CN1160495C - Control box of sewing machine - Google Patents

Abstract

To provide a control box of the sewing machine whose cover portion can be easily attached and detached, or opened and closed, thereby the maintenance operation such as inspection or replacement of the internal electric parts, can be easily conducted. A control box of the sewing machine having a frame portion 20 on which electric parts 41 and 42 to control or drive the sewing machine are fitted, and a cover portion 50 fixed on the frame portion 20 such that it covers the electric parts 41 and 42, in which the cover portion 50 is fixed on the frame portion 20 by fixing means 57 and 59; and on the outer peripheral portion 58a of the cover portion 50, an engagement portion 58 to engage with an engaged portion 23 provided on the frame portion 20 is provided; and when, under the condition that the engagement portion 58 of the cover portion 50 is engaged with the engaged portion 23 of the frame portion 20, the cover portion 50 is fixed on the frame portion 20 by the fixing means 57 and 59, the outer peripheral portion 58a of the cover portion 50 is elastically bent, thereby, the engagement portion 58 is fixed onto the engaged portion 23 in close-contact with it.

Description

The control cabinet of Sewing machines

The present invention relates to be used to control the control cabinet that Sewing machines drives.

In the technical field of industrial sewing machines, in general, the electrical motor of sewing machine that is connected with machine spindle is installed in the below of sewing machine table, control cabinet is built-in with and is used to drive electric parts electrical motor of sewing machine or Sewing machines auxiliary equipment or that control drives, and is installed in the below of platen.

In Sewing machines in the past, the electrical motor of sewing machine that drives Sewing machines be located at sewing machine table below, control cabinet is installed in the downside of this electrical motor of sewing machine.In addition, along with the miniaturization of electrical motor of sewing machine, electrical motor of sewing machine is located on the Sewing machines head.

Figure 12 has represented that this electrical motor of sewing machine is located at the Sewing machines head and has the industrial sewing machines of control cabinet.

Among Figure 12, Sewing machines P10 has Sewing machines head P1, and this head P1 is arranged on the sewing machine table P3, and is provided with the motor P2 that drives this Sewing machines in inside.

Control cabinet P4 is configured in the bottom of sewing machine table P3, with screw nut assembly P5, P5 directly be fixed on sewing machine table P3 below, and be provided with the electric parts that is used to control and drive Sewing machines P1 in inside.Pedal sensor P7 links to each other with the connecting rod P6 of pedal P8, and be arranged among this control cabinet P4, by regulating the amount of entering into of making the foot-operated moving pedal P8 of operator of Sewing machines P1, aforementioned pedal sensor P7 checks its amount, electrical motor of sewing machine P12 is rotated or stop, in addition, control so that the auxiliary equipment of the Sewing machines of tangent line etc. moves or stops.

For example, as shown in figure 13, aforementioned control cabinet P4 has with aforementioned screw nut assembly P5 and is fixed on frame P41 on the sewing machine table P3; Constitute the lid P44 of bottom surface, left and right side and the trailing flank of aforementioned control cabinet P4; Constitute the accessory cover P45 and the electric parts 40 of the leading flank of this control cabinet P4.This electric parts 40 is located at the inside that is made of the control cabinet P4 of case shape aforementioned each lid.For example, this electric parts P40 is made of substrate P 42, power transformer P43 etc.

On aforementioned frame P41, pedal sensor P7 is configured in the outside of electric parts P40 and lid P44 and is fixed on this frame P41 with screw etc.Because this frame P41 needs the foot-operated power that ability is made operator's foot pedals P8, in general, is to be made by aluminium diecasting and metallic plate.

The various control circuits of the control circuit of Sewing machines and Sewing machines are located on the substrate P 42, and the various control circuits of Sewing machines comprise conversion source power supply and the circuit of powering to electrical motor of sewing machine P2, and aforementioned power supply circuits have high-tension electricity and heating.In addition, power transformer P43 is the parts that the actuator of the solenoid of actions such as tangent line that makes Sewing machines and hoisting mechanism or electromagnetic valve is powered, and high-tension electricity is also arranged and can generate heat.These power supply circuits, power transformer etc. are high-tension electricity portion.

Pedal sensor P7 changes into electric signal to the angle of stepping on of pedal P8, and delivers in the control circuit on the substrate P 42 that is located in the control cabinet, by the driving of this control circuit control motor P2.

For make make that operator waits not can be because of maloperation contacts substrate P 42 and the power transformer P43 with aforementioned high-tension electricity portion, except the front, all use and covers P44 and all be covered with, and cover P44 with a plurality of screw P46 handles and be installed on the frame P41 from the below.In general, this lid P44 makes with metal or resin.

In addition, accessory cover P45 is located on frame P41 and the lid P44 with freely loading and unloading with a plurality of screw P45a, by pulling down this lid, the maintenance operation that the front is opened just can easily carry out substrate P 42 etc.

On the other hand, for the user of the change of frequently carrying out the Sewing machines performance setting etc., have and want just can load and unload the such requirement of (switching) accessory cover P45 with instrument without screw.

As the switching type of no screw as shown in figure 14, generally be to adopt the structure of opening accessory cover P48 front side (fore side of arrow Y direction indication) by articulated section P47.

In Figure 14, when Sewing machines head P10A is arranged on the sewing machine table P11, runs through sewing machine table P11 and, be located at the bottom of Sewing machines head P10A downwards from the outstanding food tray P13 of this sewing machine table P11.Have, control cabinet P50 is fixed on the sewing machine table P11 with screw nut assembly P12, P12 again, and accessory cover P48 is installed in by articulated section P47 and covers on the P49, and aforesaid these structures are different with the structure of Figure 12.Other structure is identical with Figure 12's, and the Therefore, omited is described.

Yet loading and unloading type control cabinet P4 shown in Figure 12 must cover high voltage portion fully with lid P44, and like this, lid P44 must become greatly, need at least four jiaos from below the screw P46 that fixes.Therefore, making operator and maintenance operations person when carrying out the maintenance of these high-tension electricity portions,, exist and to pull down at least four screw P46, the problem that its operation variation is such pulling down under the situation of covering P44 in order to exchange substrate P42 etc.

Countermeasure as this respect, consider to reduce the radical that lid P44 is fixed on the screw P46 on the frame P41, yet, just be unfavorable for fixing between frame P41 and the lid P44 if reduce the radical of screw P46, vibration during the Sewing machines high-speed driving can make frame P41 and the contact portion of covering P44 produce friction and wear and tear, and has brought the negative effect that produces noise.

In addition, checking fuse or exchanging operation or switching under the situation of adjustment operations such as input voltage, only open accessory cover P45, just can carry out control cabinet is installed in operation on the sewing machine table same as before, but, when checking the high-voltage section of substrate P 42 under the situation of operation cautiously, perhaps under the situation of the circuit of checking substrate 42, below fixing base P42 from frame P41, like this, pull down cover P44 and accessory cover P45 after, the operator must pierce sewing machine table below, carry out such operation.

For the user who frequently sets change, hope just can be loaded and unloaded (switching) accessory cover P45 without screw with instrument, also wish under without the situation of instrument, can not open and close accessory cover P45 on the contrary, just can not set change because of maloperation thereby make the operator.In the prior art, need to prepare the accessory cover P45 of screw fixed class and be not screwed these two types of the accessory covers that just can load and unload class.

Yet, if prepare two types accessory cover, must keep two types commercially available stock of Sewing machines, increased the burden of stock control.In addition, after the user buys Sewing machines, thinking that never being screwed the accessory cover that just can load and unload is altered under the situation of the dissimilar accessory cover that is screwed, and exists and is not only accessory cover even accessory cover P44 and frame P41 etc. must exchange such problem.

Yet, because the control cabinet P50 of industrial sewing machines is according to aforementioned such, rear side at Sewing machines P10A is installed on the platen P11 with screw nut assembly P12, P12, thereby, be installed at the selecting arrangement of automatic cloth lifting device and line bits withdrawing device etc. under the situation of downside of food tray P13, exist accessory cover P48 and do not open, just can not maintain such problem.In addition, shown in Figure 14 (b), the front side (fore side) of the control cabinet of installing at sewing machine table P11 downside, the bottom of the food tray of Sewing machines head is positioned on the dotted line P13a, exists the situation that accessory cover P48 can't open.

In these cases, control cabinet P50 itself must be installed in other place.

Corresponding, as shown in figure 15, consider by hinged P51 its allocation position of accessory cover P52 to be opened/closed very downward so that can not run into the bottom of selecting arrangement P14 or food tray.Yet control cabinet P50a is under the situation of this spline structure, and this is elongated on above-below direction for this control cabinet P50a, the control cabinet P50 maximization that becomes itself, and platen narrows down, and will hinder the operation of making of making the operator like this.

In view of the above problems, the purpose of this invention is to provide a kind of control cabinet of Sewing machines, the maintenance of the inspection of the electric parts of loading and unloading that it can easily cover or switching, inside, exchange etc.

For overcoming the above problems, the invention of claim 1 record is mounted in the control cabinet of the Sewing machines of sewing machine table bottom, its inside is provided with the electric parts that carries out Sewing machines control or drive usefulness, wherein, be provided with the Sewing machines head on the top of aforementioned sewing machine table, it is characterized by, also has the frame that is fixed on aforementioned sewing machine table bottom, be installed in the aforementioned electric parts on the plane of the vertical direction of this frame, by being fixed on the aforementioned frame to cover the lid of aforementioned electric parts, aforementioned lid can be installed on the aforementioned frame with freely loading and unloading, is provided with auxiliary lid on aforementioned lid free to rotately.

The invention that claim 1 is put down in writing is such: when the aforementioned frame that is fixed on aforementioned sewing machine table bottom is pulled down aforementioned lid, also just can together pull down aforementioned auxiliary lid, the aforementioned electric parts that is installed on the aforementioned frame also just exposes on the direction parallel with aforementioned sewing machine table.

Thereby, pull down aforementioned cover from aforementioned frame, aforementioned frame peace is changeed on aforementioned sewing machine table, just can easily confirm aforementioned electric parts, just can improve the maintainability of this electric parts.

At this, the driving of so-called Sewing machines or the electric parts of control are exactly to have that power transformer for example, rectification circuit, electrical motor of sewing machine drive the drive circuit of usefulness, the actuator of Sewing machines drives the control circuit of drive circuit, CPU (computer central processing unit), RAM (random access memory) and the ROM (read-only storage) of usefulness; And the electric base of the above-mentioned various circuit of lift-launch etc.

The invention of claim 2 record is characterized by, but auxiliary lid freely openable or be installed on the aforementioned lid with freely loading and unloading, aforementioned auxiliary lid covers other electric parts that is installed on the aforementioned frame, aforementioned auxiliary lid has the maintaining body that keeps this auxiliary lid under the state that covers aforementioned other electric parts, under the state that keeps by aforementioned maintaining body, can be fixed on fixture on the aforementioned frame to aforementioned auxiliary lid, the aforementioned fixation device is made of the lid of through hole and thin wall shape, aforementioned through hole forms on aforementioned auxiliary lid and can insert securing member, and the lid of aforementioned thin wall shape can clog this through hole.

Invention according to claim 2 record, owing to be provided with the maintaining body that keeps this auxiliary lid under the state that is covering aforementioned other electric parts on the aforementioned auxiliary lid, with under the state that keeps by aforementioned maintaining body, can be fixed on fixture on the aforementioned frame to aforementioned auxiliary lid, thereby, keep or remove this hold mode by aforementioned maintaining body, just can carry out the switching or the loading and unloading of aforementioned auxiliary lid without the aforementioned fixation device, simultaneously, the lid of the aforementioned thin wall shape by crashing through the aforementioned fixation device, make aforementioned through hole expose the outside, securing members such as screw are inserted this through hole, under the state that covers aforementioned other electric parts, just can be fixed on aforementioned accessory cover on the aforementioned frame.

Thereby, when the Sewing machines control basal plate that is used to import Sewing machines control signal and feedback signal is plugged with connector or when the Sewing machines maintenance of the change of carrying out the Sewing machines performance setting etc., utilize a kind of structure of auxiliary lid and, can set the structure of the auxiliary lid that loads and unloads or open and close for the structure that opens and closes with instrument or the structure that opens and closes without instrument according to user's requirement.

Have, as aforementioned fasteners, enumerating screw etc. is desirable for example, particularly Screw again.

The invention of claim 3 record is characterized by, but auxiliary lid by the articulated section freely openable be installed on the aforementioned lid, aforementioned auxiliary lid covers the front that other electric parts that is installed on the aforementioned frame constitutes aforementioned control cabinet simultaneously again, and aforementioned articulated section is configured in from the position of the centre between the front and back of aforementioned control cabinet to rear side.

Invention according to claim 3 record, but since the articulated section auxiliary lid freely openable be installed on the aforementioned lid, this articulated section is configured in from the position of the centre between the front and back of aforementioned control cabinet to rear side, thereby, when aforementioned control cabinet side is depicted aforementioned auxiliary cover body opening/closing should auxiliary lid track.

Even the constituent part of Sewing machines is positioned at the front side of control cabinet, with different in the past, also can not make the shape of control cabinet itself very big, during aforementioned auxiliary cover body opening/closing, aforementioned auxiliary lid can not run into the constituent part of Sewing machines.

In the bottom of aforementioned sewing machine table,, open the maintenance that aforementioned auxiliary lid just can easily be installed in the aforementioned electric parts on the aforementioned frame even approaching aforementioned auxiliary lid disposes the constituent part of Sewing machines.

The invention of claim 4 record is, by fixture aforementioned lid is fixed on the aforementioned frame, periphery at aforementioned lid is provided with the junction surface, should engage with the joint on being located at aforementioned frame, under the junction surface of aforementioned lid and state that the joint of frame engages, by lid being pressed abd fixed on the frame by the aforementioned fixation device, the periphery of lid is flexibly crooked on the direction of intersecting with aforementioned compaction direction, aforementioned junction surface is just fixed near the joint, because covering the lid that is located at the aforementioned electric parts on the frame is fixed by the aforementioned fixation device, so, when checking and exchange electric parts, by pulling down the aforementioned fixation parts, just can on frame, easily pull down lid, thereby can improve the operation that lid loads and unloads from frame.And can improve the maintenance efficiency of operation of the aforementioned electric parts that is installed on the aforementioned frame.

In addition, by lid being pressed abd fixed on the frame by the aforementioned fixation device, the periphery of lid is flexibly crooked on the direction of intersecting with aforementioned compaction direction, aforementioned junction surface is just fixed near the joint, thereby aforementioned peripheral part is just fixed near frame, can suppress to make owing to the swing of Sewing machines the mutual wearing and tearing that rub and cause of contact portion of aforementioned frame and aforementioned lid, simultaneously, can prevent the generation of noise.

In addition, by aforementioned lid is fixed on the frame, lid is just flexibly crooked, and aforementioned junction surface is just fixed near the joint, if like this, the aforementioned fixation device can be any device, for example with the securing member of Screw etc.The fixture of this formation be provided in a side of the aforementioned cover side boss, insert Screw and this Screw Screw hole that be screwed into and that be located at aforementioned frame side in this boss.

Fig. 1 is the decomposition diagram of schematic configuration of the control box for sewing machine of expression one embodiment of the invention.

Fig. 2 is the section plan that explanation body lid 50 is fixedly mounted on the state on the frame 20, is the view that expression body lid is contained in the state on the frame (a), (b) is the view that the body lid is fixed on the state on the frame.

Fig. 3 is the view that the aforementioned lid of expression is contained in the state on the frame, is the section plan of aforementioned lid (a), (b) is provided in a side of the side view of the boss portion on the frame in (a).

Fig. 4 is the right side view of the control cabinet of one embodiment of the invention.

Fig. 5 is the section plan of the engagement state of explanation accessory cover and aforementioned lid.

Fig. 6 is the view of the hole with cover portion of explanation accessory cover, (a) is the section plan of hole with cover portion, (b) is the view from the hole with cover portion of top view.

Fig. 7 is the Sewing machines front view with control box for sewing machine of one embodiment of the invention.

Fig. 8 is the right side view of Sewing machines with control box for sewing machine of one embodiment of the invention.

Fig. 9 is the section plan of first modified example of the assembly structure of explanation frame and body lid.

Figure 10 is the section plan of second modified example of the assembly structure of explanation frame and body lid.

Figure 11 is the section plan of the 3rd modified example of the assembly structure of explanation frame and body lid.

Figure 12 is the front view with industrial sewing machines in the past of control cabinet.

Figure 13 is the exploded perspective view of the control cabinet among Figure 12.

Figure 14 is the view that the Sewing machines of the control cabinet of being with the open and close type accessory cover is equipped with in explanation.

Figure 15 is the Sewing machines right side view of control cabinet that the explanation selecting arrangement is located at the Sewing machines of food tray bottom.

Following embodiment with reference to Fig. 1～11 pair control box for sewing machine of the present invention elaborates.

Among Fig. 1, the control cabinet 10 of Sewing machines is main by the frame 20 that is contained in top 20a on the sewing machine table; The electric parts of forming by the power transformer 41, a plurality of electric base 42～44 and the pedal sensor 45 that are contained on this frame 20; Be configured to cover the body lid 50 of power transformer 41 and electric base 42; Be configured to cover the preceding upper cover body of selecting with electric base 43 60; And the auxiliary lid 70 that is configured to coating electrical part 44 constitutes.

Aforementioned body lid 50 under a plurality of projectioies (junction surface) 58 that are located at opening edge portion are inserted state in a plurality of installing holes (joint) 23 with frame 20 corresponding settings, is fixed on the inside side (being left oblique upside among the figure) of frame 20 with single screw 59.

Upper cover body 60 before aforementioned under the state in a plurality of protruding 62 a plurality of installing holes 25 that insert with frame 20 corresponding settings that are located at opening edge portion, is fixed on the face side (being the oblique downside in the right side among the figure) of frame 20 with pair of screws 65,65.

In addition, accessory cover 70, but its underpart be installed on the body lid 50 on the articulated section 71 freely openable, and its top can be bonded on with freely loading and unloading before on the upper cover body 60.

Have again, body lid 50 constitutes back and the top and bottom, rear and the left and right side, rear of control cabinet 10, before upper cover body 60 constitute the front, top of control cabinets 10 and above the place ahead and before go up the left and right side, auxiliary lid 70 constitute below the front, below of control cabinets 10 and the place ahead and before left and right side down.

Aforementioned frame 20 is for example made with aluminium diecasting, also can form with metallic plate, 20a is provided with installation portion 21,21 above it, with screw 21b, 21b frame 20 is fixed on installation accessory 21a, the 21a at its installation portion 21,21 places, wherein, be fixed on the sewing machine table accessory 21a, 21a are installed with the bolt and nut group.

This frame 20 has the vertical support facial 22 of extending in vertical direction, in this vertical the inside of facial 22 of supporting electric base (hereinafter referred to as substrate) 42 and the power transformer 41 (referring to Fig. 9) with high voltage portion is installed side by side, wherein, the motor power supply circuit is contained in high-tension electricity portion.On surperficial 22a, side disposes by boss 26 and selects electric base (hereinafter referred to as selecting substrate) 43 thereon, at its downside substrate 44 is installed.

In addition, pedal sensor 45 is installed on the sidepiece of frame 20.

The body lid 50 that substrate 42 and power transformer 41 usefulness are fixed on the frame 20 covers, so that cut off with the outside, is protected.

At this, body lid 50 is explained with Fig. 1, Fig. 2.

As shown in Figure 1, body lid 50 is the lid of its front openings with the case shape that forms peristome 51 and be formed from a resin, and its downside sidewall 54 is provided with the fixedly axial region 80,80 hinged with auxiliary lid 70.

The front side front end of the sidewall up and down 53～56 of body lid 50 is provided with the contact portion (hereinafter referred to as opening edge portion) 58 that contacts with frame 20, be installed on the frame 20 so that when covering power transformer 41 and substrate 42 at body lid 50, form a plurality of protruding 58a on contact portion 58, these protruding 58a insert in a plurality of installing holes 23 that form on the frame 20.

In addition, 52 substantial middle portion is provided with outstanding to the inside cannular boss 57 at the back, front end at this boss 57 is provided with the boss hole 57a that runs through back 52, screw 59 is passed this boss hole 57a from the outside, and tighten, thus, just body lid 50 is fixed on the back (Fig. 2 (b)) of frame 20.

Shown in Fig. 2 (a), under the contacted state in the inside of opening edge portion 58 and frame 20, form the front end of boss 57 by this way, that is to say, form the gap of defined width between the back of this front end and frame 20.In a single day the gap of the width of this defined is in owing to being screwed under the front end that screw 59 makes boss 57 and the state that the inside of frame 20 engages, body lid 50 is just flexibly crooked, just displacement laterally (Fig. 2 arrow C direction) of aforementioned protruding 58a, thus make the outside of protruding 58a engage (Fig. 2 (b)) with the inboard 23a of installing hole 23.Projection 58a abuts against inboard 23a and goes up to produce frictional force, because this frictional force just can make the opening edge portion 58 of body lid 50 nestle up with frame 20 without screw.

In this embodiment, constitute protruding 58a like this, that is to say, with installing hole 23 become the plane near part.

As above aforementioned, body lid 50 is under the state that covers power transformer 41 and substrate 42 fully, be fixed on the frame 20 by a screw 59 that is screwed into along general horizontal direction, thereby, when the inspection of carrying out power transformer 41 and substrate 42 etc. and exchange etc., only pulling down a screw 59 just can easily pull down body lid 50 on frame 20, therefore improved the operation of body lid 50, also improved the power transformer 41 that is installed on the frame 20 and the maintenance efficiency of operation of substrate 42 from frame 20 loading and unloading.In addition, the below of creeping into sewing machine table not needing to resemble is in the past pulled down lid and is carried out the inspection of each electric parts and maintenance etc., and just can easily carry out aforementioned work from the side (general horizontal direction) of lid.

In addition, body lid 50 is in case be fixed on the frame 20 with screw 59, and it is interior fixing that protruding 58a just abuts against installing hole 23, thereby, with regard to can suppress owing to the contact portion of Sewing machines swing frame 20 and body lid 50 mutually mutual friction produce wearing and tearing, prevent noise.

Then, the vertical structure of the surperficial 22a of face 22 of supporting to frame 20 explains.

Select substrate 43 vertically to support that this selection substrate 43 is the substrates of installing that the Properties Control device is used that append on facial 22 the surperficial 22a when appending new performance by what boss 26,26 was configured in frame 20.

In addition, substrate 44 is configured in the below of aforementioned selection substrate 43, and be installed on the surperficial 22a of vertical seating surface 22, this substrate 44 is the parts that are provided with key 44a, 44b etc. that the performance setting of the connecting portion of various connectors and Sewing machines uses, and be the parts of operating time and again by maintenance personal etc., wherein, various connectors are the control signal used of actuator with connector and feedback signal with connector etc.

As shown in Figure 3, select substrate 43 to cover, and be clamped on the frame 20 by the front end of the boss 26,26 of the boss 64,64 of this preceding upper cover body 60 and frame 20 by preceding upper cover body 60.

Before upper cover body 60 be that a side forms peristome 61 and the parts of the roughly box that is formed from a resin, have projection (junction surface) 62 and boss 64, wherein, projection 62 is located on the 62a of opening edge portion (peripheral part) with frame 20 contact portions, and boss 64 is inwardly outstanding from the upper front 63 that becomes the control cabinet front.

When being installed on the frame 20, above-mentioned projection (junction surface) is inserted on the surperficial 22a side of vertical seating surface 22 of frame 20 in the formed installing hole (joint) 25.

The boss 64,64 of a pair of hollow form of preceding upper cover body 60, its front end is formed with boss hole 64a, the upper front 63 of upper cover body 60 before boss hole 64a runs through.By the screw 65,65 that passes this boss hole 64a is screwed among boss hole 26a, the 26a of boss 26,26, just preceding upper cover body 60 is fixed on the frame 20.Wherein, above-mentioned boss 26,26 is being provided with on the surperficial 22a of the vertical support facial 22 of frame 20 highlightedly.

In addition, form boss 64,64 like this, that is to say, the 62a of opening edge portion of preceding upper cover body 60 is gone up in the installing hole 25 of the projection 62 insertion frames 20 that are provided with, so that 62a of opening edge portion and frame 20 are in contacted state, at this moment form the gap of Rack between the front end face 26d of boss 64,64 and boss 26, so that front end face 64b does not engage with the front end face 26d of boss 26.

Shown in Fig. 3 (b), the front end 26c of these boss 26,26 goes up and forms protuberance 26b, has boss hole 26a on the front end face 26d of protruding 26b, and this protuberance 26b is extrapolated among the installing hole 43a that selects substrate 43.By the installing hole 43a of selection substrate 43 is embedded into outward on this protuberance 26b, the circumference of the installing hole 43a of selection substrate 43 the insides just is in the state by the front end 26c engaging of boss 26.The height of this protuberance 26b is roughly the same with the thickness of selecting substrate 43, select substrate 43 to be installed on this protuberance 26b, be screwed into screw 65, just preceding upper cover body 60 is fixed on the frame 20 thus, at this moment, the front end face 64b of boss 64 contacts with the front end face 26d of the protuberance 26b of the boss 26 of frame 20, selects substrate 43 to be fixed by the front end 26c clamping of the front end face 64b of boss 64 and boss 26.

Have again, under the state in the installing hole 25 of the projection 62 insertion frames 20 before being arranged on the 62a of opening edge portion of upper cover body 60, when being fixed on preceding upper cover body 60 on the frame 20 by boss 64 usefulness screws, this boss 64 is in the inboard such position that allows protruding 62 elastic bendings according to preceding upper cover body 60 abut against installing hole, is provided with boss 64 at two places of this preceding upper cover body 60.

Shown in Fig. 3 (a), projection 62 is inserted in the installing hole 25 of frame 20 corresponding with it, preceding upper cover body 60 is installed on the vertical seating surface 22 of frame 20, screw 65,65 is inserted boss hole 64a, the 64a from the front side, screw 65,65 is fastened among boss hole 26a, the 26a of vertical seating surface 22, thus, before upper cover body 60 elastic bendings the time, also elastic bending of the 62a of opening edge portion (dotted line 62A, 62A), projection 62 inwalls near installing hole 25, frictionally is fixed.Therefore, the 62a of opening edge portion of preceding upper cover body 60 with frame 20 near state under fixing.

Therefore,, select substrate 43 just to be installed on the frame 20, so also can shorten the activity duration by selecting the preceding upper cover body 60 of substrate 43 to be fixed on the frame 20 covering.

In addition, the A lower side wall portion of this preceding upper cover body 60 is provided with the holding section 66,66 of the locking plate 72,72 of the formation maintaining body that engages auxiliary lid 70.

Then, this auxiliary lid 70 is explained.

Among Fig. 4, auxiliary lid 70 is the parts that are formed from a resin and cover the substrate 44 that is installed on the frame 20, and a pair of pin- joint piece 71,71 is outstanding towards the platen rear by the bottom, and the both sides, top are provided with locking plate 72,72.An axial region 80,80 of pin- joint piece 71,71 and body lid 50 is hinged.Simultaneously, locking plate 72,72 is fastened on the holding section 66 of preceding upper cover body 60.Like this, assist lid 70 to be installed on the axle freely to rotate around the articulated section that is hinged on the lid 50.

Among Fig. 5,72a is the claw for locking plate 72 front ends, and 66a is the connecting hole that claw inserts, the 69th, and the block that contacts with the top, the inside of the front 73 of auxiliary lid 70.

The structure of the locking plate 72 of auxiliary lid 70 is, this locking plate 72 forms on elastically deformable ground, the side of control cabinet 10 (left and right directions), by allowing this locking plate 72 flexibly be out of shape (locking plate among the figure shown in the with dashed lines), the claw 72a that its front end is formed inserts among the connecting hole 66a of holding section 66, in case the locking plate reduction, claw 72a just is fastened on the inboard outer edge 66b of connecting hole 66a.Like this, be fastened on the inboard outer edge 66b of connecting hole 66a, just will assist lid 70 to remain under the state of covered substrate 44 by making claw 72a.

Like this when locking plate 72 engages with holding section 66; just will assist lid 70 to remain under the state of covered substrate 44; just can cut off substrate 44 so that protected with outside; by removing engaging of locking plate 72 and holding section 66,66; fulcrum 80,80 is rotated around the center; just can easily open auxiliary lid 70, substrate 44 also just exposes the outside.Have again, form peristome 78 (Fig. 1), show so that can observe the performance that sets from the outside in the lower right of these auxiliary lid 70 fronts.

In addition, at the upside of the front portion 73 of this auxiliary lid 70 central portion slightly, under the state before the pin- joint piece 72,72 of auxiliary lid 70 is fastened on the holding section 66,66 of upper cover body 60, boss with cover 75 forms highlightedly in the inboard, can be fixed on auxiliary lid 70 on the boss with cover 75 on the frame 20.

As shown in Figure 6, the lid 77 that this boss 75 with cover has through hole 76 that securing members such as Screw can pass and one side clogs the thin wall shape of this through hole 76 from the front.This lid 77 is a thin wall shape, shown in Fig. 6 (b), during from the front unilateral observation of auxiliary lid 70, it is made of lid body 77a and transition part 77b, wherein, lid body 77a clogs the major part of the front side of through hole 76, and this transition part 77b couples together the 76a of front side inner peripheral portion of lid body 77a and through hole 76.In addition, in the surperficial 22a side of the vertical seating surface 22 of frame 20, the position corresponding with this boss with cover 75 forms and accepts boss 29, accepts boss 29 and has the boss hole of acceptance 29a.

Usually, this through hole 76 is in by lid and stops up the state of living, to improve its aesthetic property.

Be not easy under the situation that relative frame 20 opens and closes wanting auxiliary lid 70 is fixed into, with lid 77 compressive strains with thin wall shape such as instrument, make through hole 76 expose the outside, insert screw this through hole 76 fastening from the front side, thus, can be fixed on screw fastener in the receiving orifice 76 of boss 29 of frame 20.

Usually, in order to assist the switching of lid 70, inside side pressure locking plate from the side makes itself and holding section 66 engagement release, just can more easily carry out this switching without instrument.For the auxiliary lid 70 that is not easy to open and close is provided, can damages lid 77 and be screwed on frame 20.Therefore, with an auxiliary lid 70, can select these two types of the type that just can open and close and opposite types of fixing with instrument without instrument.

In the above embodiment of the present invention, boss 26,29,57,64 and boss hole 26a, 29a, 57a, 64a constitute fixture.

Use in sewing machine Fig. 7 and Fig. 8 that the control box for sewing machine 10 that resembles above-mentioned this formation is housed represent.

Among the figure, the 1st, Sewing machines, the 2nd, the Sewing machines head, the 3rd, top is provided with the sewing machine table of Sewing machines head 2, the 4th, the food tray of outstanding configuration in sewing machine table 3 bottoms, the 5, the 6th, the selecting arrangement of Sewing machines, the 7th, pedal, 7a is a connecting rod, the 8th, control cabinet 10 is installed in bolt on the sewing machine table 3.

This control cabinet 10 is installed in the bottom of sewing machine table 3, and than aforementioned food tray 4 also near the rear (inboard) of sewing machine table, being equipped with in the bottom of food tray 4 is the pressure holding mechanism 5 of selecting arrangement.

Be configured in the place ahead of this control cabinet 10 as the pressure holding mechanism 5 of selecting arrangement, but, in this control cabinet 10, fulcrum 80,80 with the hinged body lid 50 of the pin- joint piece 71,71 of auxiliary lid 70 is located at from the medium line (dotted line N) of the width of the depth direction of the control cabinet 10 (inboard, rear to sewing machine table, Fig. 8 arrow Y direction), thereby, the position below also will leaning on, the track of auxiliary lid 70 upper ends when depicting auxiliary lid 70 and opening and closing than food tray 4 and pressure holding mechanism 5.

Thus, because the switching of auxiliary lid 70 can not run into the pressure holding mechanism 5 that is configured in auxiliary lid 70 the place aheads, becomes selecting arrangement, therefore the switching of lid 70 can be assisted sleekly, the maintenance of the connection of the various connectors in the control cabinet 10 and the operation of Sewing machines performance setting key etc. can be carried out.

According to the control cabinet 10 of the Sewing machines of such formation, reduced body lid 50 and before the radical of the screw of upper cover body 60 when being installed on the frame 20, can improve the operation of lid loading and unloading significantly.

For owing to Sewing machines drives the swing that causes, can suppress the wearing and tearing between body lid 50 and preceding upper cover body 60 and the frame 20, can prevent the generation of noise simultaneously.

Open and close when assisting lid 70, owing to be provided with locking plate 72,72, can install without instrument with opening and closing, simultaneously, have boss 75 with cover, thereby, screw is inserted in this boss 75 with cover, just can be fixed on auxiliary lid 70 usefulness screw fasteners on the frame 20, just can change without instrument with the lid switching condition of instrument with an auxiliary lid.Therefore, when selling, do not need to keep the stock of two types accessory cover just can easily carry out stock control.

Because body lid 50 usefulness are fixed with the screw 59 that sewing machine table 3 is screwed in the frame 20 abreast, thereby, when the circuit check of substrate 42 with sewing machine control circuit or power transformer 41 and these are set the maintenance of conversion etc., can confirm the position of the hold-down screw of body lid 50 from the rear side of Sewing machines, thereby, by pulling down this screw 59, just can easily pull down lid 50, control cabinet 10 is installed on the sewing machine table 3 same as before, just can carries out its operation.

In addition, owing to use the screw 65,65 that is screwed into abreast with Sewing machines board 3 that preceding upper cover body 60 is fixed on the frame 20, thereby, confirm its hold-down screw position easily, can obtain the effect same with above-mentioned body lid 50.

In addition, also can resemble shown in each variation of Fig. 9～Figure 11 constitute the body lid 50 of the control cabinet 10 in the foregoing description and the mounting structure of frame 20.

Body lid in Fig. 9～11 and frame are compared with the present embodiment that aforementioned Figure 11 is put down in writing respectively, have only the opening edge portion (peripheral part) of body lid shape, accept the shape difference of its frame, only different structures is explained, other dispenses.

In first variation of the mounting structure of frame shown in Figure 9 and body lid, when being installed in written or printed documents lid 100 on the frame 102, being located at projection (junction surface) 101 on the 100a of opening edge portion (peripheral part) of body lid 100 and being in and entering from the inboard of the upright edge portion (joint) 103 that establishes of the inside 102a of frame 102.At this state, in case just body lid 100 is fixed on the frame 102 by be screwed into screw 104 along the direction of arrow, the just flexibly crooked opening edge 100a of portion simultaneously of body lid 100 is just flexibly crooked outwardly, projection 101 is expansion outwardly, thereby is close to (dotted line among the figure) with the medial surface 103a of edge portion 103.At this moment, the upper end of edge portion 103 just is in tight state of contact with the opening edge portion that contacts with it.

In second variation shown in Figure 10, the junction surface 201 of the last formation of the 200a of opening edge portion (peripheral part) of body lid 200 コ word shape, when body lid 200 is installed on the frame 202, enter the opening at junction surface 201 of コ word shape of body lid 200 from the upright edge portion (joint) 203 that establishes of the inside 202a of frame 202, under this state, in case body lid 200 is fixed on the frame 202 by be screwed into screw 204 along the direction of arrow, the just flexibly crooked opening edge 200a of portion simultaneously of body lid 200 is just flexibly crooked outwardly, the junction surface 201 of コ word shape is expanded outwardly, thereby the inboard 203a of the tab 201a of the inboard at the junction surface 201 of コ word shape and edge portion 203 upper ends is close to (dotted line among the figure).

In variation shown in Figure 11, when being installed in body lid 300 on the frame 102, the last set projection (junction surface) 301 of the 300a of opening edge portion (peripheral part) of body lid 300 just is in the state that enters from the inboard of the upright slot part of establishing (joint) 303 of frame 302 the inside 302a.Under this state, by be screwed into screw 304 along the direction of arrow, body lid 300 is fixed on the frame 302, at this moment, body lid 300 flexibly is out of shape, and simultaneously, the 300a of opening edge portion is also towards foreign side's deflection, projection 301 is towards foreign side expansion, closely contacting with the medial surface of slot part 303 in (among the figure shown in the dotted line).

More than, control box for sewing machine of the present invention according to claim 1 record, if aforementioned lid is pulled down from the aforementioned framework portion that is fixed on the aforementioned sewing machine table bottom, also just can together pull down aforementioned auxiliary lid, pull down aforementioned cover from aforementioned frame, aforementioned frame is installed on the aforementioned sewing machine table, just can easily confirms aforementioned electric parts, just can improve the maintenance of this electric parts.

Control box for sewing machine of the present invention according to claim 2 record, keep or remove this hold mode by aforementioned maintaining body, just can carry out the switching or the loading and unloading of aforementioned auxiliary lid without the aforementioned fixation device, simultaneously, the lid of the aforementioned thin wall shape by crashing through the aforementioned fixation device, make aforementioned through hole expose the outside, securing member is inserted this through hole, cover at aforementioned auxiliary lid under the state of aforementioned other electric parts and just can be fixed on aforementioned lid on the aforementioned frame.

Control cabinet of the present invention according to claim 3 record, when aforementioned control cabinet side is depicted aforementioned auxiliary cover body opening/closing should auxiliary lid track, even the constituent part of Sewing machines is positioned at the front side of control cabinet, with different in the past, also can not make the shape of control cabinet itself very big, during aforementioned auxiliary cover body opening/closing, aforementioned auxiliary lid can not run into the constituent part of Sewing machines, opens the maintenance that aforementioned auxiliary lid just can easily be installed in the aforementioned electric parts on the aforementioned frame.

Control cabinet according to the Sewing machines of the present invention of claim 4 record, owing to be fixed for covering the lid of aforementioned electric parts set on the aforementioned frame by the aforementioned fixation device, thereby, when the inspection of carrying out aforementioned electric parts and exchange, by pulling down the aforementioned fixation parts, just can on aforementioned frame, easily remove lid, just can improve the operation of lid loading and unloading on aforementioned frame, and can improve the maintenance efficiency of operation of the aforementioned electric parts that is installed on the aforementioned frame.In addition, the mutual wearing and tearing that rub and cause of contact portion of aforementioned frame and aforementioned lid can be suppressed to make, simultaneously, the generation of noise can be prevented owing to the swing of Sewing machines.

Claims (4)

1, the control cabinet of Sewing machines, be installed in the bottom of sewing machine table, its inside is provided with the electric parts that is used to carry out Sewing machines control or driving, be provided with the Sewing machines head on the top of aforementioned sewing machine table, it is characterized by, also comprise: be fixed on aforementioned sewing machine table bottom and have the frame on plane vertically; Be installed in the aforementioned electric parts on this plane of vertical direction; By being fixed on the aforementioned frame to cover the lid of aforementioned electric parts, aforementioned lid can be installed on the aforementioned frame with freely loading and unloading, and auxiliary lid is located on the aforementioned lid free to rotately.

2, according to the control cabinet of the Sewing machines of claim 1 record, it is characterized by, aforementioned auxiliary lid has and is covering the maintaining body that keeps this auxiliary lid under the state of aforementioned other electric parts, can be fixed on fixture on the aforementioned frame to aforementioned auxiliary lid under the state that keeps by aforementioned maintaining body, the aforementioned fixation device is made of the lid of through hole and thin wall shape, aforementioned through hole forms on aforementioned auxiliary lid and can inject securing member, and the lid of aforementioned thin wall shape can stop up this through hole.

3, according to the control cabinet of the Sewing machines of claim 1 record, it is characterized by, but auxiliary lid by the articulated section freely openable be installed on the aforementioned lid, aforementioned articulated section is configured in from the position of the centre between the front and back of aforementioned control cabinet to rear side.

4, according to the control cabinet of the Sewing machines of claim 1 record, it is characterized by, by fixture aforementioned lid is fixed on the aforementioned frame, periphery at aforementioned lid is provided with the junction surface that engages with the joint, the joint is located on the aforementioned frame, under the junction surface of aforementioned lid and state that the joint of frame engages, by lid being pressed abd fixed on the frame by the aforementioned fixation device, the periphery of lid is flexibly crooked on the direction of intersecting with aforementioned compaction direction, and aforementioned junction surface is just fixed near the joint.

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