JP4440134B2 - Loom opening device cover - Google Patents

Description

  The present invention relates to a cover for protecting a bearing member on the other end side of a plurality of rods, one end of which is connected to each flange frame and the other end of which is connected to a common swing lever, from the outside in the opening device.

  The hook frame of the opening device of the loom is connected to a rod extending in the vertical direction at least at two locations spaced in the weaving width direction to perform an opening motion. There is an opening device in which one end of such a rod is connected to a collar frame, the other end is connected to a swing lever, and a swing shaft is driven via the swing lever and the rod. Both ends of the rod are connected to a saddle frame and a swing lever via a bearing member such as a spherical bearing so that the swing shaft is on the front side of the weave with respect to the rod and extends in the weaving width direction. And is driven by a crank mechanism or the like (see, for example, Patent Document 1).

  In the gazette of Patent Document 1, a plurality of rods each having one end connected to a plurality of rib frames are provided, and the other ends of the plurality of rods are connected to a common swing lever, and the swing center of the swing lever In other words, they are spaced apart from each other in the oscillating radius direction from the axis of the oscillating shaft, and correspond to the respective saddle frames. Along with the movement of the swing lever, the plurality of connected frame frames simultaneously perform an opening movement. It is desirable to provide a cover so that the end of the rod is protected from water, fluff, dust, etc., and the bearing member can be prevented from losing its function due to rust and wear.

FIG. 6 is an example of a conventional cover that protects the other end of a plurality of rods, and is held by a swing lever. 6A is a plan view viewed from above, and B is a cross-sectional view. The swing lever has the shape shown in FIG. 1 to be described later, and the connecting portion with the plurality of rods is formed of a rectangular frame body as viewed from above, which is composed of four side walls with the upper and lower surfaces open. It has an accommodating space for rod ends and their bearing members. The swing lever is connected to the swing shaft with the connecting portion connected to the base via the arm portion. The cover is formed of an elastically deformable member, generally rubber, and the base of the cover is fitted and held in a collar provided at the upper end of the connecting portion of the swing lever, and a plurality of bellows-like portions protruding from the base ( 6 includes three deformable portions and rod insertion openings connected to the end portions of the respective bellows-like portions. The bearing portions of the bearing members of the plurality of rods are supported on both side walls orthogonal to the side wall on the arm side via bolts and nuts, and the bearing portion is supported on one end of the rod connecting portion of the bearing member. The rod connecting portion substantially constitutes the other end of the rod, and is connected to each rod through the respective insertion opening portions.
JP 56-20635 (FIGS. 1 and 2)

  Along with the swinging motion of the swinging shaft, the bearing portion of each bearing member and the other end of the rod move relative to each other in a plane perpendicular to the swinging shaft. Relative displacement in the arrangement direction of the mouth. The cover allows relative displacement between each insertion opening and the base by causing each bellows-like portion of the deformation portion to be relatively displaced in the arrangement direction of the insertion openings, that is, by deforming the cover. However, the plurality of rods are arranged parallel to each other between the swing lever and the collar frame, and the plurality of rods move up and down while maintaining a parallel state and maintaining an interval along with the swing motion. Yes. For this reason, the bellows-like portion corresponding to the insertion port portion located on the end side in the arrangement direction of the insertion port portions cracks more quickly on the end side than on the inner side. Specifically, the base end side is sufficiently supported by the swing lever, whereas the base center side between the end-side bellows-like portion and the center-side bellows-like portion adjacent to the portion is Since it is not sufficiently supported by the swing lever, the end side is constrained by the base end side and cannot be easily displaced in the bellows-like part on the end side, whereas the inside of the bellows-like part is on the center side of the base It can be easily displaced without being constrained by. Further, since the plurality of rods move while maintaining the parallel state and maintaining the interval, the compressive force generated by the rods being collapsed and approaching the plurality of rods inside the bellows-like portion, and the rod This is because the tensile force caused by the parallel state breaking apart and not being applied is not particularly applied. Accordingly, the bellows-like portion corresponding to the insertion port portion located on the end side in the arrangement direction of the insertion port portions is not subjected to a large stress on the inner side, whereas a large stress is repeatedly applied to the end side, so that Since the cracks occur in the cover, the cover needs frequent replacement.

  In view of the above-mentioned problems of the prior art, the object of the present invention is to provide a durable cover on the other end side of a plurality of rods, one end of which is connected to each frame and the other end is connected to a common swing lever. It is to improve the performance.

The present invention has been made in order to achieve the above object, and the cover of the opening device of the loom has one end connected to the respective frame and the other end pivoted in the rocking radial direction from the rocking center of the rocking lever. Is a cover for a plurality of rods that are attached to a rocking lever apart from each other, and corresponds to a base, a plurality of insertion ports through which the other ends of the rods are respectively inserted, and respective insertion ports to be formed from a plurality of bellows-shaped portion and a deformable portion, the arrangement direction of the insertion opening of the bellows-shaped part corresponding to at least one insertion opening positioned on the end for the arrangement direction of the insertion opening In the section in the arrangement direction, the length on the end side is larger than the length on the inner side (Claim 1).

  The plurality of bellows-like portions include a plurality of independent bellows-like portions provided independently of each other corresponding to each insertion opening (Claim 2).

  The plurality of bellows-like portions are formed from one bellows-like seat connected to the base and the plurality of independent bellows-like portions formed respectively connected to the bellows-like seat, and the bellows-like seat and each independent bellows-like portion. Corresponds to each insertion opening (claim 3).

  As for the said independent bellows-like part corresponding to the at least 1 insertion opening part located in the edge part side about the said arrangement direction, the insertion opening part is arrange | positioned inside the center position with respect to the said arrangement direction (Claim 4). .

  As the cover swings, the base and each insertion port move relative to each other in the arrangement direction of the insertion port, and the bellows-shaped portion deforms to move relative to the base of the corresponding insertion port. Is acceptable. An accordion-like portion corresponding to at least one insertion port portion located on the end side in the arrangement direction of the insertion port portions, that is, an accordion-like portion corresponding to the insertion port portion located at the end portion on the swing center side, Among the bellows-like portions corresponding to the insertion opening located at the moving center side end, both bellows-like portions, or any one of the bellows-like portions, because the length on the end side is larger than the inner length, The end side of the bellows-like portion can be easily deformed in the arrangement direction. The reason for this is that the bellows-like portion allows the displacement of the insertion opening by changing the bending angle, but if it is long, it does not require a large change in the bending angle and can be easily deformed. Therefore, conventionally, a large stress is repeatedly applied, and a large stress is not applied to the end portion side of the bellows-like portion that has been frequently damaged. Therefore, the durability of the cover is improved as a whole.

  Further, when the plurality of bellows-like portions include a plurality of independent bellows-like portions provided independently of each other corresponding to each insertion port portion, each insertion port portion is provided to be connected to each independent bellows-like portion. Thus, relative movement with respect to the base is allowed for each insertion port.

  The plurality of bellows-like portions are formed from one bellows-like seat connected to the base and a plurality of independent bellows-like portions formed respectively connected to the bellows-like seat, and the bellows-like seat and each bellows-like portion are formed. If the portion corresponds to each insertion port portion, a plurality of independent bellows-like portions are independently connected to a common bellows-shaped seat, so the insertion port portion located on the end side in the arrangement direction of the insertion port portions The length of the corresponding bellows-like portion is surely longer in the section in the arrangement direction by the length of the bellows-like seat than the inner length.

  Further, if the independent bellows-like portion corresponding to at least one insertion port portion located on the end side in the arrangement direction is disposed inside the center position in the arrangement direction, the insertion port The length of the bellows-like part corresponding to the insertion opening located on the end side in the arrangement direction of the parts is surely longer in the cross section in the arrangement direction than in the inner side. .

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. 1 and 2 show a cover 30 according to a first embodiment of the present invention. FIG. 1 shows a state in which the cover 30 is attached to an opening device, and a part of the cut surface is a side view seen from the right side of the loom. FIG. 2 is an enlarged view of the cover 30.

  The opening device of the present embodiment includes two swinging shafts that are spaced apart from each other, that is, a first swinging shaft 1 and a second swinging shaft 2, and the swinging shafts 1 and 2 are a crank mechanism or the like (not shown). Driven through. The first swing shaft 1 and the second swing shaft 2 extend in the weaving width direction, and the swing shafts 1 and 2 include a plurality of first swing levers 3 and a plurality of second swing levers. The four base portions 3c and 4c are fixed via bolts 20 and keys 21 at positions spaced apart in the weaving width direction. The first rocking lever 3 and the second rocking lever 4 are fixed while being shifted in the weaving width direction so as not to interfere with each other. Arm portions in which the connecting portions 3a, 4a of the swing levers 3, 4 with the plurality of rods 5, 6, 7, 8, 9, 10 extend in the delivery direction (right direction in FIG. 1) from the base portions 3c, 4c. It is connected to the bases 3c and 4c through 3b and 4b. The connecting portions 3a and 4a are formed of a rectangular frame body having a top surface and a bottom surface that are open and having a swing shaft side wall, a counter swing shaft side wall, a right side wall, and a left side wall, and a plurality of bearing members on the inside. 11 accommodation spaces. A rubber cover 30 is attached to the connecting portions 3a and 4a, and a base 31 of the cover 30 is fitted and held in a flange formed at the upper ends of the connecting portions 3a and 4a. The cover 30 has a deformed portion 32 having a bellows-like portion and connected to the base 31, and three insertion ports 33 formed to be connected to the deformed portion 32, and the arrangement of the three insertion ports 33 is a rocking shape. It corresponds to a plurality of rods 5, 6, 7 and a plurality of rods 8, 9, 10 arranged away from the axis of the dynamic shafts 1, 2 in the radial direction. A bearing member 11 including a bearing portion 11a and a rod connecting portion 11b is provided. The bearing portion 11a is supported on the right and left walls of the connecting portions 3a and 4a of the swing levers 3 and 4 via bolts 22 and nuts 23, respectively, and one end of the rod connecting portion 11b is connected to the bearing portion 11a. The other end comes out of each insertion hole 33 and is screwed to and connected to the other ends of rods 5, 6, 7, 8, 9, and 10 whose one ends are connected to a frame (not shown). The rod connecting portion 11b substantially forms the other ends of the rods 5, 6, 7, 8, 9, and 10, respectively. As the swinging shafts 1 and 2 swing, the bearings 11a of the respective bearing members and the other ends of the 5, 6, 7, 8, 9, and 10 are opposed to the surfaces orthogonal to the swinging shafts 1 and 2. Therefore, in the cover 30, the insertion openings 33 and the base 31 are relatively displaced in the arrangement direction of the insertion openings 33. In the cover 30, the bellows-shaped portion of the deformable portion 32 is displaced in the arrangement direction of the through-hole portions 33, that is, deformed, thereby allowing relative displacement between the respective through-hole portions 33 and the base 31.

  The 1st rod 5, the 3rd rod 6, and the 5th rod 7 connected with the 1st rocking lever 3 are connected with the odd-numbered eaves frame which is not illustrated counting from the cloth front side. That is, the first rod 5 is connected to the first rod frame, the third rod 6 is connected to the third rod frame, and the fifth rod 7 is connected to the fifth rod frame. Further, the second rod 8, the fourth rod 9, and the sixth rod 10 connected to the second swing lever 4 are connected to even-numbered frames (not shown) counted from the front side of the weave. That is, the second rod 8 is connected to the second rod frame, the fourth rod 9 is connected to the fourth rod frame, and the sixth rod 10 is connected to the sixth rod frame. FIG. 3 shows a state where odd-numbered hook frames connected to the first swing lever 3 are positioned at the upper opening position, and even-numbered hook frames connected to the second swing lever 4 are positioned at the lower opening position. Indicates.

  As shown in FIG. 2, the cover 30 includes a base 31, a deforming portion 32, and three insertion port portions 33. The bellows-like seat 32a is connected to the base 31, and three independent bellows-like portions 32ba, 32bb, 32bc are connected to the bellows-like seat 32a independently of each other. 32a and three independent bellows-like portions 32ba, 32bb, 32bc respectively connected to the bellows-like seat 32a. Three insertion opening portions 33 are formed and connected to the end portions of the independent bellows-like portions 32ba, 32bb, and 32bc, respectively.

  Of the three independent bellows-like portions 32ba, 32bb, 32bc, the independent bellows-like portion located on the end side of the base 31, that is, the independent bellows-like portion 32ba located on the right end side of the base 31, and the left end portion of the base 31 In the independent bellows-like portion 32bc located on the side, the insertion port portion 33 is closer to the inner side in the arrangement direction of the insertion port portion 33 than the center position, and is closer to the independent bellows-like portion 32bb. In the cross section in the arrangement direction of the insertion port portion 33, the length of the bellows-like portion from the insertion port portion 33 to the bellows-like seat 32a is the inner length of the end portion side, as shown in the cross-sectional view shown in FIG. Longer than that. Furthermore, the end portions of the independent bellows-like portion 32ba and the independent bellows-like portion 32bc are connected to the bellows-like seat 32a. As described above, the bellows-like portion corresponding to the insertion port portion 33 located on the end side of the base 31 has a long end-side length in the independent bellows-like portions 32ba and 32bc, and the length of the bellows-like seat 32a. Is much longer than the inner length.

  For this reason, as shown in FIG. 1, the insertion port portion 33 located on the end portion side of the base 31 of the deformable portion 32 regardless of whether the swing levers 3 and 4 are in the upper position or the lower position. In the bellows-shaped portion corresponding to, the end side that has been damaged quickly can be easily deformed in the arrangement direction of the insertion port portions 33, and the applied stress is reduced. Thereby, durability of the cover 30 improves as a whole.

  A bottom cover or the like may be provided at the lower ends of the coupling portions 3a and 4a of the swing levers 3 and 4. The bearing portion 11a of the bearing member 11 is intruded by water, fluff, dust, etc. from above by the cover 30. In addition to being protected from water, it is also protected from intrusion of water, fluff, dust and the like from below by a bottom lid or the like.

  The opening device of the present embodiment has six hook frames, and the first rocking lever 3 and the second rocking lever 4 are connected to odd-numbered and even-numbered hook frames, respectively, counted from before weaving. The first oscillating lever 3 and the second oscillating lever 4 may be used in an opening device having four frame frames in the same shape. In that case, the cover 30 attached to the first rocking lever 3 and the second rocking lever 4 is an independent bellows-like shape located on the end side of the base 31 among the three independent bellows-like portions 32ba, 32bb, 32bc. Any one of the insertion port portions 33 connected to the portions 32ba and 32bc may not be opened, that is, the insertion port portion 33 may not be provided, and the bearing portion 11a of the bearing member 11 is protected. Thereby, the cover 30 can be commonly used for the opening device having four hook frames and the opening device having six hook frames while keeping the base 31 and the deforming portion 32 in the same shape.

  FIG. 3 shows a cover 40 according to a second embodiment of the present invention. FIG. 3A is a plan view viewed from above, and FIG. 3B is a sectional view. The cover 40 includes a base 41, a deforming part 42, and three insertion opening parts 43. The deformable portion 42 has three independent bellows-like portions 42 a, 42 b, 42 c that are respectively connected to the base 41. Three insertion opening portions 43 are formed and connected to the end portions of the independent bellows-like portions 42a, 42b, and 42c, respectively.

  Of the independent bellows-like portions 42a, 42b, and 42c, the independent bellows-like portion 42a located on the right end side of the base 41 and the independent bellows-like portion 42c located on the left end side of the base 41 both have the insertion opening 43. , Closer to the inner side in the arrangement direction of the insertion port portion 43 than the central position, is approaching the independent bellows-like portion 42b, and is connected to the base 41 from the insertion port portion 43 as shown in the cross-sectional view shown in FIG. In the cross-section up to, the end side length is longer than the inner length. Therefore, like the cover 30 of the first embodiment, the cover 40 has improved durability.

  FIG. 4 shows a cover 50 according to a third embodiment of the present invention. FIG. 4A is a plan view viewed from above, and FIG. 4B is a sectional view. The cover 50 includes a base 51, a deforming part 52, and three insertion opening parts 53. The deformable portion 52 includes, as bellows-like portions, a bellows-like seat 52a connected to the base 51 and three independent bellows-like portions 52ba, 52bb, 52bc respectively connected to the bellows-like seat 52a. Three insertion port portions 53 are formed and connected to the end portions of the independent bellows-like portions 52ba, 52bb, and 52bc, respectively.

  Of the three independent bellows-like portions 52ba, 52bb, 52bc, the independent bellows-like portions 52ba, 52bc are both located at the end portions of the bellows-like seat 52a. Therefore, the bellows-like portion corresponding to the insertion opening 53 located on the end side of the base 51 is longer on the end side than the inside by the length of the bellows-like seat 52a. Therefore, the durability of the cover 50 is improved as in the above-described embodiment.

  FIG. 5 shows a cover 60 according to a fourth embodiment of the present invention. FIG. 5A is a plan view viewed from above, and FIG. 5B is a sectional view. The cover 60 includes a base 61, a deforming portion 62, and three insertion port portions 63. The deformable portion 62 is located on the end side of the three independent bellows-like portions 62ba, 62bb, 62bc connected to the base 61 and the independent bellows-like portions 62ba, 62bc, and is orthogonal to the arrangement direction of the insertion port portions 63. , Ie, extending in the axial direction of the oscillating shafts 1 and 2, and having an oscillating axis direction bellows-like portion 62 a connected to the base 61.

  In the bellows-like portion corresponding to the insertion port portion 63 located on the end portion side of the base 61, the length on the end portion side is longer than the inside by the amount corresponding to the bellows-like portion 62a in the swing axis direction, and the applied stress is increased. It becomes small and the end side durability is improved. That is, a part of the base 61 is interposed between the independent bellows-like portions 62ba and 62bc and the swing axis direction bellows-like portion 62a, but the insertion direction portion 63 of the insertion shaft portion 63 of the swing axis direction bellows-like portion 62a is deformed. Accordingly, part of the base 61 is also displaced, so that the insertion opening 63 of the independent bellows-like portions 62ba and 62bc can be easily moved relative to the base 61. Therefore, the durability of the cover 60 is improved as in the above-described embodiment.

  In any of the above-described embodiments, the cover 30, 40, 50, 60 has three insertion ports 33, 43, 53, 63, but the two insertion ports 33, 43, 53, 63 are two. Or four or more. The same effect is obtained at the end portion side of the bellows-like portion corresponding to the insertion port portions 33, 43, 53, 63 located on the end portion side of the base 31, 41, 51, 61.

  In any of the above embodiments, the deformable portions 32, 42, 52, 62 are the two insertion port portions 33, 43, 53, 63 located on both end sides of the bases 31, 41, 51, 61, respectively. However, it may correspond to only one insertion port 33, 43, 53, 63 located on the end side. For example, only the insertion port portions 33, 43, 53, 63 on the end portion side on the anti-oscillation shaft side may be supported.

  The present invention is not limited to any of the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention.

1 is a side view of a cover 30 according to a first embodiment of the present invention attached to an opening device, viewed from the right side of a loom, and includes a part of a cut surface. 3 is an enlarged view of a cover 30. FIG. The cover 40 of the 2nd Example of this invention is shown. The cover 50 of the 3rd Example of this invention is shown. 4 shows a cover 60 of a fourth embodiment of the present invention. A conventional cover is shown.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 1st rocking shaft 2 2nd rocking shaft 3 1st rocking lever 3a Connection part 3b Arm part 3c Base part 4 Second rocking lever 4a Connection part 4b Arm part 4c Base part 5 1st rod 6 3rd rod 7 1st 5 rod 8 second rod 9 fourth rod 10 sixth rod 11 bearing member 11a bearing portion 11b rod connecting portion 20 bolt 21 key 22 bolt 23 nut 30 cover 31 base 32 deformed portion 32a bellows-like seat 32ba independent bellows-like portion 32bb independent Bellows portion 32bc Independent bellows portion 33 Insertion port 40 Cover 41 Base 42 Deformed portion 42a Independent bellows portion 42b Independent bellows portion 42c Independent bellows portion 43 Insertion port portion 50 Cover 51 Base 52 Deformed portion 52a Bellows seat 52ba Independent bellows-like part 52bb Independent bellows-like part 52bc Independent bellows-like part 53 Insertion part 60 Cover 61 Over scan 62 deformable portion 62a pivot axis direction bellows portion 62ba independently convoluted portion 62bb independently convoluted portion 62bc independently convoluted portion 63 through opening portion

Claims (4)

In a cover of an opening device for a plurality of rods, one end of which is connected to each flange frame and the other end is separated from the swing center of the swing lever in the swing radial direction and attached to the swing lever. includes a plurality of insertion port portion to which the other end of the rod is inserted, respectively, and a deformable portion formed of a plurality of bellows-like portion corresponding to the respective insertion opening, an end for the arrangement direction of the insertion opening The length in the arrangement direction of the insertion port portion of the bellows-like portion corresponding to at least one insertion port portion located on the part side is longer than the inner length in the section in the arrangement direction. A cover for a loom opening device.   The cover of the opening device for a loom according to claim 1, wherein the plurality of bellows-like portions include a plurality of independent bellows-like portions provided independently of each other corresponding to each insertion opening.   The plurality of bellows-like portions are formed from one bellows-like seat connected to the base and the plurality of independent bellows-like portions formed respectively connected to the bellows-like seat, and the bellows-like seat and each independent bellows-like portion. The cover of the opening device of the loom according to claim 2, wherein and correspond to the respective insertion openings.   The independent bellows-like portion corresponding to at least one insertion opening located on the end side in the arrangement direction is characterized in that the insertion opening is arranged on the inner side of the central position in the arrangement direction. The cover of the opening device of the loom according to claim 2 or claim 3.

Images