JP5095154B2 - Industrial textile belt joint slider - Google Patents

Description

  The present invention mainly aims at facilitating the work of engaging the joint loops arranged at each end by abutting both ends in the longitudinal direction when joining the paper making dryer canvas endlessly. As long as the slider of the present invention has the structural requirements for the joint, the joint work for other textile belts such as other papermaking cloths, conveyor belts, traveling type filter cloths, etc. It relates to a slider that can also be applied.

  The paper dryer dryer canvas (hereinafter simply referred to as “canvas”) includes a joint in which a main body warp is folded to form a loop, and a spiral wire attached to an end. These loops or ring-shaped portions (hereinafter simply referred to as loops or loop portions) at both ends are abutted and meshed, and a joining core wire is inserted into the common hole to make the papermaking dryer canvas endless.

  In recent years, the widening of canvases and the miniaturization and density of loops have made it difficult to engage the loops when joining joints, so sliders have been adopted as one of the joining aids. .

  As an example of this type of slider, as in the past, there has been known a slider composed of a substrate, an intermediate plate, and an upper cover plate as in Patent Document 1. A tapered first passage is provided between the substrate and the intermediate plate, and a tapered second passage is provided between the intermediate plate and the upper cover plate. The two passages overlap each other when viewed perpendicular to the substrate and become narrower toward the tip, with an acute angle overlap. A surface is formed. The narrow portion of the overlap surface is raised or lowered so that both passages are integrated with the common passage.

  In some cases, the slider is provided with a member that squeezes a common surface in an extended portion of the narrow portion of the overlap surface, and the entire configuration has been used as a basic configuration of the slider. Since then, the specifications of industrial textile belts have been diversified along with the efficiency of manufacturing equipment including papermaking machines, the efficiency of conveying devices, and the quality of belt conveyed products, and the specifications of belt joints have also changed. For this reason, improvement of the structure which can respond also to a new joint specification is desired for a slider.

  Patent Document 2 discloses a slider for forming an endless base fabric by meshing coiled fastener element rows attached to both ends of a woven belt. Although the slider has a slightly different insertion type at the end of the fabric belt, the guiding path at the end of the fabric belt is similar to the configuration of Patent Document 1. However, in the invention of this document, the joint loop is a coiled fastener element row, and a pressure locking body is provided for the locking, and the pressure locking body has a spherical shape that contacts the element row. It is comprised from the body and the elastic body which pressurizes this.

Patent Document 3 discloses the invention of the coil fastener joint that is considered to be the object of the slider of Patent Document 2, so that this joint is intended to lock one synthetic resin wire in advance. A molded head is formed by pressing a portion corresponding to the molded head molded portion and bulging in the transverse direction of the monofilament. This coil is attached to the fabric in a stretched state within a range of 1 to 25% with respect to the reference length dimension at the time of molding, and there is no gap when the end portions are meshed with each other, so that the joint meshes with a so-called fitted state. It becomes. This coil fastener is a molded product that includes a meshing head formation. To that end, it requires a certain thickness and rigidity for pressure molding, so it is common to use a monofilament with a circular or elliptical cross section. I can ask.
JP 57-21594 A Japanese Patent No. 3080621 JP 2001-104018 A

  A recent canvas is a so-called warp loop joint in which warps are folded back to form joints provided at both ends in the longitudinal direction (warp direction), and then the inverted warp is bound into the main body structure. In addition, joint forms using monofilaments with high flatness are increasing.

  By the way, in a general warp loop joint, for example, one joint meshing loop is created using four adjacent warps. That is, in the woven belt end, among the four warps arranged from the warp a to the warp d, a loop is formed by the warp a, and the warp a is twisted and reversed, and then is bound into the structure of the warp b. The warp b is cut off in front of the terminal as much as the insertion of the warp a is accepted. Next, in order to hold the frontmost weft of the woven belt, the warp is held by the warp c, and the warp c is twisted and reversed, and is then stitched into the structure of the warp d. The warp d is excised in front of the terminal in the same manner as the warp b. Such a warp treatment is taken as a unit, and the required number of units are sequentially repeated in the width direction to form a canvas joint. In this case, one meshing loop is formed by the warp a for the four warps a to d. In this type of joint, the return warp tip of the loop is twisted and inserted into the adjacent warp structure, so that the loop is twisted. Further, the gap between the loops is equivalent to 3 pitches of warp, and when the two ends are brought into contact with each other, a gap corresponding to 1 pitch of the warp is generated between the engaged loops.

  Here, an example of the canvas targeted by the slider of the present invention and its joint will be described in detail with reference to the schematic diagrams of FIGS. If a monofilament having a high flatness is used for the warp of the canvas and the density of the warp is increased, the surface of the canvas (the surface in contact with the wet paper) becomes extremely smooth and the surface properties are improved. Furthermore, it is preferable to form a warp double weave structure in which two pairs of warps are structured so as to be stacked vertically in the thickness direction of the canvas, because wide loops without twist are arranged. That is, as shown in the cross-section P-P of FIG. 7 (A), the loop 38 formed by the warp 50 on the front surface side in the joint portion configuration is bound in the structure of the warp 51 on the back surface side that is vertically overlapped without twisting. be able to. The above-mentioned weft 54 at the forefront of the woven belt is held by a pair of adjacent warp yarns formed by binding and forming the same warp loop as shown in the cross section of the QQ portion in FIG. Will be done with warp. Therefore, in this case as well, one meshing loop is formed for four warps, but the gap between the loops is only one pitch of the warp, and the number of warp loops can be increased, so that the joint strength is increased. is there. FIGS. 7A to 7C schematically show the joint structure, and the length of folding the front side warp yarn into the back side warp structure is drawn short. Requires longer sections. Furthermore, in this case, a high-quality joint with a surface property that approximates the structure of the main body can be obtained by increasing the density so that flat monofilaments of warps are arranged without gaps as shown in FIG. That is, when the joint portions at both ends are abutted and the loops are meshed with each other, the gap between the warp loops at one end is filled with the loop at the other end so that there is no gap approximating the structure of the main body.

  However, when the canvas and the joint thereof having the flat cross section monofilaments arranged at high density on the warp as described above have the following specifications, it is inevitable that the above-mentioned known sliders cannot engage the loops, and it is unavoidable for manual work. There is a situation that was. That is, for example, an ultra-flat monofilament having a warp cross-sectional dimension of 1.0 mm in the canvas width direction and 0.25 mm in the canvas thickness direction is used, the canvas thickness is about 1.7 mm, and the loop length at both ends is 2.5 mm. If an attempt is made to join a joint of a canvas with a known level using the above-mentioned known slider, the meshing is performed with no gap between the loops, and therefore, mismatching of the meshing occurs.

  In addition, the slider of Patent Document 1 is basically a system in which the meshing starts from the tip of the loop, and a fitting joint loop that does not cause a gap in the loop is not assumed. Consistency occurs. That is, in the portion where the loop portions are overlapped, a phenomenon in which the ends of the loops collide with each other or meshing mismatch occurs, and the thin loop portions formed of the super flat yarn are deformed and crushed. This type of slider is originally a metal hook that is precisely arranged at a predetermined pitch, or a warp loop joint of a woven belt, which has a relatively wide gap between the loops and a monofilament warp joint with a circular cross section that provides rigidity to the loop. Applies to With such a metal hook or warp loop joint, even if the tips of the loop come into contact with each other at the time of the engagement, it is considered that the engagement can proceed without any problem due to the rigidity and slippage of the loop.

  When a slider as in Patent Document 2 is used, each of the canvas end portions joins in the vertical direction and meshing from the side surface of the loop starts, so that the tip of the loop does not collapse. However, since the loop cross-section is not formed in advance so as to be easily meshed like the coiled fastener element array, the positions of the loops are not aligned or insufficiently meshed. Furthermore, the pressure squeezing of the spherical body caused a pressure dent in the thin loop, and the loop was deformed.

  As described above, in the conventional joint slider, the joint loop is a monofilament having a thin cross-section and is flat, wide and easily deformed, and in the case of a woven warp loop, it cannot be properly meshed. Despite the strong demand for a slider that is suitable for a fitting joint that has a highly accurate and uniform loop pitch and that almost fills the gap between the loops of both ends, such a joint is easy and appropriate. Since a slider that can be engaged with each other was not realized, it was inevitably a manual joining operation. As a result, not only labor and time are required for the joining work, but also fingers may be injured at the edge of the side surface of the thin loop.

  The present invention provides a slider capable of mechanically, easily, and appropriately engaging a loop even with the above-described joint specification. Note that the specifications and specific dimensions of the canvas used in the above description are examples showing images, and are not intended to limit the use of the fabric belt and the specific dimensions.

The slider of the present invention is a slider for abutting a large number of joint loops with flat cross-sectional monofilaments formed at both ends in the longitudinal direction of an industrial fabric belt and engaging the loops substantially without gaps. The slider has an integral structure in which the upper member and the lower member sandwich the intermediate partition portion, and two inlets, an upper inlet and a lower inlet for inserting both ends of the fabric belt, are inserted at the front end of the slider in the traveling direction. These two inlets are partially overlapped in the vertical direction corresponding to the meshing dimensions of the loop, and are formed at the rear end of the two inlets and the slider. In the slider in which a joining portion where the loop meshes is formed in the middle of the loop passage communicating with the formed one outlet,
From the lower inlet to the outlet, the upper surface of the lower member is communicated in a horizontal straight shape so as to form a lower wall surface of the loop passage, and the height of the loop passage from the junction to the outlet is set to the fabric. The size is slightly larger than the thickness of both ends of the belt, and the lower surface of the upper member communicates from the upper inlet to the outlet so as to form the upper wall surface in the loop passage. The cross-sectional line is a straight line with a predetermined length from the upper entrance to the junction, and is then inclined with a downward slope immediately before the junction, and a horizontal line immediately after the junction to the outlet is inclined with the downward slope. A line and a horizontal line from immediately after the merging portion to the outlet are smoothly connected with an arc having a center above the merging portion and a radius of 15 to 25 mm and an arc angle of 10 to 30 degrees, and the upper member is joined to the merging portion. Wherein the allowed overhang as a free end from toward the outlet.

  The reason why the gap between the loops is “substantially no gap” is that an industrial textile belt using a slider is essentially impossible to finish with high dimensional accuracy like precision parts. This is because even if designed, a small gap is actually generated between the loops due to slight variations in dimensions. The gap between the loops is 0.1 mm or less, the overlapping dimension at the upper and lower positions is 80 to 100% of the meshing dimension, and the height of the loop passage from the joining part to the outlet is 110 of the thickness at both ends of the woven belt. It is good to set it to -130%.

  Further, in the slider of the present invention, in the cross section of the flat cross section monofilament, the ratio of the dimension of the long side corresponding to the width direction of the industrial textile belt to the dimension of the short side corresponding to the thickness direction is 3: 1. -5: 1, and the loop is formed by folding warp yarns at both ends of the woven belt. Here, for the sake of convenience, “long side” and “short side” are used, but the shape of the flat cross section of the monofilament means a rectangle or is not limited to a rectangle. Further, the long side and the short side indicate the values of the maximum portions of the respective dimensions.

  Furthermore, the slider according to the present invention is characterized in that at least the vicinity of the joining portion of the upper member is a transparent member.

Furthermore, the slider of the present invention is characterized in that the material of the slider main body (upper member, lower member and partition) is a synthetic resin.

  Furthermore, the slider of the present invention is such that at least the component of the inclination angle of the upper wall surface is added to the downward inclination component toward the exit direction at the site where the cross-sectional line of the upper wall surface in the fabric belt traveling direction is inclined. It also has a downward slope component toward the loop side of the end portion of the woven belt in a direction orthogonal to the direction.

  Furthermore, the slider of the present invention is the slider according to any one of claims 1 to 5, wherein the upper member, the lower member, and the partition part are configured so that the fabric belt travels in a loop passage from the lower inlet to the outlet. It is a slider characterized by being arranged symmetrically with respect to the central axis of the directional section.

  Furthermore, the slider of the present invention is characterized in that a handle or a knob is attached to the upper surface of the upper member.

  With the slider of the present invention, even a fitting loop joint with a thin joint loop using a flat monofilament and a densely arranged loop with almost no gap between the loops can be easily and appropriately used. In addition, the loop meshing operation can be completed in a short time.

  In addition, this slider is made of a transparent resin, and by attaching a handle etc., the loop is mechanically engaged in order by simply moving forward while confirming the engagement state, so there is no damage to the loop. There is no deformation and fingers are not injured.

  The present inventors have studied a slider that enables easy and reliable mechanical engagement of loops even in the case of the joint specifications described above.

  In particular, we examined the loop behavior up to the meshing of the loop when the meshing of the loop was done manually. Although the meshing of the loops at both ends is a fitting type, in addition to the fact that the loop pitch is not highly accurate and uniform, there is also a fabric setting in which the loop density exceeds 100% in the calculation when it is meshed. An operation for forcibly pushing the end loop between the other end loops is also required. In this case, it is impossible to put the both ends of the canvas on the same horizontal plane and make the loops close to each other and mesh with each other. In view of this, it was decided to engage with each other by positioning it in the vertical direction with the loop lengths at both ends of the canvas overlapping each other. However, even when the loop was actually pressed vertically with a finger, the loop width did not fit slightly in the gap between the other loops, and it often collapsed or deformed.

  However, as the skill of manual work is accumulated, it has been found that a method of inserting the loop in the width direction of the canvas by using not only the vertical force by the fingertip but also the horizontal direction and the component force in the loop width direction is preferable. The reason for this is that the loop is a flat yarn, so that the tip of the loop is linear in the width direction, and the side of the loop is externally shaped with the same dimensions as the flat yarn width from the front side to the back side of the canvas. Therefore, there is no roundness for smooth meshing.

  Therefore, it has also been found that in this case, it is best to push the loop vertically while inserting the loop obliquely. Furthermore, the inclination angle α (see FIG. 5) when the inserted loop first contacts the mating loop varies slightly depending on the loop width, thickness, dimensions of the gap between the loops, and the loop material. However, it has been found that α = 10 to 35 °, more preferably α = 15 to 30 °. It has also been found that it is necessary to change α to 0 degrees very smoothly without weakly changing the angle from the start of meshing until the meshing is almost completed, but rather reducing the rate of change.

  From this result, it was recalled that the cross-sectional line in the advancing direction is formed in an arc shape on the upper wall surface of the loop passage of the merging portion 27 and is continuously shifted from this arc to a tangent line of α = 0 degrees. The arcuate curve portion may be, for example, an elliptical arc as long as it satisfies the inclination angle of the loop and the gradual decrease due to the slide progress, but an arc is preferable in consideration of slider fabrication.

  After pushing the loop in this way, even the gap between the loops slightly narrower than the loop width fits well due to the elasticity in the width direction due to the thin loop thickness, and conversely it is difficult to disengage. I understand.

As a result of the above study, do not use a squeezing device that positively inserts and presses a loop from the vertical direction,
1) Select an appropriate curvature and passage height in the loop passage in the vicinity where both ends meet, and insert the side end of the loop on one end side obliquely into the gap between the loops on the other end side at an optimum angle. ,And,
2) In order to reach full engagement from the half-engaged state of each loop, the height of the passage is gradually reduced to the fabric belt thickness dimension,
3) Using the vertical component force applied to the half-engaged loop as the slider moves horizontally, press gently on a flat surface to complete the meshing.
I recalled that.

  Then, the slider prototype was repeated, and in particular, the shape of the upper wall surface of the loop passage of the junction 27 was optimized, and the slider of the present invention was obtained.

  An example of the configuration of the slider of the present invention will be described with reference to FIGS. 1A is a plan view of the slider, FIG. 1B is a side view thereof, FIG. 2 is a front view as viewed from the direction A in FIG. 1, FIGS. 3A to 3C, and FIG. (B) is sectional drawing of aa ', bb', cc ', xx', and yy 'in FIG. 1, respectively.

  The slider 10 has an integral structure in which the upper member 12 and the lower member 13 sandwich the middle partition portion 14. Two groove-shaped inlets 23 and 24 for inserting the respective ends of the fabric belt separately are provided at the leading end of the slider 10 in the traveling direction. The respective inlets 23 and 24 are shifted in height in the vertical direction on the front end face 22 of the slider 10 and are brought close to each other in the horizontal direction so as to overlap each other in the vertical position substantially by the meshing dimensions of the loops at both ends. It is arranged.

  The two inlets 23 and 24 are open at the side ends so that the opening shape is a horizontally elongated shape and the fabric belt body is allowed to pass through. Hereinafter, the two inlets 23 and 24 may be referred to as an upper inlet 23 and a lower inlet 24 for convenience. The upper inlet 23 is formed by the upper member 12 and the partition 14, and the lower inlet 24 is formed by the lower member 13 and the partition 14. One horizontally elongated outlet 26 is provided on the opposite side of the two inlets 23 and 24, that is, on the rear end of the slider 10. A state in which both ends of the fabric belt are separately inserted from the two inlets 23 and 24, and both ends of the fabric belt are smoothly joined by a joining portion 27 provided in the middle, and the loops at both ends are engaged with each other. The two loop passages 32 a and 32 b are communicated with the outlet 26 so that the outlet 26 can pass through.

  From the lower inlet 24 to the outlet 26, a loop passage 32a is communicated in a horizontal straight shape. The height of the loop passage 32a from the merging portion 27 to the outlet 26 is set to be slightly larger than the thickness of both ends of the woven belt. As described above, since the force for sliding the slider 10 horizontally is applied to the complete engagement of the loops at both ends, it is preferable to minimize the slide resistance due to other factors. From this point of view, one loop passage 32a (the side from the lower inlet 24 to the outlet 26 in the figure) of the two loop passages 32a and 32b into which both ends of the woven belt are inserted and guided is formed into a straight shape and slide resistance is made. Decreased.

  An upper wall surface 29 in the upper loop passage 32 b is formed on the lower surface of the upper member 12. A cross section line (contour line) along the fabric belt traveling direction of the upper wall surface 29 is a horizontal line from the upper inlet 23 to the junction portion 27. Then, it is made to incline with the downward gradient 30 just before the said junction part 27. FIG. Between the horizon and the downward slope 30 slope may be a discontinuous slope change where the angle changes suddenly, or a continuous slope change where the angle changes smoothly. A horizontal line from immediately after the merging portion 27 to the outlet 26 is a horizontal line, and an inclined line of the downward gradient 30 and a horizontal line from immediately after the merging portion 27 to the outlet 26 have a center above the merging portion 27. It was smoothly continuous with an arc 31 having a radius of 15 to 25 mm (indicated by “R” in the figure) and an arc angle of 10 to 30 degrees. That is, the end point 33 of the arc 31 is the final point of the merging portion 27, and is also the starting point of the loop passage 32c that leads to the outlet 26 after merging. The arc shape at this point and the height of the loop passage 32c are extremely important in the meshing of the loop, and the meshing is almost completed by the passage of this point. The lower wall surface of the upper loop passage 32 b continues to the lower wall surface 28 of the lower member 13 via the descending step portion 34.

  The joint slider of the present invention is configured as described above, and the engagement of joint loops using this slider will be described below with reference to FIG. FIG. 5 is a view schematically showing a state where one fabric belt end 38 is inserted into the loop 38 at the other fabric belt end in the joining portion 27 of the slider 10. A portion of one loop 38 that is thinly painted at two locations is a flat cross section of a monofilament that is the loop 38.

  The arc 31 is inserted so that the side surface 40 of the loop 38 at the end of the fabric belt inserted from the upper inlet 23 is inserted into the gap between the other loop 38 inserted from the lower inlet 24 with the loop edge 41 at the head from the upper side. It is an important shape to insert into. The end portion of the fabric belt is in contact with the lower wall surface of the loop passage 32b at the starting point of the descending slope 30 in the upper loop passage 32b during the advance operation of the slider 10, and at the junction 27, the end of the loop passage 32b. It passes through the slider 10 in contact with the upper wall surface 29.

  Therefore, in the joining portion 27, the loop side surface portion at the end of the woven belt inserted from the upper inlet 23 is arranged radially along the arc 31, and sequentially into the gap between the other loops 38 inserted from the lower inlet 24, Inserted to be inserted at an appropriate angle. At this time, the mutual loops 38 that start contact temporarily undergo some elastic deformation, but when the engagement starts as the slider 10 progresses, the loop 38 returns to its original shape.

  The interlocked loop 38 is difficult to come off due to the flat loop shape and its fitting type structure, and the slight shift in the loop pitch 45 is absorbed by the elasticity based on the flat loop shape, and the meshing progresses sequentially. Will do.

  If a corner portion is formed in the joining portion 27 of the loop passages 32a and 32b instead of the arc 31, the side edge of the loop 38 is caught. If the arc 31 is too gentle with a radius of curvature equal to or greater than the arc radius setting range, the loop 38 inserted from the upper inlet 23 comes close to the gap between the mating loops 38 at a low inclination angle. The phenomenon where the side loop 38 and the side faces each other frequently occurs.

  Further, if the arc 31 is a sharp curve with a small curvature radius equal to or less than the arc radius setting range, although the meshing itself is possible, the woven belt is a woven belt having high industrial rigidity. It was found that the slide resistance of the slider 10 increased abnormally and could not be used. Of course, the setting of the arc angle is also important for the arc. If the arc angle is smaller than the set range, the loop 38 is easily caught on the arc 31. If the arc angle is larger than that, the slide resistance increases and the slider 10 is advanced. I can't do that.

  Thus, in the meshing of the joint loop 38 of the specification described above, the loop side surface portion is inserted obliquely from the edge portion of the side surface portion into the gap between the mating loops, instead of using the fitting pressing device. When the insertion is completed, the meshing is almost completed, and thereafter, the meshed loop can be shaped and adjusted by the surface pressure by the vertical component of the sliding force.

  The upper member 12 of the loop passage 32b that communicates from the upper inlet 23 to the outlet 26 is fixedly supported only by the partition 14 and extends to the outlet 26 as a free end. The engagement of the loops 38 is finally shaped by a predetermined height of the loop passage 32c corresponding to the protruding portion of the upper member 12.

  At this time, even if a portion where the loops 38 are not completely engaged with each other occurs, the overhanging portion of the upper member 12 can elastically move up and down according to the thickness of the fabric belt, and the loop passage 32c. Since the height dimension is flexible, the effect of feeding to the outlet 26 can be maintained without damaging the loop 38. Furthermore, if the handle or knob 35 is attached to the free end and the slide is advanced while adjusting the height of the loop passage 32c at the slider free end, the surface pressure can be adjusted. This is preferable because shaping correction of a shallow part can be performed. If the surface pressure is adjusted, there is no fear that the loop 38 is recessed and deformed.

  Further, since the joining portion 27 is made transparent, the meshing state can be visually confirmed, so that the slide speed of the slider 10 can be adjusted according to the meshing state.

  Furthermore, when the main body material of the slider 10 is a transparent and lightweight member such as an acrylic resin, not only the above-described merging portion 27 can be visually confirmed, but also the slider main body becomes lighter and handling properties are improved.

  In addition, in the site | part which inclined the cross-sectional line of the fabric belt advancing direction of the said upper wall surface, at least the component of the inclination angle of the upper wall surface 29 is added to the downward inclination component toward the exit 26 direction like FIG. In addition, if the inclination is such that it has a downward inclination component of the angle θ toward the loop 38 at the end of the fabric belt in a direction orthogonal to the traveling direction of the fabric belt, in other words, the tip side is lower than the base end side of the loop 38. When the upper wall surface 29 is inclined at an angle θ, the loop 38 at the end of the fabric belt inserted from the upper inlet 23 is twisted from the edge near the tip of the loop 38 into the gap between the counterpart loops 38. Depending on the size of the loop 38 and its elasticity, it is possible to engage more preferably.

  Up to this point, the case where the end loop 38 inserted from the upper inlet 23 is inserted so as to be inserted obliquely has been described. However, the configurations of the upper member 12, the lower member 13, and the partitioning portion 14 are the same as those described above. The upper member 12, the lower member 13, and the middle with respect to the central axis CC (refer to FIG. 3C) of the cross section in the fabric belt traveling direction of the loop passages 32 a and 32 c from the side inlet 24 to the outlet 26. It is also possible to insert the loop 38 obliquely from the lower side by arranging the configuration of the partition part 14 symmetrically in the vertical direction. However, it goes without saying that the handle is mounted on the upper portion of the slider 10.

  The above-described configuration of the slider 10 of the present invention is an industrial woven belt having flat joint monofilament loops 38 that are warp yarns at both ends, and the loops 38 are engaged substantially without gaps. It is effective in the case of matching, but in particular, in the cross-sectional dimension of the flat cross-sectional monofilament, the super-flat shape having a woven belt width direction dimension of 0.8 to 1.3 mm and a woven belt thickness direction dimension of 0.2 to 0.35 mm. The monofilament loop 38 is particularly suitable for a mating type engagement.

When the slider 10 as shown in FIG. 6 is made of polycarbonate resin, a warp loop is formed on a canvas whose specifications are shown in Table 1, and a loop meshing test is conducted, it was found that the slider 10 can be operated extremely smoothly and properly. . 6A to 6C, numerals of dimensions of the respective parts are entered, but the dimension unit is millimeter (mm).

  The present invention is also applicable to sliders used for joint joining of industrial textile belts such as papermaking cloths, conveyor belts, and traveling type filter cloths.

(A) is a top view of a slider, (B) is the side view. The front view of the slider seen from the A direction in FIG. FIGS. 4A to 4C are cross-sectional views taken along lines a-a ′, b-b ′, and c-c ′ in FIG. 1, respectively. 1A is a cross-sectional view taken along line xx ′ in FIG. 1A, FIG. 1B is a cross-sectional view taken along line yy ′ in FIG. 1A, and FIG. The yy 'line arrow directional cross-sectional view of A). The top view which showed typically the mesh | engagement of the loops in the junction part of a slider. The Example of the slider of this invention is shown, (A) is a top view, (B) is a side view, (C) is a front view. The canvas and its joint are schematically shown. (A) is a cross-sectional view of the PP portion of (C), (B) is a cross-sectional view of the Q-Q portion of (C), and (C) is a plan view. .

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Slider 12 Upper member 13 Lower member 14 Middle partition part 22 Front end surface 23 Upper side inlet 24 Lower side inlet 25 Opposite side end surface 26 Outlet 27 Merge part 28 Lower wall surface 29 Upper wall surface 30 Down slope 31 Arc 32a-32c Loop passage 33 Arc End point 34 descending step 35 knob 38 loop 40 side surface 41 loop edge 45 loop pitch 50 warp 51 on the front side warp 54 on the back side weft

Claims (7)

A slider for abutting a large number of joint loops with flat cross-sectional monofilaments formed at both ends in the longitudinal direction of an industrial fabric belt to engage each other with substantially no gap between the loops, the slider being an upper member And the lower member form an integral structure sandwiching the middle partition portion, and two inlets, an upper inlet and a lower inlet for inserting both end portions of the fabric belt, at the front end of the slider in the traveling direction are bordered by the middle partition portion. The two inlets are vertically formed at different heights, and the two inlets are partially overlapped in the vertical direction corresponding to the meshing dimensions of the loop. The two inlets and one outlet formed at the rear end of the slider In the slider in which a joining portion where the loop meshes is formed in the middle of the loop passage communicating with the
From the lower inlet to the outlet, the upper surface of the lower member is communicated in a horizontal straight shape so as to form a lower wall surface of the loop passage, and the height of the loop passage from the junction to the outlet is set to the fabric. The size is slightly larger than the thickness of both ends of the belt, and the lower surface of the upper member communicates from the upper inlet to the outlet so as to form the upper wall surface in the loop passage. The cross-sectional line is a straight line with a predetermined length from the upper entrance to the junction, and is then inclined with a downward slope immediately before the junction, and a horizontal line immediately after the junction to the outlet is inclined with the downward slope. A line and a horizontal line from immediately after the merging portion to the outlet are smoothly connected with an arc having a center above the merging portion and a radius of 15 to 25 mm and an arc angle of 10 to 30 degrees, and the upper member is joined to the merging portion. Slider, characterized in that were flared as a free end from toward the outlet.   In the cross section of the flat cross section monofilament, the ratio of the dimension of the long side corresponding to the width direction of the industrial textile belt and the dimension of the short side corresponding to the thickness direction is 3: 1 to 5: 1, The slider according to claim 1, wherein the loop is formed by folding back warp yarns at both ends of the woven belt.   The slider according to claim 1, wherein at least the vicinity of the joining portion of the slider is a transparent member. The slider according to any one of claims 1 to 3, wherein the material of the main body having the upper member, the lower member, and the partitioning portion of the slider is a synthetic resin.   In the portion where the cross section line of the upper wall surface in the traveling direction of the fabric belt is inclined, at least the component of the inclination angle of the upper wall surface is in the direction orthogonal to the traveling direction of the fabric belt in addition to the downward inclination component toward the exit direction. The slider according to any one of claims 1 to 4, further comprising a downward slope component toward the loop side of the end portion.   The slider according to any one of claims 1 to 5, wherein the upper member, the lower member, and the partition portion are configured with respect to a central axis of a cross section in the traveling direction of the fabric belt of the loop passage from the lower inlet to the outlet. A slider characterized by being arranged vertically.   The slider according to any one of claims 1 to 6, wherein a handle or a knob is attached to an upper surface of the upper member.

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