Traveling toy

Abstract

To provide a dust collector in which a filter is hardly clogged, and a traveling toy having the dust collector.SOLUTION: The dust collector includes: a motor, a fan driven by power of the motor; a duct for discharging air fed into an inlet by the driven fan from an outlet to the outside of a housing through a filter; and a dust collecting chamber for collecting dust contained in the air; wherein the duct and the dust collecting chamber are communicated with each other in the middle of a passage of the duct, and the air fed into the duct is divided and ejected to the duct. Also provided is a traveling toy that includes the dust collector.SELECTED DRAWING: Figure 6

Description

[Technical field]

[0001] The present invention relates to a dust collector and a traveling toy. [Background technology]

[0002] 2. Description of the Related Art Conventionally, a dust collector having a structure in which a filter and a dust collection chamber are provided upstream of a fan that draws in air is known (see Patent Document 1). Also, a dust collector is known in which a dust collection chamber is provided downstream of a fan that draws in air, and dust is captured by a filter provided in the dust collection chamber (see Patent Document 2). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2000-325673 A [Patent Document 2] Patent No. 7037431 Summary of the Invention [Problem to be solved by the invention]

[0004] However, according to the invention described in Patent Document 1, a filter and a dust collection chamber are provided together or together upstream of the fan, which means that dust tends to accumulate in the filter and the dust tends to overflow when the fan stops moving. Furthermore, according to the invention described in Patent Document 2, all of the dust is carried by the air current to the dust collection chamber, so there is also the problem that dust is likely to accumulate on the filter. The present invention has been made in consideration of the above circumstances, and has an object to provide a dust collector whose filter is less likely to become clogged, and a running toy equipped with the dust collector. [Means for solving the problem]

[0005] The first method is A motor; a fan driven by the power of the motor; a duct that discharges the air sent into the inlet by the driven fan from an outlet through a filter to the outside of the housing; a dust collection chamber for collecting dust contained in the air; Equipped with The duct and the dust collection chamber are communicated with each other midway through the passage of the duct, and the air sent into the duct is split and ejected into the duct. This is a dust collector characterized by the above.

[0006] The second method is A dust collector of the first means is provided, The motor, the fan, the duct, and the dust collection chamber are provided in a vehicle body constituting the housing, The fan is attached to a mounting portion provided on the underside of the chassis and configured to be able to suck in air under the chassis. It is characterized by:

[0007] The third means is the second means, characterized in that the toy is a traveling toy that travels on a track on which left and right rails are laid.

[0008] The fourth means is the third means, characterized in that the duct is provided with an expansion section between the communication section with the dust collection chamber and the exhaust outlet, the expansion section expanding toward the exhaust outlet.

[0009] A fifth aspect is the fourth aspect, characterized in that the motor, the duct, and the dust collection chamber are housed in this order along the longitudinal direction of the vehicle body.

[0010] The sixth means is the fourth means, characterized in that a part of a wall of the vehicle body is configured to be detachable from a main body of the vehicle body, the filter is provided on the wall, and the dust collection chamber is opened by removing the wall.

[0011] The seventh means is the fifth means, characterized in that the roof of the vehicle body is configured to be detachable from the main body of the vehicle body, the filter is provided on the roof, and the roof forms an upper wall of the dust collection chamber.

[0012] The eighth means is the third means, The fan is configured to be detachable from the mounting portion, The polishing unit can be attached in place of the fan and has abutting parts that are pressed against the left and right rails.

[0013] The ninth means is the third means, The fan is configured to be detachable from the mounting portion, The track is used for a three-wire current collection system, and is characterized by having a polishing unit that can be attached in place of the fan and has a contact portion that is pressed against the contact point between the left and right rails.

[0014] A tenth means is any one of the second to ninth means, characterized in that the traveling toy is pulled by a powered car toy that runs by collecting electricity from the track, and has a power source for the motor. Effect of the Invention

[0015] According to the first means, the dust contained in the diverted air is collected in the dust collection chamber, so the amount of dust contained in the main air flow can be reduced, and the burden on the filter is reduced accordingly. Also, the dust collected in the dust collection chamber does not return to the inlet side of the duct.

[0016] According to the second means, dust present under the vehicle chassis can be removed while the vehicle is traveling.

[0017] According to the third means, dust on the track can be removed while the vehicle is moving.

[0018] According to the fourth method, the main flow is expanded at the expanding section, and dust is captured by the filter. Also, since the passage resistance is reduced, the air flow is improved compared to a case where the expanding section is not provided, and the air volume is increased accordingly.

[0019] According to the fifth aspect, the motor, the duct, and the dust collection chamber can be accommodated in a well-balanced manner in the longitudinal direction of the vehicle body.

[0020] According to the sixth aspect, by removing a part of the wall of the vehicle body, the filter can be cleaned and the dust in the dust collecting chamber can be discarded.

[0021] According to the seventh aspect, by removing the roof of the vehicle body, the filter can be cleaned and the dust in the dust collecting chamber can be discarded.

[0022] According to an eighth aspect, by installing a polishing unit instead of a fan, it is possible to polish both the left and right rails.

[0023] According to the ninth aspect, by installing a polishing unit instead of a fan, it is possible to polish the central contact point in a track using a three-wire current collection system.

[0024] According to the tenth aspect, the power steering device can be connected to a powered toy car and used regardless of the power collection method of the powered toy car. [Brief description of the drawings]

[0025] [Figure 1] 1 is a perspective view of a freight car toy according to an embodiment; [Diagram 2] FIG. [Diagram 3] 1 is a perspective view of a freight car toy with a portion of a side wall of the car body removed. FIG. [Figure 4] FIG. [Diagram 5] This is a top view of a freight car toy with the roof and some of the parts under the roof removed. [Figure 6]FIG. 4 is a vertical cross-sectional view of a duct and a dust collection chamber. [Figure 7] 7A and 7B are perspective views of track plates on which a toy freight car runs, with FIG. 7A showing a track plate for a two-wire current collection system and FIG. 7B showing a track plate for a three-wire current collection system. [Figure 8] FIG. 2 is a perspective view showing a fan and a motor. [Figure 9] FIG. [Figure 10] FIG. [Figure 11] FIG. 2 is a bottom perspective view of the main body of the polishing unit. [Figure 12] FIG. [Figure 13] FIG. 2 is a bottom perspective view of the polishing unit. [Figure 14] FIG. [Figure 15] FIG. 2 is an exploded perspective view of the lower surface side of the polishing unit. [Figure 16] FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0026] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0027] "overview" FIG. 1 is a perspective view of a toy freight car 100. FIG. The freight car toy 100 is a covered car with a roof 11 on a car body 10. Wheels 13 are provided under a chassis 12 of the car body 10. This freight car toy 100 does not have a power source for running, and can run on the track plates 50A, 50B by being pulled by a powered car toy (such as a locomotive toy). In addition, various fans 70, polishing units 71, 72, or wiping blocks 73 (FIGS. 8 to 16) for cleaning and maintaining the track plates 50A and 50B (FIG. 7) on which the rails 51 are laid are selectively mounted under the chassis 12. By using the mounted fans 70, polishing units 71, 72, or wiping blocks 73, cleaning and maintenance of the track plates 50A and 50B can be performed while the train is traveling. This freight car toy 100 can run on either the track plate 50A for a two-wire current collection system or the track plate 50B for a three-wire current collection system.

[0028] "detail" (exterior) FIG. 2 is a perspective view of the underside of the freight car toy 100. FIG. The vehicle body 10, which is composed of the chassis 12 and the roof 11, has a rectangular parallelepiped shape that is long in the front-to-rear direction (see Figure 1), and the chassis 12 below the vehicle body 10 is provided with a pair of wheels 13, one at the front and one at the back, which form a pair on the left and right. Couplers 14 are provided at the front and rear ends of the chassis 12. The couplers 14 enable the freight car toy 100 to be coupled to other freight car toy or powered car toy.

[0029] Further, under the chassis 12, there are provided a first mounting portion 15 for mounting a wiping block 73, and a second mounting portion 16 for selectively mounting a fan 70 or polishing units 71, 72. The fan 70, the polishing units 71, 72, and the wiping block 73 will be described in detail later.

[0030] The first mounting portion 15 is configured with a thin and elongated rectangular cylindrical frame body 15a formed to protrude below the chassis 12. This frame body 15a is long in the left-right direction. The length of the frame body 15a in the long direction is greater than the width of the left and right wheels 13. A wiping block 73 is selectively attached to a hole defined by this frame body 15a as necessary.

[0031] The second mounting portion 16 is composed of a cylindrical frame 16a formed to protrude below the chassis 12. A motor shaft 17a of a motor 17 (FIG. 8) installed inside the vehicle body 10 protrudes from the center of a hole defined by the frame 16a. The diameter of the hole in the frame 16a is larger than the width of the left and right wheels 13. A fan 70 and / or polishing units 71 and 72 are selectively attached to this second mounting portion 16 as required.

[0032] (Roof 11) FIG. 3 is a perspective view of the freight car toy 100 with a portion of the side wall of the car body 10 removed, and FIG. The roof 11 of the vehicle body 10 is composed of a first roof portion 11a on the front side and a second roof portion 11b on the rear side. The first roof portion 11a has a length that is about 2 / 3 of the overall length of the roof 11, and the second roof portion 11b has a length that is about 1 / 3 of the overall length of the roof 11. The first roof portion 11a and the second roof portion 11b are fitted and attached to the main body of the vehicle body 10, and the second roof portion 11b can be individually removed from the main body. A circuit board 18 is attached to the underside of the first roof portion 11a, and a rectangular opening 11c is formed in the second roof portion 11b, in which a filter 19 is installed. A knob for a power switch SW attached to the circuit board 18 is provided so as to protrude from the first roof portion 11a.

[0033] (Inside of body 10) FIG. 5 is a top view of the freight car toy 100 with the roof 11 and some of the parts below the roof 11 removed. As shown in Figs. 3 and 5, inside the vehicle body 10, a battery housing section 20, a motor housing section 21, a duct 22, and a dust collection chamber 23 are provided in this order from the front side to the rear side.

[0034] The battery accommodating section 20 is provided with a battery box 24. Two batteries (not shown) are placed sideways in the battery box 24 with their central axes extending in the front-to-rear direction. A boss 25 with an internal thread is provided on an upper wall 24a of the battery box 24. The circuit board 18 is screwed to this boss 25. The battery can be attached and detached from the battery box 24 by opening the front wall of the vehicle body 10 and inserting and removing the battery sideways from the front into and from the battery box 24.

[0035] A motor housing box 26 is provided in the motor housing portion 21. A motor 17 (FIG. 8) is installed vertically in the motor housing box 26. A motor shaft 17a of the motor 17 protrudes into the frame body 16a of the second mounting portion 16.

[0036] FIG. 6 is a vertical cross-sectional view of the duct 22 and the dust collection chamber 23. As shown in FIG. 3, the duct 22 is provided immediately behind the motor housing box 26 and extends in the vertical direction of the vehicle body 10. The inlet 22a of the duct 22 is formed in an arch shape and opens into the frame 16a of the second mounting portion 16 (FIG. 2). The cross-sectional shape of the lower half passage of the duct 22 is substantially the same as the cross-sectional shape of the inlet 22a. The upper half passage of the duct 22 is shaped to expand toward the rear side and becomes larger toward the top. This expanding portion is hereinafter referred to as the expanding portion. The filter 19 provided on the second roof portion 11b is located immediately above the outlet 22b (FIG. 6) at the upper end of the duct 22. It is preferable that this expanding portion is provided between the communication portion between the duct 22 and the dust collecting chamber 23 and the outlet 22b.

[0037] The dust collection chamber 23 is provided immediately after the duct 22. The dust collection chamber 23 communicates with the duct 22 via an inlet 23a midway through the passage of the duct 22. The upper wall of the dust collection chamber 23 is formed by the second roof portion 11b, and the upper end of the dust collection chamber 23 opens when the second roof portion 11b is removed. This opening 23b is shown in FIG. 5. By turning upside down the dust collection chamber 23 with the upper end open together with the freight car toy 100, the dust accumulated in the dust collection chamber 23 can be discharged.

[0038] (Race plate 50A, 50B) 7(A) and 7(B) are perspective views of track plates 50A and 50B on which the freight car toy 100 runs. Of these, Fig. 7(A) shows the track plate 50A of a two-wire current collection system, and Fig. 7(B) shows the track plate 50B of a three-wire current collection system. The freight car toy 100 is capable of running on the track plates 50A and 50B. On the track plate 50A, the powered toy car collects electricity from the left and right rails 51 through the wheels, and the powered toy car runs by this electricity collection. At that time, the freight car toy 100 can run on the track plate 50A by being pulled by the powered toy car. In addition, on the track plate 50B, the powered toy car collects electricity from the left and right rails 51 and the contacts 52 protruding from the parts corresponding to the sleepers through the wheels and shoes, and the powered toy car runs by this electricity collection. At that time, the freight car toy 100 can run on the track plate 50B by being pulled by the powered toy car. The width of the left and right rails 51 is the same for track plate 50A and track plate 50B.

[0039] (Cleaning Tools) FIG. 8 is a perspective view showing the fan 70 and the motor 17, and FIG. The fan 70 is configured as an axial flow fan (propeller fan) and is configured with a shaft portion 70b having a hole 70a that can fit onto the motor shaft 17a, and multiple blades 70c formed at equal intervals on the outer periphery of the shaft portion 70b. The fan 70 is housed in the frame 16a under the chassis 12 with the hole 70a of the shaft portion 70b fitted onto the motor shaft 17a. In this case, the frame 16a of the second mounting portion 16 has an open lower end so that the fan 70 can be easily attached and detached. Therefore, in order to increase the suction force, a cylindrical cap 75 with a bottom can be fitted to the frame 16a. An oval air intake 75a is formed in the cap 75. The length of the air intake 75a in the longitudinal direction is preferably large enough to cover the left and right rails 51. The cap 75 also serves to prevent the insertion of fingers. The orientation of the cap 75 and therefore the air intake 75a can be changed. This allows the orientation of the air intake 75a to be changed to clean a desired location.

[0040] 10 is a perspective view of the polishing unit 71, FIG. 11 is a perspective view of the bottom surface side of the main body of the polishing unit 71, and FIG. This polishing unit 71 is for polishing the left and right rails 51, and can be used for the track plates 50A, 50B. This polishing unit 71 is made of plastic except for the coil spring 71k, which is made of metal. The polishing unit 71 includes a disk (contact portion) 71a, a mounting member 71b that supports the disk 71a, and a polishing tape 71c that is attached to the lower surface of the disk 71a.

[0041] The diameter of the disk 71a is set to a size that can cover the left and right rails 51 of the tracks 50A and 50B. An upwardly protruding portion 71d is formed in the center of the disk 71a. The inside of the protruding portion 71d is hollow, and the hollow portion opens at the upper end of the protruding portion 71d. The hollow portion also communicates with a hole 71e on the bottom surface of the disk 71a. The hole 71e is a cutout for forming the hollow protruding portion 71d. Also, reference numeral 71g denotes a rib for reinforcing the protruding portion 71d.

[0042] The mounting member 71b is provided with a hole 710 into which the motor shaft 17a is fitted, and a pair of protrusions 71f. The pair of protrusions 71f come into contact with the underside of the chassis 12 when the hole 710 is fitted onto the motor shaft 17a. The mounting member 71b is provided with a pair of elastic claw members 71h. The elastic claw members 71h extend downward, and have outward claws 71i at their lower ends. The outward claws 71i engage with the lower edge surface of the opening 71j of the bulging portion 71d due to the elasticity of the elastic claw members 71h. A coil spring 71k is wound around the pair of elastic claw members 71h. The coil spring 71k is located between the bulging portion 71d and the protruding piece 71f, and biases the bulging portion 71d and the protruding piece 71f in a direction separating them from each other when the outward claws 71i engage with the lower edge surface of the opening 71j of the bulging portion 71d. The biasing force presses the rotating plate 71a against the rail 51. A polishing tape 71c is attached to the underside of the disk 71a of the polishing unit 71 as a cleaning head. When the grinding unit 71 is attached to the motor shaft 17a, the lower surface of the disk 71a protrudes downward from at least the lower end of the frame 16a of the second mounting portion 16. The grinding unit 71 is used with the motor 17 stopped. The polishing unit 71 may be configured to be rotated by the motor 17. In this case, it is preferable that the protruding piece 71f is not brought into contact with the lower surface of the chassis 12 since it creates a rotation resistance.

[0043] 13 is a bottom perspective view of the polishing unit 72, FIG. 14 is an exploded perspective view of the polishing unit 72, and FIG. 15 is an exploded perspective view of the bottom side of the polishing unit 72. As shown in FIG. This polishing unit 72 is for polishing the contacts 52 of the raceway plate 50B and can be used in the case of the raceway plate 50B. This polishing unit 72 is made of plastic except for the coil spring 72о, which is made of metal. The polishing unit 72 includes a disk (contact portion) 72a, a mounting member 72b that supports the disk 72a, and a polishing tape 72c that is attached to the lower surface of the disk 72a.

[0044] The diameter of the disk 72a is sized to fit between the left and right rails 51. An upwardly rising bulge 72d is formed in the center of the disk 72a. The inside of the bulge 72d is hollow, and the hollow portion opens at the upper end of the bulge 72d. The hollow portion also communicates with a hole 72e on the underside of the disk 72a. The hole 72e is a cutout for forming the hollow bulge 72d. Reference symbol 72p denotes a rib for reinforcing the bulge 72d.

[0045] An oval counterbore 72f is formed in the hole 72e. A fitting hole 72g is formed in the bottom surface of the counterbore 72f. An oval plate-shaped lid 72h is fitted into the counterbore 72f. At that time, a fitting protrusion 72i formed on the lid 72h is fitted into the fitting hole 72g. When the lid 72h is fitted into the counterbore 72f, the hole 72e is blocked and the bottom surface of the disk 72a and the bottom surface of the lid 72h are flush with each other.

[0046] The mounting member 72b is provided with a hole 72j that fits onto the motor shaft 17a, and a pair of protrusions 72k. The pair of protrusions 72k abut against the underside of the chassis 12 when the hole 72j is fitted onto the motor shaft 17a. The mounting member 72b is also provided with a pair of elastic claw members 72l. The elastic claw member 72l extends downward, and an outward claw 72m is provided at its lower end. The outward claw 72m engages with the lower edge surface of the opening 72n of the bulging portion 72d by the elasticity of the elastic claw member 72l. A coil spring 72o is wound around the pair of elastic claw members 72l. The coil spring 72o is located between the bulging portion 72d and the protrusions 72k, and when the outward claw 72m is engaged with the lower edge surface of the opening 72n of the bulging portion 72d, the coil spring 72o biases the bulging portion 72d and the protrusions 72k in a direction separating them from each other. This biasing force presses the disk 72 a against the contact 52 . A polishing tape 72c is attached to the underside of the disk 72a of the polishing unit 72 as a cleaning head.

[0047] The corner between the lower surface and the outer circumferential surface of the disk 72a is rounded. This polishing unit 72 is used to polish the contacts 52, and without the rounded corners, the outer circumferential surface of the disk 72a may get caught on the contacts 52 while the disk 72a is moving. If the disk 72a has a rounded corner, the rounded corners slide against the contacts 52, allowing the disk 72a to ride on the contacts 52 smoothly and polish the contacts 52. Instead of the rounded corners, the disk 72a may be configured in an inverted truncated cone shape so that the outer circumferential surface of the disk 72a is inclined relative to the lower surface. In short, it is sufficient that the outer circumferential surface expands in diameter as it goes upward relative to the lower surface. In addition, it is preferable that the thickness of the disk 72a is set to be larger than the distance between the upper surface of the rail 51 and the contact point 52. This is because if the thickness of the disk 72a is smaller than the distance between the upper surface of the rail 51 and the contact point 52, the disk 72a cannot climb over the rail that intersects at the point. Furthermore, in this grinding unit 72, when attached to the motor shaft 17a, the lower surface of the disk 72a protrudes downward from the lower end of the frame body 16a of the second mounting portion 16, but the amount of protrusion in this case is greater than in the case of the grinding unit 71. This is because the height of the upper surface of the contact 52 is lower than the height of the upper surface of the rail 51. The polishing unit 72 may be configured to be rotated by the motor 17. In this case, it is preferable that the protruding piece 72k is not brought into contact with the lower surface of the chassis 12 since it creates a rotation resistance.

[0048] FIG. 16 is a perspective view of the wiping block 73. The wiping blocks 73 are used to wipe the left and right rails 51 of the track plates 50A and 50B. The wiping block 73 is made of, for example, synthetic fiber and has flexibility. The wiping block 73 is used alone or together with other cleaning tools (fan 70, polishing unit 71 or 72). In place of the dry wiping block 73, a wet wiping block soaked with a cleaning liquid or the like may be used. In addition, since the block is designed to wipe the left and right rails 51, the block may have a concave shape in the center.

[0049] (Action and Action) The toy freight car 100 operates and functions as follows.

[0050] When the fan 70 and cap 75 are attached and the power switch SW is turned on, the fan 70 is driven to rotate and air containing dust is sucked in from the intake port 75a. The sucked air is sent into the duct 22 from the inlet port 22a of the duct 22 by the fan 70, and an air flow is formed that tries to go out from the outlet port 22b through the filter 19. In this case, the inlet port 22a side of the duct 22 is at high pressure and the outlet port 22b side is at low pressure (atmospheric pressure). At this time, the dust collection chamber 23 is at atmospheric pressure. Therefore, when the air that has entered duct 22 reaches inlet 23a of dust collection chamber 23, which is at a pressure close to atmospheric pressure, a portion of the air branches off and is blown into dust collection chamber 23. The air that has entered dust collection chamber 23 stagnates therein, and dust in the air falls to the floor of dust collection chamber 23. The remaining air (main flow) that has not entered dust collection chamber 23 is expanded in the expanding portion, passes through outlet 22b of duct 22, and is captured by filter 19.

[0051] When the polishing unit 71 is attached and the power switch SW is turned on, the polishing unit 71 is rotated and the surfaces of the left and right rails 51 of the track plates 50A and 50B are polished.

[0052] Furthermore, when the polishing unit 72 is attached and the power switch SW is turned on, the polishing unit 72 is rotated and the surface of the central contact point 52 of the raceway plate 50B is polished.

[0053] Furthermore, when the wiping block 73 is attached, the surfaces of the rails 51 on the left and right sides of the track plates 50A, 50B are wiped as the freight car toy 100 travels.

[0054] (Effects of the embodiment) This freight car toy 100 has the following advantages.

[0055] Since dust is captured in the dust collecting chamber 23 during the exhaust, the amount of dust that reaches the filter 19 is reduced. This reduces the load on the filter 19, and a relatively small filter can be used. This improves the design of the freight car toy 100.

[0056] In addition, because the outlet side passage of duct 22 is expanded, the airflow speed slows down at the expanded portion, making it easier for dust to fall onto the bottom wall of the expanded portion. This also reduces the burden on filter 19, and prevents dust from returning to the inlet side when fan 70 is stopped.

[0057] In addition, since the device has a power source, it can be connected to a powered toy car and used without depending on the power collection method of the powered toy car.

[0058] Furthermore, since the motor 17, the duct 22 and the dust collection chamber 23 are arranged in that order in the front-rear direction, the motor 17, the duct 22 and the dust collection chamber 23 can be accommodated in the long vehicle body 10 in a well-balanced manner.

[0059] Moreover, by removing the roof 11, the filter 19 can be cleaned and dust accumulated in the dust collection chamber 23 can be discarded.

[0060] Furthermore, by installing a polishing unit 71 instead of the fan 70, both the left and right rails 51 can be polished.

[0061] Also, by installing a grinding unit 72 instead of the fan 70, the central contact 52 in the track of the three-wire current collection system can be ground.

[0062] <<Variation>> In the above embodiment, the polishing units 71 and 72 can be attached instead of the fan 70, but a wiping unit can be attached by attaching felt or the like to the disks 71a and 72a as a cleaning head. In other words, another cleaning tool can be attached instead of the fan 70.

[0063] In the above embodiment, a battery is provided as the power source, but a secondary battery may be provided.

[0064] In the above embodiment, the dust collector is provided on the freight car toy 100, but the dust collector can be changed in shape to become a tabletop dust collector. The present invention can also be applied to running toys other than the freight car toy 100, such as container car toys.

[0065] In the above embodiment, the elastic claw members 71h, 72l are provided on the mounting members 71b, 72b, but the elastic claw members may be provided on the disks 71a, 72a and engaging portions may be provided on the mounting members.

[0066] In the above embodiment, the duct 22 is configured to extend in the vertical direction, but the duct 22 may be bent midway.

[0067] Furthermore, in the above embodiment, the filter 19 is provided on the roof 11, and the roof 11 serves as the upper wall of the dust collection chamber 23. However, the filter 19 may be attached to the outlet 22b of the duct 22.

[0068] In addition, in the above embodiment, the upper end of the dust collection chamber 23 is opened by removing the roof 11, but the side ends, rear ends, etc. of the dust collection chamber 23 may be opened by removing the side walls or rear walls of the vehicle body 10.

[0069] Extracted Inventions Although the embodiment of the present invention has been described above, the following invention can be extracted from the embodiment as a traveling toy that travels on a track using a three-wire current collection system. (i) A traveling toy that runs on a track for a three-wire current collection system, a contact part provided on the underside of the vehicle body so as to be movable up and down within a predetermined range and capable of entering between the left and right rails of the track, the contact part having a cleaning head attached to its lower end; a biasing means for biasing the contact portion downward to bring the cleaning head into pressure contact with the contact points between the left and right rails; Equipped with A running toy, characterized in that a lower surface of the contact portion is flat, and a curve is provided between the lower surface and a peripheral surface. Here, the rounded portion may be configured such that the outer circumferential surface of the disk is inclined relative to the lower surface, and the disk may be configured in the shape of an inverted truncated cone. In short, it is sufficient that the outer circumferential surface widens upward relative to the lower surface. The cleaning head is composed of an abrasive tape (file), a dry or wet cloth, or an abrasive uneven portion (file) fixedly formed on the contact portion.

[0070] In the case of a polishing unit 71 for polishing the left and right rails 51 of a track, the polishing tape 71c under the disc 71a can be kept in contact with the left and right rails 51 at all times. Therefore, taking into consideration the difference in height between the left and right rails 51 and the undulations in the height of the top surfaces of the rails 51, it is sufficient to configure the disc 71a to be swingable and movable up and down, and to bias the disc 71a downward with a coil spring 71k. On the other hand, in the case of the polishing unit 72 for polishing the contacts 52 of a track using a three-wire current collection system, since there is undulation in the height of the upper surface of the protrusion 52, it is useful to configure the disk 72a to be swingable and movable up and down, and to bias the disk 72a downward with the coil spring 72o. However, this structure actually creates inconveniences in a polishing unit that uses a three-wire current collection system. That is, in the case of a track using a three-wire current collection system, the contacts 52 are spaced apart, the spacing between the contacts 52 varies in some places, multiple contacts 52 may be arranged side by side at a point, and the heights of the contacts 52 may vary. Therefore, if the outer periphery of the disc 72a is perpendicular to the lower surface, there is a high possibility that the outer periphery of the disc 72a will hit the contacts 52 when the train is running as the disc 72a sways or moves up and down. Therefore, even if the outer periphery of the disk 72a butts against the contact 52, the sliding contact between the contact 52 and the disk 72a allows the disk 72a to move away from the contact 52 and ride up onto the contact 52, so that the outer periphery of the disk 72a is made to expand upward relative to the lower surface. This traveling toy can reliably clean the track contacts that use a three-wire current collection system while passing over them.

[0071] (ii) A traveling toy as described above in (i), A running toy, wherein the contact portion is formed in a disk shape, and the curve is formed around the entire circumference. According to this traveling toy, the contact point can be overcome and cleaned regardless of the orientation of the contact portion.

[0072] (iii) A traveling toy as described above in (i) or (ii), A mounting member is provided to be attached to the vehicle body, A plurality of elastic claw members each having a claw formed at a tip end are provided on one of the mounting member and the contact portion, The other of the mounting member and the abutment portion is provided with an engagement portion that is engaged with the claw by the elasticity of the elastic claw member, A running toy characterized in that the contact portion is connected to the mounting member so as to be movable up and down within a predetermined range by engagement between the claw and the engagement portion, and the biasing member is provided between the mounting member and the contact portion so as to bias the contact portion downwardly relative to the mounting member. According to this traveling toy, when the cleaning head becomes worn, for example, the contact portion can be detached from the attachment member and replaced together with the contact portion.

[0073] (iv) A running toy according to (iii), characterized in that the mounting member, the contact portion and the biasing member form an integrated cleaning unit, and the cleaning unit is detachable from the vehicle body. According to this traveling toy, the cleaning unit can be attached and detached, so that the handling is easy. [Explanation of symbols]

[0074] 10. Body 11. Roof 12 Chassis 13 wheels 15 1st attachment part 16 2nd attachment part 17 Motor 17a Motor shaft 19 Filters 20 Battery compartment 21 Motor housing 22 Duct 23 Dust collection chamber 50A,50B raceway plate 51 Rail 52 Contacts 70 Fans 71, 72 Polishing unit 72a Disc 72b Mounting material 72c Polishing Tape 72d bulge 72e Hole 72f Reeling 72g mating hole 72h Lid 72i mating protrusion 72j hole 72k protrusion 72l Elastic claw member 72m outward claw 72n aperture 75 Cap 75a Air intake 100 freight car toy

Claims

1. A motor; a fan driven by the power of the motor; a duct that discharges the air sent into the inlet by the driven fan from an outlet through a filter to the outside of the housing; a dust collection chamber for collecting dust contained in the air; Equipped with The duct and the dust collection chamber are communicated with each other midway through the passage of the duct, and the air sent into the duct is split and ejected into the duct. A dust collector characterized by:

2. A dust collector according to claim 1, The motor, the fan, the duct, and the dust collection chamber are provided in a vehicle body constituting the housing, The fan is attached to a mounting portion provided on the underside of the chassis and configured to be able to suck in air under the chassis. A traveling toy characterized by the above.

3. 3. The running toy according to claim 2, which runs on a track on which left and right rails are laid.

4. 4. The running toy according to claim 3, wherein the duct is provided with an expanding portion between the outlet and the communicating portion with the dust collecting chamber, the expanding portion expanding toward the outlet.

5. 5. The traveling toy according to claim 4, wherein the motor, the duct, and the dust collection chamber are arranged in this order along the length of the vehicle body.

6. The running toy according to claim 4, characterized in that a part of a wall of the vehicle body is configured to be detachable from a main body of the vehicle body, the filter is provided on the wall, and the dust collection chamber is opened by removing the wall.

7. The running toy according to claim 5, characterized in that the roof of the vehicle body is configured to be detachable from the main body of the vehicle body, the filter is provided on the roof, and the roof forms an upper wall of the dust collection chamber.

8. The fan is configured to be detachable from the mounting portion, 4. The running toy according to claim 3, further comprising a polishing unit that can be attached in place of the fan and has abutting parts that are pressed against the left and right rails.

9. The fan is configured to be detachable from the mounting portion, 4. The running toy according to claim 3, further comprising a polishing unit that is used on a track for a three-wire current collection system, can be attached in place of the fan, and has a contact portion that is pressed against the contact point between the left and right rails.

10. The traveling toy according to any one of claims 3 to 9, characterized in that the traveling toy is towed by a powered toy vehicle that collects electricity from the track and travels, and has a power source for the motor.

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