JP2007296098A - Sewing machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a sewing machine 1 which can be taken out of a package and carried for installation, handled for maintenance, safely and efficiently. <P>SOLUTION: A rotor case 11 is formed with a finger-grip means 20 so that a worker can handle a sewing machine 1 with his/her fingers. Specifically, in the rotor case 11, a rotor cover part 12 which is cylindrical and has a disk-like rotor 3 at an opening on the front end side so that it can freely rotate is formed in the rotor case 11, and a plurality of grooves 21 which is extended in the axial direction of the main shaft of a rotating section 2 are arranged circumferentially on the lower side of a wall surface in a peripheral wall 12c of the rotor cover part 12 as the finger-grip means 20. Furthermore, a hollow section 30 may be also formed in an end face cover part 13 of the rotor case 11 with the finger-grip means 20. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a sewing machine that is easy to handle such as unpacking and transporting at the time of installation and has a configuration for improving work efficiency.

  When a large sewing machine such as an industrial sewing machine is disposed, an operation of taking out the sewing machine from the unpacked package and placing it on the work table occurs. When the sewing machine is taken out from the package with the top cover opened, the operator moves fingers from both ends in the extending direction of the sewing machine, that is, from the front end side of the sewing machine where the so-called head part is located and from the rear end side where the rotating part is disposed. The sewing machine is lifted so as to hold the sewing machine at both ends.

  However, originally, the both end sides of the sewing machine main body are not configured or designed assuming that fingers are put on when lifting or carrying the sewing machine (see, for example, Patent Document 1). In particular, on the rear end side of the main body of the sewing machine, a disk-like rotating body of the rotating portion is rotatably disposed by a driving force transmitted from the driving portion, and workability is poor.

JP 2000-225282 A (FIG. 10)

  The present invention has been made paying attention to these problems, and an object of the present invention is to provide a sewing machine that can be efficiently taken out from a package at the time of installation, transported, and handled during maintenance.

  In order to achieve the above-described object, the sewing machine according to the present invention has a disk-shaped rotating body fitted to the tip of the sewing machine main shaft disposed on one end side of the sewing machine body case, and the sewing machine body case and the disk-shaped rotating body In the sewing machine in which the space between the two is covered with a rotating body case, the rotating body case is provided with a hand-holding means for an operator to handle the sewing machine with his / her fingers. To do.

  The rotating body in the present invention includes both a pulley for converting belt travel into rotation of the main shaft and a flywheel for smoothing fluctuations in 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 his / her fingers on the hand-holding means formed on the rotating body case. . Even when the sewing machine main body is tilted backward during maintenance of the sewing machine and the bottom surface of the sewing machine main body is exposed above the work table, the sewing machine can be easily formed by forming a hand-holding means on the rotating body case. Can be handled.

  Specifically, the rotating body case is formed with a cylindrical rotating body cover portion in which a disk-shaped rotating body is rotatably disposed at the front end side opening, and a lower wall surface of the peripheral wall of the rotating body cover portion is formed on the lower wall surface. A finger hooking means is formed in which a plurality of grooves extending in parallel with the axial direction of the main shaft are arranged in the circumferential direction.

  The sewing machine of the present invention having such a configuration prevents the plurality of grooves formed in the lower wall surface of the peripheral wall of the rotating body cover portion from slipping when the operator places his / her finger on the finger. Therefore, the sewing machine can be handled easily.

  In addition, a cylindrical rotating body cover portion is provided in the rotating body case so that a disk-shaped rotating body is rotatably disposed at the front end side opening, and a notch is formed in a lower side wall portion of the peripheral wall of the rotating body cover portion. You may form the hand-holding means comprised from the recessed part made.

  The rotating body case is formed with a cylindrical rotating body cover portion in which a disc-shaped rotating body is rotatably disposed in the opening on the front end side, and the lower wall portion of the peripheral wall of the rotating body cover portion is circumferentially arranged. You may form the finger hook means comprised from the convex-shaped stripe part extended.

  Furthermore, an end surface cover portion that covers the outside of the region covered by the rotating body cover portion at the one end of the sewing machine body is formed on the rotating body case.

  The sewing machine of the present invention having such a configuration can cover and protect the region other than the rotating portion forming region at one end of the sewing machine body by the end surface cover portion.

  Still further, the base end side opening portion in the peripheral wall of the rotating body cover portion in which the finger-holding means is formed on the tip side portion of the inclined surface whose surface is depressed in the end surface cover portion and gradually increases in depth as it extends upward. Forming a ridge portion connected to the.

  In the sewing machine according to the present invention in which such a bend portion is formed, it is possible to form a large axial dimension of the main shaft in the peripheral wall portion of the rotating body cover portion in which the finger hook portion is formed by the bend portion. As a result, a wide contact area of fingers can be secured and the sewing machine can be handled easily.

  As described above, the sewing machine of the present invention can efficiently perform handling operations such as unpacking and transportation during installation.

  First to fifth embodiments of the sewing machine of the present invention will be described with reference to FIGS. 1 to 13. Below, only the exterior structure around the rotating part in the sewing machine 1, which is the main part of the present invention, will be described. Other components of the sewing machine that are not particularly mentioned are conventionally known configurations.

  1 to 4 are diagrams for explaining a first embodiment of a sewing machine 1 according to the present invention. FIG. 1 is a front view showing a configuration of a main part of the sewing machine according to the present embodiment. FIG. 2 is a right perspective view of FIG. It is. 3 is a right side view of the rotating body case, and FIG. 4 is a cross-sectional view taken along line AA in FIG.

  The rotating portion 2 of the sewing machine 1 of the present embodiment extends a sewing machine main shaft (not shown) that is rotatably supported by a driving force transmitted from a driving source (not shown) in the sewing machine body case 10 in the horizontal direction. The flywheel 3 as a disc-like rotating body fitted to the tip of the sewing machine main shaft is connected to one end side of the sewing machine body case 10, specifically, the connecting cylinder for connecting the arm part 4 of the sewing machine 1 and the sewing machine table 5. It is pivotally supported on the end wall of the portion 6. In the sewing machine 1 according to the present embodiment, the space between the sewing machine main body case 10 and the flywheel 3 is formed with hand-fitting means 20 for the operator to handle the sewing machine 1 with his / her fingers. The end wall on one end side of the sewing machine main body case 10 is covered with a rotating body case 11 fixed by fixing means 8 such as screws.

  The rotating body case 11 has a substantially cylindrical shape extending in the axial direction of the main shaft of the rotating portion 2, and the outer peripheral portion of the flywheel 3 of the rotating portion 2 is positioned at the distal end side opening portion 12 a while being rotatably arranged. The rotating body cover portion 12 that covers the components of the rotating portion 2 disposed outside the one end side of the sewing machine body case 10 and the proximal end side opening portion 12b of the rotating body cover portion 12 are connected to each other. The main body case 10 includes a flat-plate-like end surface cover portion 13 that covers the outside of the region covered by the rotating body cover portion 12 at the one end portion.

  The lower wall surface of the peripheral wall 12c of the rotating body cover portion 12 extends in the axial direction of the main shaft, that is, in the height direction of the cylindrical rotating body cover portion 12, and is arranged in a plurality in the circumferential direction. A groove 21 is formed as the finger-holding means 20.

  The sewing machine 1 according to the present embodiment in which such a hand-holding means 20 is formed on the rotating body case 11 is provided on the peripheral wall of the rotating body cover portion 12 when an operator places his / her finger on the hand-holding means 20. A plurality of grooves 21 formed on the lower wall surface act as a slip stopper. Therefore, the sewing machine 1 can be easily handled.

  Further, the end surface cover portion 13 makes it possible to construct the sewing machine 1 other than the rotating portion 2 disposed at one end of the sewing machine body case 10, for example, a feed lever shaft (not shown) instructed to be rotatable, and one end. The reverse feed lever 7 whose side is fixed to the feed lever shaft, and a spring (not shown) that biases one end of the reverse feed lever (hereinafter referred to as a feed reverse mechanism) can be covered and protected.

  5 to 7 are diagrams for explaining a second embodiment of the sewing machine 1 according to the present invention. FIG. 5 is a right side perspective view of the sewing machine 1 of the present embodiment, which corresponds to FIG. 2 in the first embodiment. is there. 6 is a right side view of the rotator case 11 corresponding to FIG. 3 in the first embodiment, and FIG. 7 is a sectional view taken along line BB in FIG. 6 corresponding to FIG. 4 in the first embodiment. is there.

  The difference between the sewing machine 1 of the present embodiment and the first embodiment will be described. The rotating body case 11 of the present embodiment has a semi-cone-shaped surface (main surface) 13a on the end surface cover portion 13. The beveled portion 30 is formed in the proximal end side opening portion 12b of the peripheral wall 12c of the rotating body cover portion 12 in which the groove portion 21 is formed as the finger hanging means 20 is formed. And the front end side part of the curved part which consists of a slope which increases a depth gradually as it goes upwards is connected.

  As described above, the sewing machine 1 according to the present embodiment in which the turn part 30 is formed on the rotating body case 11 has the above-described finger hanging means 20 by the turn part 30 in addition to the function and effect of the sewing machine 1 according to the first embodiment. Since the axial dimension of the main shaft in the peripheral wall 12c portion of the rotating body cover portion 12 in which a plurality of grooves 21 are formed can be further increased, the contact area of the fingers can be secured wide and the sewing machine 1 can be handled. Can be made easy.

  Further, the end surface cover portion 13 covers a structural member of the sewing machine 1 other than the rotating portion 2 disposed at one end portion of the sewing machine body case 10, such as a feed reversing mechanism (an operation lever is denoted by reference numeral 7). Can be protected.

  8 and 9 are drawings for explaining a third embodiment of the sewing machine 1 according to the present invention, and FIG. 8 shows a configuration of a main part of the sewing machine 1 of the present embodiment corresponding to FIG. 1 in the first embodiment. FIG. 9 is a right side perspective view of the sewing machine 1 of the present embodiment, which corresponds to FIG. 2 of the first embodiment and FIG. 5 of the second embodiment.

  Only the differences between the sewing machine 1 of the present embodiment and the first embodiment will be described. The sewing machine 1 of the present embodiment is cut into a circular arc in the lower wall portion of the peripheral wall 12c of the rotating body cover portion 12. A notched recess 22 is formed as the finger holding means 20.

  The end face cover 13 connects the flat first cover 13a that covers the feed reverse mechanism (the operation lever is indicated by reference numeral 7), the first cover 13a, and the rotating body cover 12. The second cover portion 13b is formed with an inclined surface.

  The sewing machine 1 according to the present invention in which the hand-holding means 20 is formed on the rotating body case 11 is provided on the peripheral wall 12c of the rotating body cover portion 12 when an operator places his / her finger on the hand-holding means 20. Fingers can be locked in the recesses 22 formed in the lower wall portion. Therefore, the sewing machine 1 can be easily handled.

  And the end surface cover part 13 connected to the rotating body cover part 12 is formed on the inclined surface to form the second cover part 13b, so that the end surface cover part 13 has the same dimensions as the first cover part 3 and one end of the sewing machine body. The axial dimension of the main shaft in the peripheral wall 12c portion of the rotating body cover portion 12 in which the concave portion 22 as the finger-holding means 20 is formed can be made larger than that formed in a flat plate shape by projecting to the side. Therefore, it is possible to secure a wide contact area of fingers and facilitate handling of the sewing machine 1.

  Further, the end surface cover portion 13 covers a structural member of the sewing machine 1 other than the rotating portion 2 disposed at one end portion of the sewing machine body case 10, such as a feed reversing mechanism (an operation lever is denoted by reference numeral 7). Can be protected.

  10 and 11 are diagrams for explaining a fourth embodiment of the sewing machine 1 according to the present invention. FIG. 10 corresponds to FIG. 8 in the third embodiment, and is a front view of a part of the sewing machine 1 of the present embodiment. FIG. 11 is a right perspective view of FIG. 10 corresponding to FIG. 9 in the third embodiment.

  When only the difference from the above-described third embodiment is described for the sewing machine 1 of the present embodiment, the second cover portion 13b of the end surface cover portion 13 of the rotating body case 11 of the present embodiment has the surface depressed, A bend portion in which the tip side portion of the slope that gradually increases in depth as it goes upward is connected to the proximal end side opening portion 12c in the peripheral wall 12a of the rotating body cover portion 12 in which the concave portion 22 as the finger hooking means 20 is formed. 30 is formed.

  As described above, the sewing machine 1 according to the present embodiment in which the rotating portion 30 is formed in the rotating body case 11 has the peripheral wall of the rotating body cover portion 12 in which the recessed portion 22 is formed as the finger gripping means 20 by the turning portion 30. Since the axial dimension of the main shaft in the portion 12c can be made larger than that of the sewing machine 1 of the third embodiment described above, it is possible to secure a wider finger contact area and to easily handle the sewing machine 1. can do.

  Further, the end surface cover portion 13 covers a structural member of the sewing machine 1 other than the rotating portion 2 disposed at one end portion of the sewing machine body case 10, such as a feed reversing mechanism (an operation lever is denoted by reference numeral 7). Can be protected.

  12 and 13 are diagrams for explaining a fifth embodiment of the sewing machine 1 according to the present invention. FIG. 12 corresponds to FIG. 8 in the third embodiment, and is a main part of the sewing machine 1 of the present embodiment. FIG. 13 is a right perspective view of FIG. 12, corresponding to FIG. 9 in the third embodiment.

  The difference between the sewing machine 1 of the present embodiment and the third embodiment will be described. The rotating body case 11 of the present embodiment is arranged on the lower side wall portion of the peripheral wall 12c of the rotating body cover portion 12 in the circumferential direction. Convex streaks 23 extending in the direction are formed.

  The end surface cover 13 connects the flat first cover 13a that covers the feed reverse mechanism (the operation lever is denoted by reference numeral 7), the first cover 13a, and the rotating body cover 12. The second cover portion 13b is formed on a gentle slope.

  Also in the sewing machine 1 of the present invention having such a configuration, when the operator puts his / her finger on the finger hooking means 20, the convex formed on the lower wall portion of the peripheral wall 12 c of the rotating body cover portion 12. Since the fingers can be locked to the streak portion 23, the sewing machine 1 can be handled easily.

  The end surface cover portion 13 connected to the rotating body cover portion 12 is formed on a gentle slope to form the second cover portion 13b, so that the end surface cover portion 13 has the same dimensions as the first cover portion 3a and the sewing machine body. The axial dimension of the main shaft is formed larger in the peripheral wall 12c portion of the rotating body cover portion 12 where the convex streak portion 23 is formed as the finger-hanging means 20, rather than being formed in a flat table shape by projecting to one end side. can do. Therefore, it is possible to secure a wide contact area of fingers and facilitate handling of the sewing machine 1. Further, the end surface cover portion 13 covers a constituent member of the sewing machine 1 other than the rotating portion 2 disposed at one end portion of the sewing machine body case 10, such as a hand movement direction reversing mechanism (the operation lever is indicated by reference numeral 7). And can be protected.

  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 body case 10 and is fixed to the sewing machine main body case 10 using fixing means. 11 may be formed integrally with the sewing machine main body case 10.

  In the first, third, and fifth embodiments, the end surface cover portion 13 of the rotator case 11 may be omitted, and the rotator case 11 having only the rotator cover portion 12 may be provided.

  Further, the finger holding means 20 may be configured to prevent finger slipping, and is not limited to the configuration of each of the embodiments described above. For example, a mesh-like cut pattern may be formed on the lower side wall portion of the peripheral wall 12c of the rotating body cover portion 12.

  Further, the place where the hand holding means 20 is formed is not limited to the lower wall portion of the rotating body cover portion 12. For example, you may form in the perimeter of the surrounding wall 12c of the rotary body cover part 12. FIG. If it is formed on the entire circumference, when performing a maintenance work by tilting the sewing machine main body backward and exposing the bottom surface of the sewing machine main body to the upper side of the work table, Since the means 20 acts as an anti-slip, it is possible to obtain effects such as easy maintenance work. Further, the shape of the turning portion 30 is not limited to the semi-cone shape as described above.

The front view which shows the principal part structure of 1st Embodiment of the sewing machine of this invention. 1 is a right perspective view of the sewing machine of FIG. The right side view of the rotating body case of the sewing machine of FIG. AA sectional view of the rotating body case of the sewing machine of FIG. The right side perspective view of the sewing machine of a 2nd embodiment of the sewing machine of the present invention. 5 is a right side view of the rotating body case of the sewing machine of FIG. BB sectional drawing of the rotary body case of the sewing machine of FIG. The front view which shows the principal part structure of 3rd Embodiment of the sewing machine of this invention. The right perspective view of the sewing machine of FIG. The front view which shows the principal part structure of 4th Embodiment of the sewing machine of this invention. The right perspective view of the sewing machine of FIG. The front view which shows the principal part structure of 5th Embodiment of the sewing machine of this invention. The right perspective view of the sewing machine of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Sewing machine 2 Rotating part 3 Handwheel 4 Arm part 5 Table 6 Connecting body part 7 Reverse lever 8 Fixing means 10 Sewing machine case 11 Rotating body case 12 Rotating body cover part 12a Front end side opening part 12b Base end side opening part 12c Peripheral wall 13 End Part cover part 13 Main surface 20 Fingering means 21 Groove 22 Concave part 23 Convex streak part 30 Bent part

Claims (6)

A disk-shaped rotating body fitted to the tip of the sewing machine main shaft is disposed on one end side of the sewing machine main body case, and a space between the sewing machine main body case and the disk-shaped rotating body is covered with the rotating body case. In the sewing machine
The sewing machine according to claim 1, wherein the rotating body case is provided with a finger hooking means for an operator to handle the sewing machine with a finger. The rotating body case is formed with a cylindrical rotating body cover portion in which a disk-shaped rotating body is rotatably disposed in the front end side opening, and the lower wall surface of the peripheral wall of the rotating body cover portion is provided with the 2. The sewing machine according to claim 1, further comprising a finger hooking means in which a plurality of grooves extending in parallel with the axial direction of the main shaft are arranged in the circumferential direction. The rotating body case is formed with a cylindrical rotating body cover portion in which a disk-shaped rotating body is rotatably disposed in a front end side opening, and a notch is formed in a lower wall portion of a peripheral wall of the rotating body cover portion. The sewing machine according to claim 1, wherein a finger hooking means including a formed recess is formed. The rotating body case is formed with a cylindrical rotating body cover portion in which a disk-shaped rotating body is rotatably disposed in a front end side opening, and a peripheral wall of the rotating body cover portion is provided with a peripheral wall. The sewing machine according to claim 1, further comprising a finger hooking means formed of a convex streak portion extending in a direction. The end face cover portion that covers the outside of the region covered by the rotary body cover portion at the one end portion of the sewing machine body is formed in the rotary body case. The sewing machine according to Item. In the end surface cover portion, the front end side portion of the inclined surface whose surface is depressed and is gradually increased in depth is formed at the proximal end side opening portion in the peripheral wall of the rotating body cover portion on which the finger hanging means is formed. The sewing machine according to claim 5, wherein a linked portion is formed.

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