JPH0217032Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field]

This invention relates to improvement of a motif creation tool for creating motifs such as flower patterns in handicrafts.

[Conventional technology]

As a conventional motif creation tool of this kind, the 6th
The one shown in the figure is known. This device is constructed by removably inserting latching pins B into a predetermined number of insertion holes arranged in an annular manner on the upper surface of a disc-shaped base A, and each latching pin B is inserted with a thread for handicrafts such as wool or lace thread. You can create a desired motif while hanging C.

[Problem that the idea aims to solve]

However, with the above-mentioned conventional motif creation tools, when removing the completed motif, most of the latching pins B must be removed from the base A, or the threads around the periphery of the motif latched to the latching pins B must be removed. There was a problem that required the extremely troublesome work of removing each piece one by one with a hook or the like. This invention is an attempt to solve the above-mentioned conventional problems, and its object is to make it possible to remove the finished motif from the creation tool with an extremely simple operation.

[Means to solve the problem]

In order to solve the above problems, this invention takes the following technical measures. That is, the handicraft motif creation tool of the present invention includes: a base having a support shaft projecting downward from the center of the lower surface and a plurality of guide grooves formed to extend radially from the center of the lower surface toward the periphery; a locking pin whose tip end is slidably held in each of the guide grooves so as to move in and out of the periphery of the base, and has protrusions formed on the lower surface thereof; The protrusions each have a plurality of cam grooves that are slidably engaged with each other, and are rotatably supported by the support shaft while overlapping the lower surface of the base, and when rotated, the tips of the respective latching pins are simultaneously attached to the base. a rotating disk that can be moved in and out of the periphery of the base; and a rotation regulating means that can hold the rotating disk in a rotational position such that the tips of the latching pins protrude from the periphery of the base by friction or engagement with the support shaft. It is characterized by comprising the following.

[Action and effect]

Each cam groove of the rotary disk is inclined with respect to the extending direction of the guide groove on the base side, that is, the sliding direction of each latch pin, so when the rotary disk is rotated, the inner surface of the cam groove is inclined to each latch pin. By pushing the protrusion of the stop pin, each of the stop pins can be reciprocated and slid in the direction of the guide groove all at once. Each latching pin is supported so that its tip can move in and out of the periphery of the base, so simply by rotating the rotary disk, the tip of each latching pin can be moved from the periphery of the base all at once. This means that they can be ejected. Therefore, in order to remove a finished motif with the tips of the latching pins protruding from the periphery of the base, simply rotate the rotating plate and retract the tips of each latching pin from the periphery of the base. All you have to do is let it happen. Further, since a rotation regulating means is provided that can hold the rotary disk in a rotational position such that the tip of the latching pin protrudes from the periphery of the base by friction or engagement with the support shaft, motif creation is possible. Inside, each latching pin will not accidentally sink in from the periphery of the base and the handicraft thread at the end of the motif will not come off.

[Explanation of Examples]

Embodiments of the present invention will be specifically described below with reference to the drawings. A downwardly protruding support shaft 1 is provided at the center of the lower surface 2a of the disc-shaped base 2, and a plurality of guide grooves 3 extend radially from the center toward the peripheral edge.
...is formed. Note that this guide groove 3 is open to the peripheral edge 2b of the base plate 2. A locking pin 4 is slidably held in each guide groove 3. The sliding stroke of the locking pins 4 is determined so that a state in which the tip thereof protrudes by a predetermined amount from the periphery 2b of the base 2 or a state in which it retracts from the periphery 2b of the base 2 can be selected. A protrusion 4a is provided on the lower surface of each latching pin 4, and each latching pin 4 reciprocates as described above by being pushed by the inner surface of a cam groove 6 of a rotary disk 5, which will be described later. It can be moved by sliding, but this will be explained in detail later. A disk-shaped rotary disk 5 is rotatably supported around the support shaft 1 so as to overlap the lower surface 2a of the base 2. The support shaft 1 has a circular section 1 at its base end.
a is provided, and the rotary disk 5 has the shaft hole 5a of the boss portion 5b formed at the center thereof aligned with the circular cross-sectional portion 1.
It is supported by fitting into a. The rotary disk 5 has a plurality of cam grooves that correspond to the guide grooves 3 and extend in a direction inclined with respect to the guide grooves 3, and in which the protrusions 4a of the respective latching pins 4 are slidably engaged. 6... is provided. When the rotary disk 5 is rotated, the intersections between the cam grooves 6 and the guide grooves 3 move in the radial direction of the base 2, so that the projections 4a located at these intersections are pushed against the inner surface of the cam grooves 6. By being connected to the base 2, each of the locking pins 4 is connected to the base 2 at the same time.
are reciprocally slid in the radial direction, and their tips are moved in and out of the peripheral edge 2b of the base 2 all at once. On the other hand, during the creation of the motif, the rotary disk 5 is held against the support shaft 1 so that the tips of the respective latching pins 4 protruding from the peripheral edge 2b of the base 2 do not move back inadvertently. Rotation regulating means S is provided which can hold the rotational position in the advanced rotational position. It is sufficient for this rotation restricting means S to provide a certain amount of frictional resistance to the rotation of the rotary disk 5 around one support shaft, but in this example, it is necessary to more reliably prevent the rotation of the rotary disk 5 during motif creation. The rotation regulating means S is constructed as follows. That is, the stopper cylinder 8 is fitted onto a portion of the support shaft 1 below the boss portion 5b of the rotary disk 5 so as to be non-rotatable and slidable in the axial direction while being elastically biased toward the boss portion 5b. A recess 7 and a protrusion 10 are formed on the lower edge of the boss portion 5b and the upper edge of the stopper cylinder 8, so that they can fit into each other in a male-female manner. However, the formation positions of the recess 7 and the protrusion 10 are as follows.
When the rotary disk 5 is in a rotational position in which the locking pin 4 protrudes from the periphery of the base 2, the locking pins 4 are fitted into each other. In this example, in order to make the stopper cylinder 8 non-rotatable with respect to the support shaft 1, a square shaft portion 1b is formed at the lower end of the support shaft 1, and
The inner hole 8b of the stopper tube 8 is a square hole that fits into the square shaft portion 1b. Further, by providing an enlarged diameter portion 8a below the inner hole 8b and elastically supporting the lower end of the compression coil spring 9 housed therein on a washer 11 fixed to the lower end of the support shaft 1 with a bolt, the stopper cylinder 8a is elastically biased upward, that is, toward the boss portion 5b. The state in which the recess 7 and the protrusion 10 are fitted is maintained by the compression coil spring 9. In this state, since the stopper tube 8 does not rotate relative to the support shaft 1, rotation of the rotary disk 5 is prevented, and the respective latching pins 4 protruding from the periphery of the base 2 are not inadvertently retracted. On the other hand, in order to retract each of the locking pins 4 so that their tips are recessed from the periphery of the base 2, the stopper cylinder 8 is pushed down in the axial direction against the elasticity of the compression coil spring 9, and the stopper cylinder 8 is pushed down in the axial direction to protrude into the recess 7. What is necessary is to release the mutual engagement of the parts 10 and rotate the rotary disk 5 in a predetermined direction.
Furthermore, in order to advance each of the locking pins 4 from the retracted position, only the rotary disk 5 needs to be rotated in a predetermined direction. Then, when the rotary disk 5 rotates to a position where the locking pin 4 is projected by an appropriate amount, the recess 7 and the protrusion 10 are automatically engaged by the elasticity of the compression coil spring 9, and the rotary disk 5 is rotated. is prevented. In the above configuration, when creating a motif, the turntable 5 is rotated to cause the tip of each latching pin 4 to protrude from the periphery of the base 2 as shown in FIG. In this state, a motif can be created in the same manner as in the past while hooking a handicraft thread such as wool or lace to the tip of each protruding latching pin 4. On the other hand, in order to remove the completed motif from the creation tool, as described above, push down the stopper tube 8 to release the restriction on the rotary disk 5, and then rotate it in a predetermined direction to release each of the latching pins 4 at once. from the periphery of the base 2. The latching pins 4 on which the threads around the periphery of the motif were hooked disappear all at once from the periphery of the base 2, so you can either pull out the latching pins one by one as in the conventional method, or use a hook hook to remove the thread from each latching pin. The completed motif can be removed from the creation tool extremely easily without the need for troublesome work such as removing the motif.

[Brief explanation of the drawing]

Fig. 1 is an overall perspective view showing how the motif creation tool of the present invention is used, Fig. 2 is a plan view with a part of the base cut away, Fig. 3 is a cross-sectional view taken along the line - - of Fig. 2,
FIG. 4 is a perspective view seen from below, FIG. 5 is an exploded perspective view, and FIG. 6 is an illustration of a conventional example. 1... Support shaft, 2... Base, 3... Guide groove, 4...
...Latching pin, 5...Rotary disk, 6...Cam groove, S...
...Rotation regulating means.

Claims (1)

[Claims for Utility Model Registration] A base having a support shaft projecting downward from the center of the lower surface and a plurality of guide grooves formed to extend radially from the center of the lower surface toward the periphery, and each of the above-mentioned guide grooves. a locking pin whose tip end slides in and out of the periphery of the base, and has a protrusion formed on its lower surface; Each has a plurality of cam grooves that are slidably engaged, and is rotatably supported by the support shaft while overlapping the lower surface of the base, and the tip of each of the latching pins can be pulled out from the periphery of the base all at once by rotational operation. a rotary disk that can be retracted; and a rotation regulating means that can hold the rotary disk in a rotational position where the tip of the locking pin protrudes from the periphery of the base by friction or engagement with the support shaft. A handicraft motif creation tool that is characterized by: