JP2008223310A - Braking device for movable sliding screen - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To decelerate the falling speed of a movable sliding screen from a predetermined position near the position where the movable sliding screen is completely closed. <P>SOLUTION: This braking device for a movable sliding screen comprises a bearing member 15 secured to the side end of the movable sliding screen 3 lifting through a lifting member 7, a gear 17 pivotally supported on the bearing member, and a rack 21 secured to the vertical frame of a window along the inner wall surface thereof and engaged with the gear between the predetermined position and the closed position of the movable sliding screen when the movable sliding screen is lowered normally and urgently. If the movable sliding screen 3 is fallen suddenly when the lifting member 7 is broken, the falling speed of the movable sliding screen is decelerated by the engagement of the gear 17 with the rack 21. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a brake device for a movable shoji that moves up and down in the vertical direction.

  Brake devices related to windows can be broadly divided into brake devices for rotary windows and lift-type brake devices. The present invention is a brake device belonging to the latter type.

  Here, as the background technology, one of the latter types of background technology is cited. One of them is Patent Document 1. This Patent Document 1 describes a locking device that operates when a hanging material (wire) is cut. This locking device is attached to the inner movable shoji (inner housing) via a long plate-like support member. And the basic composition is engaged with the vertical support plate fixed in the vertical direction to the side end of the inner movable shoji, the vertical guide slot of the vertical support plate, and the lower end of the suspension member is connected The movable horizontal shaft, a connecting lever connected to the movable horizontal shaft, a stopper lever connected to the lower end portion of the connecting lever via a pivot, and the intermediate portion of the stopper lever are pivotally supported. A fixed support shaft provided on the vertically long support plate, a cylindrical stopper provided on the lower end portion of the stopper lever via a long groove and a support shaft, an upper end portion on the upper end portion of the stopper lever, and a lower end portion on the inner side It consists of a spring connected to the top plate of the movable shoji.

  In the above configuration, in the normal state where the tension of the suspension material is acting, the columnar stopper is fixedly projected to the vertically long support plate because the tension of the suspension material acts on the connecting lever. Waiting below the wedge-shaped stopper provided.

  On the other hand, in the event of an emergency when the suspended material has been cut, the cylindrical stopper rolls along the slope of the wedge-shaped stopper instantaneously due to the weight of the inner movable shoji, etc. It enters the space between the columnar stopper and the inner surface of the vertical frame facing the side end face and frictionally locks.

  However, although the above-described locking device has advantages such as fewer components and high reliability in operation, the movable shoji is locked by the wedge means during the fall, so it is repaired. Until then, there is a problem that the lower end of the movable shoji and the lower horizontal frame of the window frame remain open (rain and wind enter).

  Therefore, it is desired that the movable shoji be completely closed even in the case of an emergency in which the suspended material is cut. In that case, the movable shoji is expected to fall slowly and be received by the lower horizontal frame of the window frame from the viewpoint of noise prevention and damage prevention.

  By the way, Patent Document 2 describes a matter of providing a brake device in order to prevent an excessive inertia force from acting on a sliding door that moves in the horizontal direction in the horizontal frames above and below the door frame. As described in FIG. 2 and FIG. 5, the brake device of Patent Document 2 includes a rack and a pinion that meshes with the rack, and the rack includes a belt-shaped iron plate. Magnets are incorporated in the circumferential direction.

  Therefore, when the sliding door is closed, it is attracted to the door frame by the magnetic force of the magnet, and even if it rolls and travels through the rotating body, it has the advantage that it does not collide with the vertical pattern of the door frame vigorously. ) Can be obtained.

However, the details and drawings of the invention of Patent Document 2 do not have a specific mention or suggestion as to how to apply the above items to a movable shoji that can be raised and lowered via a suspension member.
Published practical use Heisei 2-127700 gazette JP-A-9-250270

  An intended object of the present invention is to reduce (decrease) the falling speed before the movable obstacle moving up and down through the suspension material is completely closed (from the predetermined position to the closed position of the movable obstacle). The second purpose is that the movable shoji is fully lowered to the closed position in the event of an emergency when the suspension material is cut. As a result, the repair can be started immediately. The other is to drop the movable shoji as slowly as possible.

  A brake device for a movable shoji according to the present invention includes a bearing member fixed to a side end portion of a movable shoji that moves up and down via a suspension member, a gear supported by the bearing member, and a vertical frame of a window. The rack is fixed along the inner wall surface and meshes with the gear from the predetermined position to the closed position of the movable obstacle when the movable obstacle is lowered during normal time and emergency, respectively, and the hanging material is cut off. In the case of the time, when the movable obstacle is suddenly dropped, the falling speed of the movable obstacle is reduced by the meshing of the gear and the rack.

  Further, the brake device for movable shoji of the present invention includes a projecting member fixed in a protruding state at a side end portion of the movable shoji that moves up and down via a suspension member, and a bearing member fixed to a vertical frame of the window, The gear supported on the bearing member, the guide means disposed on the vertical frame, and in the normal time when the tension of the suspension is acting on the guide means, the return spring of the guide means It consists of an engaging arm member that is supported in the initial position by a spring force and has a rack in the vertical arm portion, and when the movable shoji is suddenly dropped in the case of emergency when the suspension member is cut, the protruding member is The engaging arm member is engaged, and the engaging arm member starts to move down against the spring force of the return spring together with the movable obstacle, and the rack meshes with the gear from the predetermined position to the closed position of the movable obstacle. Then, the falling speed of the movable shoji is reduced.

(A) When the movable shoji falls, the falling speed can be reduced (decreased) from the predetermined position to the closed position of the movable shoji.
(B) In an emergency when the suspended material is cut, the movable shoji is completely lowered to the closed position. Therefore, repair can be started immediately without lowering the movable shoji to the closed position.
(C) In some embodiments, the movable shoji decelerates and descends “slower”, so that the lower horizontal frame of the window frame can receive the lower end of the falling movable shoji with a soft touch.
(D) Since the brake works reliably in an emergency, the reliability is high.

  The best mode (first embodiment) for carrying out the present invention shown in FIGS. 1 to 5 will be described below.

(1) Environment for Implementing the Invention FIG. 1 is a schematic explanatory diagram showing the environment for implementing the invention. Since the brake device X of the present invention is the same on the left and right, only one (right side) configuration is specifically shown in the drawing. Here, reference is made to the environmental member with reference to FIG. In FIG. 1, 1 is a raising / lowering window. The raising / lowering window 1 is provided with an inner shoji 3 and a fixed outer shoji 4 which are movable up and down along the vertical frames 2A and 2B constituting the window in the internal space of the window frame 2 configured in a rectangular frame shape. . That is, at least the inner shoji 3 moves up and down in the window frame while being suspended by the pair of left and right suspension members 7.

  In addition, a pair of right and left winding means, for example, spiral spring type balancer devices 5 and 5 are arranged on the upper portions of the vertical frames 2A and 2B. From these winding means 5 and 5, for example, to the hanging drop point of the upper frame, respectively. Lower end portions 7a, 7a of a pair of left and right suspension members (for example, wires, ropes, etc.) 7 and 7 fed out through the provided guide pulleys 6 and 6 protrude from the side end portions 3a of the movable shoji 3. It is directly attached to the projecting member 11 fixed to.

  2C is a lower horizontal frame of the vertical frame, and FIG. 1 shows a state in which a gap 8 remains between the horizontal frame 2C and the lower end 3b of the movable shoji 3. In addition, FIG. 1 shows a state in which the movable shoji 3 is slightly raised upward, and before the gear and the rack are engaged.

  Further, the spiral spring type balancer device 5 keeps a mechanically balanced relationship with the weight of the inner shoji 3 by an installed spiral spring so that the inner shoji 3 can be easily opened and closed with a small force. It is possible to stop at the height position. Further, the outer shoji 4 can be similarly suspended as a movable shoji that can be opened and closed in the vertical direction by using a double balancer (not shown) disposed on the upper frame.

(2) Main components The specific requirements of the present invention will be sequentially described with reference to FIGS. In FIG. 2, for example, a protruding member 11 for a suspension material, a bearing member 15 for a gear, and a rack 21 can be seen in the vertical frame 2B. FIG. 3 shows that the rack 21 is fixedly provided in the vertical direction on the inner wall surface a of the vertical frame 2B.

  First, reference numeral 11 denotes a protrusion member for a suspension member that is suspended from the suspension member 7 and fixed to the side end portion 3a of the movable shoji 3 that moves up and down in the window frame. The projecting member 11 may be fixed at any location, for example, at an appropriate location on the side end 3a. Further, the shape of the protruding member 11 is also an arbitrary matter, for example, having a large-diameter protruding portion 12 extending on the inner wall surface of the vertical frame, and a small-diameter connecting portion 13 connected to the protruding portion 12, The connecting portion 13 is formed with an annular engaging groove 13a with which the lower end portion 7a of the suspension material is engaged.

  Next, reference numeral 15 is a gear bearing member fixed to the lower side of the side end 3 a of the movable shoji 3. The bearing member 15 is fixed to the end surface of the side end portion 3 a so as not to get entangled with the lower end portion 7 a of the suspension member 7. If it adds, the bearing member 15 is shifted and fixed to the back side of the movable shoji 3 so that it may remove | deviate from the suspending point of the suspending material 7. FIG. The bearing member 15 has, for example, a cross-sectional channel shape (U shape), and extends to a position substantially the same as the connecting portion 13 of the protruding member 11.

  Reference numeral 17 denotes a gear (pinion) that is rotatably attached to the bearing member 15 via a shaft (horizontal shaft) 16. The teeth of the iron gear 17 protrude from the protruding end of the bearing member 15 toward the inner wall surface of the vertical frame 2B.

  Next, reference numeral 21 is fixed along the inner wall surface a on the lower side of the vertical frame 2B of the window, and a predetermined position (near the position where the movable obstacle is closed) when the movable obstacle 3 is lowered during normal time and emergency. The rack meshes with the gear 17 on the bearing member 15 side. The rack 21 is made of a strip-shaped iron plate. The rack 21 of this embodiment includes a rack body 21a having engaging teeth on the front surface and a magnetic body (magnet) 21b fixed to the back surface of the rack body 21a along the vertical direction. The magnetic body 21b is a resistance means that gives rotational resistance to the gear. Therefore, the rack 21 is a magnetic body as a whole. Note that the engagement teeth of the rack 21 are somewhat separated from the lower horizontal frame 2C, as shown in FIG. 3, for example.

(3) Operation FIGS. 4 and 5 are explanatory diagrams when the movable shoji 3 is lowered from above toward the closed position. FIG. 4 shows a state in which the gear 17 on the bearing member 15 side is engaged with the rack 21 while being lowered at the normal time. On the other hand, FIG. 5 shows a state in which the gear 17 is engaged with the rack 21 in an emergency in which the suspension member 7 is cut.

  In the present embodiment, the movable shoji 3 is braked at normal times and in an emergency, and in particular, an emergency case in which the suspension member 7 is cut will be described. When the hanging material 7 is cut, the movable shoji 3 starts to fall vigorously due to its own weight. Therefore, as shown in FIG. 5, when the gear 17 on the bearing member 15 side starts to mesh from a predetermined position, the gear 17 meshes with the rack 21, and accordingly, the falling speed of the movable shoji 3 decreases. In this embodiment, since the rack 21 is a resistance means that gives the rotation resistance to the gear 17 (appropriate suction force), the brake is further applied, and the speed is increased in a state of "slipping, shifting, shifting". Weaken and fall. Therefore, the lower end 3b of the movable shoji 3 is received by the lower horizontal frame 2C of the window frame with a soft touch. Thereby, the intended object of the invention can be achieved.

(4) Second Embodiment Next, FIGS. 6 to 10 show a second embodiment of the present invention. This embodiment has the same purpose as the first embodiment. Therefore, substantially the same parts are denoted by the same or similar reference numerals, and redundant descriptions are omitted.

  First, a code | symbol is attached | subjected to a structural member. X1 is a brake device, and this brake device X1 is different from the first embodiment in that the gear 17A is arranged not on the movable shoji 3 but on the lower end portion of the vertical frame 2B via the bearing member 15A and the shaft 16A. Mainly different. In addition, the engaging arm member 41 having the rack 21 </ b> A is engaged so as to receive the projecting member 11 </ b> A that also serves as a suspension member protruding from the lower end portion (more precisely, the portion near the lower end portion) of the side end portion 3 a of the movable shoji 3. When the engaging arm member 41 receives the protruding member 11A, the engaging arm member 41 is positioned on the lower side of the vertical frame 2B and above the bearing member 15A. The point of lowering together with the movable shoji 3 through the guide means 31 arranged so as to be engaged, and the point where the lower end portion of the rack 21A of the engaging arm member 41 immediately engages when the engaging arm member 41 starts to descend. When the movable shoji 3 is raised, when the protruding member 11A is separated from the receiver 41c provided at the lower end portion of the engaging arm member 41, the initial position is obtained by the spring force of the return spring 35 constituting the guide means 31. The point of automatically returning to is the same as the first embodiment. Different.

(5) Basic configuration of the second embodiment The brake device X1 is fixed in a protruding state on the lower side of the side end portion 3a of the movable shoji 3 and fixed to the protruding member 11A and on the lower side of the vertical frame 2B of the window. The bearing member 15A, the gear 17A rotatably attached to the bearing member 15A via the shaft 16A, and the lower side of the vertical frame 2B and positioned above the bearing member 15A. In the normal state where the guide means 31 and the guide means 31 are always engaged with each other and the movable shoji 3 is raised by a predetermined distance or more, the engaging arm member 41 has a return spring of the guide means 31. 35. The engaging arm member 41 is supported at the initial position by the spring force of 35 and has a rack 21A on the vertical arm portion 41b. The raising member 11A engages with the receiver 41c at the lower end of the engaging arm member 41, and the engaging arm member 41 begins to descend against the spring force of the return spring 35 by the weight of the movable shoji 3. The rack 21A meshes with the gear 17A from a predetermined position near the movable shoji 3 is closed, and the falling speed of the movable shoji 3 is reduced.

  When the movable shoji 3 is lifted, when the protruding member 11A is separated from the receiver 41c of the engaging arm member 41, it is automatically returned to the initial position by the spring force of the return spring 35 constituting the guide means 31. Return to.

(6) Specific configuration of the second embodiment First, since the protruding member 11A has the same configuration as that of the first embodiment, the protruding member 11A has a connecting function for the suspension member 7 and is engaged with and disengaged from the engaging arm member 41. Has an engagement function. The protruding amount of the protruding member 11A is smaller than that of the first embodiment, but this is an arbitrary matter.

  Next, the bearing member 15 </ b> A is disposed at a position slightly spaced from the lower horizontal frame 2 </ b> C of the window frame. As shown in FIG. 7, this is to prevent the movable engaging arm member 41 that is lowered together from being obstructed when the movable shoji 3 is lowered to the closed position.

  Next, the gear 17A is provided with a resistance means 25, which will be described later, and this resistance means 25 is a viscous material filled in a reservoir portion 26 on one side of the gear. The viscous substance will be described with reference to FIG. 11 and FIG.

  Next, when the guide member 31 is based on the bearing member 15A or the gear 17A, the lower spring end support member 32 fixed to the inner wall surface a of the vertical frame 2B so as to be located at an upper position slightly spaced from the bearing member 15A. An upper spring end support member 33 fixed to the inner wall surface a of the vertical frame 2B so as to face the spring end support member 32 at a predetermined interval, the spring end support member 32, and the spring end support The upper and lower ends of the engaging arm member 41 are supported by the member 33 and extend and contract in the vertical direction. The upper spring end supporting member 33 is an upper end of the engaging arm member 41. The cylindrical portion 41a of the part has a vertical engaging column 34 that engages in a penetrating state. The engaging column 34 is fitted into the upper end portion of the return spring 35.

  Next, the upper end portion of the return spring 35 is in pressure contact with the lower surface of the tubular portion 41 a, while the lower end portion is externally fitted to an unnumbered column of the lower spring end support member 32. The return spring 35 contracts against the spring force when the engagement arm member 41 is lowered, and has a return force to return the engagement arm member 41 to the initial position.

  Next, the engaging arm member 41 includes the above-described cylindrical portion 41a, a vertical arm portion 41b extending vertically from the lower end surface of the cylindrical portion 41a, and a side end portion of the movable shoji 3 from the vertical arm portion 41b. The rack 21A is fixed to one side surface of the vertical arm portion 41b. As shown in FIG. 6, the receiver 41 c is normally located directly below the protruding member 11 </ b> A so as to stand by the protruding member 11 </ b> A of the movable shoji 3.

(7) Main action In the above configuration, the rack 21A of the engagement arm member 41 is engaged with the gear 17A from a predetermined position near the movable shoji 3 to close, and the falling speed of the movable shoji 3 is reduced. On the other hand, when the movable shoji 3 is raised, when the protruding member 11A is separated from the receiver 41c of the engaging arm member 41, it automatically returns to the initial position by the spring force of the return spring 35 of the guide means 31.

  Further, as shown in FIG. 10, in the event of an emergency when the suspension member 7 is cut, the gear 17A meshes with the rack 21A, so that the falling speed of the movable shoji 3 is reduced accordingly. In this embodiment, since the resistance means (viscous substance) 25 of the gear 17A gives rotational resistance to the gear 17A itself, the brake is further applied and the weight of the movable shoji is "slipping, shifting, shifting". Drop at a reduced speed. Therefore, the lower end 3b of the movable shoji 3 is received by the lower horizontal frame 2C of the window frame with a soft touch. Thereby, the intended object of the invention can be achieved.

  11 and 12 are characterized in that resistance means for providing rotational resistance to the gear 17 (17A) is provided for the gear 17 of the first embodiment and the gear 17A of the second embodiment. The resistance means 25 of the present invention is a viscous material filled in a pool portion 26 provided on the gear 17 (17A). This viscous material is a viscous semi-fluid, for example a silicon material.

  By the way, the reservoir portion 26 is a hollow chamber formed inside the gear 17 (17A), and the hollow chamber 26 is filled with, for example, a viscous silicon substance or a viscous lubricant (grease). A rotational resistance of the viscous material is generated between the outer peripheral surface of 16 (16A) and the inner peripheral surface forming the shaft hole of the gear 17 (17A).

  Of course, the reservoir portion 26 is not limited to the embodiment shown in FIGS. Although not particularly illustrated, for example, an annular lateral recess is formed on the inner surface of one side of the bearing member having a U-shaped cross section when viewed in plan view, and the gear 17 ( 17A), and a concave reservoir portion can be formed on the opposite side surface of the gear 17 (17A). When the design is changed in this way, the viscous material filled in the reservoir portion also causes rotational resistance of the viscous material on the one side inner surface of the bearing member that is in sliding contact with the opposite side surface of the gear 17 (17A).

  If the resistance means 25 which gives rotational resistance to the gear 17 (17A) having the above-described configuration is provided, the movable shoji 3 can be dropped as slowly as possible.

  In each embodiment of the present invention, for example, the rack 21 is fixed along the inner wall surface a on the lower side of the vertical frame 2B of the window, but the mounting position of the rack 21 and the gear 17 meshing with the rack 21 are fixed. The mounting position is optional. In short, the gear 17 may be engaged with the rack 21 or the rack 21A may be engaged with the gear 17A from the predetermined position to the closed position of the movable obstacle 3 when the movable obstacle 3 is lowered during normal time and emergency.

  The present invention is mainly used in the locksmith and joinery industries.

1 to 5 are explanatory views showing the best first embodiment of the present invention. FIGS. 6 to 10 are explanatory views showing the second preferred embodiment of the present invention, and FIGS. 11 and 12 are explanatory views showing examples of resistance means for giving rotational resistance to the gear.
BRIEF DESCRIPTION OF THE DRAWINGS Environment explanatory drawing provided with the brake device of 1st Example. Schematic explanatory drawing of the member located in a vertical frame. Explanatory drawing of the rack in a vertical frame. Explanatory drawing of the fall of the movable shoji in normal time. Explanatory drawing of the fall of the movable shoji in an emergency. Schematic explanatory drawing from the front view of 2nd Example (normal time). FIG. 7 is an explanatory diagram showing that the brake device is operating in FIG. 6 (normal time). The schematic explanatory drawing of the principal part (engagement arm member). Explanatory drawing which the movable shoji rose and the engagement arm member returned to the initial position. Explanatory drawing to the effect that the brake device is operating in an emergency when the suspended material is cut. The schematic explanatory drawing of the gearwheel 17 (17A) provided with the resistance means. Schematic cross-sectional explanatory drawing of the gear 17 (17A) provided with the resistance means.

Explanation of symbols

X, X1 ... Brake device, 1 ... Raising / lowering window, 2 ... Window frame, 2A, 2B ... Vertical frame, a ... Inner wall surface, 2C ... Lower horizontal frame, 3 ... Movable shoji, 3a ... Side end, 3b ... Lower end 4, outer shoji 5, hoisting means 7, suspension material 7 a, lower end portion 11, 11 A, projecting member 12, projecting portion 13, connecting portion 15, 15 A bearing member 16, 16 A Axis 17, 17 ... gear, 21, 21A ... rack, 21a ... rack main body, 21b ... magnetic body (magnet), 25 ... resisting means, 26 ... reservoir part, 31 ... guide means, 33, 33 ... spring end support member , 34 ... engagement column, 35 ... return spring, 41 ... engagement arm member, 41a ... cylindrical part, 41b ... vertical arm part, 41c ... receiver.

Claims (5)

A bearing member fixed to the side end of the movable shoji that moves up and down via the suspension material, a gear supported by the bearing member, and fixed along the inner wall surface of the vertical frame of the window; and The movable shoji consists of a rack that meshes with the gear from a predetermined position to a closed position of the movable shoji when the movable shoji is lowered during normal times and in an emergency. A movable shoji brake device, wherein when falling, the falling speed of the movable shoji is reduced by meshing between the gear and the rack. 2. The brake device for a movable shoji according to claim 1, wherein resistance means for imparting rotational resistance to the gear is provided on either the gear or the rack. 3. The brake device for a movable shoji according to claim 2, wherein the resistance means is a viscous material filled in a pool portion provided in the gear. 3. A brake device for a movable shoji according to claim 2, wherein the resistance means is a magnetic body provided on the rack along the vertical direction. A protruding member fixed in a protruding state to a side end portion of a movable shoji that moves up and down via a suspension member, on the other hand, a bearing member fixed to a vertical frame of a window, a gear pivotally supported by the bearing member, In the normal state when the guide means arranged in the vertical frame and the tension of the suspension material is acting on the guide means, it is supported at the initial position by the spring force of the return spring of the guide means, and the vertical arm An engaging arm member having a rack at a portion thereof, and in the case of an emergency in which the suspension member is cut, when the movable shoji suddenly falls, the projecting member engages with the engaging arm member, and the engaging arm The member starts to move down against the spring force of the return spring together with the movable obstacle, and the rack meshes with the gear from a predetermined position to the closed position of the movable obstacle to reduce the falling speed of the movable obstacle. Brake device for movable shoji.

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