JP4189832B2 - Balancer receiver with drop prevention function - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention is a window frame when relates balancer over receiving the window provided the balancer over so that it is possible to a window sash that moves up and down stationary in any position, the window sash, especially longer balancer over the function drops by its own weight are those hand, it relates to anti-drop function with balancer over received you not to pinch the finger between the lower frame and the window sash of.
[0002]
[Prior art]
As the balancing device of vertical movement window balancer chromatography using a torsion spring it is known. The balancer chromatography is fixed to one end of the tube to the top of the vertical frame of the window frame, rotatably mounted nut at the bottom of the cylindrical, helical rod to be screwed into the nut into the cylinder from the lower end of the above cylindrical A torsion spring having an end fixed to the nut and the other end fixed to the cylinder so as to be inserted when the nut is rotated by the spiral rod into the cylinder is provided. With this configuration, when the spiral rod is lowered, the nut rotates and winds the torsion spring, while the torsion spring acts to reverse the nut by the spring force in the rewinding direction and raise the spiral rod. To do. Therefore, when the helical rod pulled up by the spring force of the torsion spring is connected to the window screen and a spring force that balances the weight of the window screen at the maximum rising position of the window screen is given to the torsion spring, The spring and the window screen are always balanced so that the window screen can be stopped at an arbitrary position, and the window screen can be moved up and down with a small force.
[0003]
As described above, the balancer over, since is configured so as to balance by the spring, cut or the spring, when the fixing portion of the spring or broken, the spring force is lost, the window sash drops suddenly. For this reason, there is a risk that a hand, a finger or the like may be sandwiched between the lower frame of the window frame and the lower edge of the window shoji.
[0004]
[Problems to be solved by the invention]
Resolution object of the present invention to provide a window sash with a balancer over receiving for mounting the balancer over the above, the window sash even spring force disappears is rapidly dropped hand, so as not to pinch the finger it is to provide a fall protection with balancer over received that.
[0005]
[Means for Solving the Problems]
According to the present invention, by rotating the torsion spring by a spiral rod which is connected to the window sash to move up and down, window balancer over which is adapted to raise the window sash helical rod by the spring force of the torsion spring can rest in any position in the balancer over support, mount the receptacle body to guide the said window sash to the window sash moves vertically along the window frame to the window sash, the balancer over the support for supporting the lower end of the spiral rod to the receptacle body the body and slide levers being biased to be projected in the transverse direction is held in engagement with the retracted position to the balancer over the support provided, when the window sash and the spring force is lost drops, the slide lever Remove the engagement between the over urges movably the balancer over the support downwards to the slide levers are moved to the protruding position, so that the slide levers projecting from the receptacle body is engaged Stop on the window frame Receiving balancer over with drop prevention function provided over is provided, the problems are solved.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
The drawings show one embodiment of the present invention. In the figure, at the lower part of the window screen (1), a receiving body (3) for guiding the window screen (1) so that the window screen (1) moves up and down along the vertical frame (2) of the window frame. Is installed. The receiver body (3) is formed in a substantially L shape having a mounting part (4) along the lower side of the window screen (1) and an upright part (5) along the side, and is attached to the mounting part (4). Has a hole (7) through which the mounting screw (6) is inserted.
[0007]
The upright portion (5) of the receiver body (3) is slidably inserted into the vertical frame (2), is formed in a substantially box shape having a void (8) therein, and extends from the upper side to the end side. It has an opening (9) cut obliquely towards it. A vertical groove (11) having an open lower end is formed on the inner surfaces of the side walls (10) and (10) of the upright portion (5), and a rib (12) provided on the outer surface is formed on the vertical frame (2). Opposing guide protrusions (13) are formed. Further, slide grooves (15), (15) are formed in the end wall (14) of the upright portion (5) and open in the direction of the mounting portion (4).
[0008]
Standing part of the receptacle body (3) to (5), the balancer over support for supporting the lower end of the spiral rod of the balancer over (16) (17) is provided. Above the spiral rod (16) of said balancer over, cylinder for accommodating the torsion spring and the torsion spring not shown, rotatably mounted in the barrel for involving torsion spring該螺旋杆is screwed nut etc. known member is provided and pulled the spiral rod (16) so as to balance the weight of the window sash upwards by the balancer over constituted by these members.
[0009]
The balancer over the support (17), as shown in FIGS. 1 and 2, for hooking the pin (18) by inserting the spiral rod (16) from the lower end, the hook (19) projecting in opposite directions , (19) at the lower end of the side plates (20), (20), the side plates (20), (20) are formed with flanges (21), (21) and bent upward in the lateral direction An upper plate (22) is provided, and a lower side is provided with a locking plate (23) that is bent substantially horizontally in the direction of the mounting portion (4) and the tip thereof is further bent downward. The balancer over the support (17), said upstanding section plug (5) above the longitudinal grooves (11) the flange (21) from the lower end opening of the ceiling of the upper plate (22) is standing part (5) It is incorporated in the upright portion (5) so as to be movable downward from a position where it abuts the lower edge (25) of the plate (24), and between the upper plate (22) and the top plate (24) of the upright portion (5). spring (26) to bias the balancer over support (17) downward is provided. The lower the standing portion of the upper plate (22) of the balancer over the support (17) to (5), the stopper over the pin (27) for limiting the movement of the balancer over the support (17) provided cage, the spring force of the spring (26), the balancer over the torsion spring (not shown) smaller than the spring force of, also is used a compression spring may be provided a spring tension at appropriate positions, optionally May be biased downward using an appropriate weight with the spring omitted.
[0010]
Mounting portion of the receptacle body (3) (4) to the slide levers (28) is provided, the slide levers (28) is held by cover (29) attached to the unit with said mounting (4) ing. The slide levers (28) is formed in a substantially U-shaped cross section, the side plates (30), tip portion is the standing portion (30) the slide groove (5) (15) is inserted in (15), Between the retracted position shown in FIG. 1 and the protruding position shown in FIG. Mounting portion of the formed upright plate to an intermediate portion (31) and said receptacle body (3) of the slide levers (28) while receiving surface formed in (4) (32) is provided with a spring (33) While the slide levers urges toward the protruding position, the spring is or provided to other appropriate positions, may be used tension spring.
[0011]
The slide levers (28), in normal use, is held in the retracted position by the balancer over support that is pulled upward (17). In the figure, the slide lever abutment plate chromatography (28) to form a (34), the abutment plate (34) is engaged with the locking plate (23) of the balancer over support in a retracted position (17) are then way, but can also be locked in other suitable configurations, the end of the tip portion of the slide levers (28) in this state (35), receptacle standing part of the body (3) (5) It does not protrude from the wall (14). Incidentally, the lower end of the standing upright portion (5) is standing part cover which is formed substantially U-shaped cross section (36) is removably mounted by a leaf spring material or the like.
[0012]
Above the window frame jamb (2), between the lower frame of the underline and the window frame of the window sash (not shown), at least a hand, the stopper over to a position that exists apart as not to pinch the finger or the like ( 37) is provided. The stopper chromatography (37), the rear surface of the vertical frame (2) provided with a back plate (38) is attached with screws (39), but may be a stopper over by cutting and raising a part of the vertical frame, It can also be provided at a plurality of locations. The stopper chromatography (37) is in normal use is in position does not interfere with lowering of the window sash, at the position protruding from the slide levers (28) are receptacle body (3), the slide levers ( It protrudes from the surface of the vertical hook so that the tip (35) of 28) is engaged.
[0013]
And Thus, in a normal state, the spiral rod (16) and the balancer over the support (17), because they pulled upward by the spring force of the torsion of the balancer over, not shown spring, as shown in FIG. 1 the balancer over the support (17) abuts, also the balancer over the support the upper plate standing portion (22) of the receptacle body (3) (5) the lower edge of the top plate (25) (17) the slide levers and abutment plate in the engagement plate which is formed in the lower (23) (34) hit (28) is held in the retracted position, the distal end portion of the slide levers (28) (35) receptacle It does not protrude laterally from the standing part (5) of the main body (3). Thus, as an ordinary balancer over with a window sash is moved up and down the window sash can be stationary at any position.
[0014]
When the spring force cutting other causes torsion spring is lost, the spiral rod (16) and the window sash (1) and the like is started to descend by its own weight, whereby the balancer over the support (17), a spring ( is moved downward by 26), out locking plate (23) from the contact plate (34), the slide levers (28) is moved to the protruding position by a spring (33) (Figure 3). The tip of the the stopper chromatography (37) provided on the vertical frame (2) slide levers (28) (35) is lowered at the engaged position is blocked, the hand at the bottom of the window sash (1), A finger or the like can be prevented from being caught. In the case of repairing the balancer over it may be performed to remove the a removed spiral rod (16) the upright part cover (36) from the balancer over the support (17).
[0015]
【The invention's effect】
The present invention is configured as described above, and a torsion spring is rotated by a spiral rod connected to a vertically moving window screen, and the spiral rod is pulled up by the spring force of the torsion spring so that the window screen can be stopped at an arbitrary position. in the balancer over support of the window balancer over, attach the receptacle body for guiding the window sash to the window sash moves vertically along the window frame to the window sash, supported lower end of the spiral rod to the receptacle body the balancer chromatography support and said balancer over the support is held in engagement with the retracted position to the biased can protrude laterally slide levers for providing, when the window sash is lowered by the spring force disappears , remove the engagement of the slide levers urges movably the balancer over the support downwards to the slide levers are moved to the protruding position, the slide levers projecting from the receptacle body engagement Windows to match Because provided stopper over to normal can be used as an ordinary balancer over with a window sash, stopping the descent of the window sash by sliding levers projecting in the middle even if drop window sash when the balancer over fails Can be used safely without pinching fingers or the like.
[Brief description of the drawings]
1A and 1B show an embodiment of the present invention, in which FIG. 1A is a cross-sectional view, and FIG.
FIG. 2 is an exploded perspective view.
3 is a cross-sectional view of when the spring force of the balancer over disappeared.
[Explanation of symbols]
1 Window shoji 2 Vertical frame 3 Base body 4 Mounting part 5 Standing part
16 Spiral fence
17 balancer over support
19 Hook
22 Upper plate
23 Locking plate
24 Top plate
28 slide levers
29 cover
34 Contact plate
35 Tip
37 stopper over

Claims (4)

Rotating the torsion spring by a spiral rod which is connected to the window sash to move up and down, in the balancer over support of the the window balancer over as raising window sash helical rod by the spring force of the torsion spring can rest in any position, Install the receptacle body for guiding the window sash to the window sash moves vertically along the window frame to the window sash, the balancer over the support and the balancer over the support for supporting the lower end of the spiral rod to the receptacle body body engaging the slide levers which projects capable biased laterally held in the retracted position provided, when the window sash and the spring force is lost drops, the engagement of the slide levers the slide levers urges movably the balancer over the support to move to the protruding position downwardly removed, the stopper over the window frame so that the slide levers projecting from the receptacle body is engaged Fall provided Received balancer over with stop function. The balancer over support receptacle has a flange to be inserted into the longitudinal groove formed in the body, it is movable from a position corresponding to the lower edge of the top plate of the upper plate receptacle body formed in top to bottom, receiving balancer over with drop prevention function according to claim 1 in which the spring on the upper plate and the top plates are provided. The balancer over the support receives the balancer over with drop prevention function according to claim 1 or 2 having a hook for holding the pin provided in a spiral rod. The balancer over the support has a locking plate, the slide levers receives balancer over with drop prevention function according to claim 1 having a contact plate engageable with the engaging plate.

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