JP2008038346A - Warp preventive device of door - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a door from causing warp in the whole surface or in part to impair the smoothness of opening and closing operation when the working condition such as temperature and humidity is different between the spaces in front of and behind the door, in an opening and closing device using the door with a pivot type hinge. <P>SOLUTION: In the opening and closing device 1 using the door with the pivot type hinge, a warp preventive device of the door is so constructed that one of at least one pair of a male part 11 and a female part 21 is fitted to a joint of a frame 2 and the door 5 of the opening and closing device, and when the opening and closing device is held in the closing state, the male part and the female part are engaged to fix the frame and the door, whereby the door can be forcibly prevented from deforming even when expansion or contraction is caused on the front and back surfaces of the door due to a difference in environment condition between the spaces separated by the door not to be an obstacle to opening and closing operation. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

The present invention relates to the prevention of warpage of a door used by being attached to an opening of a building.

When a door is used for a fitting that is a component member of an opening / closing device that is installed in an opening where a person enters and exits, the door is pivotably held by connecting the frame around the opening and the door with a hinge. The hinges can be roughly classified into two types based on the positional relationship between the flat plate and shaft used for connecting the frame and the door. One is the parallel connection between the blade surface and the shaft, and the two blades are the shaft. A mold that opens and closes like a butterfly around the other, and the other one is that the support plate surface and axis shown in Patent Document 1 by the applicant are cross-connected at right angles so that the two support plates are kept parallel and around the axis. There is a type called a pivot that rotates.

The butterfly shape uses two left and right vertical joints of the frame and the door, and usually uses two metal doors and two or three wooden doors. The pivot type uses two joints, whether metal or wooden, using the upper and lower joints of the frame and door. In both cases, the shaft part of the center of rotation is used at a position away from the seam, but all butterfly hinges used have the ability to support the load, whereas the pivot type hinges support the load on the lower side. The upper side serves as a guide for rotation.
JP 2007-138170 A

Metal or wooden doors used in normal environments are unlikely to deform, but if there are differences in environmental conditions such as temperature and humidity in the space before and after the doors, the door 5 warps as shown in FIG. There is a possibility that will occur. Metal doors are primarily affected by temperature, and wooden doors are affected by humidity and other factors in addition to temperature and pretreatment conditions such as drying of the materials used. Sometimes. In such a case, depending on the degree of warpage, it becomes difficult to fit into the door frame, airtightness and smoothness of the opening / closing operation are lowered, and a squeak noise is generated every time the door is opened and closed, making locking difficult.

The door uses multiple hinges. It was explained in the previous paragraph that the load support structure is different depending on whether the hinge is a butterfly type or a pivot type, and the support structure is also closely related to the warp of the door. In the butterfly type, the long sides of the two slats are connected to each other with a long shaft so that the frame and the door can be connected with the slats to obtain a strong structure that does not warp the door. Is simply connected to the thickness direction of the two support plates so as to be pivotable, so it is considered to be a pin joint in terms of usage and has a structural problem that it is weaker to the warp of the door than the butterfly shape.

When the inside and outside environments of the door are greatly different, warpage is likely to occur when the binding force between the frame and the door is insufficient. When this state is applied to the opening / closing device in use, the range where the restraining force is applied is stopped around the hinge connecting portion, and the other portions are areas where the restraining force is difficult and warpage is likely to occur. Since the occurrence of warpage causes the problems described above, it is necessary to prevent the warpage by expanding the range where the binding force reaches. The number of butterflies can be increased, but the pivot type is difficult to handle. The present application researched the pivot type countermeasures and developed an optimal device.

The present invention relates to an opening / closing device having a pivot type hinge attached to a door, and at least one pair of male and female appliances is attached to the joint of the opening / closing device frame and the door, respectively, and the opening / closing device is closed. When the male instrument and female instrument are fitted to each other and the frame and the door are fixed, the door is deformed even if expansion or contraction occurs on the front and back of the door due to the difference in environmental conditions of the space separating the door. It is a door warpage prevention device that forcibly prevents it from occurring and does not hinder the opening and closing operation.

The door warpage prevention device of the present invention prevents the door using the pivot type hinge from being deformed due to the influence of the usage environment, so that it can be used for opening and closing operations such as a decrease in airtightness, a decrease in smoothness and the generation of sound. It became difficult to cause the trouble.

According to the present invention, in an opening / closing device using a pivot type hinge and a door, if the usage conditions such as the temperature and humidity of the space before and after the door are different, the entire or part of the door is warped, and the opening / closing operation is performed. Since the above-mentioned problem that impairs smoothness is caused, an anti-warp device composed of at least one pair of males and females is attached to an arbitrary portion of the vertical joint of the door and the frame corresponding to the upper and lower hinges. It is desirable to take measures to prevent the occurrence.

The pivot type hinge is attached to one of the support plates corresponding to the butterfly blade using the upper and lower sides of the door, and the other support plate is attached using the upper and lower frames or the inner surface of the vertical frame. Install with the part holding surface protruding from the top and bottom frames. In the case of the lower hinge, it is often arranged so that the embedded rotary part holding surface is exposed from the floor surface of the frame side support plate. The preventive device for protecting the door from warping is not conspicuous if it is stored in a vertical joint between the frame and the door so that it cannot be seen when the door is closed.

Since the male appliance tip of the warp prevention device protrudes every time the door is opened, from the safety aspect during opening and closing operations, a male appliance is attached to the frame side to partially protect the protruding part with the door and to the door side. It is desirable to use female instruments. If the safety of the device can be secured, it can be installed in reverse. Since the mating surfaces of the male and female devices repeat contact and release each time they are opened and closed, it is necessary to flexibly absorb misalignment due to increase or decrease of the warp of the door, so the male side is made of metal and the female side is more durable than both sides are made of metal. A combination of synthetic resins with high properties and elasticity is good.

FIG. 1 is a front view of an opening / closing device using a pivot type hinge. FIG. 2 is a perspective view showing the arrangement of the warp preventing device when the door is opened from the closed state of FIG. FIG. 3 is a perspective view of a male device for preventing warpage. 4 (ABBCDE) is the same as the cross-sectional view taken along the line aa 'in FIG. It is sectional drawing and a perspective view which follow a bb 'line. FIG. 5 (AB) is a perspective view of the female device body with a retaining flange and a slip stopper. FIG. 6 (ABC) is a cross-sectional view of the three states of the warp preventing device along the line cc 'in FIG.

As shown in FIG. 1.2, pivot hinges 7.8 are used above and below the frame 2 and door 5 of the opening / closing device 1, and the frame with four doors at the middle of the upper and lower hinges and the vertical joint 6 of the door. A set of warpage prevention devices is stored. The male instrument 11 in FIG. 3 is a molded product obtained by bending a metal plate, and the tip 13 of the protruding portion 12 is rounded so that the female instrument 21 can be easily fitted. When the female instrument is fitted to the male instrument, the flange 14 is securely fixed to the frame with the screw 16 (see FIG. 6) in order to receive an impact.

FIG. 4A shows a state in which the male instrument 11 is temporarily received and the male instrument 11 is received when the female instrument body 22 made of synthetic resin is inserted into the hole 3 (see FIG. 6) fixed in the door 5 and fixed. At the same time, the female tool body is slid using the long hole 25 on the flange 23 surface to ensure the optimum position. FIG. 4 (B) shows a female instrument body in which uneven slip stoppers 28 are provided on the flange surface. FIG. 4 (C) shows a recess 25 with gentle slopes on both sides to fit with the protrusion 12 of the male instrument. FIG. 4D shows a flange 26 protruding from a flange surface that restricts the movement of the female instrument body in the front-rear direction by a hole 32 cut into a holding flange described later. FIG. 4E is a perspective view of the female instrument body. In FIG. 5A, the female instrument body that has been positioned by the holding flange 31 of the female instrument body is placed over the hole 33 and fixed through the screw 34. Further, as shown in FIG. 5B, a non-slip 35 having the same shape as the above-described anti-slip of the female instrument body may be attached to the back surface of the flange.

FIG. 6 (ABC) shows the movement of the warpage prevention device during the door opening / closing operation. FIG. 6A shows a state in which the opening / closing device is in a closed state. Point C is the rotation center of the pivot hinge, and the female instrument body 22 of the female instrument 21 inserted into the wide hole 3 of the door 5 Although the female instrument body can be moved along the long hole 25 by a distance corresponding to the margin of the wide hole, the margin is allocated for eliminating the misalignment of the male instrument 11 due to the warp of the door. You can FIG. 6 (B) shows a state in which the closed state is released and the male instrument is detached from the female instrument body. FIG. 6C shows a state in which the male instrument is completely separated from the female instrument body, and the LL ′ value is an adjustment allowance corresponding to the movement by the long hole 24.

It is a front view of the switchgear using a pivot type hinge. (Example) It is a perspective view which shows arrangement | positioning of the curvature prevention tool when a door is made into an open state from the closed state of FIG. It is a perspective view of the male instrument of curvature prevention. (A.B.C.D.E) is a plan view of a female device body for preventing warpage, a perspective view with a slip stopper, a cross-sectional view taken along the line aa 'in FIG. It is sectional drawing and a perspective view which follow a b 'line. (AB) is a perspective view of the female device body with a retaining flange and a slip stopper. (ABC) is sectional drawing of the three states of the time of the door of the curvature prevention instrument in alignment with the cc 'line of FIG. A warped door

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Opening / closing device 2 Frame 3 Hole 4 Per door 5 Door 6 Joint 7.8 Vertical pivot type hinge 11 Male instrument 12 Protruding part 13 Tip 14.18.23 Flange 21 Female instrument 22 Female instrument body 23 Flange 25 Long hole 25 Depression 27 ２８ 28.35 Non-slip 31 Holding flange 32 Hole

Claims (5)

In the opening / closing device (1) in which a pivot type hinge is attached to the door, at least one pair of the male device (11) and the female device (21) is connected to the frame (2) of the opening / closing device and the door (5). When the opening and closing device is held in a closed state, the male and female appliances are fitted and the frame and the door are fixed to expand the front and back of the door due to the difference in the environmental conditions of the space separating the doors. Or a door warpage prevention device that forcibly prevents the door from being deformed even if contraction occurs, and does not hinder the opening and closing operation. The door warpage prevention device according to claim 1, wherein the female device (21) includes a female device body (22) and a holding flange (31). The door warpage prevention device according to claim 2, wherein a slip stopper (28.35) made of continuous irregularities is attached to both mating surfaces of the female device body (22) and the holding flange (31). The door warpage prevention device according to any one of claims 1 to 3, wherein a long hole (25) is provided in the flange (23) surface of the female device body (22). An opening / closing device using the door warpage prevention device according to claim 1.