JP2878263B1 - Overdoor device with movable strut - Google Patents

Abstract

Abstract: PROBLEM TO BE SOLVED: To reliably fix and support a movable column regardless of vertical movement of a beam portion of a building caused by wind pressure, snowfall, etc., and to easily operate fixing and releasing of the movable column. Provide a door device. An upper set pin and a lower set pin are provided.
As an operation mechanism for the operation lever 6, an operation lever 9 that swings in the vertical direction is provided on the movable column 1, and an upper set pin 17 is provided at one end of the operation lever 9 with respect to the swing center of the operation lever 9. The lower set pin 26 is connected to the other end side, and the length from the swing center of the operation lever 9 to the connection point is set so that the lower set pin 26 is larger than the upper set pin 17. The lower set pin 26 is designed to have a larger amount of penetration into the set holes 23 and 32 when the movable column is set than the upper set pin 17.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of an overdoor device having a movable column.

[0002]

BACKGROUND OF THE INVENTION Problems to be solved
A bendable door panel is supported on a support post located at both ends of the door opening and a rail extending upward or rearward thereof, and a large opening is obtained by flipping the door panel upward along the rail. ,
There is an excellent feature that the door panel does not get in the way when the door is open.

According to this overdoor apparatus, a door having a large opening width (span) of about 10 meters can be realized by itself, but a plurality of doors having a large opening width of several tens of meters are required. There is also a movable column type in which doors are connected in a lateral direction, and these adjacent portions are supported by movable columns.

In this case, an intermediate support located between the plurality of door panels performs the original function of supporting and guiding the door panel when the door is closed, but when the door is fully opened, the restraint between the door panel and the door panel is released. Since it can be moved in the frontage direction, a large opening can be obtained by moving it toward the opening end.

[0005] By the way, in a building such as an aircraft hangar, which has not only a wide frontage but also no columns in the hangar,
Because the rigidity of the whole building is low, the roof part rises due to wind pressure, and conversely, when the roof sinks due to the load of snowfall on the roof, the amount of vertical deformation of the frontage beam part is very large, so the movable pillar type There was a problem that it was difficult to apply an overdoor.

That is, since the movable strut is suspended on the rail provided on the beam portion, the strut rises together with the roof and the beam portion when wind pressure acts, for example.
At this time, the set pin fixing the support to the floor comes out, and the fixed state of the support becomes unstable. Further, if wind pressure is applied to the door panel surface in a state where the fitting length of the set pin is short, a large bending moment acts on the pin as the support is deformed, which is not preferable in terms of durability.

The present invention has been made in view of such a problem, and it is possible to securely fix and support a movable column regardless of the vertical movement of a beam portion of a building. It is a main object to provide an overdoor device that can easily operate release.

[0008]

According to a first aspect of the present invention, there is provided a support having a column for guiding both ends of a plurality of door panels disposed in a frontal direction in a vertical direction through a guide rail, A support located between a plurality of adjacent door panels is divided at its upper and lower ends, and the support is suspended so as to be movable along a rail provided at an upper part of the frontage. In addition to providing an upper set pin and a lower set pin that can be moved up and down,
An overdoor in which a set hole in which an upper set pin fits is provided at an upper portion of a frontage facing an upper end portion of a movable column at a set position, and a set hole in which a lower set pin is fitted at a floor position also facing a lower end portion. Configure the device.

An operating lever for operating the upper set pin and the lower set pin is provided on the movable column so as to swing vertically, and the upper set pin is provided at one end of the operating lever with respect to the swing center of the operating lever. The lower set pin is connected to the other end of the operating lever with the lower set pin, and the length from the swing center of the operating lever to the connecting point is set so that the lower set pin is larger than the upper set pin Then, the amount of entry into the setting hole when setting the movable column is set to be larger for the lower set pin than for the upper set pin.

According to a second aspect of the present invention, the set pin operating mechanism according to the first aspect of the present invention includes a link connecting an end portion of the lower set pin and the operating lever, and the link includes a link between the lower set pin and the operating lever. It is assumed that a line segment connecting the connection points is formed in a bent shape so as to be connected to the lower set pin at an angle smaller than an angle formed with the movement center line of the lower set pin.

According to a third aspect of the present invention, there is provided a counterweight which swings the operating mechanism of the set pin according to each of the above-mentioned inventions together with the operating lever. The counterweight moves with respect to a vertical line passing through the swinging center of the operating lever. In the operation lever position for retracting the set pin most, the lower set pin is located on the side opposite to the connection point to the operation lever, and in the operation lever position for most moving the set pin, it is provided so as to be located on the connection point side. I do.

According to a fourth aspect of the present invention, the movable support of each of the above-mentioned inventions is
At the lower end thereof, there is provided a telescopic body which descends in conjunction with the advancement operation of the lower set pin. At the time of setting, it is assumed that a shielding plate for shielding around the setting hole is provided.

[0013]

In each of the above-mentioned inventions, the movable support post is fitted with the upper set pin into the set hole above the frontage at the set position, and the lower set pin is fitted into the set hole on the floor surface. Even if it is a long column corresponding to a building with a large opening height such as a large warehouse, it is fixed firmly.

Each of the upper and lower set pins is connected to the operation lever, so that the operation lever is moved up and down simultaneously by moving the operation lever up and down, so that the movable column can be fixed or released by a simple operation.

The position of the operating lever up to the connection point with respect to the swing center is larger in the lower set pin than in the upper set pin, that is, the lower set pin is set so that the lever ratio with respect to the upper set pin is large. For a fixed lever operation amount, the lower set pin moves more than the upper set pin. In general, it is difficult to secure a sufficient fitting length because the upper set pin has a rail fixed to the upper part of the frontage, that is, it is not possible to set a large moving amount. Regardless of the restriction on the amount of movement of the upper set pin, a large amount of movement can be set for the lower set pin to secure a sufficient fitting length to the set hole, and therefore, regardless of the lifting of the beam portion. The movable column can be fixed firmly.

According to the second aspect of the present invention, the link connecting the lower set pin and the operation lever is operated because the angle at the connection between the lower set pin and the lower set pin is close to the moving center line of the set pin. The pressure angle for the vertical operation force at that time becomes smaller, so that the lower set pin having a large amount of movement can be moved with a light operation force.

According to the third aspect, when the lower set pin is retracted, the counter weight is located on the opposite side of the pivot point of the operation lever from the connection point of the lower set pin, so that the load of the counter weight is Accordingly, the weight of the lower set pin can be offset to easily hold the operation lever at the pin retracted position. For this reason, it is possible to prevent a problem that the set pin moves without permission when the movable support is moved. When the operation lever is operated to the position where the set pin advances, the counter weight moves to the same side as the connection point of the lower set pin, so that the load of the counter weight urges the set pin in the advance direction, Thereby, the operation force at the time of fixing the support at the set position can be reduced.

According to the fourth aspect of the present invention, in the case where a large gap is provided at the lower portion of the support column in consideration of the vertical displacement of the movable support column accompanying the deformation of the building, the expansion and contraction body can be used regardless of the vertical movement of the support column. , The set hole is continuously shielded by a shield plate provided at the lower end thereof, thereby preventing a malfunction due to intrusion of dust and the like which becomes a problem when the set hole is exposed. be able to.

[0019]

Embodiments of the present invention will be described below with reference to the drawings.

In FIG. 1, reference numeral 1 denotes a movable column, 2 denotes an upper fixing device, and 3 denotes a lower fixing device. The movable column 1 is a long column having a substantially T-shaped cross section including a relatively wide front surface portion 11 facing the outside and a relatively narrow rear surface portion 12 located on the back surface (indoor side) thereof. As shown in FIG. 2 or FIG. 3, a roller seat plate 5 is connected to the upper end of the front portion 11, and a column-side guide rail having a substantially C-shaped cross section along both sides of the rear portion 12. 6 is attached. Both the front part 11 and the rear part 12 of the column 1 have a hollow structure.

Roller support shafts 7 are protruded from the roller seat plate 5 at two locations near both ends thereof. Each roller support shaft 7 is rotatably supported by a pulley-shaped running roller 8 via a bearing. I have. Running roller 8
Rides on a rail 10 provided along a beam 9 made of a channel material corresponding to an upper edge portion of a door opening. The movable support 1 is suspended along the rail 10 so as to be movable in the frontage direction of the building. doing.

As the upper fixing device 2, a bracket 22 is horizontally fixed behind the beam 9, and the movable column 1 is attached to the beam 21 extending slightly above the bracket 22 and rearward. A building-side guide rail 16 is provided which is connected to the support-side guide rail 6 to form a series of door rails when in the set position facing the bracket 22. The building-side guide rail 16 is substantially vertical in the vicinity of the connecting portion with the support-side guide rail 6, but curves backward as it goes upward, and extends along the beam 21 by the length necessary for storing the door panel. Extending inward.

The door panel is formed by connecting a horizontally long rectangular door plate (not shown) so as to be bendable by shaft portions of rollers located at both ends of the door plate.
It is supported by rollers guided by these rails so that it can be raised and lowered along 6. In addition, one side end of the door panel is supported by the movable column 1 in this manner,
The other side end (not shown) is supported by a guide rail provided on the other movable column adjacent thereto or on the fixed column located at the end of the door opening. Each door panel has a movable support 1
Is fixed at the set position, the support side guide rails 6 and the building side guide rails 16 are a series at this time, so that they can be freely opened and closed via a lifting assistance mechanism made of a wire or the like (not shown). When the door is fully opened, the entire door panel is stored in the building-side guide rail 16 so that the movable column 1 can be moved.

The bracket 22 is provided with a set hole 23 (see FIG. 2).
Based on the engagement with the upper set pin 17 provided at the position, the positioning and fixing at the upper end of the movable support 1 are performed. That is,
The upper set pin 17 is supported so as to be able to advance and retreat through a pin bracket 18 inside the column 1 as shown, and the upper set pin 17 is further operated via a push rod 19 connected to the lower end thereof. 9. In conjunction with the operation of the operation lever 9, the tip of the upper set pin 17 projects or retreats from the upper end of the support. When the pin 17 is inserted into the set hole 23 in response to the lever operation, the upper end of the movable column 1 is firmly fixed below the bracket 22 at the set position. When the engagement between the pin 17 and the set hole 23 is released from this state, the upper end of the movable column 1 is released.

The lower fixing device 3 has the same configuration, that is, as shown in FIG. 4, a lower set pin 26 which extends or retracts from the lower end surface of the column is provided at the lower end of the movable column 1.
It is vertically slidably supported by a pin bracket 27 provided inside the column. The lower set pin 26 is connected to the operation lever 9 via a link 28 connected to the upper end thereof.
It is configured to move forward and backward at the same time in conjunction with. In addition, 3
A fixing hole 31 is provided in the fixing mechanism 31 provided on the set pin 26 (see FIG. 1).
Is projected toward the floor 30, the set pin 26 is fitted into the set hole 32, whereby the lower end of the movable column 1 is fixed at the set position.

The operating lever 9 is supported by a lever bracket 33 provided inside the support column so as to be able to swing up and down around a pin 34 provided so as to be located substantially above the lower set pin 26, and has a rear end. The portion penetrates through the support opening 35 and protrudes into the room outside the support. The lower end of the push rod 19 is connected to the distal end of the operation lever 9, and the upper end of a link 28 connecting the lower set pin 26 to the opposite side of the connecting portion with the pin interposed therebetween.

Compared to the length from the pin 34 on the operating lever 9 to the connection point with the push rod 19, the link 28
In this case, the lever ratio is set to about 2.5 so that the length up to the connection point with the lower set pin 2 is set for the same lever stroke from the most retracted state.
6 is designed to be larger than the upper set pin 17. As a result, even if the movable column 1 rises together with the roof portion of the building due to wind pressure or the like, a sufficient fitting length is secured between the lower set pin 26 and the set hole 32, which have a large amount of advance. Pin 26
Without excessive bending moment acting on
The movable strut can be fixed firmly. On the other hand, the operating lever 9 is pulled up to set the upper and lower set pins 17, 26.
In the retracted state, the engagement between the set pins 17 and 26 and the set holes 23 and 32 is released, so that the movable column 1 can be moved along the rail 10 in the frontage direction.

The link 28 connecting the lower set pin 26 and the operating lever 9 is formed by a line connecting the connecting points of the lower set pin 26 and the operating lever 9 with respect to the angle formed by the moving center line of the lower set pin 26. Is also bent so as to be connected to the lower set pin 26 at a small angle. In this way, the link angle at the connection portion with the lower set pin 26 approaches the set pin moving center line, so that the operation lever The pressure angle of the operation force in the up and down direction when the operator 9 operates is made smaller, so that the lower set pin 26 having a large moving amount can be moved with a light operation force.

A counterweight 37 is supported on the operation lever 9 via a support rod 36. The counterweight 37 is located at the operation lever position where the set pins 17 and 26 are retracted most with respect to a vertical line passing through the swing center (pin 34) of the operation lever 9 as shown by an imaginary line in FIG. The lower set pin 26 is provided on the opposite side of the connection point with respect to the operation lever 9 and is positioned on the connection point side at the operation lever position where the set pin is advanced to some extent. Accordingly, when the lower set pin 26 is retracted, the counter weight 37 is located on the opposite side of the pivot point of the operation lever 9 from the connecting point of the lower set pin 26, and the diagram based on the load of the counter weight 37 is used. The weight acting on the lower set pin 26 is canceled by the moment acting in the counterclockwise direction, and the operation lever 9 can be easily held at the pin retracted position. When the operation lever 9 is operated to the set pin advancing position as shown by the solid line in FIG. 4, the counter weight 37 moves to the same side as the connection point of the lower set pin 26, so that the load of the counter weight 37 is clockwise. Acts in the set pin advancing direction as a moment, thereby reducing the operating force when the column is fixed at the set position. In FIG. 4, reference numerals 38 and 39 denote magnets provided in the column 1 to assist the position holding force by attracting the operation lever 9 made of steel to the set pin retracting position or the advanced position. Although the position of the operation lever 9 can be maintained only by the counterweight 37, the provision of the magnets 38 and 39 in this way allows the operator to reliably operate the operation lever 9 to the pin retracting position or the pin advancing position. Can give an indication or a response for the purpose.

On the other hand, at the lower end of the movable column 1, a predetermined gap is provided between the movable column 1 and the floor surface 30, and an expandable body 40 which expands and contracts within this gap is provided at the lower end of the column. The elastic body 40 itself is formed of a rubber bellows that can expand and contract in the vertical direction.
Is configured to descend in conjunction with the advance operation of. At the lower end of the elastic body 40, a shielding plate 42 for shielding the periphery of the setting hole 32 in a support column setting state is attached. Based on this configuration, the elastic body 40 expands and contracts relatively with respect to the column 1 irrespective of the vertical displacement of the movable column 1 accompanying the deformation of the building.
2 is continuously shielded, so that intrusion of dust and the like into the set hole 32 can be prevented, and good operability can be secured. When the set pin 26 is retracted for the support column movement, the engaging portion 41 engages with the set pin 26 during the retreat operation and rises together with the set pin 26, thereby lifting the shielding plate 42 at the lower end from the floor surface. Therefore, the column 1 can be easily moved. In addition, the elastic body is not limited to the bellows,
For example, a telescopic structure or the like in which a leg having substantially the same cross-sectional shape as the column 1 is elastically fitted to the column lower end may be applied.

[Brief description of the drawings]

FIG. 1 is a schematic side view of an overdoor device showing one embodiment of the present invention.

FIG. 2 is a side view showing details of an upper end portion of the movable column shown in FIG. 1;

FIG. 3 is a partially cutaway front view showing details of an upper end portion of the movable column shown in FIG. 1;

FIG. 4 is a partially cutaway side view showing details of a lower end portion of the movable column shown in FIG. 1;

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 movable support 2 upper fixing device 3 lower fixing device 5 roller seat plate 6 guide rail 7 roller support shaft 8 traveling roller 9 operation lever (set pin operation mechanism) 10 rail 16 guide rail 17 upper set pin 19 push rod 22 bracket 23 Set hole 26 Lower set pin 28 Link 30 Floor surface 32 Set hole 33 Lever bracket 37 Counter weight 40 Telescopic body 42 Shield plate

Claims (4)

(57) [Claims] 1. A pillar for guiding both ends of a plurality of door panels arranged in a frontage direction in a vertical direction via a guide rail, and a pillar located between a plurality of adjacent door panels is provided at upper and lower ends thereof. In addition, this is suspended and supported so as to be movable along a rail provided at the upper part of the frontage, and an upper set pin and a lower set pin are provided at the upper and lower ends of the movable column, respectively, which can be vertically operated and retracted, An overdoor in which a set hole in which an upper set pin fits is provided at an upper portion of a frontage facing an upper end portion of a movable column at a set position, and a set hole in which a lower set pin is fitted at a floor position also facing a lower end portion. A movable support provided with an operation lever that swings in a vertical direction as an operation mechanism of the upper set pin and the lower set pin, and a swing center of the operation lever. On the other hand, the upper set pin is connected to one end of the operation lever and the lower set pin is connected to the other end of the operation lever, and the length from the swing center of the operation lever to the connection point is shorter than that of the upper set pin. The lower support pin is set to be larger, and the amount of entry into the set hole when setting the movable supporter is such that the lower set pin is larger than the upper support pin. Having an overdoor device. 2. The operation mechanism of a set pin, comprising a link connecting an end portion of the lower set pin and the operation lever, and a line connecting the connection point between the lower set pin and the operation lever is formed by a line segment connecting the lower set pin and the operation lever. 2. The over-door device having a movable column according to claim 1, wherein the over-door device is formed in a bent shape so as to be connected to the lower set pin at an angle smaller than an angle formed with respect to the center line of movement. 3. The operation mechanism of a set pin includes a counterweight that swings together with the operation lever, and the counterweight is an operation lever that retreats the set pin most with respect to a vertical line passing through the swing center of the operation lever. The position of the lower set pin is located on the opposite side of the connection point with respect to the operation lever, and the operation lever position where the set pin is advanced most is located on the connection point side. Item 3. An overdoor device having the movable support according to any one of Items 2. 4. The movable support is provided at its lower end with an extendable body which descends in conjunction with the advance operation of the lower set pin, and which supports the extendable body with respect to the lower set pin in a support set state, and 4. An over-door device having a movable column according to claim 1, wherein a shielding plate is provided at a lower end portion of the expandable body to shield around a setting hole when the column is set.