US20100012218A1 - Heddle frame with multi-directional adjustable brace - Google Patents
Heddle frame with multi-directional adjustable brace Download PDFInfo
- Publication number
- US20100012218A1 US20100012218A1 US12/295,399 US29539908A US2010012218A1 US 20100012218 A1 US20100012218 A1 US 20100012218A1 US 29539908 A US29539908 A US 29539908A US 2010012218 A1 US2010012218 A1 US 2010012218A1
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- United States
- Prior art keywords
- defining
- rail
- web
- intermediate brace
- top rail
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- D—TEXTILES; PAPER
- D03—WEAVING
- D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
- D03C9/00—Healds; Heald frames
- D03C9/06—Heald frames
- D03C9/0608—Construction of frame parts
- D03C9/0658—Intermediate supports or their connection to other frame parts
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
- D03C9/00—Healds; Heald frames
- D03C9/06—Heald frames
- D03C9/0608—Construction of frame parts
- D03C9/0616—Horizontal upper or lower rods
-
- D—TEXTILES; PAPER
- D03—WEAVING
- D03C—SHEDDING MECHANISMS; PATTERN CARDS OR CHAINS; PUNCHING OF CARDS; DESIGNING PATTERNS
- D03C9/00—Healds; Heald frames
- D03C9/06—Heald frames
- D03C9/0608—Construction of frame parts
- D03C9/0616—Horizontal upper or lower rods
- D03C9/0633—Heald bars or their connection to other frame parts
Definitions
- the present invention pertains to heddle frames for looms and in particular to heddle frames with adjustable intermediate braces for such heddle frames.
- FIG. 1 An arrangement whereby a single bolt 28 is threaded through both the top rail 14 and the bottom rail 16 is shown in FIG. 1 of commonly owned U.S. Pat. No. 5,560,399 to Kramer, which is hereby incorporated herein by this reference for all purposes.
- FIG. 1 Another arrangement with a center brace 28 having a center portion 29 extending between a top rail 14 and a bottom rail 16 of a heddle frame 10 is shown in commonly owned U.S. Pat. No. 5,630,448 to Faase, which is hereby incorporated herein by this reference for all purposes.
- An arrangement that is adjustable side-to-side is shown in FIG. 5 of commonly owned U.S. Pat. No.
- FIG. 1 is a rear plan view of an embodiment of the heddle frame of the present invention.
- FIG. 2A is a view taken from the back an embodiment of an intermediate brace with locking clamp blocks in accordance with the present invention and with features not ordinarily visible from this viewing perspective being shown in dashed line.
- FIG. 2B is a view taken from the side of the intermediate brace with locking clamp blocks shown in FIG. 2A .
- FIG. 3A is an expanded detailed rear plan view of a section of FIG. 1 within the balloon designated FIG. 3A in FIG. 1 and with features that ordinarily would be hidden from the viewer being shown in dashed line and a double-headed arrow schematically indicating direction of movement of certain components and with elements in chain dashed line to indicate that these elements ordinarily would not be visible in the plane of this view.
- FIG. 3B is a view shown partially in cross-section taken along the lines 3 B- 3 B indicated by the arrows in FIG. 3A with elements in chain dashed line to indicate that these elements ordinarily would not be visible in the plane in which the cross-section is taken of FIG. 3A .
- FIG. 4A is an elevated perspective view of a section of an embodiment of a top rail of a heddle frame and an embodiment of one end of an intermediate brace of the present invention with features that ordinarily would be hidden from view internally of the top rail being shown in dashed line and chain dashed line indicating the positioning of other elements when assembled and with portions cut away to reveal internal structure.
- FIG. 4B is an elevated perspective view of portions of alternative embodiments of an intermediate brace and a pin.
- FIG. 4C is an elevated perspective view of portions of a top rail and portions of an alternative embodiment of an intermediate brace and pin, with dashed lines showing structure that otherwise would be hidden from view and chain dashed lines showing a top section of the top rail for purposes of illustrating positioning of other components during assembly.
- FIG. 4D is an elevated perspective view of two separated sections of portions of an embodiment of a top rail with dashed lines showing structure that otherwise would not be visible and showing portions of other components, including a portion of an alternative embodiment of an intermediate brace and pin with the solid lines showing relative positioning of components of the pin.
- FIG. 4E is an elevated perspective view of two separated sections of portions of an embodiment of a top rail with dashed lines showing structure that otherwise would not be visible and showing portions of other components, including a portion of an alternative embodiment of an intermediate brace and pins with the solid lines showing relative positioning of components of the pin.
- FIG. 4F is an elevated perspective view of portions of an embodiment of a top rail with dashed line showing structure that otherwise would not be visible and showing portions of other components, including a portion of an intermediate brace and twin pins, with the solid lines showing relative positioning of components of the pin and a double headed arrow indicating the selectively permitted directions of movement of certain components.
- FIG. 1 A presently preferred embodiment of a heddle frame in accordance with the present invention is shown in FIG. 1 and is represented generally by the numeral 10 .
- a heddle frame 10 desirably includes a top rail 11 that extends longitudinally (widthwise across the paper) relative to frame 10 and defines opposed top rail ends 11 a , 11 b thereof.
- the heddle frame 10 also includes a bottom rail 12 that extends in the longitudinal direction and that extends generally parallel to the top rail 11 .
- the bottom rail 12 also defines opposed bottom rail ends 12 a , 12 b thereof.
- Alternative terminology for the top rail 11 and the bottom rail 12 is respectively the top profile and the bottom profile or the top crossbrace and bottom crossbrace.
- a first end member 13 a connects the first top rail end 11 a of the top rail 11 to the first bottom rail end 12 a of the bottom rail 12 .
- a second end member 13 b connects the second top rail end 11 b of the top rail 11 to the second bottom rail end 12 b of the bottom rail 12 .
- the top rail 11 , first end member 13 a , bottom rail 12 and second end member 13 b are connected so as to provide the heddle frame 10 formed thereby with a generally rectangular structure. Because the rails 11 , 12 and end members 13 a , 13 b typically are made from aluminum, the heddle frame 10 is sometimes called the aluminum profile 10 .
- an intermediate brace 15 extends between and connects the top rail 11 and the bottom rail 12 to assist in maintaining parallelism of the top and bottom rails and the overall rectangular shape of the heddle frame 10 .
- the heddle frame 10 carries a plurality of heddles 14 , the lengths of which extending vertically between the top rail 11 and the bottom rail 12 and thus generally transversely to the frame 10 .
- one end of each warp heddle 14 is slidably carried by a top heddle bar 19 that is mounted near one longitudinal edge of the top rail 11
- the opposite end of each warp heddle 14 is slidably carried by a bottom heddle bar 19 that is mounted near one longitudinal edge of the bottom rail 12 .
- FIG. 1 one end of each warp heddle 14 is slidably carried by a top heddle bar 19 that is mounted near one longitudinal edge of the top rail 11
- the opposite end of each warp heddle 14 is slidably carried by a bottom heddle bar 19 that is mounted near one longitudinal edge of the bottom rail 12 .
- each heddle bar 19 is disposed toward the back of the respective top rail 11 and bottom rail 12 , and the back of each rail 11 , 12 is disposed to face away from the reed when the heddle frame 10 is mounted in the loom (not shown).
- top rail 11 and the bottom rail 12 are configured identically. However, when a top rail 11 and a bottom rail 12 are connected to form a heddle frame 10 , they are oriented such that the top rail's longitudinal edge nearest the heddle bar 19 is facing toward the bottom rail's longitudinal edge nearest the heddle bar 19 . Thus, the heddle bar 19 of each rail 11 , 12 is oriented to face toward the interior of the heddle frame 10 . Accordingly, since the top rail 11 and the bottom rail 12 are configured identically, then for the sake of brevity, only the construction of an embodiment of a top rail 11 will be described in detail.
- FIG. 4A A section of an embodiment of a top rail 11 is shown in FIG. 4A for example.
- the top rail 11 defines a generally hollow extrusion 20 that has a largest dimension extending in the longitudinal direction (widthwise across the paper as shown in FIG. 1 for example).
- the hollow extrusion 20 forming the top rail 11 defines a top surface 20 a , and the top surface 20 a defines a larger dimension that extends in the longitudinal direction.
- FIG. 4A A section of an embodiment of a top rail 11 is shown in FIG. 4A for example.
- the top rail 11 defines a generally hollow extrusion 20 that has a largest dimension extending in the longitudinal direction (widthwise across the paper as shown in FIG. 1 for example).
- the hollow extrusion 20 forming the top rail 11 defines a top surface 20 a
- the top surface 20 a defines a larger dimension that extends in the longitudinal direction.
- the top surface 20 a defines a smaller dimension that extends in a horizontal direction, the horizontal direction being the direction that defines the thickness of the hollow extrusion 20 in a direction that is normal to the flat planar front surface 20 c and the flat planar rear surface 20 d of the top rail 11 .
- the smaller dimension defining the top surface 20 a is bounded between the front surface 20 c of the hollow extrusion 20 and the parallel rear surface 20 d of the hollow extrusion 20 .
- the horizontal direction is the direction that is normal to the longitudinal direction and normal to each of the front surface 20 c and rear surface 20 d of the top rail 11 .
- the hollow extrusion 20 that defines the top rail 11 also defines a front wall 21 that defines a smaller dimension that extends in a vertical direction from the front side of the top surface 20 a .
- the vertical direction is defined as being normal to the longitudinal direction and normal to the horizontal direction.
- the front wall 21 defines a larger dimension that extends in the longitudinal direction.
- the hollow extrusion 20 of the top rail 20 a is further defined by a rear wall 22 that is disposed generally parallel to the front wall 21 .
- the rear wall 22 defines a smaller dimension extending in the vertical direction from the rear side of the top surface 20 a .
- the rear wall 22 defines a larger dimension extending in the longitudinal direction and is equal in this larger dimension to the larger dimension of the front wall 21 of the top rail.
- the vertical dimension of the front wall 21 is larger than the vertical dimension of the rear wall 22 by virtue of the addition to the front wall 21 of a carrying flange 23 for the heddle bar 19 .
- the interior surface of the carrying flange 23 defines a projection bar 24 .
- the projection bar 24 extends in the horizontal direction from the rear surface of the front wall 21 near the bottom edge of the front wall 21 and toward the back wall 22 .
- a heddle bar 19 on which the heddles 14 are slideably mounted via the rod slots of the heddles 14 is connected to the rearwardly projecting surface of the projection bar 24 .
- the bottom surface 20 e of the top rail 11 overhangs the projection bar 24 and the heddle bar 19 .
- the hollow extrusion 20 that defines the top rail 11 defines a plurality of internal webs that are shaped and configured in much the same manner as the web 25 a that forms the top wall of top rail 11 and has an exterior surface defining the top surface 20 a of the top rail 11 .
- These internal webs 25 a , 25 b , 25 c , 25 d , 25 e extend in the horizontal direction between the front wall 21 and the rear wall 22 and desirably are symmetrically spaced apart from one another.
- These internal webs 25 a , 25 b , 25 c , 25 d , 25 e provide the top rail with strength and rigidity. Though five of these webs are shown in the embodiment illustrated in FIG.
- the bottom wall 25 e of the top rail 11 desirably is spaced relatively closer to the next adjacent internal web 25 d than is the space between the uppermost web that defines the top wall 25 a of the top rail 11 and the internal web 25 b closest to the top wall 25 a.
- each of the webs defining the top wall 25 a and each of the internal webs 25 b , 25 c , 25 d of the hollow extrusion 20 of the top rail 11 defines a respective through hole 26 a , 26 b , 26 c , 26 d that is vertically aligned along the desired location for the intermediate brace 15 .
- the alignment of each of these holes 26 a , 26 b , 26 c , 26 d with one another is shown schematically indicated in FIG. 4A for example by the chain dashed line designated 27 .
- the through holes 26 a , 26 b , 26 c , 26 d are configured to allow the passage therethrough of a top pin 35 (described hereafter).
- the passage of top pin 35 through the through holes 26 a , 26 b , 26 c , 26 d is also indicated schematically by the chain dashed line 27 .
- a first cut out portion 31 can be defined in a section of the top rail 11 .
- the first cut out portion 31 can be located in the immediate vicinity where the aligned through holes 26 a , 26 b , 26 c , 26 d are provided and extend longitudinally past each side of the boundary of the diameter of the aligned holes 26 a , 26 b , 26 c , 26 d by at least the distance of that diameter.
- This first cut out portion 31 can result in the removal of two identically shaped sections of the rear wall 22 and the front wall 21 that define the top rail 11 between the bottom wall 25 e and the internal web 25 d that is closest to the bottom wall 25 e of the top rail 11 .
- the first cut out portion 31 also is defined through and therefore eliminates a portion of the carrying flange 23 of the front wall 21 .
- the first cut out portion 31 need not remove any of the rear wall 22 and the front wall 21 and can just remove a portion of the bottom wall 25 e .
- one end of the entrance slot 17 and chamber 18 of the locking clamp block 16 shown in FIG. 4A can be closed off and thus blind in one end.
- a second cut out portion 32 can be defined in a second section of the top rail 11 .
- the second cut out portion 32 can be located in the immediate vicinity where the first cut out portion 31 is provided and can extend longitudinally to one side of the first cut out portion 31 .
- the second cut out portion 32 communicates in the longitudinal direction without interruption with the first cut out portion 31 .
- the second cut out portion 32 can result in the removal of two identically shaped sections of the rear wall 22 and the front wall 21 that define the top rail 11 between the bottom wall 25 e and the internal web 25 d that is closest to the bottom wall 25 e of the top rail 11 .
- the second cut out portion 32 also is defined through and therefore eliminates a portion of the carrying flange 23 of the front wall 21 .
- the second cut out portion 32 extends in the vertical direction through the rear wall 22 from the bottom wall 25 e up to the penultimate bottom internal web 25 d and through the front wall 21 completely through the carrying flange 23 of the front wall 21 and up to the penultimate bottom internal web 25 d .
- the first cut out portion 31 extends in the vertical direction through the rear wall 22 from the bottom wall 25 e and stops just short of the penultimate bottom internal web 25 d .
- the first cut out portion 31 extends through the front wall 21 completely through the carrying flange 23 of the front wall 21 and stops just short of the penultimate bottom internal web 25 d . Accordingly, as shown in FIG.
- a pair of opposed skirt flange portions 31 a are defined between the free edge 31 b of the first cut out portion 31 and the penultimate bottom internal web 25 d .
- the pair of opposed skirt flange portions 31 a and the penultimate bottom internal web 25 d define a groove 31 c therebetween.
- the first cut out portion 31 can be said to define a so-called shallow pocket 31
- the second cut out portion 32 disposed alongside the shallow pocket can be said to define a so-called deep pocket 32 .
- the shallow pocket 31 is disposed immediately, vertically beneath the portion of the top rail 11 in which the aligned through holes 26 a , 26 b , 26 c , 26 d are provided to receive the top pin 35 (described below).
- At least one intermediate brace 15 is configured to assist in maintaining parallelism of the top rail 11 and the bottom rail 12 .
- the intermediate brace 15 extends between and connects the top rail 11 and the bottom rail 12 .
- the intermediate brace 15 is disposed at a position between the end members 13 a , 13 b that connect the top and bottom rails 11 , 12 .
- that intermediate brace 15 can be centrally located between the end members 13 a , 13 b as shown in FIG. 1 for example.
- more than one intermediate brace 15 can be provided for a given heddle frame 10 , and more than one brace 15 desirably would be provided as the length (the left to right direction widthwise across the paper in FIG. 1 ) of the heddle frame 10 increases.
- each intermediate brace 15 defines a main body portion 15 a extending in the longitudinal direction of the brace 15 , which when assembled into the frame 10 is the direction that is parallel to the vertical or transverse direction of the frame 10 .
- each intermediate brace 15 carries at each opposite end thereof, a locking clamp block (generally designated 16 ) that is connected in a fixed manner to the intermediate brace 15 .
- a single piece of material (a steel blank for example) can be machined and formed into a unitary structure that defines the intermediate brace 15 and locking clamp blocks 16 at each opposite end.
- the locking clamp block 16 on one end of the intermediate brace 15 is configured to be connected to the top rail 11
- the locking clamp block 16 on the opposite end of the intermediate brace 15 is configured to be connected to the bottom rail 12 .
- the manner in which the intermediate brace 15 is connected to each of the top and bottom rails 11 , 12 desirably can involve the same kinds of components, and accordingly, for purposes of brevity, the following discussion will describe only the manner of connecting an intermediate brace 15 with the top rail 11 .
- the intermediate brace 15 defines a rigid elongated rod, which desirably is formed of stainless steel. However, the intermediate brace 15 can be formed of other materials that provide the same structural strength characteristics. As shown in FIGS. 2A and 2B , the main body portion 15 a of the intermediate brace 15 defines a relatively narrow rear edge 15 c . As shown in FIG. 2B , the main body portion 15 a defines a relatively narrow front edge 15 d and a pair of opposed, relatively wider side surfaces 15 e . The intermediate brace 15 defines on each opposite end thereof, a relatively flattened, thin-profiled paddle portion 15 b .
- Each paddle portion 15 b defines a relatively wide rear surface 15 f and front surface 15 g and relatively narrow side edges 15 h .
- the main body portion 15 a of the intermediate brace 15 extends generally to a transition portion 15 k that tapers from narrow to wide when moving in the direction away from the end of the main body portion 15 a and toward each respective paddle portion 15 b .
- the paddle portion 15 b of the intermediate brace 15 is disposed immediately adjacent the locking clamp block 15 where the locking clamp block 16 is attached to the intermediate brace 15 .
- a locking clamp block 16 is attached to one end of the intermediate brace 15 .
- the locking clamp block 16 has a front face 16 d that defines a recess 16 e therein.
- the distal free end of the paddle member 15 b is received in the recess 16 e that is formed in the front face 16 d of the locking clamp block 16 .
- the depth of this recess 16 e corresponds desirably to the thickness of the side edge 15 h of the paddle member 15 b that is inserted into the recess 16 e and fixed therein as by a means of permanent attachment such as welding for example.
- the means of attachment also can be selectively removable such as by a rivet or a threaded screw for example.
- the front surface 15 g of the paddle member 15 b lies in the same plane as the front face 16 d of the locking clamp block 16 to which the paddle member 15 b is attached.
- the locking clamp block 16 defines a first section 16 a that in turn defines an entrance slot 17 .
- the first section 16 a of the locking clamp block 16 defines a pair of opposed flanges 16 c .
- the interior-facing surfaces of the opposed flanges 16 c define the entrance slot 17 .
- the locking clamp block 16 further defines a second section 16 b that defines a chamber 18 internally of the second section 16 b of the locking clamp block 16 .
- the entrance slot 17 is configured to communicate directly with and be connected to the chamber 18 .
- the third section of the locking clamp block 16 defines the base 16 g of the locking clamp block 16 in which is formed the recess 16 e for receiving the paddle member 15 b of the intermediate brace 15 .
- a top pin 35 is defined by a rigid, elongated, narrow rod, which desirably is formed of stainless steel.
- the top pin 35 can be formed of other materials that provide the same structural strength characteristics.
- the top pin 35 can have a generally cylindrical exterior surface over substantially its entire length and can define a head portion 35 a on a first free end thereof.
- the free end of the head portion 35 a of the top pin 35 can include a flat surface 35 b that facilitates being able to grasp the pin 35 and rotate the pin about its lengthwise axis, also known as its longitudinal axis.
- the free end of the head portion 35 a of the top pin 35 can include dual, opposing flat surfaces 35 b (not shown).
- the top pin 35 can have a generally threaded exterior surface 35 c over the distal portion of the head portion 35 a of the top pin 35 .
- the keyed portion of the top pin and the entrance slot and chamber of the locking clamp block are configured in a complementary manner so that they are selectively, slideably disposable with respect to one another so as to selectively attach the top rail and the intermediate brace.
- the top pin 35 can further define a keyed portion 35 d on the end of the top pin 35 that is opposite the head portion 35 a .
- the keyed portion 35 d of the top pin 35 on the second end of the top pin 35 desirably can be configured to be selectively, securably received within the entrance slot 17 and the chamber 18 of the locking clamp block 16 .
- the keyed portion 35 d of the top pin 35 desirably can define a tip that is configured to be selectively slideably disposed in the chamber 18 of the slideably connected locking clamp block 16 (as shown in FIG. 2B for example) to which the top pin 35 is connected.
- the tip of the top pin 35 can be configured so that it is incapable of passing through the entrance slot 17 and must approach entry into the chamber 18 via one of the open end faces 16 f of the locking clamp block 16 .
- the chamber 18 of the locking clamp block 16 is accessible both from the entrance slot 17 in the top of the locking clamp block 16 and from each of the opposed ends 16 f of the locking clamp block 16 .
- top pin 35 it is possible to slideably connect the top pin 35 to the locking clamp block 16 and thus to the intermediate brace 15 that is connected to the locking clamp block 16 .
- tip of the keyed portion 35 d on one end of the top pin 35 that is configured so as to be slideably connectable to the locking clamp block 16 via the end openings in the slot 17 and chamber 18 that are defined in the first and second sections 16 a , 16 b of the locking clamp block 16 .
- the keyed portion 35 d of the top pin 35 can be configured with a disk 35 e on the tip, which is the distal-most end of the keyed portion 35 d of the top pin 35 .
- the keyed portion 35 d of the top pin 35 can be configured further with a pair of opposed flat surfaces 35 f between the disk 35 e and the main body of the top pin 35 .
- the pair of opposed flat surfaces 35 f are configured to fit into the slot 17
- the disk 35 e is configured to fit into the chamber 18 but not into the slot 17 of the locking clamp block 16 .
- the only way to connect the top pin 35 with the locking clamp block 16 is to position the keyed portion 35 d of top pin 35 into the chamber 18 and the slot 17 of the locking clamp block 16 .
- this connection or disconnection (as selected by the user) only can be accomplished by approaching the locking clamp block 16 from one of its end faces 16 f and sliding the keyed portion 35 d of top pin 35 in the longitudinal direction into the locking clamp block 16 so that the flat surfaces 35 f fit into the slot 17 and the disk 35 e fits into the chamber 18 .
- the locking clamp block 16 is selectively, slideably connectable with respect to the keyed portion 35 d of the top pin 35 in the longitudinal directions that are schematically indicated by the double ended arrow designated 42 in FIGS. 3A and 4A when the top pin 35 is disposed transversely through the interior of the top rail 11 for example. Since the disk 35 e is too big to pass through the slot 17 , when the keyed portion 35 d is held within the slot 17 and chamber 18 of the locking clamp block 16 , then it becomes impossible to disengage the locking clamp block 16 , and hence the intermediate brace 15 , from the top pin 35 by the exertion of forces in the vertical or transverse direction with respect to the heddle frame 10 .
- top rail 11 can be connected to the intermediate brace 15 in this fashion.
- a similar arrangement of the opposite end of the intermediate brace 15 and a bottom pin 45 that is configured like the top pin 35 effects the same connection between the intermediate brace 15 and the bottom rail 12 . Tightening the top pin 35 compresses the two rails 11 , 12 toward one another and thereby increases the stiffness of the aluminum profile 10 at the location of the intermediate brace 15 .
- Tightening the nut 37 on the head portion 35 a of the top pin 35 and/or the nut 47 on the counterpart bottom pin 45 creates a parallel condition of the heddle frame 10 that sets the vertical distance over the heddle bars 19 , and that vertical distance allows about a three millimeter clearance that is enough for the heddles 14 to run freely on the heddle bars 19 .
- increasing the stiffness of the heddle frame 10 can reduce the number of intermediate braces 15 that are needed along the length of the heddle frame 10 .
- the deep pocket 32 can extend from the bottommost edge of the front wall 21 of the top rail 11 to the penultimate bottom internal web 25 e of the top rail 11 .
- the difference in depth between the deep pocket 32 and the shallow pocket 31 is attributed to the skirt flange portions 31 a that extend vertically downwardly and away from the penultimate lower web 25 d .
- These two skirt flange portions 31 a and the penultimate lower web 25 d define a groove 31 c within which are received the flanges 16 c that define the slot 17 in the locking clamp block 16 that is to be connected to the keyed portion 35 d end of the top pin 35 . As shown in FIG.
- the exterior surfaces of the flanges 16 c of the locking clamp block 16 are configured to be received within the groove 31 c that is defined between the interior-facing surfaces of the skirt flange portions 31 a of the front wall 21 and the rear wall 22 that define the top rail 11 .
- the flanges 16 c of the locking clamp block 16 received within the groove 31 c act to prevent the locking clamp block 16 from twisting with respect to the top rail 11 .
- a sealing block 50 (only part is visible in the view shown) is received within the deep pocket 32 that is defined in the lower portion of the top rail 11 and can be secured therein by connecting the sealing block 50 to the top rail 11 .
- This connection can be accomplished in any of a number of ways.
- the sealing block 50 can include a removably securable fastener such as a threaded pin 50 a that threads into a threaded opening 50 b in the penultimate bottom internal web 25 d .
- the sealing block 50 prevents enough movement in the direction of the double-headed arrow 42 that would result in the escape of the tip of the keyed portion 35 d of the top pin 35 from within the chamber 18 defined in the second section 16 b of the locking clamp block 16 to which the top pin 35 was slideably connected.
- the sealing block 50 is removed from the deep pocket 32 , then as shown in FIG. 4A for example, the locking clamp block 16 of the intermediate brace 15 can be moved in the longitudinal direction 42 sufficiently clear of the skirt flange portions 31 a to release the tip of the keyed portion 35 d of the top pin 35 from within the chamber 18 defined in the locking clamp block 16 .
- the locking clamp block 16 and the attached intermediate brace 15 then can be removed from the assembled frame 10 once the keyed portions 35 d , 18 are disconnected from each other.
- the heddles 14 that are carried by the heddle frame 10 are free to move in the longitudinal direction 42 past the intermediate braces 15 . This is accomplished because of the manner of connecting the intermediate braces 15 to the top rail 11 and the bottom rail 12 as well as the configuration of the intermediate brace 15 and the location of the intermediate brace 15 in front of the heddle bar 19 .
- the transition region 15 k connects each paddle member 15 b on the end of each intermediate brace 15 with the main body portion 15 a of the intermediate brace 15 .
- the heddle 14 that is indicated by the chain-dashed line can move into and out of the paper and without such movement being impeded by virtue of the shape and position of the intermediate brace 15 .
- the ninety degree twist of the transition region 15 k of the intermediate brace 15 is shaped so that the intermediate brace 15 can be positioned in front of the heddle 14 rather than being alongside the heddle 14 . If the shape of the brace 15 were such that the brace 15 was positioned alongside the heddle 14 , then the brace 15 would prevent passage of the heddle 14 past the brace 15 .
- the heddles 14 that are illustrated by the chain-dashed lines can move to and fro in the directions of the double-headed arrow 42 without having such movement being impeded or blocked in any way by the position of the intermediate brace 15 .
- the present invention is particularly applicable for heddle frames that have so-called thin profiles.
- the relevant measurement that determines whether a frame is a thin profile frame is called the pitch.
- the pitch of a heddle frame is measured in the direction of the arrow beneath the legend TO REED in FIG. 3B .
- the pitch measurement is taken between the vertical centerlines of two heddle frames that are resting against one another as they would be placed in a loom.
- This pitch measurement also takes into account the fact that there would be nose guides in place during the measurement of the pitch, as nose guides would be used when the heddle frames are positioned in the looms in order to reduce frictional wearing of the profiles 11 , 12 .
- a nose guide design can be seen in commonly owned U.S. Pat. No.
- FIG. 1 of commonly owned U.S. Pat. No. 5,560,399.
- a typical heddle frame has a length (measured from left to right across the page in FIG. 1 ) of twelve to fourteen meters.
- the longer the thin profile frame the more braces are needed in order to ensure that the frame retains its rectangular shape.
- less space is available to accommodate the braces in a conventional arrangement.
- the relevant pitch measurement would be no more than about twenty millimeters.
- the present invention is configured to accommodate braces in thin profile frames.
- a pitch in the range of about of ten millimeters to about twelve millimeters is contemplated herein for frames with the benefit of braces in accordance with the present invention.
- the configuration of the bottom rail 12 is merely the mirror image of the configuration of the top rail 11 described above.
- the bottom rail 12 would be connected to the opposite end of the intermediate brace 15 via a bottom pin 45 that was similarly configured to the top pin 35 described above.
- differently configured locking clamp blocks 16 might be attached to each of the opposite ends of the intermediate brace 15 .
- the manner of connecting the respective second free end of each respective top pin 35 or bottom pin 45 would need to be configured in a complementary manner to interact with whatever configuration was presented by the locking clamp block to which the top or bottom connecting pin was to be connected.
- FIG. 4B illustrates an alternative embodiment of a locking clamp block 216 in accordance with the present invention.
- the locking clamp block 216 includes a base portion 216 a .
- Each one of a pair of outwardly extending wing portions 216 c is connected to an opposite end of the base portion 216 a .
- the wing portions 216 c and the base portion 216 a can be formed as a unitary structure or can be integrated from two separate elements that are mechanically connected together.
- a bridge member 216 d can be connected to each of the wing portions 216 c .
- a key hole-shaped slot 216 e can be defined through the bridge member 216 d above the chamber 216 b and is configured to receive therein a suitably configured tip defining a keyed portion 35 d of the second free end of the top pin 35 .
- the bridge member 216 d is removably securable to the locking clamp block 216 by bolts 216 f that can be passed through openings 216 g in the wing portions 216 c and threaded into threaded openings 216 h defined in the ends of the bridge member 216 d .
- the threaded openings 216 h in the bridge portion are aligned with non-threaded openings 216 g through the wing portions 216 c of the locking clamp block 216 .
- a detent 216 j that can be configured to be received within the groove 31 c that is formed between the skirt flange portions 31 a that define one boundary of the shallow pocket 31 defined in the lower portion of the top rail 11 .
- the detents 216 j received within the groove 31 c act to prevent the locking clamp block 216 from twisting with respect to the top rail 11 .
- This embodiment of the locking clamp block 216 can be used with a sealing block 50 and top pin 35 in much the same manner as the locking clamp block 16 described above.
- FIG. 4C Another alternative embodiment of the locking clamp block and associated brace and pin are shown in FIG. 4C , which in the interest of simplifying the view shown in FIG. 4C , does not show the heddles or the heddle bar 19 attached to the projection member 24 of the carrying flange 23 of the front wall 21 of the top rail 11 .
- the locking clamp block 316 embodiment shown in FIG. 4C is slideably attachable along the longitudinal directions indicated by the double-headed arrow 42 to the free end of the intermediate brace 315 .
- the FIG. 4C embodiment is similar to the FIG.
- the locking clamp block 316 defines a first section 316 a that in turn defines an entrance slot 317 .
- the locking clamp block 316 further defines a second section 316 b that defines a chamber 318 internally of the second section 316 b of the locking clamp block 316 .
- the paddle portion 15 b of the intermediate brace 315 is provided with a keyed portion 315 d that can be configured with an elongated hexahedron 315 e on the tip or distal-most end of the keyed portion 315 d of the intermediate brace 315 .
- the keyed portion 315 d of the intermediate brace 315 can be configured further with a pair of opposed flat surfaces 315 f between the hexahedron 315 e and the transition portion 15 k of the intermediate brace 315 .
- the pair of opposed flat surfaces 315 f are configured to fit into the slot 317
- the hexahedron 315 e is configured to fit into the chamber 318 but not into the slot 317 of the locking clamp block 316 .
- a pair of detents 316 j extend away from the upper surface of the base 316 g of the locking clamp block 316 and are configured to be received within the groove 31 c that is formed at the leading edge of the shallow pocket 31 formed in the lower portion of the top rail 11 .
- the detents 316 j are shown cylindrically shaped, but they also can be shaped as the detents 216 j that are shown in FIG. 4B for example.
- This embodiment of the locking clamp block 216 can be used with a sealing block 50 and top pin 35 in much the same manner as the locking clamp block 16 described above.
- the top pin 335 can have a generally cylindrical exterior surface over substantially its entire length and can define a head portion 335 a on a first free end thereof.
- the free end of the head portion 335 a of the top pin 335 can include a recess 335 b configured to receive a tool that facilitates being able to grasp the pin 335 and rotate the pin 335 about its lengthwise axis, also know as its longitudinal axis.
- the cross-section of the recess 335 b has a hexagonal shape, but other configurations can be provided for the free end of the head portion 335 a of the top pin 335 to accomplish the same purpose.
- FIG. 4C the cross-section of the recess 335 b has a hexagonal shape, but other configurations can be provided for the free end of the head portion 335 a of the top pin 335 to accomplish the same purpose.
- the top pin 335 can have a generally threaded exterior surface 335 c over the distal portion of the head portion 35 a .
- the head portion 335 a of the top pin 335 is anchored to the top rail 11 by a threaded nut 337 that engages the threaded exterior surface 335 c of the head portion 335 a .
- the second end of the top pin 335 is configured with a threaded tip 335 d that can be received by being screwed into a threaded opening 316 e disposed in the base 316 g of the locking clamp block 316 and connects the top rail 11 to the intermediate brace 15 in this fashion.
- FIG. 4D Another alternative embodiment of the locking clamp block is shown in FIG. 4D .
- the FIG. 4D embodiment of a locking clamp block 416 is similar to the embodiment shown in FIG. 4C except for the fact that the locking clamp block 416 is fixed to the free end of the intermediate brace 15 in much the same fashion as the embodiment shown in FIGS. 4A and 4B .
- the movement of the intermediate brace 15 in the longitudinal direction is effected by movement of the top pin 435 .
- the top web 25 a and the remaining intermediate webs such as the penultimate bottom internal web 25 d that connect the front wall 21 and the back wall 22 of the top rail 11 are provided with aligned elongated slots, e.g., elongated slot 426 d defined in the penultimate bottom internal web 25 d .
- aligned elongated slots e.g., elongated slot 426 d defined in the penultimate bottom internal web 25 d .
- Each of these slots elongates in the longitudinal direction, which is the direction in which it is desired to have the freedom to translate the position of the intermediate brace 15 .
- a reinforcement plate 436 is attached (as by threaded screws for example) to the web member 25 a that defines the top wall of the top rail 11 .
- the reinforcement plate 436 defines a slot 436 a that is aligned with the elongated opening that is formed in the top wall 25 a of the top rail 11 .
- a guide plate 437 having a detent 437 a that is slideably received in the slot 436 a in the reinforcing plate 436 is provided.
- the guide plate 437 defines a through hole 437 b that receives the shaft of the top pin 435 therethrough.
- the guide plate 437 is disposed between the head 435 b of the top pin 435 and the reinforcement plate 436 so that the head 435 b of the top pin 435 can engage the guide plate 437 , which acts as a washer to ensure a tight fit when the threaded distal end 435 d of the top pin 435 is screwed into the threaded opening 416 e that is formed in locking clamp block 416 .
- the view in FIG. 4D also does not show the heddle bar 19 or heddles 14 in order to avoid unnecessarily cluttering the view of the locking clamp block 416 embodiment shown in FIG. 4D .
- a pair of detents 416 j extend away from the upper surface of the base 416 g of the locking clamp block 416 and are configured to be received within the groove 31 c that is formed at the leading edge of the shallow pocket 31 formed in the lower portion of the top rail 11 .
- the detents 416 j are shown as elongated hexahedron shaped, but they also can be shaped as the detents 316 j that are shown in FIG. 4C for example.
- This embodiment of the locking clamp block 416 can be used with a sealing block 50 in much the same manner as the locking clamp block 16 described above.
- FIG. 4E Another alternative embodiment of the locking clamp block is shown in FIG. 4E .
- a locking clamp block 516 is similarly provided with elongated slots defined through the webs of the top rail 11 , a reinforcement plate 436 , and a guide plate 537 .
- the guide plate 537 defines a clearance hole 537 b through which a threaded exterior surface 535 c of the head portion of the top pin 535 can be passed and freely rotated.
- the embodiment of a chamber 518 of the locking clamp block 516 has a tongue-in-groove connection with a keyed portion 535 e at the tip of the top pin 535 at the second free end of the top pin 535 .
- the longitudinal translational motion occurs within the confines of the elongated slots that are defined in the internal webs of the top rail 11 , e.g., elongated slot 426 d defined in the penultimate bottom internal web 25 d .
- the first free end of the top pin 535 is provided with a threaded exterior surface 535 c to receive thereon a nut 37 that has mating threads.
- the line designated 43 schematically indicates the direction of travel of the plate 535 e forming the tip at the second free end of the top pin 535 into and out of the chamber 518 that is formed in the locking clamp block 516 .
- a pair of detents 516 j extend away from the upper surface of the locking clamp block 516 and are configured to be received within the groove 31 c that is formed at the leading edge of the shallow pocket 31 formed in the lower portion of the top rail 11 .
- the detents 516 j are shown as elongated hexahedron shaped, but they also can be shaped as the detents 316 j that are shown in FIG. 4C for example.
- This embodiment of the locking clamp block 516 can be used with a sealing block 50 in much the same manner as the locking clamp block 16 described above.
- FIG. 4F Another alternative embodiment of the locking clamp block is illustrated in FIG. 4F .
- a locking clamp block 616 defines a first flat, narrow plate 616 a and a second connector plate 616 d .
- the first flat, narrow plate 616 a is fixed (as by being welded) to the extreme free edge of the paddle portion 15 b of the intermediate brace 15 .
- Near each of the opposed end portions of this top plate 616 a is defined an elongated slot 616 b that elongates in the longitudinal direction that is indicated by the double-headed arrow 42 shown in FIG. 4F .
- each of a pair of top pins 635 , 635 is disposed through aligned circular openings that are defined in the internal webs of the top rail 11 in much the same way that top pin 35 passes through the through holes 26 a , 26 b , 26 c and 26 d in each respective top wall 25 a and internal web 25 b , 25 c and 25 d in the embodiment shown in FIG. 4A .
- Neither of the top pins 635 , 635 is free to move in the longitudinal direction by the circular openings in the internal webs of the top rail 11 . Though not shown in this view of FIG.
- each of the twin top pins 635 , 635 can be connected to the top rail 11 in much the same fashion as either pin 35 is connected as shown in FIG. 4A or as pin 335 is connected as shown in FIG. 4C .
- each of the twin top pins 635 , 635 is provided with a threaded tip 635 d that is screwed into a separate threaded opening 616 e that is defined in the second flat connector plate 616 d .
- the bottom connector plate 616 d has a recess 616 c with a depth sufficient to receive therein the paddle member 15 b .
- Each of the twin top pins 635 is threaded into a respective one of the threaded openings 616 e in this bottom connector plate 616 d .
- the recess 616 c in this bottom connector plate 616 d is longer in the longitudinal direction than the width of the paddle portion 15 b of the intermediate brace 15 is wide in the same longitudinal direction.
- This relatively larger sizing of the recess 616 c permits movement of the intermediate brace 15 with respect to the twin pins 635 to a certain extent to either side in the longitudinal direction indicated by the double-headed arrow 42 when the twin pins 635 are threaded into the bottom connector plate 616 d .
- the FIG. 4F embodiment only requires a single deep pocket 32 in the lower portion of the top rail 11 and thus eliminates the need for a deep pocket and a shallow pocket in this lower portion of the top rail 31 in order to accommodate this embodiment of the intermediate brace 15 .
Abstract
A heddle frame for supporting a plurality of heddles comprises a top rail separate from a bottom rail Each of the rails defines a front wall and a rear wall opposed to the front wall A carrying flange extends from the front wall of the top rail and toward the bottom rail Each of the rails carries a heddle bar disposed toward the back of the respective rail, and the top heddle bar is connected to the carrying flange The top rail defines a first cut out portion extending through a section of the carrying flange The heddle frame further includes at least one intermediate brace extending between the top rail and the bottom rail at a position aligned with the first cut out portion and configured for assisting in maintaining parallelism of the top and bottom rails.
Description
- N/A
- N/A
- The present invention pertains to heddle frames for looms and in particular to heddle frames with adjustable intermediate braces for such heddle frames.
- Intermediate braces for heddle frames are known. U.S. Pat. No. 4,349,052 to Yaji discloses a
frame structure 10 with anintermediate stay 21 that is attached to theupper frame stave 12 by a threaded bolt 75 and nut 73 arrangement and attached to the bottom crosspiece by a connector bar 77 (FIGS. 12 and 13) fitting into a connector groove 80 on opposite sides of a hole 79. In this way, theintermediate stay 21 can be secured to the upper frame stave 12 via the threaded bolt 75, thereby avoiding the need for the person maintaining the frame to have access to the lower frame stave 13. This is advantageous because beneath theframes 10 in these types of looms there typically is trash as well as moving mechanical mechanisms that make it difficult for a person maintaining theframe 10 to access the lower frame stave 13 for purposes of turning a threaded bolt for example as is required from theupper frame stave 12 such as shown in FIG. 11. - An arrangement whereby a single bolt 28 is threaded through both the
top rail 14 and thebottom rail 16 is shown in FIG. 1 of commonly owned U.S. Pat. No. 5,560,399 to Kramer, which is hereby incorporated herein by this reference for all purposes. Another arrangement with a center brace 28 having a center portion 29 extending between atop rail 14 and abottom rail 16 of aheddle frame 10 is shown in commonly owned U.S. Pat. No. 5,630,448 to Faase, which is hereby incorporated herein by this reference for all purposes. An arrangement that is adjustable side-to-side is shown in FIG. 5 of commonly owned U.S. Pat. No. 5,975,147 to King et al, which is hereby incorporated herein by this reference for all purposes. The side-to-side movement is accommodated by providing elongated slots 66, 68 through rigid intermediate walls 88, 90 of thetop rail 14. Commonly owned U.S. Pat. No. 4,924,916 to Faase et al, which is hereby incorporated herein by this reference for all purposes, describes aheddle frame 10 with a drop-through boltedcenter brace 20 that may be located in alternative positions within the heddle frame. - Published U.S. Patent Application No. 2006/0090809 to Fumex discloses a heddle frame 2 with a plurality of
intermediate braces 10 disposed between the cross-rails 4 and 4′ and arranged to clamp on opposite sides of theprojections 45 and 46 on the inside faces of thepartitions rod 11 of theintermediate brace 10. Additionally, the side-to-side adjustability of theintermediate braces 10 requires machining of the internal webs 49 (FIGS. 2 and 3), which requires additional machining operations, the result of which tends to increase the cost of manufacture and weaken the structural integrity of the cross-rails 4, 4′. - It is an object of the present invention to provide a heddle frame for supporting a plurality of heddles, comprising one or more intermediate braces wherein each intermediate brace is configured to permit the heddles (without yarn) to be moved past each installed intermediate brace.
- It is another object of the present invention to provide a heddle frame for supporting a plurality of heddles, comprising one or more intermediate braces wherein each intermediate brace is configured to be infinitely adjustable from left to right within the length of the locking clamp block of the intermediate brace.
- It is a further object of the present invention to provide a heddle frame for supporting a plurality of heddles, comprising one or more intermediate braces wherein each intermediate brace is configured with an integral key that functions to retain the desired alignment of the intermediate brace and prevents turning of the intermediate brace.
- It is an additional object of the present invention to provide a heddle frame for supporting a plurality of heddles, comprising a pair of opposed profiles, one or more intermediate braces installed between the profiles, a pocket cutout defined in at least one of the profiles and a selectively removable stop block wherein such configuration makes it convenient to install an intermediate brace in the heddle frame and/or retain an intermediate brace in the heddle frame and/or position an intermediate brace in the heddle frame and/or remove an intermediate brace in the heddle frame.
- It also is an object of the present invention to provide a heddle frame for supporting a plurality of heddles, comprising a pair of opposed profiles and one or more intermediate braces installed between the profiles, wherein the manufacturing costs are less because they are configured without elongated bolt holes for securing each intermediate brace in a manner that renders such brace moveable left to right within the heddle frame.
- These objects and additional objects and advantages of the invention will be set forth in part in the description that follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objects and advantages of the invention may be realized and attained by means of the instrumentalities and combinations described herein both in text and/or drawings and/or particularly pointed out in the appended claims.
- The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate at least one presently preferred embodiment of the invention as well as some alternative embodiments. These drawings, together with the description, serve to explain the principles of the invention but by no means are intended to be exhaustive of all of the possible manifestations of the invention.
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FIG. 1 is a rear plan view of an embodiment of the heddle frame of the present invention. -
FIG. 2A is a view taken from the back an embodiment of an intermediate brace with locking clamp blocks in accordance with the present invention and with features not ordinarily visible from this viewing perspective being shown in dashed line. -
FIG. 2B is a view taken from the side of the intermediate brace with locking clamp blocks shown inFIG. 2A . -
FIG. 3A is an expanded detailed rear plan view of a section ofFIG. 1 within the balloon designatedFIG. 3A inFIG. 1 and with features that ordinarily would be hidden from the viewer being shown in dashed line and a double-headed arrow schematically indicating direction of movement of certain components and with elements in chain dashed line to indicate that these elements ordinarily would not be visible in the plane of this view. -
FIG. 3B is a view shown partially in cross-section taken along thelines 3B-3B indicated by the arrows inFIG. 3A with elements in chain dashed line to indicate that these elements ordinarily would not be visible in the plane in which the cross-section is taken ofFIG. 3A . -
FIG. 4A is an elevated perspective view of a section of an embodiment of a top rail of a heddle frame and an embodiment of one end of an intermediate brace of the present invention with features that ordinarily would be hidden from view internally of the top rail being shown in dashed line and chain dashed line indicating the positioning of other elements when assembled and with portions cut away to reveal internal structure. -
FIG. 4B is an elevated perspective view of portions of alternative embodiments of an intermediate brace and a pin. -
FIG. 4C is an elevated perspective view of portions of a top rail and portions of an alternative embodiment of an intermediate brace and pin, with dashed lines showing structure that otherwise would be hidden from view and chain dashed lines showing a top section of the top rail for purposes of illustrating positioning of other components during assembly. -
FIG. 4D is an elevated perspective view of two separated sections of portions of an embodiment of a top rail with dashed lines showing structure that otherwise would not be visible and showing portions of other components, including a portion of an alternative embodiment of an intermediate brace and pin with the solid lines showing relative positioning of components of the pin. -
FIG. 4E is an elevated perspective view of two separated sections of portions of an embodiment of a top rail with dashed lines showing structure that otherwise would not be visible and showing portions of other components, including a portion of an alternative embodiment of an intermediate brace and pins with the solid lines showing relative positioning of components of the pin. -
FIG. 4F is an elevated perspective view of portions of an embodiment of a top rail with dashed line showing structure that otherwise would not be visible and showing portions of other components, including a portion of an intermediate brace and twin pins, with the solid lines showing relative positioning of components of the pin and a double headed arrow indicating the selectively permitted directions of movement of certain components. - Reference now will be made in detail to the presently preferred embodiments of the invention, several examples of which being illustrated in the accompanying drawings. Each example is provided by way of explanation of the invention, which is not restricted to the specifics of the examples. In fact, it will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the scope or spirit of the invention. For instance, features illustrated or described as part of one embodiment, can be used on another embodiment to yield a still further embodiment. Thus, it is intended that the present invention cover such modifications and variations as come within the scope of the appended claims and their equivalents. The same numerals are assigned to the same components throughout the drawings and description.
- A presently preferred embodiment of a heddle frame in accordance with the present invention is shown in
FIG. 1 and is represented generally by the numeral 10. - As schematically shown in
FIG. 1 , aheddle frame 10 desirably includes atop rail 11 that extends longitudinally (widthwise across the paper) relative to frame 10 and defines opposed top rail ends 11 a, 11 b thereof. Similarly, theheddle frame 10 also includes abottom rail 12 that extends in the longitudinal direction and that extends generally parallel to thetop rail 11. Thebottom rail 12 also defines opposed bottom rail ends 12 a, 12 b thereof. Alternative terminology for thetop rail 11 and thebottom rail 12 is respectively the top profile and the bottom profile or the top crossbrace and bottom crossbrace. - As shown in
FIG. 1 , afirst end member 13 a connects the firsttop rail end 11 a of thetop rail 11 to the firstbottom rail end 12 a of thebottom rail 12. Similarly, asecond end member 13 b connects the secondtop rail end 11 b of thetop rail 11 to the secondbottom rail end 12 b of thebottom rail 12. Thetop rail 11,first end member 13 a,bottom rail 12 andsecond end member 13 b are connected so as to provide theheddle frame 10 formed thereby with a generally rectangular structure. Because therails end members heddle frame 10 is sometimes called thealuminum profile 10. Moreover, as shown inFIG. 1 , anintermediate brace 15 extends between and connects thetop rail 11 and thebottom rail 12 to assist in maintaining parallelism of the top and bottom rails and the overall rectangular shape of theheddle frame 10. - The
heddle frame 10 carries a plurality ofheddles 14, the lengths of which extending vertically between thetop rail 11 and thebottom rail 12 and thus generally transversely to theframe 10. As shown inFIG. 1 , one end of eachwarp heddle 14 is slidably carried by atop heddle bar 19 that is mounted near one longitudinal edge of thetop rail 11, while the opposite end of eachwarp heddle 14 is slidably carried by abottom heddle bar 19 that is mounted near one longitudinal edge of thebottom rail 12. As shown inFIG. 3B for example, eachheddle bar 19 is disposed toward the back of the respectivetop rail 11 andbottom rail 12, and the back of eachrail heddle frame 10 is mounted in the loom (not shown). - In the illustrative embodiment discussed herein, for purposes of simplifying the discussion, it is assumed that the
top rail 11 and thebottom rail 12 are configured identically. However, when atop rail 11 and abottom rail 12 are connected to form aheddle frame 10, they are oriented such that the top rail's longitudinal edge nearest theheddle bar 19 is facing toward the bottom rail's longitudinal edge nearest theheddle bar 19. Thus, theheddle bar 19 of eachrail heddle frame 10. Accordingly, since thetop rail 11 and thebottom rail 12 are configured identically, then for the sake of brevity, only the construction of an embodiment of atop rail 11 will be described in detail. - A section of an embodiment of a
top rail 11 is shown inFIG. 4A for example. As shown therein, thetop rail 11 defines a generallyhollow extrusion 20 that has a largest dimension extending in the longitudinal direction (widthwise across the paper as shown inFIG. 1 for example). As shown inFIG. 4A , thehollow extrusion 20 forming thetop rail 11 defines atop surface 20 a, and thetop surface 20 a defines a larger dimension that extends in the longitudinal direction. As shown inFIG. 4A , thetop surface 20 a defines a smaller dimension that extends in a horizontal direction, the horizontal direction being the direction that defines the thickness of thehollow extrusion 20 in a direction that is normal to the flat planarfront surface 20 c and the flat planarrear surface 20 d of thetop rail 11. As shown inFIG. 4A , the smaller dimension defining thetop surface 20 a is bounded between thefront surface 20 c of thehollow extrusion 20 and the parallelrear surface 20 d of thehollow extrusion 20. Thus, in the embodiment shown inFIG. 4A , the horizontal direction is the direction that is normal to the longitudinal direction and normal to each of thefront surface 20 c andrear surface 20 d of thetop rail 11. - As shown in
FIG. 4A for example, thehollow extrusion 20 that defines thetop rail 11 also defines afront wall 21 that defines a smaller dimension that extends in a vertical direction from the front side of thetop surface 20 a. The vertical direction is defined as being normal to the longitudinal direction and normal to the horizontal direction. Thefront wall 21 defines a larger dimension that extends in the longitudinal direction. - As shown in
FIG. 4A for example, thehollow extrusion 20 of thetop rail 20 a is further defined by arear wall 22 that is disposed generally parallel to thefront wall 21. Therear wall 22 defines a smaller dimension extending in the vertical direction from the rear side of thetop surface 20 a. Therear wall 22 defines a larger dimension extending in the longitudinal direction and is equal in this larger dimension to the larger dimension of thefront wall 21 of the top rail. In the embodiment shown inFIG. 4A , the vertical dimension of thefront wall 21 is larger than the vertical dimension of therear wall 22 by virtue of the addition to thefront wall 21 of a carryingflange 23 for theheddle bar 19. - In the embodiment shown in
FIG. 4A , the interior surface of the carryingflange 23 defines aprojection bar 24. As shown inFIG. 4A , theprojection bar 24 extends in the horizontal direction from the rear surface of thefront wall 21 near the bottom edge of thefront wall 21 and toward theback wall 22. Aheddle bar 19 on which theheddles 14 are slideably mounted via the rod slots of theheddles 14 is connected to the rearwardly projecting surface of theprojection bar 24. As perhaps best shown inFIG. 3B , thebottom surface 20 e of thetop rail 11 overhangs theprojection bar 24 and theheddle bar 19. - In the embodiment shown in
FIG. 4A , thehollow extrusion 20 that defines thetop rail 11 defines a plurality of internal webs that are shaped and configured in much the same manner as theweb 25 a that forms the top wall oftop rail 11 and has an exterior surface defining thetop surface 20 a of thetop rail 11. Theseinternal webs front wall 21 and therear wall 22 and desirably are symmetrically spaced apart from one another. Theseinternal webs FIG. 4A , more or fewer webs can be provided according to the size of the rail, the material forming the rail, and the type of heddle frame. However, thebottom wall 25 e of thetop rail 11 desirably is spaced relatively closer to the next adjacentinternal web 25 d than is the space between the uppermost web that defines thetop wall 25 a of thetop rail 11 and theinternal web 25 b closest to thetop wall 25 a. - As shown in
FIG. 4A , each of the webs defining thetop wall 25 a and each of theinternal webs hollow extrusion 20 of thetop rail 11 defines a respective throughhole intermediate brace 15. The alignment of each of theseholes FIG. 4A for example by the chain dashed line designated 27. The through holes 26 a, 26 b, 26 c, 26 d are configured to allow the passage therethrough of a top pin 35 (described hereafter). The passage oftop pin 35 through the throughholes line 27. - As shown in
FIG. 4A , a first cut outportion 31 can be defined in a section of thetop rail 11. The first cut outportion 31 can be located in the immediate vicinity where the aligned throughholes holes portion 31 can result in the removal of two identically shaped sections of therear wall 22 and thefront wall 21 that define thetop rail 11 between thebottom wall 25 e and theinternal web 25 d that is closest to thebottom wall 25 e of thetop rail 11. The first cut outportion 31 also is defined through and therefore eliminates a portion of the carryingflange 23 of thefront wall 21. Alternatively, the first cut outportion 31 need not remove any of therear wall 22 and thefront wall 21 and can just remove a portion of thebottom wall 25 e. In such alternative configuration, one end of theentrance slot 17 andchamber 18 of the lockingclamp block 16 shown inFIG. 4A can be closed off and thus blind in one end. - In the embodiment shown in
FIG. 4A , a second cut outportion 32 can be defined in a second section of thetop rail 11. The second cut outportion 32 can be located in the immediate vicinity where the first cut outportion 31 is provided and can extend longitudinally to one side of the first cut outportion 31. As shown in the embodiment illustrated inFIG. 4A for example, the second cut outportion 32 communicates in the longitudinal direction without interruption with the first cut outportion 31. The second cut outportion 32 can result in the removal of two identically shaped sections of therear wall 22 and thefront wall 21 that define thetop rail 11 between thebottom wall 25 e and theinternal web 25 d that is closest to thebottom wall 25 e of thetop rail 11. Another name for theinternal web 25 d closest to thebottom wall 25 e of thetop rail 11 is the penultimate bottominternal web 25 d. The second cut outportion 32 also is defined through and therefore eliminates a portion of the carryingflange 23 of thefront wall 21. - In the embodiment shown in
FIG. 4A , the second cut outportion 32 extends in the vertical direction through therear wall 22 from thebottom wall 25 e up to the penultimate bottominternal web 25 d and through thefront wall 21 completely through the carryingflange 23 of thefront wall 21 and up to the penultimate bottominternal web 25 d. However, the first cut outportion 31 extends in the vertical direction through therear wall 22 from thebottom wall 25 e and stops just short of the penultimate bottominternal web 25 d. The first cut outportion 31 extends through thefront wall 21 completely through the carryingflange 23 of thefront wall 21 and stops just short of the penultimate bottominternal web 25 d. Accordingly, as shown inFIG. 3B for example, a pair of opposedskirt flange portions 31 a are defined between thefree edge 31 b of the first cut outportion 31 and the penultimate bottominternal web 25 d. As shown inFIG. 3B , the pair of opposedskirt flange portions 31 a and the penultimate bottominternal web 25 d define agroove 31 c therebetween. - When considering the relative distances in the vertical direction in the
front wall 21 and therear wall 22 by which the first cut outportion 31 stops short of reaching the penultimate bottominternal web 25 d, the first cut outportion 31 can be said to define a so-calledshallow pocket 31, and the second cut outportion 32 disposed alongside the shallow pocket can be said to define a so-calleddeep pocket 32. In the embodiment shown inFIG. 4A , theshallow pocket 31 is disposed immediately, vertically beneath the portion of thetop rail 11 in which the aligned throughholes - In accordance with the present invention, at least one
intermediate brace 15 is configured to assist in maintaining parallelism of thetop rail 11 and thebottom rail 12. As shown inFIG. 1 , theintermediate brace 15 extends between and connects thetop rail 11 and thebottom rail 12. Moreover, theintermediate brace 15 is disposed at a position between theend members bottom rails intermediate brace 15 is provided, desirably thatintermediate brace 15 can be centrally located between theend members FIG. 1 for example. However, more than oneintermediate brace 15 can be provided for a givenheddle frame 10, and more than onebrace 15 desirably would be provided as the length (the left to right direction widthwise across the paper inFIG. 1 ) of theheddle frame 10 increases. - As shown in
FIGS. 2A and 2B for example, eachintermediate brace 15 defines amain body portion 15 a extending in the longitudinal direction of thebrace 15, which when assembled into theframe 10 is the direction that is parallel to the vertical or transverse direction of theframe 10. As shown inFIGS. 2A and 2B for example, eachintermediate brace 15 carries at each opposite end thereof, a locking clamp block (generally designated 16) that is connected in a fixed manner to theintermediate brace 15. Alternatively, a single piece of material (a steel blank for example) can be machined and formed into a unitary structure that defines theintermediate brace 15 and locking clamp blocks 16 at each opposite end. - The locking
clamp block 16 on one end of theintermediate brace 15 is configured to be connected to thetop rail 11, while the lockingclamp block 16 on the opposite end of theintermediate brace 15 is configured to be connected to thebottom rail 12. The manner in which theintermediate brace 15 is connected to each of the top andbottom rails intermediate brace 15 with thetop rail 11. - As shown in
FIGS. 2A and 2B , theintermediate brace 15 defines a rigid elongated rod, which desirably is formed of stainless steel. However, theintermediate brace 15 can be formed of other materials that provide the same structural strength characteristics. As shown inFIGS. 2A and 2B , themain body portion 15 a of theintermediate brace 15 defines a relatively narrowrear edge 15 c. As shown inFIG. 2B , themain body portion 15 a defines a relatively narrowfront edge 15 d and a pair of opposed, relatively wider side surfaces 15 e. Theintermediate brace 15 defines on each opposite end thereof, a relatively flattened, thin-profiledpaddle portion 15 b. Eachpaddle portion 15 b defines a relatively widerear surface 15 f andfront surface 15 g and relatively narrow side edges 15 h. Themain body portion 15 a of theintermediate brace 15 extends generally to atransition portion 15 k that tapers from narrow to wide when moving in the direction away from the end of themain body portion 15 a and toward eachrespective paddle portion 15 b. As shown inFIGS. 2A and 2B , thepaddle portion 15 b of theintermediate brace 15 is disposed immediately adjacent the lockingclamp block 15 where the lockingclamp block 16 is attached to theintermediate brace 15. - As shown in
FIGS. 2A , 2B and 3B for example, a lockingclamp block 16 is attached to one end of theintermediate brace 15. As shown inFIG. 2B for example, the lockingclamp block 16 has afront face 16 d that defines arecess 16 e therein. As shown inFIGS. 2A and 2B for example, the distal free end of thepaddle member 15 b is received in therecess 16 e that is formed in thefront face 16 d of the lockingclamp block 16. As shown inFIG. 2B for example, the depth of thisrecess 16 e corresponds desirably to the thickness of theside edge 15 h of thepaddle member 15 b that is inserted into therecess 16 e and fixed therein as by a means of permanent attachment such as welding for example. The means of attachment also can be selectively removable such as by a rivet or a threaded screw for example. Desirably, as shown inFIG. 2B , thefront surface 15 g of thepaddle member 15 b lies in the same plane as thefront face 16 d of the lockingclamp block 16 to which thepaddle member 15 b is attached. - As shown in
FIGS. 2A , 2B and 3B for example, the lockingclamp block 16 defines afirst section 16 a that in turn defines anentrance slot 17. As shown inFIGS. 2A and 2B , thefirst section 16 a of the lockingclamp block 16 defines a pair ofopposed flanges 16 c. The interior-facing surfaces of theopposed flanges 16 c define theentrance slot 17. The lockingclamp block 16 further defines asecond section 16 b that defines achamber 18 internally of thesecond section 16 b of the lockingclamp block 16. Theentrance slot 17 is configured to communicate directly with and be connected to thechamber 18. As shown inFIGS. 2A and 2B , the third section of the lockingclamp block 16 defines the base 16 g of the lockingclamp block 16 in which is formed therecess 16 e for receiving thepaddle member 15 b of theintermediate brace 15. - As shown in
FIG. 4A for example, atop pin 35 is defined by a rigid, elongated, narrow rod, which desirably is formed of stainless steel. However, thetop pin 35 can be formed of other materials that provide the same structural strength characteristics. As in the embodiment that is shown inFIG. 4A , thetop pin 35 can have a generally cylindrical exterior surface over substantially its entire length and can define ahead portion 35 a on a first free end thereof. The free end of thehead portion 35 a of thetop pin 35 can include aflat surface 35 b that facilitates being able to grasp thepin 35 and rotate the pin about its lengthwise axis, also known as its longitudinal axis. Other configurations can be provided for the free end of thehead portion 35 a of thetop pin 35 to accomplish the same purpose. For example, the free end of thehead portion 35 a of thetop pin 35 can include dual, opposingflat surfaces 35 b (not shown). As in the embodiment that is shown inFIG. 4A , thetop pin 35 can have a generally threadedexterior surface 35 c over the distal portion of thehead portion 35 a of thetop pin 35. - In accordance with an aspect of the present invention, the keyed portion of the top pin and the entrance slot and chamber of the locking clamp block are configured in a complementary manner so that they are selectively, slideably disposable with respect to one another so as to selectively attach the top rail and the intermediate brace. As shown in
FIG. 4A , thetop pin 35 can further define a keyedportion 35 d on the end of thetop pin 35 that is opposite thehead portion 35 a. As shown inFIG. 4A , the keyedportion 35 d of thetop pin 35 on the second end of thetop pin 35 desirably can be configured to be selectively, securably received within theentrance slot 17 and thechamber 18 of the lockingclamp block 16. - As shown in
FIG. 4A for example, the keyedportion 35 d of thetop pin 35 desirably can define a tip that is configured to be selectively slideably disposed in thechamber 18 of the slideably connected locking clamp block 16 (as shown inFIG. 2B for example) to which thetop pin 35 is connected. Moreover, the tip of thetop pin 35 can be configured so that it is incapable of passing through theentrance slot 17 and must approach entry into thechamber 18 via one of the open end faces 16 f of the lockingclamp block 16. Thus, thechamber 18 of the lockingclamp block 16 is accessible both from theentrance slot 17 in the top of the lockingclamp block 16 and from each of the opposed ends 16 f of the lockingclamp block 16. In this way, it is possible to slideably connect thetop pin 35 to the lockingclamp block 16 and thus to theintermediate brace 15 that is connected to the lockingclamp block 16. In particular, it is the tip of the keyedportion 35 d on one end of thetop pin 35 that is configured so as to be slideably connectable to the lockingclamp block 16 via the end openings in theslot 17 andchamber 18 that are defined in the first andsecond sections clamp block 16. - In the embodiment shown in
FIG. 4A , the keyedportion 35 d of thetop pin 35 can be configured with adisk 35 e on the tip, which is the distal-most end of the keyedportion 35 d of thetop pin 35. The keyedportion 35 d of thetop pin 35 can be configured further with a pair of opposedflat surfaces 35 f between thedisk 35 e and the main body of thetop pin 35. The pair of opposedflat surfaces 35 f are configured to fit into theslot 17, and thedisk 35 e is configured to fit into thechamber 18 but not into theslot 17 of the lockingclamp block 16. Thus, the only way to connect thetop pin 35 with the lockingclamp block 16 is to position the keyedportion 35 d oftop pin 35 into thechamber 18 and theslot 17 of the lockingclamp block 16. However, this connection or disconnection (as selected by the user) only can be accomplished by approaching the lockingclamp block 16 from one of its end faces 16 f and sliding the keyedportion 35 d oftop pin 35 in the longitudinal direction into the lockingclamp block 16 so that theflat surfaces 35 f fit into theslot 17 and thedisk 35 e fits into thechamber 18. Thus, in the embodiment shown inFIGS. 3A , 3B and 4A for example, the lockingclamp block 16 is selectively, slideably connectable with respect to the keyedportion 35 d of thetop pin 35 in the longitudinal directions that are schematically indicated by the double ended arrow designated 42 inFIGS. 3A and 4A when thetop pin 35 is disposed transversely through the interior of thetop rail 11 for example. Since thedisk 35 e is too big to pass through theslot 17, when the keyedportion 35 d is held within theslot 17 andchamber 18 of the lockingclamp block 16, then it becomes impossible to disengage the lockingclamp block 16, and hence theintermediate brace 15, from thetop pin 35 by the exertion of forces in the vertical or transverse direction with respect to theheddle frame 10. - When the
head portion 35 a of thetop pin 35 is anchored to thetop rail 11 by awasher 36 and a threadednut 37 as schematically shown inFIGS. 1 and 4A , then thetop rail 11 can be connected to theintermediate brace 15 in this fashion. As shown inFIG. 1 , a similar arrangement of the opposite end of theintermediate brace 15 and abottom pin 45 that is configured like thetop pin 35 effects the same connection between theintermediate brace 15 and thebottom rail 12. Tightening thetop pin 35 compresses the tworails aluminum profile 10 at the location of theintermediate brace 15. Tightening thenut 37 on thehead portion 35 a of thetop pin 35 and/or thenut 47 on thecounterpart bottom pin 45 creates a parallel condition of theheddle frame 10 that sets the vertical distance over the heddle bars 19, and that vertical distance allows about a three millimeter clearance that is enough for theheddles 14 to run freely on the heddle bars 19. Moreover, increasing the stiffness of theheddle frame 10 can reduce the number ofintermediate braces 15 that are needed along the length of theheddle frame 10. - The
deep pocket 32 can extend from the bottommost edge of thefront wall 21 of thetop rail 11 to the penultimate bottominternal web 25 e of thetop rail 11. The difference in depth between thedeep pocket 32 and theshallow pocket 31 is attributed to theskirt flange portions 31 a that extend vertically downwardly and away from the penultimatelower web 25 d. These twoskirt flange portions 31 a and the penultimatelower web 25 d define agroove 31 c within which are received theflanges 16 c that define theslot 17 in the lockingclamp block 16 that is to be connected to the keyedportion 35 d end of thetop pin 35. As shown inFIG. 3B for example, the exterior surfaces of theflanges 16 c of the lockingclamp block 16 are configured to be received within thegroove 31 c that is defined between the interior-facing surfaces of theskirt flange portions 31 a of thefront wall 21 and therear wall 22 that define thetop rail 11. Theflanges 16 c of the lockingclamp block 16 received within thegroove 31 c act to prevent the lockingclamp block 16 from twisting with respect to thetop rail 11. - As shown in
FIG. 3A , a sealing block 50 (only part is visible in the view shown) is received within thedeep pocket 32 that is defined in the lower portion of thetop rail 11 and can be secured therein by connecting the sealingblock 50 to thetop rail 11. This connection can be accomplished in any of a number of ways. As shown inFIG. 3A , the sealingblock 50 can include a removably securable fastener such as a threadedpin 50 a that threads into a threadedopening 50 b in the penultimate bottominternal web 25 d. Thus, the sealingblock 50 prevents enough movement in the direction of the double-headedarrow 42 that would result in the escape of the tip of the keyedportion 35 d of thetop pin 35 from within thechamber 18 defined in thesecond section 16 b of the lockingclamp block 16 to which thetop pin 35 was slideably connected. When the sealingblock 50 is removed from thedeep pocket 32, then as shown inFIG. 4A for example, the lockingclamp block 16 of theintermediate brace 15 can be moved in thelongitudinal direction 42 sufficiently clear of theskirt flange portions 31 a to release the tip of the keyedportion 35 d of thetop pin 35 from within thechamber 18 defined in the lockingclamp block 16. The lockingclamp block 16 and the attachedintermediate brace 15 then can be removed from the assembledframe 10 once thekeyed portions - In accordance with an aspect of the present invention, the
heddles 14 that are carried by theheddle frame 10 are free to move in thelongitudinal direction 42 past the intermediate braces 15. This is accomplished because of the manner of connecting theintermediate braces 15 to thetop rail 11 and thebottom rail 12 as well as the configuration of theintermediate brace 15 and the location of theintermediate brace 15 in front of theheddle bar 19. As shown inFIGS. 2A and 2B for example, thetransition region 15 k connects eachpaddle member 15 b on the end of eachintermediate brace 15 with themain body portion 15 a of theintermediate brace 15. Thus, in the view shown inFIG. 3B for example, theheddle 14 that is indicated by the chain-dashed line can move into and out of the paper and without such movement being impeded by virtue of the shape and position of theintermediate brace 15. The ninety degree twist of thetransition region 15 k of theintermediate brace 15 is shaped so that theintermediate brace 15 can be positioned in front of theheddle 14 rather than being alongside theheddle 14. If the shape of thebrace 15 were such that thebrace 15 was positioned alongside theheddle 14, then thebrace 15 would prevent passage of theheddle 14 past thebrace 15. Similarly, as shown inFIG. 3A , theheddles 14 that are illustrated by the chain-dashed lines can move to and fro in the directions of the double-headedarrow 42 without having such movement being impeded or blocked in any way by the position of theintermediate brace 15. - The present invention is particularly applicable for heddle frames that have so-called thin profiles. The relevant measurement that determines whether a frame is a thin profile frame is called the pitch. The pitch of a heddle frame is measured in the direction of the arrow beneath the legend TO REED in
FIG. 3B . The pitch measurement is taken between the vertical centerlines of two heddle frames that are resting against one another as they would be placed in a loom. This pitch measurement also takes into account the fact that there would be nose guides in place during the measurement of the pitch, as nose guides would be used when the heddle frames are positioned in the looms in order to reduce frictional wearing of theprofiles - A typical heddle frame has a length (measured from left to right across the page in
FIG. 1 ) of twelve to fourteen meters. The longer the thin profile frame, the more braces are needed in order to ensure that the frame retains its rectangular shape. However, with thinner profiles, less space is available to accommodate the braces in a conventional arrangement. For aheddle frame 10 to be considered a thin profile frame for purposes herein, the relevant pitch measurement would be no more than about twenty millimeters. In a way that is not possible with conventional bracing arrangements, the present invention is configured to accommodate braces in thin profile frames. A pitch in the range of about of ten millimeters to about twelve millimeters is contemplated herein for frames with the benefit of braces in accordance with the present invention. - As noted above, the configuration of the
bottom rail 12 is merely the mirror image of the configuration of thetop rail 11 described above. Thus, thebottom rail 12 would be connected to the opposite end of theintermediate brace 15 via abottom pin 45 that was similarly configured to thetop pin 35 described above. However, it is contemplated that differently configured locking clamp blocks 16 might be attached to each of the opposite ends of theintermediate brace 15. In such situations, the manner of connecting the respective second free end of each respectivetop pin 35 orbottom pin 45 would need to be configured in a complementary manner to interact with whatever configuration was presented by the locking clamp block to which the top or bottom connecting pin was to be connected. -
FIG. 4B illustrates an alternative embodiment of a lockingclamp block 216 in accordance with the present invention. As shown therein, the lockingclamp block 216 includes abase portion 216 a. Each one of a pair of outwardly extendingwing portions 216 c is connected to an opposite end of thebase portion 216 a. Thewing portions 216 c and thebase portion 216 a can be formed as a unitary structure or can be integrated from two separate elements that are mechanically connected together. Abridge member 216 d can be connected to each of thewing portions 216 c. The upper surface of thebase portion 216 a, the underside of thebridge member 216 d and the internal edges of thewing portions 216 c together define a chamber 216 b. A key hole-shapedslot 216 e can be defined through thebridge member 216 d above the chamber 216 b and is configured to receive therein a suitably configured tip defining akeyed portion 35 d of the second free end of thetop pin 35. Desirably, thebridge member 216 d is removably securable to the lockingclamp block 216 bybolts 216 f that can be passed throughopenings 216 g in thewing portions 216 c and threaded into threadedopenings 216 h defined in the ends of thebridge member 216 d. The threadedopenings 216 h in the bridge portion are aligned withnon-threaded openings 216 g through thewing portions 216 c of the lockingclamp block 216. Between each of the threadedopenings 216 g and the extreme lateral edge of thebridge member 216 d, there can be defined adetent 216 j that can be configured to be received within thegroove 31 c that is formed between theskirt flange portions 31 a that define one boundary of theshallow pocket 31 defined in the lower portion of thetop rail 11. Thedetents 216 j received within thegroove 31 c act to prevent the locking clamp block 216 from twisting with respect to thetop rail 11. This embodiment of the lockingclamp block 216 can be used with a sealingblock 50 andtop pin 35 in much the same manner as the lockingclamp block 16 described above. - Another alternative embodiment of the locking clamp block and associated brace and pin are shown in
FIG. 4C , which in the interest of simplifying the view shown inFIG. 4C , does not show the heddles or theheddle bar 19 attached to theprojection member 24 of the carryingflange 23 of thefront wall 21 of thetop rail 11. Instead of being permanently attached to the end of anintermediate brace 315, the lockingclamp block 316 embodiment shown inFIG. 4C is slideably attachable along the longitudinal directions indicated by the double-headedarrow 42 to the free end of theintermediate brace 315. TheFIG. 4C embodiment is similar to theFIG. 4A embodiment, except that the base 316 g of the lockingclamp block 316 is configured to connect to thetop pin 335, and the first andsecond sections clamp block 316 are configured to be connected to theintermediate brace 315. The lockingclamp block 316 defines afirst section 316 a that in turn defines an entrance slot 317. The lockingclamp block 316 further defines asecond section 316 b that defines achamber 318 internally of thesecond section 316 b of the lockingclamp block 316. Thepaddle portion 15 b of theintermediate brace 315 is provided with akeyed portion 315 d that can be configured with an elongated hexahedron 315 e on the tip or distal-most end of the keyedportion 315 d of theintermediate brace 315. Thekeyed portion 315 d of theintermediate brace 315 can be configured further with a pair of opposedflat surfaces 315 f between the hexahedron 315 e and thetransition portion 15 k of theintermediate brace 315. The pair of opposedflat surfaces 315 f are configured to fit into the slot 317, and the hexahedron 315 e is configured to fit into thechamber 318 but not into the slot 317 of the lockingclamp block 316. - As shown in
FIG. 4C , a pair ofdetents 316 j extend away from the upper surface of the base 316 g of the lockingclamp block 316 and are configured to be received within thegroove 31 c that is formed at the leading edge of theshallow pocket 31 formed in the lower portion of thetop rail 11. Thedetents 316 j are shown cylindrically shaped, but they also can be shaped as thedetents 216 j that are shown inFIG. 4B for example. This embodiment of the lockingclamp block 216 can be used with a sealingblock 50 andtop pin 35 in much the same manner as the lockingclamp block 16 described above. - In this embodiment of
FIG. 4C , thetop pin 335 can have a generally cylindrical exterior surface over substantially its entire length and can define ahead portion 335 a on a first free end thereof. The free end of thehead portion 335 a of thetop pin 335 can include arecess 335 b configured to receive a tool that facilitates being able to grasp thepin 335 and rotate thepin 335 about its lengthwise axis, also know as its longitudinal axis. In the embodiment that is shown inFIG. 4C , the cross-section of therecess 335 b has a hexagonal shape, but other configurations can be provided for the free end of thehead portion 335 a of thetop pin 335 to accomplish the same purpose. As in the embodiment that is shown inFIG. 4A , thetop pin 335 can have a generally threadedexterior surface 335 c over the distal portion of thehead portion 35 a. Thehead portion 335 a of thetop pin 335 is anchored to thetop rail 11 by a threadednut 337 that engages the threadedexterior surface 335 c of thehead portion 335 a. In this embodiment ofFIG. 4C , the second end of thetop pin 335 is configured with a threadedtip 335 d that can be received by being screwed into a threadedopening 316 e disposed in the base 316 g of the lockingclamp block 316 and connects thetop rail 11 to theintermediate brace 15 in this fashion. - Another alternative embodiment of the locking clamp block is shown in
FIG. 4D . TheFIG. 4D embodiment of a lockingclamp block 416 is similar to the embodiment shown inFIG. 4C except for the fact that the lockingclamp block 416 is fixed to the free end of theintermediate brace 15 in much the same fashion as the embodiment shown inFIGS. 4A and 4B . However, the movement of theintermediate brace 15 in the longitudinal direction is effected by movement of thetop pin 435. - As shown in
FIG. 4D , instead of the aligned circular holes that receive the shaft of thetop pin 435, thetop web 25 a and the remaining intermediate webs such as the penultimate bottominternal web 25 d that connect thefront wall 21 and theback wall 22 of thetop rail 11 are provided with aligned elongated slots, e.g.,elongated slot 426 d defined in the penultimate bottominternal web 25 d. Each of these slots elongates in the longitudinal direction, which is the direction in which it is desired to have the freedom to translate the position of theintermediate brace 15. In the embodiment shown inFIG. 4D , areinforcement plate 436 is attached (as by threaded screws for example) to theweb member 25 a that defines the top wall of thetop rail 11. Thereinforcement plate 436 defines aslot 436 a that is aligned with the elongated opening that is formed in thetop wall 25 a of thetop rail 11. - Additionally, in the embodiment shown in
FIG. 4D , aguide plate 437 having adetent 437 a that is slideably received in theslot 436 a in the reinforcingplate 436 is provided. Theguide plate 437 defines a throughhole 437 b that receives the shaft of thetop pin 435 therethrough. Theguide plate 437 is disposed between thehead 435 b of thetop pin 435 and thereinforcement plate 436 so that thehead 435 b of thetop pin 435 can engage theguide plate 437, which acts as a washer to ensure a tight fit when the threadeddistal end 435 d of thetop pin 435 is screwed into the threadedopening 416 e that is formed in lockingclamp block 416. As in the view shown inFIG. 4C , the view inFIG. 4D also does not show theheddle bar 19 orheddles 14 in order to avoid unnecessarily cluttering the view of the lockingclamp block 416 embodiment shown inFIG. 4D . - As shown in
FIG. 4D , a pair ofdetents 416 j extend away from the upper surface of the base 416 g of the lockingclamp block 416 and are configured to be received within thegroove 31 c that is formed at the leading edge of theshallow pocket 31 formed in the lower portion of thetop rail 11. Thedetents 416 j are shown as elongated hexahedron shaped, but they also can be shaped as thedetents 316 j that are shown inFIG. 4C for example. This embodiment of the lockingclamp block 416 can be used with a sealingblock 50 in much the same manner as the lockingclamp block 16 described above. - Another alternative embodiment of the locking clamp block is shown in
FIG. 4E . As in the lockingclamp block 416 ofFIG. 4D , as shown inFIG. 4E , a lockingclamp block 516 is similarly provided with elongated slots defined through the webs of thetop rail 11, areinforcement plate 436, and aguide plate 537. Theguide plate 537 defines aclearance hole 537 b through which a threadedexterior surface 535 c of the head portion of thetop pin 535 can be passed and freely rotated. - As shown in
FIG. 4E , the embodiment of achamber 518 of the lockingclamp block 516 has a tongue-in-groove connection with akeyed portion 535 e at the tip of thetop pin 535 at the second free end of thetop pin 535. In theFIG. 4E embodiment, the longitudinal translational motion occurs within the confines of the elongated slots that are defined in the internal webs of thetop rail 11, e.g.,elongated slot 426 d defined in the penultimate bottominternal web 25 d. As shown inFIG. 4E , the first free end of thetop pin 535 is provided with a threadedexterior surface 535 c to receive thereon anut 37 that has mating threads. When the tongue-in-groove connection is made between thetop pin 535 and the lockingclamp block 516 attached to the intermediate brace, then tightening of thenut 37 on the threaded first free end of thetop pin 535 applies tension to theintermediate brace 15 and between the top rail and the bottom rail of the heddle frame. The line designated 43 schematically indicates the direction of travel of theplate 535 e forming the tip at the second free end of thetop pin 535 into and out of thechamber 518 that is formed in the lockingclamp block 516. - As shown in
FIG. 4E , a pair ofdetents 516 j extend away from the upper surface of the lockingclamp block 516 and are configured to be received within thegroove 31 c that is formed at the leading edge of theshallow pocket 31 formed in the lower portion of thetop rail 11. Thedetents 516 j are shown as elongated hexahedron shaped, but they also can be shaped as thedetents 316 j that are shown inFIG. 4C for example. This embodiment of the lockingclamp block 516 can be used with a sealingblock 50 in much the same manner as the lockingclamp block 16 described above. - Another alternative embodiment of the locking clamp block is illustrated in
FIG. 4F . As shown inFIG. 4F , a locking clamp block 616 defines a first flat,narrow plate 616 a and asecond connector plate 616 d, The first flat,narrow plate 616 a is fixed (as by being welded) to the extreme free edge of thepaddle portion 15 b of theintermediate brace 15. Near each of the opposed end portions of thistop plate 616 a is defined anelongated slot 616 b that elongates in the longitudinal direction that is indicated by the double-headedarrow 42 shown inFIG. 4F . In this particular embodiment, each of a pair oftop pins top rail 11 in much the same way thattop pin 35 passes through the throughholes top wall 25 a andinternal web FIG. 4A . Neither of thetop pins top rail 11. Though not shown in this view ofFIG. 4F , the first free end of each of the twin top pins 635, 635 can be connected to thetop rail 11 in much the same fashion as eitherpin 35 is connected as shown inFIG. 4A or aspin 335 is connected as shown inFIG. 4C . - The second free end of each of the twin top pins 635, 635 is provided with a threaded
tip 635 d that is screwed into a separate threadedopening 616 e that is defined in the secondflat connector plate 616 d. Thebottom connector plate 616 d has arecess 616 c with a depth sufficient to receive therein thepaddle member 15 b. Each of the twin top pins 635 is threaded into a respective one of the threadedopenings 616 e in thisbottom connector plate 616 d. Therecess 616 c in thisbottom connector plate 616 d is longer in the longitudinal direction than the width of thepaddle portion 15 b of theintermediate brace 15 is wide in the same longitudinal direction. This relatively larger sizing of therecess 616 c permits movement of theintermediate brace 15 with respect to the twin pins 635 to a certain extent to either side in the longitudinal direction indicated by the double-headedarrow 42 when the twin pins 635 are threaded into thebottom connector plate 616 d. TheFIG. 4F embodiment only requires a singledeep pocket 32 in the lower portion of thetop rail 11 and thus eliminates the need for a deep pocket and a shallow pocket in this lower portion of thetop rail 31 in order to accommodate this embodiment of theintermediate brace 15. - While several presently preferred embodiments of the invention have been described using specific terms, such descriptions are for illustrative purposes only, and it is to be understood that changes and variations may be made without departing from the spirit or scope of the following claims.
Claims (20)
1. A heddle frame for supporting a plurality of heddles, comprising:
a top rail extending longitudinally relative said frame and defining opposed top rail ends thereof, the top rail defining a front wall and a rear wall opposed to said front wall of said top rail;
a top heddle bar configured for slidably carrying the plurality of heddles, said top heddle bar being carried by said top rail and disposed toward said back of said top rail;
a bottom rail extending longitudinally relative said frame and parallel to said top rail and defining opposed bottom rail ends thereof, the bottom rail defining a front wall and a rear wall opposed to said front wall of said bottom rail;
a bottom heddle bar configured for slidably carrying the plurality of heddles, said bottom heddle bar being carried by said bottom rail and disposed toward said back of said bottom rail;
a first end member connecting a first top rail end of said top rail to a first bottom rail end of said bottom rail so as to form part of a generally rectangular frame structure therewith;
a second end member connecting a second top rail end of said top rail to a second bottom rail end of said bottom rail so as to form part of a generally rectangular frame structure therewith;
a carrying flange extending from said front wall of said top rail and toward said bottom rail, said top heddle bar being connected to said carrying flange;
said top rail defines a first cut out portion extending through a section of said carrying flange; and
at least one intermediate brace extending between said top rail and said bottom rail at a position aligned with said first cut out portion and configured for assisting in maintaining parallelism of said top and bottom rails, said intermediate brace having a first end connected to said top rail, said intermediate brace having a second end connected to said bottom rail.
2. A heddle frame as in claim 1 , wherein said intermediate brace is configured to permit the heddles unimpeded longitudinal movement past said intermediate brace.
3. A heddle frame as in claim 1 , wherein said first end of said intermediate brace is disposed between said top heddle bar and said front of said top rail.
4. A heddle frame as in claim 1 , wherein at least one end of said intermediate brace is configured with a transition region having a ninety degree twist to permit heddles unimpeded longitudinal movement past said intermediate brace.
5. A heddle frame as in claim 4 , wherein:
said intermediate brace defines a rigid elongated rod having a main body portion defining a relatively narrow front edge and a pair of opposed, relatively wider side surfaces, said intermediate brace further defining on each opposite end thereof, a relatively flattened, thin-profiled paddle portion, each paddle portion defining a relatively wide rear surface and relatively wide front surface disposed opposite said rear surface, each said paddle portion defining relatively narrow side edges, each said main body portion of the intermediate brace extending generally to a transition portion that tapers from narrow to wide when moving in the direction away from the end of the main body portion and toward each respective paddle portion.
6. A heddle frame as in claim 1 , wherein the pitch of the generally rectangular frame structure is no more than 20 millimeters.
7. A heddle frame as in claim 1 , wherein the pitch of the generally rectangular frame structure is no more than 12 millimeters.
8. A heddle frame as in claim 1 , wherein said intermediate brace is configured so as to be selectively, detachably connected to said top rail.
9. A heddle frame as in claim 1 , further comprising:
a locking clamp block selectively, detachably attached to said top rail and said intermediate brace to connect said intermediate brace to said top rail, said clamp block defining a first section and a second section, said second section of said clamp block defining a chamber internally thereof, said first section defining an entrance slot communicating with said chamber;
a top pin defining a first free end and a second free end opposite said first free end, said top pin defining a head on said first free end thereof and a keyed section on said second free end thereof, said keyed section being configured to be received in said entrance slot and said chamber and slideably disposed in said entrance slot and said chamber, said keyed section defining a tip configured to be slideably disposed in said chamber and incapable of passing through said entrance slot so as to selectively, slideably connect said top pin to said locking clamp block and said intermediate brace.
10. A heddle frame as in claim 1 , wherein said first end of said intermediate brace being non-rotatably connected to said top rail.
11. A heddle frame as in claim 10 , wherein:
said top rail defines a hollow extrusion between said front and rear walls, said hollow extrusion having a plurality of internal webs that extend between the front wall and the rear wall, one of said internal webs defining a top-most web, one of said internal webs defining a bottom-most web and another of said internal webs defining a penultimate web, said bottom-most web being said internal web disposed nearest to said penultimate web and farthest from said top-most web; and
said first cut out portion in said top rail extending through said bottom-most internal web and defining a relatively shallow pocket between said bottom-most internal web and said penultimate internal web, said first cut out portion defining a pair of opposed skirt flange portions extending beneath said penultimate internal web, said pair of opposed skirt flange portions and the penultimate internal web defining a groove therebetween.
12. A heddle frame as in claim 11 , further comprising:
a locking clamp block being configured to selectively, detachably connect said top rail and said intermediate brace, said locking clamp block defining a first section and a second section, said first section of said locking clamp block defining a pair of opposed flanges, said flanges of said first section of said locking clamp block being configured to be selectively received non-rotatably in said groove of said shallow pocket.
13. A heddle frame as in claim 12 , wherein:
each flange of said locking clamp block having an interior-facing surface, said interior-facing surfaces defining an entrance slot, said locking clamp block further defining a chamber internally thereof, said chamber communicating with said entrance slot.
14. A heddle frame as in claim 13 , further comprising:
a top pin having a first free end and a second free end disposed opposite said first free end, said first free end of said top pin defining a head, said second free end defining a keyed section, said keyed section being configured to be received in said entrance slot and said chamber and slideably disposed in said entrance slot and said chamber, said keyed section defining a tip configured to be slideably disposed in said chamber and incapable of passing through said entrance slot so as to selectively, slideably connect said top pin to said locking clamp block.
15. A heddle frame as in claim 12 , further comprising:
a sealing block connected to the top rail; and
wherein said top rail defines a second cut out portion extending through a second section of said carrying flange, said second cut out portion being disposed in communication with said first cut out portion, said sealing block being received by said second cut out portion.
16. A heddle frame as in claim 1 , wherein said second end of said intermediate brace being disposed between said bottom heddle bar and said front of said bottom rail.
17. A heddle frame as in claim 9 , wherein:
said top rail defines a hollow extrusion between said front and rear walls, said hollow extrusion having a plurality of internal webs that extend between the front wall and the rear wall, one of said internal webs defining a top-most web, one of said internal webs defining a bottom-most web and another of said internal webs defining a penultimate web, said bottom-most web being said internal web disposed nearest to said penultimate web and farthest from said top-most web, each said internal web defining a hole through said web and each said hole through said internal web being aligned with each other said hole through each said other internal web, each said hole through said internal web being configured to allow the passage therethrough of said top pin, said head of said top pin being detachably connected to said top-most web of said top rail.
18. A heddle frame as in claim 10 , wherein:
said top rail defines a hollow extrusion between said front and rear walls, said hollow extrusion having a plurality of internal webs that extend between the front wall and the rear wall, one of said internal webs defining a top-most web, one of said internal webs defining a bottom-most web and another of said internal webs defining a penultimate web, said bottom-most web being said internal web disposed nearest to said penultimate web and farthest from said top-most web;
each said internal web defining a first hole through each said internal web, each said first hole through said internal web being aligned with each other said first hole through each other said internal web; and
each said internal web defining a second hole through each said internal web, each said second hole through each said internal web being aligned with each other said second hole through each other said internal web.
19. A heddle frame as in claim 18 , further comprising:
a locking clamp block connected to one end of said intermediate brace, said intermediate brace defining a rigid elongated rod having a main body portion defining a relatively narrow front edge and a pair of opposed, relatively wider side surfaces, said intermediate brace further defining on each opposite end thereof, a relatively flattened, thin-profiled paddle portion, each paddle portion defining a relatively wide rear surface and relatively wide front surface disposed opposite said rear surface, each said paddle portion defining relatively narrow side edges, each said main body portion of the intermediate brace extending generally to a transition portion that tapers from narrow to wide when moving in the direction away from the end of the main body portion and toward each respective paddle portion; and
said locking clamp block defining a top plate and a connector plate, the top plate being fixed to the end of the paddle portion of the intermediate brace, the top plate having opposed end portions, near each of the opposed end portions of the top plate is defined an elongated slot that elongates in the longitudinal direction, the connector plate is connected to at least one of the side surfaces of the paddle member of the intermediate brace, the connector plate defines a threaded opening near each opposite end of the connector plate.
20. A heddle frame as in claim 19 , further comprising:
a first top pin having a first free end and a second free end disposed opposite said first free end, said first top pin being disposed through said aligned first holes that are defined in the internal webs of the top rail, said first free end of said first top pin defining a head that is selectively, detachably connected to the top rail, said second free end of said first top pin defining a threaded tip that is selectively, detachably screwed into one of said separate threaded openings that is defined in the connector plate so as to selectively connect said first top pin to said locking clamp block and said intermediate brace; and
a second top pin having a first free end and a second free end disposed opposite said first free end, said second top pin being disposed through said aligned second holes that are defined in the internal webs of the top rail, said first free end of said second top pin defining a head that is selectively, detachably connected to the top rail, said second free end of said second top pin defining a threaded tip that is selectively, detachably screwed into the other one of said separate threaded openings that is defined in the connector plate so as to selectively connect said second top pin to said locking clamp block and said intermediate brace.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US12/295,399 US20100012218A1 (en) | 2007-01-22 | 2008-01-16 | Heddle frame with multi-directional adjustable brace |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US88162007P | 2007-01-22 | 2007-01-22 | |
PCT/US2008/051145 WO2008091767A2 (en) | 2007-01-22 | 2008-01-16 | Heddle frame with multi-directional adjustable brace |
US12/295,399 US20100012218A1 (en) | 2007-01-22 | 2008-01-16 | Heddle frame with multi-directional adjustable brace |
Publications (1)
Publication Number | Publication Date |
---|---|
US20100012218A1 true US20100012218A1 (en) | 2010-01-21 |
Family
ID=39645098
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/295,399 Abandoned US20100012218A1 (en) | 2007-01-22 | 2008-01-16 | Heddle frame with multi-directional adjustable brace |
Country Status (3)
Country | Link |
---|---|
US (1) | US20100012218A1 (en) |
EP (1) | EP2047017A4 (en) |
WO (1) | WO2008091767A2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130068343A1 (en) * | 2011-09-20 | 2013-03-21 | Groz-Beckert Kg | High-Speed Safety Heald Shaft |
US20150237417A1 (en) * | 2012-09-20 | 2015-08-20 | Sony Corporation | Receiving device, receiving method, broadcasting device, broadcasting method, program, and link application control system |
CN109879018A (en) * | 2019-02-18 | 2019-06-14 | 福建伟易泰智能科技有限公司 | A kind of automatic selecting device of heald and choosing method |
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Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20130068343A1 (en) * | 2011-09-20 | 2013-03-21 | Groz-Beckert Kg | High-Speed Safety Heald Shaft |
US8813791B2 (en) * | 2011-09-20 | 2014-08-26 | Groz-Beckert Kg | High-speed safety heald shaft |
US20150237417A1 (en) * | 2012-09-20 | 2015-08-20 | Sony Corporation | Receiving device, receiving method, broadcasting device, broadcasting method, program, and link application control system |
CN109879018A (en) * | 2019-02-18 | 2019-06-14 | 福建伟易泰智能科技有限公司 | A kind of automatic selecting device of heald and choosing method |
Also Published As
Publication number | Publication date |
---|---|
WO2008091767A2 (en) | 2008-07-31 |
EP2047017A2 (en) | 2009-04-15 |
WO2008091767A3 (en) | 2008-12-04 |
EP2047017A4 (en) | 2010-07-21 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
AS | Assignment |
Owner name: GTP GREENVILLE, INC., A CORPORATION ORGANIZED UNDE Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:KORBUTT, THOMAS A.;PERSCHALL, RONALD L.;KRAMER, CHARLES F.;REEL/FRAME:023142/0007 Effective date: 20081120 |
|
STCB | Information on status: application discontinuation |
Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION |