US3049202A - Door construction - Google Patents
Door construction Download PDFInfo
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- US3049202A US3049202A US28357A US2835760A US3049202A US 3049202 A US3049202 A US 3049202A US 28357 A US28357 A US 28357A US 2835760 A US2835760 A US 2835760A US 3049202 A US3049202 A US 3049202A
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- door
- frame member
- camber
- construction
- door construction
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60J—WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES; REMOVABLE EXTERNAL PROTECTIVE COVERINGS SPECIALLY ADAPTED FOR VEHICLES
- B60J5/00—Doors
- B60J5/04—Doors arranged at the vehicle sides
- B60J5/0486—Special type
- B60J5/049—Special type caravan door
Definitions
- Doors of the character described are generally of the type having front and rear sheet metal panels with the three unhinged edges having a recessed portion for fitting into a door frame and a lip portion overlying the outer side of the door frame. Doors of this character can be seen in United States Letters Patent 2,781,875 and 2,818,946.
- FIGURE 1 is a front elevation of a door construction embodying the present invention
- FIGURE 2 is a side elevation of the door construction of FIGURE 1 as viewed from the left side;
- FIGURE 3 is an enlarged fragmentary view of the upper left corner of the door construction illustrated in FIG- URE l with a portion of the front panel removed;
- FIGURE 4 is an enlarged fragmentary view of the lower left corner of the door construction illustrated in FIG- URE 1 and including a fragmentary section taken on the line 44 of FIGURE 5;
- FIGURE 5 is an enlarged end elevation of the corner illustrated in FIGURE 4 including a fragmentary section taken on the line 55 of FIGURE 4;
- FIGURE 6 is a fragmentary section taken on the line 66 of FIGURE 1;
- FIGURE 7 is an enlarged fragmentary bottom plan view looking in the direction of the arrows 77 of FIGURE 1;
- FIGURE 8 is a view similar to FIGURE 4 illustrating a modified form of the present invention with portions being broken away in two different planes.
- the door construction has a front sheet metal panel 12 and a rear sheet metal panel 14 which are suitably joined at their corresponding four edges, for example in the manner taught in either of the aforesaid Patents 2,781,875 or 2,818,946, so as to provide a continuous marginal recess 16 extending across the top and bottom edges 18 and 20 and along the unhinged side edge 22.
- This construction provides a lip portion 24 extending around the same three edges 18, 20 and 22.
- the recess 16 is adapted to fit into a door frame (not shown) and the lip portion 24 is adapted to fit over the door frame (not shown) to provide a Weather seal.
- one of the problems confronting users of door constructions is that of keeping the proper camber in the door construction with respect to a particular door frame. Should the door construction lose its camber, cracks may occur between the top and bottom edges 18 and 20 of the door construction 10, thereby permitting snow or rain to enter the trailer or to produce cold air drafts in the trailer.
- the present invention provides means for setting the camber and the embodiment of FIGURES 1 to 7, inclusive, will be described first.
- a wooden frame member 28 extends between the front and rear sheet metal panels 12 and 14 from the top to the bottom edges 18 and 21) and adjacent the side edge 22.
- the frame member 28 is held in place by a suitable bonding agent, such as Chrysler Cycle-Weld, which bonds the frame member 28 to the inner surfaces of the front and rear sheet metal panels 12 and 14.
- a tension rod 30 Formed longitudinally through the frame member 28 is a passageway or bore through which extends a tension rod 30.
- the frame member 28 has a corner removed, as at 32, to form a notch on the lower edge adjacent the rear panel 14, and a similar notch is formed at the upper end adjacent the rear panel 14.
- Small metal plates 34 and 36 are located in the notches with the upper end 38 g of the tension rod 30 being connected to the plate 34 so that it cannot rotate with respect thereto. In the disclosed embodiment this is accomplished by welding.
- the lower end of rod 30 is threaded, as at 40, and this end extends through the plate 36 and washer 42 and has a nut 44 1 threadedly connected thereto.
- the frame member 28 also has a plurality of grooves or saw cuts 46 across its rear face so that the frame member 28 can be cambered more readily to a position wherein the increasing the camber in the frame member 28 and there- 'by in the door construction 10.
- FIG- URE 8 A modified form of the invention is shown in FIG- URE 8 and similar reference numbers are used to identify similar parts of the embodiment of FIGURES 1 to 7, inclusive.
- the frame member 28 has been omitted, and in place thereof horizontal frame members are bonded in place between the front and rear panels at the top and bottom edges, with only the lower horizontal frame member 50 being shown.
- the threaded end of the rod 30 can be seen with the frame member 50 notched in the same manner as was done with respect to the previously described frame member 28.
- a door construction having front and rear sheet metal panels in spaced relation, three of the corresponding edges, including the top, bottom and one side edge, being shaped and fastened together to form a continuous marginal recess for fitting into a door frame, said one side edge being cambered to provide a concave face toward its rear panel, a relatively rigid resilient frame member mounted between said panels and extending vertically bet-ween said top and bottom edges and adjacent said side edge and operable to urge said side edge toward a straight position, and an adjustable tension element extending longitudinally through and operably connected to opposite ends of said frame member, said tension ele- 1 ing said frame member on tensioning said tension element,
- the rod 30 is located more closely to the rear face of the frame member 28 than to its frontface so that when the nut 44 is screwed further into the tension rod 40, the-tensioning of the rod 40 will cam her the frame. member 28 in the desired direction and thereby increase the camber shown in FIGURE 2 of the door construction 10. While the disclosed embodiment shows a rod as the tensioning elementextending between opposite ends of the frame member 28, a suitable cable or other means can also be used.
- a hole 48 is formed in the marginal recess at the bottom edge 20 through which a box wrench can be inserted for turning the nut 44.
- a door construction having front and rear sheet metal panels in spaced relation, three of the corresponding edges, including the top, bottom and one side edge, being shaped and fastened together to form a continuous marginal recess for fitting into a door frame, said one side edge being cam-bered to provide a concave face toward said rear panel, a wooden frame member mounted between said panels and extending vertically between said top and bottom edges and adjacent said side edge and having a plurality of relatively deep horizontal grooves facing said rear panel so that when opposite longitudinal compressive forces of sufficient magnitude are applied to the ends of said frame member the latter will be cambered to effect an increase in the camber of said side edge, a tension rod extending longitudinally through said frame member and operably connected against rotation to one end of said frame member and having a threaded end projecting from the other end of said frame member, a
- a door construction having front and rear sheet metal'panels in spaced relation, three of the corresponding edges, including the top, bottom and one side edge, being shaped and fastened together to form a continuous marginal recess for fitting into a door frame, said one side edge being cambered to provide a concave face toward its rear panel, a pair of frame members secured between said panels and extending horizontally substantially the lengths of the top end bottom edges, a tension rod extending through each of said frame members adjacent said one side edge and having its upper end operably connected against rotation to the upper frame member, the lower end of said tension rod being threaded and project ing through the lower frame member, and a threaded member threadedly connected to the threaded end of said tension rod, said marginal recess in the lower edge providing an opening through which a tool can be inserted for turning said threaded member.
Description
Aug. 1962 v. R. sAu oR ETAL 3,049,202
DOOR CONSTRUCTION Filed May 11. 1960 INVENTORS. VERNON R. SAILOR AND ROMER G. WEYANT FINN G. OLSEN ATTORNEY United States Patent ()fiice 3,049,202 Patented Aug. 14, 1962 3,049,202 DOOR CONSTRUCTION Vernon R. Sailor, 1258 Rivershores Lane, and Romer G. Weyant, 81 Edgewater Drive, both of Elkhart, Ind. Filed May 11, 1960, Ser. No. 28,357 4 Claims. (Cl. 189-46) The present invention relates to improvements in the construction of doors, and particularly those doors which are suitable for use in house trailers, cabin cruisers or the like.
Doors of the character described are generally of the type having front and rear sheet metal panels with the three unhinged edges having a recessed portion for fitting into a door frame and a lip portion overlying the outer side of the door frame. Doors of this character can be seen in United States Letters Patent 2,781,875 and 2,818,946.
One of the principal problems faced in the manufacture and use of such doors is that of providing and maintaining proper weather sealing around the periphery of the door. In efforts to accomplish this end, it is now common practice to contruct the door with a camber on at least its free side edge, which camber is concave on its rear or inner side. When the door is closed the top and bottom edges will then be urged tightly against the door frame by the spring properties of the door. The side edges are normally held in close contact with the door frame by the hinges and latch.
This construction and arrangement is effective so long as the door retains the required camber and the door frame retains its original shape. However, it is found that various conditions aifect both the door and the door frame so that the camber in the door is no longer effective to provide the desired weather seal, particularly along the top and bottom edges of the door. Sometimes this occurs from warping or distortion of the door frame as may occur with house trailers, or it may occur from the door losing its camber. This latter condition may occur because the door permanently loses its preset shape, but it has now been discovered that one of the principal causes results from the temperature difference that exists on opposite sides of the door during cold winter weather. It is found that thermal expansion or contraction can cause the straightening of the door so that the lip portions at the top and bottom of the door will be pulled away from the door frame, thereby producing undesirable cracks. The greater the temperature differential between the opposite sides of the door, the greater will be the tendency to eliminate the camber in the door and to increase the sizes of cracks at the top and bottom of the door. Thus, when the sheet metal panel on the outside of the door is as much as fifty or sixty degrees colder than the inside sheet metal panel, the outside sheet metal will contract with respect to the inside panel thereby tending to eliminate the camber.
It is the principal object of the present invention to provide an improved door construction of the type embodying a camber for maintaining a tight weather seal particularly on top and bottom edges, said door construction being constructed and arranged to include means for selectively varying the amount of such camber so as to realize the most effective weather seal around the periphery of the door.
It is still another object of the present invention to provide an improved door construction of the foregoing character which has an adjustable tension means contained therein for setting the amount of camber in said door construction.
It is still another object of the present invention to provide an improved door construction of the foregoing character wherein access to said adjustable tension means for adjusting the same can be gained through the bottom edge of the door, and wherein the adjustable tension means is characterized by the simplicity of its operation.
It is still another object of the present invention to provide a door construction of the foregoing char-acter which contains a frame member tending to maintain the door construction straight and an adjustable tension means associated therewith for causing a camber to be formed in said frame member and thereby in said door construction, whereby increasing or decreasing the tension in said tension means will increase or decrease the camber in said door construction.
It is still another object of the present invention to provide a door construction of the foregoing character wherein said frame member is constructed and arranged so that it may be cambered readily in one predetermined direction on application of pressure at opposite ends of said member so as to camber the door construction to the position providing optimum weather sealing characteristics.
Other objects of this invention will appear in the following description and appended claims, reference being had to the accompanying drawings forming a part of this specification wherein like reference characters design-ate corresponding parts in the several views.
In the drawings:
FIGURE 1 is a front elevation of a door construction embodying the present invention;
FIGURE 2 is a side elevation of the door construction of FIGURE 1 as viewed from the left side;
FIGURE 3 is an enlarged fragmentary view of the upper left corner of the door construction illustrated in FIG- URE l with a portion of the front panel removed;
FIGURE 4 is an enlarged fragmentary view of the lower left corner of the door construction illustrated in FIG- URE 1 and including a fragmentary section taken on the line 44 of FIGURE 5;
FIGURE 5 is an enlarged end elevation of the corner illustrated in FIGURE 4 including a fragmentary section taken on the line 55 of FIGURE 4;
FIGURE 6 is a fragmentary section taken on the line 66 of FIGURE 1;
FIGURE 7 is an enlarged fragmentary bottom plan view looking in the direction of the arrows 77 of FIGURE 1; and
FIGURE 8 is a view similar to FIGURE 4 illustrating a modified form of the present invention with portions being broken away in two different planes.
Before explaining the present invention in detail, it is to be understood that the invention is not limited in its application to the details of construction and arrangement of parts illustrated in the accompanying drawings, since the invention is capable of other embodiments and of being practiced or carried out in various ways. Also, it is to be understood that the phraseology or terminology employed herein is for the purpose of description and not of limitation.
Referring now to the drawing, the illustrated embodiments of the invention will be described in greater detail. The door construction has a front sheet metal panel 12 and a rear sheet metal panel 14 which are suitably joined at their corresponding four edges, for example in the manner taught in either of the aforesaid Patents 2,781,875 or 2,818,946, so as to provide a continuous marginal recess 16 extending across the top and bottom edges 18 and 20 and along the unhinged side edge 22. This construction provides a lip portion 24 extending around the same three edges 18, 20 and 22. The recess 16 is adapted to fit into a door frame (not shown) and the lip portion 24 is adapted to fit over the door frame (not shown) to provide a Weather seal. As taught in the aforesaid Patents 2,781,875 and 2,818,946, the most effective weather seal is provided when the door construction 10 is cambered along the side edge 22, as shown in FIGURE 2, so that when the door latch 26 is closed in the keeper (not shown) of the door frame (not shown), the continuous lip portion 24 will be urged tightly against the door frame (not shown).
As previously explained, one of the problems confronting users of door constructions is that of keeping the proper camber in the door construction with respect to a particular door frame. Should the door construction lose its camber, cracks may occur between the top and bottom edges 18 and 20 of the door construction 10, thereby permitting snow or rain to enter the trailer or to produce cold air drafts in the trailer. The present invention provides means for setting the camber and the embodiment of FIGURES 1 to 7, inclusive, will be described first.
As here shown, a wooden frame member 28 extends between the front and rear sheet metal panels 12 and 14 from the top to the bottom edges 18 and 21) and adjacent the side edge 22. The frame member 28 is held in place by a suitable bonding agent, such as Chrysler Cycle-Weld, which bonds the frame member 28 to the inner surfaces of the front and rear sheet metal panels 12 and 14.
Formed longitudinally through the frame member 28 is a passageway or bore through which extends a tension rod 30. The frame member 28 has a corner removed, as at 32, to form a notch on the lower edge adjacent the rear panel 14, and a similar notch is formed at the upper end adjacent the rear panel 14. Small metal plates 34 and 36 are located in the notches with the upper end 38 g of the tension rod 30 being connected to the plate 34 so that it cannot rotate with respect thereto. In the disclosed embodiment this is accomplished by welding. The lower end of rod 30 is threaded, as at 40, and this end extends through the plate 36 and washer 42 and has a nut 44 1 threadedly connected thereto.
The frame member 28 also has a plurality of grooves or saw cuts 46 across its rear face so that the frame member 28 can be cambered more readily to a position wherein the increasing the camber in the frame member 28 and there- 'by in the door construction 10.
A modified form of the invention is shown in FIG- URE 8 and similar reference numbers are used to identify similar parts of the embodiment of FIGURES 1 to 7, inclusive. In the embodiment of FIGURE 8, the frame member 28 has been omitted, and in place thereof horizontal frame members are bonded in place between the front and rear panels at the top and bottom edges, with only the lower horizontal frame member 50 being shown. As there shown, the threaded end of the rod 30 can be seen with the frame member 50 notched in the same manner as was done with respect to the previously described frame member 28. Also shown is a corrugated pad 52 of the same type as is illustrated in the aforesaid Patents 2,781,875 and 2,818,946, and the rod 30 extends longitudinally therethrough. Increasing the tension in rod 30 acts to bow or camber the door construction 54 in generally the same manner as shown in FIGURE 2. In this embodiment there is no frame member tending to straighten the door when the tension rod or cable is loosened.
Having thus described our invention, we claim:
1. A door construction having front and rear sheet metal panels in spaced relation, three of the corresponding edges, including the top, bottom and one side edge, being shaped and fastened together to form a continuous marginal recess for fitting into a door frame, said one side edge being cambered to provide a concave face toward its rear panel, a relatively rigid resilient frame member mounted between said panels and extending vertically bet-ween said top and bottom edges and adjacent said side edge and operable to urge said side edge toward a straight position, and an adjustable tension element extending longitudinally through and operably connected to opposite ends of said frame member, said tension ele- 1 ing said frame member on tensioning said tension element,
rear surface is concave. The rod 30 is located more closely to the rear face of the frame member 28 than to its frontface so that when the nut 44 is screwed further into the tension rod 40, the-tensioning of the rod 40 will cam her the frame. member 28 in the desired direction and thereby increase the camber shown in FIGURE 2 of the door construction 10. While the disclosed embodiment shows a rod as the tensioning elementextending between opposite ends of the frame member 28, a suitable cable or other means can also be used.
For the purposes of adjusting the tensioning means by turning of the nut 44, a hole 48 is formed in the marginal recess at the bottom edge 20 through which a box wrench can be inserted for turning the nut 44. Thus, if the camber in the door construction is reduced during winter weather by contraction of the metal in the front panel 12 relative to the rear panel 14, the proper camber can be restored merely by opening the door, inserting a box wrench through hole 48 and onto nut '44 and screwing the latter further onto tension rod 30. This will have the effect of said door construction having an access opening for adjusting the tension of said tension element.
2. A door construction having front and rear sheet metal panels in spaced relation, three of the corresponding edges, including the top, bottom and one side edge, being shaped and fastened together to form a continuous marginal recess for fitting into a door frame, said one side edge being cam-bered to provide a concave face toward said rear panel, a wooden frame member mounted between said panels and extending vertically between said top and bottom edges and adjacent said side edge and having a plurality of relatively deep horizontal grooves facing said rear panel so that when opposite longitudinal compressive forces of sufficient magnitude are applied to the ends of said frame member the latter will be cambered to effect an increase in the camber of said side edge, a tension rod extending longitudinally through said frame member and operably connected against rotation to one end of said frame member and having a threaded end projecting from the other end of said frame member, a
nut threadedly connected to said threaded end and operable upon being turned in one direction to increase the tension of said rod and thereby the compressive forces acting upon opposite ends of said frame member, said sheet metal panels providing access means for fitting a wrench onto said nut for turning the latter.
3. A door construction as claimed in claim 2 wherein said access means comprises a hole formed in the bottom marginal recess in axial alignment with said rod.
4. A door construction having front and rear sheet metal'panels in spaced relation, three of the corresponding edges, including the top, bottom and one side edge, being shaped and fastened together to form a continuous marginal recess for fitting into a door frame, said one side edge being cambered to provide a concave face toward its rear panel, a pair of frame members secured between said panels and extending horizontally substantially the lengths of the top end bottom edges, a tension rod extending through each of said frame members adjacent said one side edge and having its upper end operably connected against rotation to the upper frame member, the lower end of said tension rod being threaded and project ing through the lower frame member, and a threaded member threadedly connected to the threaded end of said tension rod, said marginal recess in the lower edge providing an opening through which a tool can be inserted for turning said threaded member.
References Cited in the file of this patent UNITED STATES PATENTS FOREIGN PATENTS Great Britain Jan. 30, 1939
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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US28357A US3049202A (en) | 1960-05-11 | 1960-05-11 | Door construction |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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US28357A US3049202A (en) | 1960-05-11 | 1960-05-11 | Door construction |
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US3049202A true US3049202A (en) | 1962-08-14 |
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US28357A Expired - Lifetime US3049202A (en) | 1960-05-11 | 1960-05-11 | Door construction |
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Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3778934A (en) * | 1972-08-28 | 1973-12-18 | F Fisher | Door construction |
FR2236623A1 (en) * | 1973-07-12 | 1975-02-07 | Samson Emile | Straightener for warped door frames - sectional frame supports cross member for tensioning blocks |
US3893273A (en) * | 1973-07-19 | 1975-07-08 | Vernon R Sailor | Door with improved camber setting means |
US4064655A (en) * | 1975-10-16 | 1977-12-27 | Weyant Romer G | Door and method of making same |
US4125925A (en) * | 1977-01-28 | 1978-11-21 | Weyant Romer G | Method of making door |
US20100058705A1 (en) * | 2008-09-11 | 2010-03-11 | Hanson Elizabeth L | Door straightening system and methods of using same |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB324498A (en) * | 1929-01-04 | 1930-01-30 | William Pattinson | Improvements in insulated doors or doors of a great thickness such as doors for refrigerators, gas ovens or air chambers |
US2183015A (en) * | 1938-07-07 | 1939-12-12 | Frantz Mfg Co | Truss construction |
US2578240A (en) * | 1949-05-11 | 1951-12-11 | Green George Schuyler | Nonwarping trussed door |
US2781875A (en) * | 1953-03-17 | 1957-02-19 | B & N Aluminum Welding Corp | Door construction |
US2787030A (en) * | 1952-07-21 | 1957-04-02 | Williams David Franklin | Refrigerator door and adjustable pressure equalizing device |
US2818946A (en) * | 1955-09-09 | 1958-01-07 | B & N Aluminum Welding Corp | Door construction |
-
1960
- 1960-05-11 US US28357A patent/US3049202A/en not_active Expired - Lifetime
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB324498A (en) * | 1929-01-04 | 1930-01-30 | William Pattinson | Improvements in insulated doors or doors of a great thickness such as doors for refrigerators, gas ovens or air chambers |
US2183015A (en) * | 1938-07-07 | 1939-12-12 | Frantz Mfg Co | Truss construction |
US2578240A (en) * | 1949-05-11 | 1951-12-11 | Green George Schuyler | Nonwarping trussed door |
US2787030A (en) * | 1952-07-21 | 1957-04-02 | Williams David Franklin | Refrigerator door and adjustable pressure equalizing device |
US2781875A (en) * | 1953-03-17 | 1957-02-19 | B & N Aluminum Welding Corp | Door construction |
US2818946A (en) * | 1955-09-09 | 1958-01-07 | B & N Aluminum Welding Corp | Door construction |
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3778934A (en) * | 1972-08-28 | 1973-12-18 | F Fisher | Door construction |
FR2236623A1 (en) * | 1973-07-12 | 1975-02-07 | Samson Emile | Straightener for warped door frames - sectional frame supports cross member for tensioning blocks |
US3893273A (en) * | 1973-07-19 | 1975-07-08 | Vernon R Sailor | Door with improved camber setting means |
US4064655A (en) * | 1975-10-16 | 1977-12-27 | Weyant Romer G | Door and method of making same |
US4125925A (en) * | 1977-01-28 | 1978-11-21 | Weyant Romer G | Method of making door |
US20100058705A1 (en) * | 2008-09-11 | 2010-03-11 | Hanson Elizabeth L | Door straightening system and methods of using same |
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