JP3173694U - Hand weaving mechanism of warp opening - Google Patents

Abstract

The present invention provides a warp opening mechanism for a hand-weaving machine capable of realizing an arbitrary opening state and weaving various woven fabrics having various patterns.
A warp opening mechanism for a hand weaving machine includes a hook member 22 provided for each warp and an operating member 21 that is manually operated by a user, and engages with the hook member to engage the hook member. A selection mechanism including an actuating member for causing the member to perform an opening operation and a solenoid 25 as a driving means provided for each saddle member. And a selection mechanism for switching between different states.
[Selection] Figure 1

Description

  The present invention relates to a warp opening mechanism used in a hand-weaving machine in which insertion of a weft thread into at least a warp opening is performed manually by a user.

  In a hand loom used as a toy or a loom for trial weaving (also referred to as “hand loom”), various types of warp opening devices for causing the warp to perform opening movement are known. Generally, it is of the same type as an automatic loom, using two or more cocoon frames in which a large number of cocoons are suspended, passing warps through mails formed on each cocoon, The warp yarn is given an opening movement by moving the needle up and down. The opening movement referred to here is an operation of displacing the warp upward or downward in order to form the warp opening, which is the above-described operation of locking the warp to realize the displacement operation of the warp. It is a concept including an operation of displacing a heel member such as a heel upward or downward.

  By the way, in the case of the type of warp opening device using the above-described warp frame, there is a problem in that it is difficult to realize various and various woven patterns (woven structures) because the warp yarn is opened by a warp frame unit. That is, in the case of the above-described type of warp opening device, a simple woven structure such as a plain weave or a twill weave can be easily realized, but in the case of a complicated structure such as satin weave, the number of reed frames increases, There is a problem that becomes complicated. In addition, it is impossible to realize various woven patterns, for example, forming partially different woven patterns at a plurality of arbitrary positions in the woven fabric.

  Therefore, there is one described in Patent Document 1 as a hand loom equipped with a warp opening device capable of weaving woven fabrics having various woven patterns. In the hand weaving machine described in Patent Document 1, the warp opening device is provided with a heel for each warp, and the selected heel is brought to the raised position (upper opening position) by the selection means, and the heel not selected. Is set to the initial position to form a warp opening. And, according to the warp opening device of the hand loom described in this Patent Document 1, since it is possible to set whether to select / deselect, ie, to bring to the upper opening position or to maintain the initial position in units of wrinkles (warp), Various warp opening states can be realized, and various woven patterns can be formed on the woven fabric.

  However, in the case of the warp opening device of Patent Document 1, the selection means for setting selection / non-selection of the heel is composed of a pattern board on which a cam piece is formed, and the pattern board is fed in one direction, The engaging heel is lifted by the cam piece to form a warp opening. That is, a single member (cam piece) performs the setting related to the selection / non-selection of the warp with respect to the member (綜 絖) that gives an opening movement to the warp and the operation for bringing the warp to the upper opening position. However, this configuration has the following problems.

  First, a hand-weaving machine basically performs a weft insertion by manually inserting a shuttle or the like wound with a weft thread into a warp opening. Therefore, in order to facilitate the weft insertion operation, the warp opening needs a certain amount of opening. And in the case of the warp opening device of patent document 1, in order to enlarge opening amount, you have to enlarge the height dimension of a cam piece. However, in the case of using a mountain-shaped cam piece as described in Patent Document 1, if the height dimension of the cam piece is simply increased, the heel cannot be lifted smoothly. Therefore, in order to increase the height dimension of the cam piece, the dimension in the longitudinal direction (feed direction of the pattern board) of the cam piece must also be increased. On the other hand, in consideration of usability, the length dimension of the pattern board cannot be made too long, and accordingly, the installation space for the cam piece is limited. Therefore, when trying to obtain a large opening amount as described above in the warp opening device of Patent Document 1, the number of cam pieces installed in the longitudinal direction of the pattern board is inevitably small, and as a result, weaving is possible. Simple woven patterns are limited to simple ones.

  Moreover, in the warp opening device of Patent Document 1, since the heel is slid on the upper surface of the cam piece and lifts the heel, the heel and the cam piece are attached to one or both sliding surfaces with long-term use. Wear occurs, and even if the cam piece is engaged, the heel cannot be lifted smoothly. As a result, the mechanism for sending the pattern board and the hook are forced with the engagement between the cam piece and the hook, and the parts are damaged.

No. 01-036925

  In view of the above-mentioned problems of the prior art, an object of the present invention is to provide a warp opening mechanism for a hand-weaving machine capable of realizing an arbitrary opening state and weaving various woven fabrics. .

  In order to solve the above problems, the warp opening mechanism for a hand loom of the present invention includes a hook member provided for each warp and an operating member that is manually operated by a user. A selection mechanism including an actuating member that causes the eaves member to perform an opening operation, and a solenoid as a driving means provided for each eaves member, wherein the engagement member can be engaged with the actuating member in a state that allows engagement. And a selection mechanism for switching between the disabled states.

  According to the present invention, in forming the warp opening, the selection / non-selection of the warp (the heel member) to be brought into the upper opening position or maintained in the closed position is performed in units of one warp, and This is performed by switching the engagement state / non-engagement state of the heel member corresponding to each warp to the operation member. Further, switching between the engagement member and the disengagement state of the flange member is performed by a selection mechanism including a solenoid as a driving unit. On the other hand, the operation of actually bringing the selected warp to the upper opening position is performed by lifting the operating member manually operated by the user upward, and by lifting the operating member upward, When the hook member to be engaged is lifted, the warp corresponding to the hook member is lifted, and as a result, the warp is brought to the upper opening position.

  Thus, in the warp opening mechanism according to the present invention, the opening position of the warp for each weft insertion can be set in units of one warp and, unlike the warp opening device of Patent Document 1, the warp opening movement is given to the warp ( The configuration for switching the state of the heel member corresponding to the selection of the warp and the state corresponding to the non-selection, that is, the state in which the heel member and the actuating member are engaged and the non-engagement state, This is separated from the structure for lifting to the position corresponding to the upper opening position of the warp, and the setting of selection / non-selection of the warp is to electrically set the drive mode of the solenoid in the selection mechanism. Without being limited to the woven pattern that can be woven as in the prior art, it is possible to realize a desired opening state and to weave woven fabrics having various woven patterns.

The partial cross section side view which shows the outline of the hand loom to which the apparatus equivalent to one Embodiment of the warp opening mechanism of the hand loom by this invention was applied. FIG. 2 is a front view showing an embodiment of a warp opening mechanism of the hand loom according to the present invention, taken along the line AA of the hand loom in FIG. 1. The top view which shows one Embodiment of the warp opening mechanism of the hand-weaving machine by this invention. FIG. 2 is a plan view showing an embodiment of a warp opening mechanism of a hand loom according to the present invention, and is a cross-sectional view taken along line B-B of the hand loom in FIG. 1. Explanatory drawing which shows the one part detail of the selection mechanism in one Embodiment of the warp opening mechanism of the hand-weaving machine by this invention shown in FIG. The operation | movement figure for demonstrating operation | movement of the warp opening mechanism of the hand-weaving machine by this invention shown in FIGS. The operation | movement figure for demonstrating operation | movement of the warp opening mechanism of the hand-weaving machine by this invention shown in FIGS. The side view which shows other embodiment of the selection mechanism in the warp opening mechanism of the hand-weaving machine by this invention. The side view which shows other embodiment of the warp opening mechanism for looms by this invention. The side view which shows the state at the time of opening of the warp in the warp opening mechanism of the hand-weaving machine by this invention shown in FIG. The side view which shows other embodiment of the warp opening mechanism of the hand-weaving machine by this invention. The side view which shows the state at the time of opening of the warp in the warp opening mechanism of the hand-weaving machine by this invention shown in FIG.

  Below, based on FIGS. 1-7, one Example of the warp opening mechanism of the hand-weaving machine by this invention is described. 1 to 4 show an apparatus according to an embodiment of the present invention, and FIG. 1 schematically shows a hand loom to which the warp opening mechanism of the present invention is applied. 2 is a cross-sectional view taken along the line AA of the hand loom shown in FIG. 1 and is a front view showing a part of the warp opening mechanism. FIG. 3 is a view of the warp opening mechanism portion in the hand loom shown in FIG. It is a top view which shows a part. FIG. 4 is a cross-sectional view taken along the line BB in the hand loom shown in FIG. 1 and shows a part of the warp opening mechanism. In addition, in each cross-sectional view of FIGS.

  As shown in FIG. 1, a hand loom HL has a frame 1 as a base, a warp opening mechanism 2 according to the present invention, a feed roll 3 for feeding the warp T into a sheet, and a shuttle (not shown). For winding the weft Y that has been inserted into the opening of the warp T to the pre-weaving F, and for winding the woven fabric W formed by weaving the weft Y into the warp T A winding roll 5 is provided.

  The frame 1 has a pair of left and right side walls 11, 11 erected apart from each other in the width direction. Here, the “width direction” is a direction orthogonal to the traveling direction of the warp T and coincides with the axial direction of the feed roll 3 and the take-up roll 5 (hereinafter the same). The left and right side walls 11 and 11 are plate-like bodies extending in a direction orthogonal to the width direction (hereinafter referred to as “front-rear direction”), and are disposed so as to be separated from each other in the width direction and to face each other. The The frame 1 is configured by connecting the left and right side walls 11, 11 with guide rolls 12, 13 at the upper part on the sending side and the winding side, and connecting them with a beam (not shown) at the lower part. .

  The delivery roll 3 is supported by the side wall 11 at each of both end portions of the shaft portion 31, and is constructed to be rotatable between the left and right side walls 11, 11. A large number of warps T are wound around the feed roll 3 in a state aligned in the width direction, and the warp T pulled out in a sheet form from the feed roll 3 is a guide roll 12 positioned above the feed roll 3. After being wound around and turned, the yarn is guided to the woven fabric F via the warp opening mechanism 2.

  The woven fabric W formed by weaving the weft Y into the warp T is guided by the guide roll 13 and guided to the winding roll 5. The take-up roll 5 is supported by the side walls 11 at both ends of the shaft portion 51, and is laid so as to be rotatable between the left and right side walls 11, 11, similarly to the feed roll 3.

  The delivery roll 3 and the take-up roll 5 are rotated manually by the user. Therefore, as illustrated in FIG. 3, the shaft portion 31 penetrates the side wall 11, and the side wall 11. A handle 32 is attached to the end portion of the shaft portion 31 protruding from the shaft so as not to be relatively rotatable. Although FIG. 3 shows only one side of the left and right side walls 11, 11, the handle 32 may be provided on both sides of the delivery roll 3 or only on one side. There may be. Moreover, although illustration is abbreviate | omitted about the winding side, it shall have the structure similar to the sending side. The delivery roll 3 and the take-up roll 5 are rotated by a user rotating a handle 32 positioned outside the frame 1 (side wall 11).

  The hammering device 4 is for hammering the weft Y inserted into the opening of the warp T to the weave F, and has a hammer 41 supported by a hammer support portion 42 extending in the width direction. (FIG. 1). The heel support portion 42 has leg portions 43 fixed at appropriate positions on both ends and an intermediate portion of the lower surface thereof, and a rocker rotatably mounted between the left and right side walls 11, 11 via the leg portion 43. It is supported on the moving shaft 44. Accordingly, the flange 4 can swing in the front-rear direction about the axis of the swing shaft 44. The swinging of the reed 4 is also performed manually by the user, and the weft Y is inserted into the opening of the warp T between the reed 4 and the weaving front F in a state where the reed 4 is retracted to the delivery side. Thereafter, the weft Y is beaten against the woven fabric F by swinging the kite 4 forward (winding side).

  The warp opening mechanism 2 according to the present invention is mainly composed of an arm 21 as an actuating member, a fork 22 as a reed member and a fork 22 provided for each warp T, and a solenoid 25 as a drive means for each fork 22. It is comprised by the selection mechanism containing the solenoid 25 provided in.

  The arm 21 as an operating member is a thin plate-like member formed in a substantially fan shape when viewed from the side (as viewed in the width direction) (FIG. 1). The arm 21 includes a guide portion 21a and a support portion 21b formed so as to be continuous with one end of the guide portion 21a. An end surface of the guide portion 21a opposite to the support portion 21b is an arc surface 21a1. Is formed. Furthermore, it has an engaging groove 21a2 which is an engaging groove 21a2 for hooking a guide portion 21ba and a fork 22 which will be described later, and which is open to the arc surface 21a1. Further, the support portion 21b is formed in a cylindrical shape, and has a through hole 21b1 penetrating in the width direction and having a through hole 21b1 formed so that the center thereof coincides with the axis of the support portion 21b. Yes. The support portion 21b is formed so that the dimension in the width direction is larger than that of the guide portion 21a, and the center in the width direction coincides with the center of the guide portion 21a. Accordingly, the support portion 21b protrudes by the same length on both sides of the guide portion 21a in the width direction. Further, the arc surface 21a1 of the guide portion 21a is formed so that the center of the arc coincides with the center of the axis (through hole 21b1) of the support portion 21b.

  The arm 21 is supported by the frame 1 by inserting a support shaft 14 extending between the left and right side walls 11 of the frame 1 into a through hole 21b1 in the support portion 21b, and the arc surface 21a1 of the guide portion 21a. Are arranged so as to extend in the front-rear direction in a state of facing the front F. The arm 21 is attached so as not to rotate relative to the support shaft 14, and with the rotation of the support shaft 14, the axis of the support shaft 14 (the axis of the support portion 21 b of the arm 21) is the rotation center. It is intended to rotate.

  In the warp opening mechanism 2, a plurality of arms 21 as described above are provided, and the plurality of arms 21 are arranged in the width direction. The number of the arms 21 is determined by the width dimension of the frame 1 and the thickness dimension (width dimension) of the arm 21. However, in the case of hand looms intended for personal use, if the size in the width direction is too large, the usability deteriorates. Therefore, the size in the width direction of the frame 1 is appropriate according to the convenience, and the arm accordingly The number of 21 is also determined. In the warp opening mechanism 2 according to the present invention, each warp T fed from the feed roll 3 is conducted between the adjacent arms 21 and 21, so the number of arms 21 can be used for weaving. This corresponds to the number of warps T.

  Each arm 21 is supported in a state in which end surfaces on both sides in the width direction of the support portion 21 (one end surface for the arms 21 located at both ends) are in contact with the end surfaces of the adjacent arms 21. It is arranged on the shaft 14. Therefore, the guide portions 21a of the arms 21 are arranged in the width direction with a space in the width direction with respect to the guide portions 21a of the adjacent arms 21. Incidentally, the interval between the guide portions 21a and 21a in the two adjacent arms 21 and 21 is determined by a dimensional difference in the width direction between the guide portion 21a and the support portion 21b in each arm 21, and the dimensional difference is The thickness is determined in consideration of the thickness of the warp T expected to be used. For example, in consideration of the thickness of the warp T assumed to be used, when the distance between two adjacent guide portions 21a, 21a is required to be about 5 mm, each arm 21 is set so that the dimensional difference is about 5 mm. A support portion 21b is formed with respect to the guide portion 21a.

  As shown in FIGS. 2 and 3, the support shaft 14 that supports the arms 21 so as not to rotate relative to each other is provided so as to penetrate the side walls 11 on at least one side of the left and right side walls 11, 11 in the frame 1. An operation lever 14a for operating the arm 21 is attached to a portion protruding from the side wall 11 of the support shaft 14 so as not to be relatively rotatable. Then, when the user operates the operation lever 14a, each arm 21 is rotationally driven through the support shaft 14. The operation lever 14a may be provided on both sides of the left and right side walls 11, 11, or may be provided only on one side.

  The fork 22 as a flange member is a thin plate-like member formed in a thickness dimension that can be inserted between the guide portions 21a, 21a of two adjacent arms 21, 21. A plurality of forks 22 are provided in the width direction so as to be positioned between two adjacent arms 21, 21 of the plurality of arms 21 arranged in a row. Each fork 22 is disposed on the front side F of the arm 21 in the front-rear direction.

  Each fork 22 has a longitudinal dimension that extends from the vicinity of the path of the warp T to the vicinity of the lower portion of the frame 1 in the vertical direction in the state provided in the hand loom HL. In addition, each fork 22 has an engaging portion 22a attached to the upper end portion, and is formed on the end surface on the front side of the anti-weaving side (arm 21 side) between the upper end portion and the vicinity of the intermediate portion in the extending direction. It has an overhang portion 22b. In the illustrated example, the protruding portion 22b is formed in a substantially triangular shape when viewed from the side, and extends to the fork 22 so as to protrude from the end surface on the front side of the anti-weaving side toward the arm 21 in the front-rear direction. It is integrally formed. Further, the fork 22 has a long hole-shaped guide hole 22 c that penetrates in the width direction and extends in the extending direction of the fork 22 from the vicinity of the intermediate portion to the lower portion in the vertical direction.

  The engaging portion 22 a is formed by an engaging pin whose axis is directed in the width direction, and the dimension in the axial direction is larger than the thickness dimension of the fork 22. More specifically, the engaging pin 22a as the engaging portion has a dimension in the axial direction (width direction) larger than the thickness dimension of the fork 22, and the thickness dimension of the fork 22 and the thickness of the arm 21. It is formed to be smaller than the sum of the dimensions. The engagement pin 22 is fixed to the upper end edge of the fork 22 in a state where the center in the axial direction coincides with the center of the fork 22 in the width direction. Therefore, the engaging pin 22a is provided integrally with the fork 22 so as to protrude equally on both sides of the fork 22 in the width direction.

  Between the left and right side walls 11, 11 of the frame 1, a guide shaft 15 is installed between the arm 21 and the weave F in the front-rear direction and at a position below the support shaft 14 in the vertical direction. Each fork 22 is provided in the hand loom HL in a state where the guide shaft 15 is inserted into the guide hole 22c, and the guide shaft 15 is brought into contact with the inner peripheral surface of the guide hole 22c and the guide shaft 15. The position in the front-rear direction is restricted at position 15. In addition, each fork 22 is provided in a state where the overhang portion 22b is inserted between two adjacent (adjacent) arms 21 and 21 so that the position in the width direction is regulated. In the state of being in the position, the engagement pin 22a is supported (latched) by the arm 21 by engaging with the engagement groove 21a2 of the arm 21. However, the initial position mentioned here means that the engaging pins 22a of all the forks 22 engage with the engaging grooves 21a2 of the arms 21 so that the forks 22 are hooked on the arms 21 and the arms 21 receive the warp T. The warp opening mechanism 2 is in the initial state when the arm 21 is in the initial position.

  In this initial state, the guide shaft 15 is inserted into the guide hole 22 c at a position below the upper end of the guide hole 22 c with respect to the guide hole 22 c of the fork 22. That is, the guide hole 22c is formed so as to extend toward the upper end portion side of the fork 22 from the position (insertion position) through which the guide shaft 15 is inserted in the initial state. In addition, since the dimension of the axial direction of the engaging pin 22a in each fork 22 is set as described above, the protruding amount from the fork 22 in the width direction is smaller than ½ of the thickness dimension of the arm 21. ing. Therefore, even if the engaging pins 22a and 22a of the two adjacent forks 22 and 22 engage with the engaging groove 21a2 of the common arm 21, the engaging pins 22a and 22a do not interfere with each other.

  A selection mechanism is provided below the arm 21 to switch the engagement pin 22a of the fork 22 and the engagement groove 21a2 of the arm 21 from the engaged state to the non-engaged state. This selection mechanism has a pusher base 24 as a base, the pusher base 24, a pusher 23 mounted on the pusher base 24 corresponding to the fork 22, and a solenoid as drive means. And a solenoid 25 provided for each pusher 23 (fork 22).

  The pusher base 24 is a member having a substantially U-shaped cross section in which both end portions of the plate material are bent by 90 °. 11, and a mounting surface 24 a that is the upper surface thereof is provided so as to exist between the left and right side walls 11, 11 in the width direction. Further, as shown in the figure, the pusher base 24 is attached to the frame 1 so as to be inclined with respect to the front-rear direction so that the pre-weaving F side of the placement surface 24a is higher than the anti-weaving F side. In this state, the mounting surface 24 a has such a length dimension that extends from the vicinity of the end of the arm 21 on the pre-weave F side to the vicinity of the delivery roll 3.

  In addition, on the mounting surface 24a of the pusher base 24, a selection is made to release the engagement state of the engagement pin 22a of the fork 22 from the engagement groove 21a2 of the arm 21 and to release the engagement state between the two. A pusher 23 as a member is placed. The pushers 23 are plate-like members having substantially the same thickness as the forks 22, and a plurality of pushers 23 are provided so as to correspond to the forks 22 on a one-to-one basis.

  Each pusher 23 extends in the front-rear direction on the pusher base 24, and has a base 23a having a large height dimension (a dimension in a direction orthogonal to the extending direction) when viewed from the side, and a front side F of the base 23a ( The fork 22 side) has an actuating part 23b formed continuously at the end and having an actuating part 23b having a height dimension smaller than that of the base part 23a. Each pusher 23 is disposed so as to be positioned between two adjacent arms 21 and 21 in the width direction, and is provided to face the corresponding fork 22 and the operating portion 23b in the front-rear direction. . In the illustrated example, the guide portion 21a in each arm 21 is formed to extend to the position where the pusher 23 exists in the vertical direction at each position within the rotation range of the arm 21 described later. Accordingly, each pusher 23 has its base portion 23a regulated by the guide portions 21a and 21a of the arms 21 and 21 located on both sides in the width direction on the placement portion 24a of the pusher base 24 in the front-rear direction ( The movement of the pusher 23 in the extending direction) is provided so as to be guided.

  A plurality of solenoids 25 as drive means are provided on the pusher base 24 in a one-to-one correspondence with the pushers 23. In this embodiment, each solenoid 25 is a push type in which a plunger (movable iron core) 25a is housed in a body portion 25b so as to be able to advance and retreat in a non-excited state, and the plunger 25a operates in a protruding direction when excited. Shall be. Each solenoid 25 is fixedly arranged on the pusher base 24 at a position where the front end surface of the plunger 25a faces the end surface (rear end surface) of the pusher 23 on the F side before anti-weaving in the width direction.

  As described above, the mounting surface 24a of the pusher base 24 is inclined so that the front F side is higher. Therefore, each pusher 23 slides back on the placement surface 24a (F side before anti-weaving), abuts against the plunger 25a of the solenoid 25, and its rearward movement is restricted. It has become. Accordingly, when the solenoid 25 is excited and the plunger 25a moves in the protruding direction, the plunger 25a pushes the rear end surface of the pusher 23, and the pusher 23 is displaced toward the fork 22 side. Further, by deactivating the solenoid 25, the pusher 23 slides down on the pusher base 24, and the pusher 23 pushes back the plunger 25a. Then, the displacement of the pusher 23 on the side opposite to the fork 22 stops.

  The position of each solenoid 25 in the front-rear direction on the pusher base 24 is such that when the plunger 25a is in the last retracted position (the solenoid 25 is in a non-excited state), the tip of the operating portion 23b of the pusher 23 is in the initial state. The fork 22 is set so as to be slightly separated from the end surface of the fork 22 on the front side F side. Therefore, each pusher 23 is provided so that the rear end surface thereof is supported by the plunger 25a of the solenoid 25 and the front end of the operating portion 23b is slightly separated from the fork 22 when the solenoid 25 is in the non-excited state. Yes.

  Further, with respect to the vertical position of each pusher 23, each pusher 23 is provided such that the tip of the operating portion 23 b faces the fork 22 above the insertion position of the guide shaft 15 in the fork 22. In other words, the tip of the operating portion 23b and the guide shaft 15 in each pusher 23 are spaced apart from each other in the extending direction of the fork 22, and the guide shaft 15 is positioned below the operating portion 23b of the pusher 23. It has become. Therefore, the height position of the pusher base 24 on the pre-weaving F side (fork 22 side) is set so that the arrangement of the pusher 23 as described above can be realized.

  Furthermore, in the illustrated example, the pusher 23 has two types of shapes. That is, in this embodiment, the two adjacent pushers 23 and 23 are the first ones shown on the upper side of FIG. 5A as shown in the side view of FIG. 5A and the plan view of FIG. Pusher 23-1 and a second pusher 23-2 shown below, and an extended portion 23c extending from the base 23a to the rear side (F side before the anti-weaving) with respect to the first pusher 23-1. It has a second pusher 23-2. Further, the extending portion 23c of the second pusher 23-2 has a concave portion 23c1 for allowing overlapping of the positions of the second pusher 23-2 and the solenoid 25. This is because the dimension in the width direction of the main body portion 25b in the solenoid 25 is larger than the interval between the two adjacent pushers 23, 23.

  More specifically, as shown in FIG. 5B, when the distance between the pushers 23 and the width dimension of the solenoid 25 are compared, the pushers 23 are arranged at an equal pitch in the width direction, and the two first pushers 23 are arranged. -1 and 23-1 and the distance p between the two second pushers 23-2 and 23-2 is smaller than the width dimension w of the main body 25b of the solenoid 25, the plunger 23a of the pusher 23 and the solenoid 25 in the width direction. This is because the solenoids 25, 25 corresponding to the first pusher 23-1 and the second pusher 23-2 adjacent to each other cannot be disposed at the same position in the front-rear direction. For this reason, the adjacent solenoids 25 and 25 need to be arranged with their positions shifted in the front-rear direction. To cope with this, the second pusher 23-2 has an extending portion 23c with respect to the first pusher 23-1. It has become.

  The extending portion 23c of the second pusher 23-2 includes a recess 23c1 that allows overlapping of the position with the solenoid 25 corresponding to the first pusher 23-1, and both sides in the width direction and the pusher base. A recess 23c1 is formed with the 24 side open. However, the recess 23c1 can receive the solenoid 25 corresponding to the first pusher 23-1 at the last retracted position where the plunger 25a of the solenoid 25 is most retracted, and the second pusher by driving the solenoid 25. It is formed to allow movement in the front-rear direction of 25-2. In the illustrated example, the pushers 23 having two types of shapes are used. However, the solenoid 25 corresponding to a certain pusher 25 is arranged in the width direction in relation to the arrangement pitch of the pushers 23, the width dimension w of the solenoid 25, and the like. In the case where the positions of the two adjacent pushers 23 overlap with each other, the pusher 23 having another shape having an extending portion extending further rearward than the rear end surface of the second pusher 23-2 described above ( A third pusher or the like) is used.

  In the hand weaving machine HL having the warp opening mechanism 2 configured as described above, each of the plurality of warps T drawn from the delivery roll 3 is turned by the guide roll 12 so as to go to the front of the fabric F, A plurality of arms 21 arranged in the width direction are inserted between the adjacent guide portions 21a and 21a of the two arms 21 and 21 and then passed through the scissors 41 in the scissor driving device 4 to the front weave F. Led.

  Accordingly, in the warp opening mechanism 2, the position of each warp T in the width direction is regulated by the guide portions 21a and 21a of the two adjacent arms 21 and 21, and between the two guide portions 21a and 21a. The fork 22 is located above the engaging pin 22a. Therefore, in the warp opening mechanism 2, the arm 21 is moved upward (clockwise in FIG. 1) in a state where the engagement pin 22a of the fork 22 is engaged with the engagement groove 21a2 of the arm 21 and the fork 22 is hooked on the arm 21. The fork 22 is lifted by turning it in the direction), and the warp T corresponding to each fork 22 is lifted by the fork 22 and brought to the upper opening position of the warp opening. Hereinafter, the direction of rotation of the arm 21 and the operation lever 14a from the initial position of the arm 21 toward the upper opening position is referred to as an opening direction, and the direction of rotation in the opposite direction (counterclockwise in FIG. 1). Direction) is called the anti-opening direction

  In the illustrated configuration, in the initial state, the position of the engaging pin 22 of the fork 22 locked in the engaging groove 21a2 is the upper end of the guide roller 12 on the delivery side and the upper end of the guide roller 13 on the take-up side. An engagement groove 21a2 is formed in the arm 21 so as to be positioned above a straight line connecting the two. Therefore, the fork 22 in the initial state is urged (pressed) downward by the engagement pin 22a by the tension of the corresponding warp T.

  Further, the arm 21 needs to be positioned at least at an initial position and an opening position where the warp T is positioned to the upper opening position via the fork 22. Therefore, the operation lever 14a attached to the end portion of the support shaft 14 can be positioned at a first position corresponding to the initial position of the arm 21 and a second position corresponding to the opening position by a mechanism (not shown). It has become. Further, the operation lever 14a is set with a rotation limit in the counter-opening direction so that the arm 21 can be further rotated in the counter-opening direction from the initial state.

  The operation of the warp opening mechanism 2 configured as described above will be described below with reference to FIGS. As described above, in the warp opening 2, each fork 22 corresponds to the warp T, and a pusher 23 and a solenoid 25 for driving the pusher 23 are provided corresponding to each fork 22. Therefore, the warp opening mechanism 2 is provided with a combination of the fork 22, the pusher 23, and the solenoid 25 for each warp T. In the following description, these are described as having a corresponding relationship.

  First, in the initial state, as shown in FIG. 6A, the operation lever 14a is positioned at the first position corresponding to the initial position of the arm 21. 21 is in a stationary state at the initial position. At this time, all of the forks 22 are engaged with the engagement grooves 21a2 and 21a2 of the arms 21 and 21 located on both sides by the engagement pins 22a, and are suspended from the arms 21 by the engagement pins 22a. In the vicinity of the intermediate portion in the extending direction, the surface facing the pusher 23 on the inner peripheral surface of the guide hole 22c comes into contact with the guide shaft 15 inserted through the guide hole 22c, thereby moving the position in the front-rear direction. (Displacement to the pusher 23 side) is regulated. At this time, each solenoid 25 is in a non-excited state and the plunger 25a is in the last retracted position. Therefore, the pusher 23 has the operating portion 23b whose tip is on the F side before the anti-weaving of the fork 22. It is in the standby state slightly separated from the end face.

  From that state, in order to release the engaged state of the fork 22 other than the fork 22 corresponding to the warp T to be selected (selected) at the upper opening position, the solenoid 25 corresponding to the fork 22 is excited to push the pusher. 23 is displaced toward the fork 22 (FIG. 6B). It should be noted that the selection state of each warp T in each weft insertion (each step of weaving) according to the structure of the woven fabric W to be woven, that is, each warp T is positioned at the upper opening position or in the initial state. The setting as to whether or not to be positioned at the corresponding closing position is created in advance as an opening pattern and is stored in a controller (not shown) of the solenoid 25. This opening pattern is, for example, for each step of weaving corresponding to each weft insertion in a matrix frame corresponding to the number of rows corresponding to the number of warps and the number of rows corresponding to one repeating step of the structure ( For each line), the warp T brought to the upper opening position is set to be selected.

  In each weft insertion, when the user operates a switch or the like (not shown), the solenoid 25 corresponding to the non-selected warp T is excited based on the setting of the corresponding step in the opening pattern. Along with this, the pusher 23 corresponding to the excited solenoid 25 is displaced toward the fork 22, whereby the pusher 23 comes into contact with the fork 22 and pushes the fork 22 toward the front side F. At this time, displacement of the fork 22 in the front-rear direction is restricted by the guide shaft 15 inserted in the vicinity of the intermediate portion, and the front end of the operating portion 23b of the pusher 23 contacts the fork 22 above the guide shaft 15. In order for the fork 22 to come into contact, the surface of the inner peripheral surface of the guide hole 22c opposite to the surface facing the pusher 23 abuts against the guide shaft 15, and as shown by the two-dot chain line in FIG. The engagement pin 22a rotates in a direction away from the arm 21 around the contact position of the inner peripheral surface of the hole 22c with the guide shaft 15 as a center. As a result, the engagement pin 22a of the fork 22 corresponding to the non-selected warp T is released from the engagement groove 21a2 of the arm 21, and the engagement state of the fork 22 with respect to the arm 21 is released. In this case, the state in which the fork 22 is pushed and rotated by the pusher 23 and the engagement pin (engagement portion) 22a is separated from the arm 21 is the "operation member (arm 21)" in the present invention. “A state where engagement is possible and a state where engagement is impossible”.

  Further, in the illustrated configuration, the guide hole 22c through which the guide shaft 15 in the fork 22 is inserted has an extending portion that extends to the upper end side of the fork 22 from the insertion position of the guide shaft 15 in the initial state as described above. Is formed. Therefore, when the engagement state of the fork 22 with respect to the arm 21 is released as described above, the fork 22 is guided by the guide shaft 15 as shown by the solid line in FIG. The extended portion is dropped together with the release of the engaged state due to its own weight and the pressing force by the warp T. With this configuration, after the engagement pin 22a of the fork 22 is disengaged from the engagement groove 21a2 of the arm 21, the state where the fork 22 is unlocked by the arm 21 is maintained even if the solenoid 25 is immediately de-energized. Therefore, the excitation period for the solenoid 25 can be shortened (temporarily).

  More specifically, in the configuration of the present embodiment, the straight line connecting the engaging pin 22a of the fork 22 and the guide shaft 15 in the initial state is inclined toward the arm 21, and the fork 22 is guided by its own weight. The upper side of the insertion position of the shaft 15 is leaning to the arm 21. In addition, the position of the solenoid 25 (fork in the initial state) is taken into consideration so that the fork 22 is inclined toward the arm 21 even when pushed by the pusher 23 in consideration of the protruding amount of the plunger 25a when the solenoid 25 is excited. 22 and the pusher 23) is set. Therefore, when the fork 22 is pushed by the pusher 23, the tilt is supported by the pusher 23. This is to prevent the fork 22 from tilting toward the pre-weave F side when the fork 22 is pushed by the pusher 23. Therefore, the fork 22 always leans toward the arm 21 due to its own weight. It is supposed to be hung.

  In such a configuration, when the guide shaft 15 is positioned at the upper end of the guide hole 22c of the fork 22 in the initial state, the fork 22 is pushed toward the front side F by the pusher 23, and the engagement pin 22a is Even if the arm 21 is disengaged from the engagement groove 21a2, the solenoid 25 cannot be de-energized until the arm 21 is rotated. This is because if the solenoid 25 is brought into a non-excited state before the arm 21 is rotated, the support by the pusher 23 is lost, so that the fork 22 tilts toward the arm 21 and the engagement pin 22 is again engaged with the engagement groove of the arm 21. This is because the fork 22 is again engaged with the arm 21 even though an operation for releasing the engaged state of the fork 22 with respect to the arm 21 is performed. Therefore, when the guide shaft 15 is positioned at the upper end of the guide hole 22c of the fork 22 in the initial state, the arm 21 of the fork 22 is not operated until the user operates the operation lever 14a to rotate the arm 21. In order to support the tilting to the side, the excitation state of the solenoid 25 must be continued. In the case of this configuration, the solenoid 25 is switched from the excited state to the non-excited state by a switch operation or the like by the user so as to correspond to the operation of the operation lever 14a at an arbitrary timing by the user. There must be.

  On the other hand, in the configuration shown in the figure, as the engaging pin 22a of the fork 22 is disengaged from the engaging groove 21a2 of the arm 21, the fork 22 falls by its own weight or the like by the amount corresponding to the extending portion of the guide hole 22c. The engaging pin 22a is positioned below the engaging groove 21a2 of the arm 21 in the initial state. For this reason, even if the solenoid 25 is de-energized in this state and the fork 22 tilts toward the arm 21, the engaging pin 22 a does not enter the engaging groove 21 a 2, and the fork 22 is engaged with the engaging pin 22 a and the arc of the arm 21. It will be in the state leaning on the surface 21a1. Therefore, in the illustrated configuration, the engagement state of the fork 22 with respect to the arm 21 can be released and the released state can be maintained by exciting the solenoid 25 for a short time (temporary). . The fork 22 has the overhanging portion 22c as described above, and the overhanging portion 22c is formed so as to be located between the two arms 21 and 21 located on both sides in the width direction even after the dropping. Has been. Accordingly, even after the fork 22 is dropped, the position in the width direction is regulated by the two arms 21 and 21 located on both sides.

  As described above, when the solenoid 25 corresponding to the warp T which is set to be non-selected in the opening pattern is driven and the engagement state of the fork 22 corresponding to the solenoid 25 with respect to the arm 21 is released, the fork 22 is supported. The warp yarn T to be moved is in a state where the fork 22 is pressed downward and is in a closed position which is a position on a straight line connecting the guide rolls 12 and 13 on the feeding side and the winding side. Thereafter, when the user rotates the operation lever 14a positioned at the first position toward the second position, as shown in FIG. 7A, the arm 21 rotates in the opening direction. The fork 22 that is moved and locked to the arm 21 brings the warp T selected and set in the opening pattern to the upper opening position. However, since the fork 22 released from the locked state with respect to the arm 21 is not lifted even if the arm 21 is rotated, the warp T located above the fork 22 remains in the closed position described above. It has become. Then, the operation lever 14a is positioned at the second position, and the arm 21 is brought into a stationary state at a position corresponding to the upper opening position of the warp T, whereby the weft Y for weft insertion in the warp opening mechanism 2 is performed. An opening due to T is formed.

  As described above, the fork (hereinafter also referred to as “non-selected fork”) 22 corresponding to the warp T that has been set to be non-selective is leaning against the arc surface 21a1 of the arm 21 after dropping. It has become. As described above, the arc surface 21a1 of the arm 21 is formed so that the center of the arc coincides with the rotation center (support shaft 14) of the arm 21. Therefore, even if the arm 21 is rotated after the non-selected fork 22 is dropped, the position of the non-selected fork 22 around the guide shaft 15 leaning against the circular arc surface 21a1 does not change, and the non-selected fork 22 remains in the same state. Maintained.

  After that, the weft insertion of the weft Y by the user is performed using a shuttle or the like around which the weft Y is wound, as in a known hand-weaving machine. After the weft insertion, the operation lever 14a positioned at the second position is moved to the first position side so that the weft Y within the opening of the warp T is constrained by the warp T. And the arm 21 is rotated in the direction opposite to the opening. Then, the operation lever 14a is positioned at the first position, and in this state, the weft Y that has been inserted is beaten against the front weave F by the barb 41 of the barbing device 4 shown in FIG.

  By the way, in the warp opening mechanism 2 of this embodiment, the non-selected fork 22 is positioned below the position in the initial state after the locked state with respect to the arm 21 is released as described above. . Therefore, in the present embodiment, the rotation limit of the operation lever 14a on the side opposite to the opening direction is further opposite to the opening than the first position so that the non-selected fork 22 is again locked to the arm 21. It is set to be on the direction side. Details are as follows.

  As described above, the unselected fork 22 after falling is in a state of leaning against the arc surface 21a1 of the arc surface 21a1 of the arm 21 at the engagement pin 22a. Therefore, as shown in FIG. 7B, the arm 21 can be rotated to a position where the engagement groove 21a2 faces the engagement pin 22a of the unselected fork 22 after dropping, whereby the engagement groove 21a2 is formed. When the engagement pin 22a is reached, the engagement pin 22a re-enters the engagement groove 21a2 due to the inclination of the fork 22 toward the arm 21 due to its own weight, and the non-selected fork 22 is locked to the arm 21. It returns to the state.

  Here, when the solenoid 25 is de-energized as described above, the fork 22 loses support by the pusher 23, and the fork 22 leans against the arm 21 at the engagement pin 22a, the fork 22 is against the arm 21. Since it can be said that it is in a state where it can be re-engaged, this is a “state in which the hook member (fork 22) can be engaged with the operating member (arm 21)” according to the present invention. That is, in the present embodiment, the state in which the solenoid 25 is excited and the fork 22 is supported by the pusher 23 as described above (the state in which the engaging pin 22a of the fork 22 is separated from the arm 21) is the “actuating member in the fork 22”. The state where the solenoid 25 is in the non-excited state and the fork 22 leans against the arm 21 is the “state where the fork 22 can be engaged with the actuating member”. The selection mechanism of the present embodiment switches the state of the fork 22 to one of these two states.

  In addition, about the rotation position of the operation lever 14a, the position (third position) corresponding to the rotation position of the arm 21 where the engagement pin 22a and the engagement groove 21a2 of the non-selection fork 22 after dropping are opposed to each other. In this case, it is preferable that the operation lever 14a can be positioned. However, the re-entry of the engagement pin 22a of the non-selection fork 22 with respect to the engagement groove 21a2 is completed in a short time, and the arm 21 may be returned to the initial position after the re-entry. Positioning at the position 3 is not necessarily required, and a configuration in which the user holds and positions the operation lever 14a at that position may be employed.

  Further, in order to ensure the re-entry of the engagement pin 22a of the non-selection fork 22 with respect to the engagement groove 21a2 in the arm 21, the end surface of the fork 22 on the pre-weave F side on the pre-weave F side of the forks 22 A member that can be contacted simultaneously is provided, and the non-selected fork 22 is pushed toward the arm 21 by the member while the operation lever 14a is positioned or held at the third position to assist the re-entry. You may do it. And the member which pushes this non-selection fork 22 to the arm 21 side can also be provided in the hammering device 4.

  As described above, from the state in which the opening of the warp T is formed, the user rotates the operation lever 14a positioned at the second position in the anti-opening direction, and exceeds the first position. By rotating the arm 21 to the third position, the arm 21 is rotated from the position corresponding to the upper opening position of the warp T toward the opposite opening direction, and the engagement groove 21a2 of the unselected fork 22 has fallen. It rotates to the rotation position which opposes the combined pin 22a. Thereby, the non-selected fork 22 released from the locked state with respect to the arm 21 before the opening of the warp T returns to the locked state with respect to the arm 21 again. Thereafter, the user rotates the operating lever 14a in the opening direction and positions the operating lever 14a at the first position, whereby the warp opening mechanism 2 has an arm 21 as shown in FIG. In addition to being positioned at the initial position, all the forks 22 are locked to the arm 21.

  Then, the woven fabric W is formed by repeating the above series of operations in the warp opening mechanism 2. In addition, the woven fabric W formed in this way is guided to the take-up roll 5 side through the guide roll 13 and taken up by the take-up roll 5. In the above description, it is assumed that the hitting time of the weft Y is performed before the unselected fork 22 is returned to the locked state with respect to the arm 21. However, the operation lever 14a may be performed after being positioned in the first position.

  In addition, about the warp opening mechanism 2 of a present Example demonstrated above, the following deformation | transformation is possible.

(1) The fork 22 is disposed on the front side F of the arm 21 and the support portion 21b (support shaft 14) of the arm 21 is disposed on the front side F of the anti-weaving side relative to the arcuate surface 21a1. In addition, the fork 22 may be disposed on the anti-weaving front F side of the arm 21 and the arm 21 may be supported by the support portion 21b (support shaft 14) located on the pre-weaving F side of the arcuate surface 21a1.

(2) Although each of the plurality of arms 21 arranged in the width direction is supported by the support shaft 14, instead of this, only the two arms 21 positioned at both ends in the width direction are used. Are supported by the support shaft 14 through another member such as a support portion or a bracket formed integrally with each other, and for each arm 21 located between the two arms 21 located at both ends thereof, the adjacent arm It is good also as what is connected with 21 so that relative displacement is impossible. That is, in the present invention, the actuating member (arm 21) is supported by the frame (side wall) through the support shaft, but is not limited to being directly supported by the support shaft. It may be supported by a support shaft via an actuating member or another member.

(3) The solenoid as the driving means is a push type in which the plunger 25a moves in the protruding direction when excited. Instead, the pull type in which the plunger moves in the retracted direction when excited. It is also possible to use a solenoid. In this case, however, as shown in FIG. 8, each solenoid 25 is arranged with the plunger 25a facing rearward, and each pusher 23 'is at the base portion at a position higher than the upper surface of the body portion 23b of the solenoid 25. The extension portion 23c ′ extending rearward from 23a ′ may be provided, and the rear end portion of the extension portion 23c ′ may be connected to the plunger 25a of the solenoid 25 by a pin 23d or the like. In this configuration, the rearward movement of the pusher 23 'on the pusher base 24 is restricted by the rear end surface of the solenoid 25 located on the uppermost side (the surface opposite to the surface from which the plunger 25a protrudes). . Further, the solenoid as the driving means is not limited to one that can drive the plunger in only one direction as described above, and the pusher 23 can be positively displaced to both the fork 22 side and the anti-fork 22 side. In addition, the drive shaft may be driven in two directions. For example, the plunger may be biased in one direction by a spring or the like in the main body, and the plunger may be driven in a direction opposite to the biasing direction by the spring by being excited.

(4) The guide hole 22c formed in the fork 22 is formed so as to extend to the upper end portion side of the fork 22 from the insertion position of the guide shaft 15 of the fork 22 in the initial state. As described above, the guide shaft 15 may be arranged or the guide hole 22c may be formed so that the guide shaft 15 is positioned at the upper end of the guide hole 22c of the fork 22 in the initial state. However, in this case, when the engagement pin 22a of the fork 22 is detached from the engagement groove 21a2 of the arm 21, the operation state of the solenoid 25 must be maintained in order to maintain the state. There is.

  Further, the warp opening mechanism of the present invention is not limited to the above-described embodiment, and can be implemented by the following embodiment.

  In the above embodiment, the warp T is inserted between two adjacent (adjacent) arms 21 and 21 to restrict the position of the warp T in the width direction, and the warp T is lifted by the upper edge of the fork 22. According to the configuration, it is advantageous in that the work of passing the warps T one by one through the mails (eyes) of each heel member is not necessary in the preparation work for setting the warps T on the hand loom. However, the present invention is not limited to such a configuration, and eyelets may be formed in the heel member, and the warp T may be guided through the mail of the corresponding heel member.

  The warp opening mechanism 6 shown in FIGS. 9 and 10 is an example thereof, and a heald bar 62 as a reed member in the warp opening mechanism 6 is formed with an eye 62a for inserting the warp T at the upper end portion. The lower end portion has an engaging portion 62b that engages with a lifting lever 61 as an operating member. Further, in the illustrated example, the heald bar 62 has a support portion 62c formed at an intermediate portion. In the support portion 62c, a side surface 62c1 on the front side of the weaving side (left side in the drawing) is formed as an arc surface, and a lower portion 62c2 of the side surface on the anti-weaving side is formed as an arc surface having the same arc center as the arc surface 62c1. ing.

  The warp opening mechanism 6 has a first support base 26 corresponding to the pusher base 24 of the above-described embodiment that supports the solenoid 25 and the like, and the first support base 26 mounts the solenoid 25 and the like. It is constructed between the left and right side walls of the frame of the hand loom so that the placing surface 26a to be placed extends horizontally. An arc surface 26b having the same curvature as the arc surface 62c2 of the support portion 62c of the heald bar 62 is formed on the end surface of the first support base 26 facing the heald bar 62.

  In the illustrated example, a second support base 27 is provided on the front side of the heald bar 62 (on the side opposite to the support base 26). The second support base 27 is the same as the first support base 26. Are provided between the left and right side walls of the frame of the hand loom. Further, an arc having the same curvature as the arc surface 62c1 of the support portion 62c of the heald bar 62 is located at the position facing the arc surface 26b of the first support base 26 of the end surface of the second support base 27 on the heald bar 62 side. A surface 27a is formed. The first support base 26 and the second support base 27 are provided so as to face each other with a space in the front-rear direction, and the space is a portion below the support portion 62 c in the heald bar 62. Can pass, and the arc surfaces 62c1 and 62c2 of the support portion 62c of the heald bar 62 are in contact with the arc surfaces 26b and 27a of the respective support bases facing each other.

  Accordingly, the heald bar 62 is supported by the arc surfaces 62c1 and 62c2 of the support portion 62c in a state of being placed on the arc surface 26b of the first support base 26 and the arc surface 27a of the second support base 27. A plurality of such heald bars 62 are juxtaposed in the width direction, and the warps T are inserted into the eye holes 62a of the respective heald bars 62. In the configuration shown in the figure, the lower portion of the first support base 26 below the arcuate surface 26b at the end on the side of the heald bar 62 is cut away, and the rotation of the heald bar 62 is allowed. . Therefore, in the illustrated configuration, the heald bar 62 can be rotated only in the counterclockwise direction from the solid line in FIG.

  Further, the engaging portion 62 b provided at the lower end portion of the heald bar 62 penetrates in the thickness direction of the heald bar 62 and is formed as a long hole that is long in the longitudinal direction of the heald bar 62. The elongated hole-shaped engaging portion 62b communicates with the outside in the front-rear direction by an opening 62d formed by cutting out the front side portion of the heald bar 62 where the engaging portion 62b is formed. Yes. However, in the longitudinal direction of the heald bar 62, the size of the opening 62d is smaller than that of the engaging portion 62b. In addition, the lifting lever 61 as an operating member is in the initial state of the heald bar 62, that is, the state where it is placed on the first support base 26 and the second support base 27, and the solenoid 25 (pusher 28). The position in the front-rear direction is set so as to be located in the engaging portion 62b of the heald bar 62 in a state where it is not pushed by (non-rotating state).

  In the illustrated example, the lifting lever 61 is a rod-shaped member having a rectangular cross-section, and is supported by the side walls in a state of being laid between the left and right side walls of the frame. It can be moved up and down in the direction, and can be positioned at the upper and lower positions. The vertical dimension of the lifting lever 61 is smaller than the opening of the engaging portion 62 b in the heald bar 62. The lower position (first position) of the two upper and lower positions where the lifting lever 61 is positioned is located in the engaging portion 62b of the heald bar 62 in the initial state of the heald bar 62, and It is set to be located within the existence range of the opening 62 d in the longitudinal direction of the hold bar 62. Further, the upper position (second position) of the two upper and lower positions described above is that the warp T is brought to the opening position by lifting the heald bar 62 as the lifting lever 61 is raised to that position. Set to position.

  The selection mechanism in the warp opening mechanism 6 is the same as that in the above embodiment, and has a solenoid 25 as a driving means and a pusher 28 corresponding to the pusher 23 in the above embodiment. The solenoid 25 and the pusher 28 are provided for each heald bar 62 corresponding to each of the plurality of heald bars 62, and are placed on the placement surface 26 a of the first support base 26. In the pusher 28, the operating portion 28a at the distal end portion (the end portion on the heald bar 62 side) is more than the support surfaces (arc surfaces 26b, 27a) of the heald bar 62 in the first support base 26 and the second support base 27. It is provided so as to face the side surface of the corresponding heald bar 62 above.

  In this embodiment, the solenoid 25 can drive the plunger 25a in both forward and backward directions. Specifically, when the solenoid 25 is in an excited state, the plunger 25a advances toward the pusher 28, and when the solenoid 25 is in a non-excited state, the plunger 25a moves backward. And each solenoid 25 provided corresponding to each of a plurality of pushers 28 (heald bar 62) is connected with corresponding pusher 28 by connecting pin 25c. Further, in the illustrated example, the guide member 29 guides the movement of the pusher 28 in the front-rear direction in cooperation with the first support base 26 and extends in the width direction over the range where the pusher 28 exists. A member 29 is provided.

  In the warp opening mechanism 6 configured as described above, the solenoid 25 corresponding to the non-selected setting warp T is energized, whereby the pusher 28 is displaced toward the heald bar 62 and the heald bar 62 is pushed by the pusher 28. And receive a force to rotate counterclockwise in the drawing. As a result, the heald bar 62 rotates. As described above, the dimension of the opening 62d communicating with the engaging part 62b of the heald bar 62 in the longitudinal direction of the heald bar 62 is larger than the dimension of the lifting lever 61 in the vertical direction. Therefore, this rotation is not hindered by the lifting lever 61 located in the engaging portion 62b.

  Then, in such a state that the heald bar (non-selection heald bar) 62 corresponding to the non-selected warp T is rotated, the user manually moves the lifting lever 61 upward as shown in FIG. As a result, the lifting lever 61 comes into contact with the upper surface of the engaging portion 62b in the non-rotating heald bar (selection heald bar) 62, and the selection heald bar 62 is lifted from the initial state. As a result, the selection-set warp T inserted into the eye hole 62a of the selection heald bar 62 is brought to the opening position. Further, the non-selected heald bar 62 in the rotating state is in a state in which the lifting lever 61 is disengaged from the engaging portion 62b. Even if the lifting lever 61 is displaced upward, the engaging portion 62b is engaged with the lifting lever 61. Do not match. Therefore, the non-selected warp T inserted through the eye hole 62a of the non-selected heald bar 62 is maintained in the closed position. Therefore, the opening of the warp T is formed by such an operation.

  Here, like the selection heald bar 62, the corresponding solenoid 25 is in a non-excited state and the lifting lever 61 is positioned in the engaging portion 62b. The state of engagement with the heddle bar 62 is the “state in which the hook member (heald bar 62) can be engaged with the operating member (lifting lever 61)” according to the present invention. On the other hand, like the non-selected heald bar 62, the corresponding solenoid is energized and the lifting lever 61 is disengaged from the engaging part 62 b, and the lifting lever 61 is engaged with the heald bar 62 even when the lifting lever 61 is raised. The state of not engaging with the portion 62b is the “state in which the hook member (heald bar 62) cannot be engaged with the operating member (lifting lever 61)” in the present invention.

  In the configuration shown in the figure, the heald bar 62 is formed so that the center of gravity is positioned below the support position by the first support base 26 and the second support base 27. Therefore, in the initial state where the heald bar 62 is not pushed by the pusher 28 (solenoid 25), the center of gravity thereof is located vertically below the rotation fulcrum (the arc centers of the arc surfaces 62c1 and 62c2), that is, in the vertical direction. Try to maintain a state that extends to. Therefore, when the solenoid 25 is in a non-excited state (a state in which the plunger 25a has returned to the retreat limit), the non-selected heald bar 62 in the rotating state tends to return to the initial state. Therefore, it is necessary to switch the solenoid 25 from the excited state to the non-excited state after the lift lever 61 is displaced upward. In actual operation, the lift lever 61 is displaced upward and the second lever 61 is displaced. After being positioned at the position, the solenoid 25 is de-energized.

  After the opening of the warp T is formed as described above, the weft insertion by the user is performed. At this time, the solenoid 25 is already in the OFF state, and the non-selected heald bar 62 in the rotating state is about to return to the initial state. However, in this state, since the lifting lever 61 is present at a position above the engaging portion 62b, the non-selected heald bar 62 has its front side facing the lifting lever 61 as shown in FIG. It is supported in contact and is still in a rotating state. Then, after the weft insertion is completed, as the user displaces the lifting lever 61 downward, the non-selected heald bar 61 gradually rotates toward the initial position, and the lifting lever 61 opens. When the position 62d is reached, the lifting lever 61 enters the engaging portion 62b, and is in a non-rotating state. Then, after the user positions the lifting lever 61 at the first position, the weft is beaten before weaving by the scissors, so that the weft is woven into the warp T. The woven fabric is woven by repeating such operations.

  FIGS. 11 and 12 show a warp opening mechanism 7 as still another embodiment, a heald bar 72 as a heel member corresponding to the heald bar 62 in the embodiment of FIG. 9 and the like, and an operating member corresponding to the lifting lever 61. The operation rod 71 is provided. In the case of this warp opening mechanism 7, the heald bar 72 is supported by a pair of front and rear guide members 17, 17 provided between the side walls of the frame so as to sandwich the heald bar 72 at the upper and lower positions. The vertical displacement is guided.

  Further, unlike the lifting rod 61 of the previous embodiment, the operating rod 71 in the warp opening mechanism 7 is not supported by a frame or the like, and is a rod-like member that can be arbitrarily moved. In the illustrated example, the operation rod 71 is placed on the upper weaving side (left side of the drawing) guide member 17 when not used. The operating rod 71 has a length longer than the area where the plurality of heald bars 72 arranged in parallel in the width direction, and can be used by the user holding both ends thereof by hand. It has become.

  Further, the selection mechanism in the warp opening mechanism 7 is structurally different from the above-described embodiment, and is composed of a selection lever 73 provided below the heald bar 71 and a solenoid 25 as a driving means. The selection lever 73 is provided for each heald bar 71, and the dimension in the width direction is substantially the same as that of the heald bar 71. A plurality of selection levers 73 provided in the same number as the heald bars 71 can be rotated in the vertical direction at a position near the end on the anti-heald bar 71 side by a common support shaft 18 installed between the side walls of the frame. It is supported by. In addition, in the initial state (solenoid 25 is not driven), each selection lever 73 has its tip (end on the heald bar 71 side) on the support 19 provided between the side walls at the lower part of the frame. It is arranged in a state of being placed, and the downward rotation is blocked by the support base 19. That is, in the initial state, each selection lever 73 is supported by the support shaft 18 and the support base 19 and can only rotate upward.

  A solenoid 25 is provided for each selection lever 73 (heald bar 71), and is arranged so that the plunger 25a is directed downward in the vertical direction so that the plunger 25a acts on the selection lever 73 from above. Etc. are supported. Further, the solenoid 25 is selected by the plunger 25a at the rear end portion of the selection lever 73 (the end portion on the side opposite to the heald bar 72 and on the side opposite to the heald bar 72 than the support position of the support shaft 18) in the front-rear direction. It arrange | positions so that it may contact | abut on the upper surface of the lever 73. FIG.

  In the warp opening mechanism 7 having such a configuration, the heald bar 72 is formed with an eye hole 72a at an intermediate portion thereof, and the warp T is inserted into the eye hole 72a. In addition, an engagement groove 72b that engages with the operation rod 71 and that penetrates in the thickness direction and opens to the front side of the weave is formed at the upper end of the heald bar 72. In addition, the heald bar 72 is supported on the corresponding selection lever 73 at the lower end edge thereof, and the initial state in which the solenoid 25 is in a non-excited state, that is, the tip of the selection lever 73 is supported by the support base 19. In this state, the engagement groove 72 b is positioned below the upper surface of the upper guide member 17, and the upper end portion has a length dimension slightly protruding from the upper surface of the upper guide member 17.

  In the warp opening mechanism 7 having the above-described configuration, the selection lever that is pushed downward by the plunger 25a of the solenoid 25 with the solenoid 25 corresponding to the warp T selected and set in an excited state. 73 rotates and the tip part is displaced upward. Thereby, the heald bar (selection heald bar) 72 corresponding to the warp T selected and set is lifted upward by the amount of rotation of the selection lever 73, and the engagement groove 72b is formed as shown by a two-dot chain line in FIG. It will be in the state located above the upper guide member 17. In this state, the user holds the operation rod 71, inserts the operation rod 71 into the engagement groove 72b of each selection heald bar 72 in the lifted state, and engages the operation rod 71 and each selection heald bar 72. And Note that the solenoid 25 is brought into a non-excited state after the operating rod 71 and each selection heald bar 72 are engaged.

  Here, as described above, when the corresponding solenoid 25 is in an excited state and the engagement groove 72b is positioned above the upper guide member 17 and exposed to the outside, the operating rod 71 is moved to the engagement groove 71. 72b, that is, the operating rod 71 can be engaged with the selected heald bar 72, and this state is referred to in the present invention as "the operating member (operating rod of the rod member 72)". 71) ”. Further, as in the initial state described above, the state of the heald bar 72 in which the solenoid 25 is in a non-excited state and the engaging groove 72b is positioned below the upper surface of the upper guide member 17 is referred to in the present invention. This is a state where the member (held bar 72) cannot be engaged with the operating member (operation rod 71).

  Then, when the user lifts the operating rod 71 with the operating rod 71 and each selected heald bar 72 engaged as described above, the selected heald bar 72 is lifted upward, and the eye of the selected heald bar 72 is opened. When the warp T inserted in 72a is brought to the opening position, an opening of the warp T is formed. Each of the left and right side walls of the frame is provided with a mounting table for the operation rod 71 (not shown) at the position of the heald bar 72 in the front-rear direction and above the upper guide member 17 in the vertical direction. The state where the opening of the warp T is formed can be maintained by placing both ends of the operation rod 17 on the mounting table so that the operation rod 17 is supported.

  Next, the weft is inserted into the opening of the warp T, and after the weft insertion is completed, the user lowers the selection heald bar 72 again with the operation rod. At this time, the solenoid 25 corresponding to the selected warp T (selected heald bar 72) is brought into an excited state again, and the corresponding tip of the selection lever 73 is lifted. Then, after the operating rod 71 is lowered until the selected heald bar 72 is placed on the corresponding selection lever 73, the operating rod 71 is removed from the engaging groove 72b of the heald bar 72, and the operating rod 71 and the heald bar 72 are engaged. Is released. Thereafter, the warp opening mechanism 7 returns to the initial state by setting the solenoid 25 in a non-excited state.

  In the above, the present invention has been described by exciting three embodiments. However, the present invention is not limited to any of the embodiments described above, and various modifications can be made without departing from the spirit of the present invention. It is possible to change to

DESCRIPTION OF SYMBOLS 1 Frame 11 Side wall 12, 13 Guide roll 14 Support shaft 15 Guide shaft 17 Guide member 2 Warp opening mechanism 21 Arm (operation member)
21a Guide part 21b Support part 22 Fork (saddle member)
22a Engaging pin 22c Guide hole 23, 28 Pusher 23d Pin 24 Pusher base 24a Placement surface 25 Solenoid 25a Plunger 25b Main body part 26, 27 Support base 3 Sending roll 31 Shaft part 4 Striking device 41 筬 42 筬 Supporting part 43 Leg Part 44 Oscillating shaft 5 Winding roll 51 Shaft part 6 Warp opening mechanism 61 Lifting lever (operating member)
62 Held bar
62a Eye hole 62b Engagement part 62c Support part 7 Warp opening mechanism 71 Operation rod (operation member)
72 Held bar 72a Eye hole 72b Engaging groove 73 Selection lever F Weaving front HL Hand-weaving machine T Warp Y Y-weft

Claims (1)

A warp opening mechanism of a hand-weaving machine in which at least insertion of the weft into the warp opening is performed manually by the user,
A hook member provided for each warp, an operating member that is manually operated by a user and that engages with the hook member to cause the hook member to perform an opening operation, and is provided for each hook member A selection mechanism including a solenoid as a driving means, wherein the selection mechanism switches between a state in which the collar member can be engaged with the actuating member and a state in which the engagement is impossible.
A warp opening mechanism for a hand-weaving machine.

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