JP3204807U - Mounting structure of control box for sewing machine - Google Patents

Abstract

A structure for attaching a control box for a sewing machine capable of attaching the control box to a sewing machine motor so that an operation unit faces front is provided. In a state where a sewing machine body 20 of a cylindrical sewing machine is fixed to the upper surface of a sewing machine base 101 and a sewing machine motor 30 is attached to the lower surface of the sewing machine base 101, the sewing machine motor 30 attached to the sewing machine base 101 is controlled. After inserting between the support pieces 413 of the support member 41 fixed to the box 40 and communicating with the insertion holes of the support pieces 413 of the support member 41 and the female screw holes of the lower side surfaces 30d of the sewing machine motor 30, the male screw member 415 Is screwed into the female screw hole of the sewing machine motor 30 through the insertion hole of the support piece 413 and fastened to fix the control box 40 with respect to the sewing machine motor 30 so that the operation portion 40a faces the front. Attach to. [Selection] Figure 2

Description

  The present invention relates to a mounting structure of a control box for a sewing machine in which a control box for controlling a sewing machine or a sewing machine motor is attached to the sewing machine motor.

Many kinds of sewing machines having the control box as described above have been proposed, and the thread wiping device for the sewing machine disclosed in Patent Document 1 is one of the apparatuses provided in such a sewing machine. .
The sewing machine provided with the yarn wiper of Patent Document 1 fixes the sewing machine to the upper surface of the sewing machine table with the front side where the operator is located as the front and the manual pulley located on the right side, and drives the sewing machine motor The pulley is attached to the lower surface of the sewing machine base so that it is located on the right side. In addition, a control box is attached to the lower surface of the sewing machine motor so that, for example, an operation unit on which a switch, a dial, a display unit, and the like are arranged faces forward.

  For example, when the sewing machine is fixed to the sewing machine base with the manual pulley positioned on the left side (see FIG. 9), the sewing machine motor is attached to the lower surface of the sewing machine base with the driving pulley positioned on the left side. The operation part of the control box attached to the sewing machine motor faces the back.

  In other words, when the control box is mounted so that the operation unit faces the front, for example, the insertion hole formed in the support member for fixing the motor for the sewing machine and the control box, and the female screw holes formed on both side surfaces of the sewing machine motor. Since displacement occurs, it is structurally difficult to attach the control box so that the operation unit faces the front with respect to the sewing machine motor that is attached so that the drive pulley is located on the left side.

Japanese Patent Laid-Open No. 7-144083

  An object of the present invention is to provide a structure for attaching a control box for a sewing machine that can attach the control box to a sewing machine motor so that an operation unit faces the front.

  This device comprises a sewing machine fixed to the upper surface of a sewing machine base, and a sewing machine motor attached to the lower surface of the sewing machine base, and mounting a control box for the sewing machine for attaching a control box to the lower surface of the sewing machine motor An operation portion for operating the control box is provided on an outer surface on one end side of the control box, and one side portion of the sewing machine table is provided at a facing portion where the sewing machine motor and the control box face each other. An attachment means is provided for attaching the control box to the sewing machine motor so that the operation unit faces the front side, with the side where the operator set to 1 is located in front.

  The above-described sewing machine can be constituted by, for example, an industrial sewing machine, a professional sewing machine, a household sewing machine, or the like. The sewing machine motor can be constituted by, for example, a servo motor, an electromotor, or the like. Further, the control box can be constituted by, for example, a control box or a control unit that controls the rotation speed, drive, and stop of the sewing machine motor, or controls the operation of the entire sewing machine.

According to this device, the control box can be attached to the sewing machine motor so that the operation portion faces the front.
Specifically, when changing the orientation of the control box attached to the lower surface of the sewing machine motor, the fixing of the sewing machine motor and the control box by the attaching means is released, and the control box is separated from the sewing machine motor. After this, with the front side where the operator set on one side of the sewing machine is located as the front, the direction of the control box is changed so that, for example, the operation unit on which switches, dials, display units, etc. are arranged is front-facing After that, the control box is mounted on the lower surface of the sewing machine motor, and the sewing machine motor and the control box are integrally fixed by the attaching means.

Thereby, for example, the manual pulley of the sewing machine fixed to the upper surface of the sewing machine table and the driving pulley of the sewing machine motor attached to the lower surface of the sewing machine machine are placed on either the right side or the left side when viewed from the front. Even if it is located, the control box can be attached to the sewing machine motor so that the operation unit faces the front.
As a result, for example, a switch, a dial or the like disposed in the operation unit of the control box can be easily operated by the operator's hand located on the front side of the sewing machine table.

Moreover, when the control box is attached so that the operation unit is facing the front, the connection unit for connecting various detectors, external devices, etc. provided on the part opposite to the operation unit is facing the back, The covered electric wire connected to the connection portion can be routed on the back side of the sewing machine base.
Thereby, during the sewing work by the sewing machine, the hands and feet of the operator located on the front side of the sewing machine base are not easily caught by the covered electric wire, and the sewing work can be prevented from being hindered.

  As an aspect of the present invention, the attachment means includes a support portion projecting toward the other portion provided in one of the opposed portions where the sewing machine motor and the control box face each other, and the support A fixing part that fixes the support part provided in the other part corresponding to the part, and a fixing member that fixes the support part and the fixing part to each other, and the support part and the fixing part Are arranged at a predetermined interval in the longitudinal direction of the sewing machine motor with an interval corresponding to the width in the short direction of the sewing machine motor and passing through the central portion in the short direction of the sewing machine motor. They can be arranged symmetrically with respect to the reference line.

  The above-mentioned support part can be constituted by, for example, a substantially L-shaped support member screwed to one part, or a projection or a convex part formed on one part. Further, the fixing member can be constituted by a screw member such as a screw or a bolt, for example.

According to this device, the control box can be securely attached to the sewing machine motor so that the operation portion faces the front.
Specifically, when changing the orientation of the control box attached to the lower surface of the sewing machine motor, release the fixing of the support part and the fixing part by the fixing member, and connect the sewing machine motor in the short direction of the sewing machine motor. A support portion that is extracted from one of the opposing portions where the motor for the sewing machine and the control box are opposed to each other is provided in the other portion while being extracted from between the support portions or the fixed portions arranged at intervals corresponding to the width. The control box is separated from the sewing machine motor.

  After changing the direction of the control box so that the front side where the worker is located is the front, the operation part is facing the front, the motor for the sewing machine is provided between the support part protruding from one part or the other part. While inserting between fixed parts, a support part and a fixed part are made to correspond mutually, and are fixed integrally with a fixing member.

  Thereby, even when the motor for the sewing machine is attached so that the drive pulley is located on either the right side or the left side with respect to the sewing machine base, when the control box is attached to the sewing machine motor, A support portion provided at one portion of the facing portion where the motor for the sewing machine and the control box face each other and a fixing portion provided at the other portion can be made to correspond to each other and fixed together by a fixing member.

As a result, for example, a switch, a dial, or the like disposed in the operation unit of the control box can be reliably operated by the operator's hand located on the front side of the sewing machine table.
In addition, when attaching the control box so that the operation unit faces the front, the labor and work of separating the motor for the sewing machine from the sewing machine base can be saved, so that workability when attaching the control box is improved.

  Further, as an aspect of the present invention, a portion for fixing the fixing portion in the plurality of supporting portions provided in the one portion is provided at the same height, and the supporting portion in the plurality of fixing portions provided in the other portion. Can be provided at the same height.

According to this device, the control box can be more reliably attached to the sewing machine motor such that the operation portion faces the front.
Specifically, even when the sewing machine motor is attached to the sewing machine base so that the drive pulley is located on either the right side or the left side, when the control box is attached to the sewing machine motor, The same height portion of the plurality of support portions provided in one portion of the facing portions where the motor for the sewing machine and the control box are opposed to each other and the same height portion of the plurality of fixing portions provided in the other portion are matched with each other. Can be made.

  As a result, it is difficult for positional deviation to occur in the portion that fixes the supporting portion provided in one portion and the fixing portion provided in the other portion, and the one supporting portion and the other fixing portion are caused to correspond to each other by the fixing member. Can be fixed.

  As a result, the position when the control box is attached to the sewing machine motor can be prevented from being displaced, and the control box can be attached more accurately to the sewing machine motor so that the operation unit faces frontward.

As an aspect of the present invention, the support portion can be formed at a height that regulates a facing portion where the sewing machine motor and the control box face each other at a predetermined interval.
According to this device, when the control box is attached to the sewing machine motor, it is possible to prevent the mutually facing portions from coming into contact with each other.

  Specifically, when the control box is attached to the sewing machine motor, the facing portion where the sewing machine motor and the control box are opposed to each other is restricted to a state separated by a predetermined interval by a plurality of support portions provided in one portion. .

  As a result, even if one part of the facing part where the motor for the sewing machine and the control box face each other protrudes toward the other part, the height of the protruding part protruding from the one part is the same as that of the sewing machine motor. When the height of the space secured between the opposing portions facing the control box is lower, it is possible to prevent them from coming into contact with each other.

Moreover, even if the sewing machine motor is mounted so that the drive pulley is located on either the right side or the left side with respect to the sewing machine base, when the control box is mounted on the sewing machine motor, It can prevent that the protrusion part which protruded to one part among the opposing parts of this is contact | abutted with respect to the other part.
Thereby, a control box can be reliably attached with respect to the motor for sewing machines.

  Further, as an aspect of the present invention, the support portion is constituted by a support piece of a support member fixed to the upper surface of the control box, and the fixing portions are formed on both side surfaces facing the short direction of the sewing machine motor. The attachment means is constituted by a male screw member that is screwed into female screw holes formed on both side surfaces of the sewing machine motor through insertion holes formed in a support piece of the support member. can do.

According to this device, the control box can be more reliably attached to the sewing machine motor without rattling so that the operation portion faces the front.
Specifically, the sewing machine motor is inserted between the support pieces of the support member fixed to the upper surface of the control box while the control box is held so that the operation portion faces the front. Thereafter, the male screw member is screwed into the female screw holes formed on both side surfaces of the sewing machine motor through the insertion holes of the support pieces of the support member.

Thereby, the support piece of the support member fixed to the upper surface of the control box can be fixed in a state of being in contact with or pressed against both side surfaces opposed to the short side direction of the sewing machine motor.
As a result, it is possible to reliably prevent the mounting position of the control box from being displaced in the longitudinal direction and the short side direction of the sewing machine motor, and rattling between the sewing machine motor and the control box. A sufficient structural strength to withstand the generated vibration can be ensured.

Further, as an aspect of the present invention, in a state where the female screw hole and the insertion hole are in communication with each other, a restricting portion that contacts the support piece can be formed on both side surfaces of the sewing machine motor.
The above-described restricting portion can be constituted by, for example, a convex restricting portion, a concave restricting portion, or the like.

According to this device, the operation box can be more accurately attached to the sewing machine motor so that the operation unit faces the front.
Specifically, the support pieces of the support member fixed to the control box are restricted by the restriction portions formed on both side surfaces of the sewing machine motor, and the female screw holes formed on both side surfaces of the sewing machine motor and the support piece of the support member are provided. The position is regulated so that the formed insertion holes communicate with each other.

  As a result, the position of the female screw holes formed on both side surfaces of the sewing machine motor and the insertion holes formed in the support piece of the support member are regulated so as to communicate with each other without being regulated by the operator's hand. It is possible to prevent the positional deviation between the female screw hole and the insertion hole.

  As a result, the male screw member can be accurately screwed into the female screw holes formed on both side surfaces of the sewing machine motor through the insertion holes formed in the support piece of the support member, and the operation box can be used for the sewing machine. The operation unit can be more accurately attached to the motor so that the operation unit faces the front.

  Further, as an aspect of the present invention, the attachment means includes an upper member provided in one of the opposing portions where the motor for sewing machine and the control box are opposed, a lower member provided in the other portion, A support shaft that supports the members inserted through the rotation centers of the members so as to be relatively rotatable, and a member that rotates and fixes the other member provided on one of the members to a predetermined rotation angle. It can be composed of fixing means.

  The above-described member fixing means may be, for example, a screw member or a pin member attached to one of the upper member and the lower member and an outer peripheral edge of the other member that contacts the screw member or the pin member, or an outer member. It can be comprised by the recessed part, hole, etc. which engage the screw member or pin member formed in the peripheral part.

According to this device, it is possible to change the direction of the operation unit so as to face the front without separating the control box from the sewing machine motor.
Specifically, the rotation fixing of the upper member and the lower member by the member fixing means is released, and the lower member provided in the control box is inserted into the rotation center between the members with respect to the upper member provided in the sewing machine motor. Rotate relative to the support shaft around the axis. With the front side where the operator is located as the front, the control box is rotated to an angle at which the operation unit faces the front, and then the lower member is fixed to the upper member in a non-rotatable manner by the member fixing means.

As a result, for example, a switch, a dial, or the like disposed in the operation unit of the control box can be reliably operated by the operator's hand located on the front side of the sewing machine table.
Moreover, when changing the orientation of the control box, the orientation of the control box is changed to save the trouble and work of separating the control box from the sewing machine motor or separating the sewing machine motor from the sewing machine base. Workability is improved.

  Furthermore, in order to rotate the control box around the axis, in addition to the angle at which the operation unit is faced forward, the angle can be changed to the angle to the right or the left, or the angle to the oblique front or the left oblique front. Is possible.

  According to the present invention, it is possible to provide a structure for attaching the control box for the sewing machine that can attach the control box to the sewing machine motor so that the operation portion faces the front.

1 is a front view of a cylindrical sewing machine to which a control box according to a first embodiment is attached. The enlarged front view of the part which attached the control box to the motor for sewing machines. The enlarged rear view of the part which attached the control box to the motor for sewing machines. The enlarged left view of the part which attached the control box to the motor for sewing machines. The enlarged front view of the state which separated the control box from the motor for sewing machines. Explanatory drawing of the operation part and connection part of a control box. The top view of the control box which has arrange | positioned the supporting member. The perspective view which shows the external appearance shape of a supporting member. The front view of the state arrange | positioned on the left side of the motor for a sewing machine and a control box. The enlarged front view of the state which separated the control box from the motor for sewing machines. The enlarged front view of the state which reversed the control box shown in FIG. 9 in the front-back reverse direction. The enlarged front view of the part which attached the control box shown in FIG. 11 to the motor for sewing machines. Explanatory drawing of the attachment structure of the control box of Example 2. FIG. The enlarged front view of the part which horizontally rotated the control box of Example 3 so that the operation part may become front direction. The enlarged front view of the part which horizontally rotated the control box of FIG. 14 so that a connection part may become front direction.

An embodiment of the present invention will be described in detail with reference to the drawings.
Example 1
1 is a front view of a cylindrical sewing machine 10 to which a control box 40 according to the first embodiment is attached. FIG. 2 is an enlarged front view of a portion where the control box 40 is attached to a sewing machine motor 30. FIG. 4 is an enlarged rear view of the portion attached to the motor 30, FIG. 4 is an enlarged left side view of the portion where the control box 40 is attached to the sewing machine motor 30, and FIG. 5 is an enlarged front view of the state in which the control box 40 is separated from the sewing machine motor 30. FIG.

  FIG. 6 is an explanatory diagram of the operation unit 40a and the connection unit 40b of the control box 40. Specifically, FIG. 6A is a front view showing the operation unit 40a of the control box 40, and FIG. It is a rear view which shows the connection part 40b.

  FIG. 7 is a plan view of the control box 40 in which the support member 41 is disposed. Specifically, FIG. 7A is a plan view of the control box 40 in which the rotation center P is set closer to the operation unit 40a, and FIG. FIG. 6 is a plan view of the control box 40 in which the rotation center P is set at the center in the short direction S.

  8 is a perspective view showing the external shape of the support members 41 and 42, FIG. 9 is a front view showing a state in which the control box 40 is separated from the sewing machine motor 30, and FIG. 10 is a view of the control box 40 with the connecting portion 40b facing the front. FIG. 11 is an enlarged front view of a portion where the control box 40 is attached to the sewing machine motor 30.

  In addition, the front in the following description is a side corresponding to the near side where an operator (not shown) is located. The longitudinal direction L is a direction that coincides with the direction in which the arm portion 201 of the sewing machine body 20 is extended, and the short direction S is a direction that is orthogonal to the longitudinal direction L in the plane direction.

  The mounting structure of the control box 40 according to the first embodiment is such that the sewing machine main body 20 of the cylindrical sewing machine 10 is positioned so that the manual pulley 204 is positioned on the right side. And the sewing machine motor 30 is attached to the lower surface of one end of the sewing machine base 101 (the lower surface on the right side shown in FIG. 1) behind the sewing machine body 20 so that the drive pulley 302 is positioned on the right side. This is a structure for attaching the box 40 to the sewing machine motor 30 so that the operation portion 40a faces front (see FIG. 1).

  The sewing machine body 20 includes an arm portion 201 extending toward the other end side in the longitudinal direction L (left side shown in FIG. 1), a bed portion 21 in which a base portion 202 of the arm portion 201 is fixed to the upper surface, A cradle 22 having a base 211 fixed to the upper surface and a cylindrical work table 212 extending from the base 211 toward the other end side in the longitudinal direction L substantially in parallel with the arm 201, 22 is fixed to the upper surface of one end side of the sewing machine base 101 (see FIG. 1).

  A sewing needle 201a and a presser foot 201b are attached to the lower end of the arm portion 201 on the distal end side. A manual pulley 204 that is rotatable by an operator's hand is fixed to the sewing machine shaft 203 that protrudes toward the base portion 202 side of the arm portion 201.

  The sewing machine motor 30 is constituted by a substantially rectangular servo motor in plan view, and an aluminum die-cast mounting base so that the motor shaft 301 of the sewing machine motor 30 is substantially parallel to the sewing machine shaft 203 of the sewing machine body 20. 31, the sewing machine body 20 is attached to the lower surface of one end side of the sewing machine base 101 from the position where the sewing machine body 20 is fixed (see FIGS. 1 to 4).

  A driving pulley 302 for transmitting power to the manual pulley 203 of the sewing machine body 20 is fixed to the motor shaft 301 protruding to one end side of the sewing machine motor 30. A belt 303 having a substantially V-shaped cross section is stretched between the manual pulley 203 and the drive pulley 302 via an insertion hole 102 opened on the upper surface on one end side of the sewing machine base 101.

  On the lower side surfaces 30d of the sewing machine motor 30, female screw holes 306 for screwing a male screw member 415 for fixing a support member 41 to be described later are provided at four positions set at the same height with respect to the lower side surfaces 30d. It is formed at the mounting position. The female screw holes 306 formed on both side surfaces 30d of the sewing machine motor 30 are arranged at a predetermined interval in the longitudinal direction L of the sewing machine motor 30 (see FIG. 5).

  The control box 40 is configured by a box-type controller including a CPU, ROM, and RAM (not shown) that controls the rotational speed, drive, and stop of the sewing machine motor 30. An operation portion 40a is provided on the outer surface on one end side in the short direction S of the control box 40, and a connection portion 40b is provided on the outer surface on the other end side in the short direction S (the outer surface opposite to the operation portion 40a). .

  The upper surface 40c of the control box 40 is detachably attached to the lower surface 30c of the sewing machine motor 30 via a substantially L-shaped support member 41 so as to be substantially parallel to the lower surface 30c of the sewing machine motor 30. (See FIGS. 1 to 4).

  On the upper surface 40 c of the control box 40, female screw holes 406 for screwing male screw members 415 for fixing a support member 41 to be described later, and four female screw holes 306 formed on both lower side surfaces 30 d of the sewing machine motor 30 are provided. They are arranged correspondingly, and are formed at four attachment positions set on a diagonal line passing through the rotation center P with the rotation center P near the operation portion 40a set on the control surface 40c as the center (FIGS. 5 and 5). 7 (a)).

  The female screw holes 406 are arranged symmetrically with respect to a reference line K passing through the center of the short direction S of the sewing machine motor 30 indicated by a two-dot chain line in FIG. 7A, and both side surfaces of the sewing machine motor 30. It arrange | positions in the longitudinal direction L at the space | interval corresponding to the female screw hole 306 formed in 30d.

  The operation unit 40a of the control box 40 includes a switch 401 for setting the sewing operation of the sewing machine body 20, an adjustment dial 402 for adjusting the sewing operation, a display unit 403 for displaying the set numerical values, and others. (Not shown) are arranged (see FIG. 6A).

  The control box 40 and the connecting portion 40b include a needle position detector (not shown) for detecting the position of the sewing needle 201a, a rotation detector (not shown) for detecting the rotation of the motor shaft 301, or other external parts (not shown). A connector 404 for connecting devices is arranged (see FIG. 6B).

  The mounting base 31 includes a fixing plate 310 fixed to one side lower surface in the longitudinal direction L (the right lower surface shown in FIG. 1) of the sewing machine base 101, and a lower end on the one end side in the lateral direction S of the fixing plate 310 (left side shown in FIG. 4). ) Formed on the lower end of the other end side in the short direction S of the fixing plate 310 (on the right side in FIG. 4), and an adjustment tool 313 attached to the bearing portion 312. (See FIGS. 2 and 4).

  The support plate 311 is formed by vertically extending a lower portion on one end side of the fixed plate 310 downward. The lower end of the support plate 311 is connected to the upper end of a shaft support portion 304 formed at the upper end on the one end side in the short direction S of the sewing machine motor 30 via a connecting shaft 311a.

The adjustment tool 313 includes an inverted L-shaped connecting shaft 314 whose upper end is pivotally supported with respect to the bearing portion 312 of the fixed plate 310, and a pair of nuts 315 screwed to the lower end of the connecting shaft 314. ing.
On the upper end side of the connecting shaft 314, a substantially L-shaped shaft portion 314a is formed that is bent in a direction orthogonal to the entire length of the connecting shaft 314. On the lower end side of the connecting shaft 314, a male screw portion 314b into which a nut 315 is screwed is formed (see FIGS. 2 and 4).

  The shaft portion 314 a of the connecting shaft 314 is inserted through the bearing portion 312 in a direction substantially parallel to the longitudinal direction L. The male screw portion 314b of the connecting shaft 314 is inserted in the vertical direction with respect to the shaft insertion portion 305 formed at the front end on the other end side in the short direction S in the sewing machine motor 30. A pair of nuts 315 are attached to the male screw portion 314b inserted through the shaft insertion portion 305 so that the shaft insertion portion 305 is sandwiched.

  The support member 41 includes a member main body 411 formed by bending a metal plate into a substantially L shape, a fixed piece 412 formed on one end side of the member main body 411, and a support piece 413 formed on the other end side of the member main body 411. The male screw member 415 formed at the ends of the fixed piece 412 and the support piece 413 is configured with an insertion hole 414 through which the male screw member 415 can be inserted (see FIGS. 7A and 8A).

  The substantially L-shaped member body 411 is formed by bending the other support piece 413 at a substantially right angle with respect to one fixed piece 412. The height T of the support piece 413 is formed such that the lower surface 30c of the sewing machine motor 30 and the upper surface 40c of the control box 40 are regulated to be spaced apart from each other by a predetermined interval.

The insertion hole 414 penetrates in the thickness direction with respect to the ends of the fixed piece 412 and the support piece 413 and has a hole diameter through which the male screw member 415 can be inserted.
The insertion holes 414 of the support piece 413 are formed at the upper end portion and the intermediate portion of the support piece 413, respectively, and are formed at a predetermined interval in the vertical direction.
Further, the insertion hole 414 of the support piece 413 is formed to have the same height when the fixing piece 412 of the support member 41 is fixed to the upper surface 40c of the control box 40 (see FIG. 8A).

  The above-mentioned support member 41 is arranged symmetrically with respect to a reference line K passing through the central portion in the short direction S of the sewing machine motor 30 with respect to the four attachment positions set on the upper surface 40c of the control box 40. (See FIG. 7A).

  That is, the support member 41 is arranged so that the ends of the fixed pieces 412 face each other in the short direction S with respect to the upper surface 40 c of the control box 40, and the support pieces 413 are short of the sewing machine motor 30. It arrange | positions so that it may be separated by the space | interval corresponding to the width | variety of the direction S. FIG.

  Thereafter, the male screw member 415 is screwed into the female screw hole 406 formed in the upper surface 40c of the control box 40 through the insertion hole 414 of the fixing piece 412, and the four positions set on the upper surface 40c of the control box 40 are attached. It is fixed in position.

A method for attaching the above-described control box 40 to the sewing machine motor 30 so that the operation unit 40a faces the front will be described.
9 is a front view showing a state where the sewing machine motor 30 and the control box 40 are arranged on the left side of the sewing machine base 101, FIG. 10 is an enlarged front view showing a state where the control box 40 is separated from the sewing machine motor 30, and FIG. FIG. 12 is an enlarged front view of a portion where the control box shown in FIG. 11 is attached to the sewing machine motor. .

  As shown in FIG. 1, the general cylindrical sewing machine 10 fixes the sewing machine body 20 to the sewing machine base 101 so that the manual pulley 204 is positioned on the right side, and the sewing machine motor 30 is positioned on the right side. In this manner, the control box 40 is attached to the sewing machine motor 30 so that the operation unit 40a faces the front (see FIG. 1).

  However, as shown in FIG. 9, when the sewing machine main body 20 is fixed to the sewing machine base 101 with the manual pulley 204 positioned on the left side, the orientation of the sewing machine motor 30 to which the control unit 40 shown in FIG. When reversed and attached to the sewing machine base 101 so that the drive pulley 302 is positioned on the left side, the operation unit 40a of the control box 40 is directed to the back and the connection unit 40b is directed to the front.

  In this case, since it becomes difficult to operate the switch 401 and the adjustment dial 402 arranged on the operation unit 40a of the control box 40 with the hands of the operator located on the front side of the sewing machine base 101, the direction of the control box 40 is changed. It is necessary to change the operation unit 40a so that it faces the front.

Next, a method for changing the orientation of the control box 40 will be described.
First, the male screw member 415 screwed into the female screw hole 306 of the sewing machine motor 30 is rotated in a direction opposite to the screwing direction by a rotating operation tool (not shown), and the support member 41 fixed to the control box 40 is fixed. The control box 40 is removed from the insertion hole 414 of the support piece 413, and the fixing of the control box 40 to the sewing machine motor 30 is released.

  While lowering the control box 40, the lower part of the sewing machine motor 30 attached to the sewing machine base 101 is extracted from between the support pieces 413 of the support member 41 fixed to the control box 40, and the control box 40 is separated from the sewing machine motor 30. (See FIG. 10).

  The control box 40 is horizontally rotated around the rotation center P set on the upper surface 40c of the control box 40 so that the connecting portion 40b faces the front, and then the control box 40 is lifted upward while the control box 40 is lifted upward. The lower part of the attached sewing machine motor 30 is inserted between the support pieces 413 of the support member 41 fixed to the control box 40 at an interval corresponding to the width in the short direction S of the sewing machine motor 30 (see FIG. 11). .

  After the insertion hole 414 of the support piece 413 of the support member 41 communicates with the female screw hole 306 of the lower side surface 30d of the sewing machine motor 30, the male screw member 415 is inserted through the insertion hole 414 of the support piece 413 of the support member 41. Then, they are screwed into the female screw holes 306 on the lower side surfaces 30d of the sewing machine motor 30, respectively.

  The male screw member 415 is rotated in the screwing direction by a rotating operation tool (not shown), and the support pieces 413 of the support member 41 are supported while being in contact with or pressed against the lower side surfaces 30 of the sewing machine motor 30. The support piece 413 of the member 41 is fastened and fixed to the lower side surfaces 30d of the sewing machine motor 30.

  As a result, even if the sewing machine motor 30 is attached to the sewing machine base 101 so that the drive pulley 302 is positioned on the left side, the control box 40 can be connected to the sewing machine motor 30 with the operation unit 40a facing forward. It can attach so that it may become (refer FIG. 12).

  As a result, the switch 401 and the adjustment dial 402 disposed on the operation unit 40 a of the control box 40 can be accurately and reliably operated by the operator's hand located on the front side of the sewing machine base 101.

In addition, when the control box 40 is attached so that the operation portion 40a faces the front, the connection portion 40b opposite to the operation portion 40a faces the back, so that the covered electric wire (not shown) connected to the connector 404 of the connection portion 40b Can be routed on the back side of the sewing machine base 101.
Thereby, during the sewing work by the cylindrical sewing machine 10, it is possible to prevent the operator's hands and feet located on the front side of the sewing machine base 101 from being caught by the covered electric wire and preventing the sewing work from being hindered.

  Further, when attaching the control box 40 so that the operation unit 40a faces the front, the labor and work of separating the sewing machine motor 30 from the sewing machine base 101 can be saved, so that the workability when attaching the control box 40 is improved. improves.

  Furthermore, the control box 40 is attached to the sewing machine motor 30 even if the sewing machine motor 30 is attached to the sewing machine base 101 so that the drive pulley 302 is positioned on either the right side or the left side. In this case, the female screw holes 306 provided in the lower side surfaces 30d of the sewing machine motor 30 and the insertion holes 414 of the support pieces 413 of the support member 41 fixed to the control box 40 can be made to coincide with each other.

  As a result, the insertion hole 414 of the support piece 413 of the support member 41 fixed to the control box 40 and the female screw hole 306 provided in the lower both side surfaces 30d of the sewing machine motor 30 are unlikely to be displaced. The box 40 can be securely fixed to the sewing machine motor 30.

  Therefore, it is possible to reliably prevent the position when the control box 40 is attached to the sewing machine motor 30 from being displaced in the longitudinal direction L and the short direction S, and to operate the control box 40 with respect to the sewing machine motor 30. It can be attached more accurately so that 40a faces the front.

  Furthermore, the lower surface 30c of the sewing machine motor 30 and the upper surface 40c of the control box 40 are restricted by the support pieces 413 of the support member 41 so as to be spaced apart at a predetermined interval. A space can be secured between the surface facing the upper surface 40c.

  That is, even if one portion of the facing portions where the sewing machine motor 30 and the control box 40 face each other protrudes toward the other portion, the height of the protruding portion protruding from one portion is the sewing motor. In the case where the lower surface 30c of the control unit 30 and the upper surface 40c of the control box 40 are lower than the height of the space secured between the opposing parts, it is possible to prevent them from coming into contact with each other.

Furthermore, the control box 40 is attached to the sewing machine motor 30 even if the sewing machine motor 30 is attached to the sewing machine base 101 so that the drive pulley 302 is positioned on either the right side or the left side. In this case, it is possible to prevent the protruding portion protruding from one portion of the mutually facing portions from coming into contact with the other portion.
As a result, the control box 40 can be securely attached to the sewing machine motor 30 so that the operation portion 40a faces the front.

  Furthermore, the sewing machine motor 30 is inserted between the support pieces 413 of the support member 41 fixed to the upper surface 40 c of the control box 40, so that the support pieces 413 of the support member 41 are placed on the lower side surfaces 30 of the sewing machine motor 30. It fixes with the external thread member 415 with contact | abutting or pressing.

  Accordingly, the control box 40 can be securely attached to the sewing machine motor 30 so that the operation portion 40a faces the front, and the attachment position of the control box 40 is set to the longitudinal direction L and the short side of the sewing machine motor 30. It is possible to reliably prevent displacement in the direction S.

  In addition, it is possible to prevent backlash between the sewing machine motor 30 and the control box 40 and to more firmly fix the sewing machine motor 30 and the control box 40, so that it can withstand vibrations generated during sewing. Sufficient structural strength can be ensured.

  Hereinafter, other examples of the mounting structure of the control box 40 will be described. In this description, parts that are the same as or equivalent to those in the above configuration are denoted by the same reference numerals, and detailed description thereof is omitted.

In the first embodiment described above, the example in which the rotation center P is set closer to the operation unit 40a of the control box 40 has been described. However, the rotation center P is set in the short direction S of the control box 40 as illustrated in FIG. Another example set in the center will be described.
FIG. 7B is a plan view of the control box 40 in which the rotation center P is set at the center in the short direction S. FIG.

  Specifically, the rotation center P is set at the center portion of the upper surface 40c of the control box 40, and the reference line K passing through the center portion in the short direction S of the motor 30 for the sewing machine indicated by the two-dot chain line in the drawing. Are arranged symmetrically with reference to (see FIG. 7B).

  That is, since the distance from the rotation center P to the operation part 40a and the distance from the rotation center P to the connection part 40b are substantially the same, the control box 40 is centered on the rotation center P set at the center of the upper surface 40c. As described above, when the operation unit 40a and the connection unit 40b are horizontally rotated so that one of the operation unit 40a and the connection unit 40b faces the front, either one of the operation unit 40a or the connection unit 40b or a part other than the units 40a and 40b is controlled. It is possible to prevent the box 40 from protruding greatly outside the maximum turning radius.

  As a result, the orientation of the control box 40 with respect to the sewing machine motor 30 is well-balanced so that one of the operation unit 40a and the connection unit 40b faces the front, with the rotation center P set at the center of the upper surface 40c as the center. Since the direction can be changed, the effects and effects added to the first embodiment can be achieved.

(Example 2)
In the first embodiment, the attachment structure in which the lower part of the sewing machine motor 30 is inserted between the support pieces 413 of the support member 41 fixed to the upper surface 40c of the control box 40 has been described. However, in the second embodiment, FIG. As shown in b), a mounting structure in which the support piece 413 of the support member 41 fixed to the upper surface 40c of the control box 40 abuts on the convex regulating portions 307 formed on the lower side surfaces 30d of the sewing machine motor 30; A mounting structure to be inserted into the concave restricting portion 308 formed on both lower side surfaces 30d of the sewing machine motor 30 will be described.

  FIG. 13 is an explanatory diagram of the mounting structure of the control box 40 according to the second embodiment. Specifically, FIG. 13A is an enlarged view of the mounting structure in which the convex regulating portion 307 is formed on the lower side surface 30d of the sewing machine motor 30. FIG. 13B is an enlarged perspective view of a mounting structure in which a concave regulating portion 308 is formed on the lower side surface 30d of the sewing machine motor 30. FIG.

  In the mounting structure of the second embodiment, a convex regulating portion 307 capable of contacting the support piece 413 of the support member 41 is formed above the female screw hole 306 formed in the lower side surfaces 30d of the sewing machine motor 30. . The restricting portion 307 is sized and shaped to abut on the upper end of the support piece 413 in a state where the female screw hole 306 of the sewing machine motor 30 and the insertion hole 414 of the support piece 413 of the support member 41 communicate with each other. (See FIG. 13A).

Specifically, when the control box 40 is attached to the lower surface 30 c of the sewing machine motor 30, the lower part of the sewing machine motor 30 is inserted between the support pieces 413 of the support member 41 fixed to the upper surface 40 c of the control box 40.
When the insertion hole 414 of the support piece 413 of the support member 41 is inserted to a position where it is communicated with the female screw hole 306 of the sewing machine motor 30, the support piece 413 of the support member 41 is formed on the lower side surfaces 30d of the sewing machine motor 30. It abuts on the formed restricting portion 307 (see FIG. 13A).

  Accordingly, the female screw hole 306 formed in the lower side surfaces 30d of the sewing machine motor 30 and the support piece 413 of the support member 41 fixed to the upper surface 40c of the control box 40 can be inserted without being restricted by the operator's hand. Since the position of the hole 414 can be regulated so as to communicate with each other, it is possible to prevent the positional deviation between the female screw hole 306 and the insertion hole 414.

  As a result, the male screw member 415 can be more accurately screwed into the female screw holes 306 formed on both side surfaces of the sewing machine motor 30 through the insertion holes 414 formed in the support piece 413 of the support member 41. At the same time, the operation box 40 can be more accurately attached to the sewing machine motor 30 such that the operation portion 40a faces the front.

  As another mounting structure, a concave regulating portion 308 into which the support piece 413 of the support member 41 can be inserted is formed from the lower side to the upper side along the side surface with respect to the lower side surfaces 30d of the sewing machine motor 30. doing. A female screw hole 306 into which the male screw member 415 is screwed is formed in the central plane portion of the restricting portion 308 (see FIG. 13B).

  In the state where the female screw hole 306 of the sewing machine motor 30 and the insertion hole 414 of the support piece 413 of the support member 41 are in communication with each other, the restricting portion 308 contacts the upper end of the support piece 413 with the upper inner wall of the restricting portion 308. The inner walls on both sides of the restricting portion 308 are formed in a size and shape so as to be in contact with both end portions of the support piece 413, and are formed in a groove depth corresponding to the thickness of the support piece 413.

  Specifically, when the lower part of the sewing machine motor 30 is inserted between the support pieces 413 of the support member 41 fixed to the upper surface 40 c of the control box 40, the support pieces 413 of the support member 41 are placed on both sides of the lower part of the sewing machine motor 30. It inserts toward the upper part from the downward direction with respect to the control part 308 formed in the surface 30d.

  When the support piece 413 of the support member 41 is inserted to a position where the insertion hole 414 of the support piece 413 communicates with the female screw hole 306 of the sewing machine motor 30, the upper end of the support piece 413 is the upper inner wall of the restricting portion 308. And both end portions of the support piece 413 are in contact with both inner walls of the restricting portion 308 (see FIG. 13B).

  Accordingly, the female screw hole 306 formed in the lower side surfaces 30d of the sewing machine motor 30 and the support piece 413 of the support member 41 fixed to the upper surface 40c of the control box 40 can be inserted without being restricted by the operator's hand. Since the position of the three directions can be regulated so that the holes 414 communicate with each other, it is possible to more reliably prevent the positional deviation between the female screw hole 306 and the insertion hole 414.

As a result, the male screw member 415 can be more accurately screwed into the female screw holes 306 formed on both side surfaces of the sewing machine motor 30 through the insertion holes 414 formed in the support piece 413 of the support member 41. At the same time, the operation box 40 can be accurately attached to the sewing machine motor 30 so that the operation portion 40a faces the front.
In addition, since the three directions of the support piece 413 of the support member 41 fixed to the control box 40 are restricted, it is possible to prevent rattling between the sewing machine motor 30 and the control box 40.

  Furthermore, the female screw hole 306 formed in the lower side surfaces 30d of the sewing machine motor 30 and the insertion hole 414 of the support piece 413 of the support member 41 fixed to the upper surface 40c of the control box 40 are communicated with each other by the operator's hand. Since it is not necessary to align with the state, workability when attaching the control box 40 to the sewing machine motor 30 or changing the direction of the control box 40 can be further improved.

(Example 3)
In the first embodiment, the structure in which the control box 40 is attached to the sewing machine motor 30 using the support member 41 and the male screw member 415 has been described. However, in the third embodiment, as illustrated in FIGS. Will be described with respect to a structure in which the machine is attached to the lower surface 30c of the sewing machine motor 30 so as to be horizontally rotatable.

  14 is an enlarged front view of a portion obtained by horizontally rotating the control box 40 of the third embodiment so that the operation unit 40a faces the front. FIG. 15 shows the control box 40 of FIG. 14 with the connection portion 40b facing the front. It is an enlarged front view of the part rotated horizontally.

  The attachment structure of the third embodiment is inserted through the upper member 50 fixed to the lower surface 30c of the sewing machine motor 30, the lower member 51 fixed to the upper surface 40c of the control box 40, and the rotation center P between the members 50 and 51. The support shaft 52 and the screw member 53 that rotates and fixes the members 50 and 51 to a predetermined rotation angle are configured (see FIG. 14).

  The support shaft 52 supports the members 50 and 51 around the rotation center P so as to be relatively rotatable about the axis. The screw member 53 is attached to the outer peripheral edge of the upper member 50 so as to be rotatable in a direction facing the outer peripheral edge of the lower member 51.

  Specifically, the rotation fixing of the upper member 50 and the lower member 51 by the screw member 53 is released, and the lower member 51 fixed to the control box 40 is supported by the upper member 50 fixed to the sewing machine motor 30. The shaft 52 is rotated around the shaft about the shaft 52.

  The front side where an operator (not shown) is located is the front, and the control box 40 is rotated to an angle at which the operation unit 40a faces the front, and then the tip of the screw member 53 is formed on the outer peripheral edge of the lower member 51. The lower member 51 is attached to the upper member 50 by abutting in a radial direction with respect to the abutting portion not to be engaged or by engaging with a recess or a hole (not shown) formed in the outer peripheral edge portion of the lower member 51. On the other hand, it is fixed so as not to rotate (see FIGS. 14 and 15).

  As a result, without changing the control box 40 from the sewing machine motor 30, it is possible to change the direction of the operation unit 40a so that the operation unit 40a faces the front. The operator's hand located on the front side of the table 101 can be reliably operated.

  In addition, when changing the direction of the control box 40, the control box 40 can be separated from the sewing machine motor 30, or the time and labor of separating the sewing machine motor 30 from the sewing machine base 101 can be saved. The workability when changing the orientation of 40 is improved.

  Further, since the control box 40 is rotated around the support shaft 52 around the axis, the operation unit 40a is angled to the right or left, or the right diagonal front or left diagonal front, in addition to the angle at which the operation unit 40a is front facing. Since it is also possible to change the angle that becomes the direction, it is possible to achieve the actions and effects added to the first embodiment.

In the correspondence between the configuration of this device and the above embodiment,
The sewing machine of this invention corresponds to the tubular sewing machine 10 of the embodiment,
Similarly,
The attachment means corresponds to the support member 41 and the male screw member 415, the upper member 50, the lower member 51, and the support shaft 52,
The support portion corresponds to the support pieces 413 and 423,
The fixing portion corresponds to the female screw hole 406,
The fixing member corresponds to the male screw member 415,
The member fixing means corresponds to the screw member 53,
The present invention is not limited to the configuration of the above-described embodiment, but can be applied based on the technical idea shown in the claims, and many embodiments can be obtained.

  In the first embodiment, the mounting structure using the substantially L-shaped support member 41 in the side view has been described. For example, as illustrated in FIG. 8B, the support member 42 formed in a substantially U shape is used. The control box 40 may be attached to the sewing machine motor 30.

  The support member 42 is formed by bending the fixing piece 422 of the member main body 421 formed to a length corresponding to the width of the sewing machine motor 30 in the short direction S, and bending both ends of the fixing piece 422 upward at a substantially right angle. And the insertion holes 424 formed at both ends of the fixed piece 422 and the upper end of the support piece 423.

By attaching the control box 40 to the sewing machine motor 30 using the support member 42 described above, the functions and effects added to the first embodiment can be achieved.
In addition, since the number of assembling steps and the number of metal fittings when attaching to the control box 40 can be reduced as compared with the support member 41 of the first embodiment, the workability when attaching the control box 40 to the sewing machine motor 30 is further improved. be able to.
Further, although the support member 41 is fixed to the upper surface 40 c of the control box 40, for example, the support member 41 may be fixed to the lower both side surfaces 30 d of the sewing machine motor 30 in advance.

  Furthermore, the attachment structure of the sewing machine control box according to the present invention is not limited to the sewing machine base 101 of the first embodiment, and when the sewing machine motor 30 and the control box 40 are attached to a small sewing machine not shown which is shorter than the sewing machine base 101. Also effective.

L ... Longitudinal direction S ... Short direction 10 ... Cylindrical sewing machine 101 ... Sewing machine base 20 ... Sewing machine body 204 ... Manual pulley 30 ... Motor for sewing machine 302 ... Drive pulley 306 ... Female screw hole 31 ... Mounting base 40 ... Control box 40a ... Operation Portion 40b ... Connection portion 406 ... Female screw hole 41, 42 ... Support member 411, 421 ... Member main body 412, 422 ... Fixed piece 413, 423 ... Support piece 414 ... Insertion hole 415 ... Male screw member 50 ... Upper member 51 ... Lower member 52 ... Support shaft 53 ... Screw member

Claims (7)

A sewing machine control box mounting structure comprising a sewing machine fixed to the upper surface of the sewing machine table and a sewing machine motor mounted on the lower surface of the sewing machine table, and a control box attached to the lower surface of the sewing machine motor. ,
On the outer surface of one end side of the control box,
An operation unit for operating the control box is provided,
In the facing portion where the sewing machine motor and the control box face each other,
An attachment means is provided for attaching the control box to the sewing machine motor so that the operation portion faces the front side, with the side where the operator set on one side of the sewing machine is located as the front side. Mounting structure of control box for sewing machine. The attachment means comprises:
A support portion projecting toward the other portion provided in any one of the facing portions where the motor for sewing machine and the control box face each other;
A fixing part for fixing the support part provided in the other part corresponding to the support part;
It is composed of a fixing member that fixes the support part and the fixing part to each other,
The support part and the fixing part are
A plurality of the motors for the sewing machine are arranged at predetermined intervals in the longitudinal direction of the sewing machine motor, with a distance corresponding to the width in the short direction of the sewing machine motor, and a reference passing through the central part of the sewing machine motor in the lateral direction. The mounting structure of the control box for a sewing machine according to claim 1, which is arranged symmetrically with respect to the line. A portion for fixing the fixing portion in the plurality of support portions provided in the one portion is provided at the same height,
The attachment structure of the control box for sewing machines of Claim 2 with which the part which fixes the said support part in the said some fixing part provided in the said other part was provided in the same height. The support portion is
The attachment structure of the control box for sewing machines of Claim 2 or 3 formed in the height which controls the opposing part which the said motor for sewing machines and the said control box oppose to the state spaced apart by predetermined spacing. The support portion is
It is composed of a support piece of a support member fixed to the upper surface of the control box,
The fixing part is
It is composed of female screw holes formed on both side surfaces facing the short direction of the sewing machine motor,
The fixing member is
The male screw member according to any one of claims 2 to 4, wherein the male screw member is screwed into female screw holes formed on both side surfaces of the sewing machine motor through insertion holes formed in a support piece of the support member. The mounting structure of the control box for the sewing machine described in 1. In a state where the female screw hole and the insertion hole communicate with each other,
6. The structure for attaching a control box for a sewing machine according to claim 5, wherein the restricting portion that contacts the support piece is formed on both side surfaces of the motor for the sewing machine. The attachment means comprises:
An upper member provided at one of the opposing portions of the motor for sewing machine and the control box, and a lower member provided at the other portion;
A support shaft that supports the members inserted through the rotation centers of the members in a relatively rotatable manner;
The attachment structure of the control box for sewing machines of Claim 1 comprised by the member fixing means which rotates and fixes the other member provided in any one member among the said members to a predetermined rotation angle.

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