JP7545217B2 - Crane toy - Google Patents

Description

The present invention relates to a crane toy.

A conventional crane toy is described in Patent Document 1. In this toy crane, a pair of bucket pieces are supported by a support shaft so that they can swing freely, and the support shaft is supported by a long hole drilled into a hanging plate that is integral with a tubular member attached to the lower end of the hoisting wire. The other end bent part of the swinging plate, both ends of which are supported approximately in the middle of the bucket, is pivotally supported below the long hole in the hanging plate, and this other end bent part is configured to be approximately vertical when the bucket is opened.

Japanese Utility Model Publication No. 52-46238

In a crane toy of this structure, the bucket is normally in a closed state, and when the bucket is lowered, the lower end of the holding part hits the object, and when the bucket is lowered again, the holding arms open. In this state, the object is held inside, and the upper end of the object hits the end of the bent part of the rocking plate, pushing said end up, and the support shaft moves up, closing the holding arms.
However, this requires a rocking plate having a long hole or a bent portion, and the structure is complicated. Therefore, a crane toy having a simpler structure is desired.
The present invention has been made in consideration of the above-mentioned circumstances, and has an object to provide a crane toy with a simple structure.

The first means is
a bucket, each of a pair of bucket pieces being configured to be rotatable about a predetermined horizontal axis, the pair of bucket pieces being brought into a closed state and an open state by the rotation of the bucket pieces, and the pair of bucket pieces being brought into a closed state by their own weight in a normal state;
A support member to which the bucket is attached;
A lifting device that lifts and lowers the bucket;
Equipped with
a sliding contact portion is formed on the lower side of each of the pair of bucket pieces, the sliding contact portion being inclined so as to face inward and diagonally downward of the bucket and causing the pair of bucket pieces to be in an open state by sliding contact with the bucket as it descends when the bucket hits an object from above ,
The lifting device is configured to lower the bucket so that the pair of bucket pieces come into sliding contact with the object and are in an open state, and to lift the bucket so that the pair of bucket pieces come into a closed state and capture the object,
The support member is configured to be rotatable within a range of 90 degrees around a vertical second axis so as to take a first position at which the target object is captured and a second position different from the first position in a plan view;
the bucket is configured to revolve 90 degrees around the second axis and rotate 90 degrees around a vertical first axis when the support member rotates 90 degrees around the second axis,
Furthermore, a protrusion is provided on an outer surface of the bucket to open the pair of bucket pieces when an external force is applied from below,
The obliquely extending support member is provided with a protrusion against which the protrusion abuts during descent of the bucket when the bucket is in the second position.
It is characterized by:

The second means is the first means, characterized in that the lower side of the bucket is composed of a plurality of scooping pieces arranged side by side with gaps between them .

The third means is the first or second means, characterized in that the bucket is supported by the support member and attached to a rod-shaped member that operates to allow the bucket to be raised and lowered .

The fourth means is any of the first to third means, characterized in that the bucket is attached to a rod-shaped member that is attached to the support member and operates to allow the bucket to be raised and lowered, the rod-shaped member is composed of a cylindrical body configured to be telescopically extendable and retractable, the bucket is connected to one end of a string that is passed through the cylindrical body, and the lifting device raises and lowers the bucket in conjunction with the operation of the rod-shaped member by tensioning and relaxing the string .

The fifth means is the fourth means, characterized in that an elastic body is contained in the string body .

The sixth means is the fourth or fifth means, characterized in that a coil spring is hung on the middle part of the string, the string is folded back at the coil spring in a taut state, and the end opposite the bucket is fixed to a fixing part, and the string is tensioned or relaxed by operating the coil spring.

The seventh means is any one of the first to sixth means, characterized in that it includes a contact portion against which the bucket abuts when the bucket is raised, causing the pair of bucket pieces to maintain a closed state .

According to the first and second means, when the bucket is lowered, the sliding contact portion comes into sliding contact with the object, opening the bucket, and then when the bucket is raised, the bucket closes , capturing the object. In this way, the structure is extremely simple, since it is only necessary to provide a sliding contact portion at the bottom end of the bucket.
Furthermore, when the bucket is lowered at the second position, the bucket is opened and the captured object can be released.
In addition, when the support member rotates, the bucket changes direction, so that the object can be captured in the appropriate direction.
In addition, when the support member rotates 90 degrees, the bucket rotates 90 degrees on its axis, so that the object can be released in the same orientation as when it was captured or in the opposite orientation.

According to the second means , the bucket is composed of a plurality of scooping pieces arranged side by side with gaps between them, so that when the target object is a toy car, the wheels of the toy car slip into the gaps between adjacent scooping pieces, making it easy to capture the toy car.

According to the third means , since the bucket is attached to a rod-shaped member that operates to allow the bucket to rise and fall, lateral shaking is reduced and the target object can be reliably captured at the desired position.

According to the fourth means, the bucket is raised and lowered by tensioning and relaxing the string body, so that the structure is extremely simple.

According to the fifth aspect, since the string contains an elastic body, the impact applied to the string during operation is mitigated.

According to the sixth aspect, since the folded-back portion of the string is operated via the coil spring, the stroke of the bucket can be made larger than the stroke of the coil spring.

According to the seventh aspect, when the bucket that has captured the object is raised, the object can be reliably continued to be held.

FIG. 2 is a perspective view of the crane toy according to the embodiment, seen from the side. FIG. 2 is a perspective view of the toy crane from the rear side. FIG. 2 is a perspective view of the toy crane seen from below. FIG. 2 is a side view of the toy crane exposing the mechanism within the support member. FIG. 4 is a perspective view of a part of a mechanism inside the support member as viewed from the side. FIG. 4 is a side view of a bucket and a rod-shaped member. 13 is a side view of the bucket and the rod member when the rod member is extended. FIG. FIG. FIG. 2 is a perspective view of the bucket as viewed from below. FIG. 4 is a side view showing the operation of the bucket. FIG. 4 is a side view of the internal structure of the support member. FIG. FIG. 2 is a side view of the main body with a portion of the loading platform cut away.

The following describes an embodiment of the present invention with reference to the attached drawings.

(Overall composition)
FIG. 1 is a perspective view of a crane toy 100 according to an embodiment as viewed from the side, and FIG. 2 is a perspective view of the crane toy 100 in use as viewed from the rear.
The toy crane 100 of the embodiment includes the toy crane 10 on the main body 50. The toy crane 10 includes a bucket 30 consisting of a pair of bucket pieces 31 and 32. To capture an object (e.g., a toy car) 90 with the toy crane 100 in the state shown in FIG. 1, the stationary plate 51 of the main body 50 of the toy crane 100 is turned sideways (FIG. 2), and the object 90 is placed on the stationary plate 51. Next, the support member 15 of the toy crane 10 is rotated 90 degrees clockwise in a plan view by hand (FIG. 2). At this time, the bucket 30 rotates 90 degrees relative to the support member 15. As a result, the front and rear of the pair of bucket pieces 31 and 32 are swapped. Up to this point, the lever 13 attached to the support member 15 is located on the lower end side of the support member 15.
Next, button 12 at the bottom end of support member 15 is pressed. This causes lever 13 located at the bottom end of support member 15 to move upward along support member 15, and bucket 30 to descend. When bucket 30 hits object 90, a pair of bucket pieces 31, 32 open and grab object 90. Lever 13 is then pulled down by hand to its original position on the bottom end side of support member 15. This causes bucket 30, gripping object 90, to rise.
Next, the support member 15 is rotated 90 degrees in the opposite direction to the previous rotation. This returns the pair of bucket pieces 31, 32 to their original front and rear positions. When the button 12 is pressed again in this position, the bucket 30 descends, the pair of bucket pieces 31, 32 open, and the object 90 falls onto the loading platform 52 of the toy crane 100. The object 90 that has fallen onto the loading platform 52 can be ejected rearward by operating the lever 53 of the main body 50 of the toy crane 100.

(Detailed composition)
1. Crane Toy 10
3 is a perspective view of the toy crane 10 as viewed from below, and FIG. 4 is a side view of the toy crane 10 in which the internal structure of the support member 15 is exposed.
The toy crane 10 has a plate-shaped base plate 14. The toy crane 10 is attached to the main body 50 of the toy crane truck 100 by fitting the base plate 14. The base plate 14 is provided with a support member (boom) 15 that extends obliquely upward and has an upper end that is bent horizontally. A bucket 30 is supported on the upper end of the support member 15 via a rod-shaped member 26. The support member 15 is provided rotatably with respect to the base plate 14.

FIG. 5 is a perspective view of a part of the internal structure of the support member 15 as viewed from the side.
A shaft 17 extending in the vertical direction is fixed to the base plate 14 at the lower end inside the support member 15. A disk 18 and a gear 19 are fixed to the shaft 17. A rack member 20 is also installed on the disk 18 inside the support member 15. When the support member 15 rotates around the shaft 17, the rack member 20 rotates around the shaft 17 following the rotation of the support member 15. Teeth 20a of the rack member 20 mesh with the gear 19.

A rotating member 21 is provided in the middle of the support member 15. The rotating member 21 is attached to the support member 15 at its longitudinal center via a shaft 21a (Figure 4). The lower end of the rotating member 21 extends to the lower end of the support member 15 and is connected to one end of the rack member 20 by engagement between a pin and a long hole. The upper end of the rotating member 21 extends close to the upper end of the support member 15.

A rack member 22 is provided at the upper end of the support member 15. The upper end of the rotating member 21 is connected to the other end of the rack member 22 by engagement between a pin and a long hole. A disk 23 and a gear 24 are provided at the upper end of the support member 15. The gear 24 meshes with the teeth 22a of the rack member 22.

FIG. 6 is a side view of the rod member 26 and the bucket 30 when the rod member 26 is contracted, and FIG. 7 is a side view of the rod member 26 and the bucket 30 when the rod member 26 is extended.
A rod-shaped member 26 is fixedly provided under the disk 23. The rod-shaped member 26 is rotatably supported by the support member 15. The rod-shaped member 26 is composed of five cylindrical parts 26a, 26b, 26c, 26d, and 26e. The outer diameters of the five cylindrical parts 26a, 26b, 26c, 26d, and 26e are gradually reduced in this order, and the other cylindrical parts 26b, 26c, 26d, and 26e are nested in the cylindrical part 26a with the largest diameter. The rod-shaped member 26 composed of the five cylindrical parts 26a, 26b, 26c, 26d, and 26e is configured to be telescopically extendable. Since a bucket 30 is attached to the rod-shaped member 26, lateral shaking is reduced, and the target object can be reliably captured at a desired position. The rod-shaped member 26 does not have to be telescopically extendable. It may be one that moves up and down as the bucket 30 rises and falls.
In addition, the lower end of the cylindrical portion 26a with the largest diameter forms an abutment portion, against which the upper side portions 31a, 32a of the pair of bucket pieces 31, 32 abut when the bucket 30 is raised, thereby ensuring that the object can continue to be held.

FIG. 8 is a side view of the bucket 30.
The bucket 30 is fitted with a disk 27 fixed below the cylindrical portion 26e.
That is, bucket piece 31 is attached to disk 27 via shaft 28a. Bucket piece 31 is composed of upper side portion 31a extending horizontally, oblique side portion 31b extending diagonally downward and outward from the tip of upper side portion 31a, side side portion 31c extending downward from the tip of oblique side portion 31b, and lower side portion 31d extending inward from the lower end of side side portion 31c. In this case, although it depends on object 90, it is preferable that the tip of lower side portion 31d is tapered so that it can get under object 90 and scoop it up.
In addition, the disk 27 is attached to the bucket piece 32 via the shaft 28b. The bucket piece 32 is composed of an upper side portion 32a extending horizontally, an oblique side portion 32b extending diagonally downward and outward from the tip of the upper side portion 32a, a side side portion 32c extending downward from the tip of the oblique side portion 32b, and a lower side portion 32d extending inward from the lower end of the side side portion 32c.
The bucket 30 is configured by two bucket pieces 31, 32 facing each other so that the inner sides of the side portions 31c, 32c face each other.

FIG. 9 is a perspective view of the bucket 30 as viewed from below.
The bottom side 31d of the bucket piece 31 is composed of three scooping pieces 311, 312, 313 arranged in a fork-like shape with gaps in between in the width direction. The middle scooping piece 312 has a sliding contact portion 31f formed with a gap between three protrusions arranged in the width direction. On the other hand, the bottom side 32d of the bucket piece 32 is composed of three scooping pieces 321, 322, 323 arranged in a fork-like shape with gaps in between in the width direction. The middle scooping piece 322 has a sliding contact portion 32f formed with a gap between three protrusions arranged in the width direction. By forming the bottom side portions 31d, 32d of the bucket pieces 31, 32 in a fork-like shape, when the target object 90 is a toy car, the wheels of the toy car can fit into the gaps between the adjacent scooping pieces, making it easier to capture the toy car.
Each of the sliding contact portions 31f, 32f protrudes from the lower side portions 31d, 32d in a substantially right-angled triangular shape, and one side other than the hypotenuse is connected to the lower side portions 31d, 32d of the corresponding bucket section 31, 32 so that the hypotenuse faces inwardly and diagonally downward. Each hypotenuse extends to the inner end of the lower side portions 31d, 32d of the corresponding bucket section 31, 32. In the bucket sections 31, 32, the distances from the shafts 28a, 28b to each point of the sliding contact portions 31f, 32f are the same, or the distances gradually decrease toward the inside of the bucket 30. The point is that when the sliding contact portions 31f, 32f come into contact with the object 90, a force moment in an opening direction is generated in the bucket 30.
Furthermore, in the bucket sections 31, 32, protrusions 31g, 32g that extend outward from the oblique sides 31b, 32b are provided at the corners between the oblique sides 31b, 32b and the side sides 31c, 32c. The protrusions 31g, 32g serve to open the pair of bucket sections 31, 32 when an external force is applied from below.

FIG. 10 is a side view showing the operation of the bucket 30.
When the bucket 30 descends, first, the sliding contact portions 31f, 32f of the pair of bucket sections 31, 32 come into contact with the corners of the object 90 (position A in FIG. 10). When the bucket 30 descends further, the sliding contact portions 31f, 32f open while sliding against the corners of the object 90, and the tips of the lower side portions 31d, 32d come into contact with the corners of the object 90 (position B in FIG. 10). When the bucket 30 descends further, the sliding contact portions 31f, 32f come into sliding contact with the front and rear surfaces of the object 90, and the tips of the lower side portions 31d, 32d slip under the object 90, and the pair of bucket sections 31, 32 are closed (position C in FIG. 10).

FIG. 11 is a side view showing the lifting device 40 that lifts and lowers the bucket 30. As shown in FIG.
The toy crane 10 is provided with a lifting device 40 for lifting and lowering the bucket 30 .
The lifting device 40 includes a string 41, a coil spring 42, a button 12, and a lever 13. The string 41 is passed through the inside of the rod-shaped member 26 from the support member 15 side, and one end of the string 41 is connected to the bucket 30. On the support member 15 side, the string 41 is wound around a part of the roller 45, and then passed through a hook 42a at one end of the coil spring 42, and the other end of the string 41 is fixed to a fixing portion 15a inside the support member 15.
FIG. 12 is a perspective view of the lever 13 and the button 12 as viewed from above.
The other end of the coil spring 42 is connected to a spring hook 13a of the lever 13. The lever 13 is capable of moving up and down along the back plate of the support member 15. A claw 13b is formed on the lever 13. The claw 13b is located inside the support member 15.
The button 12 is configured to be retractable relative to the support member 15, and is biased in the protruding direction by a coil spring (not shown). The base end of the button 12 is located inside the support member 15, and a rectangular plate-shaped locking piece 12a is attached to it. The locking piece 12a has an opening 12b into which the claw 13b enters when the lever 13 moves downward. When the lever 13 moves downward, the claw 13b locks onto the edge of the opening 12b. When the button 12 is pressed in this state, the claw 13b disengages from the edge of the opening 12b, and the lever 13 moves upward as the bucket 30 moves downward.

2. Main body 50
FIG. 13 is a perspective view of a portion of the rear part of the main body 50 as viewed from the side.
A lever 53 is provided protruding from the right side rear of the main body 50 of the toy crane 100. This lever 53 is configured to be movable in the front-rear direction and is connected to a cross bar 54 extending in the width direction below the loading platform 52. The cross bar 54 supports the loading platform 52, one end of which is supported by the shaft 52a, from below. That is, an inclined sliding portion 52b is formed below the loading platform 52, and the cross bar 54 abuts against this inclined sliding portion 52b from below. When the lever 53 is operated forward, the loading platform 52 tilts downward toward the rear. When an object 90 on the loading platform 52 is discharged from the loading platform 52, the rear door 55 opens around the shaft 55a at the upper end as the object 90 hits the rear door. As a result, the object 90 is discharged to the rear of the main body 50.

(Modification)
Although the embodiment of the present invention has been described above, it goes without saying that the present invention is not limited to the above embodiment and various modifications are possible.
For example, in the above embodiment, the support member 15 and the bucket 30 are operated manually, but they may be operated electrically.

In addition, in the above embodiment, the rod-shaped member 26 is configured to be telescopically extendable and retractable, but a non-retractable rod-shaped member may be used and moved up and down when the bucket 30 is raised and lowered.

In addition, in the above embodiment, the string 41 may contain an elastic body such as rubber or a coil spring. Furthermore, rubber or the like may be provided instead of the coil spring 42.

In addition, in the above embodiment, the bucket 30 is raised and lowered using the string 41, but the bucket 30 may also be raised and lowered by operating a rod-shaped member.

10 Crane toy 13 Lever 15 Support member 15a Fixed portion 26 Rod-shaped member 27 Disk 30 Bucket 31, 32 Bucket pieces 31f, 32f Slide contact portion 31g, 32g Protrusion 40 Lifting device 41 Cord body 42a Hook 50 Main body 51 Fixed plate 52 Cargo platform 52b Inclined slide contact portion 55 Rear door 90 Object 100 Crane toy

Claims (7)

a bucket, each of a pair of bucket pieces being configured to be rotatable about a predetermined horizontal axis, the pair of bucket pieces being brought into a closed state and an open state by the rotation of the bucket pieces, and the pair of bucket pieces being brought into a closed state by their own weight in a normal state;
A support member to which the bucket is attached;
A lifting device that lifts and lowers the bucket;
Equipped with
a sliding contact portion is formed on the lower side of each of the pair of bucket pieces, the sliding contact portion being inclined so as to face inward and diagonally downward of the bucket and causing the pair of bucket pieces to be in an open state by sliding contact with the bucket as it descends when the bucket hits an object from above ,
The lifting device is configured to lower the bucket so that the pair of bucket pieces come into sliding contact with the object and are in an open state, and to lift the bucket so that the pair of bucket pieces come into a closed state and capture the object,
The support member is configured to be rotatable within a range of 90 degrees around a vertical second axis so as to take a first position at which the support member captures the object and a second position different from the first position in a plan view;
the bucket is configured to revolve 90 degrees around the second axis and rotate 90 degrees around a vertical first axis when the support member rotates 90 degrees around the second axis,
Furthermore, a protrusion is provided on an outer surface of the bucket to open the pair of bucket pieces when an external force is applied from below,
The obliquely extending support member is provided with a protrusion against which the protrusion abuts during descent of the bucket when the bucket is in the second position.
A crane toy characterized by the above. The toy crane according to claim 1, characterized in that the bottom part of the bucket is made up of multiple scooping pieces arranged side by side with gaps between them. The toy crane according to claim 1 or 2, characterized in that the bucket is supported by the support member and is attached to a rod-shaped member that operates to allow the bucket to be raised and lowered. The toy crane according to any one of claims 1 to 3, characterized in that the bucket is attached to a rod-shaped member that is attached to the support member and operates to allow the bucket to be raised and lowered, the rod-shaped member is made of a cylinder configured to be telescopically extendable and retractable, the bucket is connected to one end of a string that is threaded through the cylinder, and the lifting device lifts and lowers the bucket by tensioning and relaxing the string, accompanied by the operation of the rod-shaped member. The toy crane according to claim 4, characterized in that the string contains an elastic body. The crane toy according to claim 4 or 5, characterized in that a coil spring is hung in the middle of the string, the string is folded back at the coil spring in a tensed state, and the end opposite the bucket is fixed to a fixed part, and the string is tensioned or relaxed by operating the coil spring. The toy crane according to any one of claims 1 to 6, characterized in that it has a stopper portion that the bucket hits when the bucket is raised, and keeps the pair of bucket pieces in a closed state.

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