JP2020122320A - Braking unit for opening/closing movement - Google Patents

Abstract

To increase a braking force for safety only when a sliding door, a casement window and the like are accelerated to be opened/closed.SOLUTION: Two sliders 4, 4, four clutches 5 divided into four in 90 degree intervals, and four brake shoes 6 divided into four in 90 degree intervals are incorporated in an inner hole 31 of a hollow cylindrical body 3. A through-hole 41 is formed in a shaft center of the sliders 4, 4, and a wire rod 106 is inserted so as to be relatively movable in a longitudinal direction of Fig. 6. Cylindrical pistons 42, 42 are formed on one end of an outer periphery of the sliders 4, 4, cones 43, 43 are formed on the other end, and the sliders 4, 4 are disposed such that the cones 43, 43 face each other. Conical holes 51, 51 abutting with the cones 43, 43 are formed in the clutch 5 which expands by a pressing force accompanying a movement of the sliders 4, 4. The brake shoe 6 is pressed to an inner wall of the inner hole 31 of the cylindrical body 3 to generate a frictional resistance with an inner peripheral surface of the inner hole 31.SELECTED DRAWING: Figure 6

Description

The present invention relates to an opening/closing braking unit for a sliding door, an opening window, etc. More specifically, the present invention relates to an opening/closing braking unit for sliding doors, hinged windows, etc. that are opened and closed by sliding left and right on grooves and rails.

When you try to close the sliding door, if you close it abruptly, it collides with the frame of the opening where the sliding door is attached and a loud noise is made, or the person trying to close the sliding door does not catch your finger. There is a risk of getting stuck. Various mechanisms have been proposed as a device for preventing sudden closing of a sliding door that applies braking to the sliding door. Among these, when closing the sliding door quietly, the resistance force to the sliding door is made as small as possible, and when the sliding door is closing at a speed higher than a predetermined speed, acceleration is detected by the spring and braking is appropriately performed by friction. A device for preventing sliding doors from sudden closing has been proposed (Patent Document 1). In addition, there is also proposed a method in which the shock caused by the sudden acceleration of a sliding door is braked by a damper of an air cylinder and the friction of an elastic body in contact with the inner hole of the cylinder is used (Patent Document 2).

JP-A-2007-186987 Utility model registration No. 3201860

However, in the braking mechanism of the sliding door sudden closing prevention device described in Patent Document 1, braking is performed by friction of one surface due to spring force, and if the braking force is weak, for example, a force such as leaning against the weight is applied sufficiently. I can't brake. Further, the sliding door braking unit described in Patent Document 2 brakes with a damper of an air cylinder and with friction of an elastic body in contact with an inner hole of the cylinder. Due to the deformation, an elastic body is pressed against the inner hole of the piston for braking, and braking response and braking force are weak.
The present invention achieves the following objects from the above background.
An object of the present invention is to provide an opening/closing braking unit that can increase a braking force only when a sliding door, a window, etc. are accelerated and opened/closed.
Another object of the present invention is to provide an opening/closing braking unit that can surely perform a braking operation only when a sliding door, an opening window, etc. are accelerated and opened/closed.
Still another object of the present invention is to provide an opening/closing braking unit such as a sliding door and an opening window that can be used without any hindrance during steady use.

The present invention adopts the following means in order to solve the above problems.
That is, the opening/closing braking unit of the present invention 1 is an opening/closing unit in which a frame having an opening is provided with a sliding door or a window that relatively moves by opening and closing the opening, and the frame in the moving direction of the sliding door or the window. At the end, there is a wire rod whose both ends are fixed, and a fluid chamber which is fixed to the sliding door or window, is inserted through the wire rod, moves relative to the tension direction of the wire rod, and is filled with fluid inside. Airtightness is maintained in a hollow cylindrical body, two lid members fixed to both ends of the cylindrical body, and having a circulation portion through which the wire is inserted and through which fluid in the fluid chamber flows in and out, and an inner hole of the cylindrical body. Slidably arranged, a piston is formed at one end, a cone is formed at the other end, the cones are arranged to face each other, and the two sliders move on the wire rod; and the two sliders. Conical holes, which are arranged between the two and are brought into contact with and engaged with the cone, are formed by pressing with the movement of the slider, and the brake shoe is pressed against the inner wall of the inner hole of the cylindrical body. , A clutch for generating frictional resistance between the inner hole and the inner peripheral surface of the inner hole.

The opening/closing braking unit of the second aspect of the present invention is an opening/closing unit in which a frame having an opening is provided with a sliding door or window that opens and closes the opening to relatively move, and is supported by two pulleys to move the sliding door or window. And a hollow cylindrical body having a fluid chamber that is filled with a fluid inside, and a wire rod that is circulated in a direction and is fixed to the sliding door or the window, and the wire rod that is fixed to the frame body and allows the wire rod to pass therethrough. Fixed to both ends of the two rod members having a circulation portion for inserting the wire rod and allowing the fluid in the fluid chamber to flow in and out, and the inner hole of the cylindrical body is arranged slidably while maintaining airtightness, A piston is formed at one end and a cone is formed at the other end. The two cones are arranged so that the cones face each other and move on the wire rod. The sliders are arranged between the two sliders. A conical hole is formed that abuts against and engages with the inner peripheral surface of the inner hole of the cylindrical body by pressing the brake shoe against the inner wall of the inner hole of the cylindrical body. And a clutch that generates frictional resistance between the two.

The opening/closing braking unit of the present invention 3 is an opening/closing unit in which a frame having an opening is provided with an opening door that opens and closes the opening and is swingable at one end. A rod-shaped body, and a hollow cylindrical body having one end swingably provided on the frame body, the other end of the rod-shaped body being inserted from the other end for relative movement, and having a fluid chamber filled with a fluid therein , Two lid members fixed to both ends of the cylindrical body, the other end of the rod-shaped body being inserted through one end side, and having a circulation portion for letting in and out the fluid of the fluid chamber, and an inner hole of the cylindrical body Two sliders that are slidably arranged while maintaining airtightness, a piston is formed at one end, a cone is formed at the other end, the cones are arranged to face each other, and move on the rod-shaped body. , A conical hole is formed between the two sliders, which is brought into contact with and engages with the cone, respectively, and the diameter is expanded by pressing with the movement of the slider, and the inner wall of the inner hole of the cylindrical body is braked. It is composed of a clutch that presses the shoe to generate frictional resistance between the shoe and the inner peripheral surface of the inner hole, and two stoppers that are fixed to the rod-shaped body and relatively move with the lid member. And

An opening/closing braking unit of the present invention 4 is characterized in that, in the item 1 selected from the present invention 1 to 3, the clutch is composed of a plurality of divided parts connected by concave and convex.
An opening/closing braking unit according to a fifth aspect of the present invention is characterized in that, in the first or second aspect of the present invention, two stoppers that are fixed to the wire and that move relative to the lid member are provided.
An opening/closing braking unit of the present invention 6 is characterized in that, in the item 1 selected from the present invention 1 to 3, the material of the brake shoe is rubber.

An opening/closing braking unit according to a seventh aspect of the present invention is characterized in that, in the first item selected from the first to third aspects of the present invention, the lid member is provided with an air adjusting portion that adjusts air in the cylindrical body to flow in and out. ..
The opening/closing braking unit of the eighth invention is arranged between the two sliders according to the first aspect selected from the first to third inventions, and constantly biases in a direction in which a distance between the two sliders increases. One spring member and a second spring member that is arranged on the outer circumference of the clutch and that always urges the clutch in the direction of reducing the diameter are provided.

The opening/closing braking unit of the present invention can increase the braking force and ensure the braking operation only when the sliding door, the opening window, etc. are accelerated and opened/closed. Furthermore, the braking force does not work during steady use, and it can be used without any problems.

1A and 1B show an opening/closing unit including an opening/closing braking unit according to a first embodiment of the present invention. FIG. 1A is an overall front view, and FIG. 1B is a plan view of FIG. 1A. Is. 2 shows a main part of the opening/closing braking unit of FIG. 1, FIG. 2(a) is a front view of the opening/closing braking unit, FIG. 2(b) is a plan view of FIG. 2(a), and FIG. 2) is a view on arrow P of FIG. 2B, and FIG. 2D is a view on arrow Q of FIG. 2B. FIG. 3 is an overall perspective view of the opening/closing braking unit of FIG. FIG. 4 is a perspective view showing a state in which a hollow cylindrical body is removed from the opening/closing braking unit of FIG. FIG. 5 is a perspective view in which a part of the clutch of the opening/closing braking unit of FIG. 4 is removed so that the internal structure can be seen. 6 is a vertical cross-sectional view of a main part of the opening/closing braking unit of FIG. 3, FIG. 6(a) is a vertical cross-sectional view showing a state where the sliding door is opened/closed at a normal speed, and FIG. 6(b) is It is a longitudinal cross-sectional view showing a state in which a sliding door is rapidly opened and closed to exert a braking force. FIG. 7 is an exploded perspective view of a main part of the opening/closing braking unit of FIG. FIG. 8 is an exploded front view of a main part of the opening/closing braking unit of FIG. FIG. 9 shows an opening/closing unit including an opening/closing braking unit according to a second embodiment of the present invention, FIG. 9(a) is an overall front view, and FIG. 9(b) is a plan view of FIG. 9(a). Is. FIG. 10 shows an opening/closing unit including an opening/closing braking unit according to a third embodiment of the present invention, FIG. 10(a) is an overall front view, and FIG. 10(b) is a plan view of FIG. 10(a). Is. FIG. 11 shows an opening/closing unit including an opening/closing braking unit according to a fourth embodiment of the present invention, FIG. 11(a) is an overall front view, and FIG. 11(b) is a plan view of FIG. 11(a). Is. FIG. 12 is an overall front view showing an opening/closing unit including an opening/closing braking unit according to a fifth embodiment of the present invention. FIG. 13 is a plan view of FIG.

[First Embodiment of Opening/Closing Braking Unit]
An opening/closing braking unit (a brake device is attached to a sliding door) according to a first embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows an opening/closing unit including an opening/closing braking unit according to a first embodiment of the present invention, FIG. 1(a) is an overall front view, and FIG. 1(b) is a plan view of FIG. 1(a). is there. As shown in FIGS. 1A and 1B, the opening/closing unit 100 including the opening/closing braking unit 1 according to the first embodiment of the present invention has a rectangular frame 101 with an opening A sliding door 102 is provided so as to be movable in the left-right direction of 1, and opens and closes the opening of the frame body 101. Two door rollers 103, 103 are fixed to both ends of the upper surface of the sliding door 102 in the left-right direction. An inclined rail 105 that rises to the right as viewed in FIG. 1A is fixed to the lintel 104, and the door rollers 103, 103 are guided by the inclined rail 105 and can move in the left-right direction in FIG. 1.

The left and right ends of the wire member 106 are fixed to the left frame 101A and the right frame 101B formed at both ends of the frame body 101 in the left-right direction, and are stretched with a predetermined tension. The wire rod 106 is fixed at the same inclination angle as the inclination angle of the inclined rail 105. Two brackets 107A and 107B are fixed to both ends of the upper surface of the sliding door 102 in the left-right direction. The lid members 2 and 2 are fixed to the brackets 107A and 107B, respectively. The lid members 2 and 2 are fixed to both ends of a hollow cylindrical body 3. The hollow cylindrical body 3 is fixed at the same inclination angle as the inclination angle of the wire rod 106. The wire rod 106 is inserted through the lid members 2 and 2 and the hollow cylindrical body 3. Therefore, when the sliding door 102 moves in the left-right direction in FIG. 1, the hollow cylindrical body 3 fixed to the brackets 107A and 107B by the lid members 2 and 2 moves in the left-right direction in FIG.

Next, the internal structure of the hollow cylindrical body 3 will be described in detail. 2 shows a main part of the opening/closing braking unit 1 of FIG. 1, FIG. 2(a) is a front view of the opening/closing braking unit 1, FIG. 2(b) is a plan view of FIG. 2(a), and FIG. 2C is a view from the arrow P of FIG. 2B, and FIG. 2D is a view from the arrow Q of FIG. 2B. 3 is an overall perspective view of the opening/closing braking unit 1 of FIG. 2, FIG. 4 is a perspective view showing a state in which the hollow cylindrical body 3 is removed from the opening/closing braking unit 1 of FIG. 3, and FIG. It is a perspective view which removed some clutches of braking unit 1, and made an internal structure visible. 6 is a vertical cross-sectional view of a main part of the opening/closing braking unit of FIG. 3, FIG. 6(a) is a vertical cross-sectional view showing a state in which the sliding door is opened and closed at a normal speed, and FIG. 6(b) is a sliding door. FIG. 5 is a vertical cross-sectional view showing a state in which the brake is rapidly opened and closed to exert a braking force. 7 is an exploded perspective view of an essential part of the opening/closing braking unit 1 of FIG. 3, and FIG. 8 is an exploded front view of an essential part of the opening/closing braking unit 1.

As shown in FIG. 2 to FIG. 8, in the inner hole 31 of the hollow cylindrical body 3, four sliders 4, 4, 5, 90 degrees are divided into four clutches 5, 5, 5, 5, 90 degrees. Four brake shoes 6, 6, 6, 6 which are divided into four at intervals are incorporated. Air is contained in the inner hole 31 of the cylindrical body 3. A through hole 41 is formed in the shaft center of each of the sliders 4 and 4, and a wire rod 106 is fitted therein so as to be relatively movable in the left-right direction in FIG. Cylindrical pistons 42, 42 are formed at one ends of the outer circumferences of the sliders 4, 4, and cones 43, 43 are formed at the other ends. The sliders 4, 4 are arranged so that the cones 43, 43 face each other. ing. The pistons 42, 42 are slidably fitted in the inner hole 31 of the cylindrical body 3 while maintaining airtightness.

Thin disk-shaped rubber washers 44A and 44B are attached to the end surfaces of the pistons 42 and 42, respectively. The washer 44A reduces air leakage from the gap between the through hole 41 and the wire rod 106 and stabilizes the braking force. The washer 44B, which is thicker than the washer 44A, suppresses the bending of the washer 44A. Metallic cylindrical stoppers 45, 45 are caulked and fixed to the outer periphery of the wire rod 106 on the left and right sides of the washers 44B, 44B. The stoppers 45, 45 prevent the distance between the sliders 4, 4 from becoming wider than in the state of FIG. The clutches 5, 5, 5 and 5 are formed with conical holes 51, 51, 51 and 51 that come into contact with the cones 43 and 43. The brake shoes 6, 6, 6, 6 are pressed against the inner wall of the inner hole 31 to generate frictional resistance with the inner peripheral surface of the inner hole 31.

A concave portion 52 and a convex portion 53 are formed in the clutches 5, 5, 5 and 5, and the concave portion 52 and the convex portion 53 of the adjacent clutches 5, 5, 5 and 5 are engaged with each other to be coupled, and the adjacent clutches 6, 5, 5 and 5 are prevented from shifting in the left-right direction, variation in braking force is suppressed, and the diameters of the clutches 5, 5, 5 and 5 are allowed to be increased. The clutches 5, 5, 5, 5 are fitted with annular springs (second spring members) 54, 54 in annular grooves at the left and right ends thereof, and urge the clutches 5, 5, 5, 5 in a direction to constantly reduce the diameter. There is. The brake shoes 6, 6, 6, 6 are made of an elastic material such as rubber, and are fixed by being attached to the outer peripheral surfaces of the clutches 5, 5, 5, 5. A compression coil spring (first spring member) 46 is inserted between the sliders 4 and 4 and constantly biases the sliders 4 and 4 in a direction in which the distance between the sliders 4 and 4 increases.

As shown in FIG. 6, the cylindrical shaft portions 21, 21 of the lid members 2, 2 are fitted into both ends of the inner hole 31 of the hollow cylindrical body 3 (in FIG. 6, the right lid member 2 and the cylindrical body 3 are Both ends of the cylindrical body 3 are fixed to the cylindrical shaft portions 21 and 21 with screws 22 respectively. The O-rings 23, 23 fitted in the annular groove on the outer periphery of the cylindrical shaft portion 21 prevent air leakage. Intake/exhaust holes (circulation portions) 24 are formed in the lid members 2 and 2, and the balls 25 are pushed by the adjusting screws 26 so that the gap during intake/exhaust can be adjusted. Therefore, the flow rate of the air flowing in and out from the left cylinder chamber 32 of FIG. 6 through the intake/exhaust holes 24 can be adjusted, so that the braking force can be adjusted. The ball 25 and the adjusting screw 26 form an air adjusting section. An O-ring 27 inserted into the outer periphery of the upper portion of the adjusting screw 26 prevents air from leaking from the adjusting screw 26 and prevents the adjusting screw 26 from loosening.

[Braking operation of the opening/closing braking unit 1]
When the sliding door 102 is opened and closed at a normal speed, as shown in FIG. 6A, since the air pressure in the left cylinder chamber 32 and the right cylinder chamber 33 is small, a large pressing force does not act on the sliders 4 and 4. .. The compression coil spring 46 always urges the distance between the sliders 4 and 4 to expand, and the annular springs 54 and 54 urge the clutches 5, 5, 5 and 5 to always reduce the diameter, and thus the brakes. The shoes 6, 6, 6, 6 are separated from the inner peripheral surface of the inner hole 31 of the cylindrical body 3, and between the brake shoes 6, 6, 6, 6 and the inner peripheral surface of the inner hole 31 of the cylindrical body 3. Friction resistance does not occur. Therefore, when opening and closing the sliding door 102 at a normal speed, the sliding door 102 can be opened and closed with a small force.

When the sliding door 102 is rapidly opened and closed (for example, the sliding door 102 is rapidly closed to the left side in FIG. 1), the cylindrical body 3 is moved along the wire rod 106 in the leftward direction in FIG. 1 as shown in FIG. 6B. Move to. Then, since the air in the right cylinder chamber 33 of the right slider 4 is compressed, a large pressing force acts on the right slider 4 and the right slider 4 moves to the left along the wire rod 106. Since the left slider 4 cannot be moved to the left by the left stopper 45, the distance between the sliders 4 and 4 is shortened. As a result, the clutches 5, 5, 5, 5 are expanded in diameter by the pressure caused by the movement of the sliders 4, 4, and the outer peripheral surfaces of the brake shoes 6, 6, 6, 6 are formed on the inner peripheral surface of the inner hole 31 of the cylindrical body 3. Press on the surface. As a result, frictional resistance occurs between the inner peripheral surface of the inner hole 31 and a large braking force is applied to the sliding door 102. When the sliding door 102 is rapidly closed to the right side, the air in the left cylinder chamber 32 of the left slider 4 is compressed, the diameters of the clutches 5, 5, 5, 5 are expanded, and a large braking force is applied to the sliding door 102. Granted. After that, when the sliding door 102 is opened/closed at a normal speed, the compression coil spring 46 and the annular springs 54, 54 urge the clutches 5, 5, 5, 5 in a direction to reduce the diameter in a short time. When the sliding door 102 is opened and closed at a speed, the sliding door 102 can be opened and closed with a small force.

In the opening/closing unit 100 including the opening/closing braking unit 1 according to the first embodiment of the present invention, when the sliding door 102 is rapidly opened/closed, the outer peripheral surfaces of the brake shoes 6, 6, 6, 6 have the cylindrical body 3. Since the diameter is increased while maintaining the state parallel to the inner hole 31, it is possible to perform a reliable braking operation. Further, when returning to the normal opening/closing speed, the distance between the sliders 4 and 4 is expanded by the compression coil spring 46, and the clutches 5, 5, 5 and 5 are urged by the annular springs 54 and 54 in the direction of reducing the diameter. Therefore, it can be used without any hindrance during regular use.

[Second Embodiment of Opening/Closing Brake Unit]
Next, an opening/closing braking unit (a brake device is built in a sliding door) according to a second embodiment of the present invention will be described with reference to the drawings. The opening/closing braking unit according to the second embodiment is an example in which the hollow cylindrical body 3 is built in the sliding door 102. 9 shows an opening/closing unit including an opening/closing braking unit according to a second embodiment of the present invention, FIG. 9(a) is an overall front view, and FIG. 9(b) is a plan view of FIG. 9(a). is there. As shown in FIGS. 9A and 9B, the opening/closing unit 200 including the opening/closing braking unit 11 according to the second embodiment of the present invention has a rectangular frame 101 with an opening portion. A sliding door 102 is provided so as to be movable in the left-right direction of 9 and opens and closes the opening of the frame body 101. Two door rollers 103, 103 are fixed to both ends of the upper surface of the sliding door 102 in the left-right direction. 9A is fixed to the lintel 104, and the door rails 103, 103 are guided by the inclined rail 105 and can move in the left-right direction in FIG.

The left and right ends of the wire member 106 are fixed to the left frame 101A and the right frame 101B formed at both ends of the frame body 101 in the left-right direction, and are stretched with a predetermined tension. The wire rod 106 is fixed at the same inclination angle as the inclination angle of the inclined rail 105. Lid members 2 are fixed to both ends of the groove 102A on the upper surface of the sliding door 102 in the left-right direction. The lid members 2 and 2 are fixed to both ends of a hollow cylindrical body 3. The hollow cylindrical body 3 has the same structure as the hollow cylindrical body 3 described in the first embodiment. The hollow cylindrical body 3 is fixed at the same inclination angle as the inclination angle of the wire rod 106. The wire rod 106 is inserted through the lid members 2 and 2 and the hollow cylindrical body 3. Therefore, when the sliding door 102 moves in the left-right direction in FIG. 9, the hollow cylindrical body 3 fixed by the lid members 2 and 2 moves in the left-right direction in FIG. 9 along the wire rod 106. Therefore, also in the opening/closing unit 200 including the opening/closing braking unit 11 according to the second embodiment of the present invention, when the sliding door 102 is opened/closed at the normal speed, the sliding door 102 can be opened/closed with a small force, and the sliding door 102 can be opened and closed. When is rapidly opened and closed, a large braking force can be applied to the sliding door 102.

[Third Embodiment of Opening/Closing Braking Unit]
Next, a third embodiment of the present invention will be described with reference to the drawings of an opening/closing braking unit (where the braking device is attached to the hook). The opening/closing braking unit according to the third embodiment is an example in which the hollow cylindrical body 3 is attached to the lintel 104. FIG. 10 shows an opening/closing unit including an opening/closing braking unit according to a third embodiment of the present invention, FIG. 10(a) is an overall front view, and FIG. 10(b) is a plan view of FIG. 10(a). is there. As shown in FIGS. 10(a) and 10(b), an opening/closing unit 300 including the opening/closing braking unit 12 according to the third embodiment of the present invention has a rectangular frame 101 with an opening A sliding door 102 is provided so as to be movable in the left-right direction of 10, and opens and closes the opening of the frame body 101. Two door rollers 103, 103 are fixed to both ends of the upper surface of the sliding door 102 in the left-right direction. An inclined rail 105 that rises to the right as seen in FIG. 10A is fixed to the lintel 104, and the door rollers 103, 103 are guided by the inclined rail 105 and can move in the left-right direction in FIG. 10.

Two brackets 107C and 107D are fixed to both ends of the lintel 104 in the left-right direction. Pulleys 108, 108 are rotatably supported by the brackets 107C, 107D, respectively. The wire rod 106 is attached to the pulleys 108, 108 so as to circulate in the moving direction of the sliding door 102 and is stretched with a predetermined tension. The wire rod 106 is stretched at the same inclination angle as the inclination angle of the inclined rail 105. The wire rod 106 is attached to the sliding door 102 by a bracket 107E fixed near the left end of the upper surface of the sliding door 102. Lid members 2 and 2 are fixed to the lintel 104, respectively. The lid members 2 and 2 are fixed to both ends of a hollow cylindrical body 3. The hollow cylindrical body 3 has the same structure as the hollow cylindrical body 3 described in the first embodiment. The hollow cylindrical body 3 is fixed at the same inclination angle as the inclination angle of the wire rod 106. The wire rod 106 is inserted through the lid members 2 and 2 and the hollow cylindrical body 3. Therefore, when the sliding door 102 moves in the left-right direction in FIG. 10, the hollow cylindrical body 3 remains fixed and is pulled by the sliding door 102, and the wire rod 106 moves in the left-right direction in FIG. 10. Therefore, also in the opening/closing unit 300 including the opening/closing braking unit 12 according to the third embodiment of the present invention, when the sliding door 102 is opened/closed at the normal speed, the sliding door 102 can be opened/closed with a small force, and the sliding door 102 can be opened/closed. When is quickly opened and closed, a large braking force can be applied to the sliding door 102.

[Fourth Embodiment of Opening/Closing Brake Unit]
Next, an opening/closing braking unit (a brake device applied to a folding door) according to a fourth embodiment of the present invention will be described with reference to the drawings. The opening/closing braking unit of the fourth embodiment is an example applied to a folding door. FIG. 11 shows an opening/closing unit including an opening/closing braking unit according to a fourth embodiment of the present invention. FIG. 11(a) is an overall front view and FIG. 11(b) is a plan view of FIG. 11(a). is there. As shown in FIGS. 11A and 11B, the opening/closing unit 400 including the opening/closing braking unit 13 according to the fourth embodiment of the present invention has a hinge at the opening of the rectangular frame 101. Inner-folding folding doors 109A and 109B that bend at 109C are provided to be openable and closable, and open and close the opening of the frame 101. A runner (not shown) is fixed to the upper surface of the folding door 109A, and is guided by a guide rail (not shown) fixed to the upper frame 101C of the frame body 101 and can move in the left-right direction in FIG.

Two brackets 107F and 107G are fixed to the upper frame 101C at both ends in the left-right direction. Pulleys 108 and 108 are rotatably supported by the brackets 107F and 107G, respectively. The wire 106 is attached to the pulleys 108, 108 so as to circulate in the moving direction of the folding door 109A and is stretched with a predetermined tension. The wire rod 106 is attached to the folding door 109A by a bracket 107H fixed to the upper surface of the folding door 109A. The lid members 2 and 2 are fixed to the upper frame 101C. The lid members 2 and 2 are fixed to both ends of a hollow cylindrical body 3. The hollow cylindrical body 3 has the same structure as the hollow cylindrical body 3 described in the first embodiment. The wire rod 106 is inserted through the lid members 2 and 2 and the hollow cylindrical body 3. Therefore, when the folding doors 109A and 109B are opened/closed and the folding door 109A moves in the left-right direction in FIG. 11, the hollow cylindrical body 3 remains fixed and is pulled by the folding door 109A, so that the wire rod 106 in FIG. Move left and right. Therefore, also in the opening/closing unit 400 including the opening/closing braking unit 13 according to the fourth embodiment of the present invention, when the folding doors 109A, 109B are opened/closed at a normal speed, the folding doors 109A, 109B are applied with a small force. When the folding doors 109A and 109B are rapidly opened and closed, a large braking force can be applied to the folding doors 109A and 109B.

[Fifth Embodiment of Opening/Closing Brake Unit]
Next, an opening/closing braking unit (a brake device applied to a hinged door) according to a fifth embodiment of the present invention will be described with reference to the drawings. The opening/closing braking unit of the fifth embodiment is an example applied to a hinged door. 12 is an overall front view of an opening/closing unit including an opening/closing braking unit according to a fifth embodiment of the present invention, and FIG. 13 is a plan view of FIG. As shown in FIGS. 12 and 13, in the opening/closing unit 500 including the opening/closing braking unit 14 according to the fifth embodiment of the present invention, the hinged door 109 has the hinged door 110 in the right frame 101B of the rectangular frame 101. It is swingably supported and opens and closes the opening of the frame 101. At the left end of the hinged door 110, the left end of a piston rod (rod-shaped body) 111 is swingably supported. The right end of the piston rod 111 is inserted into the lid member 2 fixed to the left end of the hollow cylindrical body 3, and the lid member 2 fixed to the right end of the hollow cylindrical body 3 is swingable on the upper frame 101C of the frame body 101. Is supported by. The hollow cylindrical body 3 has the same structure as the hollow cylindrical body 3 described in the first embodiment.

Although not shown, the hollow cylindrical body 3 has the two slider four clutches 5, the brake shoe 6, and the stopper 45, which are described in the first embodiment, in the inner hole. That is, two sliders are movably fitted on the right end of the piston rod 111. Further, four clutches are arranged between the two sliders to press the brake shoe against the inner wall of the inner hole of the hollow cylindrical body 3 to generate frictional resistance with the inner peripheral surface of the inner hole. Let Stoppers are fixed to the left and right ends of the slider 4 on the piston rod 111. Therefore, when the hinged door 110 is opened and closed, it is pulled by the hinged door 110 and the piston rod 111 moves relatively to the hollow cylindrical body 3. Therefore, also in the opening/closing unit 500 including the opening/closing braking unit 14 according to the fifth embodiment of the present invention, when the hinged door 110 is opened/closed at a normal speed, the hinged door 110 can be opened/closed with a small force, and the hinged door 110 is opened. When is quickly opened and closed, a large braking force can be applied to the hinged door 110.

Although the embodiment of the present invention has been described above, the present invention is not limited to this embodiment. For example, in the above-described embodiment, the clutch is divided into four at 90-degree intervals, but a division method other than four-division may be used, or equal division is not necessary. Further, in the above-described embodiment, the first spring member that constantly urges in the direction in which the distance between the two sliders increases and the second spring member that always urges in the direction in which the clutch diameter is reduced are provided. However, either one kind of spring member may be provided.

100, 200, 300, 400, 500... Opening/closing unit 101... Frame 101A... Left frame 101B... Right frame 101C... Top frame 102... Sliding door 102A... Recessed groove 103... Door car 104... Clinque 105... Inclined rail 106... Wire 107A , 107B, 107C, 107D, 107E, 107F, 107G, 107H... Bracket 108... Pulleys 109A, 109B... Folding doors 109C, 109D... Hinge 110... Swing door 111... Piston rods 1, 11, 12, 13, 14... Open/close braking Unit 2... Lid member 21... Cylindrical shaft portion 22... Screw 23... O-ring 24... Intake/exhaust hole (circulation portion)
25... Ball 26... Adjusting screw 27... O-ring 3... Cylindrical body 31... Inner hole 32... Left cylinder chamber 33... Right cylinder chamber 4... Slider 41... Through hole 42... Piston 43... Cone 44A, 44B... Washer 45... Stopper 46... Compression coil spring (first spring member)
5... Clutch 51... Conical hole 52... Recessed portion 53... Convex portion 54... Annular spring (second spring member)
6...Brake shoes

Claims (8)

An opening and closing unit in which a frame having an opening is provided with a sliding door or a window that opens and closes the opening and relatively moves,
At the frame body end portion in the moving direction of the sliding door or the window, a wire rod in which both end portions are fixed and arranged,
A hollow cylindrical body fixed to the sliding door or the window, having the wire rod inserted therein, and relatively moving in the tension direction of the wire rod, and having a fluid chamber filled with a fluid inside,
Two lid members that are fixed to both ends of the cylindrical body and that have a circulation portion that allows the wire rod to be inserted and allows the fluid in the fluid chamber to flow in and out;
It is slidably arranged in the inner hole of the cylindrical body so as to be slidable, a piston is formed at one end, a cone is formed at the other end, and the cones are arranged so as to face each other and move on the wire rod. Two sliders to
A conical hole is formed between the two sliders, which is brought into contact with and engages with the cone. The conical hole is expanded by the pressing force caused by the movement of the slider, and the brake shoe is attached to the inner wall of the inner hole of the cylindrical body. An opening/closing braking unit including a clutch that presses against the inner peripheral surface of the inner hole to generate frictional resistance. An opening and closing unit in which a frame having an opening is provided with a sliding door or a window that opens and closes the opening and relatively moves,
A wire rod that is supported by two pulleys, is wound in the moving direction of the sliding door or window, and is fixed to the sliding door or window,
A hollow cylindrical body that is fixed to the frame body and allows the wire rod to pass therethrough, and has a fluid chamber filled with fluid inside,
Two lid members that are fixed to both ends of the cylindrical body and that have a circulation portion that allows the wire rod to be inserted and allows the fluid in the fluid chamber to flow in and out;
It is slidably arranged in the inner hole of the cylindrical body so as to be slidable, a piston is formed at one end, a cone is formed at the other end, and the cones are arranged so as to face each other and move on the wire rod. Two sliders to
A conical hole is formed between the two sliders, which is brought into contact with and engages with the cone. The conical hole is expanded by the pressing force caused by the movement of the slider, and the brake shoe is attached to the inner wall of the inner hole of the cylindrical body. An opening/closing braking unit including a clutch that presses against the inner peripheral surface of the inner hole to generate frictional resistance. In an opening/closing unit in which a frame having an opening is provided with a swing door that opens and closes the opening and has one end swingable,
A rod-shaped body provided swingably on one end of the hinged door,
One end is swingably provided on the frame body, the other end of the rod-shaped body is inserted from the other end and relatively moves, and a hollow cylindrical body having a fluid chamber filled with a fluid therein,
Two lid members fixed to both ends of the cylindrical body, the other end of the rod-shaped body being inserted through the one end side, and having a circulation portion for allowing the fluid in the fluid chamber to flow in and out,
The cylindrical body is slidably arranged in an inner hole so as to be slidable, a piston is formed at one end, a cone is formed at the other end, and the cones are arranged so as to face each other. Two sliders that move,
A conical hole is formed between the two sliders, which is brought into contact with and engages with the cone. The conical hole is expanded by the pressing force caused by the movement of the slider, and the brake shoe is attached to the inner wall of the inner hole of the cylindrical body. And a clutch that causes frictional resistance between the inner peripheral surface of the inner hole and
An opening/closing braking unit including two stoppers fixed to the rod-shaped body and relatively moving with the lid member. The opening/closing braking unit according to claim 1, which is selected from claims 1 to 3,
The opening/closing braking unit is characterized in that the clutch is composed of a plurality of divided parts that are connected by concave and convex portions. In the opening/closing braking unit according to claim 1 or 2,
An opening/closing braking unit provided with two stoppers fixed to the wire and moving relative to the lid member. The opening/closing braking unit according to claim 1 selected from claims 1 to 3,
The brake unit for opening and closing is characterized in that the material of the brake shoe is rubber. The opening/closing braking unit according to claim 1, which is selected from claims 1 to 3,
An opening/closing braking unit, wherein the lid member is provided with an air adjusting portion for adjusting the air in the cylindrical body to flow in and out. The opening/closing braking unit according to claim 1 selected from claims 1 to 3,
A first spring member which is arranged between the two sliders and which constantly urges in a direction in which a distance between the two sliders increases.
And a second spring member which is arranged on the outer periphery of the clutch and always biases the clutch in a direction of reducing the diameter of the clutch.

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