US2642092A - Frame construction for weaving looms - Google Patents

Description

June 16, 1953 J. PICANOL 2,642,092

FRAME CONSTRUCTION FOR" WEAVING LOOMS Filed Sept. 27, 1951 2 Sheets-Sheet 1 lfllff/tfw? Jamze L a/wZ June 16, 1953 J. PIQANOL 2,642,092

FRAME CONSTRUCTION FOR WEAVING LOOMS Filed Sept. 27, 1951' 2 Sheets-Sheet 2 Fig.2

mm Ja nzefi a/zo ORA/5Y8 ,great as to require frames anism such as the cam and Patented June 16, 1953 a iaosz FRAME CONSTRUCTION FOR WEAVING LOOMS Jaime Picanol, Zandberg, Zillebeke-lez-Ypres,

Belgium Application September 27, 1951, Serial No. 248,616

In Belgium April 27, 1951 2 Claims (Cl. 1391) The present invention relates to weaving looms and, more particularly, frame structures for looms having no superstructure.

Being given the from modern looms, it happens that the stresses produced by mechanisms such as the dobby, pullback motion of the having a great lateral rigidity. Of course, this solved by simply using frames of large crosssection and size. This solution, however, is not acceptable in view of the increased weight of such frames and the resulting prohibitive cost.

The present invention has been conceived to avoid the drawbacks noted above in improved frames having a lateral rigidity amply adequate, without undue increase in weight, said frames having, furthermore, quite novel properties.

As a matter of fact, the essential function of a frame is to serve as a support for the various mechanisms cooperating together and, accordingly, it is rather original to conceive a frame having required rigidity and, at the same time, particular protection means, for at least one important mechanical unit, and the textile material against oil projections from the moving parts.

Thus, in a general manner, it has been the practice so far to dispose roller of the picking mechanism of loom frames. mechanism been rendered difiicultly accessible for maintenance but, concurrently, there has been introduced within the loom a-permanent cause of soiling for the cloth being woven. It is true that certain types of looms do have the picking mechanism outside the frame but, in any case, without any protection.

The main object of the invention, therefore, resides in the provision of a frame construction for weaving looms which provides for such frames a good lateral rigidity and, for the picking mechroller therefor, a housing protecting same in easily accessible position, while interposing therebetween and the textile material a veritable protecting screen, the advantages above to be obtainable at reasonable cost in relatively light frames.

on the inside high performance exacted problem can easily be the cam and the cam.

As a result, not only has this heddle and'others, are so l The objective above can be satisfied, according to the invention, by providing frames having on their inside face, relatively large ribs some of which offer the dual characteristic of being directed substantially in the direction of the main stresses acting on the frame, while extended or conformed so as to constitute at least a part of the lateral walls of a cavity, or housing, forming ing 12 and, on both sides of said opening,

the cam and roller,

an integral part of the frames. This cavity has a shape and dimensions such as to provide a complete individual housing in which are disposed as well as the journal of the picking shaft. Such frames are constituted of two lateral ends, or standards, joined by crossmembers and bars.

Obviously, the frames of the invention can be formed and dimensioned in an essentially variable manner in accordance with the type of loom considered. The ribs, and especially the wide ribs constituting the walls of mechanism housing can be, evidently, with the loom for which the frame is contem plated.

As an example, and for purposes of illustra tioh only, an embodiment of the invention is shown in the annexed drawings, in which:

Figure 1 is a perspective View of a frame shown in disassembled position but with the side standards and cross members shown in their relative positions, and

Figure 2 is a vertical section taken on line IIII of Figure 1, showing the parts protected inside the housing integral with the frame standards.

Referring to the drawings, wherein similar reference characters represent corresponding parts throughout, the reference number I indicates each side, or standard, of the complete frame, said standard formed of a plane web including on the inside thereof all the reenforcing ribs calculated to give it adequate rigidity. As shown, two such ribs 2-3 are so disposed and directed as to form also the side walls 4-5 of the house ing 6. Said housing has a form and dimensions appropriate to receiving together the cam l, the roller 8 and the bearing 9 of the picking shaft flu but, also, said ribs 4-5 are so oriented as to be directed'in the direction of the main stresses imparted to the frame. Thus can be met by the ribs 2- 5 and 3-5 the dual function of reenforcement and side walls of the housing.

This housing which has a depth substantially equal to the width of ribs 2-4 and 3-5 allows disposing the cam i and the roller 8 towards the outside of the frame, in a perfectly protected position, the inner wall H of the housing 6 providing a screen between the mechanical elements and the textile material (not shown) Accordingly, both cam and roller-are easily accessible without additional space-taking since they are lodged within the thickness of the frame.

The inner wall H of the housing 6' has an opentwo shaped and sized in conformityholes I 3l 4 for receiving bolts l6 securing a bushing l carrying the bearing 9 of the picking shaft i0. Thus, the means described enable obtaining, on the inner wall of the housing, a closure such that said inner wall is adapted to fill adequately its role of a screen for the textile material.

The invention is naturally adaptable to all forms of housings of which all, or certain only, of the lateral walls are defined by ribs co-operating to the lateral rigidity of frames and, more particularly, such ribs directed in the direction of the main stresses of said frames.

It must be understood also that various changes as to the shape, size and arrangement of parts may be resorted to without departing from the spirit of the invention, or the scope of the subjoined claims.

What I claim is:

1. In a frame for weaving looms, a housing having an inner wall facing on the inside of the loom, two main ribs directed internally and substantially oriented in the direction of the main stresses on the frame, secondary ribs also directed internally and cooperating with said two main ribs so as to define the lateral walls of said housing, a bushing on said inner wall for supporting a bearing for a picking shaft and serving also as a screen between the members inside the housing and the textile material on 4 the loom, one of the main ribs extending vertically downward from the top of the frame and thereafter, profiled to form at least one curve having its concavity directed'upwardly, the other main rib cooperating in the formation of the housing extending from the upper part of the first rib as an inclined stub extended by a'curved portion having its concavity directed down- Wardly, said two main ribs being connected to gether by said secondary ribs to define in a continuous manner the lateral wall of the housing. 2. In a frame as claimed in claim 1, a plane web joining together on the outside said main and secondary ribs, the depth of said housing being approximately close to the width of said ribs.

JAIME PICANO-L.

References Cited in the file of this patent UNITED STATES PATENTS

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