US3020563A

US3020563A - Clamping arrangement for sink structure

Info

Publication number: US3020563A
Application number: US75997A
Authority: US
Inventors: Matyas J Just
Original assignee: Just Manufacturing Co
Current assignee: Just Manufacturing Co
Priority date: 1960-12-15
Filing date: 1960-12-15
Publication date: 1962-02-13
Anticipated expiration: 1979-02-13

Description

Feb. 13, 1962 M. J. JUST CLAMPING ARRANGEMENT FOR SINK STRUCTURE Filed Dec. 15, 1960 United States Patent Ofifice 3,920,563 Patented Feb. 13, 1962 3,020,563 CLAMPING ARRANGEMENT FOR SINK STRUCTURE Matyas-J. Just, Chicago, Ill., assignor to Just Manufacturing Company, a corporation of Illinois Filed Dec. 15, 1960, Ser. No. 75,997 4 Claims. (Cl. 4-187) This invention relates to a sink and drainboard structure and particularly to an improved clamping arrangement for attaching a sink to a drainboard.

A prime object of this invention is to provide an improved clamping structure for connecting a sink to a drainboard without the necessity of utilizing a separate attaching ring such as is used in conventional designs.

Another object of the invention is to provide an improved clarnping structure for connecting a sink within the opening of a drainboard, the clamping structure being efiective to tightly clamp the sink rim against the drainboard to prevent leakage and being simple in design whereby an installer can quickly and efiiciently perform the installing procedure. I

Another object of the invention is to provide an efiective clamping structure for clamping a sink bowl and rim to a drainboard, the clamping structure including horizontally adjustable clamping elements attached to the underneath side of the rim so that the clamping elements can be horizontally adjusted and secured in a number of positions whereby eifective clamping and sealing of the rim structure of the bowl is achieved with respect to the drainboard.

A more specific object is the provision of a simplified and improved clamping structure for attaching a sink bowl and rim to a drainboard, the said clamping structure including channel-shaped members having inwardly directed hook portions and including a plurality of clamping elements having prongs engageable with the hook portions and being arranged to be drawn downwardly with respect to the drainboard for tightly securing the rim structure of the sink against the upper surface of the said drainboard.

These and other objects will become more readily apparent from a reading of the description when examined in connection with the accompanying sheet of drawing.

In the drawing:

FIGURE 1 is a plan view of a drainboard and sink arrangement;

FIGURE 2 is a bottom view when looking upwardly against the drainboard and sink installation shown in FIGURE 1;

FIGURE 3 is a cross-sectional view taken substantially along the line 3-3 of FIGURE 1; and I FIGURE 4 is an enlarged exploded view in perspective showing an improved clamping structure for attaching a sink within the opening of the drainboard.

Referring now to FIGURES 1 and 2a sink arrangement is generally designated by the reference character It). The sink arrangement comprises a drainboard 11 having a rectangular opening 12. The drainboard ll consists of conventional construction including a plast ic top 14 and including suitable laminations 15 having connected thereto a lower plastic bottom 16.

A sink or lavatory construction is generally designated at 17 and comprises an upper surface 18 and a bottom surface 19. The sink 17 also includes a bowl 20 having sides 21 and an outlet 21'. A rim 22 is formed integrally with the upper and

bottom surfaces

18 and 19 and extends around the bowl 20 the said rim 22 having an underneath surface 23 and including a peripherally extending bead 24 which as best shown in FIGURE 3, engages the upper plastic top 14 of the drainboard 11.

i is secured to the drainboard 11 by means of a mounting The sink structure above described is conventional and assembly or arrangement generally designated at 25 and best shown in FIGURES 3 and 4. The mounting assembly 25 comprises a plurality of channel brackets 26 which as shown in FIGURE 2 are elongated and are suitably secured to the underneath side 23 of the rim 22 and also to the bottom surface 19. Each channel bracket may be suitably connected by brazing, welding or other securing means to the underneath surface 23 of the rim 22 as desired. Each channel bracket 26 is of V or generally U-shaped design and includes a pair of connected flanges 27 and 28, the flanges 27 being secured to the underneath side 23 of the rim 22 and the flange 28 projecting downwardly and in relatively right angle relation with respect to the flanges 27. The flanges 27 and 28 each have a lip 29 integral therewith the said lips extending inwardly toward each other and being laterally spaced to provide an elongated slot on each of the brackets 26.

An L-shaped securing member, is best shown in FIG- URES 3 and 4, and is generally designated by the reference character 30. As shown in FIGURES 1 and 2 a plurality of the L-shaped securing members 30 are disposed on the brackets 26 in horizontally spaced relation as desired in order to secure eflicient and adequate clamping of the sink 17 to the drainboard 11. Each L-shaped securing member, as shown in FIGURES 3 and 4, includes a vertical leg 31 and a horizontal leg 32. The horizontal leg 32 includes a vertically extending thread ed or tapped hole 33 which is disposed in laterally spaced relation with respect to' the vertical leg 31. A screw 34 is threadedthrough the tapped hole'33 and includesat its lower end a screw driver slot 35. The upper end of the screw is provided with a suitable clamping head or pad 36 which engages the plastic bottom 16.

The upper end of the vertical leg 31 is provided with a head having prongs 37 projecting outwardly with re spect thereto, the said prongs 37 each including a flat edge 38 which engages the lips 29 in hook-like engagement. The uppermost prong 37, as shown in FIGURE 3, is also provided with a flat upper edge 40, which being substantially parallel to the flange 27, will engage the underneath side of the flange 27 when the screw 34 is tightened to restrain the securing members 30 from pivoting on the seat 29, so as to maintain the position thereof as shown.

During the assembly of the sink 17 to the drainboard 11 it is simple matter to insert the heads 37 through the slots of the brackets 26 and then by simply turning the brackets 30 to the position shown in FIGURE 3 the prongs 37 are engaged with the lips 29 and the clamping elements are positioned and secured. The clamping elements now, of course, can be longitudinally or horizontally adjusted as desired to the proper position so as to elfectuate tight clamping engagement of the rim portion 24 with respect to the drainboard 11. When the clamping elements have been placed in the proper horizontal position it is a simple matter to insert a screw driver in the screwdriver slot 35 and by tightening the screw 34 and pad 36 against the plastic bottom 16-the clamping elements 30 will be urged downwardly thus drawing the rim portion 24 downwardly in tight clamping and sealing engagement with respect to the plastic top 14. In the untightened position of the securing members 30, the flat edges 38 will engage the lips 29 to retain the securing members 30 on the brackets 26. When the screw 34 is tightened, there is of course a tendency for s 3 Thus it is obvious that an effective and positive clamping arrangement for a sink structure has been described. It must, of course, be understood that changes and modifications may be made which do not depart from the spirit of the invention as disclosed .or from the scope thereof as defined in the appended claims.

What is claimed is:

1. In a sink structure including a drainboard having an upper surface and having an opening, a sink positioned within said opening, said sink including a bowl and a horizontal rim extending around said bowl, said rim having an edge portion engaging the upper surface of said drainboard; a clamping structure for securing said sink to said drainboard comprising a plurality of elongated brackets connected to said rim and projecting downwardly within said opening, said brackets being substantially coextensive with said rim, each bracket being of V- shape including a first flange extending horizontally with and being connected to said rim and a second flange projecting downwardly with respect to said rim, each of said flanges having lips projecting inwardly toward each other and diagonally with respect to said first and second flanges and being relatively laterally spaced to provide elongated slots in said channels, a plurality of securing clamps connected to said channels, each clamp including an L-shaped member having a horizontal leg and a vertical leg connected thereto, said horizontal leg having a vertical threaded opening, a vertical threaded fastener in each opening and adapted to engage the underneath side of said drainboard, an engaging head on each vertical leg, said head including opposed outwardly extending prongs insertable through said slots, said prongs having edges extending diagonally relative to said flanges and engaging said lips within said channels to be retained therein, said prongs including means engageable with said first flange during tightening of said fastener to retain L-shaped member in position whereupon tightening of said fastener said sink is secured to said drainboard.

2. In a sink structure including a drainboard having an upper surface and having an opening, a sink positioned within said opening, said sink including a bowl and a horizontal rim extending around said bowl, said rim having an edge portion engaging the upper surface of said drainboard; a clamping structure for securing said sink to said drainboard comprising a plurality of brackets connected to said rim and projecting downwardly within said opening, each bracket being of *V-shape including a first flange extending horizontally with and being connected to said rim and a second flange projecting downwardly with respect to said rim, each of said flanges having lips projecting inwardly toward each other and diagonally with respect to said first and second flanges, and being relatively laterally spaced to provide slots in said channels, a plurality of securing clamps connected to said channels, each clamp including an L-shaped member having a horizontal leg and a vertical leg connected thereto, said horizontal leg having a vertical threaded opening, a vertical threaded fastener in each opening and adapted to engage the underneath side of said drainboard, an engaging head on each vertical leg, said head including opposed outwardly extending prongs insertable through said slots, said prongs having edges extending diagonally relative to said flanges and engaging said lips within said channels to be retained therein, said prongs including means engageable with said first flange during tightening of said fastener to retain L-shaped member in position whereupon tightening of said fastener said sink is secured to said drainboard.

3. In a sink structure including a drainboard having an upper surface and having an opening, a sink positioned within said opening, said sink including a bowl and a horizontal rim extending around said bowl, said rim having an edge portion engaging the upper surface of said drainboard; a clamping structure for securing said sink to said drainboard comprising a plurality of brackets connected to said rim and projecting downwardly within said opening, each bracket being of V-shape including a first flange extending horizontally with and being connected -to said rim and a .second flange projecting downwardly with respect to said rim, each of said flanges having lips projecting inwardly toward each other and diagonally with respect to said first and second flanges, and being relatively laterally spaced to provide slots in said channels, a plurality of securing clamps connected to said channels, each clamp including an L-shaped member having .a horizontal leg and a vertical leg connected thereto, said horizontal leg having a clamping fastener adapted to engage the underneath side of said drainboard, an engaging head on each vertical leg, said head including .opposed outwardly extending prongs insertable through said slots, said prongs having edges extending diagonally relative to said flanges and engaging said lips within said channels to be retained therein, said prongs including means engageable with said first flange during tightening of said fastener to retain L-shaped member in position whereupon tightening of said fastener said sink is $6- cured to said drainboard.

4. In a sink structure including a drainboard having a flat surface including an opening, a sink including a rim and a bowl, said bowl being positioned within said opening, a portion of said rim engaging said flat surface around said opening; a clamping structure for clamping said rim portion tightly against said drainboard surface to retain said bowl within said opening comprising, a plurality of brackets connected to the rim between the opening and said bowl and projecting downwardly, each bracket including legs relatively disposed in generally V- shaped fashion and having lip portions projecting diagonally relative to said legs toward each other and being laterally spaced to provide a slot on each bracket, a clamp having a portion extending vertically and includ ing a head portion at its upper end insertable through each slot, said head including projecting hooks having portions complementing and engaging said lips, screw type fastening means associated with said vertical portion and adapted to engage said drainboard during tightening and to urge said clamp downwardly whereby said rim portion is tightly clamped on said drainboard, and means on said hooks engaging said lips and said legs within said brackets to restrain said vertical portion against pivotal movement during tightening of said fastening means.

Domestic Engineering, page 62. May 1958.)