US3795566A - Apparatus for attaching liner material to a base sheet - Google Patents

Abstract

Apparatus for attaching liner material, such as fiber glass or the like, to a base sheet, the apparatus including a table having a base frame and a top pivotally interconnected with the base frame, there being means for permitting swinging movement of the top about the pivot means whereby to tilt the top and therefore, the material carried thereby being a pressure roller assembly carried by the top frame of the table and spanning the same whereby, in either a horizontal or a tilted position, the pressure roller may be utilized to press the liner material against the base sheet.

Description

March 5, 1974 L R. EPLEY 3,795,566

APPARATUS FOR ATTACHING LINER MATERIAL TO A BASE SHEET 2 Sheets-Sheet l A from 5v5.

March 5, 1974 L.. R. EPI-EY APPARATUS FOR ATTACHING LINER MATERIAL TO A BASE SHEET 2 Sheets-Sheet 2 Filed June lO, 1971 mm mi 26 M-H-rrrrffflmllllhl 45 56 42 l m -I f'll t 4644 56 .50 40 Ulu.l 0 c Y .5. INVENTOR. Le@ f?. Ela/@ y United States Patent 3,795,566 APPARATUS FOR ATTACHIN G LINER MATERIAL T A BASE SHEET Lee R. Epley, Kansas City, Mo., assignor to Construction Plastics, Incorporated, Kansas City, Kans. Filed June 10, 1971, Ser. No. 151,828 Int. Cl. B30!) 9/00 U.S. Cl. 156-58 3 Claims ABSTRACT 0F THE DISCLOSURE Apparatus for attaching liner material, such as fiber glass or the like, to a base sheet, such as metal, the apparatus including a table having a base frame and a top pivotally interconnected with the base frame, there being means for permitting swinging movement of the top about the pivot means whereby to tilt the top and therefore, the material carried thereby being a pressure roller assembly carried by the top frame of the table and spanning the same whereby, in either a horizontal or a tilted position, the pressure roller may be utilized to press the liner material against the base sheet.

It is the primary object of this invention to provide a method and apparatus for attaching liner material to a base sheet and particularly, liner material such as large sheets of ber glass or other comparable insulating material which are to be attached to equally large sheets of metal, the lined sheets of metal then being fabricated into ductwork through sheet metal operations.

It has been found that due to the size of the pieces to be handled it is diicult for a single operator, or for that matter two operators, to readily and easily attach a lining material to large sheets of metal which are subsequently utilized to fabricate ductwork such as is now used in commercial installations.

Accordingly, it is an important object of this invention to provide, in a single apparatus, means whereby the base sheet, of metal or the like, may be readily placed in a position to be worked upon by a single operator whereby such operator may apply the lining material to the base sheet by following certain steps in utilization of the apparatus.

A most important object of this invention is to provide a table having a base frame and a top, the top having a `frame and receiving the base sheet in overlying relationship thereto, there being pivot means interconnecting the top of the table with the base frame, and means actuatable by the operator to tilt the top of the table from an initially horizontal position to an inclined position whereby the single operator may gain access to all areas of the large sheet of material which is carried by the tabletop.

Another important aim of the invention is to provide, in conjunction with the table, a trip bar carried by the base frame and means coupling the trip bar with the tabletop whereby, upon actuation of the trip bar, the tabletop may be manually swung to a selected position andretained in said position while the liner material is attached to the base sheet, other important objects of the invention including the details of vconstruction of the coupling means.

Yet another significant object of this invention is to provide, in conjunction with a table having ra base frame .and a swingable top, a pressure roller assembly which is carried by the top frame of the table, the roller spanning the width of the table and being movable therealong upon being storage areas for said roller at each endy of the table.

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Yet another important object of the invention is to provide a method lfor attaching liner material to a base sheet wherein the base sheet is placed upon the tabletop in an initially horizontal position, the table is then tilted to an inclined position and retained in said position, the exposed surface of the base sheet is coated with an adhesive, and the liner is then placed over the base sheet, the pressure roller then being utilized to adhere the liner to the base sheet, the table then being returned to a horizontal position whereby the finished material may be readily removed therefrom.

Other objects of this invention include details of construction of the apparatus and additional steps in the method which will be described hereinafter, reference being made to the accompanying drawings, wherein:

FIG. 1 is a front elevational view of the apparatus,

portions being broken away to reveal details of construction;

FIG. 2 is an end elevational view of the apparatus, the same being shown in its tilted position by dashed lines;

FIG. 3 is a sectional view taken along line 3-3 of FIG. 1;

FIG. 4 is an enlarged, fragmentary view, partially in section, of the pressure roller assembly supporting apparatus;

FIG. 5 is an enlarged, fragmentary, sectional view taken along line A5 5 of FIG. 1; and

FIG. 6 is an enlarged, sectional view taken along line 6 6 of FIG. 5.

The apparatus for attaching the liner material to a base sheet takes the form of a table 10 having a base frame 12 comprised of a plurality of horizontal members such as 14, and a number of vertical members 16, the base frame 12 being provided with suitable caster wheels such as 18 whereby the entire table 10 may be readily moved from point-to-point of use.

The table 10 is provided with a generally planar top 20 which is supported by a top frame 22 consisting of longitudinal members such as 24 which are interconnected by suitable transverse members 26. The top frame 22 and, therefore, top 20, is swingable from an initially horizontal position to an inclined position by 'virtue of the fact that top frame 22 is interconnected with base frame 12 by pivot means such as 28, illustrated in FIG. l, it being preferred that there be pivot means such as 28 positioned at the center of top 20 as well as at each of the ends thereof whereby to provide suitable support for the top frame 22 and top 20 when the same are rotated about said pivot means to an inclined position.

As illustrated, the pivot means includes a pin 30 supported centrally by a bearing 32 carried by base frame 12 and received at each end thereof by bearings 34 which are in turn connected with the top frame 22. As noted, similar structure is provided at the center of the top frame 22 as well as at each end thereof whereby to permit tilting of the top 20 of the table 10 with respect to the base frame 12 thereof.

In order to control the tilting of the top 20 with respect to base frame 12 and to permit tilting movement to a point selected by the operator of the apparatus, there is provided a trip bar 36 extending along the front of the table 10 and pivotally coupled thereto by suitable structure, the trip bar being swingable, for instance, from the position shown in full lines in FIG. 2 to the position shown by dotted lines thereof and being operable by the foot of the user of the table 10.

The trip vbar 36 is coupled with the table top 20 by means of cables 38 which are secured to the trip bar 36 adjacent each end thereof, the cables 38 each, in turn, being connected with a locking assembly broadly designated as '40`and best shown in FIGS. 5 and 6 of the drawings. A similar locking assembly such as 40 is provided at each end of the table 10, only one of the same being described hereinafter.

Thus, the locking assembly 40 includes a longitudinally reciprocable locking pin 42 which is carried by a housing 44 and biased to the left, viewing FIG. 5, by a coil spring 46 retained between walls of the housing 44, the shiftable locking pin 42 being selectively engageable with openings 48 provided in an elongated lock bar S0 which is carried by the tabletop and its frame by means of a pivotal connection 52 through a bracket 54 which depends from the tabletop 20, all as best seen in FIG. of the drawings.

As is evident from the drawings and the foregoing description, when the tabletop 20 is to be swung from an initially horizontal position to an inclined position about pivot means 28, the trip bar 36 is depressed whereby to move the same from the full-line position to the dottedline position of FIG. 2. Such depression serves to actnate cables 38 and thereby withdraw pins 42 against springs 46 from the hole 48 in locking bar 50 in which they are initially positioned. While holding the pins withdrawn from the holes in the loc-king bar, the operator of the table may tilt the same by pressing on the front edge of the top 20 in a downward direction whereby to rotate the same about pivot means 28 and thus swing the same to a position inclined to the horizontal as shown, for instance, by the dashed-line in FIG. 2 of the drawings. As is apparent from FGS. 2 and 5, as the table is swung to its tilted position, the locking bar 50 will continue to be retained, as between guides 56, in a position where a further opening, such as 48 therein, may then be engaged by the pin 42 when it is released for movement thereinto un-der the urging of spring 46. The locking bars 50, which are positioned at each side of the table, will then serve to retain the table in its inclined position and prevent downward swinging movement thereof as the same is utilized to carry out the method hereinafter described.

As is apparent, once it is desired to return the table to its horizontal position, the trip bar may again be actuated t0 withdraw the pin 42 from the lower holes in locking bar 50 and, by raising upon the front edge of the table, it can be swung to a horizontal position and be retained therein by virtue of engagement of the pin 42 with upper hole 48 as illustrated.

For purposes which will hereinafter be described in greater detail, the table is provided with a pressure roller assembly, broadly designated by the numeral 58 and illustrated in FIGS. 3 and 4 of the drawings, the presn sure roller assembly broadly including a handle 60 and a rotatable roller 62 which spans the width of the tabletop 20, there being means 64 mounting the pressure roller assembly 58 on the tabletop 20 and its frame 22.

The mounting means 64 include a trackway 66 which is secured to the top frame 22 as shown in FIG. 4, there being a trackway extending along each edge, front and back, of the top frame 22 of the table 10.

Mounting means 64 also includes a trolley 68 having a roller 70, which roller is received within trackway 66 whereby to permit movement of the trolleys 68 ltherealong.

The roller 62 is carried by the trolleys 68 by means of sleeves 72 which are telescoped into the trolleys 68, the sleeves, in turn, carrying the shaft 74 which rotatably supports the roller 62. Trolley 68 also carries a roller guide ball assembly 76 which bears against top frame 22 at a point below guide rail 66 whereby to stabilize the trolleys 68 as they are moved along the front and back edges of the top frame 22 of table 10.

In order to permit regulation of the pressure exerted by the roller 62, a tension spring 78 is disposed within sleeve 72, one end thereof being connected with a pin 80 carried by the sleeve 72, the other end thereof being connected with a spring adjusting screw 82 carried by trolley 68 and connected with the spring 78 through a nut 84. As is apparent, rotation of the screws 82 will tend to expand '4 spring 78 thereby drawing sleeves 72 and, therefore, shaft 74 downwardly, thus causing roller 62 to exert a greater pressure downwardly toward the tabletop 20.

It is to be noted that the trackways 66 extend beyond each end of the tabletop 20 as shown in FIG. 1 of the drawings, the extensions at each end being generally U- shaped and permitting movement of the pressure roller assembly 58 to a position of storage yas shown in the dashed lines of FIG. 1 whereby the pressure roller assembly is ont of the path of swinging movement of the table and beyond and below either end of the table whereby to permit ready access to the table as the following method is being carried out.

The method of utilization of the table 10 in attaching liner material to a base sheet follows the sequence of initially positioning the base sheet, such as a large piece of sheet metal, upon the top 20 of table 10 when the same is in a horizontal position.

The table 10is then tilted to place the sheet of base material in an inclined position, the tilting being accomplished through utilization of trip bar 36 and its associated locking assembly 40 whereby, when the table is swung to an inclined position it can be retained therein by virtue of lock bars 50.

Once the base sheet of metal has been swung to an inclined position, the same being retained on the table by means of a suitable front lip or the like, the operator is able to apply an adhesive material to the exposed surface of the base sheet by virtue of its position of inclination.

Since the table 10 is to be successively utilized in performing the present method, it is desirable to protect the top 20 from the adhesive and there is, therefore, provided adjacent the lower portion of the table 10 a paper roll holder 86 which carries a roll of paper 88 having a Width equivalent to that of the top of table 20, the paper 88 being preferably pulled from the roll and placed in a position covering the top of the tabletop 20 before the base sheet is initially placed thereon.

It should also be noted that, in Aorderto facilitate the placement of large sheets of material on the top 20 of the table 10, a roller, such as 90, is provided adjacent each end thereof, such rollers facilitating the loading and unloading of large shets offlat material onto the top 20 of the table 10.

Once adhesive has been applied to the exposed surface of the base sheet the liner material can be placed thereover, it being noted in this regard that it may be desirable to initially load the table with a sheet of metal already having the piece of liner material of an equivalent size in overlying relationship thereto, the liner material then being folded back to permit application of the vadhesive and then replaced over the base sheet after the adhesive has been applied, such a manner of operation precluding the necessity of initially loading the table with only the base sheet of metal and then subsequently placing the rather large liner sheet thereover.

Once adhesive has been applied to the exposed surface of the base sheet and the liner material placed thereover, it is desirable to apply pressure to the liner material to thoroughly secure the same to the base sheet. This is accomplished through the utilization of pressure roller assembly S8 and, as is apparent from the drawings and foregoing description, the pressure roller assembly may be grasped by handle 60 from its storage position, such as shown by dashed lines in FIG. 1, and moved' along the trackway 66 which is provided onthe front and back edges of the table 10, the roller 62 engaging the linermaterial and tightly pressing the same against the base sheet, the pressure being regulated by the adjusting means hereinabove described and illustrated in FIG. 4 of the drawings. If only a single pass of the roller is necessary it can be left in afposition of storage at theend of table 10 opposite to that from its initial position and, since `it is beyond and below the end of the table, it will not subsequently interfere with the use thereof.

Since it has been found desirable to reinforce the securement of the liner material to the base sheet by some mechanical means, the laminated product can be retained in its inclined position atop table 10 and the liner material mechanically pinned to the base sheet as by known means. In this regard however, it should be noted that the provision of a table which can be moved to an inclined position permits a single operator to not only adhesively secure the liner material to the base sheet, but t0 also mechanically pin the same thereto.

Once the pinning operation has been completed, if such operation is utilized, the table can be returned to its horizontal position through actuation of trip bar 36, and the composite, finished unit removed therefrom through utilization of roller 90 which facilitates movement of the large at piece from the table.

As is apparent, the table can then be reloaded with a succeeding base sheet and piece of liner material and the foregoing steps again followed in rapidly attaching the liner material to the base sheet. Thus there is provided apparatus and a method whereby a single operator may expeditiously and economically fabricate large sheets of material by attaching liner material to the base sheet with a minimum of movement and manual operation.

Having thus described the invention, what is claimed as new and desired to be secured by Letters Patent is:

1. Apparatus for attaching liner material to a base sheet comprising:

a table having a base frame;

a top for said table, said top having a frame;

pivot means interconnecting the top with the base frame for permitting tilting of said top with respect to said base frame; and

means for locking the top in a selected, tilted position,

said means including a lock bar swingably carried by said top frame and depending therefrom, there being a plurality of holes formed in said lock bar, a shiftable pin carried by the base frame and selectively engageable with the holes in said lock bar and a trip bar carried by the base frame and coupled with said pin for shifting the latter.

2. Apparatus for attaching liner material to a base sheet, comprising:

a table having a base frame;

a top for said table having a frame;

a pressure roller assembly carried by said top frame,

said pressure roller assembly including a roller spanning the width of said table and means mounting said roller on said top frame for movement along the length of said table top, said mounting means including a trackway on the front and back of the table and extending the length thereof and a trolley received by each of said trackways, said trolleys supporting said roller over said table top, the roller being vertically adjustable with respect to said trolleys whereby to regulate the position of the roller with respect to the table top.

3. Apparatus as set forth in claim 2, said trackways extending beyond the ends of said table to permit movement of the roller to a position of storage beyond and below either end of the table.

References Cited UNITED STATES PATENTS 1,792,209 2/ 1931 Allison 269-323 2,311,581 2/1943 Simmon 250-57 3,358,596 12/1967 Davis lOl- 269 3,388,659 6/1968 Hu lOl-269 3,633,505 l/l972 Ferrari lOl--269 WILLIAM D. MARTIN, Primary Examiner I. A. BELL, Assistant Examiner U.S. Cl. X.R.

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