Linkage structure for rapier loom

Abstract

The linkage structure for the rapier loom comprises a machine body assembly and a first traction mechanism, and the machine body assembly comprises a machine frame, a belt driving wheel and a driving gear; wherein the belt driving wheel and the driving gear are rotationally connected to one side of the rack, one end of the belt driving wheel is fixedly connected with the driving gear, and the first traction mechanism is arranged at the bottom of the outer side of the rack; the belt driving wheel drives the first traction mechanism to work through the driving gear, the working first traction mechanism drives the rapier mechanism to reciprocate through the second traction mechanism and provides power for the driving mechanism at the same time, and then the driving mechanism drives the rapier mechanism to work through the power provided by the first traction mechanism. Therefore, only one driving device is needed to drive the rapier mechanism to do reciprocating motion and work at the same time, and the use and maintenance cost of the device is saved.

Description

Technical Field

[0001] The utility model relates to a linkage structure of a loom, specifically a linkage structure for a rapier loom, and belongs to the technical field of looms. Background Art

[0002] A rapier loom is a modern weaving machine. It uses a flexible rapier (or rapier head) to introduce the weft yarn, can weave at a relatively high speed, and has high precision when introducing the weft yarn, and can produce high-quality fabrics, which are widely used in various weaving fields, such as clothing fabrics, decorative fabrics and industrial fabrics.

[0003] When a traditional rapier loom is working, its rapier frame and rapier wheel usually need to be driven by different and relatively independent drivers to ensure that when the loom is working, the rapier frame and rapier belt can perform different actions synchronously. However, setting multiple different drivers will increase the overall use cost of the loom equipment. For this reason, a linkage structure for a rapier loom is proposed. Summary of the Utility Model

[0004] In view of this, the utility model provides a linkage structure for a rapier loom to solve or alleviate the technical problems existing in the prior art and at least provide a beneficial option.

[0005] The technical solution of the embodiment of the utility model is realized as follows: A linkage structure for a rapier loom includes a body assembly and a first traction mechanism. The body assembly includes a frame, a belt drive wheel and a driving gear.

[0006] Wherein, the belt drive wheel and the driving gear are both rotatably connected to one side of the frame. One end of the belt drive wheel is fixedly connected to the driving gear. The first traction mechanism is arranged at the outer bottom of the frame. Two second traction mechanisms are symmetrically arranged on the inner side wall of the frame. A rapier mechanism is installed on the other side of the frame. Both of the two second traction mechanisms are installed between the first traction mechanism and the rapier mechanism. Two driving mechanisms are installed between the first traction mechanism and the rapier mechanism.

[0007] Wherein, the first traction mechanism includes a driven gear, a driving shaft, two traction wheels and a linkage shaft.

[0008] Wherein, the outer side wall of the driven gear is meshed and connected with the outer side wall of the driving gear. One end of the driving shaft is fixedly connected to one end of the driven gear. One of the traction wheels is eccentrically rotatably connected to one side of the outer side wall of the driving shaft. The linkage shaft is fixedly connected to the other end of the driving shaft. The other traction wheel is eccentrically rotatably connected to one side of the outer side wall of the linkage shaft.

[0009] Wherein, the second traction mechanism uses the power of the first traction mechanism to synchronously drive the rapier mechanism to reciprocate.

[0010] Wherein, the drive mechanism uses the power of the first traction mechanism to synchronously drive the rapier mechanism to perform the weft insertion action.

[0011] Further preferably, the first traction mechanism further includes two first traction arms, two traction connecting frames, two slide bars, two arc-shaped chutes and two second traction arms.

[0012] Wherein, one ends of the two first traction arms are respectively fixedly connected to the outer side walls of the two traction wheels, the two traction connecting frames are symmetrically hinged to the outer bottom of the frame, the two slide bars are respectively hinged to one ends of the two first traction arms, the two arc-shaped chutes are respectively formed on one sides of the two traction connecting frames, the outer side wall of the slide bar is slidably connected to the inner side wall of the arc-shaped chute, and one ends of the two second traction arms are respectively hinged to the top of one sides of the two traction connecting frames.

[0013] Further preferably, the second traction mechanism includes two third traction arms, two connecting blocks, a runner and a connecting shaft.

[0014] Wherein, the runner is fixedly connected to one end of the driving gear, the outer side wall of the runner is rotatably connected to the inner side wall of the frame, the connecting shaft is fixedly connected to one side of the runner, one end of one third traction arm is rotatably connected to the outer side wall of the connecting shaft, and one end of the other third traction arm is rotatably connected to the outer side wall of the linkage shaft.

[0015] Further preferably, the rapier mechanism includes a rapier support, a lower support, a rapier tape seat, two rapier wheels and two weft insertion rapiers.

[0016] Wherein, the lower support is fixedly connected to the bottom of the rapier support, the bottom of the lower support is slidably connected to the inner side wall of the frame, the rapier tape seat is fixedly connected to the upper surface of the rapier support, the two rapier wheels are respectively rotatably connected to both ends of the rapier support, one ends of the two weft insertion rapiers are respectively fixedly connected to the outer side walls of the two rapier wheels, and the bottoms of the two weft insertion rapiers are both slidably connected to the upper surface of the rapier tape seat.

[0017] Further preferably, the two connecting blocks are symmetrically and fixedly connected to one side of the rapier support, and one ends of the two third traction arms are respectively hinged to the inner side walls of the two connecting blocks.

[0018] Further preferably, both of the two drive mechanisms include a guide frame, a rack, a limit gear, a drive gear, a first bevel gear, a second bevel gear and a transfer cover.

[0019] Among them, the guiding frame is fixedly connected to the bottom of one side of the rapier support. The limiting gear is rotatably connected to one side of the inner side wall of the guiding frame, the driving gear is rotatably connected to the other side of the inner side wall of the guiding frame, the upper surface of the rack is meshed and connected to the outer side walls of the limiting gear and the driving gear respectively, and one end of the rack is hinged to one end of the second traction arm.

[0020] Further preferably, the adapter cover is fixedly connected between the guiding frame and the rapier support. The first bevel gear is rotatably connected to one side of the inner side wall of the adapter cover, one end of the first bevel gear is fixedly connected to one end of the driving gear, the second bevel gear is rotatably connected to the other side of the inner side wall of the adapter cover, the outer side wall of the first bevel gear is meshed and connected to the outer side wall of the second bevel gear, and one end of the second bevel gear penetrates through the rapier support and is fixedly connected to one end of the rapier wheel.

[0021] Further preferably, two pressing belt pieces are symmetrically and fixedly connected to the upper surface of the rapier support, and two rapier belt guide rails are symmetrically and fixedly connected to the upper surface of the rapier belt seat.

[0022] Since the embodiment of the present utility model adopts the above technical solutions, it has the following advantages: The present utility model drives the first traction mechanism to work by the belt drive wheel using the driving gear. The working first traction mechanism drives the rapier mechanism to reciprocate by using the second traction mechanism and simultaneously provides power for the driving mechanism. Then, the driving mechanism drives the rapier mechanism to work by using the power provided by the first traction mechanism, so that only one driving device can drive the rapier mechanism to reciprocate and work simultaneously, saving the use and maintenance costs of the equipment.

[0023] The above summary is only for the purpose of the specification and is not limited in any way. In addition to the above-described illustrative aspects, embodiments and features, other aspects, embodiments and features of the present utility model will be readily apparent by reference to the drawings and the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0025] Figure 1 is the structural diagram of the present utility model;

[0026] Figure 2 is the present utility model Figure 1Schematic enlarged view of the structure of Area A;

[0027] Figure 3 Schematic cross-sectional view of the driving gear of the present utility model;

[0028] Figure 4 Schematic cross-sectional view of the rapier support of the present utility model;

[0029] Figure 5 For the present utility model Figure 4 Schematic enlarged view of the structure of Area B;

[0030] Figure 6 Schematic top view of the present utility model;

[0031] Figure 7 Schematic cross-sectional view of the first traction arm of the present utility model.

[0032] Reference numerals: 1, body assembly; 2, first traction mechanism; 3, second traction mechanism; 4, rapier mechanism; 5, driving mechanism; 101, frame; 102, belt driving wheel; 103, driving gear; 201, driven gear; 202, driving shaft; 203, traction wheel; 204, linkage shaft; 205, first traction arm; 206, traction connecting frame; 207, sliding rod; 208, arc-shaped sliding groove; 209, second traction arm; 301, third traction arm; 302, connecting block; 303, runner; 304, connecting shaft; 401, rapier support; 402, lower support; 403, rapier seat; 404, rapier wheel; 405, weft insertion rapier belt; 501, guide frame; 502, rack; 503, limit gear; 504, driving gear; 505, first bevel gear; 506, second bevel gear; 507, adapter cover; 61, belt pressing piece; 62, rapier belt guide rail. Detailed implementation manners

[0033] In the following, only some exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present utility model. Therefore, the drawings and the description are considered to be exemplary in nature rather than restrictive.

[0034] It should be noted that terms such as "first", "second", "symmetric", "array", etc. are only used for the purpose of distinguishing descriptions and position descriptions, and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first", "symmetric", etc. can explicitly or implicitly include one or more of such features; similarly, when certain features are not limited in quantity by words such as "two", "three", etc., it should be noted that such features also belong to explicitly or implicitly including one or more feature quantities.

[0035] The embodiments of the present utility model will be described in detail below with reference to the accompanying drawings.

[0036] As Figures 1-7 shown, the embodiment of the present utility model provides a linkage structure for a rapier loom, including a body assembly 1 and a first traction mechanism 2. The body assembly 1 includes a frame 101, a belt drive wheel 102, and a driving gear 103.

[0037] Among them, both the belt drive wheel 102 and the driving gear 103 are rotatably connected to one side of the frame 101. One end of the belt drive wheel 102 is fixedly connected to the driving gear 103. The first traction mechanism 2 is arranged at the outer bottom of the frame 101. Two second traction mechanisms 3 are symmetrically arranged on the inner side wall of the frame 101. A rapier mechanism 4 is installed on the other side of the frame 101. Both second traction mechanisms 3 are installed between the first traction mechanism 2 and the rapier mechanism 4. Two driving mechanisms 5 are installed between the first traction mechanism 2 and the rapier mechanism 4.

[0038] Among them, the first traction mechanism 2 includes a driven gear 201, a driving shaft 202, two traction wheels 203, and a linkage shaft 204.

[0039] Among them, the outer side wall of the driven gear 201 is meshed and connected with the outer side wall of the driving gear 103. One end of the driving shaft 202 is fixedly connected to one end of the driven gear 201. One traction wheel 203 is eccentrically rotatably connected to one side of the outer side wall of the driving shaft 202. The linkage shaft 204 is fixedly connected to the other end of the driving shaft 202. The other traction wheel 203 is eccentrically rotatably connected to one side of the outer side wall of the linkage shaft 204.

[0040] Among them, the second traction mechanism 3 uses the power of the first traction mechanism 2 to synchronously drive the rapier mechanism 4 to reciprocate.

[0041] Among them, the driving mechanism 5 uses the power of the first traction mechanism 2 to synchronously drive the rapier mechanism 4 to perform the weft insertion action.

[0042] In one embodiment, the first traction mechanism 2 further includes two first traction arms 205, two traction connecting frames 206, two sliding rods 207, two arc-shaped chutes 208, and two second traction arms 209.

[0043] Wherein, one end of each of the two first traction arms 205 is fixedly connected to the outer sidewalls of the two traction wheels 203 respectively; the two traction connecting frames 206 are symmetrically hinged to the outer bottom of the frame 101; the two slide bars 207 are respectively hinged to one end of the two first traction arms 205; the two arc-shaped chutes 208 are respectively formed on one side of the two traction connecting frames 206; the outer sidewalls of the slide bars 207 are slidably connected to the inner sidewalls of the arc-shaped chutes 208; one end of each of the two second traction arms 209 is respectively hinged to the top of one side of the two traction connecting frames 206. The driven gear 201 drives the driving shaft 202 to rotate. While the rotating driving shaft 202 drives one traction wheel 203 to move, it also drives the linkage shaft 204 to rotate, and the rotating linkage shaft 204 drives the other traction wheel 203 to move.

[0044] The belt driving wheel 102 drives the driven gear 201 to rotate by means of the driving gear 103, and the rotation...

[0045] In one embodiment, the second traction mechanism 3 includes two third traction arms 301, two connecting blocks 302, a runner 303 and a connecting shaft 304.

[0046] Wherein, the runner 303 is fixedly connected to one end of the driving gear 103, the outer sidewall of the runner 303 is rotatably connected to the inner sidewall of the frame 101, the connecting shaft 304 is fixedly connected to one side of the runner 303, one end of one third traction arm 301 is rotatably connected to the outer sidewall of the connecting shaft 304, and one end of the other third traction arm 301 is rotatably connected to the outer sidewall of the linkage shaft 204.

[0047] The linkage shaft 204 drives one third traction arm 301 to move, and the rotating runner 303 drives the other third traction arm 301 to move by means of the connecting shaft 304.

[0048] In one embodiment, the rapier mechanism 4 includes a rapier support 401, a lower support 402, a rapier tape seat 403, two rapier wheels 404 and two weft insertion rapier tapes 405.

[0049] Wherein, the lower support 402 is fixedly connected to the bottom of the rapier support 401, the bottom of the lower support 402 is slidably connected to the inner sidewall of the frame 101, the rapier tape seat 403 is fixedly connected to the upper surface of the rapier support 401, the two rapier wheels 404 are respectively rotatably connected to both ends of the rapier support 401, one end of each of the two weft insertion rapier tapes 405 is fixedly connected to the outer sidewalls of the two rapier wheels 404 respectively, the bottoms of the two weft insertion rapier tapes 405 are both slidably connected to the upper surface of the rapier tape seat 403, two pressing tape pieces 61 are symmetrically and fixedly connected to the upper surface of the rapier support 401, two rapier tape guide rails 62 are symmetrically and fixedly connected to the upper surface of the rapier tape seat 403, the two connecting blocks 302 are symmetrically and fixedly connected to one side of the rapier support 401, and one end of each of the two third traction arms 301 is respectively hinged to the inner sidewalls of the two connecting blocks 302.

[0050] The movement of the weft insertion sword belt 405 is driven by the rotating sword wheel 404. The moving weft insertion sword belt 405 slides on the surface of the sword belt seat 403 for weft insertion. The weft insertion sword belt 405 is fully attached to the outer wall of the sword wheel 404 through the arranged pressing belt piece 61. The arranged sword belt guide rail 62 is used to assist the sword belt seat 403 in guiding and limiting the sliding weft insertion sword belt 405.

[0051] In one embodiment, both driving mechanisms 5 include a guide frame 501, a rack 502, a limiting gear 503, a driving gear 504, a first bevel gear 505, a second bevel gear 506, and a transfer cover 507;

[0052] Among them, the guide frame 501 is fixedly connected to the bottom of one side of the sword rod support 401. The limiting gear 503 is rotatably connected to one side of the inner wall of the guide frame 501. The driving gear 504 is rotatably connected to the other side of the inner wall of the guide frame 501. The upper surface of the rack 502 is meshed and connected to the outer walls of the limiting gear 503 and the driving gear 504 respectively. One end of the rack 502 is hinged to one end of the second traction arm 209. The transfer cover 507 is fixedly connected between the guide frame 501 and the sword rod support 401. The first bevel gear 505 is rotatably connected to one side of the inner wall of the transfer cover 507. One end of the first bevel gear 505 is fixedly connected to one end of the driving gear 504. The second bevel gear 506 is rotatably connected to the other side of the inner wall of the transfer cover 507. The outer wall of the first bevel gear 505 is meshed and connected to the outer wall of the second bevel gear 506. One end of the second bevel gear 506 passes through the sword rod support 401 and is fixedly connected to one end of the sword wheel 404.

[0053] The second traction arm 209 drives the rack 502 to slide back and forth in the guide frame 501, so as to drive the driving gear 504 to rotate through the sliding rack 502. The rotating driving gear 504 drives the second bevel gear 506 to rotate by using the first bevel gear 505. The rotating second bevel gear 506 drives the sword wheel 404 to rotate.

[0054] When the utility model works: The belt driving wheel 102 is connected to the driving device of the rapier loom by using a belt, so that the driving device drives the belt driving wheel 102 to rotate by using the belt.

[0055] When the rapier loom is working, the rotating belt drive wheel 102 drives the driven gear 201 and the runner 303 to rotate by means of the driving gear 103. The rotating driven gear 201 drives the driving shaft 202 to rotate. While the rotating driving shaft 202 drives a traction wheel 203 to move, it also drives the linkage shaft 204 to rotate. The rotating linkage shaft 204 drives a third traction arm 301 to move and at the same time drives another traction wheel 203 to move; the rotating runner 303 drives another third traction arm 301 to move by means of the connecting shaft 304;

[0056] The two moving third traction arms 301 simultaneously drive the entire rapier support 401 to move by means of the connecting block 302, so that the entire rapier support 401 can reciprocate following the third traction arm 301.

[0057] The two moving traction wheels 203 respectively drive the slide bar 207 to move by means of the first traction arm 205. The moving slide bar 207 drives the traction connecting frame 206 to move. The moving traction connecting frame 206 drives the second traction arm 209 to move. The moving second traction arm 209 drives the rack 502 to slide back and forth in the guide frame 501, so as to drive the driving gear 504 to rotate by means of the sliding rack 502. The rotating driving gear 504 drives the second bevel gear 506 to rotate by means of the first bevel gear 505. The rotating second bevel gear 506 drives the rapier wheel 404 to rotate, so that the rapier wheel 404 can rotate forward and backward following the rack 502 sliding back and forth in the guide frame 501; when the rapier wheel 404 rotates forward, the weft insertion rapier tape 405 is driven to move by the rotating rapier wheel 404, and the moving weft insertion rapier tape 405 slides on the surface of the rapier tape seat 403 for weft insertion; when the rapier wheel 404 rotates backward, the weft insertion rapier tape 405 is driven to wind up by the rotating rapier wheel 404, so as to reset the weft insertion rapier tape 405.

[0058] The weft insertion rapier tape 405 is fully attached to the outer wall of the rapier wheel 404 by means of the provided pressing tape piece 61. The provided rapier tape guide rail 62 is used to assist the rapier tape seat 403 to guide and limit the sliding weft insertion rapier tape 405.

[0059] The above is only the specific implementation manner of the present utility model, but the protection scope of the present utility model is not limited thereto. Any person skilled in the art in the technical field disclosed by the present utility model can easily think of various changes or substitutions within the technical scope disclosed by the present utility model, and these should all be covered within the protection scope of the present utility model. Therefore, the protection scope of the present utility model should be subject to the protection scope of the said claims.

Claims

1. A linkage structure for a rapier loom, comprising a body assembly (1) and a first traction mechanism (2), characterized in that, The body component (1) includes a frame (101), a belt drive wheel (102), and a driving gear (103). Among them, the belt drive wheel (102) and the driving gear (103) are both rotatably connected to one side of the frame (101). One end of the belt drive wheel (102) is fixedly connected to the driving gear (103). The first traction mechanism (2) is arranged at the outer bottom of the frame (101). Two second traction mechanisms (3) are symmetrically arranged on the inner side wall of the frame (101). A rapier mechanism (4) is installed on the other side of the frame (101). Both of the two second traction mechanisms (3) are installed between the first traction mechanism (2) and the rapier mechanism (4). Two driving mechanisms (5) are installed between the first traction mechanism (2) and the rapier mechanism (4). Among them, the first traction mechanism (2) includes a driven gear (201), a driving shaft (202), two traction wheels (203), and a linkage shaft (204). Among them, the outer side wall of the driven gear (201) is meshed and connected with the outer side wall of the driving gear (103). One end of the driving shaft (202) is fixedly connected to one end of the driven gear (201). One of the traction wheels (203) is eccentrically rotatably connected to one side of the outer side wall of the driving shaft (202). The linkage shaft (204) is fixedly connected to the other end of the driving shaft (202). The other traction wheel (203) is eccentrically rotatably connected to one side of the outer side wall of the linkage shaft (204). Among them, the second traction mechanism (3) synchronously drives the rapier mechanism (4) to reciprocate by using the power of the first traction mechanism (2). Among them, the driving mechanism (5) synchronously drives the rapier mechanism (4) to perform the weft insertion action by using the power of the first traction mechanism (2).

2. The linkage structure for a rapier loom according to claim 1, wherein: The first traction mechanism (2) further includes two first traction arms (205), two traction connecting frames (206), two sliding rods (207), two arc-shaped chutes (208), and two second traction arms (209). Among them, one end of each of the two first traction arms (205) is respectively fixedly connected to the outer side wall of each of the two traction wheels (203). The two traction connecting frames (206) are symmetrically hinged to the outer bottom of the frame (101). The two sliding rods (207) are respectively hinged to one end of the two first traction arms (205). The two arc-shaped chutes (208) are respectively opened on one side of the two traction connecting frames (206). The outer side wall of the sliding rod (207) is slidably connected to the inner side wall of the arc-shaped chute (208). One end of each of the two second traction arms (209) is respectively hinged to the top of one side of the two traction connecting frames (206).

3. The linkage structure for a rapier loom according to claim 2, characterized in that: The second traction mechanism (3) includes two third traction arms (301), two connecting blocks (302), a runner (303), and a connecting shaft (304). Among them, the runner (303) is fixedly connected to one end of the driving gear (103), the outer sidewall of the runner (303) is rotatably connected to the inner sidewall of the frame (101), the connecting shaft (304) is fixedly connected to one side of the runner (303), one end of a third traction arm (301) is rotatably connected to the outer sidewall of the connecting shaft (304), and the other end of the third traction arm (301) is rotatably connected to the outer sidewall of the linkage shaft (204).

4. The linkage structure for a rapier loom according to claim 3, characterized in that: The rapier mechanism (4) includes a rapier support (401), a lower support (402), a rapier belt seat (403), two rapier wheels (404) and two weft insertion rapier belts (405); Among them, the lower support (402) is fixedly connected to the bottom of the rapier support (401), the bottom of the lower support (402) is slidably connected to the inner sidewall of the frame (101), the rapier belt seat (403) is fixedly connected to the upper surface of the rapier support (401), two of the rapier wheels (404) are respectively rotatably connected to both ends of the rapier support (401), one ends of two of the weft insertion rapier belts (405) are respectively fixedly connected to the outer sidewalls of two of the rapier wheels (404), and the bottoms of two of the weft insertion rapier belts (405) are both slidably connected to the upper surface of the rapier belt seat (403).

5. The linkage structure for a rapier loom according to claim 4, characterized in that: Two of the connecting blocks (302) are symmetrically and fixedly connected to one side of the rapier support (401), and one ends of two of the third traction arms (301) are respectively hinged to the inner sidewalls of two of the connecting blocks (302).

6. The linkage structure for a rapier loom according to claim 4, characterized in that: Both of the driving mechanisms (5) include a guide frame (501), a rack (502), a limit gear (503), a driving gear (504), a first bevel gear (505), a second bevel gear (506) and a transfer cover (507); Among them, the guide frame (501) is fixedly connected to the bottom of one side of the rapier support (401), the limit gear (503) is rotatably connected to one side of the inner sidewall of the guide frame (501), the driving gear (504) is rotatably connected to the other side of the inner sidewall of the guide frame (501), the upper surface of the rack (502) is respectively meshed and connected to the outer sidewalls of the limit gear (503) and the driving gear (504), and one end of the rack (502) is hinged to one end of the second traction arm (209).

7. The linkage structure for a rapier loom according to claim 6, wherein: The transfer cover (507) is fixedly connected between the guide frame (501) and the rapier support (401), the first bevel gear (505) is rotatably connected to one side of the inner sidewall of the transfer cover (507), one end of the first bevel gear (505) is fixedly connected to one end of the driving gear (504), the second bevel gear (506) is rotatably connected to the other side of the inner sidewall of the transfer cover (507), the outer sidewall of the first bevel gear (505) is meshed and connected to the outer sidewall of the second bevel gear (506), and one end of the second bevel gear (506) penetrates through the rapier support (401) and is fixedly connected to one end of the rapier wheel (404).

8. The linkage structure for a rapier loom according to claim 4, characterized in that: Two presser tapes (61) are symmetrically and fixedly connected to the upper surface of the rapier support (401), and two rapier guides (62) are symmetrically and fixedly connected to the upper surface of the rapier seat (403).

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