JP6936920B2 - Crosa - Google Patents

Description

The present invention relates to a closer that pulls an opening / closing body such as a sliding door or a drawer into a closing position and / or an opening position.

Closers are known that pull an opening / closing body such as a sliding door or a drawer into a closed position and / or an open position. A closer is attached to either the opening / closing body or the frame surrounding the opening / closing body. A trigger is attached to the other side of the opening / closing body and the frame. When the opening / closing body is moved to a predetermined position, the closer catches the trigger, and the closer pulls the opening / closing body into the closing position and / or the opening position.

As described in Patent Document 1, the closer includes a case, a slider that is movable relative to the case, and a spring that urges the slider. The slider has an engaging portion that engages the case so that the slider can be held in the standby position against the urging force of the spring. Further, the slider has a control unit capable of controlling the position of the engaging portion.

In the closer described in Patent Document 1, the engagement between the engaging portion and the case is disengaged as follows. That is, when the sliding door is moved to the trigger position, the control unit is pushed by the trigger and moves. The control unit and the engaging unit are interlocked with each other, and when the control unit moves, the engaging unit also moves. By moving the engaging portion, the engagement between the engaging portion and the case is released.

Japanese Unexamined Patent Publication No. 2012-158957

However, in the closer described in Patent Document 1, when the sliding door is half-opened (that is, the slider has not yet captured the trigger) and the sliding door is impacted, the slider and the case are not engaged with each other. There is a problem that it comes off easily. The cause is that the control unit and the engaging unit are always linked, and both move at the same time due to an impact.

If the slider and the case are inadvertently disengaged, the urging force of the spring will cause the slider to move relative to the case, even though the slider has not captured the trigger. Therefore, the sliding door cannot be retracted.

Therefore, an object of the present invention is to provide a closer that can prevent the slider from being inadvertently disengaged from the case.

In order to solve the above problems, one aspect of the present invention includes a case, a slider that can move relative to the case, and a spring that urges the slider, and the slider is the spring. The engaging portion that engages with the case and the slider move relative to the case while the trigger is captured so that the slider can be held in the standby position against the urging force of the case. In a closer having a control unit that is pushed by the trigger to move and disengage the engagement portion from the case, the control unit is at an initial position not pressed by the trigger. The engagement between the engaging portion and the case is prevented from being disengaged, and the control portion is pushed by the trigger between the control portion and the engaging portion, and a predetermined amount is determined from the initial position. A gap is provided so that the control unit and the engagement unit do not interlock with each other even when the control unit is moved , the slider has a slider body, and the control unit is attached to the slider body in the length direction of the case. A closer that is slidably supported.
Another aspect of the invention comprises a case, a slider that is movable relative to the case, and a spring that urges the slider, wherein the slider resists the urging force of the spring. The engaging portion that engages the case and the trigger are pushed so that the slider moves relative to the case while the trigger is captured so that the slider can be held in the standby position. In a closer having a control unit that moves and disengages the engagement portion from the case, the control unit is in an initial position that is not pressed by the trigger, and the engagement portion and the case. Even if the control unit is pushed by the trigger and moves by a predetermined amount from the initial position between the control unit and the engagement unit, the control is prevented. A gap is provided so that the portion and the engaging portion do not interlock, and the length of the gap in the moving direction of the control portion is longer than the overlapping length of the controlling portion and the engaging portion in the moving direction. Closer.
Yet another aspect of the invention comprises a case, a slider that is movable relative to the case, and a spring that urges the slider, the slider resisting the urging force of the spring. The slider is pushed by the trigger so that the engaging portion engaged with the case and the slider move relative to the case while the trigger is captured so that the slider can be held in the standby position. In a closer having a control unit that moves and disengages the engagement portion from the case, the control unit is in an initial position that is not pressed by the trigger, and the engagement portion and the engagement portion are disengaged. It prevents the engagement with the case from being disengaged, and even if the control unit is pushed by the trigger and moves by a predetermined amount from the initial position between the control unit and the engagement unit, the said A gap is provided so that the control unit and the engaging portion do not interlock, and the engaging portion is rotatably supported by the slider via a shaft, and the engaging portion is viewed in the axial direction of the shaft. The control unit has a long side portion and a short side portion and is substantially L-shaped, and the control unit is a closer that abuts on the short side portion of the engaging portion and rotates the engaging portion.

According to the present invention, it is possible to prevent the slider from being inadvertently disengaged from the case.

It is a front view of the sliding door system in which the closer of one embodiment of the present invention is incorporated (FIG. 1 (a) shows a half-open position of the sliding door, FIG. 1 (b) shows a closed position of the sliding door, and FIG. 1 (c) shows. Indicates the opening position of the sliding door). It is an exploded perspective view of the closer of this embodiment. It is an exploded perspective view of the slider of this embodiment. It is an operation diagram of the slider of this embodiment (FIG. 4 (a) shows the initial position of a control part, and FIG. 4 (b) shows the disengagement position of a control part). FIG. 5 (a) is an operation diagram of the slider of the present embodiment (FIG. 5 (a) shows a state in which the control unit of the slider is in contact with the trigger, and FIG. 5 (b) shows a state in which one slider is in the retracted position. 5 (c) indicates a state in which the other slider is in the retracted position).

Hereinafter, the closer according to the embodiment of the present invention will be described in detail with reference to the accompanying drawings. However, the closer of the present invention can be embodied in various forms, and is not limited to the embodiments described in the present specification. The present embodiment is provided with the intention of allowing those skilled in the art to fully understand the scope of the invention by adequately disclosing the specification.

FIG. 1 shows a sliding door system incorporating a closer according to an embodiment of the present invention. FIG. 1 (a) shows the half-opening position of the sliding door, FIG. 1 (b) shows the closing position of the sliding door, and FIG. 1 (c) shows the opening position of the sliding door. 1 is a sliding door, 2 is a rail attached to a frame (not shown), 3a and 3b are triggers attached to the rail 2, 4 is a closer, and 5a and 5b are roller units on which the sliding door 1 is suspended. The roller units 5a and 5b travel in the rail 2. The closer 4 moves in the rail 2 together with the roller units 5a and 5b.

The closer 4 has a function of pulling the sliding door 1 to the door end side (closed position) and also has a function of pulling the sliding door 1 to the door end side (opening position). As shown in FIG. 1A, when the sliding door 1 in the half-open position is moved in the closing direction, the slider 7a (see FIG. 2) of the closer 4 catches the trigger 3a on the door end side. Then, as shown in FIG. 1B, the closer 4 pulls the sliding door 1 to the closed position. On the other hand, when the sliding door 1 at the half-open position shown in FIG. 1A is moved in the opening direction, the slider 7b (see FIG. 2) of the closer 4 catches the trigger 3b on the door tail side. Then, as shown in FIG. 1 (c), the closer 4 pulls the sliding door 1 to the opening position.

FIG. 2 shows an exploded perspective view of the closer 4. 6 is a case, 7a and 7b are sliders, 8a and 8b are springs, and 9 is a damper. The case 6 extends in one direction, that is, in the opening / closing direction of the sliding door 1. Two sliders 7a and 7b are housed in the case 6 so as to be movable in the length direction of the case 6. The movement of the sliders 7a and 7b is guided by the case 6.

The case 6 includes a case body 6a having a U-shaped cross section and plates 6b, 6c, 6d attached to the bottom of the case body 6a. The plates 6b, 6c, 6d are made of resin and are provided to improve the sliding of the sliders 7a, 7b.

The plate 6b is formed with a recess 14a with which the engaging portion 11a of the slider 7a is engaged. Further, the plate 6b is integrally formed with a lid portion 15a that closes the end portion of the case body 6a in the length direction. A roller unit 5a (see FIG. 1A) from which the sliding door 1 is suspended is connected to the plate 6b via a lid portion 15a.

The plate 6d is formed with a recess 14b with which the engaging portion 11b of the slider 7b is engaged. Further, the plate 6d is integrally formed with a lid portion 15b that closes the end portion of the case body 6a in the length direction. A roller 5c (see also FIG. 1A) is connected to the plate 6d via a lid portion 15b. The plate 6c is arranged between the plate 6b and the plate 6d.

The sliders 7a and 7b include slider bodies 12a and 12b, engaging portions 11a and 11b, and control units 13a and 13b. A box-shaped damper accommodating portion 16 for accommodating the main body portion 9a of the damper 9 is integrally formed on the slider main body 12a. The slider main body 12b is not provided with the damper accommodating portion 16. The shaft portion 9b of the damper 9 comes into contact with the slider body 12b.

Hook-shaped engaging portions 11a and 11b are rotatably supported on the slider bodies 12a and 12b via shafts 17a and 17b. Further, the control units 13a and 13b are supported on the slider bodies 12a and 12b so as to be movable in the length direction of the case 6. Between the control units 13a and 13b and the slider main bodies 12a and 12b, a return spring 18a. 18b intervenes. The detailed configurations of the slider bodies 12a and 12b, the engaging portions 11a and 11b, and the control units 13a and 13b will be described later.

One end of the spring 8a that urges the slider 7a is connected to the slider body 12a, and the other end is connected to the lid 15b of the plate 6d. One end of the spring 8b that urges the slider 7b is connected to the slider body 12b, and the other end is connected to the lid 15a of the plate 6b. The springs 8a and 8b urge the sliders 7a and 7b in the contraction direction thereof.

The damper 9 is hung between the two sliders 7a and 7b. The damper 9 decelerates the sliders 7a and 7b to alleviate the impact when the sliding door 1 closes and opens.

FIG. 3 shows an exploded perspective view of the slider 7a. The slider body 12a has a pair of side walls 21a and 21b facing each other. A shaft 17a is attached to the side walls 21a and 21b. The engaging portion 11a is rotatably supported between the pair of side walls 21a and 21b via a shaft 17a. Guide protrusions 22a and 22b for guiding the movement of the control unit 13a are provided on the upper portions of the pair of side walls 21a and 21b.

The engaging portion 11a is substantially L-shaped in the axial direction of the shaft 17a (as viewed as shown in FIG. 4), and has a short side portion 23 and a long side portion 24. The long side portion 24 is formed with an engaging protrusion 25 that engages with the recess 14a of the plate 6b. Further, on the long side portion 24, a catching projection 26 having a substantially T-shape in front view for catching the trigger 3a is formed. A hook body 27 that bends at an acute angle is formed at the tip of the long side portion 24.

The control unit 13a has a substantially quadrangular plate shape. The control unit 13a is formed with embracing portions 31a and 31b having grooves (not shown) into which the guide projections 22a and 22b of the slider main body 12a are fitted. The control unit 13a slides the upper surface of the slider body 12a in the length direction of the case 6. The movement of the control unit 13a is guided by the slider body 12a. The control unit 13a is formed with a quadrangular opening 32 into which the short side portion 23 of the engaging portion 11a fits with play. At the tip of the control unit 13a, bifurcated limiting protrusions 33a and 33b are formed that come into contact with the catching protrusions 26 of the engaging parts 11a.

FIG. 4 shows a cross-sectional view of the slider 7a along the length direction of the case 6. FIG. 4A shows the initial position of the control unit 13a, and FIG. 4B shows the disengagement position of the control unit 13a. The control unit 13a is pushed by the trigger 3a (see also FIG. 1A) and moves from the initial position to the disengagement position. A return spring 18a is interposed between the control unit 13a and the slider body 12a. The control unit 13a, which is not pressed by the trigger 3a, is returned to the initial position by the return spring 18a.

As described above, the control unit 13a is provided with limiting protrusions 33a and 33b that limit the rotation of the engaging portion 11a. At the initial position of the control unit 13a shown in FIG. 4A, even if the engaging portion 11a tries to rotate, the limiting projections 33a and 33b of the control unit 13a come into contact with the engaging portion 11a to rotate the engaging portion 11a. Restrict. Therefore, the engagement between the engaging portion 11a and the case 6 is maintained. The control unit 13a and the engagement unit 11a overlap in the moving direction of the control unit 13a and have a length L1. While the control unit 13a overlaps from the initial position and moves by the length L1, the rotation of the engaging portion 11a so as to be disengaged is restricted, and the engagement between the engaging portion 11a and the case 6 is maintained.

A gap 34 is provided between the control unit 13a and the engagement unit 11a so that the control unit 13a and the engagement unit 11a do not interlock even if the control unit 13a is pushed by the trigger 3a and moves from the initial position. Provided. The length L2 of the gap 34 in the moving direction of the control unit 13a is longer than the overlapping length L1.

As shown in FIG. 4B, when the control unit 13a moves from the initial position to the length L2 or more of the gap 34, the control unit 13a comes into contact with the short side portion 23 of the engaging portion 11a and the engaging portion 11a comes into contact with the engaging portion 11a. Rotate. As a result, the engagement between the engaging portion 11a and the case 6 is released. Further, the trigger 3a is captured between the capturing projection 26 of the engaging portion 11a and the control portion 13a.

Since the configurations of the slider body 12b, the engaging portion 11b, and the control unit 13b of the slider 7b are the same as those of the slider body 12a, the engaging portion 11a, and the control unit 13a of the slider 7a, detailed description thereof will be omitted.

The operation of the closer 4 will be described with reference to FIG. FIG. 5 shows a cross-sectional view of the closer 4 along the length direction. As shown in FIG. 5A, first, the sliders 7a and 7b are in a standby position where the engaging portions 11a and 11b engage with the recesses 14a and 14b of the case 6. At this time, the springs 8a and 8b (see FIG. 2) are extended, and the urging forces of the springs 8a and 8b act on the sliders 7a and 7b.

As shown in FIG. 5A, when the closer 4 is moved in the closing direction and the control unit 13a of the slider 7a is brought into contact with the trigger 3a, the control unit 13a is pushed by the trigger 3a and moves. When the control unit 13a moves, as shown in FIGS. 4A and 4B, the engagement between the engaging portion 11a and the case 6 is released, and the trigger 3a is moved between the engaging portion 11a and the control unit 13a. Be captured.

Here, since the urging force of the spring 8a acts on the slider 7a, when the engagement between the slider 7a and the case 6 is released, the slider 7a triggers the trigger 3a as shown in FIG. 5B. In the captured state, it is pulled in to the pull-in position in the length direction of the case 6. As the slider 7a is pulled in, the sliding door 1 is also pulled in to the closed position.

Next, when the sliding door 1 in the closed position is opened, the slider 7a in the retracted position shown in FIG. 5 (b) moves to the standby position shown in FIG. 5 (a). As the slider 7a moves, the engaging portion 11a of the slider 7a engages with the case 6 again, and the slider 7a is held in the standby position. The engaging portion 11a is urged counterclockwise by the return spring 18a via the control portion 13a, and engages with the case 6 by the return spring 18a.

In the closer 4 of the present embodiment, although the possibility of malfunction is low, if the control unit 13a is pushed by something other than the trigger 3a, the engagement portion 11a and the case 6 are disengaged. Even in this case, if the sliding door 1 is moved to the closed position, the hook body 27 of the engaging portion 11a is elastically deformed to capture the trigger 3a. When the sliding door 1 in the closed position is opened after the hook body 27 catches the trigger 3a, the slider 7a moves to the standby position shown in FIG. 5A, and the engaging portion 11a of the slider 7a engages with the case 6 again. It fits.

When the closer 4 is moved in the opening direction, the slider 7b operates in the same manner as the slider 7a, as shown in FIG. 5C. Since the operation of the slider 7b is the same as the operation of the slider 7a, detailed description thereof will be omitted.

The closer 4 of the present embodiment has been described above. According to the closer 4 of the present embodiment, the following effects are obtained.

The control units 13a and 13b prevent the engaging portions 11a and 11b from being disengaged from the case 6 at their initial positions. Further, even if the control units 13a and 13b are pushed by the triggers 3a and 3b and move by a predetermined amount from the initial position between the control units 13a and 13b and the engagement units 11a and 11b, the control units 13a and 13b and the control units 13a and 13b A gap 34 is provided so that the engaging portions 11a and 11b do not interlock. Therefore, even if an impact is applied to the sliding door 1, it is possible to prevent the engaging portions 11a and 11b from being inadvertently disengaged from the case 6.

Since the length L2 of the gap 34 between the control units 13a and 13b and the engaging portions 11a and 11b is longer than the overlapping length L1 between the control units 13a and 13b and the engaging portions 11a and 11b, the control unit 13a , 13b are moved from the initial position to the overlapping length L1 or more, and after the engaging portions 11a and 11b are in a state where they can rotate, the engaging portions 11a and 11b are interlocked with the control units 13a and 13b. Therefore, the operation of the engaging portions 11a and 11b is stable.

Since the triggers 3a and 3b are sandwiched between the engaging portions 11a and 11b and the control units 13a and 13b and the control units 13a and 13b are urged by the return springs 18a and 18b, the engaging portions 11a and 11b and the control unit 13a , 13b and the triggers 3a and 3b can be captured without a gap.

Since the control units 13a and 13b abut on the short side portions 23 of the engaging portions 11a and 11b to rotate the engaging portions 11a and 11b, even if the amount of movement of the control units 13a and 13b is small, the engaging portions 11a, The engagement between 11b and the case 6 can be released.

The present invention is not limited to the above embodiment, and can be embodied in various embodiments without changing the gist of the present invention.

In the above embodiment, the case is provided with two sliders so that the sliding door can be retracted in the closing direction and the opening direction. However, the case is set to 1 so that the sliding door can be retracted in only one of the closing direction and the opening direction. It is also possible to provide only one slider.

In the above embodiment, the engaging portion is rotatably provided on the case, but the engaging portion can also be slidably provided on the case.

This specification is based on Japanese Patent Application No. 2018-132109 filed on July 12, 2018. All this content is included here.

3a, 3b ... Trigger 4 ... Closer 6 ... Case 7a, 7b ... Slider 8a, 8b ... Spring 11a, 11b ... Engaging portion 13a, 13b ... Control unit 14a, 14b ... Case recess 17a, 17b ... Shaft 18a, 18b ... Return spring 23 ... Short side 24 ... Long side 34 ... Gap

Claims (4)

With the case
A slider that can be moved relative to the case,
A spring that urges the slider, and
The slider
An engaging portion that engages with the case so that the slider can be held in the standby position against the urging force of the spring.
A control unit that is pushed by the trigger to move so that the slider moves relative to the case while the trigger is captured, and a control unit that disengages the engaging portion from the case. In a closer with
The control unit prevents the engagement portion from being disengaged from the case at the initial position where the trigger is not pressed.
There is a gap between the control unit and the engagement unit so that the control unit and the engagement unit do not interlock even if the control unit is pushed by the trigger and moves by a predetermined amount from the initial position. Is provided ,
The slider has a slider body and has a slider body.
The control unit is a closer that is slidably supported by the slider body in the length direction of the case. With the case
A slider that can be moved relative to the case,
A spring that urges the slider, and
The slider
An engaging portion that engages with the case so that the slider can be held in the standby position against the urging force of the spring.
A control unit that is pushed by the trigger to move so that the slider moves relative to the case while the trigger is captured, and a control unit that disengages the engaging portion from the case. In a closer with
The control unit prevents the engagement portion from being disengaged from the case at the initial position where the trigger is not pressed.
There is a gap between the control unit and the engagement unit so that the control unit and the engagement unit do not interlock even if the control unit is pushed by the trigger and moves by a predetermined amount from the initial position. Is provided ,
A closer in which the length of the gap in the moving direction of the control unit is longer than the overlapping length of the control unit and the engaging portion in the moving direction . A return spring for returning the control unit to the initial position is provided between the control unit and the engagement unit.
The closer according to claim 1 or 2, wherein the trigger is sandwiched between the engaging portion and the controlling portion. With the case
A slider that can be moved relative to the case,
A spring that urges the slider, and
The slider
An engaging portion that engages with the case so that the slider can be held in the standby position against the urging force of the spring.
A control unit that is pushed by the trigger to move so that the slider moves relative to the case while the trigger is captured, and a control unit that disengages the engaging portion from the case. In a closer with
The control unit prevents the engagement portion from being disengaged from the case at the initial position where the trigger is not pressed.
There is a gap between the control unit and the engagement unit so that the control unit and the engagement unit do not interlock even if the control unit is pushed by the trigger and moves by a predetermined amount from the initial position. Is provided ,
The engaging portion is rotatably supported by the slider via a shaft.
The engaging portion has a long side portion and a short side portion and is substantially L-shaped in the axial direction of the shaft.
The control unit is a closer that abuts on the short side of the engaging portion and rotates the engaging portion.

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