mezaki-cho, Fuchu City, Hiroshima Prefecture Address voluntary amendment 5, subject of amendment As shown in the attached sheet, the contents of the amendment + 1 + the "Detailed Description of the Invention" column in the specification are amended as follows. In the second line of page 8, the word ``pull'' is corrected to 1-pull. (2) In the drawings, the symbol rl aJ and this leader line are added to Fig. 1, as is not shown in the attached drawing (copy), and the leader line with the symbol ``ld'' is extended. Figure 2 remains unchanged.

Claims (1)

[Claims] a door kicking means pivotally installed in the housing, protruding from the opening of the housing and kicking the door in the opening direction; and one end side associated with the door kicking means such that the door kicking means can be kicked out in the opening direction. a kick-out interlocking means installed in a manner that is offset;
A kick-out driving means is pivotally mounted on the housing and elastically biases the kick-out interlocking means in the kicking direction by a spring force, and the kick-out interlocking means is releasably engaged and driven; A kicking device for a fire door, etc., comprising a stopper means for holding the set position against the kicking force of the means, and a release means for the stopper means.