US2336952A - Mattress border forming device - Google Patents

Description

Dec. 14, 1943. a. OLSON- MATTRESS BORDER FORMING DE VICE Filed Sept. 18, 1939 3 Sheets-Sheet l Dec. 14, 1943. e. OLSCVJN 2,336,952

MATTRESS BORDER FORMI NG DEVICE Filed Sept; 18',- 1939 3 Sheets-Sheec 2 WWW Dec. 14, 1943. G OLSON 2,336,952

MATTRESS BORDER FORMING DEVICE I Filed Sept. 18, 1939 3 Sheets-Sheet 3 Patented Dec. 14, 1943 ilhii'i'h TJKAT'ERESS BQRDER FOR-li/HNG DEVICE Gilbert @lson, Minneapolis, Minn, assignor to The Land-O-Nod Company, Minn, a corporation of Minnesota Minneapolis,

Application September 18, 1939, Serial No. 295,535

6 Claims.

My invention relates to a device for forming a mattress border wherein it is desired to provide a strong reinforced border at a minimum of cost.

Mattress border have usually been formed of a pair of spaced sheets of cloth, having sand- Wiched therebetween a filling of cotton padding or the like. The inner and outer coverings have usually been stitched or riveted together at intervals to provide a. reinforced Wall which will maintain its shape throughout a long period of use.

It is a purpose of the present invention to form a mattress border or boxing in which a single sheet of covering cloth i folded over the longitudinal edges of a thickness of padding material and in which the seam is positioned between the edges of the border or boxing and is concealed by means of the outer border covering. In this construction the padding is confined by the folded edges of the covering and is held firmly enclosed within the covering by rows of stitching extending through the coverings and the padding.

It is an object of the present invention to provide a mattress border formed of a thickness of padding havin a single sheet of casing material folded over the longitudinal edges of the same and to provide a reinforced edge on t e casing material to assure the enclosure of the padding within the mattress wall. This reinforced closure is formed by folding back the marginal edges of the casing material to provide a double thickness of the casing material at the seam between the longitudinal edges of the material to ascertain that the edges of the casing 3 material will be securely anchored within the mattress wall. This construction thus definitely confines the material within the mattress border and insures a permanent enclosure for the padding within the mattress wall.

It is the purpose of m invention to provide a guide for the padding material to direct this material to overlie the center of a sheet of casing material; and then to fold the casing material over the longitudinal edges of the padding to enclose the same. It is a, further feature of a preferred form of my invention to fold back the marginal edges of the padding by a suitable guide means and to applyan outer covering member over the folded marginal longitudinal edges of the casing material so that the seam will be securely bound. to permanently enclose the padding material.

It is a further feature of my invention that the border unit including the padding with the casing wrapped about the longitudinal edges thereof and the outer border covering materialoverlying the casing seam may be introduced to stitching means which will secure the opposed sides of the assembly along parallel rows of stitches or may be introduced to stitching means which will stitch the mattress border along wavy lines to form a desired decorative pattern on the border.

It is a further feature of my invention to apply a certain amount of tension upon the casing material so that this material must be drawn forcibly through the machine, thus keeping the casing material taut as it passes through the machine. In this Way the casing material may be more easily folded and the folding back of the marginal edges of the casing material may be facilitated.

It is an added feature of my invention that in one preferred form of my device the casing material is overlapped along its connecting edges so that the seam need not be covered by the outer covering member as described. It is also readily possible to secure the outer covering strip on the side of the border opposite the casing seam, so that the outwardly folded marginal edges of the casing may be secured to the inner lining of the mattress extending over the spring unit. In this way the casing may be secured to the inner mattress lining on one side of the mattress border while the outer mattress covering may be secured to the border covering strip secured to the outer surface of the border.

These and other object and novel features of my invention will be more clearly and fully set forth in the following specification and claims.

In the drawings forming a part Of my specification:

Figure 1 is a side elevation view of my device for forming a mattress border.

Figure 2 is a top plan View of the device illustrated in Figure 1.

Figure 3 is a. cross-sectional view in enlarged scale on the line 3-3 of Figure 2, illustrating the construction of the guides.

Figure 4 is a cross-sectional View in enlarged scale on the line 3-4 of Figure 2.

Figure 5 is a cross-sectional view of the border construction formed by the forming device.

Figure 6 is an enlarged portion of the section shown in Figure 5.

Figure 7 illustrates a mattress employing a border of the type formed on my device.

Figure 8 is a side elevation view of an alternate type of border forming device.

Figure 9 is a top plan view of the forming device illustrated in Figure 8.

Figure 10 is a cross-sectional view through the border formed in the device illustrated in Figures 8 and 9.

Figure ll is a view similar to Figure 4, showing the device arranged to overlap the folded marginal casing edges.

Figure 12 in a cross-sectional view through a mattress border constructed on the machine formed as in Figure 11.

Figure 13 is a section through a mattress having a border constructed as illustrated in Figure 12. Y

The invention discloses a device for forming a mattress wall in readiness for use upon the edge of a mattress. The device comprises a. frame It having mounted thereupon a bracket arm I I supporting a series of parallel spaced rods or rollers I2. The sheet l3 of casing material exends from the supply pile or roll I4 and passes over the center roller I2, beneath the lower-most roller or rod I2, and over the upper-most roller I2. Movement of the casing material I3, over thevarious rods or rollers I2, imparts a retarding action to the cloth, the movement of the cloth by the bars or rollers creating enough friction to retard movement of the cloth through the device.

The casing material passes beneath a guiding trough I5 having opposed curved side edges I6 and a fiat bottom portion I'I. This trough is curved upwardly at the extreme end I9 so as to curve the cloth casing sheet I3 smoothly beneath the same. The side edges of the cloth sheet I3 are bent inwardly about the opposed curved edges I6 of the guide I5 by means of a second guide enclosing the outlet end of the guide I5 and being spaced therefrom.

The guide I5 is supported as best illustrated in Figure 4 of the drawings. As will be noted in Figure 2, the guide I5 is provided with sup porting portions 2| which connect the opposed sides of the curved edge portions I6 of the guide I5. Bolts 22 and 23 extend through the cross membersZI and adjustably hold the guidev l5 sus" pended beneath substantially U-shaped frame members 24 and 25 respectively. As will be notedv from Figure 4 of the drawings, the frame member 25 has a transversely extending top member 26 and legs 21 secured to the table top 29 of the frame II] by bolts such as 35. The frame 24 is formed in a manner similar to the frame 25.

In Figure 4 of the drawings, it will be noted that the bolt 23 suspends the transversely extending connecting member 2I at a considerable distance below the cross member 26 of the frame 25. A cross member 3I connects the supporting legs 21 of each frame 24 01 25, and the outer guide channel 20 rests upon and is secured to the cross member 3| by any suitable means such .as the bolts 32. The channel guides I5 and 20 are supported in spaced relationship so that the casing sheet I3 may extend between .these spaced uides.

It will be understood that the sheet I3 has a natural tendency 'to remain flat as it leaves the tension applying rods l2 and therefore themarginal edges 33 remain flat as the casing materialis folded. The'shape of the casing is defined by the spaced guides I5 and 20, the guide l5 providing a mandrel about which the. casing 13 may be folded, and the curved marginal zed est i of the guidejzfl acting as folding horns to fold the casing material inwardly about the inner guide I5. The outer guide is provided with an inclined or beveled edge 35 which acts to gradually urge the casing sheet I3 upwardly and inwardly about the inner guide. As the casing sheet I3 is wider than the guide 65, the marginal edges 33 fold back over th inwardly ex-- tending guide flanges 34 on the guide 20. The casing material is thus formed into substantially a tubular casing which is relatively wide and not extremely high, with the longitudinal edges of the casing folded back upon itself to form a reinforced marginal casing edge.

A wide and relatively thin strip of padding material 36 is wound in a roll 3?, placed upon a supporting shaft 39 on an upwardly extending bracket 45, forming a part of the frame iii. The padding strip 39 is pulled from the roll 37 to rest upon the inner surface of the guide channel !5. The strip 35 contacts the channel I5 adjacent the upwardly curved end is of the same and enters the channel I5 before the casing material has been folded sufiiciently to prohibit entrance of the padding between the longitudinal edges of the casing.

A strip of border finishing material il is drawn from the roll 42 supported upon a bracket 48 on the supporting bracket 45, is drawn through a guide 44 to overlie the surface of the casing and padding after the casing has been folded about the padding. Both the guide I5 and the guide 20 terminate at a point spaced from the U- shaped frame 25 after the casing material has been folded about the padding strip 35. The covering or finishing border strip M is then drawn from the roll 42 to overlie the seam between the folded edges of the casing strip 13, and the entire assembly passes between guide rolls 45. A pair of feed rolls G5 are positioned in spaced relation to the guide rolls 45 and a series of stitching heads 31 sew a series of parallel lines 'of stitching through the assembled unit. The rows of stitching pass through the border covering member, the .casing material, and the padding to provide a series of parallel restricted zones in the mattress'border. The stitching heads and the feed rollers are actuated by a belt 49 extending about a pulley 50 which is driven by a belt 5| rotated by amotor 52.

It will be noted that through the foregoing construction, the casing material is folded about the wall padding material, and that the marginal edges of the casing material are folded outwardly upon itself to reinforce the edges of the casin material. An xamination of Figures 5 and 6 of the drawings will show that the lines of stitching 53 extend through the folded marginal edges 33 and in preferred form extend beyond the outer-most rows of stitching 53 to form flaps 55. These ham 5 may be of benefit in the manufacture of the mattress, as in some forms of mattress construction it is desired to extend the inner lining 55 covering, the springs 55 out over the opposed edges 51 of the mattress border to attach the lining 55 marginally to theattaching flaps .54. When the border has been attached to the inner lining 55 in this way, padding 59 is placed to overlie each of the linings 55 and an outer covering member 63. overlies the padding 59 to be marginally connected by stitching 6.I to the border covering member' li.

Thus not only do the folded edges 33 act to provide a reinforced edge through which the rows of stitching'53 may extend, but also these folded edges 33 may form attaching flaps to secure the mattress border to the mattress.

In Figures 8 and 9 of the drawings, I disclose a slightly modified form of construction in which the mattress border is stitched along curved or wavy lines to provide a decorative design in the stitching along the border. Two units of the machine are shown side by side in Figure 9 of the drawings. The construction of the folding machines for the border are, however, identical to those which have been previously described. A frame 62 supports a pair of spaced U-shaped frame members 63 for each of the border forming units, which frame members are identical to the frame members 24 and 25. A guide 54 identical to the guide it is suspended from the frame member 63 and a cooperating trough-shaped guide 65 supported by the frame members 63 acts to fold the casing sheets 66 about the padding strip 6? which is unrolled from the roll 69 supported by a suitable bracket 'li'i. After the casing sheet t has been folded about each of the padding strips 6i, the enclosed padding is guided by the rollers H upwardly over the guide table if. The border covering strip 73 is drawn from a roll M rotatably mounted upon a bracket and overlies the enclosed padding in a manner which has been previously described. The guide 76 directs the assembled unit upwardly beneath the stitching unit Tl which acts to sew a pattern upon the border. Feed rolls l9 draw the padding past the stitching heads Ti and from the various rolls.

It will be seen that the machines illustrated in Figures 8 and 9 are very similar to that previously described with the exception that the mattress border after it has been assembled is carried vertically past the stitching head H to permit the decorative border to be formed thereby. The border formed is illustrated in Figure 10 of the drawings and is virtually identical with the border illustrated in Figure 5 with the exception that more lines of stitching 88 are often formed on the machine illustrated in Figures 8 and 9.

It will be noted that the marginal edges 8| of the casing 66 are folded outwardly to form a reinforced marginal edge, but in the form illustrated in Figure 10, the edges 8| are not folded back. Whether or not the binding edge is formed depends upon the width of casing material used, as if a wider casing material is used, the marginal edges of the casing will fall back farther than they will when other material is used. The

unfolded edge construction shown in Figure 10 is not peculiar to the particular stitching shown in this figure, but could be used as in Figure 5. Similarly, the border of Figure 10 could have folded edges.

In Figure 11 I disclose an arrangement of guides which will permit the casing 82 to be folded with its edges in overlapping relation. The guiding trough 83 (similar to the guiding trough I5) is provided with one inwardly projecting edge 8 which extends laterally beyond the center. A second inwardly projecting edge 85, rather than being formed in opposed relation to the edge 84, is above the level thereof, and the marginal edge of the edge 85 is in overlapping relation with the edge 84.

An inverted U-shaped bracket 85 similar to the frame member is provided with parallel supporting legs 87 and a connecting cross member 89. A parallel cross member 90 forms a side containing the seam.

support to which the trough 83 is attached by bolts 9!.

An inner forming trough 82 is supported within the trough 83 in spaced relation thereto. The trough 92 is suspended fro-m the cross frame member 89 by means of a rod or strip 93. The rod 93 extends downwardly from the crossmernber 89, transversely between the overlapping edges 8 and 85, and downwardly into engagement with the cross connecting member 94 on the inner trough 92. In this construction (as in the previously described construction) the covering strip 95 may j oin the assembly from the under side, to be on the side of the border opposite the The assembly is stitched as at 93.

The manner in which the border of Figure 12 can be secured in a mattress is shown in Figure 13. The folded marginal edges 96 and 97 are attached to the marginal edges of the upper and lower linings 99 and EB!) which extend over and under, respectively, the spring unit Ill]. The outer covering strip 95 is marginally secured to the top covering H32 and the bottom covering Hi3, respectively. Padding I64 extends between the linings 99 and [E30 and the adjacent coverings H32 and H33, and the edges of the borders may overlie the marginal edges of the spring unit H35, as shown. The filling within the border is designated by numeral led.

In accordance with the patent statutes, I have described the principles of construction and operation of my mattress border forming device; and while I have endeavored to set forth the best embodiments thereof, I desire to have it understood that these are only illustrative of ways of carrying out my invention, and that obvious changes may be made within the scope of the following claims without departing from the spirit of my invention.

I claim:

1. In a device for forming mattress borders, the combination of folding means for the casing material thereof, comprising a pair of vertically spaced guide plates of substantially like dimensions adapted to receive the casing material therebetween, oppositely disposed folding horns adjacent the opposite edge portions of said plates and extending inwardly to positions closeiy adjacent each other at the delivery end of the horns and providing channels for receiving the respective edge portions of said casing material, means for supplying 2. padding material between said horns, and means for drawing the casing material between said plates and through said horns and channels for folding the opposite edge Portions of the casing material inwardly to positions adjacent each other and in a manner to surround said padding material.

2. In a device for forming mattress borders, the combination of folding means for the casing material thereof comprising a pair of vertically spaced coextensive guide plates adapted to receive the casing material therebetween, oppositely disposed folding horns adjacent the opposite edge portions of said plates and extending inwardly to positions adjacent each other and adjacent the central longitudinal portion of the plates, said horns providing channels for receiving the respective edge portions of said casing material, means for supplying a padding material between said horns immediately above one of said guide plates, and means for drawing the casing material between said plates and through said horns and channels for folding the opposite edge portions of the casing material inwardly to positions adjacent each other and in a manner to surround said padding material! I 3. In a device for forming mattress borders, the combination of folding means for the casing material thereof, comprising a pair of vertically spaced guide plates of substantially uniform dimensions adapted to receive the casing material therebetween, oppositely disposed folding horns adjacent the opposite edge portions of the plates and extending inwardly to positions adjacent each other and providing channels for receiving the respective edge portions of said casing material, means for supplying a padding material between said horns immediately above theuppermost of said guide plates, and means for drawing the padding material between saidhorns and the casing material between said plates and through said horns and channels for folding the opposite edge portions of the casing material inwardly to positions adjacent each other for surrounding said padding material. 1

l. In a device for forming mattress borders, a guide, means supplying a padding strip thereto, a second guide spaced below said first guidameans for supplying a casing strip between said guides, cooperating means on said first and second guides to fold the edges of said casing strip into overlapping relation over said padding, said co-operating means holding the marginal edges of said operating means on said first and second guides to fold said casing strip over said padding, said cooperating means holding the marginal edges of said casing folded outwardly toward the edges of said padding, means supplying a covering strip to overlie the surface of said casing opposite said folded edges, and means securing said casing,

padding, and covering strip together.

6. In a device for forming mattress borders, a guide, means supplying a padding strip thereto, a second guide spaced from said first guide, means supplying a casing strip between said guides, means on said second guide curved to fold said casing strip over said padding, said casing strip being wider than said'second guide to provide unfolded marginal portions above said second guide, means supplying a strip of covering material to the surface of said casing opposite said folded marginal edges, and means securing said casing strip, padding, and covering strip together.

GILBERT OLSON.

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