JP5344968B2 - Ear thread supply device for planetary ear assembly device in loom - Google Patents

Abstract

The present invention relates to a selverdge warp feeding device which is used for a planetary edge weaving device of weaving machine. The aim of the invention is to prevent the damage of selverdge warp bobbin or selverdge warp feeding device, which is caused by the vibration of selverdge warp bobbin in axial direction, etc. In a selvedge warp feeding device (1) which rotatably supports the planetary edge weaving device of the selverdge warp bobbin (2) between a pair of side walls (3a) opposite on a bobbin bracket (3) through a bobbin shaft (4), at least one selected from the end faces 3b and 6b of the selvedge warp, which face a side wall (3a) of the bobbin yarn (3) and an end face 2b that faces the side wall (3a) of the bobbin bracket (3) is provided with a buffer component 5 which projects from the end face of one member to the end face side of the other member.

Description

  The present invention relates to an ear thread supply device for a planetary ear assembly device in a loom.

  As seen in Patent Document 1, as an ear assembly device for an unwoven loom, by using a planetary gear mechanism, two ear thread supply devices rotate and revolve while rotating, so-called planetary motion is performed. Those that twist are known.

  FIG. 6 shows an example of a conventional planetary ear assembly device, in which a cover and the like are omitted to show the internal structure of the device. In the apparatus, the carrier gear 8 is rotated by the drive gear 7 and the two ear thread supply devices 51 that are rotatably supported by the carrier gear 8 are revolved. Further, the ear thread supply device 51 rotates integrally with the planetary gear 9 located on the opposite side to the ear thread supply device 51 with the carrier gear 8 interposed therebetween, and the planetary gear 9 is connected to the carrier gear 8. The idle gear 9a meshes with the sun gear 10 that is fixed to the carrier gear 8 so as to be non-rotatable.

  As a result, the two ear thread supply devices 51 perform a planetary motion that rotates and revolves as the carrier gear 8 rotates. An ear thread bobbin 52 is rotatably supported by each of the two ear thread supply devices 51, and the planetary ear assembly apparatus receives two ear threads (not shown) drawn from the two ear thread bobbins 52. Twisting by the planetary motion forms a twisted ear tissue. The revolution of the ear thread supply device 51 is performed once per two rotations of the main shaft of the loom. That is, in the loom driven at 800 rpm, the ear thread supply device 51 revolves 400 times per minute.

  In this example, a bobbin holder 53 that forms part of the ear thread supply device 51 and supports the ear thread bobbin 52 is configured as a U-shaped member having a pair of side walls 53a, and the pair of side walls 53a By supporting both ends of the bobbin shaft 4 penetrating the ear thread bobbin 52, the ear thread bobbin 52 is rotatably supported.

  In general, the ear thread supply device 51 of the planetary ear assembly apparatus is configured such that the ear thread bobbin 52 can be easily detached from the bobbin holder 53 in order to realize quick replacement of the ear thread bobbin 52. FIG. The ear thread supply device 51 of the planetary ear assembly shown is also configured in that way.

  Describing in more detail with reference to FIG. 7, a pair of side walls 53a of the bobbin holder 53 is formed with a through hole 53g for fitting the bobbin shaft 4, and the bobbin shaft 4 having substantially the same diameter as the through hole 53g. Can be inserted into and removed from the side wall side of the bobbin holder 53 through the through hole 53g. The bobbin shaft 4 has a bowl-shaped shaft head 4a at one end thereof, and the shaft head 4a is in contact with the outer surface of the side wall 53a of the bobbin holder 53 with the bobbin shaft 4 inserted into the through hole 53g. It has become.

  Further, the bobbin holder 53 has a leaf spring-like pressing member 17 that prevents the bobbin shaft 4 from dropping off on one of the pair of side walls 53a. The pressing member 17 presses the shaft head 4a of the bobbin shaft 4 inserted into the through hole 53g of the bobbin holder 53 against the outer surface of the side wall 53a of the bobbin holder 53 (a state where the pressing member 17 is sandwiched between the outer surface of the side wall 53a and the pressing member 17). The bobbin shaft 4 is held without being easily rotated.

  The ear thread bobbin 52 has a through hole 52g formed around the axis, and the ear thread bobbin 52 is inserted into the through hole 52g via the bobbin shaft 4. The bobbin holder 53 is rotatably supported.

  When the ear thread bobbin 52 is attached to the bobbin holder 53, the ear thread bobbin 52 is first inserted between the pair of side walls 53 a of the bobbin holder 53 with the bobbin shaft 4 removed from the bobbin holder 53. Next, the through hole 52g of the ear thread bobbin 52 and the through hole 53g of the pair of side walls 53a are aligned, and the bobbin shaft 4 is connected to the bobbin holder 53 and the ear from the side of the side where the pressing member 17 of the bobbin holder 53 is provided. Insert into the thread bobbin 52. Then, by pressing the shaft head 4 a of the bobbin shaft 4 with the pressing member 17, the mounting operation of the ear thread bobbin 52 to the bobbin holder 53 is completed. Further, when removing the ear thread bobbin 52 from the bobbin holder 53, the locking of the bobbin shaft 4 by the pressing member 17 is released, the bobbin shaft 4 is pulled out from the bobbin holder 53, and the ear thread bobbin 52 is removed from the bobbin holder 53. Thus, the ear thread bobbin 52 can be easily replaced without using a tool.

  Here, in the operation of attaching the ear thread bobbin 52 to the bobbin holder 53, the ear thread bobbin 52 is quickly inserted between the pair of side walls 53a of the bobbin holder 53, and the through hole 53g of the bobbin holder 53 and the ear thread bobbin 52 are easily provided. The dimension between the pair of side walls 53a of the bobbin holder 53 is formed slightly larger than the width dimension (dimension in the axial direction) of the ear thread bobbin 52 so that the through hole 52g can be aligned. Therefore, in a state where the ear thread bobbin 52 is mounted on the bobbin holder 53, a slight gap 21 is formed between the side wall 53 a of the bobbin holder 53 and the end surface of the ear thread bobbin 52.

  However, the presence of the gap 21 causes the ear thread bobbin 52 to vibrate vigorously in the axial direction during the planetary movement of the ear thread supply device 51 (bobbin holder 53). This is because, due to the revolution of the ear thread supply device 51, centrifugal force acts on the ear thread bobbin 53. However, since the ear thread supply device 51 also rotates, the axial direction of the ear thread bobbin 52 is viewed from the ear thread bobbin 52. This is because the direction of the force acting on the surface constantly changes during one revolution. Specifically, a state in which the direction of the force is reversed by 1/2 rotation of the loom main shaft and reversed again (returned to the original direction) by the next 1/2 rotation is repeated, and the ear thread bobbin 52 is moved to the bobbin holder 53. The state of receiving a force on one of the side walls and the state of receiving a force on the other side wall are alternately repeated.

  As a result, with the planetary movement of the ear thread supply device 51, the ear thread bobbin 52 repeatedly collides with each side wall of the bobbin holder 53, which may cause damage to the bobbin holder 53 and the ear thread supply device 51. . Moreover, since the vibration of the entire planetary ear assembly device is generated by the repetition of the collision, it may adversely affect the weaving. In particular, during high-speed operation of the loom, the bobbin holder 53 and the ear thread bobbin 52 in the ear thread supply device 51 are subjected to a large centrifugal force, so that the impact at the time of the collision increases and the collision speed increases due to an increase in the revolution speed. As the frequency increases, the adverse effects are considered to be more prominent.

  By the way, the planetary ear assembly device sandwiches the weft with two ear threads and twists the ear threads to hold the wefts to the ear threads. However, if the tension of the ear threads is low, the wefts are not sufficiently held by the ear threads. As a result, the weft may be loosened, so-called ear looseness may occur. In order to prevent this loosening of the ear, which is a problem in the quality of the woven fabric, it is preferable that the tension of the ear thread drawn from the ear thread bobbin 52 is always within a desired range. For this reason, the ear thread supply device 51 allows the ear thread bobbin 52 to rotate when the tension of the ear thread increases and lowers the tension. When the tension decreases, the ear thread bobbin 52 stops rotating and increases the tension. In general, a tension adjusting mechanism is provided to keep the value within a certain range.

  However, when the rotation of the ear thread bobbin 52 is permitted, the ear thread bobbin 52 may over-rotate, the ear thread may be loosened, and the tension of the ear thread may be greatly reduced beyond a desired range. If the tension of the ear thread is excessively reduced in this way, the above-described drawback of loosening of the ear occurs.

  An example will be described. 7 and 8 show an ear thread supply device 51 using a ratchet mechanism as a tension adjusting mechanism. In this example, the ratchet mechanism includes a pawl 11 provided so as to be swingable with respect to the bobbin holder 53, and a stop car (ratchet wheel) 12 provided on the ear thread bobbin 52 and meshing with the pawl 11. In FIG. 7, a part of the pawl 11 and the stop car 12 is omitted.

  A fixed shaft 13 is installed between the pair of side walls 53 a of the bobbin holder 53, and the pawl 11 is fixed to a rotary shaft 13 a that is rotatably fitted to the outside of the fixed shaft 13. A passive arm 14 having a yarn guide 14a through which the ear thread 20 is inserted is fixed to the rotary shaft 13a. That is, the pawl 11, the passive arm 14, and the rotating shaft 13 a are integrally formed, and these can be reciprocally swung with respect to the bobbin holder 53.

  Further, a tensioner arm 15 having a yarn guide 15 a around which the ear thread 20 is wound is provided on the fixed shaft 13 separately from the passive arm 14 so as to be able to reciprocate with respect to the bobbin holder 53. The tensioner arm 15 is pulled clockwise in FIG. 8 by an urging force of a spring (not shown) and is positioned at an initial position (a solid line in FIG. 8).

  In FIG. 8, the ear thread 20 drawn out from the ear thread bobbin 52 is inserted into the yarn guide 14a of the passive arm 14, wound around the yarn guide 15a of the tencer arm 15, and further passed through the ear thread guide 16 to be not shown. Guided to the fabric side. Accordingly, the passive arm 14 is pulled clockwise in FIG. 7 by the ear thread 20 in a state where the ear thread 20 is stretched, and the pawl 11 integrated with the passive arm 14 is engaged with the stop car 12.

  When the tension of the ear thread 20 exceeds the biasing force of the spring (not shown), the tensioner arm 15 is pulled counterclockwise in FIG. 8 by the ear thread 20 and is displaced forward to the release position (the broken line position in FIG. 8). Move forward. The tensioner arm 15 has an engagement portion 15b that engages with the passive arm 14 at the time of forward displacement, and when the tensioner arm 15 is displaced forward as the tension of the ear thread 20 increases, the engagement portion 15b of the tensioner arm 15 is engaged. Engages with the passive arm 14, and accordingly, the passive arm 14 and the pawl 11 are also displaced forward to the release position, and the meshing between the pawl 11 and the stop 12 is released.

  According to this configuration, if the tension of the ear thread 20 is equal to or less than a predetermined value (a value corresponding to the urging force of the spring), the tensor arm 15 is maintained at the initial position without moving forward. Therefore, in the ratchet mechanism, the pawl 11 and the stop car 12 remain engaged. For this reason, the ear thread bobbin 52 does not rotate, and the tension of the ear thread 20 increases with the progress of weaving.

  When the tension of the ear thread 20 rises and exceeds the predetermined value, the tensor arm 15 is displaced forward, and accordingly, the passive arm 14 and the pawl 11 are also displaced forward. Accordingly, the meshing between the pawl 11 and the vehicle stop 12 is released. As a result, the ear thread bobbin 52 becomes rotatable and the ear thread 20 is pulled out. When the ear thread 20 is pulled out, the tension of the ear thread 20 is reduced, and when the tension of the ear thread 20 becomes equal to or less than the biasing force of the spring, the tensioner arm 15 is displaced backward toward the initial position by the biasing force of the spring. As the tensioner arm 15 is moved backward, the engagement between the tensioner arm 15 and the passive arm 14 is released. Therefore, the passive arm 14 is also pulled backward by the ear thread 20 and is displaced backward. Are engaged again, and the ear thread bobbin 2 becomes non-rotatable.

  In the ear thread supply device 51 of FIGS. 7 and 8, the tension of the ear thread 20 is maintained within a certain range by repeating such an operation.

  However, in the ratchet mechanism of the ear thread supply device 51 described above, the backward displacement of the passive arm 14 for reengagement of the pawl 11 and the stop wheel 12 positively biases the passive arm 14 in the backward movement direction. However, the engagement with the tensioner arm 15 is released in accordance with the backward displacement of the tensioner arm 15 so that the passive arm 14 can move backward, and the ear guided by the passive arm 14. This is a reluctance that the yarn 20 is displaced by the backward displacement of the tensor arm 15 (or the tension increases).

  Therefore, when the tension of the ear thread 20 is low, the backward movement of the passive arm 14 may not be performed smoothly. In that case, even if the tension of the ear thread 20 is equal to or less than the above-described predetermined value and the tensor arm 15 is displaced backward, the pawl 11 and the stop 12 do not re-mesh immediately, and the ear thread bobbin 52 There is a case where the over-rotation causes the tension of the ear thread 20 to greatly decrease beyond a desired range. And when the tension | tensile_strength of the ear thread 20 falls in this way, the fault called so-called ear looseness will generate | occur | produce in the woven fabric woven.

JP-A-10-273844

  SUMMARY OF THE INVENTION An object of the present invention relates to an ear thread supply device for a planetary ear assembly device used in a loom, and the ear thread bobbin supported by a bobbin holder in the ear thread supply device vibrates in the axial direction. And preventing the ear thread supply device from being damaged. Further, it is to prevent the loosening of the ear due to the over rotation of the ear thread bobbin.

  Under the above-mentioned problems, the present invention has the following configuration of the ear thread supply device (1) for the planetary ear assembly device used in the loom. That is, including the bobbin holder (3) and the ear thread bobbin (2), the ear thread bobbin (2) can be rotated between the pair of opposing side walls (3a) of the bobbin holder (3) via the bobbin shaft (4). In the ear thread supply device (1) for the planetary ear assembly device supported on the at least one of the bobbin holder (3) and the ear thread bobbin (2), the side wall (3a) of the bobbin holder (3) or the ear The yarn bobbin (2) includes a buffer member (5) protruding from an end surface (2b) facing the side wall (3a) and interposed between the side wall (3a) and the end surface (2b). In addition, as a buffer member (5), the member which consists of a flexible material which has buffer performance, for example, a felt, a nonwoven fabric, a resin material, and a rubber-type material, can be considered.

Then, in the present invention described above, the buffer member (5), are formed by oil-impregnated member which lubricant is impregnated. Here, the “oil-containing member” is a member made of a flexible material having a buffering performance and capable of being impregnated with a lubricant, and examples thereof include the felt and the nonwoven fabric described above. A porous synthetic resin is also exemplified as an oil-containing member having buffer performance.

  In the above-described present invention, at least one of the bobbin holder (3) and the ear thread bobbin (2) provided with the buffer member (5) is more of the bobbin shaft (4) than the buffer member (5). It is good also as what has at least one part of the said side wall (3a) or the said end surface (2b) in the axial center side.

  As a specific example, when the buffer member (5) is attached to the side wall (3a) of the bobbin holder (3) and the buffer member (5) has an annular shape surrounding the bobbin shaft (4), the bobbin With respect to the radial direction of the shaft (4), a configuration in which at least a part of the side wall (3a) is interposed between the buffer member (5) and the bobbin shaft (4) can be mentioned.

  As another specific example, the buffer member (5) is attached to the end surface (2b) of the ear thread bobbin (2), and the buffer member (5) has an annular shape surrounding the bobbin shaft (4). In the radial direction of the bobbin shaft (4), there is a configuration in which at least a part of the end surface (2b) is interposed between the buffer member (5) and the bobbin shaft (4).

  Furthermore, the side wall (3a) of the bobbin holder (3) is configured to include a bearing member (6) for supporting the bobbin shaft (4), and the bearing member (6) is configured to include the bobbin shaft (4). ) Is inserted, a support surface (6e) that faces the ear thread bobbin (2) and supports the cushioning member (5), and the bobbin more than the support surface (6e). A projecting portion (6h) projecting toward the ear thread bobbin (2) from the support surface (6e) in the axial direction of the bobbin shaft (4) on the shaft core side of the shaft (4); You may provide the said buffer member (5) so that it may protrude from the end surface (6b) facing the said ear thread bobbin (2) of the said protrusion part (6h). In this case, the protrusion (6h) corresponds to “a part of the side wall (3a) existing on the axial center side of the bobbin shaft (4) with respect to the buffer member (5)”.

  In the present invention, the buffer member (5) is provided on at least one of the side wall (3a) of the bobbin holder (3) and the ear thread bobbin (2), and the buffer member (5) is applied to the other. You may provide so that it may touch.

  A buffer member (between the side wall (3a) and the end surface (2b) protruding from one side to the other on at least one of the side wall (3a) of the bobbin holder (3) and the end surface (2b) of the ear thread bobbin (2) ( 5), even if the axial vibration of the above-described ear thread bobbin (2) occurs, the ear thread bobbin (2) and the side wall (3a) of the bobbin holder (3) can be interposed via the buffer member (5). It will collide. Thereby, the impact at the time of a collision is relieved and damage to the ear thread bobbin (2) and the ear thread supply device (1) can be prevented.

  Further, when the ear thread bobbin (2) and the side wall (3a) of the bobbin holder (3) are in contact with the buffer member (5), a rotational resistance due to friction acts on the ear thread bobbin (2). The rotation of 2) can be suppressed and the over-rotation of the ear thread bobbin (2) can be suppressed, the excessive decrease in the tension of the ear thread can be prevented, and so-called ear loosening can be prevented.

  In particular, when the ratchet mechanism is adopted as the tension adjusting mechanism of the ear thread, the ear thread bobbin (by the re-engagement between the pawl (11) and the stop car (12) immediately when the tension of the ear thread becomes a predetermined value or less. Even if the restraint of 2) is not carried out, the rotation resistance of the ear thread bobbin (2) is suppressed by the rotational resistance due to friction, the over rotation of the ear thread bobbin (2) can be suppressed, and the tension of the ear thread is greatly reduced. Can be prevented.

  Since the buffer member (5) is formed of an oil-impregnated member and impregnated with a lubricant, the lubricant can be held for a long period of time, and the maintenance cycle can be prolonged. That is, the ear thread supply device (1) is configured to support the rotating ear thread bobbin (2) by the bobbin shaft (4) installed between the side walls (3a) of the bobbin holder (3). It is necessary to lubricate the sliding part by rotation, and conventionally, grease is regularly supplied to the sliding part. However, it is difficult to hold the grease for a long time even if the grease is supplied to the relatively rotating portion. In particular, in the case of a water jet loom, grease breakage is likely to occur at an early stage due to the influence of scattered water. Therefore, the current situation is that the grease supply work must be frequently performed. Therefore, by forming the buffer member (5) with an oil-impregnated member such as felt and impregnating with a lubricant such as grease, the grease oozes continuously from the buffer member (5) to the sliding portion, and the maintenance cycle is prolonged. Can be achieved.

  At least one of the bobbin holder (3) and the ear thread bobbin (2) provided with the buffer member (5) is closer to the axial center side of the bobbin shaft (4) than the buffer member (5), and the side wall (3a) of the bobbin holder (3). Alternatively, since it has at least a part of the end face (2b) of the ear thread bobbin (2), that is, in the radial direction of the bobbin shaft (4), the side wall (3a) of the bobbin holder (3) or the inner side of the buffer member (5) Since a part of the end face (2b) of the ear thread bobbin (2) exists, even if the shock absorbing member (5) is worn and the protruding portion of the shock absorbing member (5) disappears, the side wall (3a) Alternatively, part of the end surface (2b) regulates the movement of the ear thread bobbin (2) in the axial direction. For this reason, a gap more than the initially set gap is generated between the side wall (3a) of the bobbin holder (3) and the end surface (2b) of the ear thread bobbin (2) due to wear of the buffer member (5). No, vibrations of the ear thread bobbin (2) having an amplitude that is initially planned will not occur.

  The side wall (3a) of the bobbin holder (3) is configured to include a bearing member (6) for supporting the bobbin shaft (4), and the bearing member (6) is a through-hole into which the bobbin shaft (4) is inserted ( 6g), a support surface (6e) facing the ear thread bobbin (2) and positioning and supporting the buffer member (5), and a bobbin shaft (6b) closer to the axis of the bobbin shaft (4) than the support surface (6e) 4) projecting part (6h) projecting toward the ear thread bobbin (2) side than the support surface (6e) in the axial direction of 4), and the buffer member (5) of the projecting part (6h) Since it provided so that it might protrude from the end surface (6b) facing an ear thread bobbin (2), in addition to the effect of the invention mentioned above, a bobbin shaft (4) can be received with a wider support surface by a bearing member (6). And the centrifugal force of the planetary motion and the tension of the ear thread Effect of increasing the support rigidity of the bobbin shaft (4) with respect to the vibration of the selvage bobbin due to their (2) is obtained.

  Since the buffer member (5) is provided on at least one of the side wall (3a) of the bobbin holder (3) and the ear thread bobbin (2) and is in contact with the other, the axial direction of the ear thread bobbin 2 is Vibration can be eliminated. Moreover, a rotational resistance can be continuously applied to the ear thread bobbin (2).

It is the front view which made a part of ear thread supply device of the present invention a section. It is detail sectional drawing of the bearing part in the ear thread supply apparatus of this invention. It is detail sectional drawing of the bearing part in the ear thread supply apparatus of the other Example of this invention. It is detail sectional drawing of the bearing part in the ear thread supply apparatus of the other Example of this invention. It is detail sectional drawing of the bearing part in the ear thread supply apparatus of the other Example of this invention. It is a whole perspective view of the conventional planetary ear assembly apparatus. It is the front view which made a part of conventional ear thread supply apparatus a section. It is sectional drawing which looked at the conventional ear thread supply apparatus using a ratchet mechanism from the side.

  FIG. 1 shows an embodiment of an ear thread supply device 1 for a planetary ear assembly device in a loom of the present invention. In summary, the ear thread supply device 1 has an ear thread bobbin 2 around which the ear thread 20 is wound, a bobbin holder 3 that rotatably holds the ear thread bobbin 2 via the bobbin shaft 4, and a constant tension of the ear thread 20. There are tension adjusting mechanisms (stopping pawl 11, stop car 12, passive arm 14, tensor arm 15, etc.) that keep the range. The entire configuration of the planetary ear assembly device to which the ear thread supply device 1 is attached is the same as that of the conventional planetary ear assembly device shown in FIG.

  The ear thread bobbin 2 has a cylindrical body part 2d around which the ear thread 20 is wound, and a pair of flanges 2c that are formed at both ends of the body part 2d and guide the ear thread 20. Bobbin bushes 2a as slide bearings are fitted into the shaft core portions at both ends of the ear thread bobbin 2, and a through hole 2g having substantially the same diameter as the bobbin shaft 4 is formed in the shaft core portion of the bobbin bush 2a. The bobbin shaft 4 can be inserted.

  The bobbin holder 3 has a pair of side walls 3a, and a bearing member 6 that supports the bobbin shaft 4 is attached to each of the support plates 3c constituting a part of the pair of side walls 3a. The bobbin holder 3 supports both ends of the bobbin shaft 4 penetrating the ear thread bobbin 2 by the pair of bearing members 6, and rotatably supports the ear thread bobbin 2. Therefore, in this embodiment, the bearing member 6 constitutes a part of the side wall 3 a of the bobbin holder 3.

  The tension adjusting mechanism that keeps the tension of the ear thread 20 within a certain range is composed of a ratchet mechanism (stopping pawl 11, stop car 12), a passive arm 14, a tensor arm 15, and the like. 8 are the same as those described in paragraphs [0016] to [0023], and are therefore given the same reference numerals, and are not described here.

  FIG. 2 shows an enlarged view of one of the pair of bearing members 6 of the ear thread supply device 1 of the present invention. The bearing member 6 includes a bobbin holder bush 6a as a bearing member 6 main body and a nut 6i for fixing the bobbin holder bush 6a to the support plate 3c of the bobbin holder 3. The bobbin holder bush 6a has a cylindrical body portion 6c and a bowl-shaped head portion 6d formed at one end of the body portion 6c, and a male screw to which a nut 6i is fastened to the outer periphery of the body portion 6c. Is formed. The support plate 3c of the bobbin holder 3 is formed with a through hole having substantially the same diameter as the body portion 6c. The body portion 6c is inserted into the through hole from the inside of the bobbin holder 3, and in the inserted state, A part of the portion 6c (male screw portion) protrudes outside the support plate 3c. A nut 6i is fastened to the protruding portion, and the support plate 3c of the bobbin holder 3 is sandwiched between the head 6d and the nut 6i. In this way, the bobbin holder bush 6 a is fixed to the support plate 3 c of the bobbin holder 3.

  A through hole 6g having substantially the same diameter as the bobbin shaft 4 is formed in the axial center of the bobbin holder bush 6a, and the bobbin shaft 4 is inserted into the through hole 6g. Therefore, the bobbin shaft 4 is supported by the support plate 3c of the bobbin holder 3 via the bobbin holder bush 6a.

  In this embodiment as well, the bobbin shaft 4 can be inserted into and removed from one side of the bobbin holder 3 in the through-hole 6g, similarly to the conventional ear thread supply device 51 shown in FIGS. Briefly described with reference to FIG. 1, the bobbin shaft 4 has a bowl-shaped shaft head 4 a at one end thereof, and in a state where the bobbin shaft 4 is inserted into the through hole 6 g, the shaft head 4 a The bobbin holder bush 6a comes into contact with the end surface of the step formed at the tip of the male screw portion. A leaf spring-like pressing member 17 is provided on one of the pair of side walls 3a, and the shaft head 4a of the bobbin shaft 4 inserted into the through hole 6g is pressed against the bobbin holder bush 6a (bobbin holder The bobbin shaft 4 is held by the bobbin holder 3 in a state in which it does not rotate easily by being sandwiched between the bush 6a and the pressing member 17).

  Returning to FIG. An annular groove 6k coaxial with the through hole 6g is formed on the end surface of the head 6d of the bobbin holder bush 6a facing the ear thread bobbin 2 (bobbin bush 2a). The buffer member 5 is fitted in the groove 6k, is positioned and supported in the radial direction of the bobbin shaft 4 by the side surface of the groove 6k, and is positioned and supported in the axial direction of the bobbin shaft 4 by the bottom surface of the groove 6k. That is, the bottom surface of the groove 6 k corresponds to a “support surface (6 e)” for positioning and supporting the buffer member 5 in the axial direction of the bobbin shaft 4. The buffer member 5 may be fixed to the support surface 6e with an adhesive or the like, or may not be particularly fixed unless it falls off.

  In the illustrated bobbin holder bush 6a, the groove 6k in which the buffer member 5 is fitted is configured such that a part of the bobbin holder bush 6a is interposed between the groove 6k and the inner peripheral surface of the through hole 6g in the radial direction of the bobbin shaft 4. Is formed. In other words, the bobbin holder bush 6a has a protruding portion 6h that protrudes toward the ear thread bobbin 2 from the support surface 6e on the axial center side (inner side in the radial direction) of the bobbin shaft 4 with respect to the support surface 6e. The outer peripheral surface of the protruding portion 6h forms one side surface of the groove 6k. In the state where the buffer member 5 is inserted into the groove 6k, the inner peripheral surface of the through hole in the annular buffer member 5 is fitted to the outer peripheral surface of the protruding portion 6h. Therefore, in the illustrated configuration, a part of the bobbin holder bush 6a that forms a part of the side wall 3a of the bobbin holder 3 is present on the axial center side of the bobbin shaft 3 with respect to the buffer member 5 fitted in the groove 6k. It has become. The protrusion 6 h has an end surface 6 b that faces the end surface 2 b of the ear thread bobbin 2.

  The buffer member 5 is made of a flexible material having a buffer performance, and is made of felt in this embodiment. The dimension (thickness) in the axial direction of the buffer member 5 is larger than the depth dimension of the groove 6k (= dimension in the axial direction of the bobbin shaft 4 of the protruding portion 6h), and protrudes in a state of being fitted in the groove 6k. The projection 6b projects from the end surface 6b of the portion 6h toward the ear thread bobbin 2 by a predetermined amount. As a result, even if the ear thread bobbin 2 vibrates in the axial direction along with the planetary movement of the ear thread supply device 1, the ear thread bobbin 2 and the bobbin holder bush 6a collide with each other via the buffer member 5, and at the time of the collision The buffer member 5 is elastically deformed to absorb energy caused by the collision. The shock-absorbing function of the shock-absorbing member 5 reduces the impact at the time of collision, and prevents the ear thread supply device 1 from being damaged. The protruding amount of the buffer member 5 is set to be smaller than the gap 21 between the bobbin holder bush 6a and the ear thread bobbin 2 (bobbin bush 2a), and the buffer member 5 and the bobbin bush 2a A gap 22 is formed between them.

  Further, when the bobbin bush 2 a of the rotating ear thread bobbin 2 contacts the buffer member 5, rotational resistance due to friction acts on the ear thread bobbin 2. The braking function of the buffer member 5 by this rotational resistance suppresses over-rotation of the ear thread bobbin 2, prevents the ear thread 20 from being excessively fed and the tension of the ear thread 20 from excessively decreasing, and so-called ear looseness is prevented. Is prevented.

  In particular, in this embodiment, a ratchet mechanism (stopper 11, stop vehicle 12) is adopted as the tension adjusting mechanism of the ear thread 20 (see FIGS. 1 and 7), and when the tension of the ear thread 20 is small, The pawl 11 attached to the bobbin holder 3 and the stop wheel 12 fixed to the ear thread bobbin 2 are engaged to stop the rotation of the ear thread bobbin 2 to increase the tension. When the tension of the ear thread 20 increases, the pawl is stopped. 11 and the stop wheel 12 are disengaged to allow the ear thread bobbin 2 to rotate, thereby reducing the tension and keeping the tension within a certain range.

  In this tension adjusting mechanism, the ear thread bobbin 2 is not stopped by re-engagement of the pawl 11 and the stop car 12 immediately when the tension of the ear thread 20 becomes a predetermined value or less, that is, the ear thread. Even if the tension adjusting mechanism may not be able to follow the fluctuation of the tension, a certain amount of rotational resistance acts on the ear thread bobbin 2 by the buffer member 5, and this rotational resistance suppresses the over rotation of the ear thread bobbin 2. Therefore, the tension of the ear thread 20 can be prevented from excessively decreasing, and so-called ear loosening can be prevented.

  As described above, in this embodiment as well, the buffer member 5 and the bobbin so that the ear thread bobbin 2 can be quickly attached to the bobbin holder 3 as in the conventional planetary ear assembly device 51 shown in FIG. A gap 22 is provided between the bush 2a. For this reason, the buffer member 5 and the bobbin bush 2a are not always in contact with each other, and it seems that the buffer member 5 cannot give rotational resistance to the ear thread bobbin 2. However, even if the gap 22 exists, the ear thread bobbin 2 is in one side wall 3a (the buffer member 5) during one rotation of the ear thread supply apparatus 1 due to the centrifugal force accompanying the revolution of the ear thread supply apparatus 1. ), The rotation resistance can be intermittently applied to the ear thread bobbin 2 even when the gap 22 exists as in the present embodiment.

Further, in this embodiment, by impregnating a lubricant to the buffer member 5, it is imparted a lubricating function to lubricate the sliding portion of the bobbin bush 2a and the bobbin shaft 4 of the selvage bobbin 2 to the buffer member 5. That is, if the buffer member 5 is impregnated with the lubricant, the lubricant oozes out from the buffer member 5 when the buffer member 5 and the bobbin bush 2a are in contact with each other, and the sliding portions of the bobbin bush 2a and the bobbin shaft 4 are in contact. Lubricant gets in. Thereby, the sliding part of the bobbin bush 2a and the bobbin shaft 4 can be continuously lubricated. In particular, in the water jet loom, conventionally, the lubricant was washed away by the scattered water, and the lubricant was easily cut out early, but according to the present invention, the lubricant can be continuously supplied, Eliminates the need for frequent lubricant supply operations.

  In addition, when a lubricant having a high viscosity such as grease is used as the lubricant to be impregnated in the buffer member 5, the following effect can be expected in relation to the braking function of the buffer member 5 described above in addition to the lubrication function. it can. That is, the viscous resistance of a lubricant with high viscosity is proportional to the speed. For this reason, when the lubricant interposed between the buffer member 5 and the bobbin bush 2a moves in accordance with the relative movement of the buffer member 5 and the bobbin bush 2a, the lubricant corresponds to the rotational speed of the ear thread bobbin 2. A braking force is applied to the ear thread bobbin 2. Thereby, the rotational behavior of the ear thread bobbin 2 can be made smooth without sudden braking and rapid acceleration, and the braking function of the buffer member 5 can be stably exhibited.

  In the above description, the remarkable functions (buffer function, braking function, lubrication function) and effects of this embodiment obtained by providing the buffer member 5 have been described. These functions and effects are achieved by holding the bobbin shaft 4 directly on the side wall 3a of the bobbin holder 3 without the bearing member 6 and attaching the buffer member 5 to the end surface 3b of the side wall 3a of the bobbin holder 3 facing the ear thread bobbin 2. Can be obtained as well. In the following description, specific functions and effects that can be further obtained by the structure of the bearing member 6 provided in the present embodiment will be listed.

  [1] As described above, in this embodiment, the buffer member 5 is fitted in the groove 6k of the bobbin holder bush 6a, and most of the cushion member 5 is accommodated in the groove 6k. For this reason, there are few parts exposed outside and the lubricant impregnated in the buffer member 5 is difficult to dry. In addition, even when the present invention is used in a water jet loom, it is difficult to be affected by scattered water. For this reason, the lubricant can be held in the buffer member 5 for a long period of time, and the lubricant can be supplied to the sliding portion for a long period of time, so that the maintenance cycle can be prolonged.

  [2] As described above, the bobbin holder bush 6 a has the protruding portion 6 h on the axial center side of the bobbin shaft 4 with respect to the buffer member 5. The protruding portion 6 h protrudes toward the ear thread bobbin 2 from the support surface 6 e and has an end surface 6 b that faces the end surface 2 b of the ear thread bobbin 2. In this way, a part of the protruding portion 6h of the bobbin holder bush 6a exists on the radially inner side of the buffer member 5, and the end surface 6b facing the bobbin bush 2a exists on the radially inner side of the buffer member 5. As a result, the following effects can be obtained.

  In order to make the effect of the present invention by the buffer member 5 more prominent, the area of the contact surface 5a of the buffer member 5 is increased as much as possible, and the contact between the buffer member 5 and the ear thread bobbin 2 (bobbin bush 2a). It is preferable to increase the contact area. For this reason, in this embodiment, as shown in FIG. 2, the outer diameter of the buffer member 5 is set to the end surface closest to the bobbin holder bush 6a in the axial direction of the bobbin bush 2a (the end surface contacting the buffer member 5, hereinafter referred to as “ It is formed larger than the diameter of the abutting end surface 2f ”), and the abutting area between the buffer member 5 and the ear thread bobbin 2 is increased.

  In the configuration of this embodiment, it is assumed that the inner peripheral side of the buffer member 5 is formed so as to reach the through hole 6g of the bobbin holder bush 6a. That is, it is assumed that the protruding portion 6h is eliminated and the contact surface 5a of the buffer member 5 is formed so as to cover all the contact end surface 2f of the ear thread bobbin 2 to the inside in the radial direction. In such a case, the position of the contact surface 5a of the buffer member 5 changes to the outside of the bobbin holder 3 in the axial direction due to wear or deformation due to long-term use of the buffer member 5, and the protruding portion of the buffer member 5 disappears. A situation may occur in which the contact surface 5a is retracted to the inside of the groove 6k.

  When such a situation occurs, the gap 22 between the contact surface 5a of the buffer member 5 and the contact end surface 2f of the ear thread bobbin 2 is the maximum gap assumed at the time of design, that is, the bobbin holder bush 6a, It becomes larger than the gap 21 between the contact end surface 2f of the ear thread bobbin 2, and instead, the ear thread bobbin 2 is vibrated in the axial direction larger than the conventional planetary ear assembly device.

  Therefore, in the present embodiment, the end face 6b that faces the abutting end face 2f of the bobbin bush 2a is present on the radially inner side of the buffer member 5, and the protrusion 6h that restricts the movement of the ear thread bobbin 2 in the axial direction. Therefore, even if the buffer member 5 is worn due to contact with the ear thread bobbin 2 and the protruding part on the ear thread bobbin 2 side of the buffer member 5 is deformed and disappears, the protruding part 6h is connected to the end surface 2b of the ear thread bobbin 2. It contacts and regulates the movement of the ear thread bobbin 2 in the axial direction. As a result, it is possible to prevent a situation in which a gap larger than the initially set gap 21 is generated between the bobbin holder 3 and the ear thread bobbin 2 due to the wear of the buffer member 5, and the ear thread bobbin having an amplitude larger than the initially planned amplitude can be prevented. 2 can be prevented from occurring.

  When the protruding portion 6h comes into contact with the end surface 2b of the ear thread bobbin 2, that is, when the contact surface 5a of the buffer member 5 is retracted to the end surface 6b of the protruding portion 6h due to wear, the buffer member It is preferable to replace 5. Further, the protruding amount of the protruding portion 6h from the support surface 6e is set to a thickness that allows the buffer member 5 to exhibit a buffering function, and before the protruding portion 6h contacts the end surface 2b of the ear thread bobbin 2, the buffer member 5 is used. Is appropriately exchanged, the buffer function of the buffer member 5 can be maintained.

  By the way, as described above, in this embodiment as well, the dimension between the pair of side walls 3a (bobbin holder bush 6a) of the bobbin holder 3 is slightly larger than the width dimension of the ear thread bobbin 2 as in the conventional planetary ear assembly apparatus. Further, the amount of protrusion of the buffer member 5 from the bobbin holder bush 6a is made smaller than the gap 21 between the bobbin holder bush 6a and the ear thread bobbin 2 (bobbin bush 2a), and the buffer member 5 and the bobbin bush A gap 22 is formed between 2a and 2a. When considering the vibration in the axial direction of the ear thread bobbin 2, it is preferable that the gap 22 as described above does not exist. However, in consideration of workability when the ear thread bobbin 2 is mounted on the bobbin holder 3, if there is no gap between the buffer member 5 and the bobbin bush 2a, the mounting operation may not be performed smoothly. The gap 22 is unavoidably present. However, such a gap 22 is preferably the minimum necessary in consideration of workability.

  [3] As described above, the groove 6k for attaching the buffer member 5 is formed such that a part (projecting portion 6h) of the bobbin holder bush 6a exists inside the buffer member 5 in the radial direction. In other words, the groove 6k is formed in the through hole 6g of the bobbin holder bush 6a so that the felt as the buffer member 5 is not exposed. This is because if the felt as the buffer member 5 is exposed in the through hole 6g, it becomes resistance when the bobbin shaft 4 is inserted into the through hole 6g, and it becomes difficult to attach the ear thread bobbin 2. It is for preventing. According to the configuration of this embodiment shown in FIG. 2, since the felt of the buffer member 5 is not exposed in the through hole 6g, the bobbin shaft 4 can be inserted smoothly, and the ear thread bobbin 2 can be easily attached. .

  [4] Further, since a part of the bobbin holder bush 6a (projecting portion 6h) is present on the radially inner side of the buffer member 5, the following effects can be obtained.

  Both ends of the bobbin shaft 4 are supported by the bobbin holder bush 6a. However, the bobbin shaft 4 is bent due to the influence of vibration, and as a result, the ear thread bobbin 2 may vibrate vigorously in the radial direction. This causes damage to the ear thread bobbin 2. Therefore, it is necessary to suppress the bending of the bobbin shaft 4 as much as possible. For this purpose, it is desirable to shorten the distance between the support points of the bobbin shaft 4 as much as possible and to increase the support rigidity of the bobbin shaft 4 of the bobbin holder bush 6a. It is.

  Temporarily, a part (projection part 6h) of the bobbin holder bush 6a does not exist inside the shock absorbing member 5 in the radial direction, and the inner peripheral side of the shock absorbing member 5 is exposed to the through hole 6g (the through hole formed in the shock absorbing material 5). And the diameter of the through-hole 6g of the bobbin holder bush 6a are the same), a part of the bobbin shaft 4 is supported by the buffer member 5. However, as described above, the buffer member 5 is formed of a flexible material having a buffer performance, and hardly functions as a support member because of its low rigidity. Therefore, the substantial support of the bobbin shaft 4 is performed only by the through-hole 6g of the bobbin holder bush 6a located outside the bobbin holder 3 from the buffer member 5, and the distance between the support points of the bobbin shaft 4 is increased. End up. In addition, the axial dimension of the through hole 3g is reduced by the presence of the buffer member 5, and the support surface of the bobbin shaft 4 cannot be made wider in the axial direction. Therefore, sufficient support rigidity for suppressing the bending of the bobbin shaft 4 cannot be obtained.

  On the other hand, as shown in FIG. 2, if a part of the bobbin holder bush 6a (projecting portion 6h) is present on the radially inner side of the buffer member 5, the buffer member 5 is also present in the axial direction. Since the bobbin shaft 4 is supported by the bobbin holder bush 6a, the distance between the support points can be shortened compared to the configuration in which the buffer member 5 is exposed to the through hole 6g, and the support surface of the bobbin shaft 4 is axially Therefore, it is possible to obtain sufficient support rigidity to suppress the bending of the bobbin shaft 4.

  As mentioned above, although one Example of the ear thread supply apparatus 1 of this invention was described with reference to FIG. 1 and FIG. 2, the structure of the ear thread supply apparatus 1 by this invention is not limited to this.

  For example, in the embodiment shown in FIG. 2, the protruding portion 6h of the bobbin holder bush 6a is formed in a thin cylindrical shape, but the protruding portion 6h is not thickened to the extent that the buffering function and the braking function of the buffer member 5 are not hindered. If the thickness is set, the support rigidity of the bobbin shaft 4 can be further increased while maintaining the effects of the present invention. For example, as shown in FIG. 3, by increasing the thickness of the protruding portion 6h and increasing the diameter of the flange portion of the bobbin bush 2a, a large contact area between the buffer member 5 and the bobbin bush 2a can be secured. The support rigidity of the bobbin shaft 4 can be increased while maintaining the buffer function and the brake function of the buffer member 5.

  In the example shown in FIG. 3, there is no portion corresponding to the outer peripheral side surface of the groove 6k in the embodiment shown in FIG. 2, and the buffer member 5 is positioned by the support surface 6e facing the ear thread bobbin 2 and the protruding portion 6h. It is supported. As described above, the positioning and supporting form of the buffer member 5 in the bearing member 6 is appropriately changed depending on the thickness of the buffer member 5, the area of the contact surface 5a, the size restriction of the bearing member 6, and the like. For example, if the groove 6k is formed deeply and the thickness of the buffer member 5 is increased as in the embodiment shown in FIG. 2, the buffer function of the buffer member 5 can be enhanced. Further, as in the embodiment shown in FIG. 3, if the support surface 6e is formed wide and the area of the contact surface 5a of the buffer member 5 is increased, the braking function of the buffer member 5 can be enhanced.

  Although not shown, if the protrusion 6h of the bobbin holder bush 6a is provided on the outer side in the radial direction of the buffer member 5, a larger contact area between the buffer member 5 and the bobbin bush 2a can be secured. However, when considering the braking function of the buffer member 5, the braking torque increases when the buffer member 5 and the bobbin bush 2a are brought into contact with each other as far as possible in the radial direction. Therefore, as in the embodiment shown in FIGS. The braking function is higher when the protrusion 6 h is provided on the radially inner side of the buffer member 5.

  The shock-absorbing member 5 is not limited to the one of the felt of the above-described embodiment, and has a shock-absorbing performance and imparts excessive rotational resistance that hinders the rotation of the ear thread bobbin 2 when the ear thread 20 is pulled out. Otherwise, any material may be used. Examples include those formed of a resin material, a rubber-based material or the like as described above. Moreover, if it has oil impregnation performance, a nonwoven fabric, a porous synthetic resin, etc. other than the said felt are mentioned. Furthermore, the shape of the buffer member 5 is not limited to a continuous annular shape, and may be a shape that partially faces the contact end surface 2 f of the ear thread bobbin 2. Further, a plurality of buffer members 5 that partially face the abutting end surface 2 f may be provided around the bobbin shaft 4. The shape of the buffer member 5 is not limited to a circular ring shape, and may be a polygonal shape.

  In the embodiment shown in FIGS. 1 to 3, the buffer member 5 is provided on the side wall 3a side (bobbin holder bush 6a) of the bobbin holder 3, but instead of this, as shown in FIG. It is good also as what provides the buffer member 5 in the side (bobbin bush 2a).

  In the example shown in FIG. 4, an annular groove 2k coaxial with the through hole 2g is formed on the end surface 2b of the bobbin bush 2a, and an annular buffer member 5 is fitted in the groove 2k. The buffer member 5 is positioned and supported in the radial direction of the bobbin shaft 4 by the side surface of the groove 2k, and is positioned and supported in the axial direction of the bobbin shaft 4 by the bottom surface (support surface 2e) of the groove 2k. The contact surface 5a of the buffer member 5 faces the contact end surface 6f of the bobbin holder bush 6a.

  In the illustrated bobbin bush 2a, the groove 2k into which the buffer member 5 is fitted is formed so that a part of the bobbin bush 2a is interposed between the inner peripheral surface of the through hole 2g in the radial direction of the bobbin shaft 4. Has been. In other words, the bobbin bush 2a has a protruding portion 2h that protrudes closer to the side of the side wall 3a of the bobbin holder 3 than to the support surface 2e on the axial center side of the bobbin shaft 4 relative to the support surface 2e. Moreover, the protrusion part 2h has the end surface 2m facing the side wall 3a. Therefore, in the illustrated configuration, the end surface 2m of the projecting portion 2h, which is a part of the end surface 2b of the bobbin bush 2a facing the side wall 3a of the bobbin holder 3, is located on the bobbin shaft 3 rather than the buffer member 5 fitted in the groove 2k. It exists on the shaft core side.

  The protrusion 2h is formed such that the dimension of the bobbin shaft 4 in the axial direction (= the amount of protrusion of the protrusion 2h from the support surface 2e) is smaller than the dimension (thickness) of the buffer member 5 in the axial direction. Therefore, the buffer member 5 protrudes from the end surface 2m of the protrusion 2h toward the side wall 3a. With the above configuration, the same effect as that of the embodiment shown in FIGS. In addition, when the buffer member 5 is worn and the protruding portion 6h of the bobbin holder bush 6a contacts the protruding portion 2h of the bobbin bush 2a, it is preferable to replace the buffer member 5. In the present embodiment, one or both of the protruding portion 6h of the bobbin holder bush 6a and the protruding portion 2h of the bobbin bush 2a may be omitted.

  In the embodiment shown in FIG. 5, the bearing member 6 is omitted, the bobbin shaft 4 is directly held by the side wall 3a of the bobbin holder 3, and the buffer member 5 is provided on the end surface 3b of the side wall 3a of the bobbin holder 3 facing the ear thread bobbin 2. ing. In addition, you may provide the buffer member 5 in the end surface 2b of the ear thread bobbin 2 facing the side wall 3a of the bobbin holder 3. FIG.

  In the embodiment described above, the gap 22 is formed between the buffer member 5 and the bobbin bush 2a so that the ear thread bobbin 2 can be quickly attached to the bobbin holder 3. However, the gap 22 should be filled. Alternatively, the buffer member 5 may protrude from the bobbin holder bush 6a. In other words, the gap 22 may be eliminated, and the buffer member 5 may be in a state of always contacting the bobbin bush 2a. By doing so, vibrations in the axial direction of the ear thread bobbin 2 can be eliminated. Moreover, the braking force by the buffer member 5 can always be applied to the ear thread bobbin 2. Even in this case, if the buffer member 5 is an easily deformable member such as felt, the buffer member 5 is deformed even when the ear thread bobbin 2 comes into contact with the buffer member 5 at the time of insertion. It will not be damaged.

DESCRIPTION OF SYMBOLS 1 Ear thread supply apparatus 2 Ear thread bobbin 2a Bobbin bush 2b End surface 2c Flange 2d Body part 2e Support surface 2f Contact end surface 2g Through hole 2h Protrusion part 2k Groove 2m End surface 3 Bobbin holder 3a Side wall 3b End surface 3c Support plate 3g Through hole 4 Bobbin Shaft 4a Shaft head 5 Buffer member 5a Contact surface 6 Bearing member 6a Bobbin holder bush 6b End surface 6c Body portion 6d Head portion 6e Support surface 6f Contact end surface 6g Through hole 6h Projection portion 6i Nut 6k Groove 7 Drive gear 8 Carrier gear 9 Planetary gear 9a Idle gear 10 Sun gear 11 Stopper 12 Stop wheel 13 Fixed shaft 13a Rotating shaft 14 Passive arm 14a Yarn guide 15 Tensor arm 15a Yarn guide 15b Engagement part 16 Ear thread guide 17 Presser member 20 Ear thread 21 Gap 22 Gap 51 Ear thread supply device 52 Ear thread bobbin 52g Through hole 3 bobbin holder 53a side walls 53g through hole

Claims (4)

An ear thread supply device (1) for a planetary ear assembly device used in a loom, including a bobbin holder (3) and an ear thread bobbin (2), between a pair of opposing side walls (3a) of the bobbin holder (3) In the ear thread supply device (1) for the planetary ear assembly device that rotatably supports the ear thread bobbin (2) via the bobbin shaft (4),
At least one of the bobbin holder (3) and the ear thread bobbin (2) is the side wall (3a) of the bobbin holder (3) or the end surface (2b) of the ear thread bobbin (2) facing the side wall (3a). A buffer member (5) protruding from the side wall (3a) and interposed between the end face (2b) ,
The buffer member (5) is formed of an oil-impregnated member impregnated with a lubricant .   At least one of the bobbin holder (3) and the ear thread bobbin (2) on which the buffer member (5) is provided is closer to the side wall (the side of the bobbin shaft (4) than the buffer member (5)). The ear thread supply device (1) for a planetary ear assembly device in a loom according to claim 1, characterized in that it has at least a part of 3a) or the end face (2b). The side wall (3a) of the bobbin holder (3) includes a bearing member (6) for supporting the bobbin shaft (4),
The bearing member (6) faces the through hole (6g) into which the bobbin shaft (4) is inserted and the end surface (2b) of the ear thread bobbin (2) and positions the buffer member (5). A supporting surface (6e) for supporting, and the bobbin shaft (4) on the axial center side of the bobbin shaft (4) with respect to the supporting surface (6e), and the ear thread bobbin with respect to the axial direction of the bobbin shaft (4). (2) having a protruding portion (6h) protruding toward the side,
The planet according to claim 2 , wherein the buffer member (5) is provided so as to protrude from an end surface (6b) of the protrusion (6h) facing the ear thread bobbin (2). Ear thread supply device (1) for the ear assembly device. The buffer member (5) is provided on at least one of the side wall (3a) of the bobbin holder (3) and the ear thread bobbin (2), and is provided in contact with the other. An ear thread supply device (1) for a planetary ear assembly device in a loom according to any one of claims 1 to 3 .

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