JP2003135880A - Table storing device of sewing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To store a table below and behind a bed during transportation or maintenance. SOLUTION: A movable table 11 is vertically movably positioned in front of a fixed table 10 and is separably held against a machine frame by a holding member at the same height as the bed 8. When separated from the machine table the movable table 11 is vertically movably supported by a fluid absorber 12 from its underside. The holding member comprises holding members for holding both the right and left ends of the movable table 11, a latching member 14 for latching the rear end of the movable table 11, and a support member for supporting the horizontal mid portion of the movable table 11 from its underside in front of the latching member 14. The fluid absorber 12 is longitudinally rotatably mounted to a front frame 5a below the bed 8, with the front end of the fluid absorber rotatably connected to approximately the longitudinal center of the movable table 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a table device for a sewing machine.

[0002]

2. Description of the Related Art In a conventional embroidery sewing machine, for example, a plurality of heads and a bed are arranged in a horizontal direction on a machine frame, and a table is horizontally fixed at a height substantially the same as that of the bed so as to project forward. . Further, in Japanese Patent Laid-Open No. 6-246085, when embroidering a tubular sewn product such as a T-shirt,
In order to expose the bed, an embroidery sewing machine has been proposed in which the table is supported by a rack and pinion mechanism so that it can be moved up and down at the same front and rear position.

[0003]

However, the conventional embroidery sewing machine has the following problems because the table always projects forward. (1) During maintenance such as thread breakage, the slippage becomes poor. (2) The packing form becomes large and the transportation cost increases. (3) Normally, the front-back width (depth) of the entire sewing machine including the table is 1000 mm or more, so if the width of the doorway of the building is less than that, the table may be disassembled, or the sewing machine may be put in or taken out through a window. It is difficult to carry in and out.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above problems and to provide a table device for a sewing machine which can store the table on the lower rear side of the bed during transportation, maintenance and inspection.

[0005]

In order to solve the above-mentioned problems, the table device of the present invention has a plurality of heads and a bed arranged in the machine frame in the left-right direction, and the table is placed at substantially the same height as the bed. In a horizontally arranged embroidery sewing machine, holding means for detachably holding the table in the machine frame at a use position at substantially the same height as the bed, and the table separated from the holding means below the bed and behind the use position. And a guide means for guiding the user to the storage position.

It is preferable that the rear end of the table in the storage position is substantially at the same position in the front-rear direction as the rear end of the machine frame or the rear end of a fixed table which is arranged separately from the table and does not move up and down.

When sewing a tubular sewn product, the table is at an intermediate height between the use position and the storage position and in the front-rear direction is approximately the same as the use position so that the bed can be exposed and used. It is preferable to provide support means for supporting the position horizontally.

The guide means is not limited to a specific means, and various guides such as those using a link mechanism or a cam mechanism for guiding the table in the vertical direction and the front-back direction can be adopted.
In particular, since the table can be smoothly guided in both directions with a simple structure, the guide means includes an elastic member that supports the table so that the table can be moved up and down, and the elastic member is rotated in the machine direction below the bed in the front-rear direction. It is preferable that it is attached as much as possible.

In this case, the expansion / contraction member is not limited to a specific member, but includes a member that automatically raises and lowers the table using a power source, or a member that assists the operator in manually operating the table. In the former case, an air cylinder, a hydraulic cylinder, or the like can be used as the elastic member.
In the latter case, in order to facilitate the manual operation, a means such as a spring or a pressurized fluid for urging the table in the ascending direction is provided on the telescopic member, and the tip of the telescopic member is rotated to the center of the table in the front-rear direction. It is preferably movably linked. In particular,
A fluid absorber may be used as the elastic member in that a large table can be operated easily.

The holding mechanism is not limited to a particular mechanism, but in the case of a multi-head sewing machine, in order to prevent the table that is long to the left and right from bending, a holding member that holds both left and right ends of the table and a rear end of the table are hooked. It is preferable that it is composed of a locking member that stops and a supporting member that supports the middle portion of the table in the left-right direction from below in front of the locking member. Further, when the table is horizontally supported at an intermediate height between the use position and the storage position, it is preferable to provide two upper and lower engaging portions on the engaging member and an adjustable height supporting portion on the supporting member. .

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT An embodiment in which the present invention is applied to a table device of an embroidery sewing machine will be described below with reference to the drawings. As shown in FIGS. 1 and 2, in this embroidery sewing machine, a plurality of heads 3 (for example, 6 heads) are laterally arranged on an upper frame 2 of a machine frame 1, and a needle 4 is attached to a lower end of the head 3.
Is provided. The pedestal 6 is mounted on the lower frame 5 of the machine casing 1.
The intermediate frame 7 is fixed via the intermediate frame 7, and the same number of beds 8 as the heads 3 are installed on the intermediate frame 7, and the needle plate 9 and the shuttle (not shown) are provided at the front end of the bed 8.

At the same height as the bed 8, fixed tables 10 are horizontally fixed to the rear and left and right sides of the machine frame 1, and a movable table 11 is arranged in front of the fixed table 10 so as to be able to move up and down. Fixed table 10 and movable table 1
1 is formed to be long in the left-right direction, cutouts 10a, 11a for exposing the bed 8 are formed at positions corresponding to the bed 8, and an embroidery frame (not shown) is moved forward, backward, left-right on each table 10, 11. In addition, in the embroidery sewing machine of this embodiment,
The front and rear width D of the lower end of the machine frame 1 is 760 mm, and the fixed table 1
The front and rear width C of the rear portion of 0 is 280 mm, the front and rear width B of the movable table 11 is 950 mm, and the front and rear width A (B + C in this embodiment) of the entire sewing machine is 1230 mm.

The movable table 11 is detachably held with respect to the machine casing 1 by the holding means at the "use position" at the same height as the bed 8, and the movable table 1 separated from the machine casing 1.
1 is guided by the guiding means to the "storage position" below the bed 8 and behind the use position. The rear end of the movable table 11 at the storage position is substantially the same as the rear end of the fixed table 10 in the front-rear direction. The holding means is the movable table 1.
1, a holding member 13 that holds the left and right ends of the movable table 11, a locking member 14 that locks the rear end of the movable table 11, and a support that supports the intermediate portion in the left-right direction of the movable table 11 in front of the locking member 14 from below. It is composed of a member 15.

As shown in FIG. 2, the holding member 13 includes a locking metal fitting 17 attached to the back surface of the movable table 11,
It is composed of a receiving member 18 fixed to the back surface of the fixed table 10. A locking piece 19 is slidably provided on the locking metal fitting 17 to the left and right, and a long hole 17a of the locking metal fitting 17 is provided.
By operating the knob 19a exposed from the bottom to the lock piece 1
9 is hung on and off the metal fitting 18.

As shown in FIG. 1, the hooking member 14 is composed of a hook 20 fixed to the back surface of the movable table 11 and a hooking plate 21 attached to the front surface of the intermediate frame 7. The latch plate 21 includes two upper and lower latch portions 21a,
21b is provided so as to project, and the hook 20 is hooked on the hook portions 21a and 21b by the backward movement of the movable table 11, and the hook 20 is hooked by the hook 20 by the forward movement of the movable table 11.
It is released from a and 21b.

As shown in FIGS. 3 and 4, the support member 15 is composed of a rod 23 having a support portion 23a at its upper end and a locking plate 24 for locking the support portion 23a.
Plural pieces are arranged side by side so as to be located on one side of each (see FIG. 2). The rod 23 is the front frame 5 of the lower frame 5.
A is obliquely supported by a through a bracket 25 and a support cylinder 26 so that its height can be adjusted, and a handle 27 for tightening the rod 23 is screwed to the support cylinder 26.

The locking plate 24 is attached to the back surface of the movable table 11 at a substantially central portion in the front-rear direction, and has an inclined surface 24a against which the support portion 23a abuts at a right angle, and a projection 24b partitioning the inclined surface 24a into the front and rear. Further, the supporting member 15 and the lower hooking portion 21b of the hooking member 14 constitute a supporting means, and when the embroidery process of a tubular sewn product such as a T-shirt is performed, the movable table 11 is set between the use position and the storage position. It is horizontally supported at an intermediate height and in the front-rear direction at an "intermediate height position" which is the same position as the use position (see FIG. 4b).

The guide means is provided with a fluid absorber 12 which supports the movable table 11 so that it can be moved up and down and moved back and forth from below. As shown in FIGS. 5 and 6, the fluid absorber 12 is composed of a cylinder 30 and a rod 31 so as to be extendable and contractible, and a plurality of fluid absorbers 12 are arranged side by side so as to be located on the opposite side of the support member 15 for each bed 8. ing.

The cylinder 31 is rotatably attached to the front frame 5a below the bed 8 via a bracket 32 by a shaft 33 so as to be rotatable in the front-rear direction. Pressure oil is enclosed.
The tip of the rod 31 is rotatably coupled to the back surface of the movable table 11 at the substantially central portion in the front-rear direction by a shaft 35 via a bracket 34. Then, the fluid absorber 12 can be pivoted rearward in a contracted state to dispose the movable table 11 at the storage position.

In the embroidery sewing machine having the above-described structure, during normal embroidery processing, the movable table 11 is arranged at the "use position" at the same height as the bed 8 and the locking piece 1 of the holding member 13 is arranged.
9, the hook 20 of the hooking member 14 is hooked on the hooking portion 21a on the upper side of the hooking plate 21, and the supporting member 1
The support portion 23a of No. 5 is applied to the front portion of the inclined surface 24a of the locking plate 24, and the rod 23 is fixed by the handle 27. In this way, the movable table 11 that is long in the left and right directions can be held horizontally in the use position without bending.

When the bed 8 is exposed and embroidered, the rod 23 of the support member 15 is lowered, the lock piece 19 is removed from the metal fitting 18, and the hook 20 is hooked on the upper side 21a.
The movable table 11 is placed horizontally, the supporting portion 23a is brought into contact with the rear portion of the inclined surface 24a, and the rod 23 is held by the handle 27. Fix with. In this case, the urging force of the fluid absorber 12 can be used to easily relocate the large and heavy movable table 11 from the use position to the "intermediate height position" by manual operation.

When the movable table 11 is to be stored for transportation, maintenance, etc., the rod 23 of the support member 15 is lowered to the lower limit, and the hook 20 is removed from the lower hook portion 21b. Then, the movable table 11 is tilted rearward and downward, the fluid absorber 12 is rotated rearward, the rear end of the movable table 11 is inserted into the lower side of the intermediate frame 7, and is placed on the support piece 37 fixed to the pedestal 6. Then, the locking piece 19 is hung on the rear receiving fitting 38 (see FIG. 2) of the fixed table 10 as required. By doing so, since the fluid absorber 12 supports the movable table 11 at the position of the substantial center of gravity, the movable table 1
1 can be tilted lightly to be stored smoothly in the "storage position" on the lower rear side of the bed 8.

In this storage form, the movable table 1
Since No. 1 is retracted, it is easy to lean when performing maintenance inspection such as thread breakage. Further, since the front-rear width of the entire sewing machine is shortened to the same length as the front-rear width B of the movable table 11 (for example, 950 mm), the packing form can be downsized, the transportation cost can be reduced, and the sewing machine can be installed from the doorway of a normal building to the sewing machine. Can be easily loaded and unloaded. If the operation is performed in the reverse order to the above, the movable table 11 can be quickly returned from the storage position to the use position.

7 and 8 show another embodiment of the present invention. In this table device, a rear roller 41 and a front roller 42 are supported at the left and right ends of the movable table 11, and a rear holding plate 43, a front holding plate 44, a rear supporting plate 45, and a front supporting plate are provided at the left and right ends of the machine frame 1. 46 and the lower guide plate 47 are fixed. The rear holding plate 43 and the rear support plate 45 are provided with recesses 43a and 45a for receiving the rear roller 41 from below, and the front holding plate 44 and the front support plate 46 are provided with the front roller 4
Slits 44a and 46a for guiding the front and rear 2 are formed in the lower guide plate 47.
Recesses 47a and 47b for receiving 2 from below are provided.

The rear holding plate 43 and the front holding plate 44 constitute a holding means and detachably hold the movable table 11 in the machine frame 1 at the "use position" at the same height as the bed 8. The rear support plate 45, the front support plate 46, and the lower guide plate 47 constitute guide means, and guide the movable table 11 to the "storage position" below the bed 8 and behind the use position. Further, the rear support plate 45 and the front support plate 46 constitute a support means, and the movable table 11 is at an intermediate height between the use position and the storage position and in the front-rear direction is the “intermediate height position” which is the same position as the use position. Support horizontally. According to this configuration, the manual operation is more complicated than the above-described embodiment, but the movable table 11 can be arranged at the use position, the intermediate height position, and the storage position using inexpensive parts.

When arranging the movable table 11 from the "use position" to the "intermediate height position", as shown in FIG. 8A, the movable table 11 is pulled forward and the front roller 42 is moved to the front holding plate. The rear roller 41 is removed from the rear holding plate 43 by applying it to the front end of the slit 44a of 44, and in this state, the movable table 11 is tilted around the front roller 42, and the rear roller 41 is placed on the rear support plate 45. Next, as shown in FIG. 8 (b), the movable table 11 is pushed backward, the rear roller 41 is dropped into the recess 45 a of the rear support plate 45, and the front roller 42 is removed from the slit 44 a of the front holding plate 44 and moved forward. It is lowered onto the support plate 46, and the movable table 11 is horizontally arranged at the intermediate height position.

When arranging the movable table 11 from the "intermediate height position" to the "storage position", as shown in FIG. 8C, the movable table 11 is pulled forward and the front roller 42 is moved to the front support plate. The rear roller 41 is removed from the rear support plate 45 by applying it to the front end of the slit 46a of 46, and in this state, the movable table 11 is tilted about the front roller 42, and the rear roller 41 is placed on the lower guide plate 47. Next, as shown in FIG. 8D, the movable table 11 is pushed backward to move the front roller 42.
Is removed from the rear end of the front support plate 46 and lowered onto the lower guide plate 47, and the front and rear rollers 41, 42 are recessed 47a, 47b.
Then, the movable table 11 is placed at the storage position.

The present invention is not limited to the above-described embodiment, but may be embodied with appropriate modifications within the scope not departing from the spirit of the invention, for example, as follows. (1) A table made of a single plate is supported by an elastic member so that it can be moved up and down. (2) Use a spring cylinder as the elastic member. (3) Instead of the support member 15, support the front end of the table with a telescopic pole. (4) Guide the table between the use position and the storage position by the link mechanism. (5) The present invention is not limited to the front-rear width A of the entire sewing machine, but in the sewing machine having the front-rear width A of 990 mm or more, the movable table 11 is stored in the storage position so that the front-rear width is less than 990 mm. When it is embodied so as to be shortened, it is preferable in that two sewing machines can be accommodated side by side in the inner width direction of the container for transportation. Further, in the same sewing machine, when the movable table 11 is stored in the storage position so that the front-rear width is shortened to less than 850 mm, the width becomes smaller than the door opening width of most of the building, and the door opening and closing is performed. It is more preferable in that it can be performed.

[0029]

As described above in detail, the table device for a sewing machine according to the present invention has an excellent effect that the table can be stored in the lower rear side of the bed during transportation, maintenance and inspection.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of a table device according to the present invention.

FIG. 2 is a plan view showing a left side portion of the table device.

FIG. 3 is a sectional view showing a support member of the table device.

FIG. 4 is a cross-sectional view showing the operation of the support member.

FIG. 5 is a cross-sectional view showing a fluid absorber of the table device.

FIG. 6 is a cross-sectional view showing the action of the fluid absorber.

FIG. 7 is a side view showing another embodiment of the table device according to the present invention.

FIG. 8 is a side view showing the operation of the table device.

[Explanation of symbols]

1 machine frame 3 heads 8 beds 10 fixed table 11 movable table 12 fluid absorber 13 Holding member 14 Hook member 15 Bearing members 21a Hook part 21b Hook 23a Bearing part 41 Rear roller 42 Front roller 43 Rear holding plate 44 Front holding plate 45 Rear support plate 46 front support plate 47 Lower guide plate

Claims (8)

[Claims] 1. A sewing machine in which a plurality of heads and a bed are arranged in a horizontal direction on a machine frame, and a table is horizontally arranged at substantially the same height as the bed, and the table is used at a use position at substantially the same height as the bed. A table device comprising holding means that is detachably held in a frame, and guide means that guides the table separated from the holding means to a storage position below the bed and behind the use position. 2. The sewing machine according to claim 1, wherein the rear end of the table in the storage position is located at substantially the same position in the front-back direction as the rear end of the machine frame or the rear end of a fixed table which is arranged separately from the table and does not move up and down. Table device. 3. A support means for horizontally supporting the table at an intermediate height between the use position and the storage position and in the front-rear direction at an intermediate height position substantially the same as the use position. Sewing machine table equipment. 4. The guide means includes an elastic member that supports the table so that the table can be moved up and down from below, and the elastic member is attached to a machine frame below the bed so as to be rotatable in the front-rear direction.
The table device of the sewing machine according to 2 or 3. 5. The table device for a sewing machine according to claim 4, wherein the telescopic member is provided with a means for urging the table in the upward direction, and the tip of the telescopic member is rotatably coupled to the approximate center of the table in the front-rear direction. 6. The table device for a sewing machine according to claim 5, wherein a fluid absorber is used as the elastic member. 7. The holding means supports a holding member for holding both left and right ends of the table, a hooking member for hooking a rear end of the table, and a laterally middle portion of the table in front of the hooking member from below. The table device for a sewing machine according to any one of claims 1 to 6, further comprising: 8. The table device for a sewing machine according to claim 7, wherein the latching member is provided with two upper and lower latching portions, and the bearing member is provided with a height-adjustable supporting portion.