US1871914A

US1871914A - Radiator shutter units

Info

Publication number: US1871914A
Application number: US436941A
Authority: US
Inventors: Edgar G Petersen
Original assignee: Pines Winterfront Co
Current assignee: Pines Winterfront Co
Priority date: 1930-03-19
Filing date: 1930-03-19
Publication date: 1932-08-16
Anticipated expiration: 1949-08-16

Description

1932' E. ca. PETERSEN 1,871,914

RADIATOR SHUTTER UNITS Filed March 19, 1930 5 Sheets-Sheet 1 didyar 5 1 622266 W 34% Wiggi- Aug. 16, 1932. E. G. PETERSEN RADIATOR SHUTTER UNITS Filed March 19, 1930 5 Sheets-Sheet 2 m N w km E:::: m.w m, 2

1932- E. G. PETERSEN RADIATOR SHUTTER UNITS Filed March 19, 1930 5 Sheets-Sheet 5 dra 671, 756 WM Aug. 16, 1932. E. G. PETERSEN RADIATOR SHUTTER UNITS 5 Sheets-Sheet 5 Filed March 19, 1950 EIiGAR JG. PETER-SEN, or

Patented Aug. 16, 1932 run, or}, carcass rumors, A .qoarona rlon jorpELAwana aamaroa SHUTTER Bums f ""Application filed' March 19, late-Benn release.

The. present invention relates to radiator shutter units, and is, particularly concerned with radiator shutter units for controlling the flow of cooling air through the radiators of internal combustion engines,

Another object of the invention is the prolhe radiator shutter unitsof the prior art have been provided with a plurality of radi ator shutters pivotally mounted in a substan= tially rectangular frame, and consequently all of the shutters wereof the same length, and unless the radiator to which the shutter was applied, was also of rectangular shape, it was impossibleto utilize the full radiating area of the radiator core. That is the rectangular shutter unit was made as large as the front area of the radiator core wouldpermit,

but the balanceof the radiator core was covered by a plate or shield covering that por-' tion of the core betweenthe edge of theshut- T ter unit and the radiator shell.

full area of the radiator core whenever the front surface oft-he core had any form other than the simple rectangular form, and one of the objects of the present invention'isthe 'pro-- vision of an improved shutter unit which is capable of utilizing allot the radiating area of a core of irregularshape;

vision'o'f a radiator shutter unit' which is adapted to be used uponthe type of radiators which have arounded top or a. top portion which tapersi n width, andwhlch 18 adapted to utilize a greater portlon of the;

cooling area ofradiators ofthistyper Another object isthe provision of an improved shut'ter unit which is provided with; a plurality of shutters :o'fdifl erent length, I all of which are adaptedto besimultaneously actuated by an improved form of actuating mechanism.

Another object is the provision of an improved radiator shutter of the built-in type which is more sturdy than the'devic'es of the prior art, capable of longer service without possibility of rattling, and capable of being economically manufactured and assembled.

Another object of the invention-is the pro- "vision of an improved radiator shutter as shutter unit.

semblyin which'the radiator shell is provided witha false shutter apron for closing-the lower part-of the radiator core to prevent freezing of the water at this point, and the description and from the accompanying The shutter units ofthe prior art were not adapted therefore to the utilizationof the Fig. 2 is a horizontal sectional view taken on theplane of the line-22 of Fig. 1 looking in the'direction of the arrows." Fig.3'is a horizontal sectional view taken onf'the plane of line 3- 3 of Fig. 1 looking in the direction of the arrows. "3 P Fig. 4 is a rear'elevati'on'al' view of the 'Fig. 5 is a side elevational shutter unit. V v

Fig. 6 is a vertical sectional view of the shutter unit taken on the plane of the'line 66 of looking in the direction of the arrows. v Fig. is a rear elevational view of part of a modified form of shutter unit having view of the j a larger number .of shutters of different with shutters offdiiferent lengths for the' purpose of utilizingthe full area ofthe opening in the front of the shell 10. o

The radiator shell is preferably sup-' ported directly upon the chassis of the vehicle and the front wall 14 of the shell 10 is preferably provided withan inwardly pro-- jecting flange 15 and a contacting flange 16, which extends substantially parallelto the face of the shutter unit 11. The contacting flange" 16 of the shell 10 may be made of resilient material-to produce acloser fit between the shutter unit and the contacting edge 16 of'shell 10, and the edge or flange ,16 forms. the border of the fenestration 13 which may take any desired ornamental shape. The design illustrated in the present embodiment is to be regarded as. merelyexemplary of one of the many forms which the fenestration;

in the radiator shell 10 may take, The lower portion of the fenestrationi13 in the shell 10 may be closed by a false shutter apron 17 consisting of a stamped sheet of metal which is formed with a flat border 18 for engaging the rear side of the flange 16,' and with a plurality ofseparate shutter formations 19 of the same width and shape as the shutters 20 which are carried by the shutter unit 11.

In the embodiment illustrated in Fig. l,=the false shutter plate 17 1 comprises a separate sheet or plate of metal which may be secured to the inside of the radiator-shelllO by a plurality of right angle brackets 21 and screw bolts 22 or otherconvenient fastening means. In some embodiments of the, invention, the

false shutter plate 17 mayconsist of an integrally stamped formation on the shell v 10, The false'shutter plate 17may be-provided at a central point with a cap plate 23 andriveted or spot welded to the shutter plate 17, and forming an opening 24 for access to the crank shaft of the engine, and the opening 24 may be .closed by any conventional type of cap 25. it The radiator core 12 comprises one of the conventional forms of honey-combstructnres for permitting the. circulation of water through a multiplicityof conduits having fins exposed to the air, and the honey-comb part of the core 12 is supported by a, sheet metal core band 26 forming the outer wallof At the rear side of the the radiator'core 12. core 12 the core band 26is providedwitha laterally projecting extension 27 which may be secured to the radiator shell 10 brackets and bolts 28 or other convenient fastening means. The core band 26 is also preferably provided with a pair of forwardly projecting extensions 29 at each side to provlde a support for the shutter unit 11. It will thus be observed that the radiator shutter unit 11 may bedirectly supported by the extensions onthe core band 26 which in turn are fixed to the shell 10 carried by the chassis in such manner that there is no possibility that the honey-comb portion of the core 12" may be damaged The forward extensions 29 on the core band 26 also form a casing for enclosing the space between the shutter unit 11 and the radiator core 12in such manner as to provide a substantially continuous conduit through the shell 10. The. radiator shutter unit 11 preferably comprises asupporting frame consisting of two

end frame members

30, 31 and a pair of

side frame members

32, 33. The lower endframe member 31 may consist of an elongated sheet metal member which is preferably provided with a pair of upwardly projecting attaching flanges 34, 35. The lower frame member 31 preferably has a'flat bodyportion 36 with a downwardly projectingflange 37 at the rear edge for increasing the strength and rigidity of the frame, and a forwardly projecting rib or housing 38 for enclosing and protecting the bearing strip 39. The housing 38 comprises a downwardly extending flange 40, and a backwardly extending flange 41, and the flange 41 also supports a downwardly extending flange 42.

When the shutter unit is assembled with the core and shell as shown in Fig. 1, the flange 41 rests upon the upper edge of the false' shutter plate 17, and the flange 42 is engaged behind the false shutter plate 17. The

side frame members

32 and 33 of shutter unit 11 preferably consist of elongated sheet metal members which are likewise formed with attaching

flanges

43, 44 at each end, and with laterally projecting reinforcing flanges 45 at the rear edge. At the front edge of each; of the

lateral frame members

32, 33 these members are preferably provided with an inwardly projecting flange 46 which is bent outward and backward upon itself as at 47, forming a curved surface 48 of substantially the same shape as one of the curled portions 49 of a shutter 20. The outwardly extending portion 50 of each of the

side frame members

32, 33 constitutes a resilient shell engagingflfiange which may be made of sufficient width to fill the space between the shutter'unit 11 and the contacting edge 16 of the shell 10. Where the shape of the fenestration 13 is such that it tapers in width toward the top, the resilient flange 50 should also taper in width. By virtue of the width of the flange 46, the fold 47 and the width of the flange. 50, the latter flange is maintained in re ilient engagement with the inwardly projecting contacting edge 16 of shell 10. thereby providing a substantially air-tight and rattle-proof connection between the shutter unit 11 and front part of shell 10. The laterally projecting extension 27 on the core band 26 provides the principle supportfor the radiator core 12 andshutter unit 11 upon the shell 10, and also encloses the rear side of the space 51 in the shell 10, forming a dead air space about the radiatorcore 12, which tends to prevent the radiation of the heat from the water in the core during cold weather.

In order to secure the shutter unit 11 to the forward extensions 29 on the core band 26, the extensions 29 are provided with apertures 52 for receiving the screw bolts 53 and the

side frame members

32, 33 are provided with apertures 54 within which are riveted the threaded members 55. for receiving screw bolts 53. The threaded members 55 are each provided with a reduced portion 56 adapted to be received in the aperture 54, and theside frame member 33 is confined, between the shoulder 57 and the end of the reduced portion 56 which is riveted over. The size of the frame for the shutter unit 11 is preferably such that the shutter unit 11 may be slidably received between flanges 29.

The upper attaching flanges 44 on

side frame members

32, 33 preferably extend obliquely with respect to the

.sideframe members

32, 33 to cut off the upper corners of the frame and provide a frame which tapers in width toward the top to conform to the shape of the radiator shells of this'type. In the embodiment of Fig. 4, the amount of taper at the top of the frame is small, because only:

one shutter of lesser length is provided at each side of the shutter unit, but in the embodiment of Fig. 7, a plurality of shutters 20 of difierent lengths have been provided and the oblique flanges 44 on-the side frame members have been made correspondingly longer. The upper frame member 30 is also provided with oblique attaching flanges 58, of such angularity that they fit against the flanges 44 on the side frame members, and .theseflanges may be secured together by a plurality of bolts 59 or other fastening means.

The attaching flanges 43 and. 35 at the bottom of the shutter may be secured to the adjacent parts of the frame members by spot welding or other fastening means of a more permanent nature, but bolts are preferably employed at one end of the frame so as to facilitate the assembly of, the shutters with the frame with the use of ordinary tools. The upper frame member 30 is also preferably provided with a downwardly extending rein-V forcing flange 60 at its rear edge, and with a downwardly extending facing flange 61 at its forward edge. The facing flange 61 is preferably made of suflicient width to cover the ends and both upper corners of each of the shutters 20,.and to overlap the resilient flange 50 carried by

side frame members

32, 33. The

facing flange 61 is preferably secured to the laterally projecting flange 50 on the side frame membersby screw bolts 62 or other fastening means, thereby greatly increasing the rigidity of the frame work by securing these frame members together'in two different planes. The shutters 20 preferably consist of sheet metal members, each of which is formed with a curled portion 49 for receiving as a thrust bearin for en a ement with a resilient. bearing strip. The rib 64 also definitely limits the length of the trunnions 63 which may be driven in until the rib engages the end of the shutter.

The respective shutters 20 are also laterall curved as at 65 to increase their lon itudinal rigidity and their lateral resiliency, and

the other edge of the shutters is preferably formed with a curved portion 66 which is complementary to the tubular portion 49. It will be observed that the curved portion 66 of the left-hand shutter in Fig. 3 is adapt-edto engage the curved part .48 of flange 46 in the same manner as the engagement between the respective shutters.v

The crack between the right hand shutter and the shutter frame member 32 is preferably closed by the resilient flange 67 of a sheet metal member which is secured to the frame member 32 by means of another flange 68 at right angles, to the first mentioned flange. The flange 67 preferably has sufficient clearance with respect to the curved portion 49 of the right hand shutter to permit the shutter to rotate freely. The upper frame member 30 is preferably formed with a plurality of stamped depressions 69 for receiving rivets 70 which secure a resilient bearing strip 71 to the upper frame member. The bearing strip 71 consists of an elongated strip of bearing metal such as brass, bronze, or other alloys which is drilled with a plurality of holes 72 forming bearings for the trunnions 63. The trunnions 63 are preferably formed of'steel, so as to produce a minimum amount of wear from the engagement with the bearing strips 71. The bearing strips 71 being resilient, they may be fixedly secured to the upper frame member 30 by the rivets 70, and the bear ng strip 71 is spaced from the upper frame member 30 by the stamped protuberances '69 and the spacing members 73. v The bearingstrip 71 -is thus adapted to flex along its length, and to resiliently engage the thrust bearings 64 of the respective shutters. Since the present shutter unit is provided with a plurality of and the central shutters-20. In the em-- bodiment of Fig. 4, where only one short shutter. is employed on each side, the end bearing 77 is sufficiently supported by the rivets which secure the body 74 to frame member 30, but in the embodiment illustrated in Fig. 7, the bearing strip 71 is provided with a plurality of the

bent portions

75, 76 forming a plurality of offset bearing portions 77, each adapted to receive a trunnion of a shutter of lesser length, and the lower end of the last bearing portion 77 1s preferably extended and provided with an attaching flange 78, which may be secured to the

side frame members

32 and 33 by a screw bolt 79.

It will be observed that the first short shutter at the right in Figs. 4 and 7 has an elongated trunnion 63 which is pivotally mounted in the main body of the bearing strip 71. Each of the bearing portions 77 resiliently engages the thrust bearing 6% of its respective shutter, thereby tending to prevent rat-. tling of the shutters in their bearings, and the resilience of the bearing strip is increased by the provision of the offset portions 80 of the strlp. Referring to Fig. 5, the housing 38 in the lower frame member 31 is adapted to receive a bearing strip 39 of metal similar to the bearing strip 71, and the bearing strip 39 may be secured in place on the lower side i of frame member 39 by a plurality of rivets 81. It should also be understood that the body 36 of the lower frame member and the body of the upper frame member 30 are provided with apertures registering with the apertures in the bearing strips 39 and 71.

Each of the shutters 20 is preferably provided at one end with a backwardly extending shutter arm 82, and the shutter arms 82 comprise integral extensions or flanges bent over at the top from the curved body 65 of the shutters. The shuttersmay be adapted for simultaneous or group actuation the only difference in structure between such arrangements being the provision of a plurality of actuating bars 83 or the division of the present bar into two or more parts.

The shutter actuating bar 83 comprises an elongated strip of sheet metal such as steel which is formed-with a plurality of spaced apertures 84 which are aligned with the apertures 85 in shutter arms 82 when the shutters are closed.- Each of the shutter arms82 is provided with-a rivet having a reduced end of sufiicient size to be received in the

aperture

85,50 that the rivet may be fixedly mounted on arm 82 by riveting over the end and confining the arm 82between a shoulder on the rivet and the end of .the rivet as shown in Fig. 6. The shutter bar 83 is then rotatably confined between the head 86 of the rivet and the body of the'shutter arm 82, and when a plurality of shutters have beensecured to the shutter actuating bar 83 in the same manner,

they may all be actuated from a common controlling device.

Since the shutters 20'are not all of the same length, the shutter actuating bar 83 comprises a central body portion 87 which is pivotally connected to the longest shutters, and which extends'sufliciently beyond the long shutters so as to prevent any interference between the shutters of the bar. At each end the body portion 87 is bent downward at 88, forming an offset portion 89 of su'flicient length to span the difference in length between the longest shutters and the next adjacent shorter shutter. At the point 90 the shutter bar is again bent horizontally so that thehorizontal portion 91 may be pivotally connected to the ends of the next shorter shutters, and so on.

V Inthe device shown in Fig. 4, only one short shutter is used at each side, but in the modification shown in Fig. 7 the shutters 20 are successively shorter at each side, and consequently there'are a plurality of offset portions. 89 and horizontal portions 91 on the shutter actuating bar 83. Referring toFigs.

2 and 6, the shutters 20 may all be moved to open position by moving the shutter actuating. bar 83 to the left in Fig. 4, or to the right and upward in Fig. 2. The actuating mechanism for the shutter bar 87 preferably includes a fixed stud 92 which may be riveted to the shutter actuating b'ar83 in a manner similar to the way in which rivets 86 are secured to shutter arms 82. The stud 92 projects upward through an arcuate slot 93 in the upper frame member '30, and is pivotally secured to. a link 94 which has its opposite end pivotally mounted to a bell crank 95.. The bell-crank 95 is itself pivotally secured upon'a fixed stud 96 carried by upper it should .be noted that the present shutter unit is not confined to the use of the unit with the stepped shutters located only at the top of the unit, but in appropriate cases the shutter unit may be provided with shutters gradually decreasing in length at the bottom of the unit, or at both ends of the shutter unit. The structure described in Fig. 7 with respect to one end of the unit may thus be utilized at either end or both ends, and in other appropriate cases the shutters may extend horizontally instead of vertically, so that the present shutter unit is capable of use with practically any shape of radiator shell to utilize the maximum amount of air circulating surface of the radiator core. It will thus be ob served that I have invented an improved radiator shutter assembly and radiator shutter unit in which the shutters may be made of various different lengths, and the shutter frame of shapes other than the usual rectangular shape, in order to utilize the maximum air circulation area in the radiator cores of automobile radiators of various different shapes.

While I have illustrated a preferred embodiment of my invention, many modifications may be made without departing from the spirit of the invention, and I do not wish to be limited to the precise details of construction set forth, but desire to avail myself of all changes within the scope of the appended claims. I

Having thus described my invention, what I claim is new and desire to secure by Letters Patent of the United States, is

1. A radiator shutter unit comprising a frame, said frame comprising a pair of side frame members and a pair of end frame members, oblique extensions carried by the ends of one of said frame members, oblique extensions carried by the adjacent ends of said side frame members, means for securing the extensions together forming a fenestration, a plurality of shutters of different lengths pivotally mounted in said frame to utilize the maximum amount of opening in said fenestration, and a common bearing strip for pivotally supporting the ends of said shutters of different lengths, said bearing strip having offset portions to bring its hearings into juxtaposition with the ends of shorter shutters.

2. A radiator shutter unit comprising a frame, said frame comprising a pair of side frame members and a pair of end frame members, oblique extensions carried by the ends of one of said frame members, oblique extensions carried by the adjacent ends of said side frame members, means for securing the extensions together forming a fenestration, a plurality of shutters of different lengths pivotally mounted in said frame to utilize the maximum amount of opening in said fenes-' tration, a common bearing strip for pivotally supporting the ends of said shutters of different lengths, said bearing strip having offset portions to bring its bearings into juxtaposition with the ends of shorter shutters, and a shutter actuating bar having a plurality of ofiset portions, said bar being pivotally mounted on a plurality of shutters of different lengths. I I

3. A radiator shutter unit comprising a frame, said frame comprising a pair of side frame members and a pair of end frame members, oblique extensions carried by the ends of one of said frame members, oblique extensions carried by the adjacent ends of saidisid-e frame members, means for securing the extensions together forming a fenestration, a plurality of shutters of different lengths pivotally mountedinsaid frame to utilize the maximum amount of opening in said fenestration, a common bearing strip for pivotally supporting the ends of said shutters of different lengths, said bearing strip having offset por-V tions to bring its bearings into juxtaposition with the ends of shorter shutters, a shutter actuating bar having a plurality of offset portions, said bar being pivotally mounted on a plurality of shutters of difl'erentlengths, and a spring for urging said shutters to closed positio I 4. A radiator shutter assembly compris ing a radiator shell, a radiator core having a core band with forwardly'and rearwardly projecting extensions, one of said extensions being fixedly mounted on said 1 radiator shell, and the other of said extensions being adapted to receive and support the frame.

of a radiator shutter unit, and a radiator shutter unit for controlling the flow of air through said shell and radiator core.

5. A radiator shutter assembly comprising a radiator shell, a radiator core having a core band with forwardly and rearwardly projecting extensions, one of said extensions being fixedly mounted on said radiator shell, and the other of said extensions being adapted to receive and support the frame of a radiator shutter unit, and a radiator shutter unit for controlling the fiow of air through said shell and radiator core, said radiator shutter unit having a plurality of radiator shutters of difierent lengths, and

said shell being adapted to coverthe ends of said shutters of different lengths. 7

6. A radiator shutter assembly comprising a radiator shell, a radiator core having a core band with forwardly and rearwardly projecting extensions, one of said extensions being fixedly mounted on said radiator shell, and the other of said extensions being adapted to receive and support the frame of a radiator shutter unit, a radiator shutter unit for controlling the flow of air through said shell and radiator core, said radiator shutter unit having a plurality of radiator shutters of different lengths, and said shell being adapted to cover the ends of said shutters of different lengths, said shutters having a plu- 'ality of shutter actuating arms locatedin different planes, and a shutter actuat-ingbar pivotally inounted upon said shutter actuating arms. I v

7 A radiator shutter assembly comprising aradiator shell, a radiator core having a core band with forwardly and rearwardly projecting extensions, one of said extensions being fixedly mounted on said radiator shell, and the other of said extensions being adapted to receive and support the frame of a radiator shutter unit, a radiator shutter unit for controlling the flow of air through said shell and radiator core, said radiator shutter unit having a plurality of radiator shutters of different lengths, and: said shell being I adapted to cover the ends of said shutters of different lengths, said shutters having a phi-f ralityof shutter actuating arms located in difierent planes, a shutter actuating bar piv-- otally mounted upon said shutter actuating arms, a bell crank carried by said shutter unit, a link'pivotally connecting said bell crank and said shutter actuating bar, and a spring tension ed between said link and said shutter unit to urge said shutters to closed positionl In Witness whereof, hereunto subscribe my name thisditlr day of March, A. D.

. EDGARG. PETERSEN.