Water jet loom

Abstract

To provide a water jet loom capable of reducing an oil content contained in the discharged water as much as possible by preventing an old lubricant discharged from a housing of an intermediate support for supporting a rocking shaft from falling into a water receiving pan.SOLUTION: There is provided a water jet loom comprising: a beating device having a rocking shaft and an intermediate support for supporting the rocking shaft; and a water receiving pan, in which the intermediate support is a housing which has a built-in bearing and is formed so that an old lubricant is discharged to the outside by supplying a lubricant for lubricating the bearing. The beating device has a lubricant collecting mechanism for collecting a lubricant discharged from the housing. The collecting mechanism comprises a storage part which is disposed separately from the water receiving pan and can store the lubricant, and a lead-out pipe for guiding the lubricant discharged from the housing to the storage part.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a rocking shaft that is installed between a pair of side frames of a loom frame, and an intermediate support portion that supports the rocking shaft between the side frames. The intermediate support portion is supported by a beam member that is installed between the pair of side frames. and a water receiving pan that is provided below the rocking shaft and receives water sprayed from the weft insertion nozzle, wherein the intermediate support part is a housing part that houses a bearing, the housing part being configured to be able to supply a lubricant for lubricating the bearing to the inside and configured so that old lubricant is discharged to the outside as the lubricant is supplied. [Background technology]

[0002] In a loom, a beating device that beats an inserted weft thread includes a rocking shaft mounted on a side frame of the loom frame, multiple sley swords attached to the rocking shaft, a reed holder supported by the multiple sley swords, and a reed fixed to the reed holder. In the beating device, the rocking shaft is rotated in conjunction with the rotation of the main shaft of the loom, causing the reed to swing and beating the weft.

[0003] In such a beating device, the rocking shaft is supported at both ends by the support shafts provided on both side frames, as described above. In addition, in a beating device, the rocking shaft is supported at both ends by the loom frame in a manner connected to the support shafts as described above, but in addition, there is also known a device configured to support the rocking shaft at its intermediate portion by an intermediate support portion supported by a beam member installed on the side frames (for example, Patent Document 1).

[0004] The intermediate support portion is configured to have a housing portion in which a bearing is mounted, and the intermediate portion of the rocking shaft is rotatably supported by the bearing mounted in the housing portion. The housing portion in which the bearing is mounted is filled with a lubricant such as grease so that the bearing can smoothly support the rotation of the rocking shaft.

[0005] Furthermore, the housing is configured so that lubricant can be supplied to the inside thereof through an oil supply pipe or the like (for example, Patent Document 2), and the smooth rotation support described above can be maintained for a long period of time by supplying new lubricant while the loom is in operation or when the loom is finished. Note that, as also disclosed in Patent Document 2, the housing is provided with a waste oil groove or the like, and is configured so that as new lubricant is supplied, the (old) lubricant that had been filled up until that point is discharged as discharge lubricant. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] JP 2005-336669 A [Patent Document 2] JP 2004-205013 A Summary of the Invention [Problem to be solved by the invention]

[0007] In the conventional loom, the discharged lubricant discharged from the intermediate support part (housing part) by the supply of new lubricant as described above falls directly below the intermediate support part. If the loom is a water-jet loom, a water receiving pan (underpan) is provided at the lower part inside the loom frame to receive water that falls downward as the weft is inserted by the water jetted from the weft insertion nozzle, and the discharged lubricant that falls downward as described above falls into the water receiving pan. As a result, the water discharged from the water-jet loom contains a large amount of lubricant (oil). Therefore, the discharged water is treated (wastewater treatment) in the weaving factory, but when the water contains a large amount of oil, a lot of effort and cost are required for the wastewater treatment.

[0008] Therefore, an object of the present invention is to provide a water jet loom that can minimize the amount of oil contained in the discharged water by preventing the discharged lubricant from falling into the water receiving pan. [Means for solving the problem]

[0009] The present invention relates to a rocking shaft that is installed between a pair of side frames of a loom frame, and an intermediate support portion that supports the rocking shaft between the side frames. The intermediate support portion is supported by a beam member that is installed between the pair of side frames. and a water jet loom including a beating device for beating the inserted weft yarn, and a water receiving pan provided below the rocking shaft and receiving water jetted from the weft insertion nozzle, wherein the intermediate support part is a housing part that houses a bearing, the housing part being configured to be able to supply a lubricant for lubricating the bearing to the inside and configured so that old lubricant is discharged to the outside as the lubricant is supplied.

[0010] In order to achieve the above-mentioned object, the present invention is characterized in that, in the water injection loom on which it is based, the reed beating device is equipped with a lubricant recovery mechanism that recovers discharged lubricant, which is old lubricant discharged from the housing portion, and the lubricant recovery mechanism includes a storage portion provided separately from the water receiving pan and configured to be capable of storing lubricant, and an outlet pipe that leads the discharged lubricant discharged from the housing portion to the storage portion.

[0011] Furthermore, in such a water injection loom according to the present invention, the lubricant recovery mechanism may be configured to have a receiving portion provided below the housing portion for receiving the discharged lubricant, the receiving portion being connected to the discharge pipe, and the storage portion being provided below the receiving portion. Effect of the Invention

[0012] According to the present invention, the discharged lubricant discharged from the intermediate support part (housing part) of the beating device is collected by the lubricant collection mechanism without dropping into the water receiving pan, so that the discharged lubricant can be prevented from mixing with the water in the water receiving pan. This makes it possible to reduce the amount of oil contained in the discharged water as much as possible in the water jet loom, and as a result, it is possible to reduce the cost of wastewater treatment.

[0013] Also, by configuring the lubricant recovery mechanism to receive the discharged lubricant in the receiving section, the cost (manufacturing cost) involved in manufacturing a water injection loom equipped with the lubricant recovery mechanism can be reduced. More specifically, the housing section is designed such that the discharged lubricant is discharged from both sides of the section housing the bearings by supplying new lubricant as described above. Therefore, two outlet pipes are required for each housing section (intermediate support section) to directly guide the discharged lubricant to the storage section.

[0014] In contrast, by configuring the lubricant recovery mechanism to have a receiving portion provided below the housing portion to receive the discharged lubricant, the discharged lubricant discharged from the portion of the housing portion that accommodates the bearing is temporarily received by the receiving portion and then led to the storage portion by the outlet pipe connected to the receiving portion. Therefore, in this configuration, the number of outlet pipes per housing portion (intermediate support portion) can be one. And, with this configuration, not only the number of outlet pipes but also the configuration for supporting the outlet pipe and the configuration for leading the outlet pipe to the storage portion are required according to the one outlet pipe, so the configuration is further simplified and the manufacturing costs can be reduced accordingly. [Brief description of the drawings]

[0015] [Figure 1] 1 is a plan view of a water jet loom to which the present invention is applied. [Diagram 2] 1 is a side cross-sectional view of a water jet loom to which the present invention is applied. [Diagram 3] FIG. 4 is an explanatory diagram of a lubricant recovery mechanism according to the present invention. [Figure 4] 5 is an explanatory diagram (a cross-sectional view taken along line AA in FIG. 5) showing another example of the configuration of a lubricant recovery mechanism according to the present invention. [Diagram 5] 5 is an explanatory diagram (a cross-sectional view taken along line BB in FIG. 4) showing another example of the configuration of a lubricant recovery mechanism according to the present invention. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] An embodiment of a water jet loom according to the present invention will be described below with reference to Figs.

[0017] 1, the water jet loom L includes a weft insertion nozzle NZ fixedly attached to one of a pair of side frames 2, 2 of a frame 1. In the water jet loom L, the inserted weft yarn Y is beaten against a cloth fell CF of a fabric W by a reed 11 of a beating device described later.

[0018] In the water jet loom L, the frame 1 mainly consists of a pair of side frames 2, 2, which are connected by four beams 3a, 3b, 3c, 3d (Fig. 2). That is, in the frame 1, the four beams 3a, 3b, 3c, 3d are supported on the pair of side frames 2, 2. In the water jet loom L, a warp beam 6 for sending out warp threads T is provided on one side (rear side) in the front-to-rear direction and supported by both side frames 2, 2. Furthermore, a take-up beam 8 for taking up the woven fabric W is provided on the other side (front side) in the front-to-rear direction and supported by both side frames 2, 2.

[0019] Of the four beams, the beams 3a and 3b arranged on the take-up beam side 8 in the front-to-rear direction are arranged at different positions in the vertical direction, with the upper beam 3a being a so-called front top stay and the lower beam 3b being a so-called front bottom stay. The beams 3c and 3d arranged on the warp beam 6 side in the front-to-rear direction are also arranged at different positions in the vertical direction, with the upper beam 3c being a so-called rear top stay and the lower beam 3d being a so-called rear bottom stay.

[0020] The water jet loom L also includes a beating device 10 that rocks and drives a reed 11. In the beating device 10, the reed 11 is supported by a rocking shaft 14 via a reed holder 12 and a sley sword 13 (FIG. 3). The rocking shaft 14 is connected at both ends via coupling members to support shafts (not shown) provided in each side frame 2 so as to protrude inward. Thus, the rocking shaft 14 is provided between the side frames 2, 2 so as to extend in the weaving width direction, suspended between both support shafts.

[0021] In the beating device 10, the rocking shaft 14 is supported by both support shafts as described above, and furthermore, between the support shafts, it is supported by an intermediate support section 30 supported by the front top stay 3a. However, in this embodiment, the intermediate support section 30 is attached to a support plate 4 fixed to the front top stay 3a. The intermediate support sections 30 are provided at two locations spaced apart between the support shafts (side frames 2, 2).

[0022] More specifically, a plate-shaped support plate 4 is fixed to the front top stay 3a. The support plate 4 is a rectangular plate material when viewed in the thickness direction, and is formed as a member in which the dimensions of both end faces in the thickness direction in the long side direction (longitudinal direction) are slightly smaller than the longitudinal dimension of the front top stay 3a on the frame 1, and the dimensions in the short side direction are larger than the dimension of the front top stay 3a in the front-rear direction. The support plate 4 is fixed to the front top stay 3a in such a manner that one of the both end faces abuts against the lower surface of the front top stay 3a, with the long side direction aligned with the longitudinal direction (= weaving width direction) of the front top stay 3a. Therefore, the one end face of the support plate 4 becomes the surface (upper surface) facing upward on the loom.

[0023] However, the support plate 4 is fixed in a state where one side edge in the short side direction is aligned with the front end of the front top stay 3a in the front-rear direction. Therefore, the support plate 4 protrudes from the rear side of the front top stay 3a while being fixed to the front top stay 3a in this manner. Incidentally, the support plate 4 is fixed to the front top stay 3a by, for example, attachment using a screw member (bolt, etc.) or fastening by welding.

[0024] The intermediate support part 30 has a bearing 34a for rotatably supporting the rocking shaft 14, and is mainly composed of a housing part 34 that houses the bearing 34a. The intermediate support part 30 further has a base part 32 (only a part of which is shown) for mounting the housing part 34 in an upright position on the support plate 4. The intermediate support part 30 is mounted to the support plate 4 at the base part 32 by, for example, a screw member or the like.

[0025] In the intermediate support portion 30, the housing portion 34 has the bearing 34a mounted therein as described above, and is filled with a lubricant (grease) to facilitate the rotational support of the rocking shaft 14 by the bearing 34a. The housing portion 34 is configured so that a lubricant can be supplied to the inside thereof, similar to the conventional configuration. Specifically, the housing portion 34 is formed with a through hole (not shown) that penetrates from the outer circumferential surface to the inside thereof, and a supply port member 36 such as a grease nipple is attached by being fitted into the through hole.

[0026] As a result, the housing portion 34 is configured to be provided with a lubricant supply portion. A lubricant supplying device such as a grease gun is connected to the supply port member 36 via a hose or the like, so that the lubricant is supplied into the housing portion 34.

[0027] Furthermore, although details of the housing portion 34 are omitted, similar to the conventional configuration, when new lubricant is supplied to its interior as described above, the lubricant that had been filled therein is discharged from both ends as discharge lubricant.

[0028] The water jet loom L also includes a water receiving pan 5 that receives water jetted from the weft insertion nozzle NZ (FIG. 2). The water receiving pan 5 is formed as a bathtub-shaped member having a substantially rectangular bottom. The water receiving pan 5 is provided below the rocking shaft 14 and between the front bottom stay 3b and the rear bottom stay 3d. In plan view, the water receiving pan 5 is provided in a range that spans between the side frames 2, 2 in the weaving width direction and in a range that spans between the front bottom stay 3b and the rear bottom stay 3d in the front-rear direction.

[0029] In the water jet loom as described above, the present invention provides a lubricant recovery mechanism for recovering discharged lubricant discharged from the housing section by the beating device. The lubricant recovery mechanism includes a storage section provided separately from the water receiving pan and configured to store the lubricant, and an outlet pipe for leading the discharged lubricant discharged from the housing section to the storage section. In this embodiment, the lubricant recovery mechanism includes a receiving section provided below the housing section for receiving the discharged lubricant, the receiving section being connected to the outlet pipe, and the storage section being provided below the receiving section. Details of such a lubricant recovery mechanism are as follows.

[0030] As described above, the lubricant recovery mechanism 40 is configured to include the receiving portion 42, the storage portion 44, and the outlet pipe 46. First, regarding the receiving portion 42, in this embodiment, the receiving portion 42 is formed as a part of the support plate 4 described above.

[0031] More specifically, in the support plate 4 to which the intermediate support parts 30 are attached as described above, a recess is formed in a portion located below the housing part 34 such that the recess is recessed more than the surrounding portion. In this embodiment, the portion of the support plate 4 including the recess functions as the receiving part 42. The receiving part 42 is formed below each intermediate support part 30, has a rectangular shape in a plan view, and is large enough to include the range in which the housing part 34 is present.

[0032] Moreover, a through hole (discharge hole) 42a is formed in the receiving portion 42 so as to open to the bottom surface of the recess and to penetrate the support plate 4. In the illustrated example, the discharge hole 42a is formed in the recess at approximately the center in the long side direction of the support plate 4 and toward the front in the short side direction of the support plate 4. In the receiving portion 42, the bottom surface of the recess is preferably formed so as to be inclined toward the discharge hole 42a.

[0033] Moreover, the storage section 44 is a tray-shaped member, and is provided separately from the water receiving pan 5. The storage section 44 has a rectangular bottom plate, and is formed so that the dimension of the long side of the bottom plate is larger than the dimension of the receiving section 42 (the recess) in the long side direction of the support plate 4. Moreover, two storage sections 44 are provided, each disposed below the receiving section 42 in the up-down direction. Moreover, in the illustrated example, each storage section 44 is provided so as to be located directly below the corresponding receiving section 42.

[0034] Each storage section 44 is arranged such that the long side direction of the bottom plate coincides with the long side direction of the support plate 4, and is attached to the front bottom stay 3b located below the support plate 4. Each storage section 44 is attached to the front bottom stay 3b by a screw member or the like, and each storage section 44 is detachable from the front bottom stay 3b. In the illustrated example, a part of the water receiving pan 5 is interposed between the storage section 44 and the front bottom stay 3b.

[0035] In addition, between each receiving portion 42 and the corresponding storage portion 44, a discharge pipe 46 is provided for conducting the discharged lubricant received by the receiving portion 42 into the storage portion 44. Each discharge pipe 46 is a conduit (tube body) capable of conducting (guiding the flow of) the lubricant, and is attached to the receiving portion 42 (support plate 4) at one end thereof in a manner communicating with the discharge hole 42a in the receiving portion 42.

[0036] Moreover, each outlet pipe 46 extends linearly toward the storage portion 44, and has a length dimension such that the other end reaches the storage portion 44. However, in the illustrated example, each outlet pipe 46 is formed such that the other end is bent at a substantially right angle, and the bent part is placed on the bottom surface of the storage portion 44. Therefore, the other end of each outlet pipe 46 is supported (supported) by the bottom surface of the storage portion 44.

[0037] According to the water jet loom L configured as above, the lubricant recovery mechanism 40 is provided for the beating device 10 in which the rocking shaft 14 is supported by the intermediate support part 30, so that the discharged lubricant discharged as new lubricant is supplied to the intermediate support part 30 (housing part 34) does not fall to the bottom but is received by the receiving part 42. The discharged lubricant received by the receiving part 42 flows down from the discharge hole 42a in the receiving part 42 into the outlet pipe 46, and is guided by the outlet pipe 46 into the storage part 44. As a result, the discharged lubricant flows into the storage part 44 and is stored (reserved) in the storage part 44.

[0038] Therefore, in a water jet loom L in which such a lubricant recovery mechanism 40 is provided in the reed beating device 10, the lubricant recovery mechanism 40 prevents the discharged lubricant from falling into the water receiving pan, thereby making it possible to prevent as much as possible the water discharged in the water jet loom L from containing a large amount of oil (lubricant).

[0039] Moreover, the lubricant recovery mechanism 40 is configured to receive the discharged lubricant in the receiving portion 42, and one outlet pipe 46 is provided for each intermediate support portion 30 (housing portion 34) to guide the discharged lubricant to the storage portion 44, thus simplifying the overall configuration. Therefore, the manufacturing costs of the water injection loom L having the lubricant recovery mechanism 40 configured in this way can be reduced.

[0040] As described above, since the storage section 44 is removably attached to the frame 1 (front bottom stay 3b), the discharged lubricant accumulated in the storage section 44 is recovered by removing the storage section 44 from the frame 1 when a certain amount of discharged lubricant has accumulated in the storage section 44 (for example, when changing machines, etc.).

[0041] The present invention is not limited to the embodiments described above (the above embodiments), but can be practiced in the following modified embodiments.

[0042] (1) Regarding the receiving portion, in the above embodiment, the portion including the recess formed in the support plate 4 functions as the receiving portion 42. However, in the present invention, the receiving portion is not limited to being configured in this manner as long as it can receive the discharged lubricant. For example, a portion that can receive the discharged lubricant discharged from the housing portion may be provided integrally with the intermediate support portion (or attached to the intermediate support portion), and the portion may function as the receiving portion.

[0043] 4 and 5 show an example in which a portion functioning as a receiving portion is integrally provided in the intermediate support portion. More specifically, in the intermediate support portion 50, the housing portion 52 in which the bearing 58 for rotatably supporting the rocking shaft 14 is mounted has a through hole 52a through which the rocking shaft 14 is inserted. In the through hole 52a, large diameter portions 60 formed to have an enlarged inner diameter are provided on both ends in the direction of the center line of the through hole 52a (= weaving width direction). The housing portion 52 is generally cylindrical, but is formed to have a bulging portion 52b bulging in the radial direction on a part of its circumference (FIG. 5).

[0044] A rubber ring 54 is fitted to each large diameter portion 60 at the inner end position in the weaving width direction. The rubber ring 54 is made of an elastically deformable material (synthetic rubber, etc.), and its inner diameter is slightly smaller than the outer diameter of the rocking shaft 14. Therefore, when the rocking shaft 14 is inserted into the through hole 52a, each rubber ring 54 is in contact with the outer circumferential surface of the rocking shaft 14 over the entire circumference.

[0045] In the through hole 52a, a bearing 58 is fitted (housed) in a space (housing space) 62 defined between the two rubber rings 54. That is, the housing space 62 is a portion that houses the bearing 58 in the housing part 52. The bearing 58 is a so-called sliding bearing that rotatably supports a rotating shaft on the inner peripheral surface of a cylinder. The housing part 52 is provided with a supply hole 64 for supplying a lubricant into the housing space 62, communicating with the outer peripheral surface of the housing part 52. A grease nipple or the like (not shown) is attached to the supply hole 64.

[0046] Further, an oil seal 56 made of an elastically deformable material (such as synthetic rubber) is provided at the outer end position in the weaving width direction of each large diameter portion 60 in the through hole 52a. When the rocking shaft 14 is inserted into the through hole 52a, each oil seal 56 is in close contact with the outer circumferential surface of the rocking shaft 14 over the entire circumference. As a result, the through hole 52a is closed by the oil seal 56 at the portions where the oil seals 56 are provided on both ends in the weaving width direction.

[0047] The housing portion 52 has a discharge flow passage 68 formed in the bulging portion 52b so as to penetrate in the direction of the center line of the through hole 52a (= the weaving width direction) (FIG. 4). The discharge flow passage 68 has a substantially fan-shaped cross section along the circumferential direction (FIG. 5). Both ends of the discharge flow passage 68 are closed by fitting stoppers.

[0048] In addition, the housing portion 52 is formed with a communication hole 66 that opens into a space (discharge space) 57 defined by the rubber rings 54 and the oil seals 56 on both sides thereof and that is drilled so as to communicate the discharge space 57 with a discharge flow passage 68. The housing portion 52 is also formed with a discharge hole 72 that opens into a center portion in the weaving width direction of the bulging portion 52b and extends in the radial direction of the housing portion 52 to communicate the discharge flow passage 68 with the outside. The housing portion 52 is further fitted with a discharge pipe 74 that is inserted into the discharge hole 72 at one end, extends in the radial direction, and is connected to the lead-out pipe 46 at the other end.

[0049] In the intermediate support portion 50, the housing portion 52 is attached to the support plate 4 at the bulging portion 52b (with the bulging portion 52b facing downward) via the plate-shaped base portion 70. As described above, the discharge pipe 74 is attached to the housing portion 52 in a manner extending in the radial direction, and the discharge pipe 74 is connected to the outlet pipe 46 for guiding the discharged lubricant to the storage portion. In order to allow the arrangement of the discharge pipe 74 and the outlet pipe 46, a through hole 70a is formed in the base portion 70, and a through hole 4a is formed in the support plate 4. As a result, when the intermediate support portion 50 (housing portion 52) is attached to the support plate 4, the outlet pipe 46, which is provided to communicate with the discharge flow passage 68 via the discharge pipe 74, passes through the support plate 4 and heads toward the storage portion below.

[0050] In the intermediate support part 50 configured as above, when lubricant is supplied into the accommodation space 62 through the supply hole 64, the internal pressure in the accommodation space 62 increases, and each rubber ring 54 is elastically deformed in a manner of being pushed outward in the weaving width direction, and old lubricant (discharged lubricant) flows outward (discharge space 57) from the rubber ring 54. Then, the discharged lubricant flows through each communication hole 66 formed to open into the discharge space 57 and a discharge flow path 68 connected to both communication holes 66, 66, and flows into the lead-out pipe 46 via the discharge pipe 74, and is discharged into the storage part.

[0051] In this configuration, the discharged lubricant that flows down through the communication hole 66 is received by the bottom surface of the hole that forms the discharge flow passage 68. Therefore, the bottom surface of the hole functions as a receiving portion. And, since the hole including the bottom surface is drilled in the housing portion 52 as the discharge flow passage 68, in this example, the receiving portion is provided integrally with the housing portion 52 of the intermediate support portion 50.

[0052] In the above-described example, a part of the housing part itself in the intermediate support part serves as the receiving part, but it is also possible to attach a separate member to the intermediate support part (housing part) and configure the separate member to serve as the receiving part. For example, the housing part is provided with a bulge part as in the above-described example, and a groove is formed in the bulge part, opening on the outer circumferential surface and having both ends closed. Also, the housing part is formed with a communication hole that communicates the groove with the discharge space in the above-described example. Then, a plate material that closes the opening of the groove is attached to the outer circumferential surface of the bulge part in the housing part. As a result, the space formed by the groove and the plate material serves as the discharge flow path in the above-described example. In this configuration, the surface of the plate material attached to the housing part on the groove side serves as the receiving part.

[0053] In the above-described examples, the lubricant recovery mechanism has a receiving portion. However, the lubricant recovery mechanism of the present invention is not limited to having a receiving portion. For example, in the lubricant recovery mechanism, the housing portion has discharge spaces formed on both sides as in the examples of Figs. 4 and 5, and communication holes are formed to connect the discharge spaces to the outside. Then, an outlet pipe is connected to each communication hole via a joint such as a grease nipple. In the lubricant recovery mechanism configured in this way, the discharged lubricant that flows down from the discharge space to each communication hole flows directly into the outlet pipe, so the lubricant recovery mechanism does not have a receiving portion.

[0054] (2) Regarding the storage portion, in the above embodiment, the storage portion 44 is provided so as to be located directly below the corresponding housing portion 34 (intermediate support portion 50). However, in the present invention, the storage portion is not limited to being provided in such a position, and may be provided, for example, below the housing portion and in the vicinity of the side frame.

[0055] In addition, the position where the storage section is provided is not limited to the lower part of the housing section as described above. For example, in the case where the housing section is configured such that both sides of the through hole in the housing section through which the rocking shaft is inserted are blocked by oil seals and the discharged lubricant is discharged from the discharge space between the space in which the bearing is accommodated (the space in which the lubricant is supplied) and the oil seal as shown in the examples of Figures 4 and 5, when the lubricant is supplied in a state in which the discharge space and the flow path of the discharged lubricant including the inside of the outlet pipe are all filled with the discharged lubricant, the discharged lubricant is pushed out and discharged into the storage section, so the position where the storage section is provided can be at the same height as the housing section or above the housing section.

[0056] In the embodiment described above, two storage portions 44 are provided corresponding to each housing portion 34 (middle support portion 30). However, in the present invention, the storage portion is not limited to being provided for each housing portion in this manner, and a (single) storage portion common to all housing portions may be provided.

[0057] Furthermore, in the above embodiment, a tray-shaped member is used for the storage section 44, but the storage section in the present invention is not limited to such a member, and may be, for example, a box-shaped container with a lid. In this case, a through hole is formed in the lid, and an outlet pipe is inserted into the through hole to lead the discharged lubricant into the storage section.

[0058] The present invention is not limited to the examples described above, and can be modified as appropriate without departing from the spirit of the present invention. [Explanation of symbols]

[0059] 1 Frame 2 Side frame 3a Beam (front top stay) 3b Beam (front bottom stay) 4 Support plate 10 Beating device 11 reed 14 rocking shaft 30, 50 Intermediate support 32, 70 Base 34, 52 housing part 34a, 58 bearing 36 Supply port material 40 Lubricant recovery mechanism 42 Receiving part 42a Discharge hole 44 Storage section 46 Outlet pipe 52a Through hole 52b Swelling part 54 Rubber ring 56 Oil seal 57 Discharge space 64 Supply hole 66 Communication hole 68 Discharge flow path 72 Discharge hole 74 Discharge pipe L Water jet loom NZ Weft insertion nozzle Y Weft T Warp W Woven fabric CF Orimae

Claims

1. A water jet loom comprising a locking shaft installed on a pair of side frames in a loom frame and an intermediate support portion for supporting the locking shaft between the side frames, the intermediate support portion being supported by a beam member installed on the pair of side frames, and a reed beating device for beating a weft inserted weft with a reed, and a water receiving pan provided below the locking shaft for receiving the injection water jetted from a weft insertion nozzle, wherein the intermediate support portion is a housing portion having a bearing installed therein, the housing portion being configured to be able to supply a lubricant for lubricating the bearing therein and configured such that old lubricant is discharged to the outside when the lubricant is supplied. The reed beating device is provided with a lubricant recovery mechanism for recovering the discharged lubricant which is the old lubricant discharged from the housing portion. The lubricant recovery mechanism includes a storage portion provided separately from the water receiving pan and configured to be able to store the lubricant, and a lead-out pipe for leading the discharged lubricant discharged from the housing portion to the storage portion. A water jet loom characterized by the above.

2. The lubricant recovery mechanism has a receiving portion provided below the housing portion for receiving the discharged lubricant and to which the lead-out pipe is communicated, and the storage portion is configured to be provided below the receiving portion. The water jet loom according to claim 1, characterized by the above.

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