JPH074752U - Balancer for hanging windows - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a balancer for a raising / lowering window, which has a simple structure and can easily adjust the lifting force. A coil spring 11 having a locking portion 13 for suspending a shoji at its tip is housed in a case 12 so as to be able to be drawn out, the case 12 is formed to be vertically connectable, and the vicinity of the tip of the coil spring 11 is formed. Other case 1 connected to
The locking portion 1 of the coil spring 11A which is extended from 2A.
An engaging portion 14 that engages 3A is formed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a balancer for a raising / lowering window, and more particularly to a balancer for a raising / lowering window provided to suspend a shoji which is provided in a window frame so as to be able to move up and down and reduce the opening / closing force of the shoji.

[0002]

[Prior art]

 Conventionally, balancers of various configurations have been used to reduce the opening / closing force of the shoji screens of the raising / lowering windows. Generally, this type of balancer basically uses the elastic restoring force of a spring, and is usually formed so that the lifting force can be adjusted according to the weight of the shoji screen.

On the other hand, in recent years, heat-insulating sashes and sound-proof sashes in which glass is arranged in double are often used from the viewpoint of energy saving and soundproofing measures. Since the weight of the shoji increases in the double-arranged double-window glass, it is necessary to prepare a strong balancer or adjust the balancer's lifting force to achieve an appropriate balance. Needs to be maintained.

[0004]

[Problems to be solved by the device]

 However, when preparing multiple balancers with different capabilities, it is necessary to prepare a large number of balancers according to the size and weight of the windows, which is a factor of cost increase in various aspects such as production, inventory, and distribution. There is a problem that occurs. Also, when adjusting the lifting force, the adjustment range becomes large in order to respond to the weight change of one glass piece, not only the adjustment itself is troublesome, but also the left and right balance may not be balanced, There was a problem that the adjustment work did not go smoothly.

Therefore, the present invention has an object to provide a balancer for a raising / lowering window which has a simple structure and can easily adjust the lifting force.

[0006]

[Means for Solving the Problems]

 In order to achieve the above object, the balancer for a lifting window of the present invention is a balancer for a raising and lowering window in which a shoji that raises and lowers in a window frame is suspended by a coil spring wound with a long thin leaf spring. A coil spring with a locking portion for suspending a shoji screen is housed in a case so that it can be extended, and the case is formed so that it can be connected vertically, and it is extended from the other case connected near the tip of the coil spring. It is characterized in that an engaging portion that engages with the engaging portion of the coil coil is formed.

[0007]

[Work]

 The balancer with the above-described configuration is set, for example, so that a normal single-layer glass shoji can be opened and closed with a light force, and when suspending a double-glazing shoji, the balancer can be moved up and down two times. One or three or more of them are connected to each other, and the locking part of the tip of the coil spring extended from one balancer is engaged with the engaging part of the tip of the coil spring extended from another connected balancer to increase the lifting force. It can be changed to double or triple. At this time, the coil spring and the shoji screen can be connected to each other by using the locking portion that is not engaged with the engaging portion, so that the same locking means can be used regardless of the number of glasses. Therefore, one type of balancer can handle shoji of various weights.

[0008]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. 1 is a perspective view showing an embodiment of the balancer of the present invention, FIG. 2 is a front view, FIG. 3 is a side view, FIG. 4 is a sectional side view, FIG. 5 is a front view of a coil spring tip, and FIG. It is a front view of a window.

First, as shown in FIG. 6, the raising / lowering window using the balancer 10 according to the present invention is arranged in the same manner as the ordinary raising / lowering window so that the shoji 2 can be moved up and down in the four-sided window frame 1. The locking device 3 is provided in the assembling section, and the shoji 2 is suspended by the balancer 10 attached to both vertical frames 1a, 1a, and the shoji 2 can be opened and closed with a light force. ing.

As shown in FIGS. 1 to 5, the balancer 10 includes a coil spring 11 formed of a leaf spring formed by bending a long thin metal sheet with a constant curvature over the entire length, and a coil spring 11 in a case 12. The tip of the coil spring 11 is housed so that it can be extended, and at the tip of the coil spring 11, there is formed a locking portion 13 that is notched on both sides and has a substantially T-shape, and is slightly closer to the base side than the locking portion 13. The engaging portion 14 is formed by punching in a convex shape.

The case 12 is composed of a case body 15 and a back cover 16. The case body 15 has a shaft portion 18 for rotatably supporting a roller 17 for holding the coil spring 11 in a rotating function. A fixing screw insertion hole 19 is provided, and a fitting convex portion 20 and a fitting concave portion 21 for connecting the balancer 10 are provided above and below the insertion hole 19.

The back cover 16 is fixed to the case body 15 by fitting the boss portion 22 into the shaft portion 18 of the case body 15 after the coil spring 11 and the roller 17 are assembled. A similar through hole 23 is formed at a position corresponding to the insertion hole 19 of the case body 15.

The balancer 10 configured as described above is fixed to the vertical positions of the vertical frames 1a, 1a of the raising and lowering windows with screws or the like, and the engaging portion 13 at the tip of the coil spring 11 extended from the case 12 is It is used in a state of being locked to the lower end of the shoji 2 by using an appropriate connecting metal fitting as necessary. At this time, in the case of a single-layer glass shoji, by setting the ability of the coil spring 11 so that it can be balanced by one balancer 10 on each of the left and right sides. It suffices to mount one balancer 10 on each of the left and right sides, and the balancer 10 can be installed by a simple operation.

If the shoji 2 is heavy, such as a heat-insulating sash having double glass, the balancers 10 and 10A are connected in the vertical direction as shown by an imaginary line in FIG. The fitting convex portion 20 and the fitting concave portion 21 are fixed to both vertical frames 1a, 1a in a fitted state, and the engaging portion 13A of the coil spring 11A extended from the balancer 10A located on the upper side is attached to the lower portion. The engaging portion 14 of the coil spring 11 extended from the side balancer 10 is engaged.

As a result, the balancers 10 and 10A can be integrated, the lifting force can be approximately doubled, and the shoji 2 and the coil spring 11 can be connected to each other by the engagement of the coil spring 11 on the lower side. Since the stopper 13 only needs to be connected and locked to the shoji 2, it can be easily performed as in the case of the above normal raising / lowering window. Further, since the case 12 is formed so as to be fitted to each other when the case 12 is arranged vertically, the case 12 can be easily positioned and attached. In addition, when the weight of the shoji screen 2 becomes three times or more due to the size of the window or the like, it can be dealt with by connecting three or more balancers 10 in the same manner as described above.

The balancer of the present invention is not limited to the above shape, and it is also possible to prepare a plurality of coil springs having different capabilities and combine them appropriately.

[0017]

[Effect of device]

 As described above, the balancer for the raising and lowering window of the present invention has the coil spring housed in the case formed so as to be vertically connectable, and the tip end of the coil spring is formed so as to be engageable, so that the balancer is like a heat insulating sash. In the case of a heavy shoji with double glass, it is possible to obtain an appropriate lifting force by connecting two or more pieces, and it is possible to easily cope with various weights.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a balancer of the present invention.

FIG. 2 is a front view of the same.

FIG. 3 is a side view of the same.

FIG. 4 is a sectional side view of the same.

FIG. 5 is a front view of a tip end portion of a coil spring.

FIG. 6 is a front view of a raising / lowering window.

[Explanation of symbols]

 10 Balancer 11 Coil Spring 12 Case 13 Engagement Part 14 Engagement Part 15 Case Main Body 16 Back Lid 17 Roller 20 Fitting Convex Part 21 Fitting Recessed Part

Claims (1)

[Scope of utility model registration request] Claim: What is claimed is: 1. A balancer for a raising / lowering window in which a shoji sliding up and down in a window frame is suspended by a coil spring formed by winding a long thin leaf spring. An engaging portion that is housed in a case that can be extended and that is formed so that the case can be vertically connected, and that engages with the locking portion of the coil spring that is extended from another connected case in the vicinity of the tip of the coil spring. A balancer for a raised / lowered window, which is characterized in that