JPS644474B2 - - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a play equipment that rotates and descends when a player hangs on it, and in particular, when descending, the hanging rod inserted into the cylinder rotates smoothly and there is no risk of it tilting inside the cylinder. In addition, the mechanical strength is extremely high, that is, a ratchet 2 with teeth 2' formed on the upper surface is provided in the cylinder body 1 so as to be horizontally rotatable, and a spiral hole 3 is passed through the ratchet 2, and the ratchet 2 is inserted from above the ratchet 2. The non-return pawl 4 is projected downward by its own weight and meshes with the teeth 2' of the ratchet 2, forming a spiral strip 6 on the hanging rod 5, threading the spiral strip 6 into the spiral hole 3, and inserting the coil spring 7 into the spiral strip. 6
It is characterized in that the upper end is placed on a receiving part 8 integrated with the spiral strip 6, and the lower end is placed on a ball bearing 9 provided inside the cylinder 1.

The inventor of the present application once devised a hanging rotating toy shown in FIG. This conventional example (Jikko Sho 57-
No. 19183) installs a coil spring b inside a cylinder a, attaches a triangular piece e to a hanging rod c, which is normally protruded by a spring d, inserts the hanging rod c into the cylinder a, and attaches the triangular piece e to the hanging rod c. This locks onto the coil spring b. Then, as the player hangs from the hanging rod c, the locking end of the triangular piece e slides on the coil spring b, and the rod c
is lowered while rotating, and after descending, by pushing up the rod c, the locking end of the triangular piece e hits the coil spring b and sinks as shown by the solid line, and the rod c does not rotate. It will rise immediately.

However, according to this conventional example, when the player hangs and puts weight on the coil spring b and the triangular piece e, the coil spring b and the triangular piece e are easily deformed and damaged. Since the locking end of the triangular piece e is placed on the line, it is prone to wear and has low mechanical strength, as well as the hanging rod c tilts around the locking point, resulting in extremely poor rotational effect and In order to raise the bar c, a pushing force is required, and the spring d is deformed during the above-mentioned loading, so it is difficult to raise it smoothly.For the above reasons, the strength of each part must be adjusted sufficiently in manufacturing. Therefore, it has to be a high-precision product, and it is extremely difficult to provide it at a low price.

The present invention solves these disadvantages, and the structure of a specific example will be explained in detail next. From below the outer cylinder 1a made of iron pipe, a middle cylinder 1b having flange plates 10, 11 is inserted at the upper end and slightly below it, and connected with screws 13, 13 to form the cylindrical body 1. , 11
2 from below, place the thrust ball bearing 9' and the thick ratchet 2 in this order, and place it on the collar plate 10.
The thrust ball bearing 9 and the receiving part 8' are placed in this order from the bottom, and the center of the ratchet 2 is passed through a spiral hole 3 which is screwed into a spiral thread 6 which will be described later. Incidentally, the ratchet 2 has teeth 2' formed on its upper surface as shown. In addition, a small window 15 is cut out in the collar plate 10, and a groove-shaped bearing 15a is formed, and the shaft 4a of the reverse stopper claw 4 is locked to the bearing 15a, and the reverse stopper claw 4
is caused to protrude downward from the small window 15 by its own weight and engages with the teeth 2' of the ratchet 2, making it impossible for the ratchet 2 to rotate clockwise (in FIG. 3). In addition, the anti-reverse claw 4 moves upward to the ball bearing 9.
Since it is provided, it will not come off. Further, a horizontal gripping portion 5b is integrated with the lower end of the inner pipe 5a, a long iron piece 5c is inserted and fixed into the inner pipe 5a to form a hanging rod 5, and the protruding portion of the rod 5 is twisted into a spiral shape. A spiral 6 is formed upward to the left, and a stopper 5e is formed upward, and a bolt shaft 5f is formed at the uppermost end. The hanging rod 5 is inserted into the middle cylinder 1b from below, and the spiral strip 6 is passed through the ball bearings 9, 9' and the receiving part 8', and also through the spiral hole 3, and the coil spring 7 is inserted.
is wound around the spiral strip 6, and the lid-shaped receiving part 8 is wrapped around the strip 5c.
The upper non-helical part is locked, and the nut 5g is screwed onto the bolt shaft 5f to fix the receiving part 8, and the upper end of the coil spring 7 is locked to the receiving part 8 and the lower end to the receiving part 8'. Furthermore, the rotation pin 18 of the universal joint 17 is rotatably inserted into the bearing hole 19 on the upper part of the outer cylinder 1a, and is tightened with a nut 20, and the ring 17b, which rotates in the horizontal direction, is attached to the head plate 17a of the universal joint 17. and hooks 21a and 21b facing in opposite directions are attached to this ring 17b.

Next, the usage and operation of this example of the invention will be described. The example of this invention is suspended by hooking the hooks 21a and 21b to an aerial horizontal member such as a horizontal pipe of a swing. Furthermore, due to the pair of hooks 21a and 21b, there is no fear that this invention example will come off during use.
In addition, the universal joint 17 allows the entire ring to be swung back and forth and left and right in addition to the movements described below.
7b allows the entire main body to swing in a 360° direction. After installing this example of the invention, when the player grasps the horizontal grip portion 5b and hangs it, the hanging rod 5 lowers while contracting the coil spring 7 which has been extended up until now. Here, since the spiral thread 6 is a so-called left-handed thread, a clockwise rotational force (in Figs. 3, 5, and 7) is generated in the ratchet 2, which has the spiral hole 3 to which it is screwed, but it rotates downward. Reverse stopper claw 4
As a result, the ratchet 2 cannot rotate clockwise (Figs. 4 and 5), so it does not rotate, and on the contrary, the spiral thread 6 rotates counterclockwise and descends due to the reaction force of the anti-reverse pawl 4. Eventually, the stopper 5e comes to rest on the receiving portion 8' as shown by the chain line in FIG.
Since the principles are the same, for convenience of explanation, the receiving portion 8', ball bearing 9, etc. are omitted in FIG. 6, and the stopper 5e is shown in a state locked to the ratchet 2. At this point, the clockwise rotational force applied to the ratchet 2 becomes zero. Also, as shown in the second figure, at this time the receiving part 8' is connected to the ball bearing 9.
Since the hanging rod 5 has a rotational force due to inertia, the spiral strip 6 as shown in FIG.
It continues to rotate counterclockwise for a while together with the ratchet 2 that is screwed together. spiral strip 6
Since it is formed on the hanging rod 5, the player hanging from it naturally descends while rotating, and furthermore, it continues to rotate for a while after the descent is completed.

Next, after the game is over, when the player releases his hand from the horizontal grip part 5b, the coil spring 7 expands, the hanging rod 5 immediately rises, and the spiral thread 6 passing through the spiral hole 3 causes the ratchet 2 rotates counterclockwise (in FIG. 3) while pushing the reverse stopper claw 4 into the small window 15 as shown in FIG.

In this way, in this invention, the ratchet, which is prevented from rotating in one direction by the anti-reverse pawl, passes through the spiral hole, and the spiral thread formed on the hanging rod is threaded through the spiral hole, so that the ratchet is prevented from rotating in one direction by the non-returning claw. Of course, it rotates and descends, but unlike the conventional example, the spiral thread slides onto the so-called spiral hole, so it does not deform due to the load and there is no risk of the hanging rod tilting inside the cylinder. ,
It has extremely high mechanical strength and rotates smoothly, there is no risk of misalignment of the parts, and there is no need for high-precision manufacturing.Moreover, this invention does not engage the non-return pawl with the teeth of the ratchet by spring pressure. Teeth are formed on the upper surface of the ratchet, which can be rotated horizontally, and the anti-reverse pawl is caused to protrude downward under its own weight from above the ratchet and engages with the teeth.
There is no inconvenience such as the spring pressure decreasing due to long-term use or the spring becoming deformed and losing its anti-reverse effect.
This invention is highly durable, reduces the number of parts, and can be manufactured at low cost.Also, this invention winds a coil spring around a spiral strip, and provides the upper end to a receiving part integrated with the spiral strip and the lower end to a ball bearing. Therefore, after the hanging rod has descended, if you release your hand, it will automatically return to the upper position.

[Brief explanation of drawings]

The figures show an example of this invention. Figure 1 is a front view in use, Figure 2 is an enlarged longitudinal sectional front view of the main part, Figure 3 is an enlarged sectional view taken along line A-A, and Figure 4 is a reverse stopper. , FIG. 5 and FIG. 6 are enlarged perspective views for explaining the functions of the main parts, FIG. 7 is a perspective view of the universal joint and the hook, and FIG. 8 is a longitudinal cross-sectional front view of the main parts of the prior art. . 1... cylinder body, 2... ratchet, 2'... tooth,
3... Spiral hole, 4... Reverse stopper claw, 5... Hanging rod, 6... Spiral strip, 7... Coil spring,
8... Receiving part, 9... Ball bearing.

Claims (1)

[Claims] 1. A ratchet 2 with teeth 2' formed on its upper surface is horizontally rotatably provided in the cylinder 1, and a spiral hole 3 is passed through the ratchet 2, and a non-return pawl 4 is projected downward by its own weight from above the ratchet 2. and mesh with the teeth 2' of the ratchet 2, form a spiral thread 6 on the hanging rod 5, thread the spiral thread 6 into the spiral hole 3, wind the coil spring 7 around the spiral thread 6, and attach the upper end to the spiral thread. A hanging rotary toy characterized by being provided on a ball bearing 9 whose lower end is provided in a cylinder 1 to an integral receiving part 8.