US2973809A

US2973809A - Knock-down door buck with folding door guide means

Info

Publication number: US2973809A
Application number: US755608A
Authority: US
Inventors: Sklar Samuel
Original assignee: Individual
Current assignee: Individual
Priority date: 1958-08-18
Filing date: 1958-08-18
Publication date: 1961-03-07
Anticipated expiration: 1978-03-07

Description

March 7, 1961 s.'sK1 AR KNOCK-DOWN DOOR BUCK WITH FOLDING DOOR GUIDE MEANS 2 Sheets-Sheet 1 Filed Aug. 18, 1958 FIG. 2

FIG. I

INVENTOR. Jmvazz Jiez 42 ir A. I

March 7, 1961 s. SKLAR 2,973,809

KNOCK-DOWN DOOR BUCK WITH FOLDING DOOR GUIDE MEANS Filed Aug. 18, 1958 FIG.5

2 Sheets-Sheet 2 fa/wan Jiez 42 grroe/vaya' United States Patent KNOCK-DOWN DOOR BUCK WITH FOLDING DOOR GUIDE MEANS Samuel Sklar, 63153 Alberton St., Rego Park, NY.

Filed Aug. 18, 1958, Ser. No. 755,608

6 Claims. (Cl. 160-296) scribed and door buck constructions which shall com-- prise three preformed parts inexpensive to manufacture and requiring relatively unskilled labor for assembly and installation, which preformed parts in knock-down condition shall require a minimum of shipping space and shall permit easy and rapid installation on the framed doorway after the plaster or plasterboard is in place and finished, which shall be formed with a flange for contacting the plaster or plasterboard as a finished joint therewith, which door buck shall be particularly suitable for use on one sided doorways, that is, where only one side of the doorway is normally exposed to view so as to require a finished appearance, such as, on closets, and which shall provide an improved arrangement for hanging single or double folding doors including integrally formed guide means in the head piece of the door buck cooperating with a guide roller mounted on the free end of such folding doors, which guide roller shall be pivotally mounted in an improved fashion for controlling and guiding the folding movement of the door, which installation shall be rugged in construction and practical to a high degree in use.

Other objects of the invention will in part be obvious and in part hereinafter pointed out.

The inventionaccordingly consists of features of construction, combination of elements and arrangement of parts which will be exemplified in the construction hereinafter disclosed, the scope of the application of which will be indicated in the claims following.

In the accompanying drawing in which an illustrative embodiment of the invention is shown:

Fig. 1 is a perspective view of a portion of a wall having a doorway therein in which is installed a threepiece buck embodying the invention, a single-type folding door being indicated in broken lines.

Fig. 2 is an enlarged sectional view taken on line 2--2 in Fig. 1 showing details of the headpiece fitted over the plaster finish on a front side of the wall and secured to the horizontal lintel of the doorway; and also the position of the door guide roller fitting with respect to the guide track when a folding door is in closed position.

Fig. 3 is an exploded view of the corner construction of the door buck embodying the invention.

Fig. "4 is an end view of the buck embodying the invention with portions of wall and door framework omitted, parts being broken away to show interior construction.

I Fig. 5 is a sectional view taken on line 5-5 in Fig. 1 showing details of the buck construction, a folding door and guide roller mounting device being shown in closed Fig; 6 is a sectional view taken in a similar manner to Fig. 5 but through the opposite door post showing the folding door and guide roller mounting device in full open position, the folding door being indicated in broken lines in a partly closed position with parts of the head piece in phantom.

Fig. 7 is an enlarged fragmentary front elevational view of the buck and folding door embodying the invention, parts being broken away to show interior construction, and

Fig. 8 is a top perspective view of the free end of the folding door and guide roller mounting device removed from the guide track of the headpiece.

Referring in detail to the drawings, 10 denotes an improved folding door installation constructed to' embody the invention seen in Figs. 1 and 7 to include a door buck 11 mounting a folding door 20. Door buck 11 as shown in Figs. 1, 4 and 7 comprises three knock-down preformed interfitted parts, namely, a horizontal member or headpiece 12 and a pair of vertical members in the form of hinge-post jamb 17 and opposite jamb 18.

Headpiece 12 as best seen in Figs. 2, 3 and 4 may be formed of sheet metal into a channel shaped intermediate portion 13, a pair of opposite corner pieces 14, a pair of tab members 15 and a pair of angle pieces 16. Intermediate portion 13 has a front wall 13a upstanding from bottom wall 13b and a low rear wall 130 opposite front wall 13a also upstanding from bottom wall 13b. The top free end of front wall 13a is formed with an inturned flange 13d. If desired, a raised border 131: may be provided adjacent inturned flange 13d for decorative as well as strengthening purposes. As seen in Figs. 2, 4 and 5 bottom Wall 1312 is formed with a centrally located longitudinally extending slot 13 serving as a guide means or trackway for the folding door guide roller 21a in the manner hereinafter more fully described. If desired the side edges of slot 13 may have upturned flanges 13g providing track surfaces for engaging said roller 21a.

Corner pieces 14 are each formed with a front wall or face 14a of substantially square dimensions sized to conform to the width of front wall 13a and having inturned flanges 14b and raised border 14 along two ad jacent edges thereof conforming to and forming extensions of flange 13d and border 132 of intermediate portion 13. Tab members 15 each have a body portion 15a which may be sized and shaped to underlie corner piece front wall 1 4a and suitably secured thereto as by spot weld 15b shown in Fig. 4.

Aligning tabs

15c and 15d extend from two adjacent sides of body portion 15a and are located to project beyond the two adjacent edges 14d opposite the edges carrying inturned flanges 14b, aligning tabs 15d extending downwardly as an element'of a telescoping interfitting connection between opposite ends of headpiece 12 and upper ends of

jambs

17 and 18. Tabs extending horizontally behind intermediate portion front wall 1311 are spot welded as at 15e thereto, shown in Fig. 2, permanently and rigidly attaching corner pieces 14 to the opposite ends of intermediate portion 13 as corners for headpiece front wall 13a. Aligning tabs 15d are each formed with an inwardly tapering outer edge 15] and a through opening 15g adjacent the latter, the purpose of which will hereinafter more fully be described in connection with the assembly and installation of door buck 11.

The other or transverse elements of each of said interfitting connection between headpiece 12 and

jambs

17 and 18 are a pair of downwardly extending tabs 16aterminating opposite ends of intermediate portion bottomwall 13b. Said transverse tabs may be: integrally formed with bottom wall 13b or, as shown in Figs. 3 and 4, m'ay be suitably attached tosaidbottom wall-13b byproviding said tabs 16a as one arm of angle pieces 16, the other arm 16b being welded at 160 to bottom wall 13b.

Jambs

17 and 18, in a manner similar to intermediate portion 13, may be formed of sheet metal as channel shaped members which are identical in cross's'ection having front walls 17a and 18a and narrow

rear walls

17c and 180 extending from opposite edges of side walls 17b and 18b, respectively. The edges of front walls 17a and 18a opposite side walls 17b and 18b are inturned to provide flanges 17d and 18d, respectively. Where raised

borders

13c and 14c are provided on headpiece 12, conforming raised borders 17c and 18:? may be formed on front walls 17:! and 18a adjacent flanges 17d and 13d, respectively.

Iambs

17 and 18 have open opposite ends for selectively slipping over tabs 15d and 16a to form said interfitting connection with the opposite ends of headpiece 12. Said opposite ends are squared off, that is, have edges 17f and 18], respectively, extending at right angles with respect to the longitudinal axes of

jambs

17 and 18 for standing flat on flooring F and also abutting downwardly facing edges 14a of corner pieces 14. Hingepost jamb 17 may be provided with a pair of door hinges 19 mounted on side wall 17b by welding hinge member 19a thereto at preferably equal distances from each end of jamb 17. Thus

jambs

17 and 18 are interchangeable by inversion from right to left door hanging position.

Holes 13/1, 17g and 18g may be provided and suitably spaced along raised

borders

13c, 17e and 18e, respectively to receive fastening screws 11a, said holes, if desired, being formed to countersink the conical heads of screws 11a as is clear from Fig. 2.

Folding door 20 may be of any conventional construction shown in Figs. 5, 6, 7 and 8 to comprise two equally sized sections 20a and 20b joined together by hinges 20c, door section 20a being hingedly mounted on hinge-post jamb 17 by attachment to hinge member 19b to open in a frontward direction with respect to buck 11. Door section 20b folds against section 20a in the well understood manner and is suitably guided from closed to open position by guide roller 21a, the latter engaging in guide trackway 13 and being carried by guide roller mounting device 21 attached to top edge 20d adjacent the free vertical edge 204 Guide roller mounting device 21 is best shown in Figs. 7 and 8 as having a mounting plate 21b formed with spaced openings 21c for receiving screws 21d for attachment to top edge 20d of door section 20b, edge 20:! being cut away or recessed at 201 to seat device 21 below the level thereof. A roller arm 21 is pivoted adjacent one end thereof to plate 21b by a suitable pin 21a for limited swinging movement between a pair of

stop pins

21g and 21h upstanding from plate 21b and carries guide roller 21a adjacent the other end thereof mounted for rotation on an upstanding suitable stub shaft 211'.

The utility of the invention will now be apparent. Door buck 11 is utilized in a manner somewhat similar to my improved four position door buck described in Patent No. 2,799,370, granted July 16, 1957, for Knockdown Door Buck Construction. Preparatory to installation of buck 11, a doorway is framed in a wall W with vertical studs S and horizontal lintel L in the well understood manner to predetermined dimensions corresponding to the size of buck 11 to be used. Wall W may then be finished on the front side with plaster or plasterboard P extending substantially to the edge of the framed doorway.

Buck 11, delivered on the job in three-piece knockdown condition, is then simultaneously installed and assembled with a minimum of labor and skill by first positioning headpiece 12 so that the upper free edge of rear wall 130 of intermediate portion 13 abuts lintel L, the freoed ge of flange 13d abuts the surface of plaster or wall 13bis horizontally level the latter and tabs 16a engage in the open end thereof and thereafter

jambs

17 and 18 are brought to the vertical with the under and upper end edges 17f and 18] squarely resting on floor F and abutting downwardly facing edges 14d of corner pieces 14, respectively. in this position jamb side walls 17b and 18b are in right angular alignment with headpiece bottom wall 13b forming framing portions for folding door 20. The installation of buck 11 is then completed by securing headpiece 12 and

jambs

17 and 18 in said interfitted relation to lintel L and vertical studs S by means by said fastening screws 11a.

Folding door 20 previously fitted with guide roller mounting device 21 seated in recess 20f may then be hung on hinges 19 after guide roller 21a is properly located in trackway 13f. Where desired, a positive interconnection between headpiece 12 and

jambs

17 and 18 may be provided. To this end openings 17g of tabs 15d and the holes or openings 17g and 18g adjacent the squared cnd 17f and 18f are located to align with each other when the parts are assembled, as in Fig. 4, for receiving fastening screws 11a therethrough.

The operation of folding door 20 with guide roller 21a will now be clear. When folding door 20 is in fully closed position, that is, when door sections 20a and 20b are disposed in coplanar relation to each other framed by headpiece bottom wall 13b and jamb side walls 17b and 18b, with front facing surfaces of said sections 20!! and 29b substantially in coplanar relation to

front walls

13a, 14a, 17a and 18a of buck 11, roller arm 21 abuts stop pin 21g and extends toward hinge-post jamb 17, partially overlying mounting plate 21b as shown in Figs. 5, 7 and 8. As folding door 20 is opened, by pulling handle 20g outwardly and toward hinge-post jamb 17, roller arm 21 pivots on pin 21a in a clockwise relation with respect to plate 21b as observed from Fig. 6, while roller 21a moves along trackway 13f from right to left until folding door 20 reaches its fully open position at which point door section 20b is folded against section 20a and roller arm 21f is in an extended position with respect to plate 21b and abuts stop pin 2111. By pushing handle 213g in the opposite direction towards jamb 18 door 20 is guided to the closed position shown in Fig. 7. A suitable latching means of any well known construction (not shown) for retaining door 20 in closed position may be provided for manipulation by doorknob 20/1 to engage a suitable latchplate formed in side wall 18b of jamb '18 in the conventional manner.

As is clear from Figs. 2 and 7, headpiece rear wall not only provides along with rear walls and a rear finished abutting closure but also serves as a means for properly spacing bottom wall 13b from lintel L to permit roller 21a to extend upwardly into and through slot 13) so that door top edge 20d will neatly close below bottom wall 13b thereby eliminating any necessity of grooving lintel L to accommodate roller 21a.

To facilitate prefabrication of headpiece 12, corner pieces 14 may be made bilaterally symmetrical with respect to the diagonal axis passing through the upper finished corner thereof, as seen in Fig. 3, permitting identical corner pieces 14 to be utilized as both right and left corners. Thus by merely rotating the left corner piece 14 from the position shown in Fig. 3 through 90 the same becomes a right corner piece. In so doing tab 150 becomes tab 15d and the former is therefore also provided with a tapered outer edge.,and a through opening corresponding to edge 15f and opening 15g of tab 15a as clearly shown in Fig. 3.

It will be apparent that folding door 20 may be hung in the drawings b jambs 17, andyl8 to open from the left as well as from the right as shown.

folding doors, one set of doors hung on both right and left jambs and arranged to join in closed position at the center of the doorway in the well known manner. In such double folding door installations two hinge-post jambs 17 are utilized and headpiece 12 simply lengthened to accommodate the increase in doorway width with trackway 13) extending just short of the length of intermediate portion 13, that is, as in the single folding door installation shown in Fig. 5, terminating at opposite ends thereof at the inward edges of welded arms 16b of tab angle pieces 16.

It is thus seen that there is provided an improved folding door installation of the character described comprising a three-piece knock-down door buck with folding door guide means in which the several objects of this invention are achieved and which is Well adapted to meet the conditions of practical use.

As various possible embodiments might be made of the above invention and as various changes might be made in the embodiment above set forth, it is to be understood that all matters herein set forth or shown in the accompanying drawings are to be interpreted as illustrative and not in a limiting sense.

Having thus described my invention, I claim as new and desire to secure by Letters Patent:

1. A folding door installation of the character described comprising a three-piece preformed door buck having an integrally formed guide roller trackway, a folding door hinged on said door buck and a guide roller device mounted on a free edge of the door and engaging said trackway, said three-piece door buck being formed as a knock-down unit including a headpiece and a pair of channel-shaped jambs of identical cross-sectional configuration having opposite open ends squared off for selectively standing flat on a supporting flooring surface and formed with front and rear walls extending from opposite sides of a side Wall, said headpiece-having an intermediate channel-shaped portion and a pair of opposite corner pieces, said intermediate portion being formed with front and rear Walls upstanding from opposite sides of a bottom wall, said headpiece intermediate portion and jamb front walls having inwardly bent flanges extending from the free edge thereof to contact a building wall, said corner pieces each being formed with a front wall sized to fit as extensions of said intermediate portion and jamb front walls and having inwardly bent flanges on two adjacent edges forming corner extensions of said intermediate portion and jamb flanges, a, pair of aligning tabs extending laterally from the rear side of said corner piece front walls along the adjacent edges thereof opposite said flanged edges, one of said tabs being welded to the rear side of said intermediate portion front wall, the other of said tabs forming an element of an interfitting connection between said headpiece and the open squared off ends of the said jam'bs, a third tab forming the other element of said interfitting connection downwardly extending from each opposite end of said headpiece intermediate portion bottom wall at right angles to said second mentioned tabs, said intermediate portion bottom wall being formed with a longitudinally extending guide track, said guide roller device having a guide roller positioned to slide along said guide track and swingably mounted on a pivoted arm for guiding said folding door from a closed to an open position.

2. A folding door installation of the character described comprising a three-piece preformed door buck having an integrally formed guide roller trackway, a folding door hinged on said door buck and a guide roller device mounted on a free edge of the door and engaging said trackway for guiding the door from a closed tandem relation to an open folded position, said guide roller device including a mounting plate secured to the top edge of the door adjacent said free edge thereof and an arm pivoted adjacent one end to said plate to swing in a plane parallel to the plate and carrying a guide roller adjacent the opposite end mounted for 6 rotation on an axis perpendicular to said plane, and a stop means upstanding from said plate for limiting the swinging movement of said arm between a jack-knifed relation to the plate when the doors are in said closed position to an extendedrelation when the doors are in said open position.

3'. A preformed headpiece for a knock-down door buck construction comprising an intermediate elongated channel-shaped portion formed with front and rear walls upstanding from opposite sides of a bottom wall, said front wall having an inwardly bent flange extending from the top free edge thereof for contacting a building finished wall surface, a pair of corner pieces each having a front wall and inwardly bent flanges on two adjacent edges thereof, one corner piece being attached to' each opposite end of said intermediate portion in front wall and inwardly bent flange alignment relation, said corner pieces each having a tab member attached to the rear side of said front wall, said tab member having a pair of tabs extending at right angles to each other beyond the two adjacent edges of the front wall opposite said flanged adjacent edges, one of said tabs extending behind the intermediate portion front Wall forming said attachment thereto, the other of said tabs extending downwardly below said intermediate portion bottom wall forming an element of a telescoping interfitting connection between the headpiece and a jamb of said buck, an outer edge of said other tab being tapered to permit assembly of said interfitting connection, and another pair of downwardly extending tabs terminating opposite ends of said intermediate portion bottom wall at right angles to said last mentioned tab forming the other ele ments of said telescoping interfitting connection.

4. A folding door installation of the character de scribed mounted in a framed out doorway having a hori- Zontally extending lintel, comprising a three-piece preformed door buck having an integrally formed guide roller trackway, said three-piece door buck being formed as a knock-down unit including a headpiece having opposite ends formed with downwardly extending interconnecting means and a pair of channel-shaped jarnbs of identical cross-sectional configuration having opposite open ends squared off for selectively standing flat on a supporting flooring surface and telescopingly engaging said interconnecting means, said headpiece having a channel-shaped intermediate portion formed with front and rear walls upstanding from opposite sides of a bottom wall, said front wall being relatively-higher than said rear wall, said bottom wall having a longitudinal slot cut out forming said guide roller trackway, a folding door hinged on said door buck and a guide roller device mounted on a free edge of the door and engaging said trackway for guiding the door from a closed tandem relation to an open folded position, said guide roller device including a mounting plate secured to the top edge of the door adjacent said free edge thereof and an arm pivoted adjacent one end to said plate to swing in a plane parallel to the plate and carrying a guide roller adjacent the opposite end mounted for rotationon an axis perpendicular to said plane, said headpiece rear wall extending in right angular abutment to said lintel and spacing said headpiece bottomwall and slotfrom the lintel to accommodate said roller and provide a neatly fitting door closure.

5. A folding door installation comprising a threepiece preformed door buck having an integrally formed guide roller track, said three-piece door buck being formed as a knock-down unit including a headpiece having opposite ends formed with downwardly extending interconnecting means and a pair of channel-shaped jambs of identical cross-sectional configuration having opposite open ends squared, off for selectively standing being formed with front and rear walls extending from opposite sides of a side wall, said headpiece including an intermediate elongated channel-shaped portion formed with front and rear walls upstanding from opposite sides of a bottom wall, said jamb and headpiece front walls having inwardly bent flanges extending from the free edges thereof for contacting a building finished wall surface, a pair of corner pieces each having a front wall sized to fit as extensions of'said intermediate portion and jamb front walls and having inwardly bent flanges on two adjacent edges forming corner extensions of said intermediate portion and jamb flanges, said corner pieces each having a tab member attached to the rear side of said front wall, said tab member having a pair of tabs extending at right angles to each other beyond the two adjacent edges of the front wall opposite said flanged adjacent edges, one of said tabs extending behind the intermediate portion front wall forming said attachment thereto, the other of said tabs extending downwardly below said intermediate portion bottom wall forming an element of said interconnecting means, an outer edge of said other tab being tapered to permit assembly of the headpiece with said jambs, and another pair of downwardly extending tabs terminating opposite ends of said intermediate portion bottom wall at right angles to said last mentioned tab forming the other elements of said interconnecting means.

6. The preformed headpiece defined in claim 3 in which said corner piece front walls are square in contour and said corner pieces and tab members are bilaterally symmetrical with respect to a diagonal axis to provide interchangeability thereof.

References Cited in the file of this patent UNITED STATES PATENTS 821,201 Taylor May 22, 1906 1,612,497 Dodge Dec. 28, 1926 1,612,499 Etheredge Dec. 28, 1926 1,723,281 Levy Aug. 6, 1929 1,723,991 Baum Aug. 13, 1929 2,043,174 Jacobson June 2, 1,936 2,230,475 Albach et al. Feb. 4, 1941 2,703,140 Bonawit Mar. 1, 1955 FOREIGN PATENTS 1,051,536 France Jan. 18, 1954