JP3426347B2 - Door sealing mechanism - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a door sealing mechanism suitable for a window structure of a building provided in a cold region.

[0002]

2. Description of the Related Art In a cold region, a sealing mechanism for enhancing the sealing property of a door that opens and closes a window may be provided in association with the window in order to enhance the heat retention in the room. In one of the conventional sealing mechanism, in the door for closing the window frame opening,
A steel belt is arranged as a transmission means around the edge of the door, and the steel belt is provided with an operating device having a lever. Further, the steel belt is provided with a contactor, and by operating the lever,
The steel belt is integrated with the contact provided on it,
It is possible to move a predetermined stroke amount along a predetermined path. When the steel belt is moved by a predetermined amount by operating the lever with the door in the closed position,
The contacts provided on the cam ride on the cam member provided on the window frame along the path of the steel belt. The cam member presses the door toward the outdoor side portion of the window frame through the contactor mounted on the cam member.

Therefore, according to the conventional sealing mechanism, the door can be entirely pressed against the window frame by engaging the contact element with the cam member by operating the lever, thereby improving the airtightness of the room. Can be increased. Further, the sealing mechanism can be released by releasing the engagement between the contact and the cam member by operating the lever. Further, in the above-mentioned conventional sealing mechanism, when the lever is operated, a device such as a guide device is provided at each corner so that the steel belt is reliably guided along the corner of the path around which the steel belt travels. ing.

[0004]

However, in the above-mentioned conventional sealing mechanism, when the steel belt passes through the guide device, the steel belt which receives a strong tensile force from the operating device makes surface contact with the guide device. It slides while receiving a strong frictional force from this guide device. Therefore, in order to operate the lever of the operating device, a large operating force that overcomes this strong frictional force is required. In order to reduce this operation force, it has been attempted to make the portion of the steel belt that slides on the guide device a multilayer structure in which a large number of leaf springs are stacked. According to this, although the pressing force to the guide device is slightly reduced due to the elasticity of the leaf spring, the effect of sufficiently reducing the operating force cannot be expected, and conversely, since a leaf spring having a multilayer structure is used, As a result, the structure becomes complicated and the cost increases. Therefore, an object of the present invention is to provide a door sealing mechanism that can be operated with a relatively small operating force and that has a relatively simple structure and does not cause an increase in cost.

[0005]

The present invention is a door sealing mechanism for pressing a door at a closed position of an opening defined by a frame against the frame, the door sealing mechanism being arranged around an edge of the door. A transmission means, an operating device for reciprocating the transmission means by a predetermined amount along the path, and a guide device provided at a corner portion of the path for guiding the transmission means along the path. A cam device provided with a contact member provided on the transmission means and a cam member for engaging the contact member when the operating device is operated and pressing the door against the frame body through the contact member; A door sealing mechanism in which at least a portion of the transmission means that slides the guide device by operation of the operating device includes a wire member, and the transmission means slides the guide devices. When, The wire member includes a flat plate member that moves along a straight line path between the wire members, and a connecting member that connects the flat plate member and the wire member, and the wire members between the connecting members form a pair. It is characterized in that a rotating body rotatable inside the guide device is arranged between the wire members which are arranged substantially in parallel with each other.

[0006]

In the door closing mechanism according to the present invention, even if a strong pulling force acts on the wire member due to the operation of the operating device, the wire member makes line contact with the guide device without making surface contact, so that the operating device At the time of operation, the strong frictional force as in the conventional door sealing mechanism does not act as a resistance force. Further, the operating force can be reduced more effectively than the conventional one using the leaf spring having the multilayer structure without using the leaf spring having the multilayer structure, and the configuration can be simplified.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The features of the present invention will be further clarified by the following description along with the illustrated embodiments. The most characteristic part of the present invention is shown in FIG. 1. Prior to the description, the general structure of the door sealing mechanism according to the present invention will be described with reference to FIGS. 2 and 3. The door sealing mechanism 10 according to the present invention, as shown in FIG.
It is applied between a window frame 12 formed of a rectangular frame body and a door 16 for opening and closing an opening 14 defined by the window frame 12. In the illustrated example, the door 16 is a glass shoji that includes a rectangular frame 18 and a glass 20 attached to the frame 18. The glass screen 16 is slidably arranged in the grooves 22 formed in the duck 12a and the sill 12b of the window frame 12, and between the illustrated closed position and the open position housed in the door pocket 24. It can be moved.

A transmission means 26 is provided along the frame 18 of the glass screen 16 inside the room, and an operating device 28 is provided in association with the transmission means 26. The transmission means 26 is arranged along a rectangular path along the frame 18 by the guide devices 30 arranged at the four corners of the frame 18. In the transmission means 26, the linear path portion defined between the guide devices 30 is composed of a steel belt 32 similar to the conventional one. In the straight line portion constituted by the steel belt 32, in the example shown in FIG. 2, in the straight line portion along the vertical frame 18a of the glass shoji 16, the contactor 34 made of a piece as shown in FIG. It is rotatably supported by the rotary shaft 34a.

Further, the transmission means 2 including the steel belt 32 in the straight portion formed by the steel belt 32.
The operating device 28 for moving the entire 6 along the path is provided, and the operating lever 36 thereof is provided with the vertical frame 18
It is rotatably supported by a. A pinion 38 is provided on the rotary shaft 36 a of the operation lever 36, and the pinion meshes with a rack 40 provided on the steel belt 32. Therefore, by operating the operation lever 36, the steel belt 32 and the transmission means 26 including the steel belt 32 can be moved as a whole through the rack 40 meshing with the pinion 38. In the vicinity of the contactor 34 in the vertical frame portion 12c of the window frame 12, a cam member 42 that can be engaged with the contactor 34 by the movement of the transmission means 26 is provided.
The cam member 42 is also provided on the edge portion of the door pocket 24 so as to correspond to each contactor 34. Each cam member 42 constitutes a cam device together with the corresponding contactor 34, and when the contactor 34 rides on each cam member 42, the glass shoji 16 is pressed to the window frame 12 to the outside of the window frame 12 via the contactor. This improves the hermeticity.

In the door sealing mechanism 10 according to the present invention, each curved portion of the transmission means 26 is composed of, for example, a pair of metal wire members 44, as shown in FIG. The pair of metal wire members 44 are arranged substantially parallel to each other, and the respective end portions of the wire members are connected to one end of the connecting member 46 via screws 48. The other end of each connecting member 46 has a screw hole 50 formed in the connecting member.
It is connected to the end portion of the flat plate member formed of the steel belt 32 by the screw member 52 that is screwed into. As a result, the transmission means 26 that goes around the above-described rectangular path is continuously formed. In addition, each pair of metal wire members 44
A rotating body 54 made of a metal ball is rotatably disposed between the connecting members 46 and 46, which are connected to each other via the wire member.

Transmission means 26 in which the rotating body 54 is arranged
Each guiding device 30 that receives the curved portion of is provided with a lower casing 56 and an upper casing 58 that are molded at 90 degrees. As shown in FIGS. 4 and 5, both casings 56 and 58 are provided with guide grooves 60 for slidably receiving the wire member 44, the connecting member 46 and the rotating body 54 therein. Has been formed. As shown in FIG. 1, the guide groove 60 constitutes a curved surface 60a having a smooth and uniform curvature at a corner portion of the lower casing 56, and reinforcing ribs 56a are provided on both sides thereof.
Are formed. Both casings 56 and 58 are connected to each other by a screw member 62 that penetrates a slit 46a formed in the connecting member 46. Slit 46a
Is extended in the longitudinal direction of the connecting member 46, and the operating lever 36
When the is operated, the length is set to be long enough to allow the transmission means 26 to reciprocate with a predetermined stroke. The guide groove 60 is also set to have a length dimension sufficient to rotatably hold the rotating body 54 with the above-described predetermined stroke.

In the door closing mechanism 10 according to the present invention, the lever 36 of the operating device 28 is operated to engage the contact 34 with the cam member 42 when the glass screen 16 is in the position to close the opening 14. Then, the transmission means 26 is moved by a predetermined amount in the counterclockwise direction of the frame 18 as seen in FIG. At this time,
Each pair of wire members 44 of the transmission means 26 slides in the corresponding guide device 30, but each wire member 44 slides in line contact with the surface of the guide groove 60 of the casing, and between the wire members 44. The arranged rotating body 54 reduces friction with the casings 56 and 58. Therefore, when the operation lever 36 is operated, a strong resistance force unlike the conventional door sealing mechanism does not act. Therefore, the contactor 34 provided on the transmission means 26 can be operated with a relatively small operating force.
Can be mounted on the corresponding cam member 42. As a result, the glass screen 16 can be pressed against the window frame 12 to the outside of the room with a relatively small operating force, and the airtightness of the room can be improved.

In the above description, an example in which a part of the transmission means 26 is composed of the wire member 44 has been described. However, it is possible that all of the transmission means 26 is composed of a single wire member or a plurality of wire members arranged in parallel. it can. However,
In order to improve durability, it is desirable that the linear path of the transmission means 26 be formed of a flat plate member such as the steel belt 32. Further, although the rotating body 54 may be unnecessary, it is desirable to use the rotating body 54 in order to enable smoother operation. With respect to this rotating body, a cylindrical rotating body having a rotating shaft supported between a pair of wire members 44 can be used instead of the illustrated ball. However, in order to simplify the manufacturing process and reduce the number of parts, it is desirable to use metal balls that are filled to the extent that rotation is not hindered, as illustrated. Further, the present invention can be applied to a hinged door instead of the sliding door as described above.

[0014]

According to the present invention, as described above, since the wire member of the transmission means makes a line contact with the guide device without making a surface contact, it is as in the conventional door sealing mechanism when the operating device is operated. Strong resistance does not work. From this, the door in the closed position can be given a sealing action with a very small operating force, or the sealing action can be released. Further, since the operating force can be effectively reduced without using a leaf spring having a multi-layered structure, it is possible to simplify the configuration and thus reduce the manufacturing cost.

[Brief description of drawings]

FIG. 1 is a perspective view showing a disassembled state of a transmission means and a guide device according to the present invention.

FIG. 2 is a top view showing a door sealing mechanism according to the present invention.

3 is a cross-sectional view taken along the line AA shown in FIG.

4 is a cross-sectional view taken along the line BB shown in FIG.

5 is a cross-sectional view taken along line C-C shown in FIG.

[Explanation of symbols] 12 frame 14 openings 16 units 26 Transmission means 28 Operation device 30 guidance device 34 Contact 42 Cam member 44 wire member

Claims (3)

(57) [Claims] 1. A door sealing mechanism for pressing a door at a closed position of an opening defined by the frame against the frame,
Transmission means arranged around the edge of the door, an operating device for reciprocating the transmission means by a predetermined amount along the path, and a corner portion of the path, the transmission means being provided on the path. A guide device for guiding along, and a contact provided on the transmission means and the operating device, when the operating device is operated, engages with the contact and presses the door against the frame through the contact. A cam device having a cam member for, a portion of the transmission means that slides at least the guide device by the operation of the operating device is a door sealing mechanism configured by a wire member , and the transmission means is
Each wire member that slides each of the guide devices, and
A flat plate member that moves along a linear path between the wire members,
A connecting member for connecting the flat plate member and the wire member,
The wire members between the connecting members are paired.
Between the wire members that are paired, but are arranged substantially parallel to each other.
Is provided with a rotating body rotatable in the guide device.
A door sealing mechanism characterized by being 2. The rotating member is the wire member forming a pair.
Balls disposed between and arranged between the connecting members
The door sealing mechanism according to claim 1, wherein 3. The ball is substantially filled between the connecting members.
Is filled with the guide device for the ball
The door sealing mechanism according to claim 2, wherein the guide groove is formed.