JP7414234B2 - Self-opening mechanism for door panels, and sliding or folding doors equipped with the same - Google Patents

Description

The present invention relates to a self-opening mechanism for automatically opening a door plate, and a sliding door plate or a folding door equipped with the same.

BACKGROUND ART A slide assist device has been developed that automatically moves the door plate of a sliding door to a closed position after it reaches a certain closed position when closing a sliding door (for example, Patent Document 1).

In addition, the slide assist device of Patent Document 1 is provided with a delay device that prevents the closing force of the slide assist device from acting when opening the door plate of the sliding door from the fully closed state, and is designed to make it easier to open the sliding door. being done.

JP 2018-131769 Publication

However, in the slide assist device of Patent Document 1, when opening the sliding door plate, it was necessary to manually open the sliding door to a predetermined position.

The present invention was developed in view of the problems of the prior art. Therefore, the main object of the present invention is to provide a self-opening mechanism capable of automatically opening a sliding door plate, and a sliding door plate equipped with the self-opening mechanism.

According to one aspect of the invention,
A self-opening mechanism having a tension spring attached to a pair of door plates that can be slid against each other,
One end of the tension spring is attached to one of the door panels,
The other end of the tension spring is attached to the other door plate. A self-opening mechanism is provided.

According to other aspects of the invention,
A self-opening mechanism having a tension spring attached to a pair of door plates that can be slid against each other,
One end of the tension spring is attached to a runner attached to one of the door panels,
The other end of the tension spring is attached to another runner attached to the other door plate. A self-opening mechanism is provided.

According to another aspect of the invention,
A self-opening mechanism having a tension spring attached to a pair of door plates constituting a folding door,
One end of the tension spring is attached to an end of one of the door plates on a side far from the other door plate ,
A self-opening mechanism is provided in which the other end of the tension spring is attached to an end of the other door plate that is farther from the one door plate.

Preferably, the tension spring is a constant force spring.

According to another aspect of the invention,
The above self-opening mechanism,
A sliding door panel is provided that includes a pair of door panels that can be slid against each other.

According to another aspect of the invention,
The above self-opening mechanism,
A folding door is provided, comprising a pair of door plates that constitute the folding door.

According to the present invention, since the tension spring is directly attached between a pair of door panels that can be slid against each other without using a door frame or the like, when opening one door panel while the other door panel is fixed, The elastic force of the tension spring pulls the other door panel toward one door panel, and the self-opening function of the door panel can be realized.

In addition, because the tension spring is attached directly between a pair of door panels without intervening the door frame, for example, one door panel can move toward the remaining door panel and maintain the open state, while both door panels can be moved toward the other door panel. can be moved all at once.

It is a front view showing a sliding door plate 10 including a self-opening mechanism 100 to which the present invention is applied. FIG. 2 is a plan view showing a fully closed state of a sliding door plate 10 including a self-opening mechanism 100 to which the present invention is applied. FIG. 2 is a plan view showing one side of a sliding door plate 10 including a self-opening mechanism 100 to which the present invention is applied, with one side fully open. FIG. 4 is a front view showing the catch 40. FIG. FIG. 6 is a diagram showing a state in which the catch 40 and the runner 16 are engaged with each other. FIG. 4 is a plan view showing a state in which both door panels 12 and 13 have been moved together from the state in FIG. 3 . 3 is a perspective view showing a slide assist device 18. FIG. FIG. 7 is a front view showing a sliding door plate 10 including a self-opening mechanism 100 according to a first modification. 7 is a plan view showing a fully closed state of a sliding door plate 10 including a self-opening mechanism 100 according to a first modification. FIG. FIG. 7 is a plan view showing a fully open state on one side of a sliding door plate 10 including a self-opening mechanism 100 according to a first modification. FIG. 7 is a plan view showing a fully closed state of a sliding door plate 10 including a self-opening mechanism 100 according to a fourth modification. FIG. 7 is a plan view showing a fully closed state of a sliding door plate 10 including another self-opening mechanism 100 according to a fourth modification.

(Configuration of sliding door plate 10)
Hereinafter, a self-opening mechanism 100 to which the present invention is applied and a sliding door plate 10 equipped with the same will be explained using the drawings. As shown in FIGS. 1 to 3, the sliding door plate 10 according to the present embodiment includes at least a door frame 11, a pair of door plates 12 and 13, a rail 14, a runner 16, and a self-opening mechanism 100. It is configured.

In addition, in this embodiment, an example is shown in which the sliding door plate 10 is applied to a "sliding door" that opens and closes an opening 20 through which people and cargo pass, which is made up of a door frame 11 provided in a building. Applications of the self-opening mechanism 100 and the sliding door plate 10 equipped with the same according to the invention are not limited to these, but include, for example, showcases installed in shops, cabinet furniture installed in ordinary homes, etc. It can be applied to items equipped with "sliding door panels" of various sizes.

The door frame 11 is a member that constitutes an opening 20 that is opened and closed by sliding a pair of door plates 12 and 13.
Note that the door frame 11 may be made of any material such as metal, resin, wood, etc. as long as it can ensure strength.

The pair of door plates 12 and 13 are plate materials that open and close the opening 20 formed by the door frame 11 as described above.

One rail 14 is attached to each of the door panels 12 and 13 on the top surface of the opening 20 to which the pair of door panels 12 and 13 are attached. Thereby, the pair of door panels 12 and 13 can be slid against each other.

Moreover, each rail 14 has a runner running surface 22 on which a runner 16 attached to the top surface of the door panels 12, 13 and a slide assist device 18 (described later) runs. Note that the rail 14 may be made of any material such as metal, resin, wood, etc. as long as it can ensure strength.

The self-opening mechanism 100 of this embodiment includes a tension spring 17 and a catch 40, as shown in FIGS. 1 to 3.

This tension spring 17 is a "constant force spring" that always provides a substantially constant pulling force regardless of the length of the extended stroke. Further, one end of the tension spring 17 (the main body side of the tension spring 17) is attached to the upper end of the side surface of one door plate 12 on the side far from the other door plate 13, for example, via a bracket or the like. Further, the other end of the tension spring 17 is attached to the upper end of the side of the other door plate 13 on the side far from the one door plate 12, for example, via a bracket or the like.

The catch 40 is a member that applies an urging force to hold the door panels 12 and 13 in the closed position. For example, as shown in FIG. 4, the catch 40 includes a main body 42 fixed to both ends of the door frame 11, and a catch protruding from the approximate center of the main body 42 to the lower left in the figure. 44.

A fixing screw insertion hole 46 for inserting a fixing screw (not shown) for fixing the catch 40 to the door frame 11 is formed at the right end of the main body 42 in the figure. Further, the left end portion of the main body portion 42 in the figure is formed into an arc shape that is approximately the same diameter as the wheel of the runner 16.

As described above, the locking portion 44 projects from the approximate center of the main body 42 toward the lower left in the figure, so that its tip 48 moves toward and away from the main body 42 due to the elasticity of the material. It looks like this. As a result, when the door panels 12, 13 are moved to the closed position, the tip 48 of the locking portion 44 of the catch 40 engages with the runner 16 attached to each door panel 12, 13, as shown in FIG. , the door plates 12 and 13 are held in their respective closed positions.

(Operation of self-opening mechanism 100)
Next, the operation of the self-opening mechanism 100 in the above-described sliding door plate 10 will be explained. Initially, both door panels 12 and 13 are in a closed state (see FIG. 2), and as described above, the catch 40 that constitutes the self-opening mechanism 100 is attached to the runner 16 attached to each door panel 12 and 13. It is in an engaged state. In this state, the door plates 12 and 13 are held at their respective closed positions.

From this state, when the user applies force in the direction of opening either door plate 12, 13 against the holding force of the catch 40, the runner 16 moves and disengages from the catch 40, causing the runner 16 to move and disengage from the catch 40. , the door panels 12 and 13 are pulled toward the remaining door panels 12 and 13 by the elastic force of the tension spring 17 (see FIG. 3). In this way, the self-opening function of the door panels 12 and 13 can be realized.

Further, since the tension spring 17 constituting the self-opening mechanism 100 is attached directly between the pair of door panels 12 and 13 without using the door frame 11 or the like, for example, one door panel 12 is attached to the remaining door panel 13 side. Both door panels 12 and 13 can be moved together while maintaining the moved open state (state in which both door panels 12 and 13 overlap each other) (see FIG. 6).

(Modification 1)
In the embodiment described above, the catch 40 is used as a member for holding the door plates 12, 13 in the closed position, but the slide assist device 18 may be used instead.

The slide assist device 18 is a device that applies an urging force to the door panels 12 and 13 to cause them to slide in the closing direction. Of course, the biasing force may be applied not only in the closing direction but also in each opening/closing direction. The slide assist device 18 is configured to be able to accumulate or release biasing force in cooperation with a trigger member 24 attached to the rail 14.

For example, as shown in FIG. 7, this slide assist device 18 includes an upper frame body 26 having a U-shaped cross section with an open bottom surface, and a lower frame body 28 having a U-shaped cross section with an open top surface. , a spring member 30 whose one end is fixed to the lower frame body 28, a damper member 32 which is arranged in parallel with the spring member 30 front and back and whose one end is fixed to the lower frame body 28, and the spring member 30 and the damper member 32. A slide member 34 is attached to the other free end and is slidable within the upper frame 26 along its longitudinal direction. Furthermore, a guide roller 36 is provided at one end of the lower frame body 28 in the slide assist device 18 .

This slide assist device 18 is connected to the runner 16 at an end opposite to the side where the guide roller 36 described above is provided.

In addition, in FIG. 7, a pair of spring members 30 are disposed before and after the damper member 32, but other embodiments may also be used, such as disposing one spring member 30 on either the front or rear of the damper member 32. good.

(Operation of self-opening mechanism 100 according to modification 1)
Next, the operation of the self-opening mechanism 100 in the sliding door plate 10 according to the first modification described above will be explained. Initially, the double door plates 12 and 13 are each in a closed state (see FIGS. 8 and 9), and the tension spring 17 constituting the self-opening mechanism 100 is in its longest extended state. In this state, a biasing force in the opening direction is applied to the double door plates 12 and 13 from the tension spring 17, but the slide assist device 18 and the trigger member 24 provided on the double door plates 12 and 13 cooperate with each other. The closed state is maintained.

From this state, when the user pushes one of the door panels 12, 13 in the direction of opening against the holding force of the slide assist device 18, the remaining door panels 12, 13 are moved by the elastic force of the tension spring 17. 13 (see Figure 10). In this way, the self-opening function of the door panels 12 and 13 can be realized.

In addition, also in the first modification, the tension spring 17 constituting the self-opening mechanism 100 is directly attached between the pair of door plates 12 and 13 without intervening the door frame 11 or the like, so it is different from the first embodiment described above. As in the case, for example, one door panel 12 is moved toward the remaining door panel 13 to maintain the open state (both door panels 12 and 13 overlap each other), and both door panels 12 and 13 are moved together. can be done.

(Modification 2)
In the above-described embodiment and modification 1, a "constant force spring" is used as the tension spring 17 constituting the self-opening mechanism 100, but the tension spring 17 is not limited to this, and may be, for example, a simple mainspring. A spring may also be used. However, it is preferable to use a "constant force spring" which always provides a substantially constant pulling force (biasing force) regardless of the length of the extended stroke.

(Modification 3)
Further, in the embodiment and the first modification described above, the attachment position of the tension spring 17 on the door plates 12, 13 is at the upper end of the side surface of each door plate 12, 13. However, the mounting position is not limited to the "upper end of the side surface"; for example, it may be installed at any position in the vertical direction of the side surface, and if possible, the mounting position may be on the top surface of each door panel 12, 13 instead of the side surface. It may also be attached to the bottom or the like.

(Modification 4)
Furthermore, the mounting positions of one end and the other end of the tension spring 17 are the upper end of the side of one door plate 12 on the side far from the other door plate 13, or the side surface of the other door plate 13 on the side far from the one door plate 12. The tension spring 17 is not limited to the upper end, and it is sufficient if one end of the tension spring 17 is attached to one door plate 12 and the other end is attached to the other door plate 13.

For example, as shown in FIG. 11, one end of the tension spring 17 is attached to the upper end of the side of one door panel 12 on the side closer to the other door panel 13, and the other end is attached to the upper end of the side of the other door panel 13 farther from the one door panel 12. It may be attached to the upper end of the side surface. Further, as shown in FIG. 12, one end of the tension spring 17 is attached to the widthwise side surface of one door panel 12 on the side closer to the other door panel 13, and the other end is attached to the side of the other door panel 13 farther from the one door panel 12. It may be attached to the upper end of the side. Of course, the above-mentioned mounting position on one door plate 12 and the mounting position on the other door plate 13 may be reversed.

(Modification 5)
Furthermore, although the catch 40 and the slide assist device 18 were used in the above-described embodiment and modification 1, the catch 40 and the slide assist device 18 are not essential components of the present invention. The assist device 18 may not be provided.

(Modification 6)
In the embodiments and modifications described above, one end and the other end of the tension spring 17 were attached to the door panels 12 and 13, but instead of this, one end of the extension spring 17 was attached to a runner attached to one of the door panels 12. 16, and the other end of the tension spring 17 may be attached to another runner 16 attached to the other door plate 12.

(Modification 7)
Furthermore, in the above-described embodiments and modified examples, the tension spring 17 is attached to the pair of door panels 12 and 13 that can be slid against each other, but instead of this, the tension spring 17 is attached to the pair of door panels 12 and 13 that make up the folding door. One end and the other end of the spring 17 may be attached respectively.

The embodiments disclosed this time should be considered to be illustrative in all respects and not restrictive. The scope of the present invention is indicated by the claims rather than the above description, and it is intended that all changes within the meaning and range equivalent to the claims are included.

DESCRIPTION OF SYMBOLS 10... Sliding door plate, 11... Door frame, 12... Door plate, 13... Door plate, 14... Rail, 16... Runner, 17... Pull spring, 18... Slide assist device, 20... Opening, 22... Runner running surface, 24... Trigger member, 26... Upper frame body, 28... Lower frame body, 30... Spring member, 32... Damper member, 34... Slide member, 36... Guide roller, 40... Catch, 42... Main body part, 44... Locking part, 46...Fixing screw insertion hole, 48...Tip (of locking part 44) 100...Self-opening mechanism

Claims (6)

A self-opening mechanism having a tension spring attached to a pair of door plates that can be slid against each other,
One end of the tension spring is attached to one of the door panels,
The other end of the tension spring is attached to the other door plate. Self-opening mechanism. A self-opening mechanism having a tension spring attached to a pair of door plates that can be slid against each other,
One end of the tension spring is attached to a runner attached to one of the door panels,
The other end of the tension spring is attached to another runner attached to the other door plate. Self-opening mechanism. A self-opening mechanism having a tension spring attached to a pair of door plates constituting a folding door,
One end of the tension spring is attached to an end of one of the door plates on a side far from the other door plate ,
The other end of the tension spring is attached to the end of the other door plate that is far from the one door plate . Self-opening mechanism. The self-opening mechanism according to any one of claims 1 to 3, wherein the tension spring is a constant force spring. The self-opening mechanism according to claim 1 or 2,
A sliding door panel that includes a pair of door panels that can be slid against each other. The self-opening mechanism according to claim 3;
A folding door comprising a pair of door plates that make up the folding door.

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