KR101339141B1 - Sewing machine - Google Patents

Abstract

Provided is a sewing machine (1) capable of safely and efficiently carrying out and transporting a package from installation and handling and maintenance.

On the rotating body case 11, the operator places a finger and forms a finger engaging portion 20 for handling the sewing machine 1. Specifically, the rotor case 11 is formed in a cylindrical shape, and a rotor cover 12 for rotatably disposing the rotor 3 in the tip side opening portion is formed, and the rotor cover portion ( A plurality of grooves 21 extending in the axial direction of the main shaft of the rotating part 2 are formed on the lower wall surface of the circumferential wall 12c of 12) so as to be arranged in the circumferential direction, so that the finger engaging portion 20 is formed. In addition, the cutting part 30 may be formed in the end surface cover part 13 of the rotating body case 11 with the finger catching part 20.

Description

[0001] SEWING MACHINE [0002]

BRIEF DESCRIPTION OF THE DRAWINGS It is a front view which shows the structure of the principal part of 1st Embodiment of the sewing machine which concerns on this invention.

2 is a right perspective view of the sewing machine shown in FIG.

3 is a right side view of the rotating body case of the sewing machine shown in FIG.

4 is a cross-sectional view taken along line A-A of the rotating body case of the sewing machine shown in FIG.

5 is a right perspective view of the sewing machine according to the second embodiment of the present invention.

6 is a right side view of the rotating body case of the sewing machine shown in FIG.

7 is a cross-sectional view taken along line B-B of the rotating body case of the sewing machine shown in FIG.

It is a front view which shows the structure of the principal part of 3rd Embodiment of the sewing machine which concerns on this invention.

9 is a right perspective view of the sewing machine shown in FIG. 8.

It is a front view which shows the structure of the principal part of 4th Embodiment of the sewing machine which concerns on this invention.

11 is a right perspective view of the sewing machine shown in FIG. 10.

It is a front view which shows the structure of the principal part of 5th Embodiment of the sewing machine which concerns on this invention.

13 is a right perspective view of the sewing machine shown in FIG.

Description of the Related Art [0002]

1: sewing machine 2: rotating part

3: flywheel 4: arm part

5: Table 6: Connecting Body

7: reversing lever 8: fixing means

10: sewing machine body frame 11: rotating body case

12: rotor cover 12a: tip side opening

12b: base end opening 12c: circumferential wall

13: end cover portion 13: main surface

20: finger catch 21: groove

22 concave portion 23 convex band portion

30: cutting part

This invention relates to the sewing machine provided with the structure for easy handling, such as taking out and carrying out from the package at the time of installation, and improving work efficiency.

When installing a large sewing machine, such as an industrial sewing machine, the operation takes out the sewing machine from the opened package and puts it on the workbench. And when taking out a sewing machine from the package which opened the upper cover, an operator touches a finger from both ends of the extension direction of a sewing machine, ie, the front end side of the sewing machine in which a so-called head part is located, and the rear end side in which a rotating part is arrange | positioned, Lifting is performed by holding on both ends.

However, the two ends of the sewing machine main body are not originally configured or designed to assume a finger when lifting or transporting the sewing machine (see Patent Document 1, for example). In particular, on the rear end side of the sewing machine main body, the disk-shaped rotating body of the rotating part was rotatably provided by the driving force transmitted from the driving part, and the workability was bad.

[Patent Document 1] Japanese Patent Laid-Open No. 2000-225282 (Fig. 10)

The present invention has been made in view of the above problems, and an object thereof is to provide a sewing machine which can efficiently take out and transport from a package at the time of installation and efficiently handle the maintenance.

In order to achieve the above object, the sewing machine of the present invention is provided with a disk-shaped flywheel 3 fitted to the distal end of the sewing machine main shaft at one end of the sewing machine main frame, and the sewing machine main frame ( 10. A sewing machine formed by covering a space between a rotor and a rotor with a rotor case 11, wherein a cylindrical rotor cover 12 for rotatably disposing the rotor is formed in the rotor case. A finger catching part 20 for handling an sewing machine with a finger on a rotating body cover part is formed.

In addition, the rotating body in the present invention includes a pulley for converting the running of the belt to rotation of the main shaft, a flywheel for smoothing the fluctuation of the torque for rotating the main shaft.

The sewing machine of the present invention having such a configuration can facilitate handling of the sewing machine by allowing the operator to place a finger on a finger engaging portion formed in the rotating body case. In addition, in the case of maintenance of the sewing machine, even when the sewing machine main body is laid at an angle to the rear side and the bottom surface of the sewing machine main body is exposed to the upper side of the work table, a finger catching part is formed on the rotating body case, so that the sewing machine can be easily handled. There is a number.

Specifically, a finger engaging portion in which a plurality of grooves extending in parallel with the axial direction of the main shaft are arranged in the circumferential direction is formed on the lower wall surface of the circumferential wall of the rotating body cover portion.

The sewing machine of the present invention having such a configuration has a function of preventing sliding of a plurality of grooves formed on the lower wall surface of the circumferential wall of the rotating body cover part when an operator touches a finger on a finger engaging portion. It is easy to handle the sewing machine.

Further, in the rotor case, a cylindrical rotor cover portion for rotatably arranging the rotor in the tip side opening portion is formed, and the recessed portion cut out is formed in the lower wall portion of the circumferential wall of the rotor cover portion. You may form the finger engaging part which becomes.

A convex extending in the circumferential direction is formed in the rotor case, wherein a cylindrical rotor cover portion for rotatably arranging the rotor in the tip side opening portion is formed, and the lower wall portion in the peripheral wall of the rotor cover portion is formed. You may form the finger engaging part comprised from the shape band part.

Further, a cross section cover portion is formed in the rotor case to cover a portion other than the area covered by the rotor cover portion at the one end of the sewing machine main body.

The sewing machine of this invention provided with such a structure can protect by covering the area | region other than the rotation part formation area in the one end part of the sewing machine main body by the said end surface cover part.

The base end side of the end face portion of the inclined surface in which the surface is recessed and the depth increases gradually toward the base end portion in the circumferential wall of the rotating body cover portion in which the finger engaging portion is formed. Iii) A cutting portion joined to the opening is formed.

The sewing machine of the present invention having such a cutting portion can form a large axial size of the main shaft in the circumferential wall portion of the rotating body cover portion in which the finger engaging portion is formed by the cutting portion. By ensuring a wide, it becomes easy to handle the sewing machine.

EMBODIMENT OF THE INVENTION Hereinafter, 1st thru | or 5th embodiment of the sewing machine which concerns on this invention is described, referring FIGS. Here, only the exterior structure around the rotating part 2 of the sewing machine 1 which is a main part of this invention is demonstrated. Other components of the sewing machine not specifically mentioned are considered to be conventionally known configurations.

In the sewing machine main frame 10, a sewing machine main shaft (not shown) is rotatably supported by a driving force transmitted from a driving source (not shown).

The rotary part 2 of this embodiment connects the flywheel 3 as a disk-shaped rotary body fitted to the front-end | tip of the said sewing machine main shaft, and connects the arm part 4 of the sewing machine 1, and the sewing machine table 5 to it. It is axially supported by the end wall of the connecting body part 6. In addition, the space part between the sewing machine main frame 10 and the flywheel 3 is a rotary case 11 fixed to the end wall of one end side of the sewing machine main frame 10 by fixing means 8 such as a screw. ) Is covered. In the rotating body case 11, a finger catching part 20 for handling a sewing machine 1 with a user's finger is formed at a lower portion thereof.

The rotating body case 11 is formed in a substantially cylindrical shape extending in the axial direction of the main shaft of the rotating part 2, by positioning the outer peripheral portion of the flywheel 3 of the rotating part 2 in the front end side opening (12a) , The rotatable cover portion 12 covering the components of the rotating portion 2 provided on one end side of the sewing machine body frame 10 while being rotatably disposed, and the rotatable cover portion 12. A flat table-shaped cross-sectional cover portion which is in contact with the base end opening 12b and covers a portion other than the covered area by the rotating body cover portion 12 at the one end of the sewing machine main frame 10. It consists of 13.

The lower wall surface of the circumferential wall 12c of the rotor cover 12 extends in the axial direction of the main shaft, that is, in the height direction of the cylindrical rotor cover 12, and is arranged in the circumferential direction. A plurality of grooves 21 are formed as the finger engaging portion 20.

The sewing machine 1 of this embodiment in which such a finger catching part 20 is formed in the rotating body case 11 has the said rotating body cover part 12 when an operator touches the finger to the finger catching part 20. FIG. The plurality of grooves 21 formed on the lower wall surface in the circumferential wall of) act as an anti-slip. Therefore, the handling of the sewing machine 1 can be made easy.

Further, by the end face cover 13, a component of the sewing machine 1 other than the rotating part 2 provided at one end of the sewing machine main frame 10, for example, a feed lever shaft rotatably supported (not shown). And a reverse feed lever 7 whose one end is fixed to the feed lever shaft, and a spring (not shown, hereinafter referred to as a "feed reverse mechanism") that applies a force to one end of the reverse feed lever. Can be protected.

Next, 2nd Embodiment of the sewing machine 1 which concerns on this invention is described, referring FIGS.

About 2nd Embodiment, only a difference with 1st Embodiment mentioned above is demonstrated. The rotating body case 11 has a cutout portion 30 having a curved portion that recesses the surface 13a (main surface) in a shape cut in half in the cross-section cover portion 13 and increases its depth toward the upper portion. Formed. A plurality of grooves 21 serving as finger engaging portions 20 are formed at portions facing the cutting portion 30 of the rotor cover 12. A base end 12b positioned below the circumferential wall 12c of the rotor cover 12 extends into the cutting portion 30.

Thus, the sewing machine 1 of the 2nd embodiment in which the cutting part 30 was formed in the rotating body case 11 has the said cutting part 30 in addition to the action and effect of the sewing machine 1 of 1st Embodiment mentioned above. ), The axial size of the main shaft in the portion of the circumferential wall 12c of the rotating body cover portion 12 in which the plurality of grooves 21 serving as the finger engaging portion 20 are formed can be made larger. Therefore, the contact area of the finger can be secured to be wide, and the handling of the sewing machine 1 can be facilitated.

In addition, the end face cover portion 13 denotes a constituent member of the sewing machine 1 other than the rotating part 2 provided at one end of the sewing machine main frame 10, for example, a transfer reversing mechanism (operation lever). ) And the like can be protected.

Next, a third embodiment will be described with reference to FIGS. 8 and 9.

When only the difference with 1st Embodiment mentioned above is demonstrated about the sewing machine 1 of 3rd Embodiment, a cross section has an arc shape in the lower wall part in the circumferential wall 12c of the rotating body cover part 12. The recessed part 22 cut out so that it may form is formed as the said finger engaging part 20. As shown in FIG.

Further, the end face cover portion 13 includes a first cover portion 13a having a flat shape covering the transfer reversal mechanism (indicated by reference numeral 7), the first cover portion 13a, and a rotating body. It is comprised by the 2nd cover part 13b formed in the inclined surface which makes the cover part 12 connect.

The sewing machine 1 of the present invention in which such a finger catching part 20 is formed on the rotating body case 11 has the rotating body cover part 12 when an operator touches a finger on the finger catching part 20. A finger can be applied to the recessed part 22 cut out in the lower wall part in the circumferential wall 12c. Therefore, the handling of the sewing machine 1 can be made easy.

Then, by forming the end face cover portion 13 connected to the rotating body cover portion 12 to the inclined surface to form the second cover portion 13b, the end face cover portion 13 is the same as the first cover portion 13a. In the circumferential wall 12c portion of the rotating body cover portion 12 in which the concave portion 22 as the finger engaging portion 20 is formed, as compared with protruding to one end side of the sewing machine main body in a size to form a flat table shape. Can increase the axial size of the main axis. Therefore, the contact area of the finger can be secured wide, and the handling of the sewing machine 1 can be facilitated.

In addition, the end face cover portion 13 denotes a constituent member of the sewing machine 1 other than the rotating part 2 provided at one end of the sewing machine main frame 10, for example, a transfer reversing mechanism (operation lever). ) And the like can be protected.

Next, a fourth embodiment will be described with reference to FIGS. 10 and 11.

In the fourth embodiment, only the differences from the above-described third embodiment will be described. The second cover portion 13b in the end face cover portion 13 of the rotating body case 11 faces the surface upward. The cutting part 30 which recessed so that the depth may increase gradually is formed. The recessed part 22 as a finger engaging part 20 is formed in the lower part of the rotating body cover part 12.

Thus, the sewing machine 1 of 4th Embodiment in which the cutting part 30 was formed in the rotating body case 11 is the recessed part 22 as the said finger engagement part 20 by the said cutting part 30. As shown in FIG. Since the axial size of the main shaft in the portion of the circumferential wall 12c of the rotating body cover portion 12 is larger than that of the sewing machine 1 of the above-described third embodiment, The contact area can be more secured, and the handling of the sewing machine 1 can be facilitated.

In addition, the end face cover portion 13 denotes a constituent member of the sewing machine 1 other than the rotating part 2 provided at one end of the sewing machine main frame 10, for example, a transfer reversing mechanism (operation lever). ) And the like can be protected.

And 5th Embodiment is described, referring FIG. 12 and FIG.

When only the difference with 3rd Embodiment mentioned above is demonstrated about the sewing machine 1 of this embodiment, the rotating body case 11 of this embodiment is the peripheral wall 12c of the said rotating body cover part 12. The convex band part 23 extended in the circumferential direction is formed in the lower wall part in the inside.

Further, the end face cover portion 13 includes a first cover portion 13a having a flat shape covering the transfer reversal mechanism (indicated by reference numeral 7), the first cover portion 13a, and a rotating body. The cover part 12 is connected, and it is comprised by the 2nd cover part 13b formed in the gentle inclined surface.

Also in the sewing machine 1 of this invention provided with such a structure, when an operator touches a finger to the finger catching part 20, the lower side in the circumferential wall 12c of the said rotating body cover part 12 is carried out. Since the finger can be hooked to the convex band 23 formed on the wall, the handling of the sewing machine 1 can be facilitated.

And the end cover part 13 connected to the rotating body cover part 12 is formed in the gentle inclined surface, and it is set as the 2nd cover part 13b, and the end cover part 13 is made into the said 1st cover part 13a. The circumferential wall 12c of the rotating body cover portion 12 in which the convex band portion 23 as the finger catching portion 20 is formed, as compared to protruding to one end side of the sewing machine body in the same size as the flat table shape. The axial size of the said main shaft in a part can be formed large. Therefore, the contact area of the finger can be secured wide, and the handling of the sewing machine 1 can be facilitated. In addition, by the end face cover 13, constituent members of the sewing machine 1 other than the rotating part 2 provided at one end of the sewing machine main frame 10, for example, the needle movement direction reversing mechanism (operation lever at 7). Display), etc., to protect.

In addition, this invention is not limited to embodiment mentioned above, A various change is possible as needed.

For example, in the above-described embodiment, the rotating body case 11 is formed separately from the sewing machine main frame 10, and is fixed to the sewing machine main frame 10 by using fixing means. The rotary body case 11 may be formed integrally with the sewing machine body frame 10.

In addition, in 1st, 3rd, and 5th embodiment, the end surface cover part 13 of the rotating body case 11 is abbreviate | omitted, and it is set as the rotating body case 11 of the structure which consists only of the rotating body cover part 12. As shown in FIG. It is also possible.

In addition, the finger catching part 20 should just be a structure which can prevent the slipping of a finger, and is not limited to the structure of each embodiment mentioned above. For example, you may take an aspect, such as forming a notch of a mesh shape in the lower wall part in the circumferential wall 12c of the said rotating body cover part 12. FIG.

In addition, the formation part of the finger catching part 20 is not limited to the lower wall part of the rotating body cover part 12, either. For example, you may form in the whole periphery of the circumferential wall 12c of the rotating body cover part 12. FIG. When formed around the entire circumference, the finger catches when the finger is placed on the rotating part 2 in the case of performing maintenance work by laying the sewing machine main body obliquely to the rear and exposing the bottom surface of the sewing machine main body to the upper side of the work table. Since the part 20 has an anti-slip action, it is possible to obtain an effect such as easy maintenance work. In addition, the shape of the cutting part 30 is not limited to the shape which cut air in half as mentioned above.

Thus, according to the sewing machine of the present invention, handling operations such as taking out and transporting from the package at the time of installation or the like can be efficiently performed.

Claims (6)

A sewing machine comprising a rotating body fitted to a leading end of a sewing machine main shaft at one end of a sewing machine main frame and covering a space between the sewing machine main frame and the rotating body with a rotating body case, The rotating body case has a cylindrical rotating body cover portion for rotatably arranging the rotating body on the front end side, and the rotating body cover portion is provided with a finger engaging portion for handling the sewing machine by the operator. The sewing machine characterized by the above. The method according to claim 1, The rotating body case is provided with a finger engaging portion in which a plurality of grooves extending in parallel with the axial direction of the main shaft are arranged in the circumferential direction on a lower wall surface of the circumferential wall of the rotating body cover portion. . The method according to claim 1, The rotating body case is provided with a cylindrical rotating body cover portion for rotatably arranging the rotating body in the front end side opening portion, and a finger engaging constituted by a recess formed by cutting a lower wall portion in the circumferential wall of the rotating body cover portion. Sewing machine characterized in that the additional portion is formed. The method according to claim 1, The rotating body case has a cylindrical rotating body cover portion for rotatably arranging the rotating body in a front end side opening portion, and a convex band portion extending in the circumferential direction on the lower wall portion in the peripheral wall of the rotating body cover portion. A sewing machine comprising a finger engaging portion formed of a back portion. 5. The method according to any one of claims 2 to 4, The said rotating body case is provided with the end surface cover part which coats parts other than the area | region covered by the said rotating body cover part in the said one end part of the sewing machine main body, The sewing machine characterized by the above-mentioned. 6. The method of claim 5, The end face portion of the end face of the inclined surface whose surface is recessed and whose depth increases toward the upper side is connected to the base end opening in the circumferential wall of the rotating body cover portion in which the finger engaging portion is formed. Sewing machine characterized in that the cutting portion is formed.

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