Damper device with capture mechanism and fitting device

Abstract

To apply resistance to an initial operation, then reduce the resistance.SOLUTION: A damper device with a capturing mechanism comprises a damper mechanism 33, including a fixing part 31 and a movable part 32 provided on the fixing part 31 so as to reciprocate between an initial position and a movement limit position, which applies the resistance to a movement of the movable part 32 in one direction heading from the initial position to the movement limit position. A capturing part 34 that captures a capture target in a detachable manner is provided in the movable part 32. The capturing part 34, while the capture target is captured in the movement limit position, detaches the capture target when a predetermined amount or more of detachment force in the one direction is applied to the capture target.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a damper device with a capture mechanism that applies resistance to the movement of a movable part relative to a fixed part, and to a fitting device equipped with this damper device with a capture mechanism. [Background technology]

[0002] Conventionally, as described in Patent Document 1, for example, there is a type of fitting device that includes a door body (opening / closing body) that rotates to open an opening, a frame body that surrounds the left and right ends and the top end of the door body in a U-shape, and a handle portion that can be placed on for opening and closing operations. In some cases, such fitting devices are provided with a door closer (see Patent Document 2, for example) between the door body and the frame to reduce the impact when the door body is fully closed. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2016-176189 [Patent Document 2] Japanese Patent Application Publication No. 2020-204150 Summary of the Invention [Problem to be solved by the invention]

[0004] However, with the above-mentioned conventional technology, if a door suddenly opens from a closed state while there is a person on the opening side of the door, the door may collide with the person on the opening side. Therefore, a damper device is needed that can provide resistance to the initial sudden opening movement of the door. [Means for solving the problem]

[0005] In view of the above problems, the present invention has the following configuration. a fixed portion; and a movable portion provided on the fixed portion so as to reciprocate between an initial position and a movement limit position, and a damper mechanism that applies resistance to unidirectional movement of the movable portion from the initial position toward the movement limit position, the initial position is a position of the movable part where rearward movement relative to the fixed part is restricted, and the movement limit position is a position of the movable part where forward movement relative to the fixed part is restricted, The movable part is provided with a capturing part that releasably captures the object to be captured, and the capturing part releases the object to be captured when a predetermined or greater force of separation is applied to the object to be captured in one direction while the object to be captured is captured at the movement limit position. The damper mechanism is configured to add resistance to the movement of the movable part in the one direction and to reduce this resistance when the movable part moves in a direction opposite to the one direction. A damper device with a capture mechanism. [Effects of the Invention]

[0006] Since the present invention is configured as described above, it is possible to apply resistance to a sudden movement of an object to be captured within an initial range, and to weaken this resistance when the resistance exceeds the initial range. [Brief explanation of the drawings]

[0007] [Figure 1] 1 is a perspective view showing an example of a fitting device equipped with a damper device with a capture mechanism according to the present invention. [Figure 2] FIG. 2 is an enlarged perspective view of a main part of an example of a damper device with a capture mechanism. [Figure 3] 1A is a plan view of the main part of the fitting device, in which (a) shows the opening / closing body in a fully closed state, (b) shows the opening / closing body in an initial open state, and (c) shows the opening / closing body in a fully open state. [Figure 4] 1A is an enlarged plan view of the main part of the fitting device, in which (a) shows the opening / closing body in a fully closed state, and (b) shows the state immediately after the opening / closing body has been released from the capture portion by the opening operation. DETAILED DESCRIPTION OF THE INVENTION

[0008] This embodiment discloses the following features. The first feature is a damper device with a capture mechanism, comprising a fixed part and a movable part provided on the fixed part so as to reciprocate between an initial position and a movement limit position, and a damper mechanism that applies resistance to unidirectional movement of the movable part from the initial position toward the movement limit position, wherein the movable part is provided with a capture part that captures an object to be captured in a releasable manner, and the capture part releases the object to be captured when a predetermined or greater release force is applied to the object to be captured in the one direction while the object is captured at the movement limit position (see Figures 2 and 4). The "damper mechanism that applies resistance to one-directional movement of a movable part" means that the direction of movement of the movable part to which resistance is applied by the damper mechanism is at least one of the above-mentioned directions. That is, the damper mechanism includes a mechanism that applies resistance only to one-directional movement of the movable part, and a mechanism that applies resistance to one-directional movement of the movable part and movement in the opposite direction of the one-directional movement of the movable part.

[0009] As a second feature, the separation force is greater than the force required to move the movable part from the initial position in the one direction (see FIG. 4).

[0010] As a third feature, the damper mechanism is a mechanism that linearly moves the rod-shaped movable part inserted into the substantially cylindrical movable part (see FIG. 4).

[0011] As a fourth feature, the capture part is a magnet, and captures the capture target, which is a magnetic material, by magnetic attraction (see FIG. 4).

[0012] The fifth feature is a fitting device in which an opening / closing body is rotated to open within a frame body, wherein the damper device with the capture mechanism is provided on one of the members of the frame body and the opening / closing body, and the other member is the object to be captured, and the movable part is in the initial position when the opening / closing body is closed, and the movable part is in the movement limit position when the opening / closing body has opened a predetermined amount from the closing point (see Figures 1 to 4).

[0013] <Specific embodiment> Next, specific embodiments having the above-mentioned features will be described in detail with reference to the drawings. In the following description, the term "visible direction" refers to the width direction (left-right direction) of the frame body. The term "visible direction" refers to the thickness direction of the frame that is approximately perpendicular to the "visible direction."

[0014] FIG. 1 shows an example of a fitting device equipped with an opening resistance adding device according to the present invention. This fitting device 1 comprises a frame body 10 having an opening in the center, an opening / closing body 20 that rotates within the frame body 10 to open or close the opening, and a damper device 30 with a capture mechanism that applies resistance to the initial opening movement of the opening / closing body 20.

[0015] The frame body 10 comprises a door-tail side frame member 11 that faces the door-tail portion of the opening / closing body 20 in the closed state, a door-tip side frame member 12 that faces the door-tip portion of the opening / closing body 20, and an upper frame member 13 that faces the upper end portion of the opening / closing body 20, and is configured in an inverted concave shape when viewed from the front, surrounding a central opening. This frame 10 is fixed to an opening in a wall of a building or the like in which the fitting device 1 is to be installed.

[0016] The lower side of the frame body 10 may be the floor or the ground, or may be a door sill (lower frame member) or the like extending between the lower end portions of the trailing edge side frame member 11 and the leading edge side frame member 12. The door-end side frame member 12 is provided with a door stop portion 12a (see Figs. 2 to 4) having a substantially stepped cross section that receives the opening / closing body 20 when fully closed.

[0017] The opening / closing body 20 is formed in a rectangular shape when viewed from the front and has a predetermined thickness. This opening / closing body 20 is an object to be captured by the damper device 30 with a capturing mechanism, which will be described later, and the part that is magnetically attracted by the capturing portion 34 of the damper device 30 with a capturing mechanism (in the illustrated example, the outer panel 22 on the closing direction side) is made of a magnetic material.

[0018] It is sufficient that at least the outer plate 22 on the closing direction side of the opening-closing body 20 is made of a magnetic material. That is, the outer plate 22 on the opposite side and the internal framework may be made of a magnetic material or a non-magnetic material. As another example, the outer plate on the closing direction side of the opening-closing body 20 may be made of a non-magnetic material, and a member made of a magnetic material may be fixed to the surface of this outer plate.

[0019] A handle portion 21 is provided on the front and back surfaces of the opening / closing body 20 on the door edge side, near the center in the vertical direction. This handle 21 is a rotatable doorknob, and when rotated, a latch (not shown) appears and disappears from the door edge surface of the opening / closing body 20. This latch fits into and disengages from a latch receiver (not shown) on the door edge side frame member 12.

[0020] If necessary, a locking mechanism (not shown) may be provided in the opening / closing body 20. This locking mechanism engages and disengages a deadbolt, which is extended and retracted by operating a thumb turn or key, into and from a recessed seat (not shown) in the door-end frame member 12.

[0021] The trailing edge portion of the opening / closing body 20 is rotatably connected to the trailing edge frame member 11 via a hinge 23 (see FIG. 3). The hinge 23 in the illustrated example is a pivot hinge, and is provided between the upper end side of the opening / closing body 20 and an immovable part such as the upper frame member 13, or between the lower end side of the opening / closing body 20 and an immovable part such as the floor. The hinge 23 can be replaced with a type other than the illustrated example, such as a flat hinge or a flag hinge.

[0022] The opening / closing body 20 configured as described above rotates about the hinge 23 between a fully closed position where the opening in the frame body 10 is substantially fully closed and a fully open position where the opening is substantially fully opened (see FIG. 3).

[0023] The damper device 30 with a capture mechanism comprises a fixed part 31 fixed to the frame body 10, and a movable part 32 provided on the fixed part 31 so as to move back and forth between an initial position (Figure 4(a)) and a movement limit position (Figure 4(b)), and also comprises a damper mechanism 33 that applies resistance to the unidirectional movement of the movable part 32 from the initial position toward the movement limit position, and a capture part 34 provided on the movable part 32 that detachably captures an object to be captured (in the illustrated example, the opening / closing body 20).

[0024] Here, the "initial position" refers to a position of the movable part 32 where the rearward movement relative to the fixed part 31 is restricted. According to this embodiment, in this initial position, 、 The movable part 32 is substantially housed within the fixed part 31 (see FIG. 4(a)). The "movement limit position" is a position of the movable part 32 where forward movement relative to the fixed part 31 is restricted. According to this embodiment, at this movement limit position, the movable part 32 protrudes forward from the fixed part 31 (see FIG. 4(b)).

[0025] The fixing portion 31 is a substantially bottomed tubular (or, in other words, cylindrical) member having one end formed in a flange shape and the other end formed with a bottom.

[0026] The movable part 32 is a long, generally rod-shaped member that moves back and forth with one end inserted into the flange-shaped part of the fixed part 31. The tip side of this movable part 32 is exposed to the outside from the fixed part 31, and the capture part 34 is provided on this exposed part.

[0027] The damper mechanism 33 is provided inside the fixed part 31 and is configured to add resistance to the linear movement of the movable part 32 in the forward direction and to reduce this resistance when the movable part 32 moves backward. This damper mechanism 33 may be, for example, a mechanism in which a viscous fluid (oil or the like) sealed in the fixed part 31 passes through an orifice as the movable part 32 advances, thereby applying resistance to the movable part 32. For example, a well-known extension damper or other structure can be applied to this damper mechanism 33.

[0028] When the capture unit 34 captures the object to be captured (opening / closing body 20) at the limit of movement position (see Figure 4(a)), it releases the object to be captured (opening / closing body 20) when a predetermined or greater release force is applied to the object to be captured (opening / closing body 20) in one direction (in the illustrated example, the opening direction). According to a preferred example of this embodiment, the capture portion 34 is a magnet (permanent magnet) that can capture the capture target (opening / closing body 20), which is a magnetic material, by magnetic attraction.

[0029] The separation force is greater than the force required to move the movable part 32 forward from its initial position (see Figure 4(a)), and is a force capable of separating the magnetically adsorbed capture target (opening / closing body 20) from the capture part 34, which is a magnet.

[0030] Next, the characteristic actions and effects of the fitting device 1 and the damper device 30 with a capture mechanism having the above-mentioned configuration will be described in detail. When the door is fully closed and the door front side of the opening / closing body 20 approaches or comes into contact with the door stop portion 12a, the movable portion 32 is magnetically attracted to the opening / closing body 20 and is in an initial position approximately stored within the fixed portion 31 (Figures 2, 3(a) and 4(a)).

[0031] In this state, when the opening / closing body 20 rotates in the opening direction, the movable part 32 moves forward together with the opening / closing body 20. Therefore, the opening / closing body 20 opens slowly while receiving resistance from the damper mechanism 33. Therefore, for example, if there is a person immediately on the opening side of the opening / closing body 20, the person will be able to notice the initial opening movement of the opening / closing body 20 and move away so as not to come into contact with the opening / closing body 20.

[0032] The movable portion 32 reaches the movement limit position when the opening / closing body 20 opens a predetermined amount from the fully closed position. At this movement limit position, the rotational force acting on the opening / closing body 20 in the opening direction continues, and if this rotational force is greater than the adhesive force between the opening / closing body 20 and the capture part 34, the opening / closing body 20 will detach from the capture part 34. After this detachment, the opening operation of the opening / closing body 20 is not resisted by the damper device with capture mechanism 30, so the opening / closing body 20 can be opened with a relatively small force.

[0033] Furthermore, when the opening / closing body 20 is closed from a position away from the capture part 34, the opening / closing body 20 is magnetically attracted to the capture part 34 during its rotation in the closing direction, and the closing operation of the opening / closing body 20 and the retreat of the capture part 34 proceed simultaneously. Then, the opening / closing body 20 reaches the fully closed position at approximately the same time that the capture part 34 reaches its initial position.

[0034] In the closing operation, after the opening / closing body 20 is magnetically attracted to the capture part 34, resistance is applied to the closing rotation of the opening / closing body 20 as the capture part 34 moves backward. This resistance can therefore mitigate the impact when the opening / closing body 20 is fully closed. Note that this resistance is smaller than the resistance caused by the forward movement of the capture part 34.

[0035] <Modification> The damper mechanism 33 in the above embodiment is configured to apply resistance to the forward movement of the movable part 32 and to reduce this resistance when the movable part 32 moves backward. However, as another example of this damper mechanism 33, it is also possible to apply a configuration that applies the same degree of resistance to both the forward and backward movements of the damper mechanism 33 (for example, a structure such as a well-known bidirectional damper).

[0036] Furthermore, the damper device with capture mechanism 30 in the above embodiment is configured so that the movable part 32 moves linearly relative to the fixed part 31, but other examples of this damper device with capture mechanism include one in which the movable part moves curvedly relative to the fixed part, or one in which the movable part rotates relative to the fixed part.

[0037] Furthermore, in the above embodiment, the capture portion 34 is a magnet, but as another example of this capture portion, it is also possible to configure it as a suction cup that adsorbs the object to be captured (in the illustrated example, the outer panel 22 on the closing direction side) in a detachable manner. Furthermore, as another example of the capture part, it is possible to have an engaged part provided on the object to be captured and an elastic engaging part provided on the movable part, and the elastic engaging part elastically deforms to engage and disengage with the engaged part.

[0038] Furthermore, in the above embodiment, the damper device with a capture mechanism 30 having the above configuration is applied to a door device, but the basic structure of the damper device with a capture mechanism 30 can be applied to any device that operates an opening / closing body relative to an immovable part, and for example, it can be installed between an immovable part and an opening / closing body (including a door body or fitting) that rotates relative to the immovable part in a folding door device, a balance door device, an opening / closing window, etc. Furthermore, the basic structure of the damper device 30 with a capture mechanism can also be provided between a fixed portion and an opening / closing body that moves relative to the fixed portion in a sliding door device or other opening / closing device.

[0039] Furthermore, according to the above embodiment, resistance is applied by the damper device 30 with a capture mechanism to the opening operation of the opening / closing body within an initial range, and the resistance is released when the initial range is exceeded. However, as another example, it is also possible to apply resistance by the damper device 30 with a capture mechanism to the closing operation of the opening / closing body within an initial range, and the resistance is released when the initial range is exceeded.

[0040] The present invention is not limited to the above-described embodiments, and can be modified as appropriate within the scope of the present invention. [Explanation of symbols]

[0041] 1: Door and window equipment 10:Frame body 12: Door end frame member 20: Opening and closing body (capture target) 22: Outer panel 30: Damper device with capture mechanism 31: Fixed part 32: Moving part 33: Damper mechanism 34: Capture unit

Claims

1. a fixed portion; and a movable portion provided on the fixed portion so as to reciprocate between an initial position and a movement limit position, and a damper mechanism that applies resistance to unidirectional movement of the movable portion from the initial position toward the movement limit position, the initial position is a position of the movable part where rearward movement relative to the fixed part is restricted, the movement limit position is a position of the movable part where forward movement relative to the fixed part is restricted, The movable part is provided with a capture part that releasably captures an object to be captured, the capturing unit releases the object to be captured when a release force equal to or greater than a predetermined value is applied to the object to be captured in the one direction while the object to be captured is captured at the movement limit position; A damper device with a capture mechanism, characterized in that the damper mechanism is configured to add resistance to movement of the movable part in the one direction and to reduce this resistance when the movable part moves in a direction opposite to the one direction.

2. 2. The damper device with a capture mechanism according to claim 1, wherein the separation force is greater than the force required to move the movable part from the initial position in the one direction.

3. 3. The damper device with a capture mechanism according to claim 1, wherein the damper mechanism is a mechanism for linearly moving the rod-shaped movable part inserted into the substantially cylindrical movable part.

4. 4. The damper device with a capture mechanism according to claim 1, wherein the capture portion is a magnet, and captures the object to be captured, which is a magnetic material, by magnetic attraction.

5. A fitting device in which an opening and closing body is rotated to open within a frame body, The damper device with a capture mechanism according to any one of claims 1 to 4 is provided on one of the frame body and the opening / closing body, and the other member is the object to be captured, A fitting device characterized in that the movable part is in the initial position when the opening / closing body is closed, and the movable part is in the movement limit position when the opening / closing body has opened a predetermined amount from the closing point.

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