TWI479062B - The control box of the sewing machine - Google Patents

Description

Sewing machine control box Technical field

The present invention relates to a control box for a sewing machine.

Background technique

As shown in Fig. 9, the sewing machine 100 is provided with electronic components such as a plurality of actuators or sensors, and these components are controlled by a control device housed in the control box. Each of the actuators, electronic components, and the like is connected to the control device by a cable 101, respectively. For example, the type of the cable includes a cable of various solenoid valves mounted on the sewing machine such as a thread cutting solenoid, a cable of various sensors such as a needle up and down position sensor, and a needle return control switch (touch- A cable or the like of various switches, such as a switch, is introduced into the underside of the sewing table 102 by a hole 103 formed in the sewing table 102, and is connected to a control device provided below the sewing table 102 (for example, please refer to Patent Document 1).

As shown in Fig. 10, the cable 101 introduced from the through hole 103 is introduced into the inside of the control box 106. When the cable 101 is connected to the control device in the control box 106, the fixing screw 108 of the front cover 107 in the control box 106 is released, and the front cover 107 is pushed in the direction of the arrow A and opened toward itself. At this time, as shown in Fig. 11, the control device 109 housed in the control box 106 is exposed. Thereafter, as shown in Fig. 12, each cable 101 is connected to the connector 111 provided in the control device 109. The cables 101 connected to the connector 111 are bundled by a wire harness member (bundle tape) 112.

[Patent Document 1] JP-A-2005-111157

Invention

When the sewing machine is installed, it is necessary to simplify the work in the preparation stage such as the cable connection between the sewing machine and the control box. In the conventional control box 106 as described above, in order to connect the cables 101 to the control device 109, it is necessary to carry out the front. The fixing screw 108 of the cover 107 is loosened and then locked, so a tool such as a screwdriver is required.

Further, when the front cover 107 is opened, not only the connector 111 is exposed but the entire control device 109 is exposed, so that the other components of the control device 109 are damaged when the cable 101 is connected or repaired.

Accordingly, the present invention has been made in view of the foregoing problems, and an object thereof is to provide a control box for a sewing machine which can easily connect a cable and a control device by hand without using a tool. It is possible to prevent damage to other components disposed in the control device during the connection work.

The invention of the first aspect is a control box for a sewing machine, comprising: a control device (80) for outputting a control signal to a plurality of electrical functional components disposed in the sewing machine to control a driver of the sewing machine; a plurality of connectors A cable (98) for transmitting the aforementioned control signals to the plurality of electrical functional components, respectively; and a cover (81) for covering the control device. Wherein, the control device is provided with a connector arrangement portion (84) for collectively arranging the plurality of connectors in the vicinity of the surface of the control device, and the cover is provided with an opening portion (89) formed in the opening The connector facing the connector arrangement portion and the connector cover (82) are flexible and are provided so as to cover the opening with respect to the cover, and are freely detachable to the outside. Further, the connector cover is provided with a cable guiding portion (95) for accommodating a cable connected to the plurality of connectors and guiding the cable to a longitudinal direction of the connector cover; a wire through portion (96), the cable guided by the cable guiding portion can be guided to the outside; and the engaging portion (90) can be detachably carded by the aforementioned flexibility Cooperate with the aforementioned cover.

The electrical functional component herein refers to a function that allows the current to flow through the member, such as an actuator that can be driven by energization, a sensor that transmits a detection signal, or can be operated by The switch of the output operation signal and the like is taken as an example.

According to the invention of claim 1, the plurality of connectors for connecting the cables for transmitting control signals to the plurality of electrical functional components are collectively disposed in the connector arrangement portion, and the connector cover portion is disposed on the cover An opening portion is formed at a position to be provided, and a connector cover covering only the opening portion is detachably provided. Therefore, as long as the connector cover is removed, only the plurality of connectors can be exposed to the outside without the cover being removed, and the plurality of connectors and cables can be connected without removing the cover. Moreover, the connector cover is formed of a flexible material and can be flexibly attached and detached to the cover. Therefore, when the cable is connected to the connector, it is not necessary to remove the case by using a screwdriver or the like as in the prior art. Cover, and the cable can be easily connected to the connector with your hand. Therefore, the work efficiency can be improved.

Moreover, in the present invention, the plurality of connectors are collectively disposed in the connector arrangement portion, and the connector cover is provided only to cover the connector arrangement portion. Therefore, when the cable and the plurality of connectors are connected, the electrical functions other than the connector are provided. The state in which the member is covered by the cover can prevent damage to other parts of the control device when the cable is connected to the connector.

At this time, since the connector arrangement portion is provided with the engagement portion, the connector cover can be detachably engaged with the cover by the engagement portion. Thereby, the operator can attach and detach the connector cover by operating only the engaging portion.

Further, the cables respectively connected to the plurality of connectors are housed in the cable guiding portion and are not exposed to the outside, and are guided to the longitudinal direction of the connector cover. The cable that is guided to the long side of the connector cover is guided to the outside through the cable feedthrough. Thereby, the cables can be naturally bundled together by the connector cover, and it is not required to be bundled by the cable tie as in the prior art, so that the work steps can be reduced and the work efficiency can be improved.

According to the invention of the first aspect, when the cable is connected to the connector, it is not necessary to remove the cover using a tool such as a screwdriver, and the cable can be easily connected to the connector by hand. Therefore, the work efficiency can be improved.

In addition, it is also possible to prevent damage to other parts of the control device when the cable is connected to the connector.

In addition, the operator can perform the attachment and detachment of the connector cover by operating only the engaging portion.

Moreover, the cables can be naturally bundled together by the connector cover, and it is not required to be bundled by the cable tie as in the prior art, so that the work steps can be reduced and the work efficiency can be improved.

Best form for implementing the invention

The best mode of the control box of the sewing machine embodying the present invention will be described in detail below with reference to the drawings.

<The whole structure of the sewing machine>

As shown in Fig. 1, the sewing machine 1 is provided with a sewing table 3 supported at the upper end of the plurality of leg portions 2, and is formed to face the outline. The font is provided on the sewing machine body 4 of the sewing table 3.

A sewing machine motor (not shown) that is a driving source for sewing the sewing machine 1 is built in the lower portion of the sewing machine body 4. The sewing machine motor is connected to the upper shaft (not shown) and the lower shaft (not shown) provided in the sewing machine body 4.

The upper shaft is connected to a needle bar 6 which is movable up and down in synchronization with the rotation of the upper shaft, and the needle bar 6 is provided with a needle 7 which is wound with an upper thread and which are respectively located on one of the upper and lower axes along the sewing machine 1. Therefore, by driving the sewing machine motor, the drive can be transmitted from the upper shaft to the stylus 7 through the belt, and the stylus 7 can be moved up and down.

As shown in Figs. 1 to 3, the sewing machine 1 includes a control box 8, and the control box 8 is provided with a control device 80 for controlling the driving of the sewing machine motor, and is electrically connected to the motor. The control device 80 is electrically connected to the operating pedal 11 through the pedal sensor 11a, and the operating pedal 11 can be input according to the user's stepping direction (stepping forward or backward) or pressing the amount. The indication of the sewing machine 1 drive.

The sewing machine 1 is provided with a power switch 12 at the lower portion of the sewing table 3. By turning ON/OFF the power switch 12, the power supply to the control device 80 inside the control box 8 of the sewing machine 1 can be turned on/off.

<Control Box>

As shown in FIGS. 1 and 2, the control box 8 can perform drive control of each actuator of the sewing machine 1, etc., and includes a control device 80 that can receive an output signal detected by a sensor or the like for processing. The cover 81 covers the control device 80 to protect it from external impact or adhesion; and the connector cover 82 is used to cover a portion of the control device 80 like the cover 81.

As shown in Fig. 3, the control device 80 is provided with a support 80a at the center in the thickness direction. The control board 85 used for the control of each part of the sewing machine 1 is provided in the front side of the support body 80a. On the inner side of the support 80a, a power supply substrate 86 for supplying current to the control substrate 85 is provided.

The control board 85 includes electronic components that are disposed in the sewing machine 1 and that can respectively input and output control signals to external electric function members that can function as a current through, such as an actuator, a sensor, or a switch; The plurality of connectors 83 are detachably connected to the electrical functional components by cables for transmitting control signals. The plurality of connectors 83 are collectively disposed on one portion of the surface of the control substrate 85, and this region can constitute a connector arrangement portion.

As shown in Fig. 2, the cover 81 is a member covering the entire control unit 80, and includes a cover 87 and a cover 88, the former covering the front side of the control unit 80 and the latter covering the back side of the control unit 80. The covers are covered from the watch holding device 80 and connected by connecting members such as screws.

As shown in FIG. 4, when the cover 87 is attached, the opening 87 is formed at a position facing the connector arranging portion 84 on the cover 87, and the opening 89 is formed such that the connector arranging portion 84 is exposed. The size required externally. The cover 87 is provided so as to cover the control device 80 without contacting the minimum thickness position of the electronic component other than the connector 83 of the control device 80, and the connector 83 larger than the electronic component is formed to be larger than the cover 87. In the thickness position, each of the connectors 83 can be exposed to the outside by the opening 89 by forming the opening 89.

The opening portion 89 is formed in a substantially rectangular shape, and a concave portion 91 is formed directly above the upper edge portion of the opening portion 89, and the hook-shaped engaging hook 90 formed as the engaging portion on the connector cover 82 is engaged. A fitting groove 93 is formed in the lower edge portion of the opening portion 89, and is fitted into the fitting hook 92 (refer to Figs. 5 and 7) formed in the connector cover 82.

As shown in FIGS. 5 and 6, the recessed portion 91 is formed so as to be fitted into the engaging hook 90 in an elastically deformed state, and the engaging hook 90 is held in this state. Specifically, the concave portion 91 includes a bottom portion 91a formed right above the opening portion 89, a wall portion 91b formed upright in the innermost portion of the bottom portion 91a, and a top portion 91c opposed to the bottom portion 91a.

The top portion 91c is formed to be substantially parallel along the bottom portion 91a, and is formed to have a gap with the upper end of the wall portion 91b. By engaging the projection 97 (described later) formed on the upper surface of the engaging hook 90 in the gap, the engaging hook 90 can be engaged with the recess 91.

The fitting groove 93 can hold the fitting hook 92 in a state in which the fitting hook 92 is fitted, and the lower end portion of the connector cover 82 can be detachably fixed to the cover 87. The fitting groove 93 is formed to extend downward from the lower edge portion of the opening portion 89.

As shown in FIG. 7, the connector cover 82 is formed as a box-shaped member having a long direction in one direction, and is formed to protrude from the outside of the cover 87 when mounted on the cover 87, in order to accommodate the opening. The plurality of connectors 83 exposed by the portion 89 or a plurality of cables connected to the connectors 83. The connector cover 82 is formed of a material having flexibility such as a synthetic resin. Further, as shown in Fig. 3, the inner side faces 95a, the front face 95b, and the lower face 95c along the longitudinal direction of the connector cover 82 can be used as the cable guide portion 95 to accommodate the respective connectors connected to the plurality of connectors 83. The cable is guided to the function of the long side of the connector cover 82. Therefore, by the cable guiding portion 95, the cables respectively connected to the plurality of connectors 83 can be guided to concentrate the cables in the longitudinal direction of the connector cover 82 at the size of the cable guiding portion 95. Within the scope.

One of the sides perpendicular to the longitudinal direction of the connector cover 82 is provided with an opening that communicates with the inside of the connector cover 82. This opening serves as the cable feedthrough 96 and functions to guide the plurality of cables guided by the cable guide 95 to the outside of the connector cover 82. Since the plurality of cables guided by the cable guide portion 95 can be collected in the cable feedthrough portion 96, the cable feedthrough portion 96 can function as a wire harness member to function as a plurality of cables.

The upper edge portion of the cable guiding portion 95 is formed with two engaging hooks 90 spaced apart by a predetermined interval, and the engaging hooks 90 are formed in a U-shape as viewed from the side. Specifically, the engaging hook 90 is formed so as to extend from the upper edge portion of the cable guiding portion 95 in a direction substantially perpendicular to the longitudinal direction, and is folded back in the middle to extend obliquely rearward. Moreover, the front end of the engaging hook 90 is located above the bottom end of the engaging hook 90, and by pressing the front end of the engaging hook 90 downward, the recess 91 can be embedded by the flexible deformation of the hook, and then The restoring force to return to the original state is held in the recess 91.

A protrusion 97 protruding upward from the upper surface of the engaging hook 90 is formed on the upper side near the front end of the engaging hook 90. As shown in Fig. 6(b), by engaging the end portion of the top portion 91c when the engaging hook 90 is fitted into the recess 91, the projection 97 serves as a stopper to prevent the connector cover 82 from being detached from the recess. 91's function.

The lower edge portion of the cable guiding portion 95 is formed with two fitting hooks 92 spaced apart by a predetermined interval, and the fitting hook 92 is formed to extend from the lower edge portion of the cable guiding portion 95 in a direction substantially perpendicular to the longitudinal direction. After that, it extends downwards in the middle. By fitting the fitting hook 92 into the fitting groove 93, the fitting hook 92 can be held in the fitting groove 93.

<Installation structure of connector>

As shown in Fig. 5, in order to attach the connector cover 82 to the cover 87 of the cover 81, the two fitting hooks 92 of the connector cover 82 must be respectively inserted into the two fitting grooves 93 of the cover 87. Then, before the snap hook 90 is fitted into the recess 91, the plurality of cables connected to the plurality of connectors 83 are pulled into the cable guide 95 and guided to the cable feedthrough 96.

Next, the plurality of cables pulled into the cable guide 95 are passed through the cable feedthrough 96 and guided to the outside of the connector cover 82.

Thereafter, the two engaging hooks 90 of the connector cover 82 are fitted into the two recesses 91, and the connector cover 82 can be attached to the cover 87 by the protrusion 97 of the engaging hook 90 being caught on the top 91c of the recess 91. .

As shown in Fig. 8, when the connector cover 82 is attached to the cover 87 by this method, the connector 83 is protruded from the opening portion 89 formed in the cover 87, and is exposed in the connector cover. 82 is attached to the outside of the cover 87 and protrudes from the outside. The protruding function can function as the cable guiding portion 95. Therefore, the cable guiding portion 95 can accommodate the plurality of connectors 83 and the cable 98 connected thereto.

<Action effect>

According to the control box 8 of the sewing machine 1, the plurality of connectors 83 are collectively disposed in the connector arrangement portion 84, and the opening portion 89 is formed on the front cover 87 of the cover 81 and the connector arrangement portion 84, and A connector cover 82 covering only the opening portion 89 is detachably provided. Therefore, by simply removing the connector cover 82, only the plurality of connectors 83 can be exposed to the outside in a state in which the cover 81 is attached, and the plurality of connectors 83 and the plurality of cables 98 can be connected without removing the cover 81. Further, since the connector cover 83 is formed of a flexible material and can be flexibly attached and detached to the cover 81, when the cable 98 is connected to the connector 83, it is not necessary to use a screwdriver or the like as in the related art. The tool removes the cover 87 of the cover 81, and the cable 98 can be easily attached to the connector 83 by hand. Therefore, the work efficiency can be improved.

Further, the plurality of connectors 83 are collectively disposed in the connector arranging portion 84, and the connector cover 82 is provided to cover only the connector arranging portion 84. Therefore, when the plurality of cables 98 and the plurality of connectors 83 are to be connected, they are connectors. Since the other electrical functional components other than 83 are covered by the cover 81, it is possible to prevent damage to other parts of the control device 80 when the connection between the cable 98 and the connector 83 is performed.

Further, since the connector cover 82 is provided with the engagement hook 90, the connector cover 82 can be detachably engaged with the cover 81 by the engagement hook 90. Thereby, the operator can attach and detach the connector cover 82 by operating the engagement hook 90.

Further, the plurality of cables 98 connected to the plurality of connectors 83 are housed in the cable guiding portion 95 without being exposed to the outside, and are guided to the longitudinal direction of the connector cover 82. The cable 98 guided to the longitudinal direction of the connector cover 82 is guided to the outside through the cable feedthrough 96. Thereby, the plurality of cables 98 can be naturally bundled together by the connector cover 82 without being bundled by a cable tie as in the prior art, so that the work steps can be reduced and the work efficiency can be improved.

<Other>

Further, the scope of the invention is not limited to the above embodiment. For example, the number of the engaging hooks and the fitting hooks is arbitrary and can be freely changed. Of course, a larger number can improve the stability of the mounting on the cover, but it increases the working time and labor when installing the cover, so the number can be appropriately adjusted according to the size of the connector cover.

Further, the lower end edge of the opening portion and the connector cover may be rotatably connected by a hinge instead of the cover and the connector cover which are joined together by the fitting of the fitting groove and the fitting hook. Thereby, there is no need to ensure space for placing the connector cover after the connector cover is removed.

Others are free to design changes within the scope of the invention.

1. . . Sewing machine

2. . . Foot

3. . . Sewing table

4. . . Sewing machine body

6. . . Needle bar

7. . . Needle

8. . . control box

11. . . Operating pedal

11a. . . Pedal sensor

12. . . switch

80. . . Control device

80a. . . Support

81. . . Cover

82. . . Connector cover

83. . . Connector

85. . . Control substrate

86. . . Power substrate

87. . . Cover

88. . . Ligai

89. . . Opening

90. . . Clamp hook

91. . . Concave

91a. . . bottom

91b. . . Wall

91c. . . top

92. . . Chimeric hook

93. . . Mating slot

95. . . Cable guide

95a. . . Above

95b. . . front

95c. . . below

96. . . Cable feedthrough

97. . . Protrusion

98. . . Cable

100. . . Sewing machine

101. . . Cable

102. . . Sewing table

103. . . Hole

106. . . control box

107. . . The front cover

108. . . Fixing screw

109. . . Control device

111. . . Connector

112. . . Cable member

A. . . Opening direction

Fig. 1 is a schematic front view showing the sewing machine.

Figure 2 is a perspective view showing the appearance of the control box.

Figure 3 is a cross-sectional view showing the side of the interception control box.

Fig. 4 is a perspective view showing the appearance of the control box when the connector cover is removed.

Fig. 5 is an enlarged perspective view of the connector arrangement portion.

Fig. 6(a) and (b) are explanatory views of the engaging mechanism of the engaging hook and the recess.

Figure 7 is a perspective view showing the appearance of the connector cover.

Figure 8 is a cross-sectional view showing the upper side of the interception control box.

Fig. 9 is a schematic perspective view showing a prior art sewing machine.

Figure 10 is a front elevational view showing a prior art control box.

Figure 11 is a perspective view showing a prior art control box in which the cable and the connector are separated when the front cover is opened.

Fig. 12 is a perspective view showing a prior art control box in which the cable is connected to the connector when the front cover is opened.

8. . . control box

11a. . . Pedal sensor

81. . . Cover

82. . . Connector cover

83. . . Connector

87. . . Cover

88. . . Ligai

90. . . Clamp hook

Claims (1)

A control box for a sewing machine, comprising: a control device for inputting a control signal to a plurality of electrical functional components disposed on the sewing machine to control driving of the sewing machine; and a plurality of connectors connected to the plurality of the plurality of a plurality of cables for transmitting the control signal by the electrical functional component; and a cover covering the control device, wherein the control device is provided with a connector arrangement portion for collectively arranging the plurality of connectors in the control device In the vicinity of the surface, the cover is provided with an opening formed at a position opposed to the connector arranging portion, and a connector cover having flexibility and being provided to cover the opening and being opposite to The cover is detachably attached to the outside, and the connector cover is provided with: a cable guiding portion that accommodates the plurality of cables connected to the plurality of connectors, and guides the plurality of cables to the connector cover a long-side direction; a cable feedthrough that collects the plurality of cables guided by the cable guide and guides the plurality of cables to the outside And an engaging portion, by the flexible line may be connected to the cover is removably engaged with the lid.