JPS6344476Y2 - - Google Patents

Description

[Detailed Description of the Invention] Technical Field The present invention relates to a removable attachment device for a stabbing frame for detachably attaching the stabbing frame to a movable body that is movable relative to a sewing needle.

Prior Art Conventionally, in order to attach a stabilizing frame to a moving body, fitting portions for positioning were provided on both sides.
The stabbing frame positioned by these fitting portions is fixed onto the movable body using fastening means such as tightening screws. Further, in order to prevent the tightening screw from loosening due to vibrations generated during sewing, it is necessary to tighten the tightening screw relatively strongly.

Therefore, when installing the stitching frame, the sewing manufacturer needs to perform two operations: fitting the stitching frame and the movable body, and tightening the tightening screws. When removing it, it was necessary to loosen the tightly tightened tightening screw. Moreover, the operation of loosening this tightening screw is troublesome for the operator.

Purpose The present invention was developed in view of the above-mentioned circumstances, and its first purpose is to provide a mounting device that allows a stabilizing frame to be attached to and detached from a moving body with a single operation. The second object is to provide a mounting device that can reliably mount the embroidery frame with a simple configuration.

Solution In order to achieve the above object, the present invention includes a plurality of protrusions that protrude outward from the circumferential surface of the outer frame of the stabilization frame and are arranged in parallel in the circumferential direction of the outer frame, and the plurality of protrusions. a fitting member fixed to the movable body, the fitting member having a notch provided in at least one of the protrusions, and a plurality of fitting holes each of which can fit with the plurality of protrusions, respectively; A groove is formed so as to communicate with the fitting hole from the outer side of the fitting member and matches the notch when the protruding body is fitted into the fitting hole, and a plurality of protruding bodies are fitted into the fitting hole. and an elastic body that engages with the notch through the groove when the groove is opened.

Therefore, the attachment device of the present invention allows the stabbing frame to be easily attached to and detached from the movable body by inserting and detaching the protruding body, and the attachment of the stabbing frame can be carried out between the notch and the elastic body. This can be done reliably by the engagement of the Furthermore, by arranging a plurality of the protrusions in parallel in the circumferential direction of the outer frame, the sewing frame can be held parallel to the sewing work surface, and
Vibration of the embroidery frame during sewing can be reduced.

Embodiments Hereinafter, embodiments embodying the present invention will be described with reference to the drawings.

FIG. 1 shows the external appearance of a sewing machine capable of stitching, and shows an upper arm 1 constituting a sewing machine frame 10.
The head 14 of 2 is equipped with a needle bar 16 that is capable of reciprocating up and down and swinging in the lateral direction, and a presser bar 18 that is movable up and down and has a presser foot 17 attached to its lower end for pricking. A known feed dog 22 is installed below the bed 20 and can be lowered by an operating body (not shown).
The structure is such that straight seams and zigzag seams can be selectively formed by transferring the work cloth.

On the other hand, a sewing needle 24 attached to the lower end of the needle bar 16
A stabilizing frame moving mechanism 40 is provided in order to relatively move the stabbing frame 30 in the X and Y directions that are orthogonal to each other. This moving mechanism 4
0 is a guide rod 42 installed below the bed 20.
A support frame 44 movable in the X direction along
and a movable body 48 that is movable along a guide rod 46 installed on the support frame 44. A roller 50 that engages with the upper surface of the bed 20 is attached below the free end of the support frame 44, and the support frame 4 is attached to one side of the movable body 48.
A roller 52 that engages with the lower surface of the extension part 4 extending in the Y direction is attached. Further, a timing belt 54 is fixed to the movable body 48 to which rotation of the guide rod 42 is transmitted via a gear mechanism.

Next, a mounting device for removably mounting the embroidery frame 30 to the movable body 48 will be described.

The stabbing frame 30 consists of an inner frame 32 and an outer frame 34 made of synthetic resin, and an L-shaped metal fitting 36 is fixed to the upper right edge of the outer frame 34. The metal fittings 3
Two protrusions 56, 58 are provided on the standing portion 36a of No. 6.
are arranged in parallel in the circumferential direction of the outer frame 34, and cutouts 60 and 62 are bored in the intermediate portions of the protrusions 56 and 58, respectively. And the mobile body 4
There are two fitting members 6 on the left hanging part 48a of 8.
4 and 66 are fixed in line, and the protruding body 5
Fitting holes 68 and 70 into which the fittings 6 and 58 can be fitted are formed in the fitting members 64 and 66, respectively. Grooves 72 and 74 are formed in the fitting members 64 and 66, respectively, in a positional relationship that matches the notches 60 and 62 when the protrusions 56 and 58 are fitted into the fitting holes 68 and 70, respectively. The grooves 72, 74 are formed so as to communicate with the fitting holes 68, 70 from the outer side of the fitting members 64, 66.

An elastic body 7 is used to hold the stabbing frame 30.
6 is attached across the fitting members 64, 66, and its elastic body 76 has linear engaging portions 77, 78 that can engage with the notches 60, 62 through the grooves 72, 74.
and curved engaging portions 79 and 80 that can engage with the outer peripheral surfaces of the fitting members 64 and 66 are formed.

In this embodiment configured as described above, when the embroidery frame 30 with the work cloth sandwiched between the inner frame 32 and the outer frame 34 is attached to the movable body 48, the protrusions 56 and 58 are inserted into the fitting holes. A single operation of fitting into the holes 68 and 70 is sufficient. At this time, the linear engaging portions 77 and 78 of the elastic body 76 are connected to the notches 60 and 6.
2, the protrusions 56, 58 fit into the fitting holes 68, 7.
It is pressed against the circumferential surface of 0. As a result, the embroidery frame 3
0 is reliably held on the moving body 48 by elastic force,
The sewing work surface, which is the upper surface of the bed 20, is kept parallel to the sewing work surface. On the contrary, the stabbing frame 30 can be removed by a single operation of disengaging the protrusions 56, 58 from the fitting holes 68, 70.

A second embodiment of the present invention will be described with reference to FIG. Incidentally, in the second embodiment, the same parts as in the first embodiment are given the same numbers.

The second embodiment includes a protrusion 90 and a fitting member 94.
Since the configuration is substantially the same as that of the first embodiment except for the addition of , only the added portion and related portions will be described below. The protruding body 90 is connected to the other protruding bodies 56 and 58.
The protrusions 5 are formed longer than the
6, 58, and 90 are the upright portion 92a and the hanging portion 92b of the T-shaped metal fitting 92 fixed to the upper edge of the outer frame 34.
The projecting bodies 90 are arranged in parallel in the circumferential direction of the outer frame 34, and are arranged so that the protruding bodies 90 are positioned below the middle of both the protruding bodies 56 and 58. Further, fitting members 64 and 66 configured similarly to the first embodiment are fixed to the left hanging portion 48a of the movable body 48, and fitting members 64 and 66 that are longer than the fitting members 64 and 66 are fixed to the left hanging portion 48a of the moving body 48. A fitting member 94 is fixed, and a fitting hole 96 into which the protrusion 90 can be fitted is bored in the fitting member 94.

In the second embodiment configured as described above, when the stabbing frame 30 is attached to the movable body 48, the tip of the protruding body 90 is fitted into the fitting hole 96, so that the stabbing frame 30 can be attached to the movable body 48. After the mounting device is roughly defined, the protrusions 56, 58 fit into the fitting holes 68, 7.
The rotating position of the stabbing frame 30 is adjusted around the protrusion 90 so that it faces 0. Then, the protrusions 56 and 58 are inserted into the fitting holes 6 of the fitting members 64 and 66.
8, 70, and move the notches 60, 62 until they match the grooves 72, 74 of the fitting members 64, 66, and engage the notches 60, 62 with the linear engagement parts 77, 78 of the elastic body 76. Match. Thereby, the stabbing frame 30 can be reliably held by the elastic engagement between the notches 60, 62 and the elastic body 76. still,
The embroidery frame 30 can be removed in the same manner as in the first embodiment.

Therefore, in the second embodiment, since the protrusion 90 and the fitting member 94 act as guide means, it becomes easy to align the other protrusions 56, 58 with the fitting holes 68, 70, and as a result, the installation work of the embroidery frame 30 is simplified.

The present invention is not limited to the two embodiments described above, and various changes can be made without departing from the spirit thereof.

Effects As is clear from the detailed description above, the present invention has a plurality of protrusions arranged in parallel in the circumferential direction of the outer frame of the stabbing frame, and a fitting hole that can be fitted with the protrusions. Through a fitting member having a groove and a groove bored so as to communicate with the fitting hole from the outer side of the fitting member,
By providing an elastic body that engages with a notch formed in at least one of the plurality of protrusions, the stabbing frame can be easily assembled with a single operation of fitting the protrusion into the fitting hole. Can be installed.
Furthermore, by arranging a plurality of protrusions in parallel, it is possible to reliably hold the stitching frame parallel to the sewing work surface, and it is also possible to reduce vibrations of the stitching frame during sewing. . Furthermore, since the protrusion is provided on the embroidery frame and the fitting member is provided on the movable body, when sewing without using the embroidery frame, the fabric to be processed can be handled without any trouble on the bed surface without getting caught on the protrusion. It has various practical effects such as the ability to

[Brief explanation of the drawing]

1 to 4 show a first embodiment of the present invention, and FIG. 1 is a perspective view showing the external appearance of a sewing machine to which the detachable attachment device of the above embodiment is applied, and FIG. Fig. 2 is an enlarged view showing the stitching frame and moving body, Fig. 3 is an enlarged sectional view taken along line A-A in Fig. 2, Fig. 4 is an enlarged sectional view taken along line BB in Fig. 2, and Fig. 5 is an enlarged sectional view taken along line A-A in Fig. 2. The figure shows a second embodiment of the present invention, and is a partially cutaway drawing showing the state of engagement between the protrusion and the fitting member. 24: Sewing needle, 30: Stitching frame, 32: Inner frame,
34: Outer frame, 48: Moving object, 56, 58, 90:
Projection body, 60, 62: Notch, 64, 66, 94:
Fitting member, 68, 70, 96: Fitting hole, 72, 7
4: Groove, 76: Elastic body.

Claims (1)

[Claims for Utility Model Registration] 1. A movable body 48 that is movable relative to the sewing needle 24, and an inner frame 3 for holding the work cloth.
2 and an outer frame 34, and a stitching frame 30 that is detachable from the movable body 48, the stitching frame 30 projects outward from the circumferential surface of the outer frame 34, A plurality of protrusions 56, 58, 90 arranged in parallel in the circumferential direction of the frame 34, and notches 60, 62 provided in at least one protrusion 56, 58 among the plurality of protrusions 56, 58, 90. and a plurality of fitting members 64, 66, 94 fixed to the movable body 48, which are provided with a plurality of fitting holes 68, 70, 96 that can be fitted with the plurality of protrusions 56, 58, 90, respectively. , are bored so as to communicate with the fitting holes 68, 70 from the outer side of the fitting members 64, 66, and the protrusions 56, 58, 90 are connected to the fitting holes 68, 7.
0,96 when the notches 60,62
grooves 72, 74 that match with the grooves 72, 74, and engage with the notches 60, 62 through the grooves 72, 74 when the plurality of protrusions 56, 58, 90 are fitted into the fitting holes 68, 70, 96. A removable attachment device for a stabbing frame consisting of an elastic body 76. 2. Attaching and detaching the embroidery frame according to claim 1, wherein one of the plurality of protrusions 56, 58, 90 is longer than the other protrusions 56, 58. Type mounting device.