JP2013009894A - Controller unit at hand and sewing machine with embroidery function having controller unit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a controller unit at hand, which allows a user to hold an object to be embroidered with both hands, and slightly move the object to be embroidered during hand side operation, and to provide a sewing machine with an embroidery function having the controller unit at hand.SOLUTION: The sewing machine 1 with the embroidery function comprises an embroidery frame unit 10 which is operated on a table 3 for embroidery. The embroidery frame unit 10 comprises an embroidery frame 11 and the controller unit 20 at hand, which can operate the sewing machine 1 with the embroidery function. A controller positioning device 50 is provided in the controller unit 20 at hand, which can movably fix the controller unit 20 at hand at an arbitrary position on the embroidery frame 11.

Description

  The present invention relates to a hand controller unit and a sewing machine with an embroidery function including the hand controller unit.

  As a conventional technique, a base portion having a switch portion (operation switch) for operating an operation of a sewing machine (sewing machine with embroidery function) and a base end portion are connected to the base portion, and a notch is provided between the front end portions to face each other. An operation for a sewing machine having a pair of arm portions that form a finger insertion hole through which one finger of a human hand is inserted on the inner surface, and a switch portion that transmits a radio wave received by the sewing machine There is a switch (hand controller) (see Patent Document 1).

  Also, a finger type controller (hand controller), a sewing machine motor, the same speed detecting means, a starting operation means, a speed storing means and an automatic operation command means, a releasing means, and a central processing unit for controlling these are provided. There is a sewing machine (embroidery function sewing machine) provided with an automatic operation function of a finger type controller that operates by operating the finger type controller as a starting operation means and a releasing means (see Patent Document 2).

JP 2002-28390 A Japanese Patent Laid-Open No. 06-292788

  However, in the sewing machine shown in Patent Document 1, since the hand controller is inserted into the finger and fixed, the embroidery frame is difficult to operate by moving the finger with the hand controller or the thumb to operate. However, there is a problem that it is difficult to move the embroidery object delicately.

  Further, in the sewing machine shown in Patent Document 2, since the hand controller is operated with one hand, there is a problem that it is difficult to hold the embroidery object with both hands, and it is difficult to move the embroidery object delicately.

  Therefore, the present invention has been made in view of the above problems, and a hand controller that can hold an embroidery object with both hands and can move the embroidery object delicately while operating the hand during sewing operation. A sewing machine with an embroidery function is provided, which is provided with a hand controller unit that can be moved as a unit, and can be used to hold an embroidery object with both hands while operating the hand controller. This is the issue.

  The problem-solving means of the present invention is a hand controller unit that is attached to an embroidery frame and can change a sewing width or a sewing speed when a sewing machine is operated, and can be moved with respect to the embroidery frame and can be fixed at an arbitrary position. A hand controller unit having a controller positioning device was used.

  According to another aspect of the present invention, there is provided a sewing machine with an embroidery function comprising an embroidery frame unit comprising an embroidery frame operated on a table for performing embroidery and a hand controller unit operable at hand. Is configured to include a controller positioning device that can move on the embroidery frame and can be fixed at an arbitrary position.

  In this case, the hand controller unit may include a ball bearing in contact with the upper surface of the embroidery frame.

  The controller positioning device may include a cam that allows the hand controller unit to be fixed on the embroidery frame, and an operation lever that operates attachment / detachment of the cam to / from the embroidery frame.

  Furthermore, the hand controller unit may include a hand controller having an operation switch operable by hand, and a mounting base having the controller positioning device.

  Furthermore, the fifth problem solving means of the present invention may be configured such that the hand controller unit includes a switch position selection device capable of changing an attachment posture for attaching the hand controller to the mounting base.

  According to the present invention, the hand controller unit enables the hand controller unit to be held with a palm or a finger together with the embroidery frame, thereby facilitating the operation of the hand controller unit.

  In addition, the embroidery frame can be held with both hands while embroidery is performed, and the embroidery frame can be easily moved delicately.

  Furthermore, since the hand controller unit can be moved on the embroidery frame by the controller positioning device and can be fixed at an arbitrary position, the hand controller unit can be used when changing the embroidery part or direction in the embroidery frame unit. It is possible to re-fix by sliding to a position where it is easy to operate.

  Since the hand controller unit includes the ball bearing, the hand controller unit can be smoothly moved on the embroidery frame unit.

  Since the controller positioning device includes the operation lever and the cam, the operability when attaching / detaching the hand controller unit on the rail is further improved.

  In addition, it is equipped with a switch position selection device that can change the mounting posture for attaching the hand controller to the mounting base, so that the operation switch mounting posture can be used on the mounting base according to the length of the user's finger and the movable range. It is possible to adjust the position, height, or angle that is easy for a person to operate.

It is a perspective view explaining the state which attached the embroidery frame and the hand controller unit of this invention to the sewing machine with an embroidery function. It is a perspective view explaining the embroidery frame unit shown in FIG. It is an exploded explanatory view of the mounting base of the hand controller unit of the present invention. It is state explanatory drawing of the selection lever shown in FIG. 3 of this invention.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 is an explanatory diagram of a state in which the embroidery frame 11 and the hand controller unit 20 are attached to the sewing machine 1 with the embroidery function. The sewing machine 1 with an embroidery function includes an extension table 3 (table) on the lower left side of the drawing of the sewing machine 1 with an embroidery function, and an embroidery frame unit 10 on the extension table 3. The embroidery frame unit 10 is movable by the user on the expansion table 3 when embroidery is performed, and can be detached from the expansion table 3 after the embroidery is completed. A harness 5 for transmitting an operation signal from the hand controller unit 20 to the sewing machine 1 with the embroidery function is connected via the connector 7 between the hand controller unit 20 and the sewing machine 1 with the embroidery function. Here, although the operation switch 23 of the hand controller 21 is described in the horizontal direction, it can be installed in the vertical direction as necessary. Here, the harness 5 is turned to the front of the sewing machine 1 with the embroidery function and connected to the sewing machine 1 with the embroidery function. However, if necessary, the harness 5 is hooked on the lower surface of the extension table 3 and is turned behind the sewing machine 1 with the embroidery function. It is also possible to connect them. Furthermore, although the harness 5 is connected to the hand controller 21 and the sewing machine 1 with the embroidery function through the connector 7 here, it is also possible to connect directly without using the connector 7. Although the extended table 3 has been described here, a normal table (not shown) can be used instead.

  FIG. 2 is an explanatory diagram of the embroidery frame unit 10. The embroidery frame unit 10 includes a controller unit 20 made of a resin such as polyacetal having a good slidability on a rail 13 formed on a resin embroidery frame 11 such as a polyphenylene ether having a good slidability. The slide (movable) state is provided. The embroidery frame 11 has an inner frame 12 having a rail 13 formed on the upper portion and an outer frame 15 for sandwiching a cloth 19 between the inner frame 12. The outer frame 15 is formed with two screw holes 17 on the outer periphery of the outer frame 15 and on both sides of the joint 16 so that a fixing thumbscrew 18 capable of opening and closing the joint 16 of the outer frame 15 can be screwed. Yes. The hand controller unit 20 is slidable on the rail 13 and can be fixed at an arbitrary position on the rail 13, and is a slippery resin mounting base 30 such as polyacetal, and the sewing machine 1 with embroidery function is started. A hand controller unit 20 capable of operating stop and speed.

  The mounting base 30 holds the lower surface of the rail 13 while forming a minute gap between the lower surface 31 that slides on the rail 13 having a width of about 23 mm and the lower surface of the rail 13 so as not to be detached from the rail 13. A rail holding claw 32 having a width of about 5 mm and a length of about 5 mm and a pitch of about 19 mm that slides on the lower surface of the rail 13 even when in contact with the lower surface. Further, the mounting base 30 has a hand controller fixing claw 33 that can be inserted and fixed in or removed from the mounting hole 22 of the hand controller 21 on the side surface. The hand controller 21 has an operation switch 23 and a mounting hole 22 into which the hand controller fixing claw 33 can be inserted and fixed. By making it possible to change the combination of inserting and fixing the hand controller fixing claw 33 into the mounting hole 22, a switch position selection device is formed that can change the mounting posture for mounting the hand controller unit 20 to the mounting base 30. The operation switch 23 has a variable resistor 24 called a potentiometer that transmits an operation amount to the sewing machine 1 with an embroidery function. Here, the hand controller 21 is described in a form in which the sewing width can be adjusted, but it is also possible to make the hand controller 21 in a form in which the sewing speed can be adjusted. It is also possible to provide a positioning rack 14 at the center on the rail 13. Further, the hand controller fixing claw 33 can be replaced by other fastening means such as a screw or a pin. Further, the mounting base 30 and the hand controller 21 can be integrally formed.

  FIG. 3 is an exploded explanatory view of the mounting base 30 of the hand controller unit 20. (A) is a whole exploded explanatory view, (b) is a cross-sectional explanatory view of the storage portion 35. The mounting base 30 has four metal ball bearings 39 that can be rotated individually in four storage portions 35 formed on a base 34 made of resin such as polyacetal having good slipperiness to hold the rail 13 up and down. Stored. Further, four metal ball bearings 39 are sandwiched by the cover 40 from above the mounting base 30, and the base 34 and the resin cover 40 are fastened by two screws 43. Further, the rotation shaft hole 52 of the selection lever 51 is fitted into the recess 41 of the cover 40, and the selection lever 51 is fastened to the cover 40 so as to be rotatable by a single lever pin 53.

  On the lower surface of the storage portion 35, an opening 36 is opened to such an extent that when the hand controller unit 20 is assembled on the rail 13, a part of the ball bearing 39 rotates in contact with the rail 13 and does not come off the mounting base 30. ing. The openings 36 have a pitch at which the positioning rack 14 provided at the central portion on the rail 13 and the ball bearing 39 do not contact each other, and a pitch at which the ball bearing 39 moves smoothly on the rail 13 without play. And is provided. Further, on the lower surface of the cover 40, when a part of the ball bearing 39 rotates in contact with the rail 13, the bearing retainer is provided so that the ball bearing 39 contacts the lower surface of the cover 40 which is the upper surface of the rail 13 and the storage portion 35. A boss 42 is formed. On the other hand, on the upper surface of the base 34, when the selection lever 51 is rotated, a flexible slide-side lock claw 37 that can be attached to and detached from the slidable position and a flexible fixed-side lock that can be attached to and detached from the fixed position. A nail 38 is formed. The ball bearing 39 can be replaced with a resin such as polyamide having good sliding properties.

  FIG. 4 is an explanatory diagram of the state of the selection lever 51. (A) is explanatory drawing in a slidable position, (b) is explanatory drawing in a fixed position. The selection lever 51 includes a handle 54 for rotating the selection lever 51 when the user slides or fixes the hand controller unit 20 on the rail 13, and a user fixes the hand controller unit 20 on the rail 13. And a cam 55 for floating the hand controller unit 20 from the rail 13. The cam 55 forms a convex portion that exhibits a spring property by being bent by about 1 mm in the height direction when the hand controller unit 20 is floated from the rail 13. In the selection lever 51, the handle 54 and the cam 55 are integrally formed of a resin such as polyacetal which is not easily broken even by repeated stress when exhibiting the spring property.

  Below, operation | movement of the sewing machine 1 with an embroidery function of this invention is demonstrated.

  When performing the embroidery, in the state shown in FIG. 1, the hand controller unit 20 is rotated to the slidable position shown in FIG. Twelve rails 13 are inserted and fitted onto the rails 13 from a constricted portion 13a having a width of 17 mm provided at a predetermined position (one place in FIG. 2 is not limited to this). Then, after sliding to the target position, the controller 51 is fixed on the rail 13 with the selection lever 51 rotated to the fixed position shown in FIG. At this time, the hand controller unit 20 is lifted by a cam 55 formed on the selection lever 51, and the rail 13 is sandwiched vertically by the rail holding claws 32 and the cam 55 formed at the lower part of the hand controller unit 20. The hand controller unit 20 is fixed to the rail 13 by dynamic resistance.

  Next, a cloth 19 to be embroidered is sandwiched between the inner frame 12 and the outer frame 15 of the embroidery frame 11. Thereafter, the fixing thumbscrew 18 is inserted into the two screw holes 17 of the outer frame 15 to tighten the joint 16 of the outer frame 15, and the outer frame 15 is tightened to the inner frame 12 while pulling the cloth 19 to be embroidered. The assembled embroidery frame unit 10 is placed on the extension table 3 and the hand controller unit 20 is held with the left hand while holding the embroidery frame 11 with both hands. Further, the left thumb of the left hand is placed on the operation switch 23 and the sewing width of the sewing machine 1 with the embroidery function is adjusted while operating the pushing amount of the operation switch 23, and the embroidery is performed by finely adjusting the sewing position with both hands. At this time, the mounting hole 22 and the position of the hand controller fixing claw 33 are combined according to the necessity such as the length of the user's thumb and the movable range, and the mounting posture, position and angle of the hand controller 21 to the mounting base 30 are determined. change. Further, when the operator wants to hold the embroidery frame 11 more firmly with the thumb while operating the operation switch 23 with a finger other than the thumb, the mounting direction of the hand controller 21 to the mounting base 30 is changed from vertical to horizontal.

  Although the operation switch 23 is described as being operated with the left hand here, it can be assembled so as to be operated with the right hand. In addition, the hand controller unit 20 is described as being fixed to the rail 13 by sliding resistance. However, the hand controller unit 20 is configured such that the tip of the cam 55 is fitted into the rack 14 installed at the center of the rail 13. It is also possible to obtain a click feeling during the movement, and to return the hand controller unit 20 to a more accurate original position when the hand controller unit 20 is moved back to the original position.

  When changing the position and orientation of the embroidery, in the state shown in FIG. 2, the selection lever 51 is rotated to the slidable position shown in FIG. Is slidable on the rail 13 and is slid to a target position. Then, the hand controller unit 20 is fixed at the target position in a state where the selection lever 51 is rotated to the fixing position shown in FIG.

  Below, the effect of the sewing machine 1 with an embroidery function of this invention is demonstrated.

  In the sewing machine 1 with an embroidery function of the present invention, the embroidery frame unit 10 includes a hand controller unit 20 that can adjust the sewing speed. Accordingly, the hand controller unit 20 can be held with the palm and fingers together with the embroidery frame 11, and the operation of the hand controller unit 20 can be facilitated. At the same time, the embroidery frame 11 can be held with both hands while embroidering, and the embroidery frame 11 can be easily moved slightly. Furthermore, since the hand controller unit 20 can be moved on the embroidery frame 11 by the controller positioning device 50 and can be fixed at an arbitrary position, when it is desired to change the embroidery part or direction in the embroidery frame unit 10, The hand controller unit 20 can be slid and re-fixed to a position where it can be easily operated.

  In the sewing machine 1 with an embroidery function of the present invention, the hand controller unit 20 includes a ball bearing 39. Accordingly, when the hand controller unit 20 is moved on the embroidery frame unit 10, it can be moved smoothly.

  In the sewing machine 1 with an embroidery function according to the present invention, the controller positioning device 50 includes an operation lever and a cam 55. Thereby, the operativity at the time of attaching and detaching the hand controller unit 20 on the rail 13 is further improved. For example, the cam 55 can be attached to and detached from the rail 13 simply by rotating the operation lever.

  Further, the sewing machine 1 with the embroidery function of the present invention includes the mounting hole 22 and the hand controller fixing claw 33 (switch position selection device) that can change the mounting posture for mounting the hand controller 21 to the mounting base 30. This makes it possible to adjust the mounting posture of the operation switch 23 to a position, height, or angle that is easy for the user to operate on the mounting base 30 according to the length of the user's finger and the movable range.

1 Sewing machine with embroidery function 3 Expansion table (table)
5 Harness 7 Connector 10 Embroidery frame unit 11 Embroidery frame 12 Inner frame 13 Rail 13a Constricted part 14 Rack 15 Outer frame 16 Joint 17 Screw hole 18 Fixing thumb screw 20 Hand controller unit 21 Hand controller 22 Mounting hole 23 Operation switch 30 Installation Base 32 Rail holding claw 33 Hand controller fixing claw 34 Base 35 Storage portion 36 Opening portion 37 Slide side locking claw 38 Fixed side locking claw 39 Ball bearing 40 Cover 41 Recess 42 Bearing holding boss 43 Screw 50 Controller positioning device 51 Selection lever 52 Rotating shaft hole 53 Lever pin 54 Handle 55 Cam

Claims (6)

A hand controller unit that is attached to the embroidery frame and can change the sewing width or sewing speed when operating the sewing machine.
A hand controller unit comprising a controller positioning device that is movable with respect to the embroidery frame and can be fixed at an arbitrary position. An sewing machine with an embroidery function comprising an embroidery frame unit comprising an embroidery frame operated on a table for performing embroidery and a hand controller unit operable at hand,
The hand controller unit is a sewing machine with an embroidery function that includes a controller positioning device that can move on the embroidery frame and can be fixed at an arbitrary position. In the sewing machine with an embroidery function according to claim 2,
The hand controller unit is a sewing machine with an embroidery function including a ball bearing in contact with an upper surface of the embroidery frame. In the sewing machine with an embroidery function according to claim 2 or 3,
The controller positioning device is a sewing machine with an embroidery function, comprising: a cam that allows the hand controller unit to be fixed on the embroidery frame; and an operation lever that operates to attach and detach the cam to the embroidery frame. In the sewing machine with an embroidery function according to any one of claims 2 to 4,
The hand controller unit is a sewing machine with an embroidery function comprising a hand controller having an operation switch operable at hand, and a mounting base having the controller positioning device. In the sewing machine with an embroidery function according to any one of claims 2 to 5,
The hand controller unit is a sewing machine with an embroidery function that includes a switch position selection device capable of changing a mounting posture for mounting the hand controller to the mounting base.

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