JP2003024672A - Embroidering machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To eliminate trouble in switch operation and to unnecessitate visual confirmation by enabling the slide operation of a switch bar even when a worker is positioned anywhere in front of a table having a plurality of expanded spots on the terminal part of the front side. SOLUTION: In the embroidering machine having the plurality of expanded spots 12 on the front terminal part of the table 10, the lower part of each expanded spot 12 is provided with a switch body 30 composed of a slidable switch bar 36 and of a switch to change over on/off by the slide operation of the switch bar 36.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an embroidery machine, and more particularly to an embroidery machine provided with a switch body for activating / stopping the machine and for switching other operating states at a lower portion of a table.

[0002]

2. Description of the Related Art FIG. 7 is a perspective view showing an example of a conventional embroidery machine (sewing machine). As shown in this figure, particularly in a multi-head embroidery machine including a plurality of sewing heads 82, a switch bar 86 is provided on the lower front side of the table 80. The switch bar 86 has a length that covers almost the entire area of the table 80 in the width direction (horizontal direction), and is supported by the lower portion of the table 80 so as to be slidable in the left-right direction of the embroidery machine. The right end of the switch bar 86 is inserted into one switch box 88 arranged on the lower right side of the table 80.
A switch (not shown) in the switch box 88 can be switched by the slide operation of 6.
By turning on / off this switch, in addition to starting / stopping the embroidery machine, frame back / frame forward and other execution commands are performed.

When the table 80 has a size shown by a solid line in FIG. 7, the operator can reach the switch bar 86 under the table 80 by arranging the table 80 anywhere on the front side of the table 80.
You can slide by holding the. By the way, in the case where the embroidery machine has a large range of embroidery in the Y direction (front-back direction), that is, in the embroidery machine in which the length of the embroidery frame 84 in the Y direction is large, the table 80 is large in the front side as shown by the virtual line in FIG. The design is overhanging.

If this happens, the front end of the table 80 will become far from the sewing machine head 82, and it will be difficult to thread the sewing machine head 82. It is provided. However, the operator cannot reach the switch bar 86 at the portions of the table 80 that project forward on both sides of each recess 90. Therefore, switch boxes 92, which are different from the switch boxes 88 of the switch bar 86, are individually provided below the protruding portions. Each switch box 92 is provided with two push buttons 94 that can be individually turned on and off.

[0005]

Therefore, the table 8
In the embroidery machine with a design in which 0 is overhanging to the front side,
In addition to the switch bar 86, there will be a plurality of switch boxes 92 each having a push button 94. As a result, the operator operates either the switch bar 86 or the push button 94 depending on the location in front of the table, causing confusion in the switch operation, and the operation of the push button 94 needs to be visually confirmed. The present invention is intended to solve the above problems, and an object of the present invention is to enable a switch bar to be slid even if an operator is present at any position in front of a table where there are overhanging positions at a plurality of positions on the front end. It is to solve the confusion of operation and to eliminate the need for visual confirmation.

[0006]

SUMMARY OF THE INVENTION The present invention is to achieve the above object. An invention according to claim 1 is an embroidery machine having a plurality of overhanging portions at a front end portion of a table. A switch body including a switch bar that can be slid and a switch that is turned on / off by sliding the switch bar is provided below each of the overhanging portions. Thereby, even if the table has the above-mentioned protruding portion, the operator in front of the table can slide any one of the switch bars in each of the switch bodies just by extending the hand. Therefore, the switch operation by the operator may be one mode such as the slide operation of the switch bar, and it is possible to avoid confusion about the operation,
There is no need for visual operations.

A second aspect of the invention is the embroidery machine according to the first aspect, wherein between each of the overhang portions in the width direction of the table, there is a recessed portion into which a worker's body can be inserted. In addition, the width direction of the table and the slide operation direction of the switch bar are substantially aligned with each other so that the operation part of the switch bar faces the recess. With this configuration, even when the operator is in the recessed portion of the table, the operator can touch the operation portion of the switch bar by extending either the left or right hand, and the switch bar can be slid.

The invention according to claim 3 is the embroidery machine according to claim 1 or 2, wherein the switch body is configured such that a switch bar is slidably inserted into a box containing a switch. Both end portions of the switch bar located outside the box are operating portions. This is convenient because the switch bar can be slid from both sides of one switch body.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below. First, the first embodiment will be described with reference to FIGS.
FIG. 1 is a perspective view showing the appearance of the entire multi-head embroidery machine (sewing machine). The table 10 of this embroidery machine is in a form of being largely projected to the front side like the table 80 shown by the phantom line in FIG. That is, the shape of the front end portion of the table 10 is three overhanging portions 12 on the left and right sides in the width direction and the center, and two recessed portions 14 are formed between them.
It has become. When performing threading or the like on the plurality of sewing machine heads 20 mounted on the frame 22 along the width direction of the table 80, the operator puts his body in one of the recessed portions 14 for the reason described above. Put in and work.

Each protruding portion 12 on the table 10
A switch body 30 is provided under each of the switches.
As is apparent from FIG. 2 which shows one switch body 30 in a perspective view, each switch body 30 has a configuration in which a switch bar 36 is inserted into a box 32, and each box 32 has an overhanging portion 12. It is fixed to the bottom surface with bolts. The switch bar 3 of each switch body 30
6 is positioned on the same line and in the direction in which the respective axis lines and the width direction (left-right direction) of the table 10 coincide (FIG. 1).

FIG. 3 is an enlarged sectional view of one switch body 30 as seen from below, and FIG. 4 is a sectional view taken along the line AA of FIG. As shown in these drawings, the switch bar 36 is supported on both side walls of the box 32 via bearing bushes 34 so as to be slidable in the axial direction. Switch bar 36 located inside the box 32
A cylindrical dock 38 having tapered surfaces 38a on both outer circumferences is fixed to a substantially middle portion of the. Return springs 42 and 43 are provided on the shaft of the switch bar 36 between the end faces of the dock 38 and the end faces of the bearing bushes 34, respectively. Also, switch bar 36
In the above, both ends of the box 32, which are exposed from both sides of the box 32, serve as operation portions 40 for sliding operation.

A switch retainer 44, which supports a switch 46, is fixed inside the box 32 by being screwed to the box 32 in the space on the back side of the switch bar 36. The switch 46 is composed of a pair of left and right limit switches 46a and 46b, and both limit switches 46a and 46b have a structure in which a normally open contact is switched on by pressing an actuator 48 of each. A roller 49 that contacts the outer peripheral surface of the dock 38 is provided at the tip of each actuator 48.

In each switch body 30, the individual switch bar 36 has limit switches 46a and 46 for the dock 38 due to the elasticity of the left and right return springs 42 and 43.
It is held in a neutral state, which is located approximately in the middle of b. Then, the operator can slide the switch bar 36 along the axis of the switch bar 36 by pushing or pulling either of the operation portions 40 of the switch bar 36. When the switch bar 36 in the neutral state is slid in the direction of compressing the return spring 42 located on the left side of FIG. 3 (left direction), the actuator 38 of the limit switch 46a is pushed by the dock 38, and this limit The switch 46a is turned on. On the other hand, when the switch bar 36 is slid in the direction of compressing the right return spring 43 (to the right), the operator 48 of the other limit switch 46b is pushed and the limit switch 46b is turned on. Become. When one of these limit switches 46a and 46b is turned on, an execution command for starting / stopping the embroidery machine is issued.

When the switch bar 36 is slid, the tapered surface 38a of the dock 38 first comes into contact with the roller 49 of the actuator 48 of either of the limit switches 46a and 46b. Then, the roller 49 rides on the outer peripheral surface of the dock 38 while rolling along the tapered surface 38a (phantom line in FIG. 3), whereby either of the limit switches 46a and 46b is turned on. Therefore, the limit switch 4 accompanying the slide operation of the switch bar 36
The 6a and 46b are smoothly turned on and off.

A specific example of the sliding operation of the switch bar 36 and the switching of the operation of the embroidery machine associated therewith will be briefly described below. a. When the switch bar 36 is slid rightward and the hand is released while the embroidery machine is stopped, the embroidery machine is activated. At this time, if the switch bar 36 is held at that position without releasing the hand, inching of the operation is started, and if the hand is released, the normal operation is performed. b. When the switch bar 36 is slid leftward and the hand is released while the embroidery machine is stopped, frame back / frame forward for one stitch is performed. At this time, if the switch bar 36 is held at that position without releasing the hand, frame back / frame forward is performed in units of one stitch,
It is canceled when you release your hand. c. When the switch bar 36 is slid to the left while the embroidery machine is operating, the operation is stopped with or without releasing the hand.

The switch bodies 30 are respectively located below the projecting portions 12 of the table 10, and the operating portions 4 of the individual switch bars 36 are arranged.
0 is located facing the recessed portion 14. Therefore, the operator in front of the table 10 can slide any one of the switch bars 36 of the switch body 30 at either the overhanging portion 12 or the recessed portion 14 by simply extending either the left or right hand. And since the mode of operation is always the same, there is no confusion and there is no need to rely on vision.

Next, a second embodiment will be described with reference to FIGS. FIG. 5 is a perspective view showing one switch body 50 in the second embodiment, and FIG. 6 is a sectional view of the switch body 50 seen from below. In this switch body 50, a switch 66 (a pair of left and right limit switches 66a, 6a) is provided in an upper space of the switch bar 56 inside the box 52.
6b) is provided. That is, both limit switches 6
6a and 66b are fixed to the inner wall of the upper wall of the box 52 by screws or the like. With this arrangement, the size of the box 52 in the front-rear direction becomes more compact than that of the box 32 of the switch body 30 in the first embodiment. It should be noted that both limit switches 66a and 66b also have a structure in which the normally open contacts are switched on by pressing the respective actuators 68. At the tip of each actuator 68, there is a roller 69 that comes into contact with the dock 58, which will be described next.

Since the limit switches 66a and 66b are arranged as described above, a flat plate-shaped dock 58 is used, and a ring 59 formed integrally with the dock 58 is used.
Is fixed to approximately the middle portion of the switch bar 56. The dock 58 slidably contacts the inner surface of the front wall of the box 52 (FIG. 6), and slopes 58a are formed on both left and right end surfaces, respectively. On the axis of the switch bar 56, return springs 62 and 63 are provided between both end surfaces of the ring 59 and the inner surface of the box 52, respectively. These return springs 62, 63
Due to the elasticity of the switch bar 56, the dock 58 is held in a neutral state in which the dock 58 is located approximately in the middle of the limit switches 66a and 66b. In the switch bar 56,
Both ends of the box 52, which are exposed from both sides of the box 52, serve as the operation unit 60.

When the switch bar 56 in the neutral state is slid in the direction of compressing the return spring 62 located on the left side of FIG.
As a result, the actuator 68 of the limit switch 66a is pushed, and the limit switch 66a is turned on. On the other hand, the switch bar 56 has the return spring 63 on the right side.
When it is slid in the direction of compressing (rightward), the actuator 68 of the other limit switch 66b is pushed, and the limit switch 66b is turned on. When the switch bar 56 is slid, the sloped surface 58a of the dock 58 comes into contact with the roller 69 of the actuator 68 of either of the limit switches 66a and 66b. Then, the roller 69 is positioned on the flat surface of the dock 58 while rolling along the slope 58a, whereby the actuator 68 is pushed.

[Brief description of drawings]

FIG. 1 is a perspective view showing the appearance of the entire multi-head embroidery machine (sewing machine).

FIG. 2 is a perspective view showing one switch body in association with a protruding portion of a table.

FIG. 3 is an enlarged sectional view of the switch body as seen from below.

FIG. 4 is a sectional view taken along the line AA of FIG.

FIG. 5 is a perspective view showing one switch body according to the second embodiment.

FIG. 6 is a cross-sectional view of one switch body according to the second embodiment as seen from below.

FIG. 7 is a perspective view showing an example of a conventional embroidery machine (sewing machine).

[Explanation of symbols]

10 tables 12 Overhanging point 14 Recessed part 30,50 switch body 36,56 switch bar 46, 66 switch

   ─────────────────────────────────────────────────── ─── Continued front page    F term (reference) 3B150 AA15 AA18 CB04 CE22 CE23                       GA11 GA27 GE03 GE12 GE21                       LA82 LA84 LB02 NA67 NA71                       NC02

Claims (3)

[Claims] 1. An embroidery machine having protruding portions at a plurality of front end portions of a table, wherein a switch bar that can be slid on the lower portion of each protruding portion and a switch bar that is turned on and off by sliding operation of the switch bar. An embroidery machine provided with switch bodies each of which includes a switch for switching. 2. The embroidery machine according to claim 1, wherein
Between the respective overhanging portions in the width direction of the table, there is a recessed portion into which a worker's body can be inserted, and the operation portion of the switch bar faces the recessed portion, and An embroidery machine in which the sliding direction of the switch bar is almost the same. 3. The embroidery machine according to claim 1, wherein the switch body has a structure in which a switch bar is slidably inserted into a box having a switch built therein. An embroidery machine in which both ends of the switch bar located outside are operating parts.