JP4091141B2 - Control device - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a heald control device.
According to one aspect of the invention, a heald control device comprising at least one elongate heald bar movable longitudinally between first and second limits of linear movement, and parallel to the longitudinal axis of the heald bar And a heald rod drive means that is continuously reciprocated along a simple path. The heald rod is biased toward the first limit of reciprocation so as to be disposed at the first throat position. The heald rod and the driving means are engaged when the driving means moves relative to the heald rod along the path in a direction toward the second limit of the reciprocating motion, Cooperating drive latch means for automatically disengaging when moving relative to the heald rod along the path in a direction towards one limit. A drive latch control means is disposed adjacent to the first limit of the reciprocating motion to cause the cooperative drive latch means to be hooked or disconnected. The drive latch control means continues along the path to move the heald rod from a first limit of the reciprocating motion to an intermediate limit position disposed between the first and second limits of the reciprocating motion. Reciprocally. When the hold bar is maintained in the intermediate position, the cooperative drive latch means engages the drive means to move the heald bar from the intermediate position toward a second limit of reciprocation. In order to be able to selectively hold the heald bar in the intermediate position, selectively actuable stationary latch means acting on the heald bar are provided.
[0002]
DETAILED DESCRIPTION OF THE INVENTION
Various aspects of the invention are described below with reference to the accompanying drawings.
FIG. 1 is a schematic side view showing the main operation of the mechanism according to the present invention.
FIG. 2 is a more detailed side view of the first embodiment according to the present invention.
FIG. 3 is an enlarged schematic side view showing a part of the modified holding means incorporated in the first embodiment.
FIG. 4 is a schematic perspective view showing a lower portion of the mechanism of FIG.
FIG. 5 is a schematic diagram showing the relative movement of the components shown in FIG.
FIG. 6 is a side view of a part of the second embodiment according to the present invention in more detail.
FIG. 7 is a view similar to FIG. 6 showing selection of the heald bar.
FIG. 8 is a more detailed side view showing the third embodiment according to the present invention.
9 and 10 are schematic diagrams showing the operation of the components shown in FIG.
FIG. 11 is a more detailed side view showing the fourth embodiment according to the present invention.
FIG. 12 is a more detailed side view showing the fifth embodiment according to the present invention.
FIG. 13 is a side view showing a sixth embodiment according to the present invention.
14-16 are enlarged side views showing a portion of the mechanism according to the embodiment depicted in FIG. 13 shown in different operating positions.
FIG. 17 is an enlarged side view similar to FIGS. 14 to 16 showing a seventh embodiment according to the present invention.
18, 19 and 20 are enlarged side views showing a part of the mechanism according to the eighth embodiment of the present invention shown in different operating positions.
FIG. 21 is a schematic diagram showing the relative position between the holding means and the heald bar latch means.
FIG. 22 is a side view showing a part of the heald rod according to the present invention.
[0003]
Referring initially to FIG. 1, there are a plurality of elongated heald bars or hooks 11 (only one is visible in FIG. 1), each of which is movable longitudinally between a lower limit HLL and an upper limit HUL of reciprocation. A schematic diagram of the heald control device 10 is shown. Each heald bar 11 is connected to the heald eye 12 by a thread 14 at its lower end. The heald eye 12 is connected to the device frame 15 by a thread 16 and a spring 17.
[0004]
The heald rod 11 has a fastener structure that is brought into contact with the second drive drive 50 that reciprocates.
[0005]
The second drive drive 50 reciprocates between the lower limit position SLL and the upper limit position SUL.
[0006]
The reciprocating operation of the second drive drive means 50 reciprocates the heald rod 11 between its lower limit position HLL and the intermediate position IP.
[0007]
It is preferable that the lower limit position HLL is selected corresponding to the lower mouth position of the heald eye 12.
[0008]
First heald rod drive means for moving the heald rod 11 from the intermediate position IP toward its upper limit position HUL and then moving the heald rod 11 from its upper limit position HUL toward its lower limit position HLL. 30 is provided.
[0009]
The heald rod drive means 30 preferably includes a pair of knives 31 and 32 that reciprocate along a linear path parallel to the longitudinal axis of the heald rod 11. These knives 31 and 32 are disposed on the opposite side of the heald rod 11 and reciprocate continuously between the upper limit KUL and the lower limit KLL of the reciprocating operation while shifting the phase by 180 °. Generally, each knife 31, 32 is elongated and extends along the row direction of the heald rods 11 so that the heald rods can be moved individually within each row. Typically, there are a plurality of rows of heald bars and corresponding knives.
[0010]
Each of the knives 31 and 32 is provided with a latch means 34 which cooperates with a latch means 35 formed on the heald rod 11.
[0011]
Thus, when the heald bar 11 is held stationary, during the reciprocating movement of the knives 31, 32, the cooperating latch means 34, 35 are in the longitudinal direction of the heald bar 11 relative to each other. Move relative to. The cooperating latch means 34 and 35 are moved by the knife 31 or the knife 32 to which the latch means 34 engaged is mounted when the latch means 34 moves in the direction toward the upper limit HUL with respect to the heald rod 11. It is formed to engage with the latch means 35 to support the hold bar 11.
[0012]
The cooperating latch means 34 and 35 are also moved (when the cooperating latch means 34 and 35 are engaged) when the latch means 34 moves relative to the heald rod 11 in the direction toward the lower limit HLL. Are provided so that either the engagement with the latch means 35 is automatically disengaged or the engagement with the latch means 35 is not engaged.
[0013]
Also, the latch means 34, 35 are arranged such that when the latch means 34 on one knife is engaged with the latch means 35, the latch means 34 on the other knife is disengaged from the latch means 35. Is also provided. Because of this feature, when the heald bar 11 is lowered by one knife that moves toward its KLL position, when the two knives pass each other, the other rising knife that moves toward that KUL position. It is prevented from being engaged and moved.
[0014]
The latch engagement control means 40 connected to the drive means 50 is disposed in the lower region of the reciprocation path of the knives 31 and 32 adjacent to the lower limit KLL.
[0015]
Latch engagement control for controlling the engagement of the latch means 34 on one of the knives 31 and 32 with the latch means 35 on the heald bar 11 when the hold bar 11 is held at its intermediate position IP. Means 40 are provided.
[0016]
The reciprocating motion of the second drive drive 50 is provided such that one or the other knife 31, 32 is arranged in the region of their KLL limit position, while the heald rod 11 is raised to its intermediate position IP. Yes. In this method, the latch means 34 formed on one or the other knife 31, 32 moves the latch means 35 when the knife 31 or knife 32 moves in the direction of the KUL position with respect to the heald rod 11. Arranged under the latch means 35 in preparation for engagement.
[0017]
When the heald rod 11 is held at its intermediate position IP, the latch engagement control means 40 is configured so that the latching means 34 and 35 that cooperate with each other have their upper limit position HUL by means of the corresponding knives 31 and 32. It is provided so that it may engage so that it may move toward. The latch engagement control means 40 is also provided to prevent the latch means 34 and 35 from engaging when the heald rod 11 is not held at its intermediate position IP. In such a situation, the heald rod 11 moves together with the second driving means 50 toward the lower limit position HLL and is not raised toward the upper limit position HUL.
[0018]
Thus, the arrows RM between their HLL and IP positions until all the heald bars 11 in the row associated with the knives 31 and 32 are continuously held by their drive means 50 at their intermediate position IP. This is accomplished by the selectively operable heald bar holding means 51 as indicated by. During operation, the holding means 51 cooperates to engage the IP latch means 52 and the holding latch means 53 formed on the heald rod 11 to prevent the movement of the heald rod 11 toward the lower limit position HLL. . The IP latch means 52 and the holding latch means 53 are provided so as to be automatically disengaged when the heald rod 11 is moved by the knives 31 and 32 toward the upper limit position HUL.
[0019]
The hold bar 11 includes at least one US latch means 56 disposed between the IP latch means 52 and the latch means 35. The US latch means 56 also cooperates with the holding latch means 53 to hold the heald rod 11 at or near the HUL position so as to define the upper shed position US for the heald eye 12. By preparing a plurality of US latching means spaced along the heald bar 11, the heald bar 2 can be selectively held at different heights, and different gutter heights can be easily selected. it can.
[0020]
The heald control device 100 according to the first embodiment of the present invention is shown in more detail in FIGS.
[0021]
In the heald control device 100 according to this embodiment, a plurality of rows of heald rods 11 (only three are shown in FIG. 2) are provided, and each row is driven by a pair of knives 31 and 32. . Each knife 31, 32 comprises a rigid elongated body 160 that carries a plurality of latch means 34. Each latch means 34 is preferably made of a plastic material and comprises a latch body 161 mounted on a resilient support arm 162 to be biased outwardly toward and in contact with the associated heald rod 11. ing. The cooperative latch means 35 of each heald bar 11 is defined by a hole 135 into which the latch body 161 urged by the arm 162 is inserted.
[0022]
The latch body 161 has an upward latch shoulder 165 formed to cooperate with the downward latch shoulder 166 of the heald rod 11 to prevent relative lateral movement therebetween. Is preferred. In the example shown, this is achieved by shoulders 165, 166 having a V-shaped cross section. The main body 161 is preferably configured such that its outer side surface 168 is substantially flush with the side surface of the heald rod 11 conveyed thereby.
[0023]
  The second drive means 50 includes an elongated body 150 having a pair of upwardly projecting flanges 152 extending along the opposite side of the body 150.In this embodiment, a flange 152 provided on the elongated body 150 serves as the drive latch control means 40.
[0024]
Each flange 152 includes a chamfered edge 153 that functions as a cam surface for deflecting the latch body 161 away from the associated heald bar 11 inward. The flange 152 is sufficiently spaced to allow both opposing latch bodies 161 to be placed between them when fully deflected inward. The elongated body 150 is supported to reciprocate within a frame (not shown) for movement between upper and lower positions SUL, SLL, respectively.
[0025]
The elongate body 150 is placed directly under each knife 31, 32 and both of the opposing latch bodies 161 when the body 150 is placed in its upper position SUL and the knife is placed in the lower position KLL. The rows are arranged so as to be arranged between the flanges 152 (FIG. 5A).
[0026]
A series of vertical grooves 156 are provided on the elongated side surfaces of the outer side of the main body 150, and each groove 156 slidably receives a respective heald rod 11.
[0027]
Each heald bar 11 includes a shoulder 120 that forms a fastener 20, and each shoulder is biased to engage a contact shoulder 121 formed on the body 150. When these shoulders 120, 121 abut, the latch means 35 (in the form of a hole 135 in FIG. 2) is disposed below the flange 152. Therefore, when arranged at this position, the latch means 34 is prevented from engaging with the latch means 35 for raising the heald rod 11.
[0028]
If the heald bar 11 is selected to rise to its upper lip position, the heald bar 11 is held in its IP position. Therefore, when the main body 150 moves toward the SLL position and the latch body 161 comes out between the flanges 152 (FIG. 5B), the latch hole 135 is exposed. Accordingly, the latch body 161 moves outward, contacts the heald bar 11 and when the knife 31 or knife 32 is raised, the associated latch body 161 carried thereby moves within the hole 135 of the selected heald bar 11. And raise them to the upper position HUL.
[0029]
If the heald bar 11 is not selected to rise to its upper lip position, it is not held in its IP position. Thus, the heald rod 11 is held in contact with the body 150 as it moves to its lower position SLL, and the corresponding hole 135 in the heald rod 11 is removed from the latch body 165 as it exits the body 150. The shielded state is maintained (FIG. 5C).
[0030]
The heald rod holding means 51 for each heald rod 11 in the heald control device 100 according to the first embodiment includes a latch body 153 formed in a hook shape conveyed by the elastic arm 154. The arm 154 is fixed to the printed wiring board 180 so that the latch body 153 is biased to a non-latching position near the wiring board 180 where the latch body 153 cannot be hooked with the latch means formed on the heald rod 11. Further, it is made of an elastic material. The latch body 153 is selectively moved to a latch position arranged in the movement path of the latch means formed in the heald rod 11 so as to be distant from the wiring board 180 and to be engaged therewith.
[0031]
The latch body 153 is moved to the latch position by the electromagnet 182 mounted on the printed wiring board 180 that cooperates with the permanent magnet 184 mounted on the arm 154. When the electromagnet 182 is excited, it repels the permanent magnet 184 to its latched position. As illustrated, the permanent magnet 182 is preferably formed in an annular shape having a central hole 186 into which the magnet 184 is inserted when the latch body 153 is in the non-latching position.
[0032]
Alternatively, the arm 154 may be provided to bias the latch body 153 to its latched position, and the electromagnet 182 directs the permanent magnet to its unlatched position when actuated. It may be provided to suck in order to move.
[0033]
In other variations of the permanent magnet, it may be selectively drivable to positively move the latch body 153 to both its latched and unlatched positions. In such a device, the arm 154 need not be formed of an elastic material.
[0034]
As shown in FIG. 3, the electromagnet 182 may be disposed above the permanent magnet 184 disposed on the arm 154 and the substrate 180.
[0035]
Each magnet 184 is preferably surrounded by a soft iron annular shroud 186 that is in magnetic contact with the magnet 184. A shroud 186 is provided to route the magnetic flux, thereby providing a stronger attraction / repulsion force between the electromagnet 182 and the magnet 184. The shroud also functions to block stray magnetic flux from passing through the vicinity of the electromagnet 182, thereby enabling the electromagnets to be arranged at close intervals. In this mechanism shown in FIG. 2, the shroud 186 may be provided on the arm 154 so as to surround the magnet 184.
[0036]
Each latch body 153 is also assumed to be moved between its latched position and non-latched position by other electrical drive means such as, for example, an electrostrictive strip.
[0037]
The circuit board 180 extends along the row 11 of each heald bar and conveys a latch body to each heald bar 11 in the row. The corresponding electromagnets 184 are preferably arranged in a staggered manner so that the adjacent latch bodies 153 can be arranged at close intervals. Each circuit board 180 is supported by a rigid support frame 187 installed on the main frame of the mechanism. The lower cross member 188 preferably carries a separate guide 189 for guiding the longitudinal movement of each heald bar 11.
[0038]
The latch body 153 connected to each heald bar 11 functions to maintain the heald bar 11 in its upper mouth position and its intermediate position IP. Therefore, only one holding means 51 is required to select the raising of the heald rod 11 and the holding of the raised heald rod 11 to the upper mouth position.
[0039]
In the heald control device 100 according to this embodiment, the heald rod 11 is conveniently formed of plastic, and the latch means 52 and 56 are preferably molded integrally therewith.
[0040]
6 and 7 partially show the heald control device 200 according to the second embodiment in detail. The heald control device 200 according to the second embodiment is different from the second drive drive unit 50 and the latch engagement control unit 40 having different structures in that the heald control device 100 according to the first embodiment. Is different. The same heald rod holding means 51 is used and is therefore not shown. In FIG. 6, the drive drive means 50 comprises an elongate support 250 that conveys a plurality of cam bodies 260 that are each flexible and preferably attached to the support 250 by elastic arms 261.
[0041]
  In this embodiment, the cam body 260 acts as the drive latch control means 40.The support body 250 is provided for each row of the heald rods 11 and extends along the row.
[0042]
A cam body 260 is provided for each heald bar 11 in a row corresponding to the support body 250. The latch means 35 is in the form of a latch body 235 fixed to the heald rod 11, and the latch body 235 has a latch abutting surface 236 that protrudes on both sides of the heald rod 11 and is inclined downward. is doing.
[0043]
The cam body 260 has an abutment seat 237 facing upward, with which the latch surface 236 abuts under the bias of a spring 17 (not shown). The seat 237 covers a latch surface 236 so that the upward latch surface 234 formed on the knives 31 and 32 cannot be engaged with them.
[0044]
The hold bar 11 is formed of a flexible, preferably elastic material, and when not bent, the latch body 235 is guided so as to be arranged in the movement path of the latch surface 234 (FIG. 7).
[0045]
The cam body 260 moves laterally to the deflected non-latching position (FIG. 6) when the knife 31 or knife 32 is lowered to its lower position KLL and at the same time the heald bar 11 is positioned at its intermediate position IP. It has a side cam surface 238 disposed below a seat 237 that cooperates with the cam surface 240 of the knives 31 and 32 so as to bend the yield bar 11.
[0046]
If the raised bar 11 is not selected to be raised, i.e. not held in its intermediate position IP by the holding means 51, the support 250 is latched by the latch abutment surface 236 interrupted by the cam body 260. It is possible to move the heald rod 11 toward the lower position SLL while conveying the heald rod 11 without engaging the 235 so as to be hooked on the latch 234. When it is selected that the yield bar 11 is raised, that is, when the holding means 51 is maintained at the intermediate position IP, the cam body 260 moves when the support body 250 moves toward the lower position SLL. Is separated from the latch body 235 and the knives 31,32. Thus, the heald rod 11 has its own inherent biasing force and / or so that there is a hooked engagement between the latch body 235 and the latch 234 when the knives 31, 32 are raised (FIG. 7). Under the action of the urging force of the elastic arm 261, it returns to the unbent latch position.
[0047]
In order to release the hook of the heald rod 11 with the knives 31 and 32 that have returned to their lower position KLL, the support body 250 is raised to its upper position SUL and simultaneously the knives 31 and 32 are lowered. Therefore, when the knives 31 and 32 pass through the raised support body 250, the latch body 235 is seated on the cam body 260, and therefore, the knives are transferred from the descending knife.
[0048]
As seen in FIGS. 6 and 7, the heald bar 11 is preferably formed from a thin plate made of an elastic material such as spring steel, and is guided through a hole formed in the cam body 260. Guidance of the heald bar 11 through the cam body 260 is provided to ensure that the latch body 235 is seated correctly on the cam body 260, and the positive movement of the heald bar between the latched and unlatched positions. Guarantees a smooth lateral movement. It is assumed that the heald bar 11 is made of a plastic material and that the biasing force for the bent heald bar 11 to return is predominantly provided by the elastic arm 261.
[0049]
To achieve a hook-type engagement / disengagement between the knives 31, 32 and the cooperating latches formed on the heald rod 11, the second embodiment is in that the heald rod 11 moves laterally. FIG. 8 shows a heald control device 300 according to a third embodiment common to the heald control device 200. Furthermore, in the third embodiment, the holding means 51 similar to that described in the heald control device 100 according to the first embodiment is used.
[0050]
  In this third embodiment, the second drive drive means 50 is used for reciprocating movement in the direction of displacement of the knives 31 and 32 and for reciprocating movement in a direction perpendicular to the displacement of the knives 31 and 32. For this purpose, it has an elongated body 350 mounted on a frame (not shown).In this embodiment, the elongated body 350 acts as the drive latch control means 40.
[0051]
The heald rod 11 is similar to the heald control device 200 according to the second embodiment, but in addition, a separate fastener that is biased to abut against the main body 350 by a spring 17 (not shown). A latch body 235 having a main body 320 is provided. Each heald bar 11 is guided longitudinally through a respective hole formed in the elongate body 350 so as to positively move laterally when the body 350 reciprocates in the vertical direction. preferable.
[0052]
When the main body 350 is disposed in its lower position SLL, a first lateral position (see FIG. 9) in which the heald bar 11 is guided to be disposed in a non-latching position with respect to the knives 31, 32. Arranged). Thus, when the heald bar is raised by the body 350 toward its intermediate position IP, the latch body 235 does not reliably cause any hook-type engagement between the latch body 235 and the latch 234. It is spaced laterally from the knives 31, 32 by a sufficient distance.
[0053]
The main body 350 holds the first lateral position when the main body 350 starts a return stroke to its lower position SLL. During this return stroke, or when placed in its lower position SLL, the body 350 is moved towards the knives 31, 32 so that the heald bar 11 is placed in the latched position. Moves horizontally (arrow B in FIG. 9) to the horizontal position (FIGS. 8 and 10).
[0054]
The main body 350 maintains its second lateral position until it rises again toward its upper position SUL, at which point the main body 350 returns to its first lateral position.
[0055]
If the selection of the raised bar 11 is to be raised (FIGS. 9 and 10), its latching body 235 is arranged above the cooperating latching means 234 on the associated knives 31 and 32, and It is maintained in its intermediate position by the heald rod holding means 51 so that when moved up to its upper position KUL, it is moved laterally by the main body 350 to a latching position for engaging the corresponding knives 31, 32. If the heald rod 11 is not selected to be raised, as in the case of the heald rod 11a shown in FIG. 8, the heald rod 11 is not held in its intermediate position IP, but together with the latch body 235 its lower side Return to position HLL.
[0056]
In order to disengage the heald rod 11 from the knives 31, 32 moving to its lower position KLL, the body 350 is raised to its SUL position while the knives 31, 32 are lowered and the body 350 Is arranged in its first lateral position.
[0057]
Thus, as the knives 31, 32 pass through the main body 350, the fastener 320 engages the main body 350, thereby moving the support of the heald rod 11 from the knives 31, 32 to the main body 350.
[0058]
In FIG. 11, in order to control the latching engagement between the corresponding knives 31 and 32 and the heald rod 11 using the holding means 51 similar to the heald control device 100 according to the first embodiment, Shown is a heald control device 400 according to another embodiment that relies on lateral deflection of the heddle rod 11.
[0059]
In the heald control device 400 according to the fourth embodiment, each heald bar 11 in a predetermined row is disposed between a pair of second knives 451 and 452 that reciprocate between the positions SUL and SLL. The second knives 451 and 452 are arranged in each group, and the knives of each group reciprocate in synchronization.
[0060]
Both groups of knives 451 and 452 tune together and rise from position SLL to position SUL at the same height and speed, but return to position SLL at a different speed.
[0061]
One group of knives 451 returns to the position SLL at a faster rate than the other groups of knives 452 when the knives 31 are placed in their lowest position KLL to receive the heald rod 11. During the next cycle, the other group of knives 452 are placed in the one group when the knives 32 are placed in their lowest position KLL to receive the heald rod 11. It is provided so as to return toward the position SLL at a higher speed than the knife 451.
[0062]
  Each heald bar 11 includes a fastener body 420 that is biased to engage cooperating knives 451, 452. The upper edges of these knives 451, 452 are defined by an inclined cam surface 454 on which the fastener body 420 is seated vertically.In this embodiment, the cam surfaces 454 of the knives 451 and 452 act as the drive latch control means 40.The main body 420 has a pair of abutting surfaces 422 extending in the opposite lateral direction across the heald rod so as to contact the cam surfaces 454 of the adjacent knives 451 and 452. These surfaces 422 are also preferably inclined. During the ascent stroke of knives 451 and 452, both knives rise synchronously to the same level.
[0063]
Therefore, since both contact surfaces 422 are conveyed by both cam surfaces 454 of adjacent knives 451 and 452, the heald rod 11 is lifted without any lateral deflection during such an operation.
[0064]
However, when the knives 451 and 452 start a return stroke toward the position SLL, the knives 451 move below the knives 452, so both the heald rods 11 arranged on the opposite side with the knife 452 interposed therebetween. Is deflected laterally away from the knife 31 and the fastener body 420 slides down the inclined cam surface 454. This can be seen in the case of the heald rod 11b in FIG.
[0065]
Accordingly, the heald bar 11 is moved to a lateral non-latching position in which the latch body 435 is spaced from the latch structure 454 formed on the knife 31. When the hold bar 11 is raised to its HUL position (in the case of the heald bar 11a in FIG. 11), it is held at its intermediate position IP by the holding means 51. Thus, when the knives 451, 452 return to their SLL position, the fastener 420 moves away from the surface 454 and the heald bar 11 is moved in its path where the latch body 435 is disposed in the travel path of the latch structure 434. It is held in an unbent position.
[0066]
If the heald bar 11 is not raised and returns toward its HLL position, the heald bar 11 is deflected laterally to a non-latching position that releases the latch structure 434.
[0067]
The latch structure 434 and latch body 435 of the knives 31, 32 are inclined to form a cam surface that functions to bend the latch body 435 toward the knife 31 or knife 32 being transported. It is preferable to have the latch contact surfaces 438 and 439 which cooperate. Thereby, the latch body 435 can be moved to a position arranged outside the movement path of the adjacent knife 31 or knife 32.
[0068]
FIG. 12 shows a heald control device 500 according to the fifth embodiment.
[0069]
  The heald control device 500 according to the fifth embodiment includes an inclined cam surface 554 for engaging knives 451 and 452 with a latch body 535 formed on the heald rod 11.(In this embodiment, this cam surface 554 acts as the drive latch control means 40)Is common to the heald control device 400 according to the fourth embodiment. Therefore, in this heald control device 500, the latch body 535 also functions as the fastener 20. When these latch bodies 535 are disposed on the cam surface 554, the heald bar 11 is deflected laterally to the unlatched position (as in the case of the heald bar 11b of FIG. 12).
[0070]
In addition, the groups of knives 451 and 452 reciprocate with a 180 ° phase shift. Accordingly, the hooks 11 are conveyed toward their intermediate position IP by either one group of knives 451 or another group of knives 452.
[0071]
When both sets of knives 451, 452 are located in their lower position SLL, the latch body 535 of a given heald rod 11 is seated on both cam surfaces 554 of adjacent knives 451, 452, and so on. Therefore, it is arranged at a position that is not bent. When seated on both knives 451 and 452, the heald bar 11 is placed at the lower mouth position.
[0072]
Each pair of adjacent knives 451 is moved away from the cooperating knives 31 so that a latched engagement between the latch structure 534 and the latch body 535 of the knives 31 is not possible. In the lateral direction, the pair of heald rods 11 conveyed thereby cooperate to bend. Each pair of adjacent knives 452 cooperates with a cooperating knife 32 as well.
[0073]
If the heald bar 11 is selected to be raised (as in the case of the heald bar 11c in FIG. 12), it is held at the intermediate position IP by the heald holding means, and therefore selected when the knife 451 is lowered. The latch body 535 of the hold bar 11 is lifted off the supporting cam surface 554. For this purpose, the heald rod 11 returns to its unbent (latched) position under the action of its inherent biasing force. The latch body 535 is disposed in the movement path of the latch structure 534.
[0074]
As in the heald control device 400 according to the fourth embodiment, the latch body 535 is inclined to cooperate with the inclined seat 539 of the latch structure 534 to move the latch body 535 toward the knife 31 or the knife 32. It has a surface 538 so that it is transported to a position that is located outside the movement path of the knife 31 or knife 32.
[0075]
A heald control device 600 according to another embodiment is shown in FIGS. 13 and 14 to 16.
[0076]
This heald control device 600 is the fifth embodiment in that the drive means 50 includes two sets of knives 451 and 452 that reciprocate with a 180 ° phase shift between the SUL and SLL positions. It is common with the heald control apparatus 500 which concerns on this.
[0077]
As can be seen in FIG. 13, the heald rod 11 is arranged in the lower shed position in the selection preparation state. In this embodiment illustrated in FIG. 13, the heald bars 11 are held in their lower mouth position by fasteners (not shown).
[0078]
  Each knife 451, 452 includes an upwardly inclined cam surface 654 disposed to cooperate with a downwardly inclined cam surface 638 formed in the latch body 635.In this embodiment, the cam surface 654 acts as the drive latch control means 40.
[0079]
As seen in FIG. 14, when the knife 452 rises toward its upper position SUL, the cooperating cam surfaces 654 and 638 cause the pair of heald rods 11 to thereby be conveyed upward toward their intermediate position IP. Engage.
[0080]
Cam surfaces 654 and 638 move latch body 635 inward toward knife 452 and thereby move heald bar 11 to their unlatched position. In this position, the heald bars 11 can be moved to their IP position without latching engagement with the knife 32 (FIG. 14).
[0081]
If no heald bar 11 is required to rise to its upper shed position, heald bars 11 are maintained in their unlatched position when the knife 452 is lowered to their lower position SLL. .
[0082]
If the heddle 11 is required to rise, it is held in its IP position by the latch holding means 51 while the knife 452 is lowered. This is illustrated in FIG.
[0083]
The latch body 635 is provided with an upward cam surface 639, and the knives 451 and 452 are provided with downward cam surfaces 640. These cam surfaces 639 and 640 are moved positively by the cam surfaces 639 and 640 toward the respective knives 32 when the knives 451 and 452 are lowered and the heald rod 11 is held in its IP position. As described above, the latch body 635 is directly opposed when being conveyed by the knives 451 and 452.
[0084]
The amount of lateral movement caused by the opposing cam surfaces 639, 640 is such that the ascending knife 32 can latchably engage the latch body 635, and the latch position where the heald bar 11 can be raised to the upper lip position. It is sufficient to move the yield bar 11. The initial latching engagement between knife 32 and latch body 635 is illustrated in FIG.
[0085]
After the initial engagement, cooperating opposing cam surfaces 539, 638 function to move the latch body 635 toward the transport knife 32 so that it is released from the adjacent knife 31 (FIG. 16). .
[0086]
As seen in FIG. 13, the knives 31, 32 are constructed of a pressed metal structure having two identical halves 650 joined together, and a latch 634 is formed integrally with each half. It is preferable that
[0087]
Each knife 31, 32 preferably has a wide portion 651. This wide portion 651 of each knife is selected to be closely spaced with respect to the latch body 635 of the heald rod 11 held in its upper position. This helps to ensure that adjacent knives 31, 32 rising towards their upper position KUL are correctly engaged with the latch body 635 (i.e., the rising knife to the latch body 635). (The impact will not cause unintentional deflection to the unlatched position.)
[0088]
In FIG. 13, the heald rods 11 are secured to their lower rods by fasteners (not shown) so that both sets of knives 451, 452 do not come off the latch body 635 when they are lowered to the SUL position. It is arranged at the mouth position.
[0089]
As another device, it is envisaged that when the knives 451, 452 descend towards their lower limit position SUL, they rest for a certain time so as to define the lower mouth position of the heald rod 11 conveyed thereby. ing.
[0090]
In this device, the rising set of knives 451 or knives 452 receives the heald bar 11 from the falling set of knives 451 or knives 452. In such a case, the heald rod 11 located in the lower shed region is always transported by one or another set of knives 451, 452, thereby holding the heald rod 11 in the lower shed position. The fastener used in the mechanism shown in FIG. The heald control device 600 according to the sixth embodiment ensures positive displacement between the latched position and the non-latched position of each heald bar 11. Therefore, the main body of each heald bar 11 does not need to be able to bend elastically. For this reason, it is preferable that the heald rod 11 in the heald control device 600 is made of plastic.
[0091]
A heald control device 700 according to another embodiment is shown in FIG. The heald control device 700 according to this embodiment provides a knife for the heald bar 11 to transport the heald bar 11 to their IP position and move the heald bar 11 between their latched and unlatched positions. 451 and 452 are different in that a main body 740 is provided. Therefore, in this embodiment, the latch body 635 cooperates only with the knives 31, 32 and is not contacted by the knives 451, 452.
[0092]
As can be seen in FIG. 17, each heald bar 11 is provided with two cam bodies 740a and 740b that cooperate with knives 451 and 452, respectively. Each cam body 740a, 740b has a downwardly inclined cam surface 742 that cooperates with an upwardly inclined inclined cam surface 743 formed in the corresponding knife 451, 452. The cam surfaces 742 and 743 are chamfered so as to prevent lateral separation in the longitudinal direction of the knives 451 and 452 when the cam surfaces 742 and 743 are engaged.
[0093]
  In this embodiment, the cam surfaces 743 of the knives 451 and 452 act as the drive latch control means 40.When the knives 451, 452 are raised to receive and transport the heald bar 11, the opposing cooperating cam surfaces 742, 743 engage and deflect the heald bar 11 to its unlatched position.
[0094]
Each cam body 740 also includes an upwardly inclined cam surface 746 that engages a downwardly facing cam surface 747 formed on knives 451, 452. These cam surfaces 746, 747 are directly opposed when the cam body 740 is fully seated on the knives 451, 452, as seen in the heald rod 11a in FIG.
[0095]
When the hold bar 11 is held in its intermediate position IP by the holding means 51, the cam surfaces 746, 747 will positively move the heald bar 11 toward its latch position when the corresponding knives 451, 452 are lowered. Cooperate to bend.
[0096]
The hold bar 11 is preferably formed of plastic, and the cam body 740 is preferably formed integrally with the body of the heald bar.
[0097]
A heald control device 800 according to another embodiment is shown in FIGS.
[0098]
The heald control device 800 according to this embodiment is different from the heald control device 500 according to the fifth embodiment in that the heald rod 11 is conveyed by the knives 451 and 452 between the lower mouth position and the IP position. Commonly, the heald rods and knives 451 and 452 are provided with cam surfaces for positively deflecting the heald rods from their non-latched position (heald rod 11b in FIG. 18) to the latched position (heald rod 11c in FIG. 19). This is common to the heald control devices 600 and 700 according to the sixth and seventh embodiments.
[0099]
Accordingly, parts common to those described in relation to the heald control devices 500, 600, 700 according to these embodiments are shown in FIGS. 18-20 by the same reference numerals.
[0100]
  In the heald control device 800 according to the eighth embodiment, each knife 451, 452 is provided with a finger part 850 spaced along each knife, and the finger part 850 is formed on a heald rod. And an upwardly inclined cam surface 554 for engaging the latch body 535.In this embodiment, the cam surface 554 of the finger 850 of the knives 451 and 452 acts as the drive latch control means 40.The latch body 535 has a downwardly inclined surface 538 so that when the heald bar 11 is supported by the knives 451 and 452, it is placed in the non-latching position (FIG. 18). Each heald bar 11 is disposed between a pair of adjacent finger portions 850 and includes a cam protrusion 811 protruding in the lateral direction and disposed below the cam surface 538.
[0101]
The cam projection 811 is a downwardly inclined cam formed on the finger 850 so as to bend the heald bar 11 to its unlatched position when the heald bar 11 is held in its IP position (FIG. 19). It has an upwardly inclined cam surface 812 that cooperates with surface 814. FIG. 20 shows the heald bar 11d selected and moved to its upper mouth position.
[0102]
By disposing the cam protrusion 11 for bending the yield bar below the latch body 535, the strokes of the knives 451 and 452 can be reduced, and the lower stroke limit of the upper knives 31 and 32 is the upper stroke limit of the lower knives 451 and 452. It is possible to be placed in close proximity to.
[0103]
For example, as shown in FIG. 2, the heald bar 11 in all embodiments preferably includes a plurality of latch means 56 spaced along the length of the heald bar body. This allows adjacent rows of heald rods 11 to be held at different heights, thereby creating an inclined shed, i.e., a throat that narrows in a distorted direction. Typically, adjacent latching means 56 are spaced 6 mm apart such that tapered sheds are formed in steps at 6 mm intervals.
[0104]
In order to achieve a slanted mouth, each set of adjacent knives 31, 32 should be raised at a different height, i.e. the knife placed in front of the knife set It is known to be raised at different heights relative to the knife placed at the rear.
[0105]
Thus, a given knife in the set is required to raise the row of heald bars to a preset height in order to be able to hook the latch body 153 to the preset latch means 56. .
[0106]
In practice, the actual position KUL reached in each stroke varies with different loads applied depending on the number of heald bars 11 raised. This means that when the knives 31, 32 are placed in their upper position KUL when calculated at the maximum load condition, the latch body 153 is shown in FIG. 21 between the adjacent upper and lower latch means 56, respectively. Interval C₁, C₂Is adapted by ensuring that it is placed in
[0107]
Typically, the latch means 56 is spaced 6 mm apart and C₁, C₂Are each at least 1.5 mm.
[0108]
A gap C of at least 1.5 mm for a particular knife 31, 32 in each set₁, C₂Cannot be achieved. In this case, for example, if the light lift is latched in one cycle and the knife is heavier lifted in the next cycle and does not rise sufficiently, then the heald rod 11 from the holding means 51 There is a risk that detachment cannot be achieved.
[0109]
The present invention utilizes a single holding means 51 in which a latch body 153 is provided with a latch means 52 (for selection of the heald rod 11 rising to its upper shed position) and its upper shed. It is necessary to cooperate with both predetermined latch means 56 for holding the heald rod 11 in position.
[0110]
Therefore, it is impossible to adjust the height of the latch body 153 in order to ensure an accurate latch with the latch means 56 without affecting the latch position with the latch means 52.
[0111]
According to the present invention, it is preferable to provide two latch means 52 spaced apart by a pitch interval different from the pitch interval between the latch means 56. For example, the interval of the latch means 52 is 1.5 times the interval of the latch means 56, that is, 9 mm in a typical example.
[0112]
This places each row of latch bodies 153 at two distinct heights (upper and lower heights spaced by 9 mm), where a given row of latch bodies 153 can be one or the other. In cooperation with the latch means 52. Thus, the latch body 153 functions to hold the heald rods 11 of all rows at the same height.
[0113]
If the height of the row of latch bodies 153 depends on the degree of lift of the associated knives 31, 32, the reference gap C₁, C₂Can not be achieved, the latch body 153 can be moved from one height setting (eg, the upper side) to another height setting (eg, the lower side) or vice versa. This has the effect of placing the latch bodies 153 in a row for cooperating with the next pair of latch means 56, the latch bodies 153 being displaced by 9 mm and the latch means 56 being spaced by 6 mm. Since there is a gap C₁, C₂The criteria are consistent.
[0114]
It is envisaged that two or more latch means 52 are provided and different pitch intervals are employed. For example, FIG. 22 shows a preferred heald bar 11 having five latch means 52 spaced 9 mm apart and ten latch means 56 spaced 12 mm apart.
[Brief description of the drawings]
FIG. 1 is a schematic side view showing main operations of a mechanism according to the present invention.
FIG. 2 is a more detailed side view of the first embodiment according to the present invention.
FIG. 3 is an enlarged schematic side view showing a part of the modified holding means incorporated in the first embodiment.
4 is a schematic perspective view showing a lower part of the mechanism of FIG. 2; FIG.
FIG. 5 is a schematic diagram showing relative movement of the components shown in FIG. 4;
FIG. 6 is a partial side view in more detail of the second embodiment according to the present invention.
FIG. 7 is a view similar to FIG. 6 showing selection of the yield bar.
FIG. 8 is a more detailed side view showing a third embodiment according to the present invention.
FIG. 9 is a schematic diagram showing the operation of the component shown in FIG. 8;
FIG. 10 is a schematic view similar to FIG.
FIG. 11 is a more detailed side view showing a fourth embodiment according to the present invention.
FIG. 12 is a more detailed side view showing a fifth embodiment according to the present invention.
FIG. 13 is a side view showing a sixth embodiment according to the present invention.
14 is an enlarged side view showing a part of the mechanism according to the embodiment represented in FIG. 13;
15 is a side view similar to FIG. 14, but arranged at a different position from FIG.
16 is a side view similar to FIG. 14 and disposed at a position different from that of FIGS. 14 and 15. FIG.
FIG. 17 is an enlarged side view similar to FIGS. 14 to 16, showing a seventh embodiment according to the present invention.
FIG. 18 is an enlarged side view showing a part of a mechanism according to an eighth embodiment of the present invention.
19 is a side view similar to FIG. 18 shown in an operating position different from FIG. 18;
20 is a side view similar to FIG. 18 shown in an operating position different from that of FIGS. 18 and 19. FIG.
FIG. 21 is a schematic view showing the relative position between the holding means and the heald bar latch means.
FIG. 22 is a side view showing a part of the heald rod according to the present invention.
[Explanation of symbols]
HUL upper limit position (first limit)
HLL lower limit position (second limit)
IP intermediate position (intermediate limit position)
LS Lower shed position (second shed position)
US Upper shed position (first shed position)
10, 100, 200, 300, 400, 500, 600, 700, 800 Hold control device
11 Hell stick (hook)
31, 32 knives
34, 35 Latch means (drive latch means)
40 Latch engagement control means (drive latch control means)
50 Drive drive (Heald rod drive means)
51 Hold rod holding means (stationary latch means)
260 Cam body (cam member)

Claims (8)

Having at least one elongate heald bar movable longitudinally between a first limit position (HLL) and a second limit position (HUL) of reciprocation;
During driving, the head rod is continuously reciprocated along a path parallel to the longitudinal axis of the heald rod, whereby the heald rod (11) is moved to the second limit position (HUL) and the first limit position (HLL). ) And an intermediate position (IP) located between the second limit position (HUL) and a first heald rod drive means (30) that moves between them,
A second heald bar that continuously reciprocates along the path during driving, thereby moving the heald bar (11) between the intermediate position (IP) and the first limit position (HLL). Having drive means (50);
The heald rod is biased toward the first limit position (HLL) of reciprocating movement so as to be disposed at the first throat position,
The heald rod and the first heald rod driving means (30) are configured such that the first heald rod driving means (30) moves along the path in a direction toward the second limit position (HUL) of the reciprocating operation. Engaged when moving with respect to the rod, and the first heald rod driving means (30) is reciprocally moved toward the first limit position (HLL) along the path with respect to the heald rod. Cooperative drive latch means (34, 35) that automatically disengages when moving
Said second heald rod drive means (50) comprises drive latch control means (40) for causing said engagement or disengagement of said cooperative drive latch means (34, 35);
The drive latch control means (40) acts on the heald rod supported on the second heald rod drive means (50), whereby the second heald rod drive means (50) is Causing the cooperative drive latch means (34, 35) to disengage when moving the yield bar from the intermediate position (IP) to the first limit position (HLL);
And further comprising selectively actuable stationary latch means (51),
The stationary latch means (51) acts on the heald rod to selectively hold the heald rod in the intermediate position;
Thus, when the heald rod is held at the intermediate position (IP) and the second heald rod driving means is moving toward the first limit position (HLL), the driving latch control means (40). Engages the cooperating drive latch means (34, 35) so that the heald rod (11) is moved back and forth from the intermediate position (IP) by the first heald rod drive means (30). A heald control device characterized in that it can be moved toward a two-limit position (HUL). The heald rod (11) is provided with shed position latch means (56),
The mouth position latch means (56) can be engaged with the stationary latch means (51), and by this engagement, the heald rod is moved by the stationary latch means (51) to the intermediate position (IP). 2. The heald control device according to claim 1, wherein the heald control device can be selectively held at a second mouth position located between the first limit position and the second limit position (HUL) of the reciprocating operation. The cooperative drive latch means (34) associated with the first heald rod drive means (30) has a hook (161) resiliently biased to a latch engagement position;
3. A heald control device according to claim 1 or 2, wherein the drive latch control means (40) is operable to deflect the hook (161) to an unlatched position. The cooperative drive latch means (34, 35) is fixedly disposed on both the heald rod (11) and the first heald rod drive means (30);
The drive latch control means (40) is operable relative to the heald bar (11) to move the heald bar laterally between a latched position and an unlatched position. The heald control device according to claim 1 or 2. The heald rod (11) is guided to move longitudinally along a reciprocating path corresponding to the latch position;
A heald control device according to claim 4, characterized in that the drive latch control means (40) is operable to deflect the heald rod to the unlatched position. Knives (451, 452) used by the second heald rod drive means (50) to convey the heald rod (11) between the first limit position (HLL) and the intermediate position (IP). Have
The drive latch control means (40) has cam surfaces (454, 554, 654, 743) provided on the knife, which cam surfaces (422, 538,) provided on the heald rod. 638, 742), wherein the heald bar is deflected to the unlatched position while the heald bar is being conveyed by the knife. The drive latch control means (40) has a cam member (260) on which the heald rod (11) is seated when the second heald rod drive means (50) performs conveyance,
The second heald rod drive means (50) has a knife (250) to which the cam member ( 260 ) is detachably attached;
The knife (250) is adapted to contact the first heald rod drive means (30) to deflect the heald rod (11) to the unlatched position. The described heald control device. An elongate body (350) configured such that the second heald rod drive means (50) can reciprocate between the first limit position (HLL) and the intermediate position (IP) along the path. Have
The drive latch control hand stage, have a means for also causing cause reciprocating movement in a direction perpendicular to said path between said latched position and the unlatched position the heald rod said by an elongated body (350) The heald control device according to claim 5, wherein

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