US2151748A

US2151748A - Cowl ventilator

Info

Publication number: US2151748A
Application number: US190077A
Authority: US
Inventors: Roy H Dean
Original assignee: Motors Liquidation Co
Current assignee: Motors Liquidation Co
Priority date: 1938-02-11
Filing date: 1938-02-11
Publication date: 1939-03-28
Anticipated expiration: 1956-03-28

Description

March 28, 1939. R. H. DEAN COWL VENTILATOR `F`iled Feb. ll, 1938 2 SheetS-Sheetl 1 N VEN TOR.

March 28, 1,1939. R.'H. DEAN cowL VNTILATOR Filed Feb. 11, 1938 ATTORNEY .5

' 2 Sheets-Sheet 2 INVENTOR.. lloy H. Dean' Patented Mar. 28, 1939 Y i UNITED STATES PATENT OFFICE cowLV vEN'HLA'roR RoyH. Dean, Detroit, Mich., assignor to General Motors Corporation, Detroit, Mich., a corpora- Y tion of Delaware Application February 11, 1938, Serial No. 190,077

6 Claims.

lines to lock the ventilator panel closed. However, the lever arm arrangements andthe toggle arm arrangements, so far as I know, have been so designed and arranged that they usually afforded a lever which is located behind and below the instrument board. This is always hardvto find in the darkness which is usually present in this location. But even a greaterY objection is that this operating mechanism presents a real problem with the present setup of appliances and accessories, such as heaters, radios, electrical connections, etc.

, It is the object of the present invention to provide a very simple operating unit which absolutely locks a closure in its closed position, which has a handle in a very convenient place where it may be found without any trouble and which removes the operating mechanism from a position where it will interfere with the accessories, electrical connections, etc. on the instrument board. n

yReferring to the drawings:

Fig, 1 is a'fragmentary elevation of the inside of a closed body showing the ventilator operating handle in position.

, Fig. 2 is a :vertical central section through the cowl, the ventilator and the instrument board.

Fig. 3 is a plan View, partly in section, of the operating mechanism.

Fig. 4 is a perspective of the actuator cup segment. f

Fig. 5 is a perspective detail of one of the sections of one of the operating links.

Fig. 6 is a perspective of the reinforcing frame.

Fig. '7 is a perspective of the mounting plate.

a designates the cowl and b the ventilator closure lid which is provided with a deflector c and a screen d. The closure unit swings on an arm e which is tted to the underside of the cowl at f.

The actuating means consists of a bracket g which is secured to the deflector plate c. This pivots an elbow h which Yconnects with the twopart adjustable link or toggle arm z' and il. This link is part of a toggle that includes the cup segment 9'. This is provided with a plurality of recesses k arranged to receive the ball detent l. A crank arm m is fastened on the spindle n which protrudes through the top of the instrument panel o in the relatively large space formed in the V of the windshield. The mounting plate q carries the ball detent Z which is springpressed by a spring r located in the cupy s that is riveted to the mounting plate. This mounting plate is secured to the reinforcing plate t which is shown in detail in Fig. e. The detailsof the fastening are not yshown in the drawings, but `the mounting plate can belbolted to the reinforcing plate through the screw holes u and o shown in Figs. 7 and 6 respectively. The spindle 1'0.

ment by means of the elbow z. The two elbowsv h and e form, in effect, universal connections at both ends of the link for converting the rotary motion in a substantially horizontal plane to rotary motion in a' substantially vertical plane. The link. i, i1 and the portion of the cup segment between the axis of the pivot 2 and the axis of the spindle n form, in effect, toggle arms.

Referring to Fig. 3, it will be seen that when the ventilator is open, the toggle is broken, and, whenl thev ventilator is closed as sh'own in the full lines, the toggle arms are on substantially the dead center or over the dead center and, therefore, constitute an effective lock against prying the Ventilating lid open.

It will be noted that the operating parts are immediately under the top of the instrument panel and out of the way as well as they may be of the electrical connections, accessories,etc. 35 that are 'usually on the back of the instrument panel or closely adjacent thereto. It is also to be observed that the toggle arms have very little vertical throw in travelling from one operating position to the other and, hence, will not 'inter- 40 fere with the adjacent parts in this way.

What I claim is:

1. In a cowl ventilator, the combination with the cowl and an instrument board of an automobile body having a top portion lying in a plane approximating a horizontal plane, the cowl provided with a ventilator opening, of a swinging ventilator lid acting as a closure for said opening and pivotally supported on the underside of the cowl and a control therefor comprising a pivoted actuating member supported on the underside of the top of the instrument panel and arranged to turn in a plane approximating the horizontal and connecting means between said actuating member and the swinging lid for converting the turning movement in an approximately horizontal plane into turning movement in a vertical plane for opening and closing the lid.

2. In a cowl ventilator, the combination with the cowl and an instrument board of an automobile body having a top portion lying in a plane approximating a horizontal plane, the cowl provided with a ventilator opening, of a swinging ventilator lid acting as a closure for said opening and pivotally supported on the underside of the cowl and a control therefor comprising a pivoted actuating member supported on the underside of the top of the instrument panel and arranged to turn in a plane approximating the horizontal and connecting means between saidl actuating member and the swinging lid for converting the turning movement in an approximately horizontal plane into turning movement in a vertical plane for opening and closing the lid, including a toggle arm cooperating with a portion of the actuating member to form an operating toggle.

3. In a cowl ventilator, the combination with the cowl and an instrument board of an automobile body having a top portion lying in a plane approximating a horizontal plane, the cowl provided with a ventilator opening, of a swinging ventilator lid acting as a closure for said opening and pivotally supported on the underside of the cowl and a control therefor comprising a pivoted actuating member supported on the underside of the top of the instrument panel and arranged to turn in a plane approximating the horizontal and connecting means between said actuating member and the swinging lidr for converting the turning movement in an approximately horizontal plane into turning movement in a vertical plane for opening and closing the lid, including a toggle arm cooperating with a portion of the actuating member to form an operating toggle, said toggle arm comprising a pair of toothed arm sections that can be bolted together at various positions to change the eifect and length of the arm.

4. In a cowl ventilator, the combination with the cowll and an instrument board of an automobile body having a top portion lying in a plane approximating a horizontal plane, the cowl provided with a ventilator opening, of a swinging ventilator lid acting as a closure for said opening and pivotally supported on the underside of the cowl and a control therefor comprising a pivoted actuating member supported on the underside of the top of the instrument panel and arranged to turn in a plane approximating the horizontal and connecting means between said actuating member and the swinging lid for converting the turning movement in an approximately horizontal plane into turning movement in a vertical plane for opening and closing the lid, including a toggle arm cooperating with a portion of the actuating member to form an operating toggle, the said toggle arranged to be on a substantial dead center when the lid is closed and the toggle arranged to be broken whenthe lid is opened.

5. In a cowl ventilator, the combination with the cowl and an instrument board of an automobile body having a top portion lying in a plane approximating a horizontal plane, the cowl provided with a ventilator opening, of a swinging ventilator lid acting as a closure for said opening and pivotally supported on the underside of the cowl and a control therefor comprising a pivoted actuating member supported on the underside of the top of the instrument panel and arranged to turn in a plane approximating the horizontal and connecting means between said actuating member and the swinging lid for converting the turning movement in an approximately horizontal plane into turning movement in a vertical plane for opening and closing the lid, including a toggle arm cooperating with a portion of the actuating member to form an operating toggle, the said arm having one or more universal connections with the actuating member and with the swinging lid.

6. In a cowl ventilator, the combination with the cowl and an instrument board of an automobile body having a top portion lying in a plane approximating a horizontal plane, the cowl provided with a ventilator opening, of a swinging ventilator lid acting as a closure for said opening and pivotally supported on the underside of the cowl and a control therefor comprising a pivoted actuating member supported on the underside of the top of the instrument panel and arranged to turn in a plane approximating the horizontal and: connecting means between said actuating member and the swinging lid for converting the turning movement in an approximately horizontal plane into turning movement in a vertical plane for opening and closing the lid, including a toggle arm cooperating with a portion of the actuating member to form an operating toggle, the said arm having one or more universal connections with the actuating member and with the swinging lid, comprising one or more twisted links with pivotal connections angularly removed from each other.

ROY H. DEAN.