JP2006118116A - Door opening assistance method and its device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To apply opening assisting force when opening a door, without applying the opening assisting force in a door-closed state, in a door opening assisting device. <P>SOLUTION: A body 1 is provided with a rotatable lever 6 and a retractable member 11 capable of advancing and retreating. This retractable member 11 is energized toward an advancing position by a compression spring 12. When a tip part 7 of the lever 6 abuts on a door frame 3, the lever 6 rotates, and the retractable member 11 moves to a retreat position, and is held by a holding means. Restoring force is stored in the compression spring 12 as self-opening force, and the retractable member 11 is energized toward the advancing position, but does not move due to being held by the holding means. When releasing a hold of the holding means, the retractable member 11 advances and assists opening of the door. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a door opening assist method and an apparatus thereof that can assist opening at the beginning of opening when opening a door such as a sliding door.

When opening a door from a closed state, the apparatus which assists opening force is known so that a door can be opened lightly (for example, refer patent document 1, 2). These auxiliary devices assist opening by closing the door by compressing a spring or the like to accumulate self-opening force and causing the self-opening force to always act in the door opening direction. Therefore, in these devices, since the self-opening force always acts in the opening direction without performing the opening operation of the door with the door closed, in order to securely close the door with a door closer or the like, A strong closing force greater than the above self-opening force was required, and it had to be locked with a latch. For this reason, the opening operation becomes troublesome, and the adjustment of the closing force by the door closer becomes difficult.
Japanese Patent Laid-Open No. 11-280329 (Claims, FIGS. 1 to 8) JP-A-2004-124651 (Claims, [0009], [0051], FIG. 10)

  The problem to be solved by the present invention is to assist the opening of the door by adding a self-opening force in order to assist the opening force when opening the door, and the self-opening force does not act on the door when the door is closed. Another object of the present invention is to provide a door opening assist method and apparatus capable of reliably closing the door by effectively utilizing the door closing force.

  Another object of the present invention is to provide a door opening assist device that is simple in construction and can be obtained economically.

  According to the present invention, the self-opening force is accumulated in the urging means when the door is closed, the urging means is held so that the self-opening force does not appear when the door is closed, and the holding is held when the door is opened. A door opening assist method is provided, which releases the self-opening force and assists the opening of the door by the self-opening force for a period of time immediately after the door is opened.

  In addition, according to the present invention, there is a protruding member that urges the door in the opening direction, and when the door is closed, the protruding member is retracted to accumulate the self-opening force, and when the door is opened, the protruding force is applied. In the door opening assist device that advances the member to assist the opening of the door, a holding means for holding the protruding member in the retracted position in a state where the self-opening force is accumulated is provided, and the holding is performed when the door is opened. Provided is a door opening assist device characterized in that release means is provided to release the holding of the means, and the above-mentioned problems are solved.

  Further, according to the present invention, the door opening assist device has an operating member that retracts the protruding member against the door frame or the door when the door is closed, and the operating member is disposed between the operating member and the protruding member. A booster mechanism is provided so that the protruding member can be easily moved, and the holding means includes a claw portion formed on the protruding member and a locking claw piece engaged with the claw portion.

  Since the present invention is configured as described above, when the door is closed, the actuating member moves in contact with the door frame or the door, and the protruding member is moved from the advanced position to the retracted position. The restoring force is accumulated as a self-opening force in the biasing means such as a biasing compression spring, but the door is closed because the protruding member is held in the retracted position to prevent the self-opening force from appearing. In this state, the protruding member can be prevented from moving, and no self-opening force acts on the door, so that the door can be reliably closed by a normal closing force. When opening the door, when the holding means is released by the releasing means, the protruding member protrudes from the main body by the self-opening force (restoring force) of the urging means, and is opened for a while immediately after the door is opened. Can assist.

  Further, by providing a booster mechanism between the actuating member and the projecting member, the projecting member can be easily retracted even if the biasing force of the projecting member is increased, and the assisting force when assisting the opening of the door Can be increased. In addition, if the operating member is returned later than the protruding member, the movement of the protruding member is hardly hindered, the protruding member can be reliably protruded, and the door can be opened more easily. And can be obtained economically with a simple configuration.

  FIG. 1 is an explanatory view showing a configuration of an embodiment of the present invention, and the apparatus main body (1) can be provided on a door (2) such as a sliding door or a door frame (3). In the example, it is provided on the door (2), and the door frame (3) is provided with a position adjusting table (4) as desired, facing the main body. A protruding member is provided in the main body (1) so as to retract when the door is closed. The projecting member can be configured such that when the door is closed, its tip is moved in contact with the door frame or the door, but the projecting member is preferably retracted via the actuating member. Although the present invention can be applied to various doors, it is preferably provided in a sliding door with a small edge abutting on the door frame.

  The operating member can be variously configured, and FIGS. 1 to 4 show an embodiment using a lever as the operating member. That is, the lever (6) is pivotally attached to the pivot (5) provided in the main body (1), and the lever (6) is a door frame when the tip (7) closes the door. It protrudes from the main body (1) so as to abut against the base member, and communicates with the protruding member so that the base portion will be described later. The lever (6) is a weak return spring (8) and is urged to rotate counterclockwise in FIG. 1 until the stopper (9) hits a stopper (10) such as an opening edge. ing.

  The protruding member (11) is provided in the main body (1) so as to be able to advance and retreat, and is urged by a biasing means such as a compression spring (12) in the forward direction so that the front end protrudes from the small edge of the door when the door is opened. The stopper (13) moves forward until it hits a stop (14) provided on the main body. As the urging means, a tension spring, a torsion coil spring or the like can be used instead of the compression spring, and a spring stronger than the return spring (8) of the lever (6) is preferably used. As shown in FIG. 5, adjustment means such as an adjustment bolt (37) may be provided on the rear end support portion of the spring (12) so that the spring pressure can be adjusted. The protruding member (11), the actuating member, and the like move back and forth while being guided by appropriate guide members provided in the main body, but the configuration of the guide means will not be described in detail.

  The tip (7) of the lever (6) protrudes from the main body (1) larger than the tip (15) of the protruding member (11) when the door is opened, and preferably the protruding member (11). The protrusion amount (A) of the tip (15) of the lever (6) may be half or less than the protrusion amount (B) of the tip (7) of the lever (6). Furthermore, with respect to the length (C) between the pivot (5) of the lever (6) and the tip (7), the protruding member (11) is an intermediate portion of the length (C) or more than that. It is provided at a position close to the length (D) close to the pivot (5), whereby the restoring force (self-opening force) of the urging means such as the compression spring (12) can be increased.

  The lever (6) and the projecting member (11) are connected so that the projecting member (11) moves from the advance position to the retracted position when the lever (6) rotates against the door frame (3). However, it is preferably connected via a booster mechanism. As the connecting means and the boosting mechanism, the movement of the lever (6) that rotates is changed to a linear movement and transmitted to the movement of the protruding member (11), and this transmission mechanism is provided with a boosting mechanism by this action or the like. Any suitable mechanism that allows the protruding member to be moved lightly can be used.

  In the embodiment shown in FIGS. 1 to 4, a substantially sector-shaped lever control piece (17) fixed to the base end of the lever (6) with fixing pins (16) and (16) is interposed via a one-way clutch (18). The lever (6) is attached to the pivot (5), and the lever control piece (17) is rotated together with the lever (6). The pivot (5) has a substantially fan-shaped protruding member control piece (20) attached thereto via a one-way clutch (19), and a connecting pin (21) provided on the protruding member control piece (20). Is inserted into a long hole (22) formed in the protruding member (11), and is connected so that the protruding member (11) moves back and forth when the protruding member control piece (20) rotates. In the embodiment shown in the figure, the contours of the lever control piece (17) and the protruding member control piece (20) are formed in substantially the same shape, but the outer shape can be changed, and the protruding member control piece (20). May be omitted and the lever control piece (17) may be connected by providing a connecting pin (21).

  The one-way clutches (18) and (19) are engaged with the lever control piece (17) when the lever (6) contacts the door frame (3) and rotates clockwise in FIG. The protruding member control piece (20) is interlocked via the one-way clutch (18), the pivot (5), and the one-way clutch (19), and the protruding member control piece (20) or the lever control piece ( When 17) rotates in the reverse direction (counterclockwise in FIG. 1), the clutch is idled and is not interlocked. Note that the one-way clutch may be omitted and the lever control piece (17) and the protruding member control piece (20) may always be interlocked.

  The protruding member (11) is provided with holding means for holding the protruding member (11) in the retracted position, and preferably the lever (6) is also provided with similar holding means. The holding means of the embodiment shown in the figure includes claw portions (23), (24) formed on the outer peripheral edge of the lever control piece (17) and the protruding member control piece (20), and the claw portions (23), ( 24) includes locking claw pieces (26) and (27) pivotably attached to a shaft (25) provided on the main body (1) so as to be engaged with each other. 28). The shape of the claw portion and the locking claw piece allows the lever control piece (17) and the protrusion member control piece (20) to rotate in the clockwise direction in FIG. The locking claw pieces (26) and (27) are restricted by a stopper (36) so as to prevent reverse rotation.

  Release means for releasing the holding means is provided. The releasing means can be variously configured according to the configuration of the holding means, and preferably interlocked with a handle for opening and closing the door. In the embodiment shown in FIGS. 1 to 4, a handle (29) is attached to the door (2), an action piece (31) is provided on the rotating shaft (30) of the handle, and a release pin is provided on the action piece (31). (32) is projected. The release pin (32) is provided close to the action ends (33) and (34) of the locking claw pieces (26) and (27). When the handle (29) is rotated, the action ends (33) and (34) are arranged such that the release pin (32) first contacts the action end (34) of the protruding member side locking claw piece (27). Then, the inclination angle is changed so as to contact the working end (33) of the lever side latching claw piece (26). With this configuration, the lever side latching claw piece (26) is protruded and locked on the member side. The operation is delayed from the claw piece (27). The rotation of the handle (29) is limited by the stopper (35).

  As the handle of the release means in the above embodiment, a rotating handle is shown, but when a handle, a flat handle or the like is provided on the door and an appropriate link mechanism or cam mechanism is provided, and the handle etc. is grasped Appropriate levers and slide pieces for interlocking the release pins as described above, or for simultaneously operating the locking claw pieces (26) and (27), or for directly swinging the locking claw pieces. Etc. may be provided.

  Thus, as shown in FIG. 1, when the door (2) is closed by an automatic closing device or the like, when the fore end of the door approaches the door frame (3), the tip (7) of the lever (6) In contact with the door frame (3), the lever (6) rotates clockwise in the figure against the return spring (8). The rotation of the lever (6) is transmitted to the projecting member (11) via the lever control piece (17), the projecting member control piece (20), etc., and the projecting member (11) is moved from the advance position to the retracted position. The restoring force is accumulated as a self-opening force in the urging means such as the compression spring (12) that moves toward the urging member and urges the protruding member (11). In the retracted position, the protruding member (11) is held by the holding means as shown in FIG. 3, so that the tip (15) does not protrude from the main body (1), and the door is securely closed. be able to.

  When the handle (29) is rotated clockwise when the door is opened, the release pin (32) hits the action end (34) of the protruding member side locking claw piece (27) and the locking claw piece ( 27) is released, and the protruding member (11) is moved to the forward position by the restoring force of the urging means such as the compression spring (12) and protrudes from the main body (1). The tip (15) can press the door frame (3) to assist in opening the door (2). During this time, the release pin (32) hits the working end (33) of the lever side locking claw piece (26) to release the holding of the lever control piece (17) by the locking claw piece (26). The lever (6) is rotated counterclockwise by the return spring (8) to return to the state shown in FIG.

  FIG. 5 shows an embodiment in which a set piece (38) is provided as an operating member in the main body so as to be able to advance and retract. The set piece (38) and the protruding member (11) are provided with appropriate stoppers (not shown) so that the set piece protrudes larger than the tip of the protruding member (11) when the door is open. Further, one ends of connecting arms (39) and (40) are connected to the inside of the set piece (38) and the protruding member (11), respectively. Each of the connecting arms (39), (40) is provided so as to be swingable around the fulcrum (41), (42), and is connected to the set piece (38) by connecting the other ends to projecting members ( 11) moves. For convenience of explanation, the connecting part of each connecting arm is indicated by a circle, but this part is provided with a slot or the like in one connecting part so that the connecting arm can swing. The positions of the fulcrums (41) and (42) are provided at positions where a booster mechanism can be configured by lever action so that the protruding member can be easily moved.

  The set piece (38) and the protruding member (11) are formed with claw portions (43) and (44) (shape allowing backward movement) that constitute the holding means in the same manner as in the above embodiment. A set one-side locking claw piece (45) and a protruding member-side locking claw piece (46) are provided so as to engage with the claw portions (43) and (44), respectively. Each locking claw piece (45), (46) is attached to the shaft (47), (48) so as to rotate in a direction to engage with the claw portion (43), (44) by a spring or the like not shown. A rotating plate (49) that is pivotally attached and is rotated by a handle (not shown) constituting a releasing means is connected to the locking claw pieces (45) and (46) by connecting plates (50) and (51), respectively. ing.

  Thus, when closing the door (2), if the tip of the set piece (38) hits the door frame (3), the set piece (38) is retracted and is connected via the connecting arms (39) and (40). Then, the protruding member (11) is retracted, and the urging means such as the compression spring (12) urging the protruding member (11) is pressed, and the restoring force (self-opening force) is accumulated. Locking claw pieces (45) and (46) that allow the backward movement are engaged with the claw portions (43) and (44) formed on the set piece (38) and the protruding member (11). Therefore, the set piece (38) and the protruding member (11) are held in the retracted position, and the self-opening force of the urging means does not appear when the door is closed.

  When opening the door, if the handle is operated to rotate the rotating plate (49) in the direction of the arrow (52), the locking claw pieces (45), ( 46) is away from the claw portions (43) and (44), so that the protruding member (11) protrudes to the forward position by the restoring force (self-opening force) of the urging means, and the tip hits the door frame (3). The opening of the door can be assisted.

  FIG. 6 shows another embodiment using a set piece. Since this embodiment is basically the same as the embodiment shown in FIG. 5, the main difference will be described in order to avoid duplication of description. The set piece (38) and the protruding member (11) are brought close to each other. The other ends of the connecting arms (39) and (40) are connected to each other via the link (53), the locking claw pieces (45) and (46) are pivotally attached to the shaft (25), and the handle (29 1) is provided in substantially the same manner as in the embodiment shown in FIG.

  In FIG. 6, when the door (2) is closed, the set piece (38) hits the door frame (3) and retreats, and protrudes through the connecting arms (39), (40) and the link (53). 11) also retracts, and restoring force (self-opening force) is accumulated in the urging means such as the compression spring (12), and the pawl portions (43), (44) and the locking pawl pieces (45) that allow the backward movement. ), (46), the protruding member (11) and the set piece (38) are held in the retracted position.

  When the door is opened, the handle is rotated to bring the release pin (32) into contact with the action end of the locking claw pieces (45) and (46) to rotate the locking claw piece. When the engagement between the claw pieces (45) and (46) and the claw portions (43) and (44) is disengaged, the protruding member (11) protrudes to the advanced position by the restoring force of the urging means, and assists in opening the door. can do. At this time, as shown in FIG. 1, by changing the inclination angle of the action end of the locking claw pieces (45), (46), the locking claw piece (45) on the set piece side protrudes and the locking claw piece (45) on the protruding member side ( It can also be configured to turn later than 46).

  As described above, the main body can also be provided on the door frame side. In this case, the tip of the lever or set piece is moved in contact with the door when the door is closed. Is substantially the same as the above-described embodiment.

Explanatory drawing which shows one Example of this invention. Explanatory drawing which shows a some modification. Explanatory drawing of the state which closed the door. Sectional drawing. Explanatory drawing which shows another Example. Explanatory drawing which shows another Example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Main body 2 Door 3 Door frame 5 Pivot 6 Lever 7 Lever 7 End part 11 Lever 11 Extrusion member 12 Compression spring 17 Lever control piece 18, 19 One-way clutch 20 Ejection member control piece 23, 24, 43, 44 Claw part 26, 27, 45, 46 Locking claw piece 29 Handle 32 Release pin 33, 34 Working end 38 Set piece 39, 40 Connecting arm

Claims (13)

  When the door is closed, the protruding member is retracted through the door frame or the actuating member that contacts the door, and the self-opening force is accumulated in the urging means that urges the protruding member in the forward direction. The biasing means is held so that the self-opening force is not expressed, and when the door is opened, the holding is released, the self-opening force is expressed to advance the protruding member, and the self-opening force is applied for a short time immediately after the door is opened. A door opening assist method characterized by assisting the door opening.   The door opening assist method according to claim 1, wherein the self-opening force accumulated in the urging means is a force larger than a door closing force.   The door opening assist method according to claim 1, wherein the self-opening force accumulated in the biasing means is adjustable.   It has a protruding member that urges the door in the opening direction. When closing the door, the protruding member is retracted to accumulate the self-opening force, and when the door is opened, the protruding member is advanced by the opening force to open the door. In the door opening assist device, when the door is closed, an operating member is formed so as to retract the protruding member against the door frame or the door, and the protruding member is stored in the state where the self-opening force is accumulated. A door opening assist device, characterized in that holding means for holding in a retracted position is provided, and release means is provided to release the holding of the holding means when the door is opened.   The door opening assist device according to claim 4, wherein the protruding member and the operating member are connected via a booster mechanism so as to accumulate a self-opening force larger than a door closing force.   The door opening assist device according to claim 4, wherein the protruding member is urged by an urging means provided so that an urging force can be adjusted.   The actuating member includes a lever pivotally mounted in a main body attached to a door or a door frame, and the boost mechanism includes a lever control piece provided at a base end of the lever and the lever control piece. The door opening assist device according to claim 5, further comprising a protrusion member control piece coupled to the protrusion member so as to be interlocked with the protrusion member.   The lever control piece and the projecting member control piece are linked to the pivot of the lever through a one-way clutch so that the lever is pressed when the lever is pressed by the door frame or the door and is rotated, and is not linked when the door is opened. The door opening assist device according to claim 7.   The actuating member includes a set piece provided in the main body so as to be movable back and forth, and the booster mechanism includes a connecting arm connected to the set piece and a connecting arm connected to the protruding member so as to interlock with the connecting arm. The door opening assist device according to claim 5.   5. The door opening assist device according to claim 4, wherein the holding means includes a claw portion formed on the protruding member and a locking claw piece engaged with the claw portion.   5. The door opening assist device according to claim 4, wherein the holding means includes a claw portion formed on the protruding member and the operating member, and a locking claw piece that engages with the claw portion.   The locking claw piece engaged with the claw portion of the operating member is connected to the release means so as to operate later than the locking claw piece engaged with the claw portion of the protruding member. Door opening assist device.   The door opening assist device according to any one of claims 10 to 12, wherein the release means includes a handle for operating the locking claw piece.

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