US2311300A

US2311300A - Control mechanism for shutters

Info

Publication number: US2311300A
Application number: US302977A
Authority: US
Inventors: Ralph R Dubour; Lemual G Brown
Original assignee: J E BUSH
Current assignee: J E BUSH
Priority date: 1939-11-06
Filing date: 1939-11-06
Publication date: 1943-02-16
Anticipated expiration: 1960-02-16

Description

Feb. 16, 1943. R. R. DUBOUR ETAL 2,311,300

CONTROL MECHANISM FOR SHUTTERS Filed Nov. 6, 1939 2 Sheets-Sheet 2 I A TTORNE Y [N VENTORS fiumr, 40

62 raw.

Ralph Le/mm/ m 0. z fl n9 4 I l m 7 Petented Feb. 16, 1943 v CONTROL MECHANISM FOR SHUTTEB Ralph R. Dubour and Lemual G. Brown. Oklahoma City, Okla, assignoraby meme assignments, to J. F. Bush, Dallas, Tex.

Application 4 Claims.

This invention relates to a control mechanism particularly for actuating the louvers in shutters of the type disclosed in our copending application, Serial No.v 302,976, filed of even date herewith, and has for its principal object to provide a control mechanism of this character that is of simple and inexpensive construction and capable of operation from the interior side of a window.

Other objects of the invention are to provide a control mechanism constructed so that it may be operated through a window-screen interposed between the shutters and the sash of a window; to provide a lever arrangement capable of locking the shutter louvers in closed position; to provide a control mechanism constructed to swing the louvers above horizontal position; and to provide the control mechanism with an actuating lever which is not likely to be damaged by the window-sash.

It is a further object of the invention to provide a control mechanism designed for use with a key type operating crank.

In accomplishing these and other objects of the invention, as hereinafter pointed out, we have provided improved details of structure, the preferred forms of which are illustrated in the accompanying drawings, wherein:

Fig. 1 is a perspective view of the interior side of a window equipped with an external shutter operated by a control mechanism embodying the features of the present invention, a portion of the window-screen being broken away to better illustrate the control mechanism and connection thereof with the louvers of the shutter.

Fig. 2 is a horizontal section through the window. v

Fig. 3 is a vertical section on the line 3-4 of Fig. 2.

Fig. 4 is a fragmentary perspective view of the window and shutter, particularly illustrating the position of the control parts when the louvers of the shutter are in horizontal position.

Fig. 5 is a similar view showing the position of the control parts when the louvers are closed.

Fig. 6 is a perspective view, similar to Fig. 4, but illustrating a modifled form of the invention.

Referring more in detail to the drawings:

I designates a window including a frame 2 having

vertical ways

3 and 4 for slidably mounting the customary sash 5. Supported at the outer side of the window-frame, and seated against the blind stop 8. is a window-screen November 6, 1939, Serial No. 302,977

frame I carrying a screen wire 8 secured to the innen side thereof as clearly shown in Fig. 2.

Fixed to the outer side of the frame I is a shutter unit 9, having a frame including side stiles I0 and H provided with outwardly extending flanges i2 and I3 carrying trunnions I4 and IS on which louvers I! are pivotally supported. The louvers have depending flanges I1 and II at the ends thereof, provided with bosses l8 having openings 20 for passing the trunnions it and it as clearly shown in Fig. 2, whereby the louvers are adaptedto swing through a substantially horizontal position as shown in Figs. 3 and 4,- to a vertical and closed position as shown in Fig. 5. All of the flanges of the louvers are connected at their inner ends by rods or links 2| and 22, the links being connected by pivot pins or rivets 23, so located with respect to the axes of the trunnions that the links will clear the flanges l2 and I! when the louvers are in closed position, as shown in Fig. 5and so that they are'entirely located within the depth of the frame and not project from the inner face side which carries the screen. With this construction it is obvious that reciprocation of either one of the links or rods 2| or 22 will effect movement of the louvers through any position from open to the completely closed position shown in Fig. 5.

The structure thus far described specifically forms no part of the present invention as it is covered in the above mentioned copending application, the specific structure being illustrated to give a better understanding of the control mechanism to which the present application is directed. v 7

The control mechanism includes a bracketplate 24 interposed between one side of the 'screen wire and the interior face of one of the side stiles 25 of the window-screen frame I to cooperate with an inner bracket 26. The inner bracket 26 has a foot portion 21 interposed betwcen the inner face of the screen wire 8 and the screen retaining strip or moulding 2'. The innerbracket also includes a flange 29 turned inwardly and terminating in an car 30 located in spaced parallel relation with a similar portion 3| of the bracket plate "24, which projects from the inner edge of the screen frame as shown in Fig. 2.

The portion 3| of the bracket plate and the ear 30 are provided with registering

bearing openings

32 and 23 which rotatably mount a crank-shaft 34. The crank-shaft 34 includes a shaft portion 38 that extends through an opening in the screen and is rotatable in the

hearing openings

32 and 33. The inner end of the shaft portion has a crank 316 terminating in a handle 31. The opposite end of the shaft portion has a lever arm 38 extending substantially in the plane of the crank and adapted to swing in an are over the outer face of the bracket plate 24. The end of the lever arm is connected by a pivot 33 with a link 40, having its opposite end connected with a bolt 4|, replacing one of the pivot pins 23 previously mentioned.

The link 40 preferably comprises a strap twisted intermediate its ends, as at 42, whereby the respective ends thereof are adapted to freely pivot on the

connections

39 and 4|. While the axes of the pivots are thus located in rightangular planes, there is sufiicient freedom of movement to prevent binding as the louvers are moved to and from their various positions of adjustment. In order that the louvers may be swung above horizontal position to admit sunlight, the lever arm 38 is long enough and the bracket plate is so located that when the louvers reach horizontal position (Fig. 3), the arm 33 has not reached its lower dead center position, and further movement of the crank therefore swings the louvers above horizontal position.

In actuating the control, and assuming that the louvers are in the position shown in Fig. 3 and it is desirable to close them, the crank is swung upwardly in a clockwise direction, Fig. 4, causing the lever arm 38 to swing the connecting link 40 in an upward arc and exert a lifting force on the connecting bolt 4| to effect upward movement of the louver connecting link or rod 22 which effects movement of all the louvers toward closed position as shown in Fig. 5. When the louvers are completely closed, the pivotal axis of the arm 38 lies in a dead center position with respect to the axis of the shaft portion 35 of the crankshaft 34 and the axis of the pivotal connection 4| of the upper end of the link so that the louvers are automatically locked in closed position. In opening the louvers rotation of-the crank is reversed, and stopped when the louvers are opened to the desired degree.

In the form of the invention illustrated in Fig. 6, the inner end of the shaft portion 43, corresponding to the shaft portion 34, terminates ina head 44, having a polygonal-shaped socket 45 to receive a similar shaped shank 46 on a removable crank 41. Otherwise the modified form ofthe invention is the same as the first described form.

From the foregoing it is obvious that we have provided a shutter control mechanism that is of simple, durable construction and readily operated from the interior side of a window. Itis also obvious that the control mechanism is so designed that the shutters are readily manipulated at the inner side of the window-screen.

What we claim and desire to secure by Letters Patent is:

1. A control mechanism for shutters having pivotal support on a frame having inner and outer face sides, said shutters being arranged to project from the outer face side, a link' pivotally connecting the shutters and contained within the depth of the frame so as not to project from the inner face side of the frame, a bracket fixed on the inner face side of the frame, a shaft oscillatable in said bracket and having an end extending through the plane of said inner face side in the direction of the shutters, a laterally extending arm on the shaft between said inner face side and the shutters, a link connecting said lateral arm with the link pivotally connecting the shutters, and a crank connected with the opposite end of the shaft on the inner face side of the frame for oscillating the shaft to move the shutters to and from open position, said arm and link connection having upper and lower dead center positions relative to the axis of the shaft and the pivotal connection of said link in two positions of the shutters.

2. A control mechanism for shutters having pivotal support on a frame carrying a window screen attached to the inner face side of the frame, said shutters being arranged to project from the outer face side of the frame and on the outer side of said screen, a link pivotally connecting the shutters on the shutter side of said screen, a bracket fixed to the frame on the inner face side of the screen, a shaft extending through the screen and oscillatable in said bracket, a laterally extending arm on the shaft and oscillatable between the shutters and screen, a link connecting said lateral arm with the link pivotally connecting the shutters, and a crank connected with said shaft on the inner side of the screen for oscillating the shaft to move said shutters to and from open position, said arm and link connection having upper and lower dead center positions relative to the axis of the shaft and the pivotal connection of said link in two positions of the shutters.

3. A control mechanism for shutters having pivotal support on a frame having inner and outer face sides, said shutters being arranged to project from the outer face side, a link pivotally connecting the shutters and contained within the depth of the frame so as not to project from the inner face side of the frame, a bracket fixed on the inner face side of the frame, a shaft oscillatable in said bracket and having an end extending through the plane of saidv inner face side in the direction of the shutters, a laterally extending arm on the shaft between said inner face side and the shutters, a link connecting said lateral arm with the link pivotally connecting the shutters, a head on the end of the shaft which projects inwardly from said innervface side of the frame and having a polygonal shaped socket, and a removable crank having a polygonal portion engaged in said socket.

4. A control mechanism for shutters having pivotal support on a frame carrying a window screen attached to the inner face side of the frame, said shutters being arranged to project from the outer face side. of the frame and on the outer side of said screen, a link pivotally connecting the shutters on the shutter side of said screen, a bracket fixed to the frame on the inner face side of the screen, a shaft extending through the screen and oscillatable in said bracket, 9. laterally extending arm on the shaft and oscillatable between the shutters and screen, a link connecting said lateral arm with the link pivotally connecting the shutters, a head on the shaft at the inner side of said screen and having a polygonal shaped socket, and a removable crank having a polygonal portion engaged in said socket.

RALPH R. DUBOUR. V LEMUEL G. BROWN.