JP3110937U - Rod-shaped component and motion conversion mechanism using rod-shaped component - Google Patents

Abstract

[PROBLEMS] A rod-shaped component and a motion that can embody a creator's free ideas and can be used more freely and versatilely in robot production for creative toys and robot contests in school education. Provides a conversion mechanism.
A rod-shaped component member 10 for use in a toy, wherein a plurality of holes 11 are provided at predetermined intervals along the length direction, and a guide portion 12 is provided along the length direction. Yes.
[Selection] Figure 1

Description

  The present invention relates to a rod-shaped component and a motion conversion mechanism using the rod-shaped component, and more particularly to a rod-shaped component that can be used for various purposes in a creative toy and the like and a motion conversion mechanism using the rod-shaped component.

  Traditionally, assembled toys have been used as teaching materials in elementary and junior high school education. On the other hand, so-called robot contests have been held for junior high school students to university students. Has been done.

In manufacturing robots for such assembly toys and robot contests, robots are manufactured by freely assembling various components according to the students' individual thoughts.
From this point of view, there have been conventionally proposed elongated plate-like components for assembled toys having a large number of holes that can be used for various purposes (Patent Document 1, Patent Document 2, Patent Document 3). .

That is, in these known documents, a chassis of a traveling vehicle is formed by fixing the plurality of structural members with bolts and nuts in the holes, and the structural members are secured with bolts and nuts through the holes. A technique capable of forming various link mechanisms by being fixed so as to be rotatable is disclosed.
No. 02-4708 No. 04-2717 No. 04-25199

In the education using the assembled toy as the teaching material as described above, it is required as an important process to create and use the assembled toy by various methods based on the free idea of each student.
Also, in the production of robots in the above robot contest, each student can freely create ideas and create a robot that matches the game format of the robot contest by combining various work parts.

However, since the conventional structural member as described above is only provided with a large number of holes in the elongated plate-shaped structural member, it is joined through the hole to form some structural member, In addition, it is possible to form a link mechanism by being rotatably coupled through the hole, and to create a model or a robot using the link mechanism, but it cannot be used for other than the above. For this reason, there has been a problem that it is not possible to sufficiently meet the demands for assembly toys that should be originally produced from free ideas and various forms of robots.
As a result, it has also hindered the realization of the free ideas of students and students, which is the original purpose of the machine work class and robot contest.

  Therefore, the problem to be solved by the present invention is that it is possible to embody the creator's free ideas in the production of robots for creative toys and robot contests in school education. An object of the present invention is to provide a rod-shaped component and a motion conversion mechanism that can be used.

  In order to solve such a technical problem, the invention described in claim 1 is a rod-shaped component 10 used for a toy, and a plurality of holes 11 are provided at predetermined intervals along the length direction. And a guide portion 12 is provided along the length direction.

Accordingly, the holes 11 provided in the rod-shaped component 10 are fixed to each other with bolts and nuts to create a chassis of a toy car body, or the rod-shaped component 10 is bolted and nuts through the holes 11. Various mechanisms can be formed by connecting them so as to be rotatable.
Moreover, since the said rod-shaped structural member 10 is guided along the length direction by the said guide part 12, the said rod-shaped structural member 10 is used as a chassis of a toy vehicle body, or a structural member used as various link mechanisms. In addition to the above-mentioned applications, it can also be used as a bar-shaped component 10 of various mechanisms that are guided and used along the length direction.

The device according to claim 2 is used for a toy, and is a rod-shaped component member in which a plurality of hole portions 11 are provided at predetermined intervals along the length direction and a guide portion 12 is provided along the length direction. And a drive unit 14 capable of driving the driven unit 13 along the length direction.
Therefore, the driven unit 13 can be driven in the length direction by the driving unit 14.

The invention described in claim 3 is characterized in that the driven portion 13 is composed of a rack 16 and the driving portion 14 is composed of a pinion gear 17.
Accordingly, the rack 16 is driven while being engaged with the pinion gear 17.

The invention described in claim 4 includes a holder portion 18 having a holding portion 19 capable of holding the rack 16.
Therefore, the rack 16 is held by the holding portion 19 of the holder portion 18.

The invention described in claim 5 is characterized in that the rack 16 is formed so as to move in the holding portion 19 when the pinion gear 17 rotates.
Therefore, even if the driving force is transmitted to the rack 16 by the rotation of the pinion gear 17, the pinion gear 17 is held so as to move in the holding portion 19.

According to a sixth aspect of the present invention, the guide portion 12 is a groove portion 20 provided along the length direction, and the holding portion 19 is engaged with the groove portion 20 so that the rack 16 is moved along the length direction. It is characterized by being formed as a convex portion 21 that can be guided.
Therefore, the convex portion is engaged with the groove portion 20, and the rack 16 is held by the groove portion 20 so that it can be guided along the length direction of the rack 16.

  According to a seventh aspect of the present invention, the rack 16 is formed in the shape of an elongated plate having a rectangular cross section, and the groove portions 20 are provided on the both side surfaces of the rack 16 so as to be opposed to each other along the length direction. A tooth portion 22 is provided along a length direction on a side surface adjacent to the surface, the holder portion 18 is formed in a U-shaped cross section, and is perpendicular to the bottom surface portion 23 and both side edge portions of the bottom surface portion 23. The convex portions 21 and 21 are provided on the inner side surfaces of the side surface portions 24 and 24 so as to face each other, and the rack 16 is provided with the holding portion 19. The protrusion 21 is engaged with the groove 20 when inserted into the groove 20.

Therefore, the rack 16 is held in a holding portion 19 formed by a bottom surface portion 23 and both side surface portions 24, 24 provided in the holder portion 18.
Moreover, the said convex part 21 and the said groove part 20 are formed along the length direction, and the said convex part 21 and the said groove part 20 are each engaged.

In the invention according to claim 8, the rack 16 is provided with a plurality of cutting slits 25 along the width direction, and the cutting slits 25 are formed in the rack 16 in the length direction of the rack 16. It is provided at the same position as each of the holes 11 provided.
Therefore, the rack 16 can be bent along the cutting slit 25. Further, the cutting slit 25 can be used as a guide when cutting the rack 16.

According to the ninth aspect of the present invention, a plurality of the hole portions 11 are provided in the central portion in the width direction of the rack 16 at the same interval along the length direction, and the rack 16 is held by the holder portion 18. When inserted into the portion 19, a hole portion 28 that can communicate with the hole portion 11 provided in the rack 16 is formed.
Therefore, the hole 11 of the rack 16 and the hole 28 of the holder 18 can be inserted and coupled by screws or bolts.

The invention described in claim 10 is characterized in that a slit 27 penetrating the both side surface portions is formed between each hole portion 28 formed in the holder portion 18.
Therefore, the holder part can be cut and used in the slit 27.

Since this invention is comprised as mentioned above, there exist the following effects.
According to the first aspect of the invention, the holes 11 provided in the rod-shaped component 10 are fixed to each other with bolts and nuts to create a chassis of a toy vehicle body, or the rod-shaped component 10 is Various mechanisms can be configured by being rotatably coupled by bolts and nuts via the portion 11.

  Moreover, since the said rod-shaped structural member 10 is guided along the length direction by the said guide part 12, the said rod-shaped structural member 10 is used as a chassis of a toy vehicle body, or a structural member used as various mechanisms. It can be used not only for the above-mentioned purposes but also as the rod-shaped component 10 guided along the length direction.

  Therefore, it can be used not only for the chassis of the above toy and various link mechanisms, but also for more versatile use. Therefore, it is free for the producer in creating creative toys for school education and robots for robot contests. Can realize the idea.

  According to the second aspect of the present invention, the driven portion 13 can be driven in the length direction by the driving portion 14. Therefore, the driving force of the driving unit 14 can be used as a motion conversion mechanism 15 that can convert the driving force of the driven unit 13 into a lengthwise motion.

  According to the third aspect of the present invention, the rack 16 is driven in mesh with the pinion gear 17, so that the rotational driving force of the pinion gear 16 is reliably transmitted to the rack 16 and converted into linear motion. Therefore, it can be used as the motion conversion mechanism 15 with high motion conversion efficiency.

  According to the fourth aspect of the present invention, since the rack 16 is held by the holding portion of the holder portion 18, even if the rack 16 is driven in the length direction by the pinion gear 17, the rack 16 can be held in the holder 18. Therefore, it is possible to reliably convert the rotational motion into a linear motion.

  According to the fifth aspect of the present invention, the pinion gear 17 is configured to move within the holding portion 19 even when the driving force is transmitted to the rack 16 by rotating the pinion gear 17. The rotational driving force can be used as the motion converting mechanism 15 that can accurately transmit the rotational driving force to the rack 16 and convert it into a linear motion.

According to the sixth aspect of the present invention, since the convex portion 21 is engaged with the groove portion 20, the rack portion 16 is held by the groove portion 20 so that it can be guided along the length direction of the rack portion 16. The
Therefore, even when the rack 16 is driven in the length direction by the driving force of the pinion gear 17, the rack 16 is prevented from dropping in a direction other than the length direction of the holder portion 18, The rotational motion of the pinion gear 19 can be reliably converted into a linear motion.

According to the seventh aspect of the present invention, the rack 16 is held in the holding portion 19 formed by the bottom surface portion 23 provided on the holder portion 18 and the both side surface portions 24, 24. Is surely prevented from falling off.
Since the convex portions 21 and 21 and the groove portions 20 and 20 are formed along the length direction, and the convex portions 21 and 21 and the groove portions 20 and 20 are engaged with each other, the pinion gear 17 is rotationally driven. The force is reliably converted into linear motion in the length direction of the rack 16.
Therefore, since the rack 16 stably moves in the length direction in the holding portions 19 and 19, it can be used as the motion conversion mechanism 15 that can operate stably.

According to the eighth aspect of the present invention, the rack 16 can be appropriately cut and used along the cutting slit 25, and the designer can easily form the rack 16 in an arbitrary length. Can do.
As a result, in the device according to the eighth aspect, the rack 16 can be freely used as a member constituting various mechanisms, and the degree of freedom to configure various mechanisms is increased.

Since the cutting slit 25 can be used as a guide when the rack 16 is cut, the rack 16 can be easily cut into an arbitrary length.
In addition, since the cutting slit 25 is provided at the same position as the hole 11, the labor for cutting can be reduced by the diameter of the hole 11, and the rack 16 can be easily cut.

According to the ninth aspect of the present invention, by inserting and fixing the hole 11 of the rack 16 and the hole 28 of the holder portion 18 with screws, bolts, or the like, the rack 16 is placed in the holder portion 18. Can be used in a fixed manner.
Further, the holder portion 18 is used as a fixing portion of the rack 16 by inserting the hole portion 11 of the rack 16 and the hole portion 28 of the holder portion 18 by screws, bolts, or the like so as to be rotatable. can do.

  According to the tenth aspect of the present invention, since the slit 27 is formed, the designer can arbitrarily set the length of the holder portion 18 by cutting and using the holder portion 18 in the slit 27. Can be formed to a length of Therefore, the holder part 18 can be used freely as a constituent member constituting various mechanisms.

  Hereinafter, based on the embodiment shown in an accompanying drawing, the motion conversion mechanism 15 using the rod-shaped structural member 10 concerning this invention and the rod-shaped structural member 10 is demonstrated in detail.

  As shown in FIGS. 1 and 2, the rod-shaped component 10 according to the present embodiment is a rod-shaped component 10 used for an assembly toy such as a robot used in a robot contest, and is along the length direction. A plurality of hole portions 11 are provided at predetermined intervals, and a guide portion 12 is provided along the length direction.

As shown in FIGS. 1 and 2, the motion conversion mechanism 15 according to the present embodiment is used in a toy, and a plurality of holes 11 are provided at predetermined intervals along the length direction, and in the length direction. A driven portion 13 made of a rod-shaped component 10 provided with a guide portion 12 along the guide portion 12 and a drive portion 14 capable of driving the driven portion 13 along the length direction.
In the present embodiment, the follower 13 includes a rack 16 and the drive unit 14 includes a pinion gear 17.

In the present embodiment, a holder portion 18 having a holding portion 19 that can hold the rack 16 is provided.
The rack 16 is formed so as to move in the length direction in the holding portion 19 when the pinion gear 17 rotates.
The guide portion 12 is a groove portion 20 provided along the length direction, and the holding portion 19 engages with the groove portion 20 and can project the rack along the length direction 21. It is formed as.

  As shown in FIG. 1, the motion conversion mechanism 15 according to the present embodiment is a rack and pinion mechanism, and is configured as a mechanism that converts the rotational motion of the pinion gear 17 into the linear motion of the rack 16.

  As shown in FIG. 2, the rack 16 is formed in an elongated plate shape having a rectangular cross section, and the groove portions 20, 20 are opposed to the side surface portions 59, 59 in the width direction of the rack 16 as a pair along the length direction. Is provided. The groove portions 20, 20 are formed over the entire length by the same width dimension at the center portion in the width direction of the rack 16, respectively.

  Further, the height direction both side surface portions 60, 60 are provided with tooth portions 22, 22 over the entire length in the entire width direction of the height direction both side surface portions 60, 60. A plurality of hole portions 11 are provided at equal intervals in the groove portions 20 and 20 of both side surface portions 59 and 59 in the width direction of the rack 16 along the length direction.

  As shown in FIGS. 1 and 2, the grooves 20 and 20 are formed in a shape having a radius of curvature substantially the same as the semicircular shape of the convex portions 21 and 21 formed in a semicircular cross section. Yes.

The width direction opposite side surface portions 59, 59 of the rack 16 are provided with slits 25 for cutting along the width direction at the diameter positions of the respective hole portions 11, and are cut at appropriate positions to be desired. It is formed so that it can be used with a length of.

In the present embodiment, the width of the rack 16 is 12 mm, and the width of the groove 20 and the hole 11 is 3 mm. In this embodiment, the holes 11 are provided at intervals of 5 mm.
As shown in FIG. 1, the tooth portions 22 and 22 of the rack 16 are configured to mesh with the pinion gear 17 in which the tooth portions 53 are formed at the same pitch as the tooth portions 22 and 22. .

  The rack 16 as the rod-shaped component 10 is formed of a plastic material, and the rack 16 is formed in an elongated plate shape having a rectangular cross section.

As shown in FIG. 1, in the rack and pinion mechanism constituting the motion conversion mechanism 15 according to the present embodiment, the rack 16 is housed in a holder 18.

As shown in FIG. 3, the holder 18 is configured as an overall channel-shaped member having a predetermined length dimension.
In other words, it has a U-shaped cross section, and has a bottom surface portion 23 and side surface portions 24, 24 extending at right angles from both side edge portions of the bottom surface portion 23. The side portions 24 and 24 face each other with a predetermined interval, and have a gap portion therebetween.

  The distance L2 between the pair of side surfaces 24, 24 is formed to have a width that is slightly larger than the thickness L1 of the rack 16, and the inner side surfaces 61 of the side surfaces 24, 24 facing each other. 61 is formed to be the same as the width L4 between the lower edge 62 in the width direction of the rack 16 and the portion 63 directly below the tooth portion 22a disposed on the upper side.

  Further, as shown in FIG. 3, convex portions 21 and 21 are formed on the inner side surface portions 61 and 61 of the side surface portions 24 and 24 of the holder portion 18 so as to be opposed to each other in the entire length direction. A width dimension L5 of the convex portions 21 and 21 is formed to be the same width dimension as a width dimension L6 of the groove portion 20, and an inner surface portion 65 of the bottom surface portion 23 and an upper end edge portion 66 of the convex portions 21 and 21 are formed. The width dimension L7 is formed to be the same as the width dimension L3 between the lower edge 62 in the width direction of the rack 16 and the upper edge 20a of the groove 20.

  As shown in FIG. 3, the side portions 24, 24 are formed with slits 27 at predetermined intervals along the length direction, and individual holder portions 18a, 18b, 18c, 18d are formed by these slits 27. If necessary, the individual holder portions 18a, 18b, 18c, and 18d are cut by the slit 27 so that they can be used for other purposes such as bearings.

  As shown in FIG. 3, the individual holder portions 18a, 18b, 18c, and 18d have the same width as the rack 16, and each of the holder portions 18a, 18b, 18c, and 18d has a width. A hole 28 is formed at the center in the width direction.

The hole 28 has the same height as the protrusions 21 and 21 and is opened at a portion that can communicate with the plurality of holes 11 provided in the rack 16.
In addition, fixing portions 33, 33 project from the side portions 24, 24 perpendicularly to the side portions 24, 24 at the center of the lower ends of the side portions 24, 24 of the holder portions 18a, 18b, 18c, 18d. It is formed so that it can be fixed to.

  Accordingly, when the motion converting mechanism 15 is formed using the rack 16 and the holder 18 configured as described above, as shown in FIG. The rack 16 is inserted into the fixed holder portion 18, and the rack 16 is used as the driven portion 13, and the pinion gear 17 that meshes with the rack 16 is used as the drive portion 14, and the rack and pinion mechanism is Constitute.

  As shown in FIG. 1, the pinion gear 17 has the teeth 53 formed at the same pitch as the teeth 22 of the rack 16 as described above, and the driving force is transmitted by the shaft 29 to rotate. It is configured to move.

Therefore, when the pinion gear 17 is engaged with the upper tooth portion 22a of the rack 16 while the rack 16 is held by the holder 18 as described above, the rack 16 is moved to any length by the rotation of the pinion gear 17. Move in the direction.
As a result, the motion conversion mechanism 15 is configured in which the rotational motion of the pinion gear 17 is converted into linear motion by the rack 16.

  As shown in FIG. 1, the rod-shaped component 10 according to the present embodiment is inserted into the holder portion 18 and is used by being driven in the length direction of the rod-shaped component 10 by the driving force of the pinion gear 17. It is used as a motion conversion mechanism 15 for assembly toys such as robots.

  In the present embodiment, the rack 16 is formed to have the above dimensions, but the dimensions are changed according to the size of the toy used, and is formed of a plastic material, but requires strength. When used in a toy, it may be a material having high rigidity such as metal.

Further, in the present embodiment, the drive unit 14 is formed by a pinion gear 17, but the drive unit 14 is formed on a material having frictional force such as rubber so that the drive force can be transmitted. May be.
When the driving unit 14 is formed of a material having frictional force such as rubber, the side surface 60 of the rack 16 constituting the driven unit 13 is formed as a flat surface.

  In this case, the driven portion 13 is driven in the length direction by the frictional force of the drive portion 14 by bringing the drive portion 14 into contact with the driven portion 13.

As shown in FIG. 3, the holder portion 18 has a holding portion 19 that can hold the rack 16. However, the holding portion 19 is provided over the entire region in the length direction of the holder portion 18. You don't have to.
As shown in FIG. 3, when the holder part 18 is divided into four parts by the slit 27, the holding part 19 is provided only in the holder parts 18a, 18d arranged on the outer side in the length direction. Also good.

  The cross-sectional shapes of the groove portions 20 and 20 and the convex portions 21 and 21 according to the present invention are not limited to the semicircular cross-sectional shape as described above, but may be a rectangular cross-sectional shape or a polygonal shape.

  Moreover, although the said groove part 20 is provided in the both sides | surfaces of the said rack 16, the said groove part 20 may be provided only in the one side surface among the said racks 16 (not shown).

In this case, the convex portion 21 is provided on the inner side surface of one side surface portion 24 of the both side surface portions 24, 24, and the groove portion 20 provided only on one side surface is provided on one side of the rack 16. Of the side surface of the rack 16 that is engaged with the convex portion 21 provided on the side surface portion 24 and is not provided with the groove 20, and of the side surface portions 24 and 24 of the holder portion 18, The inner side surface of the side surface portion 24 on which the convex portion 21 is not provided is in contact with each other.
Accordingly, in this case as well, the rack 16 is prevented from dropping from other than the length direction of the holding portion 19 of the holder portion 18.

  By fixing the holes 11 of the rod-shaped component 10 with bolts or nuts, a chassis of a toy car body is created, or the holes 11 are fixed rotatably so that the rod-shaped member has a link mechanism. It can be used as the component member 10 (not shown).

Hereinafter, based on the Example shown to an accompanying drawing, the effect | action of the motion conversion mechanism 15 using the rod-shaped structural member 10 which concerns on this invention and the rod-shaped structural member 10 is demonstrated in detail.
As shown in FIGS. 4 to 7, the rod-shaped component member 10 can be used as an assembly member that can be used for many purposes in assembly-type creative toys in school education and robot production for robot contests.

  As shown in FIG. 1, the rod-shaped component 10 according to the present embodiment is formed as a driven portion 13 composed of a rack 16, and serves as a motion conversion mechanism 15 that can be driven in the length direction by a drive portion 14 composed of a pinion gear 17. Can be used.

  As shown in FIG. 1, when the rack 16 is used as the motion conversion mechanism 15, the tooth portion 53 of the pinion gear 17 provided with the drive shaft portion 29 as the rotation center and the tooth portion 22 of the rack 16 are provided. When the pinion gears 17 are engaged with each other and the pinion gears 17 are rotated, the rotational force of the pinion gears 17 is transmitted to the rack 16 so that the racks 16 can be driven in the length direction.

  In this case, since the rack 16 is arranged in a direction orthogonal to the drive shaft portion 29 of the pinion gear 17, the driving force of the rotational movement generated by the rotation of the pinion gear 17 is used as the driving force. By transmitting to the rack 16 arranged in a direction orthogonal to the shaft portion 29, it can be used as the motion conversion mechanism 15 capable of converting into a linear motion.

  As shown in FIG. 1, when the rack 16 is inserted through the holding portion 19 provided in the holder portion 18, the rack 16 is provided on the both side surfaces of the rack 16 so as to face each other along the length direction. The groove portions 20, 20 are engaged between the convex portions 21, 21 provided to be opposed to each other on the inner side surfaces of the side surface portions 24, 24 of the holder portion 18.

  As shown in FIG. 4, the pinion gear 17 is pivotally supported on the drive shaft 29 of the prime mover 30, and the prime mover 30 is driven in a state where the tooth portion 53 of the pinion gear 17 is in contact with the tooth portion 22 of the rack 16. As a result, the pinion gear 17 is rotated, and the driving force generated by the rotation is transmitted to the rack 16.

  Therefore, as shown in FIG. 4, when the pinion gear 17 is rotated clockwise, the rack 16 is moved leftward, and when the pinion gear 17 is rotated counterclockwise, The rack 16 is moved in the right direction.

  Accordingly, the rack 16 is held so as to be movable in the length direction. When a driving force is applied to the rack 16 by the pinion gear 17, the rack 16 is moved in a smooth linear direction. .

  Further, a gear box, a shaft, or the like is disposed between the prime mover 30 and the pinion gear 17 (not shown), and the driving force of the prime mover 30 is transmitted to the pinion gear 17 via the gear box, the shaft, or the like. The rack 16 may be driven by rotating the pinion gear 17.

  As described above, when the holder portion 18 is divided into four by the slit 27 and the holding portion 19 is provided only in the holder portions 18a and 18d arranged on the outer side in the length direction, As shown in FIG. 3, the holder portion 18b on the inner side in the length direction is separated by the slit 27, and the holder portion 18b is separated from the rack 16 as shown in FIG. It can be used as the rack fixing portion 37 when used as a fixed shaft in the case of creating the like.

  As shown in FIG. 5, when the holder portion 18 is used as the rack fixing portion 37, one end portion in the length direction of the rack 16 is brought into contact with the bottom surface portion 23 of the holder portion 18, The hole portion 11 of the rack 16 and the hole portion 28 of the holder portion 18 are arranged to communicate with each other, and the holes 11 and 28 can be fixed with bolts or nuts.

  For each hole 11 provided in the rack 16 fixed to the rack fixing part 37, by fixing the hole 11 of the other rack 16 with a bolt or the like, it can be used as a base for an assembly toy. In addition, by fixing the hole portions 11 so as to be rotatable with bolts or the like, it can be used as a fixed shaft when various link mechanisms or the like are created.

  As shown in FIG. 6, the holder portion 18 is fixed vertically to the installation surface 58 and the fork portion 37 is provided on the rack 16, whereby the driving force of the driving portion 14 is increased in the vertical direction. It can be used as the unloading device 41 having the motion conversion mechanism 15 that can be converted.

As shown in FIG. 6, when the motion conversion mechanism 15 is used as the unloading device 41, the holder portion 18 is fixed to the substrate portion 40 arranged in the direction perpendicular to the placement surface 58.
The holder portion 18 can be fixed by inserting a bolt or a screw through the holder fixing hole portion 34 and fixing the bolt or screw to the substrate portion 40.

  The rack 16 is inserted into the holding part 19 of the holder part 18, and a fork part 37 arranged in a direction perpendicular to the length direction of the holder part is provided in the hole part 11 of the holder part 18. It is fixed with bolts, nuts, etc.

The pinion gear 17 is engaged with a driving gear 39 provided in the driving machine 30 and rotates.
Therefore, when the driving gear 39 is rotated by the driving force of the driving motor 30, the pinion gear 17 engaged with the driving gear 39 is rotated.

As the pinion gear 17 rotates, the tooth portion 53 of the pinion gear 17 meshes with the tooth portion 22 of the rack 16, and the rack 16 is moved in the vertical direction with respect to the mounting surface 58.
Referring to the example shown in FIG. 6, by rotating the driving gear 39 counterclockwise by the motor 30 and rotating the pinion gear 17 clockwise, the rack 16 is moved upward and the fork portion 37 is rotated. When the load is placed on the fork portion 37, it can be used as a loading device 41 that can lift the load upward.

Similarly, when the prime mover 30 is rotated clockwise by the prime mover 30 and the pinion gear 17 is rotated counterclockwise, the rack 16 is moved downward and the fork portion 37 is moved downward. Can do.
When the driving of the prime mover 30 is stopped, the rotation of the pinion gear 17 engaged through the driving gear 39 is also stopped. Therefore, the tooth portion 53 of the pinion gear 17 and the tooth portion of the rack 16 are stopped. The two racks 22 are engaged with each other, and the rack 16 stops.

  As shown in FIG. 7, when the motion conversion mechanism 15 is used as an interlocking device for a link mechanism 50 such as a robot, the rack 16 is inserted into the holding portion 19 of the holder portion 18, and the rack 16 is inserted into the rack 16. The tooth portion 48 of the driving spur gear 42 that can drive the link mechanism 50 is engaged with the provided tooth portion 22.

  The link mechanism 50 has a shaft that is rotatable by the driving spur gear 42, a driving rod-shaped member 43 connected and fixed to the driving spur gear 42, and the driving rod-shaped member 43 and the fixing shaft portion 71. And a supported follower rod-shaped member 44.

As shown in FIG. 7, the driving bar member 43 and the driven bar member 44 used as the link mechanism 50 are each formed by an elongated plate member, and a hole is formed along each length direction. 51 and 52 are provided at predetermined intervals.
A long hole portion 46 provided along the length direction is provided at an intermediate position in the length direction of the driven bar-shaped member 44.

The rack 16 according to the present embodiment is used for the driving bar member 43 and the driven bar member 44.
When the rack 16 is used as the driven rod-shaped member 44, the hole portions 52, 52 are scraped with a rod-shaped file, or the hole portions 52, 52 are cut using a cutting tool such as a cutter knife. Thus, the long hole portion 46 can be easily formed.

  As shown in FIG. 7, the driving spur gear 42 is provided in a semicircular shape, and the tooth portion 48 of the driving spur gear 42 provided in the semicircular shape meshes with the tooth portion 22 of the rack 16. It is arranged to meet.

  In the driving spur gear 42, a link mechanism rotating shaft portion 49 is inserted into a hole 51 a provided at the base end portion in the length direction of the driving rod-shaped member 43, and the driving spur gear 42 and The drive rod-like member 43 is fixed so as to be rotatable around the link mechanism rotation shaft portion 49.

The driving rod-shaped member 43 can be rotated by a fixing shaft portion 71 and a hole portion 52a provided in the driven rod-shaped member 44 in a hole portion 51b provided in the driving spur gear 42 side end portion. It is fixed to.
The driven rod-shaped member 44 is provided with a long hole portion 46 provided along the length direction. The driven rod-shaped member 44 is elongated by a long hole shaft portion 45 inserted into the long hole portion 46. It is pivotally supported so that it can move in the vertical direction.

Accordingly, as shown in FIG. 7, when the motion conversion mechanism 15 is used as an interlocking device for a link mechanism 50 such as a robot, the pinion gear 17 provided in the prime mover 30 is rotated clockwise, for example, to thereby rotate the pinion gear. The rack 16 engaged with the gear 17 is driven leftward in the figure in the length direction.
The tooth portion 48 of the driving spur gear 42 engaged with the tooth portion 22 of the rack 16 is rotated about the link mechanism rotation shaft portion 49.

  The drive bar-like member 43 stands upright in the drawing with the rotation of the drive spur gear 42 meshed with the rack 16, and the follower bar-like member 44 extends in the long hole 46. Guided by the hole shaft 45, the tip 72 is formed to move downward.

  When the pinion gear 17 of the prime mover 30 is rotated in the reverse direction, the drive rod member 43 and the follower rod member 44 move in directions opposite to the above, respectively, and the distal end portion 72 of the follower rod member 44 moves upward. Moving.

  The present invention can be applied to assembly members that can be used for various purposes in assembly-type creative toys in school education and robot production for robot contests.

FIG. 1 is an overall perspective view showing a motion conversion mechanism according to the present invention. FIG. 2 is an overall perspective view showing a rod-shaped component according to the present invention. FIG. 3 is an overall perspective view showing a holder portion according to the present invention. FIG. 4 is an overall side view showing a state in which the motion conversion mechanism according to the present invention is driven using a prime mover. FIG. 5 is an overall perspective view showing a state body using the motion conversion mechanism according to the present invention as a link bearing. FIG. 6 is an overall side view showing a state in which the motion conversion mechanism according to the present invention is used as a lifting device. FIG. 7 is an overall side view showing a state in which the motion conversion mechanism according to the present invention is used as an interlocking device for a link mechanism.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Rod-shaped component 11 Hole part 12 Guide part 13 Drive part 14 Drive part 15 Motion conversion mechanism 16 Rack 17 Pinion gear 18 Holder part 18a Holder part 18b Holder part 18c Holder part 18d Holder part 19 Holding part 20 Groove part 20a Upper end edge 21 Convex part 22 tooth part 22a tooth part 23 bottom face part 24 side face part 25 cutting slit 26 insertion groove part 27 slit 28 hole part 29 drive shaft part 30 motor 33 holder fixing part 34 holder fixing hole part 35 substrate 36 rack fixing part 37 fork part 39 driving force Gear 40 Substrate 41 Unloading device 42 Drive spur gear 43 Drive rod member 44 Drive rod member 45 Long hole shaft portion 46 Long hole portion 48 Tooth portion 49 Link mechanism rotating shaft portion 50 Link mechanism 51 Hole portion 52 Hole portion 53 Tooth part 58 Installation surface 59 Side part 60 Side part 61 Inner side part 62 Lower end edge part 3 directly below site 64 upper edge 65 in the surface portion 66 upper edge 71 fixing shank 72 distal end L1 thickness L2 spacing dimension L3 height L4 width L5 width dimension L6 width dimension L7 width

Claims (10)

  A rod-shaped component used for a toy, characterized in that a plurality of holes are provided at predetermined intervals along the length direction and a guide portion is provided along the length direction. Constituent member.   A follower made of a rod-shaped component member used for a toy and provided with a plurality of holes at predetermined intervals along the length direction and provided with a guide portion along the length direction; and the follower portion A motion conversion mechanism comprising a drive unit that can be driven along a length direction.   3. The motion conversion mechanism according to claim 2, wherein the driven portion is made of a rack, and the driving portion is made of a pinion gear.   The motion conversion mechanism according to claim 3, further comprising a holder portion having a holding portion capable of holding the rack.   5. The motion conversion mechanism according to claim 4, wherein the rack is formed so as to move in the holding portion when the pinion gear rotates.   The guide portion is a groove portion provided along the length direction, and the holding portion is formed as a convex portion that engages with the groove portion and can guide the rack along the length direction. The motion conversion mechanism according to claim 5, characterized in that: The rack is formed in the shape of an elongated plate having a rectangular cross section, and the groove portions are provided on the both side surfaces of the rack so as to be opposed to each other along the length direction. Provided along the direction,
The holder portion is formed in a U-shaped cross section, and is formed by a bottom surface portion and side surface portions extending at right angles from both side edge portions of the bottom surface portion, and the convex portion is each inner surface of the side surface portion. The motion conversion mechanism according to claim 6, wherein when the rack is inserted into the holding portion, the convex portion engages with the groove portion.   The rack is provided with a plurality of cutting slits along the width direction, and each cutting slit is provided at the same position as each hole provided in the rack in the length direction of the rack. The motion conversion mechanism according to claim 3, wherein the motion conversion mechanism is provided.   A plurality of the hole portions are provided in the central portion in the width direction of the rack at the same interval along the length direction, and the holder portion is provided in the rack when the rack is inserted through the holding portion. 9. The motion conversion mechanism according to claim 4, wherein a hole that can communicate with the formed hole is formed.   10. The motion conversion mechanism according to claim 9, wherein slits penetrating the both side surface portions are formed between the hole portions formed in the holder portion.

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