JPH0344136Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Application Field) The present invention relates to a toy sewing machine needle that is not only safe but also easy to attach and detach.

(Prior art and its problems) Conventionally, this type of toy sewing machine needle was formed so that only the metal needle tip was replaceable with respect to the synthetic resin needle tip support part, so when replacing it, the sewing thread On the other hand, it is troublesome to always keep the position of the needle hole constant during installation, and there are other drawbacks such as lack of consideration for safety, and a solution to these problems has been desired.

(Problems to be solved by the invention) The present invention has been made in view of the above-mentioned points of view, and is particularly concerned with creating a highly safe toy sewing machine that has a simple structure and can be easily replaced by children. The purpose is to suggest needles.

(Technical means to solve the problem) As a technical means to solve the above problem,
The toy sewing machine needle according to the present invention is a toy sewing machine that sews cloth material on a sewing table by moving the needle up and down from the needle drop part toward the sewing table, and is characterized by having the following requirements.

(a) Sewing machine needles shall be formed by integral insert molding of a metal needle tip and a synthetic resin support section provided continuously at the base of the needle tip.

(b) The support portion is provided with a protruding locking shaft that is locked to a link member for vertically moving the needle disposed in the needle drop portion of the sewing machine body.

(c) The above-mentioned support part shall be guided to the sewing machine body so that it can move up and down.

(Operations and Effects of the Invention) As configured above, the toy sewing machine needle of the present invention is formed by integrally insert-molding a metal needle tip and a synthetic resin support part, and has the above-mentioned features. Since the support portion is formed with a locking shaft that is locked to a link member of the sewing mechanism disposed within the needle drop portion, the needle body can be easily attached to the needle drop portion, and Replacement is also easy.
Furthermore, since the direction of the needle hole of the needle tip fixed to the support portion is always constant, stable movement of the sewing thread is possible.

(Example) Hereinafter, an example of an embodiment of the present invention will be described with reference to the drawings.

In FIG. 1a, reference numeral 30 indicates a sewing machine needle in a toy sewing machine needle according to the present invention. This sewing machine needle 50 is formed by integrally insert-molding a metal needle tip 51 and a synthetic resin support portion 52 attached to the base of the needle tip 51. The support portion 52 has a rod shape, and a locking shaft 52a is protruded from one side of the substantially central portion thereof. Reference numeral 51a indicates a needle hole bored at the tip of the needle tip 51, and the needle hole 51a is horizontally aligned with respect to the locking shaft 52a protruding from the support portion 52.
They are located at 90° different positions.

The toy sewing machine needle is attached to a sewing machine main body A as shown in FIGS.
It is composed of a sewing table 2 which is integrally protruded from the lower front part of the sewing machine.

The animal body 1 has one arm member 3 movable via a support shaft 3a as shown in FIG. 5a, and a needle body 5 on the chest 1a as shown in FIG.
A needle drop portion 6 in which a needle 0 is movable up and down is provided in a protruding manner. A removable cover 6a is provided on one side of the tip of the needle drop section 6, and a support shaft 7a, 7a is provided at both ends of the needle drop section 6 via support shafts 7a, 7a.
A cover member 7 is attached so as to be openable and closable with 7a as a fulcrum.

As shown in FIG. 4, the cover member 7 has a pressing protrusion 8 protruding from approximately the center of the back surface of one side, and this pressing protrusion 8 is provided at the lower side of the front side of the needle drop part 6. It is formed to correspond to the rectangular through hole 9. Further, a support piece 10 is integrally provided on the lower surface of the needle drop portion 6, and this support piece 10
A guide rail 11 is formed in the horizontal direction on one side. Reference numerals 11a and 11b indicate support parts provided on the upper and lower sides of the guide 11, and the lower parts of the support parts 11a and 11b are longer than the upper part.

Reference numeral 12 designates an electric circuit for rotating the motor 20 housed in the sewing machine body A as shown in FIG. 3, and this electric circuit 12 is provided in the needle drop section 6 as shown in FIG. A switch 13 is disposed on the back surface of the through hole 9, a part of which is exposed on the surface of the through hole 9, and is formed to be turned on and off by opening and closing the cover member 7.
An auxiliary switch 14 formed to be turned on and off by moving the tail 1b of the cat-like animal body 1 from side to side and a dry battery 15 serving as a power source are connected via lead wires 16, 16. It is configured.

As shown in FIG. 3, a spur gear 22 is meshed with a pinion 21 fixed to the output shaft of a motor 20 disposed inside the animal 1, and a pinion 23 is meshed with the spur gear 22. A main gear portion S is formed by the spur gear 24 and the spur gear 26 meshed with a pinion 25 arranged in parallel with the spur gear 24 . A rotating plate 27 is fixed to the central part of the front surface of the spur gear 26, and a support shaft 27 is fixed to the back surface of the spur gear 26.
8 is provided protrudingly. A rotating member 29 is attached to the tip of the support shaft 28, and a portion of the rotating member 29 is exposed from the back of the animal 1.

Reference numerals 30 and 31 indicate link members arranged horizontally at regular intervals; one link member 30 is located within the needle drop section 6, and the other link member 31 is located within the sewing table 2. Its base end is supported by support shafts 30a and 31a. As a result, the link members 30 and 31 are formed to be able to move up and down using the support shafts 30a and 31a as fulcrums. Also,
A locking shaft 52a protruding from the substantially central side surface of the support portion 52 of the sewing machine needle 50 disposed in the needle drop portion 6 is inserted into the fitting hole 32 at the tip of the link member 30.
When the sewing machine needle 50 is attached, the shaft 31b protruding from the tip of the link member 31 swings inside the sewing table 2 via the support shaft 35, as shown in FIGS. 3 and 5b. Freely arranged claw feeding member 36
It is inserted into the elongated hole 36a. The claw feeding member 36 and the needle tip 51 of the sewing machine needle 50 are formed to correspond to each other.

The link members 30 and 31 are connected via a connecting member 40, and both ends of the connecting member 40 are bent outward into a substantially L-shape. The distal ends thereof are located approximately at the center of the link members 30, 31, and are supported by support shafts 40a, 40a. Further, a fitting member has a fitting recess 41a approximately in the center of one side of the connecting member 40, into which a support shaft 27a protruding from a rotary plate 27 fixed to the center of the surface of the spur gear 26 is loosely fitted. 41 is fixed, and the link member 30 has a fifth link member 30 fixed thereto.
As shown in Fig. a, a shaft rod 42 is protruded from approximately the center of the side surface thereof, and its tip end is fitted into a fitting recess 4 formed in the arm member 3.

Reference numeral 45 denotes a cloth presser disposed on the upper surface of the sewing table 2. As shown in FIG. An elastic member 4 provided at the rear so as to abut
6. 47 is a thread winder 48
As shown in FIGS. 2b and 2c, this support member 47 is located on one inner surface of the animal 1, and its tip is formed to be movable up and down about a support shaft 47a. . An elastic member 48 that is normally attached to the base end of the support member 47
The tip is urged upward by. 49
indicates a locking member that is positioned above the support member 40 and locks the upward biasing state of the support member 40 within a certain range.

Since the sewing machine main body A is constructed as described above, when attaching and removing the sewing machine needle 50 to the needle drop section 6, it is necessary to attach the sewing machine needle 50 to the needle drop section 6 as shown in Fig. 1b. By removing the cover member 7, the side cover 6a of the needle drop portion 6 is divided. Then, the support portion 52 of the sewing machine needle 50 is connected to the lock 32 provided at the tip of the link member 30 of the sewing mechanism a.
The locking shaft 52a provided in the holder is removed. Thereby, the sewing machine needle 50 can be easily replaced. Also,
Once this replacement work is completed, all the parts can be assembled in the opposite direction. When the cover member 7 is attached to the needle drop portion 6 via the support shafts 7a, 7a, its elasticity enables it to reliably support the cover lid 6a.

Next, when performing sewing play, first open the cover member 7 attached to the needle drop section 6 and raise the tail 1b of the animal 1 to open the sewing mechanism a. Turn off the switches 13 and 14 built into the circuit 12 that rotates the motor 20
Make it. Next, a cloth to be sewn (not shown) is placed on the sewing table 45, and the sewing thread 48a wound around the thread winder 48 is placed in the guide groove 11 of the support piece 10 protruding from the lower surface of the needle drop portion 6. and guide the needle, and insert the tip into the needle hole 5b of the needle 5. When the above-mentioned work is completed, the cover member 7 is closed and the switch 13, which is partially exposed on the surface from the through hole 9 of the needle drop section 6, is pressed by the pressing protrusion 8 protruding from the back surface of the cover member 7. Press to turn on, and also turn on switch 14 by folding tail 1b.
Make it. This causes the motor 20 to rotate.

As the motor 20 rotates, its rotational force is transmitted to the main gear part S, and the main gear part S also rotates. At this time, the support shaft 27a protruding from the rotary plate 27 fixed to the center of the surface of the spur gear 26 of the main gear part S is fitted into the fitting member 41 provided approximately at the center of one side of the connecting member 40. Since it is loosely fitted into the recess 41a, this rotational force is converted into vertical movement, and the connecting member 4
0 performs continuous vertical movement repeatedly. Along with this, support shafts 40a and 4 are attached to the upper and lower ends of the connecting member 40.
Link members 30, 3 that are pivotally supported via 0a
As the tip of the needle 1 moves up and down about the support shafts 30a, 30a, the needle 5 attached to the tip of one of the link members 30 also moves up and down. In connection with this, a shaft 31 protruding from the tip of the other link member 31
A claw feeding member 3 having a long hole 36a into which b is fitted.
6 swings left and right around the support shaft 35. As a result, sewing can be performed on a cloth to be sewn (not shown), and the cloth to be sewn is sequentially fed laterally by the claw feeding member 36.

As described above, the toy sewing machine needle is formed by integrally insert-molding the metal needle tip 51 and the synthetic resin support portion 52 provided at the base of the needle tip 51. Therefore, by this,
The needle tip 51 does not fall off from the support part 52,
A highly safe sewing needle 50 can be obtained.
Further, since the supporting portion 52 is provided with a locking shaft 52a protruding from the locking shaft 52a that is locked in the locking hole 52 of the link member 30 disposed in the needle dropout portion 6, the needle dropout portion 6
The sewing machine needle 50 attached to the sewing machine can be easily replaced. In addition, since the direction of the needle hole 51a provided in the needle tip 51 fixed to the support portion 52 is always constant, stable movement of the sewing thread 48a is possible, and the sewing condition is also improved.

[Brief explanation of drawings]

Figure 1a is a perspective view of the sewing machine needle, Figure 1b is an exploded perspective view showing the sewing machine needle attached to the needle drop part,
Figures 2 a to c are front views and left and right side views of the sewing machine body, Figure 3 is an explanatory diagram of the sewing mechanism, Figure 4 is a motor circuit diagram of the sewing mechanism, and Figures 5 a and b are arm members and It is a perspective view which shows the attachment relationship with a link member, and an explanatory view which shows the operating state of a claw feeding member. Code 50... Sewing machine needle, 51... Needle tip, 52...
...support part, 52a...locking shaft.

Claims (1)

[Scope of Claim for Utility Model Registration] A toy sewing machine that sews cloth material on a sewing table by moving the needle up and down from a needle drop part toward a sewing table, which is characterized by having the following requirements: . (a) Sewing machine needles shall be formed by integral insert molding of a metal needle tip and a synthetic resin support section provided continuously at the base of the needle tip. (b) The support portion is provided with a protruding locking shaft that is locked to a link member for vertically moving the needle disposed in the needle drop portion of the sewing machine body. (c) The above-mentioned support part shall be guided to the sewing machine body so that it can move up and down.