US1916579A - Electrically operated window - Google Patents

Description

July 4, 1933. MQSHER 1,916,579

ELECTRICALLY OPERATED WINDOW Filed March 5, 1932 2 Sheets-Sheet l 4, 1933. E. MQSHER 1,916,579

ELECTRICALLY OPERATED WINDOW Filed March 5, 1932 2 Sheets-Sheet 2 5 527 Mafia? Patented July 4, 1933 UNITED STATES PATENT OFFICE EVERT KOSHER, OF EADS, COLORADO, ASSIGNOR OF ONE-FOURTH TO JAMES G. HOPKINS, OF EJLDS, COLORADO ELECTRICALLY OPERATED WIlTDOW Application filed March 5, 1932. Serial No. 597,023.

This invention relates to a device for opening and closing windows by remote control. It is particularly applicable to the windows of an automobile, but is of course not lim- E ited to this use as itwill be found valuable Wherever it is desired to control windows from a distant point. i

The principal object of the invention is to provide a positive and efficient electrically operated mechanism whichwill open or close a window in accordance to the operation of a control switch.

Another object of the invention is to so construct the device that when the window reaches either the fully opened or the fully closed position, it will automatically open the operating circuit.

A further object of the invention is to so construct the device that should the automatic cut out fail to operate, and should the operator fail to shut off the current, the mechanism will mechanically release itself before damage is done to the window.

A still further object is to provide means whereby the window may be manually operated, if desired.

Other objects and advantages reside in the detail construction of the invention, which is designed for simplicity, economy, and efficiency. These Will become more apparent from the following description.

In the following'detailed description of the invention reference is had to the accompanying drawings which form a part hereof. Like numerals refer to like parts in all views of the drawings and throughout the description.

In the drawings:

Fig. 1 is an inside face view of a typical automobile door with the inner wall partially broken away to show the operating mechanism'.

Fig. 2 is a vertical section taken on the line 22, Fig. 1. I

Fig. 3 is a wiring diagram illustrating a method for electrically connecting the various operating elements.

Fig. 4 is a detail illustration of the limit switch employed in the invent-ion.

Fig. 5 is a detail View illustrating the meth- 0d of connecting the operating chain to the window pane.

Fig. 6 is an enlarged vertical section through the operating gear mechanism, taken on the line 6-6, Fig. 1. 5;

Fig. 7 is a detail view illustrating the corelation between the manual crank and the gear shaft.

In the drawings, a typical automobile door frame is illustrated at 10 with its inner wall covering at 11, its hinges at 12, and its window pane at 13.

In applying the invention, a gear frame 14 is installed within the door frame 10, concealed by the inner wall covering 11. The 6 gear frame 14 carries a hollow gear shaft 15 in suitable bearings. The gear shaft 15 carries a worm wheel 16, and a chain sprocket 17 A worm 18 is in mesh with the worm Wheel 16, and is driven from a suitable electric motor 19. The electric motor 19 must be of a type to occupy a relatively narrow space. It has been found that a motor of the type generally employed for operating motor driven automobile horns is very satisfactorv for this purpose. 0

A sprocket chain 20 is drilled upwardly from the chain sprocket 17 about a chain roller 21. It will be noted that one of the reaches of the chain 20 is positioned exactly along vertical center line of the window pane. The bottom of the pane is provided with a horizontal channel support 22. At the point Where the center chain reach crosses the channel support 22, two stud 23 are placed which 35 tightly clamp themselves into the hollows of one of the chain links, as shown in Fig. 5.

It will be noted that from this construction, the window pane is supported at its center point so that it will balance perfectly and will not clamp itself in the guide grooves of the frame 10.

This construction also has another advantage. Let us suppose that the pane in closing would strike an object, that would prevent it reaching the entirely closed position. In such a case, the studs 23 would be sprung apart suificiently to allow the chain to slide therebetween without damage to the window pane.

Adjacent the fully closed position of the bottom edge of the pane 13, an upper limit switch 41 is placed, and adjacent the lowermost position of the bottom edge of the pane a lower limit switch 24 is placed. These switches may be constructed in any desired manner. A preferred method of constructing them is illustrated in Fig. 4, in which, a switch blade 25 is pivoted at 26 and is maintained normally in contact with suitable contacts 27 through the medium of a tension spring 28. The other extremit of the blade 25 is provided with any suita le knob or button 29 which will engage the bottom flange member 22 of the window pane 13 at the limits of its travel so as to swing the blade to the broken line position of Fig. 4

to open the circuit to the motor 19.

The switch for controllin the operation of the motor may be locate at any desired point. As illustrated, control switch 31 is mounted directly upon the door at 31.

The device is preferably wired as indicated in the diagram of Fig. 3, in which the car battery is indicated at 30. The current from the battery may be conducted to the mechanism in any desired manner such as through a flexible cord, or the like. A preferred method of conducting the current to the door is to connect the battery leads to the door hinges 12, as shown in Fig. 3. This eliminates the use of any exposed wiring.

The controlswitch 31 comprises a twopole double-throw reversing switch as indicated in the diagram No. 3. A feed conductor 32 is run from one of the power leads to one of the center contacts to the reversing switch 31. The other feed conductor, 33, is run from one of the feed contacts to one of the field terminals of the motor 19, the other field terminal being connected as shown at 34 to theother middle contact of the reversing switch 31. The armature leads are connected as usual to the reversing switch 31 except that the upper limit switch 23 is connected in series with one of the armature leads, and the lower switch 24 is connected in circuit with the other armature lead.

Let us assume that the reversing switch in the diagram is closed to the left contacts. This causes the current to flow from the feed conductor 32 through the reversing switch 31, and through the lower limit switch 24; thence through the armature of the motor 19, the reversing switch 31, and the motor field to the other feed conductor 33.

This causes the motor 19 to rotate so that the window pane will move downwardly. When it reaches the lower limit of its travel, it will open the lower limit switch 22 so as to open the circuit to stop the motor'19.

When the reversing switch 31 is thrown to the right contacts in Fig. 3, the current will flow from the feed conductor 32 through the reversing switch 31 and the upper limit switch 41 to the motor armature. From thence it will flow back through the reversing switch 31, the conductor 34, and the motor field to the other feed conductor 33. This reverses the direction of rotation of the motor, and causes the window pane 13 to ascend to the closed position. When fully closed, the channel member 22 will contact with and open the upper limit switch 41 to again break the circuit and stop the motor.

It is of course desirable to have means for manually operating the window pane in case the electrical mechanism should be out of service. This may be accomplished by means of a hand crank 35 as illustrated in Figs. 6 and.7. The shaft of the crank 35 is slotted as shown at 36 to fit over a lateral key 37 which is slidably mounted in slots 40 in the gear shaft 15, so as to project beyond the surface of the shaft. A cap 39 forces a compression spring 38 against the key 37 so as to hold it normally in the position of Fig. 6. In the latter position the key locks the worm gear 16 and the sprocket 17 to the shaft 15. When the crank 35 is inserted in the shaft 15, it will force the key 37 inwardly so that it will disengage the worm gear 16, and allow the crank to freely rotate the sprocket 17 so that the window pane may be manually raised or lowered.

While a specific form of the improvement has been described and illustrated herein, it is desired to be understood that the same may be varied, within the scope of the appended claim, without departing from the spirit of the invention.

Having thus described the invention, what is claimed and desired secured by Letters Patent is:

In a device for operating a window pane from a flexible chain, means for connecting said pane to said chain comprising: a frame member secured to said pane; and a pair of studs projecting from said frame member into engagement with opposite sides of said chain.

In testimony whereof, I aflix my signature.

EVERT MOSHER.

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