Motion resistance adding device and fitting device equipped with this motion resistance adding device

Abstract

To add resistance to an opening operation in an initial operation range of an opening / closing body.SOLUTION: An operation resistance adding device 30 attached to a fitting device 1 that opens / closes an opening / closing body 20 adds a first resistance to an operation within a prescribed initial operation range when the opening / closing body 20 starts the operation, and decreases the first resistance when the opening / closing body 20 operates beyond the initial operation range.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a motion resistance adding device that is attached to a fitting device that opens and closes an opening, and to a fitting device that includes this motion resistance adding device. [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. [Prior art documents] [Patent documents]

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

[0004] However, according to the above-described conventional technology, if the opening / closing body is suddenly opened while there is a person on the opening side of the opening / closing body, there is a risk that the opening / closing body may come into contact with the person on the opening side. [Means for solving the problem]

[0005] In view of the above problems, the present invention has the following configuration. A motion resistance adding device attached to a fitting device that opens and closes an opening and closing body, The opening / closing body is a door body that rotates to open, The opening and closing body The opening Within a predetermined initial operating range when the operation is started, open A first resistance is applied to the operation, and the first resistance is weakened when the opening / closing body is operated beyond the initial operating range. The opening / closing device includes an engaged portion fixed to one of the opening / closing body and an immovable portion that is immovable relative to the opening / closing body, and an engaging portion fixed to the other of the engaged portion, and when the opening / closing body is in the initial operating range, the engaging portion comes into contact with the engaged portion from a non-contact state and receives the first resistance, and when the opening / closing body operates beyond the initial operating range, the engaging portion moves away from the engaged portion and is released from the first resistance, and the initial operating range is a rotation range of the opening / closing body when the opening / closing body rotates from a fully closed position until the engaging portion disengages from the engaged portion. A dynamic resistance adding device characterized by: The present invention also has the following configuration. A motion resistance adding device is attached to a fitting device that opens and closes an opening / closing body, and adds a first resistance to the movement within a predetermined initial movement range when the opening / closing body starts to move, and weakens this first resistance when the opening / closing body moves beyond the initial movement range. The device comprises an engaged part fixed to one of the opening / closing body and an immovable part that is immovable relative to the opening / closing body, and an engaging part fixed to the other of the opening / closing body. When the opening / closing body is in the initial movement range, the engaging part comes into contact with the engaged part and receives the first resistance, and the initial movement is weakened. a door body that opens and closes when the opening / closing body is operated beyond its operating range, the engaging portion separates from the engaged portion and is released from the first resistance, and the opening / closing body rotates to open and close, the engaged portion has an engaged protrusion that protrudes toward the engaging portion, and the engaging portion has an elastic protrusion that is located on the door end side of the engaged protrusion when the opening / closing body is in the fully closed position, and when the opening / closing body operates to open from the fully closed position, the elastic protrusion abuts against the engaged protrusion and elastically deforms to overcome the engaged protrusion. [Effects of the Invention]

[0006] Since the present invention is configured as described above, it is possible to apply resistance to the movement of the opening / closing body in the initial movement range, thereby preventing the opening / closing body from suddenly moving. [Brief explanation of the drawings]

[0007] [Figure 1] 1 is a perspective view showing an example of a fitting device equipped with a motion resistance adding device according to the present invention. [Figure 2] FIG. [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] This is an enlarged plan view of the main parts of the same building fixture device, where (a) shows the opening / closing body in a fully closed state, (b) shows the state in which the engaging part comes into contact with the engaged part and is elastically deformed due to the initial opening movement of the opening / closing body, and (c) shows the state immediately after the engaging part has disengaged from the engaged part due to the opening movement of the opening / closing body. [Figure 5] This is an enlarged plan view of the main parts of the same building fixture device, where (a) shows the state in which the engaging part approaches the engaged part due to the closing operation of the opening / closing body, (b) shows the state in which the engaging part comes into contact with the engaged part and is elastically deformed due to the closing operation of the opening / closing body, and (c) shows the state in which the opening / closing body is fully closed. DETAILED DESCRIPTION OF THE INVENTION

[0008] This embodiment discloses the following features. The first feature is an operation resistance adding device that is attached to a fitting device that opens and closes an opening / closing body, and adds a first resistance to the operation within a predetermined initial operation range when the opening / closing body starts to operate, and weakens this first resistance when the opening / closing body operates beyond the initial operation range (see Figures 1 to 5). Here, the opening and closing operation includes opening and closing operation by rotation, opening and closing operation by sliding like a sliding door, and the like. The operation of the opening / closing body may be an opening operation of the opening / closing body, or a closing operation of the opening / closing body.

[0009] As a second feature, the resistance when the opening / closing body moves from outside the initial operating range to inside the initial operating range is set as a second resistance, and this second resistance is smaller than the first resistance (see Figure 5).

[0010] A third feature is that the opening / closing body has an engaged portion fixed to one of the opening / closing body and an immovable portion that is immovable relative to the opening / closing body, and an engaging portion fixed to the other of the opening / closing body. When the opening / closing body is in the initial operating range, the engaging portion comes into contact with the engaged portion and receives the first resistance, and when the opening / closing body operates beyond the initial operating range, the engaging portion moves away from the engaged portion and is released from the first resistance (see Figure 4).

[0011] As a fourth feature, the opening / closing body is a door body that rotates to open and close, the engaged portion has an engaged protrusion that protrudes toward the engaging portion, and the engaging portion has an elastic protrusion that is located on the door tail side of the engaged protrusion when the opening / closing body is in the fully closed position, and when the opening / closing body performs an opening operation from the fully closed position, the elastic protrusion abuts against the engaged protrusion, elastically deforms, and overcomes the engaged protrusion (see Figure 4).

[0012] As a fifth feature, when the opening / closing body performs a closing operation from outside the initial operating range, the elastic protrusion abuts against the engaged protrusion, elastically deforms, and overcomes the engaged protrusion (see Figure 5).

[0013] The sixth feature is that one of the engaged portion and the engaging portion is attached to the outer surface of the door trailing edge side of the opening / closing body, and the other is attached to a fixed portion (see FIG. 1).

[0014] As a seventh feature, the motion resistance adding device is provided on the door trailing edge side of the opening / closing body and near the upper end (see FIG. 1).

[0015] <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."

[0016] FIG. 1 shows an example of a fitting device equipped with a motion resistance adding device according to the present invention. This fitting device 1 is a door device comprising 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 an action resistance adding device 30 that adds resistance to the opening action of the opening / closing body 20.

[0017] 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.

[0018] 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 FIG. 3) having a substantially stepped cross section that receives the opening / closing body 20 when fully closed.

[0019] The opening / closing body 20 is a door body having a predetermined thickness and a rectangular shape when viewed from the front. 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. 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 as a fulcrum between a fully closed position where the opening in the frame body 10 is almost fully closed and a fully open position where the opening is almost fully opened (see FIG. 3).

[0023] The operating resistance adding device 30 adds a first resistance to the opening operation within a predetermined initial operating range when the opening / closing body 20 starts the opening operation from the fully closed position (see Figures 3(a) and 4(a)), and weakens this first resistance when the opening / closing body 20 performs the opening operation beyond the initial operating range.

[0024] In addition, the operating resistance adding device 30 sets the resistance when the opening / closing body 20 rotates from outside the initial operating range (see Figure 5(a)) to inside the initial operating range to close as a second resistance, and makes this second resistance smaller than the first resistance.

[0025] More specifically, the motion resistance adding device 30 includes an engaging portion 31 fixed to the opening / closing body 20 and an engaged portion 32 fixed to the frame body 10 .

[0026] The engaging portion 31 comes into contact with the engaged portion 32 and elastically deforms when the opening / closing body 20 is in the initial operating range, and separates from the engaged portion 32 when the opening / closing body 20 performs an opening operation beyond the initial opening range. Here, the "initial operating range" is the rotation range of the opening / closing body 20 from the fully closed position where the opening / closing body 20 contacts or is close to the door stop portion 12a to the opening direction by a predetermined angle α until the engaging portion 31 disengages from the engaged portion 32 (see Figures 3 and 4).

[0027] This engaging portion 31 is a member that is long in the vertical direction, and is integrally formed with a base piece portion 31a fixed to the surface of the opening / closing body 20 and an elastic protrusion portion 31b that is located closer to the door trailing edge than the engaged protrusion portion 32b of the engaged portion 32 when the opening / closing body 20 is in the fully closed position, and is located near the upper end of the door trailing edge of the opening / closing body 20.

[0028] The base piece portion 31 a is formed in a flat plate shape that fits along the surface of the opening / closing body 20 . The elastic protrusion 31b protrudes from the base piece portion 31a and is formed in the shape of an inclined piece in cross section that gradually moves away from the surface of the opening / closing body 20 as it goes towards the door tip side.

[0029] The material of the engaging portion 31 is a material that can elastically deflect the elastic protrusion 31b, and can be, for example, a flexible synthetic resin material, a rubber material, a metal material, or the like. The engaging portion 31 may be fixed to the opening / closing body 20 by adhesive, screwing, riveting, fitting, or the like.

[0030] The engaged portion 32 is a long member that continues in the vertical direction so as to face the engaging portion 31. The engaged portion 32 integrally has a fixed portion 32a that is fixed to a stationary portion of the frame body 10 or the like (in the illustrated example, the trailing edge frame member 11), and an engaged protrusion 32b that protrudes toward the engaging portion 31, and is configured to have a substantially horizontally L-shaped cross section (see FIGS. 4 and 5).

[0031] The space s inside the substantially concave cross section surrounded by the inner surfaces of the fixed portion 32a and the engaged protrusion 32b of the engaged portion 32 and the trailing edge frame member 11 contains the elastic protrusion 31b when the opening / closing body 20 is in the fully closed state.

[0032] The material of the engaged portion 32 may be a hard material such as a hard synthetic resin, a metal material, etc. As another example, the engaged portion 32 may be formed from an elastically deformable material, similar to the engaging portion 31. The engaged portion 32 may be fixed to the trailing edge side frame member 11 by adhesive, screwing, riveting, fitting, or the like.

[0033] Next, the characteristic functions and effects of the fitting device 1 having the above configuration will be described in detail. When the opening / closing body 20 rotates from the fully closed position (see FIG. 3(a)) to the opening direction within the initial operating range (within the angle α according to FIGS. 3 and 4), the elastic protrusion 31b moves in the space s inside the engaged portion 32 in accordance with the rotation (see FIGS. 4(a) and 4(b)). During this movement, the resistance to the opening operation of the opening / closing body 20 is relatively small.

[0034] When the opening / closing body 20 further rotates in the opening direction, the elastic protrusion 31b abuts against the engaged protrusion 32b within the initial movement range and elastically deforms. This elastic deformation increases according to the amount of rotation of the opening / closing body 20 in the opening direction. Therefore, a first resistance due to the elastic deformation is applied to the opening / closing body 20 during the opening movement.

[0035] When the opening / closing body 20 further rotates in the opening direction, the elastic protrusion 31b moves over the engaged protrusion 32b and separates from the engaged protrusion 32b (see FIG. 4(c)). This reduces the resistance to the opening operation of the opening / closing body 20.

[0036] Furthermore, when the opening / closing body 20 in the open state is closed from outside the initial operating range, the resistance to the closing operation is relatively small until the elastic protrusion 31b contacts the engaged protrusion 32b. During the closing operation of the opening / closing body 20, the elastic protrusion 31b is elastically deformed when it comes into contact with the engaged protrusion 32b, and this elastic deformation applies a second resistance to the opening / closing body 20 during the closing operation. This second resistance is smaller than the first resistance because the elastic protrusion 31b is inclined as described above.

[0037] When the opening / closing body 20 is further closed, the elastic protrusion 31b climbs over the engaged protrusion 32b and fits into the space s.

[0038] Therefore, according to the fitting device 1, in the initial operation range, a first resistance is applied to the opening operation of the opening / closing body 20, thereby slowing down the speed of the opening operation of the opening / closing body 20 and preventing the opening / closing body 20 from suddenly opening. 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 operation of the opening / closing body 20 and move away to avoid coming into contact with the opening / closing body 20.

[0039] Furthermore, when the opening-closing body 20 is closed, a second resistance smaller than the first resistance can be applied to the opening-closing body 20 just before it closes. Therefore, the closing operation of the opening-closing body 20 can be performed smoothly, and the second resistance just before it closes can reduce the impact when the opening-closing body 20 is fully closed.

[0040] <Modification> According to the above embodiment, one of the engaged portion 32 and the engaging portion 31, i.e., the engaging portion 31, is attached to the outer surface of the door trailing edge of the opening / closing body 20, and the other engaged portion 32 is attached to the door trailing edge side frame member 11 (immovable portion). However, as another example, it is also possible to configure the engaging portion 31 to be attached to the immovable portion, and the engaged portion 32 to be attached to the opening / closing body 20.

[0041] Furthermore, in the above embodiment, the immovable portion for fixing the engaging portion 31 or the engaged portion 32 is the door tail side frame member 11, but as other examples, it is also possible to use an embodiment in which the immovable portion is the upper frame member 13, or an embodiment in which the immovable portion is the wall surface of the main body on which the building fixture device 1 is to be installed.

[0042] Furthermore, according to the above embodiment, the motion resistance adding device 30 is provided on the trailing edge side of the opening / closing body 20, near the upper end, from the standpoint of preventing tampering, etc. However, other examples include a configuration in which the motion resistance adding device 30 is provided on the trailing edge side of the opening / closing body 20, near the center in the vertical direction, a configuration in which the motion resistance adding device 30 is provided on the trailing edge side of the opening / closing body 20, near the lower end, or a configuration in which the motion resistance adding device 30 is provided near the center or near the edge of the opening / closing body 20 in the width direction.

[0043] Furthermore, according to the above embodiment, a specific example of the motion resistance adding device is provided with the engaging portion 31 and the engaged portion 32 of the above configuration, but this motion resistance adding device can be configured in a manner other than the illustrated example, as long as it adds resistance to the opening operation within a predetermined initial operating range when the opening / closing body 20 begins the opening operation, and weakens (or releases) this resistance when the opening / closing body 20 performs the opening operation beyond the initial operating range. Therefore, as another example of the operating resistance adding device, it is possible to configure it so that resistance is added by a damper device to the opening operation of the opening / closing body 20 within the initial operating range, and the resistance by the damper device is released when the opening / closing body 20 leaves the initial operating range. Furthermore, as another example of the operating resistance adding device, it is possible to provide a sliding member that slides against the opening / closing body 20 only within the initial operating range, and to configure the sliding member to move away from the sliding member when the opening / closing body 20 opens outside the initial operating range.

[0044] Furthermore, according to the above embodiment, the fittings device is configured with the above-mentioned motion resistance adding device, but the basic structure of this motion resistance adding device can be applied to any device that moves 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 fittings) 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 motion resistance adding device 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.

[0045] Furthermore, according to the above embodiment, the first resistance and the second resistance are applied to the opening operation of the opening / closing body, but as another example, it is also possible to configure the first resistance and the second resistance to be applied to the closing operation of the opening / closing body.

[0046] 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]

[0047] 1: Door and window equipment 10:Frame body 11: Door end frame member 20: Opening and closing body (door body) 30: Dynamic resistance adding device 31: Engagement part 31a: Base piece part 31b: Elastic protrusion 32: Engaged part 32a: Fixed part 32b: Engaged protrusion

Claims

1. A motion resistance adding device attached to a fitting device that opens and closes an opening and closing body, The opening / closing body is a door body that rotates to open, A first resistance is applied to the opening operation within a predetermined initial operating range when the opening / closing body starts the opening operation, and the first resistance is weakened when the opening / closing body operates beyond the initial operating range; The opening / closing device includes an engaged portion fixed to one of the opening / closing body and a fixed portion that is immovable relative to the opening / closing body, and an engaging portion fixed to the other of the opening / closing body and the fixed portion; When the opening / closing body is in the initial operation range, the engaging portion comes into contact with the engaged portion from a non-contact state and receives the first resistance, and when the opening / closing body operates beyond the initial operation range, the engaging portion moves away from the engaged portion and is released from the first resistance, The motion resistance adding device, wherein the initial motion range is a rotation range of the opening / closing body from a fully closed position until the engaging portion disengages from the engaged portion.

2. A motion resistance adding device attached to a fitting device that opens and closes an opening and closing body, A first resistance is applied to the opening / closing body within a predetermined initial operating range when the opening / closing body starts to operate, and the first resistance is weakened when the opening / closing body operates beyond the initial operating range; The opening / closing device includes an engaged portion fixed to one of the opening / closing body and a fixed portion that is immovable relative to the opening / closing body, and an engaging portion fixed to the other of the opening / closing body and the fixed portion; When the opening / closing body is in the initial operation range, the engaging portion comes into contact with the engaged portion and receives the first resistance, and when the opening / closing body operates beyond the initial operation range, the engaging portion separates from the engaged portion and is released from the first resistance, The opening / closing body is a door body that rotates to open and close, The engaged portion has an engaged protrusion that protrudes toward the engaging portion, The engaging portion has an elastic protrusion that is positioned closer to the door trailing edge than the engaged protrusion when the opening / closing body is in a fully closed position, An action resistance adding device characterized in that, when the opening / closing body is opened from a fully closed position, the elastic protrusion abuts against the engaged protrusion, elastically deforms, and overcomes the engaged protrusion.

3. 3. The operating resistance adding device according to claim 1, wherein the resistance when the opening / closing body moves from outside the initial operating range to inside the initial operating range is a second resistance, and this second resistance is smaller than the first resistance.

4. 3. The motion resistance adding device according to claim 2, wherein when the opening / closing body performs a closing operation from outside the initial operating range, the elastic protrusion abuts against the engaged protrusion, elastically deforms, and overcomes the engaged protrusion.

5. A fitting device equipped with a motion resistance adding device as described in claim 2 or 4, characterized in that one of the engaged portion and the engaging portion is attached to the outer surface of the door trailing side of the opening and closing body, and the other is attached to a fixed portion.

6. 6. The fitting device according to claim 5, wherein the motion resistance adding device is provided on the door trailing edge side of the opening / closing body and near the upper end.

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