JPH0356621Y2 - - Google Patents

Description

[Detailed description of the invention] [Purpose of the invention] (Field of industrial application) The present invention relates to a balance mechanism for a rising window that can be used for a rising window.

(Prior Art) A conventional balance mechanism for a rising window requires wires, pulleys, springs, wire hanging fittings, and the like. An example of this conventional balance mechanism for a rising window will be explained with reference to FIG. 1. 1 is the outer frame of the rising window;
Guide rails 2 are fixed to the left and right inner sides (one side is omitted) of the outer frame 1, and the guide rails 2
The left and right window frames 4, 4 of the rising window 3 are slidably engaged with the guide grooves so as to be able to move up and down.

Door hanging fittings 6, 6 are fixed to the upper left and right sides of the upper frame 5 of the rising window 3, and a wire 7 whose lower end is locked to the hanging fittings 6 rises vertically along the inner surface of the outer frame 1. , is hung on a pulley 9 attached to a base plate 8 fixed to the outer frame 1, changes direction, and is wound around a drum 10. A spiral spring (not shown) is provided within the drum 10 and is biased to rotate the drum 10 in a direction in which the wire 7 is wound. Although not shown, a drum for winding the wire 7 on the left side is also installed in parallel with the drum shown.

In FIG. 1, in order to lower the rising window 3 which is in the raised position due to the wire 7 being wound around the drum 10 by a spiral spring (not shown), the tension of the spiral spring is reduced by placing your hand on the window frame and pushing it down. The rising window 3, which was balanced in the raised position, descended easily due to the force of the hand pushing it down and the weight of the window, and even when the hand was released at the lowered position, the rising window 3 did not rise and remained balanced in that position. It's stopped. Next, to raise the window, put your hand on the window frame and lift it. The sum of this lifting force and the biasing force of the spiral spring overcomes the weight of the rising window 3, and the window can be easily raised with a light force. You can open the window.

(Problem to be solved by the invention) As described above, the mechanism shown in Fig. 1 has no problem in balancing the rising window, but the upper part of the rising window 3 at the upper limit position has a base plate. Since it is necessary to install the drum 10, pulley 9, etc., extra space is required for these installations.
Due to this space, there were drawbacks such as a reduction in the opening area of the lower window.

SUMMARY OF THE INVENTION The present invention aims to solve the above-mentioned drawbacks of the prior art and provides a balance mechanism for a rising window that eliminates the conventional wire storage space and widens the opening area of the window.

[Structure of the idea]

(Means for Solving the Problems) In order to achieve the above object, the present invention fixes the window glass with the left and right side plates, the upper frame, and the lower frame, which are slidably engaged with the guide rails provided on the left and right inner surfaces of the outer frame. In the rising window that goes up and down along the guide rail, the left and right guide rails are divided into upper and lower parts, and
A single continuous compression spring is inserted vertically into each guide groove, the lower end of the spring is fixed to the lower part of the outer frame, and the upper end surface is always in contact with a hanger protruding from the left and right sides of the upper frame. A lock pin retaining plate is fixed to the lower half of the left and right guide rails, and a lock hole is provided in the lock pin retaining plate. , a locking lever having a locking pin protruding from the side plate at all times but retractable by lever operation is attached to the lower half between the left and right side plates, and the locking pin is removable from the locking hole. It is intended to be a means to solve problems.

(Function) When the rising window is lowered, the compression spring is pushed by the hanger, and its length contracts while being guided by the guide groove, and when the rising window is raised, it expands due to the compressive force and pushes up the rising window via the hanger. In the raised position, the rising window is supported by left and right compression springs and balanced.
Falling is prevented.

(Embodiment) An embodiment of the present invention will be described below with reference to the drawings. Fig. 2 is a perspective view of a wall surface to which a rising window 11 is attached showing an embodiment of the present invention, and Fig. 3 is a perspective view of the rising window 11.
FIGS. 4 and 5 are enlarged sectional views A to A and B to B of FIG. 2, respectively.

Now, in the figure, the outer frame 12 is fixed around a window opening provided in the wall 13, and the upper half of the outer frame 12 is fitted with a closing window 14, and the lower half of the outer frame 12 is fitted with a rising window 11. It is arranged so that it can go up and down inside the killing window 14. Guide rails 15, 15 are fixed to the left and right inner surfaces of the outer frame 12 by screws 16 over the top and bottom.

A compression coil spring 1 is attached to the guide rail 15.
7 and a guide surface 21 that guides the protrusion 20a of the resin guide member 20 fixed to the left and right side frames 19, 19 of the rising window 11 are formed over the entire vertical length. Further, a lock pin retaining plate 30 is fixed to the lower half of the guide rail 15, and a lock hole 31 is provided in the lock pin retaining plate 30. A window glass 22 is fixed to the inside of the side frame 19 via a sealing member 23, and the window glass 22 is fixed by the side frames 19, 19, upper frame 24, and lower frame 25, and the rising window 11 is thereby fixed. It is configured. Although two compression coil springs 17 are provided, only one compression coil spring 17 may be provided, or a compression gas spring may be used instead of the compression coil spring. In Fig. 2, the fill-in window 14 is on the upper side, but it is provided on the lower side,
The rising window 11 may be provided on the upper side.

26, 26 are hangers fixed to the upper surface of the upper frame 24 by screws 27 so as to protrude from side to side, and the lower surface 26a of the hanger 26 is always in contact with the upper end surface of the spring 17. This is because, as shown in FIG. 6, when the rising window 11 is raised, the natural length of the compression coil spring 17 is formed to be approximately the same as the height of the outer frame 12, and when the rising window 11 is lowered, as shown in FIG. This is because the spring 17 is pressed against the lower surface 26a of the hanger 26 and compressed. 2
Reference numeral 8 denotes a locking pin. When the locking lever 29 attached to the lower half between the left and right side plates 19 is pushed down, the locking pin is retracted from the protruding position shown in the drawing and is removed from the locking hole 31 of the locking pin retaining plate 30, and the rising window 11 is removed.
becomes possible to rise. Furthermore, an opening 18a is provided inside the guide groove 18 so that the hanger 26 can pass therethrough.
is provided.

Next, to explain the operation of the embodiment described above, first, in order to open the rising window 11 from the closed state shown in FIG. If lifted, the rising window 11 will rise slightly. This is because the pressing force of the hanger 26 against the compressed compression coil spring 17, which had been compressed as shown in FIG. Specifically, the compression coil spring 17 is expanded as shown in FIG.

Next, to close the window from the state shown in FIG.
While compressing the compression coil spring 17 via the compressor, the weight of the rising window 11 is added with a manual pushing force, so that the rising window 11 easily descends. The strength of the compression force of the compression coil spring 17 is appropriately determined in accordance with the weight of the rising window 11. Further, the spring constant is determined to be small so that the strength of the compression force does not change greatly depending on the amount of compression of the spring 17. Therefore, even if the pushing up force or pushing down force is removed in the middle of opening and closing, the rising window 11 will not move upward or downward due to a change in the strength of the compression force of the compression coil spring 17. This is sufficiently prevented by the frictional force between the guide rail 21 and the guide rail 21. Therefore, the rising window 11 is held at the halfway position. Also, whether to use two or one, the weight of the rising window,
Determined according to the dimensions.

[Effect of idea]

As explained in detail above, the present invention has a single compression spring inserted vertically and continuously into the guide groove, so there are fewer components and fewer sliding parts, so the sliding resistance is lower than that of the conventional one. The balance performance of the spring will not be impaired due to the large sliding resistance. That is,
In the present invention, since the compression spring is inserted into the guide groove of the guide rail, there is no risk that the compression spring will bend when contracted, and will not interfere with the smooth lowering of the rising window. In addition, the balance mechanism consists of a compression spring, a guide groove provided on the guide rail, and a hanger provided on the rising window, and the locking mechanism is installed in the lower half of the guide rail, which is divided into two parts. , disposing the spring in a compressed state on the guide rail side of the lower half where the locking mechanism is disposed;
In addition, by locking the lower half of the guide rail with a temporary fixing pin, the lower half of the guide rail can be configured as a single unit having all the components of the balance mechanism. As a result, during assembly, the compression spring can be installed on the guide rail at a different location from the assembly of the entire rising window, and after this unit is assembled to the outer frame at the work site, it can be temporarily fixed. Assembling to the window is completed by simply removing the pin, which not only improves the ease of assembly, but also makes it easy to install and remove during maintenance. The number of points is small and the cost is low.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway perspective view of a conventional balance mechanism for a rising window, Fig. 2 is a perspective view of a wall section equipped with a rising window showing an embodiment of the present invention, and Fig. 3 is an embodiment of the present invention. FIG. 4 is a sectional view from A to A in FIG. 2, FIG. 5 is a sectional view from B to B in FIG. 2, and FIG. FIG. 7 is an explanatory diagram at the time of descent. Explanation of the main parts of the figure, 11... rising window, 12...
... Outer frame, 15 ... Guide rail, 17 ... Compression spring, 18 ... Guide groove, 19 ... Side frame,
20...Guide member, 20a...Protrusion part, 21...
...Guide groove, 24...Top frame, 26...Hanger,
26a... lower surface.

Claims (1)

[Scope of utility model registration request] The window glass is fixed by the left and right side plates, the upper frame, and the lower frame that slide and engage with the guide rails provided on the left and right inner surfaces of the outer frame, and the left and right guide rails are fixed in the rising window that goes up and down along the guide rails. It is divided into upper and lower parts, and a single continuous compression spring is inserted vertically into each guide groove, and the lower end of the spring is fixed to the lower part of the outer frame, and the upper end surface is attached to the left and right sides of the upper frame. The natural length is formed to be approximately the same as the height of the outer frame so that the lock pin is always in contact with the protruding hanger, and a lock pin retaining plate is fixed to the lower half of the left and right guide rails, and
A locking hole is provided in the locking plate, and a locking lever having a locking pin that normally protrudes from the side plate but is retracted by operation is attached to the lower half between the left and right side plates, and the locking pin is inserted into the locking plate. A balance mechanism for a rising window, characterized in that it can be engaged and detached from a hole.