JP4981334B2 - Embroidery sewing machine - Google Patents

Description

  The present invention relates to an embroidery sewing machine having an emergency stop switch for stopping the sewing machine in an emergency.

  Conventionally, as shown in FIGS. 4 and 5, in an embroidery sewing machine provided with an emergency stop switch 57, a switch body 56 is attached to the front surface of a bridge 51 of the embroidery sewing machine using a bracket 55. The emergency stop switch 57 needs to be easy to visually recognize and operate because of the nature used in an emergency. Since the emergency stop switch 57 conforms to the CE standard, it is necessary to install the emergency stop switch 57 at a position that can be reached by the operator in consideration of the movement range of the sewing frame 53. Therefore, when the moving range of the sewing frame 53 is large, it is necessary to use an extended bracket 55 as shown in FIGS. 4 and 5B.

Although not an invention relating to an emergency stop switch, there is also an embroidery sewing machine in which a sewing frame stop switch or the like is arranged on the lower surface of the front end portion of the table in consideration of the convenience of the operator. (Patent Document 1)
JP 2005-198814 A

  When performing operations such as threading, the operator may use the emergency stop switch on the operator's head or on his / her arm for the convenience of moving the sewing frame backward and close to the sewing head. Workability is poor.

  In addition, since the operator performs monitoring and the like on the front surface of the embroidery sewing machine while the embroidery sewing machine is operating, depending on the position where the emergency stop switch is installed, it is difficult to visually recognize and operate the emergency stop switch. Personality problems arise.

  Accordingly, an object of the present invention is to provide an embroidery sewing machine having an emergency stop switch that has good workability such as threading.

In order to achieve the above object, the embroidery sewing machine of the present invention is provided with an emergency stop switch for stopping the sewing machine in the event of an emergency. The emergency stop switch is located near the front edge of the table so that it is located diagonally upward and upward above the top surface level, and after tilting downward, the operation unit is located below the top surface level of the table. Featuring a butterfly so that it can tilt down. Here, the vicinity of the front edge of the table refers to a range centered on the front edge of the table so that an operator standing in front of the table can reach without having to tilt his / her body.

  The reason why the operation part of the emergency stop switch is located at a position higher than the upper surface level of the table is diagonally forward and upward so that the operation part can be visually recognized and operated easily in an emergency, and the operation part is operated incorrectly in normal times. This is to make it difficult. That is, since the operation unit is positioned higher than the upper surface level of the table, it becomes easier to visually recognize and operate the operation unit. However, if the operation unit is facing directly upward or facing directly forward, it becomes easy to perform an erroneous operation when touching unexpectedly during normal times. Therefore, in the present invention, the operation unit is positioned as described above.

  More specifically, it is preferable that the direction of the operation unit is 30 to 60 degrees in elevation from the upper surface (horizontal) of the table. Even if this is less than 30 degrees or more than 60 degrees, the tendency of erroneous operation increases as described above.

  Also, the worker may lean forward by placing the waist or abdomen against the front edge of the table. In order to prevent erroneous operation of the operation unit at that time, it is preferable that another member having a front-rear width of 50 to 130 mm exists in front of the operation unit, that is, the operation unit 50 to 130 mm behind the front edge of the other member. The leading edge is located. Here, examples of the other member include a front edge portion of the table, a switch body, and a switch mounting plate described later. Furthermore, it is preferable that the height from the upper surface of the table to the upper end of the operation unit is 50 to 100 mm.

The following aspect can be illustrated as how to provide the emergency stop switch.
(A) emergency stop switch, aspects provided on the upper surface of the table in this case, may be provided so as dropping the switch body in the recess to form a recess on the upper surface of (1) tables.
(B) A mode in which the emergency stop switch is attached in front of the front edge of the table. In this case, (1) the switch body of the emergency stop switch located in front of the front edge of the table may be attached to the front edge of the table. (2) A switch mounting plate positioned in front of the front edge of the table may be attached to the front edge of the table, and the emergency stop switch may be mounted on the switch mounting plate.

During various operations of the sewing machine, the sewing frame may be moved to the front edge of the table, and in that case, the emergency stop switch may interfere with the movement of the sewing frame. Therefore, for this purpose, it is preferable that the emergency stop switch is movably provided so that the operation unit may not be positioned higher than the upper surface level of the table. The following aspect can be illustrated as such how to provide.
(A) aspect can tilt this emergency stop switch to a lower position than the table top level, (1) to the switch mounting plate may be attached to the table via a hinge, in particular, before the table A mode in which a switch mounting plate positioned in front of the front edge is attached to the edge so that the switch mounting plate can be tilted downward from a horizontal state via a hinge at the rear end, and an emergency stop switch is attached to the switch mounting plate, The front edge of the table is provided with a recess that allows an operator to enter, and a switch mounting plate located in front of the front edge of the non-recessed portion of the table is a hinge at the rear end. It is attached so that it can incline downward from a horizontal state via an emergency stop switch, and an emergency stop switch is attached to the switch attachment plate.
Further, a stopper for holding the switch mounting plate in a horizontal state may be provided. (2) The switch mounting plate and the table may be hinged so that the switch mounting plate can be directly hinged without using a hinge.

  Examples of the operation unit include a button, a lever, and a dial.

  In the relationship between the operation unit and the operation unit installation surface that is a surface on which the operation unit is provided, the operation unit protrudes from the operation unit installation surface, and the operation unit installation surface is horizontal. Or the aspect which is depressed from the operation part installation surface can be illustrated.

  According to the present invention, it is possible to provide an embroidery sewing machine provided with an emergency stop switch that has good workability such as threading.

  The embroidery sewing machine provided with the emergency stop switch 5 shown in FIGS. 1 to 3 of the present invention is positioned at a position that is not a concave portion of the table 2 because the emergency stop switch 5 is positioned in front of the front edge of the table 2 of the embroidery sewing machine. The emergency stop switch 5 is mounted on the switch mounting plate 10 attached to the front edge. The operation unit 8 of the emergency stop switch 5 is located obliquely upward and upward at a position higher than the upper surface level of the table 2, and the angle of the operation unit 8 is 30 to 60 degrees from the upper surface of the table. The distance d to the front edge of the operation unit 8 is located 50 to 130 mm behind the front edge of the switch mounting plate 10. The height h to the upper end of the operation unit 8 is 50 to 100 mm from the upper surface level of the table 2. The operation unit 8 is a button. The switch mounting plate 10 is attached to the table 2 via a hinge 7.

  Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1, the embroidery sewing machine according to this embodiment includes a sewing machine frame, a sewing head 4, a sewing bed, a table 2, a sewing frame 3, and an emergency stop switch 5 attached to a switch mounting plate 10. The machine frame includes a pair of left and right leg frames, one bridge 1 and three front and rear lower frames. A plurality of (20 in the figure) sewing heads 4 are installed on the bridge 1 on the front side of the sewing machine. The same number of sewing beds as the number of sewing heads 4 are installed on the lower frame on the front side. The front edge of the table 2 is provided with a recess 11 that allows an operator to enter. A sewing frame 3 that can move on the table 2 is placed on the table 2.

  In addition, as shown in FIGS. 1 to 3, the switch mounting plate 10 is attached to the front edge of a portion that is not a recess of the table 2. By attaching the hinge 7 to the lower surface of the switch mounting plate 10 and the lower surface of the table 2, the switch mounting plate 10 can be tilted downward on the front side of the table 2. In order to hold the switch mounting plate 10 and the table 2 horizontally, a tilt prevention stopper or the like (not shown) is provided.

  Further, the emergency stop switch 5 includes a switch body 6 and an operation unit 8. On the upper surface of the switch mounting plate 10, a recess is formed in accordance with the bottom shape of the switch body 6 at a position of a distance d such that the front edge of the operation portion 8 is 50 mm behind the front edge of the switch mounting plate 10. . The emergency stop switch 5 is provided so as to drop the switch body 6 into the recess, and is fixed to the switch mounting plate 10 using a fixing tool such as a screw. When the switch mounting plate 10 and the table 2 are horizontal, the emergency stop switch 5 has a surface that faces diagonally forward and upward at a position higher than the upper surface level of the table. To do. The direction of the operation button 8 is such that the elevation angle a from the upper surface of the table is 45 degrees, the height h to the upper end of the operation button 8 is 50 mm from the upper surface level of the table 2, and the operation button 8 protrudes from the operation unit installation surface. As described above, the operation buttons are provided on the operation button installation surface 9.

According to the present invention, the following effects (a) to (e) can be obtained.
(A) As shown to Fig.3 (a), when the operation part 8 of the emergency stop switch 5 is located in the place higher than a table upper surface level and facing diagonally forward upward, the emergency stop switch 5 is easy to visually recognize.
(B) When the emergency stop switch 5 is operated in an emergency, the emergency stop switch 5 is provided in the vicinity of the front edge of the table 2 as shown in FIGS. The emergency stop switch 5 can be easily operated by being positioned diagonally forward and upward at a level higher than the level.
(C) Even when the operator performs the work by bending forward at the front edge of the table 2, the operation unit 8 of the emergency stop switch 5 is higher than the table top surface level, as shown in FIG. Since the operation part 8 is positioned rearward of the front edge of the switch mounting plate 10, the operator's abdomen 12 or the like makes an erroneous operation due to contact with the operation part 8 of the emergency stop switch 5. Can be prevented.

(D) At the time of preparation for work, when an operator performs work close to the sewing machine head, such as threading, the emergency stop switch 5 is provided on the front edge of the table 2 as shown in FIG. Therefore, when the emergency stop switch 5 does not hit the operator's head and when working in front of a portion that is not a recess of the table 2, the switch mounting plate 10 is moved downward as shown in FIG. By tilting, the emergency stop switch 5 does not get in the way and it is easy to perform operations such as threading.
(E) When the sewing frame 3 is advanced, the emergency stop switch 5 is tilted downward by tilting the switch mounting plate 10 attached to the table 2 via the hinge 7 as shown in FIG. Can be prevented from interfering with the sewing frame 3.

1 is a plan view of a multi-head embroidery sewing machine embodying the present invention, with a switch mounting plate supported horizontally. It is a top view of the state which inclined the switch mounting plate. It is a side view near the switch mounting plate. It is a top view of the multi-head embroidery sewing machine provided with the conventional emergency stop switch. It is a side view of the attachment form of the emergency stop switch.

Explanation of symbols

2 Table 5 Emergency stop switch 8 Operation section (operation buttons)

Claims (4)

In the embroidery sewing machine emergency stop switch is provided for stopping the sewing machine in an emergency, prior to tilting downwards is located facing diagonally forward and upward at the operation unit of the emergency stop switch is higher than the upper surface level of the table The emergency stop switch is hinged in the vicinity of the front edge of the table so that it can be tilted downward so that the operation portion is positioned below the upper surface level of the table after being tilted downward. An embroidery sewing machine. A switch mounting plate located in front of the front edge is attached to the front edge of the table so that it can tilt downward from a horizontal state via a hinge at the rear end, and the emergency stop switch is attached to the switch mounting plate. The embroidery sewing machine according to claim 1 attached . The front edge of the table is provided with a recess that allows an operator to enter, and a switch mounting plate positioned in front of the front edge is located at the rear edge of the front edge of the table that is not the recess. The embroidery sewing machine according to claim 1 , wherein the embroidery sewing machine is attached so as to be able to tilt downward from a horizontal state via a hinge of a portion, and the emergency stop switch is attached to the switch mounting plate . 4. The embroidery sewing machine according to claim 2, further comprising a stopper for holding the switch mounting plate in a horizontal state .

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