JP2000193045A - Geared motor device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a geared motor to facilitate a recycle. SOLUTION: The reduction gears 26-30 of a geared motor device 10, gear shafts 32-33, an output shaft 36, and a housing 38 to contain the above are all formed of POM(Poly Oxy Methylene). Since the POM is a high slide material, no grease is applied on the reduction gears 26-30. A motor 12 is removably fixed at the external part of the housing 38. When the geared motor device 10 is recycled, the motor 12 may be only discriminated from the housing 38. There is no need to separate the housing 38 like a conventional type and since the reduction gears 26-30, the gear shafts 32-33, the output shaft 36, and the housing 38 are formed of the same material, there is also no need for discrimination thereof. Further, since the reduction gears 26-30 are coated with no grease, there is no need for washing of grease, resulting in facilitation of recycling.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a geared motor device for outputting a driving force of a motor to an output shaft via a plurality of gears.

[0002]

2. Description of the Related Art In a conventional geared motor device,
For example, as described in Japanese Utility Model Laid-Open No. 5-88183,
A worm gear is mounted on the drive shaft of the motor.
A plurality of reduction gears are engaged with this worm gear,
Thereby, the driving force of the motor is output to the output shaft.

[0003] Here, a motor, a drive shaft, a worm gear,
The reduction gear, the gear shaft of the reduction gear, the output shaft, and the like are housed in a housing. This housing is composed of a cap and a case, and the cap is connected to the case by fixing a fixing claw attached to the cap to the case.

The materials of the components are different, such as PBT (polybrene terephthalate) used for the housing and nylon or POM (polyoxymethylene) for the reduction gear. Further, grease is applied to the reduction gear to ensure durability.

[0005] When recycling such a geared motor device, first, the cap of the housing is separated from the case and the motor inside the housing is taken out to separate the motor from the housing. At this time, the worm gear is taken out of the housing together with the drive shaft of the motor. Thereafter, the housing, the reduction gear, the gear shaft of the reduction gear, the output shaft, and the like are separated for each component of the same material, and the grease applied to the reduction gear is washed.

However, it takes time and effort to remove the fixing claw of the cap from the case when separating the cap of the housing from the case, so that it is difficult to separate the motor from the housing. In addition, it is necessary to separate the housing, the reduction gear, the gear shaft of the reduction gear, the output shaft, and the like, and to clean the grease applied to the reduction gear.

[0007]

SUMMARY OF THE INVENTION An object of the present invention is to provide a geared motor device that can easily be recycled in consideration of the above fact.

[0008]

According to the first aspect of the present invention, a driving gear is mounted on a driving shaft of a motor, and one or a plurality of reduction gears are engaged with the driving gear to drive the motor. A reduction gear, a gear shaft of the reduction gear, and a housing for accommodating the output shaft, the reduction gear;
The gear shaft, the output shaft, and the housing are made of the same material.

According to the first aspect of the present invention, the reduction gear, the gear shaft of the reduction gear, the output shaft, and the housing are made of the same material. There is no need to separate these components, and the number of recycling steps can be reduced to facilitate recycling.

According to a second aspect of the present invention, in the geared motor device according to the first aspect, the same material is a high sliding material.

According to the second aspect of the invention, since the material constituting the reduction gear is a high sliding material, it is not necessary to apply grease to the reduction gear. For this reason, when the geared motor device is recycled, it is not necessary to clean the grease as in the related art, and the recycling man-hour can be reduced and the recycling process can be easily performed.

According to a third aspect of the present invention, in the geared motor device according to the first or second aspect, the housing comprises a cap and a case, and the cap and the case are separable. Further, the motor is housed in the housing, and is fixedly held between the cap and the case.

According to the third aspect of the invention, by separating the cap of the housing from the case, the motor accommodated in the housing can be easily separated from the housing.

According to a fourth aspect of the present invention, in the geared motor device according to the third aspect, the cap is provided with a coupling extending portion extending in the case direction, and the coupling extending portion has a coupling concave portion or a coupling concave portion. While the convex portion is provided, the case is provided with a coupling convex portion or a coupling concave portion corresponding to the coupling concave portion or the coupling convex portion, and the cap and the cap are formed by engaging the coupling concave portion and the coupling convex portion. It is characterized by being combined with a case.

According to the fourth aspect of the present invention, since the coupling extension of the cap is extended, the coupling extension has elasticity. For this reason, for example, when a coupling concave portion is provided in a coupling extending portion of a cap and a coupling convex portion is provided in a case, the coupling convex portion is engaged with the coupling concave portion by bending the coupling extending portion. Cap and case are combined. Therefore, the housing cap and the case can be easily and firmly connected.

On the other hand, by bending the joint extension,
The coupling recess can be pulled out of the coupling projection, and the cap can be easily separated from the case. Therefore, the operation of separating the motor from the housing can be easily performed, and as a result, the geared motor device can be easily recycled.

The same applies to a case where a coupling projection is provided in the coupling extension of the cap and a coupling concave is provided in the case.

According to a fifth aspect of the present invention, in the geared motor device according to the first or second aspect, the motor is fixed to the outside of the housing.

According to the fifth aspect of the present invention, since the motor is fixed outside the housing, the motor can be separated from the housing without separating the housing. Therefore, the geared motor device can be easily recycled.

According to a sixth aspect of the present invention, in the geared motor device according to the fifth aspect, a motor engaging member is fixed to the motor, and the motor extends along the wall surface of the housing along the wall surface. A combined extension portion is provided, and the motor is fixed to the outside of the housing by sandwiching the motor engagement member between a wall surface of the housing and the engagement extension portion.

According to the sixth aspect of the present invention, since the engagement extension provided on the housing is extended, the engagement extension has elasticity. For this reason, the motor engaging member is inserted between the wall surface of the housing and the engaging extending portion by bending the engaging extending portion and inserting the motor engaging member between the wall surface of the housing and the engaging extending portion. Can be pinched. Therefore, the motor can be easily fixed to the outside of the housing.

On the other hand, the motor extension member can be pulled out from between the wall surface of the housing and the engagement extension portion by bending the engagement extension portion, so that the motor can be easily separated from the housing. Therefore, the geared motor device can be easily recycled.

According to a seventh aspect of the present invention, in the geared motor device according to the sixth aspect, the motor engaging member is provided with an engaging concave portion or an engaging convex portion, and the engaging extending portion has an engaging concave portion or an engaging convex portion. An engagement protrusion or an engagement recess is provided corresponding to the engagement recess or the engagement protrusion, and the motor is fixed to the outside of the housing by engaging the engagement recess and the engagement protrusion. It is characterized by doing.

According to the invention described in claim 7, for example,
When the engagement recess is provided in the motor engagement member and the engagement protrusion is provided in the engagement extension, the engagement extension is bent to cause the motor to move between the wall surface of the housing and the engagement extension. The motor is fixed outside the housing by inserting the engaging member and further engaging the engaging concave portion and the engaging convex portion. Therefore, the motor can be firmly fixed so as not to be displaced from the housing.

On the other hand, the engaging extension is bent to extract the engaging concave from the engaging convex, and the motor engaging member is extracted from between the wall surface of the housing and the engaging extending. Separate. Therefore, the motor can be easily separated from the housing. Therefore, the geared motor device can be easily recycled.

The same applies to the case where the motor engaging member is provided with an engaging protrusion and the housing extension is provided with an engaging recess.

According to an eighth aspect of the present invention, in the geared motor device according to the sixth or seventh aspect, a pair of the engagement extending portions are provided, and both of the pair of engagement extending portions are in the same circumferential direction. Extending along and in parallel with each other, and by rotating the motor about the drive shaft, the motor engaging member is detachable between a wall surface of the housing and the engaging extending portion. I have.

Here, when the motor is fixed to the outside of the housing, a cylindrical insertion hole is usually provided in the housing so that the reduction gear attached to the drive shaft meshes with the reduction gear inside the housing. The drive shaft of the motor is inserted into the housing from the insertion hole. In such a case, when the motor is to be moved along the wall surface of the housing in order to attach and detach the motor engaging member between the wall surface of the housing and the engagement extension portion, the drive shaft of the motor is inserted into the housing. Contact the hole. Therefore, by moving the motor along the wall of the housing,
The motor engaging member cannot be detached between the wall surface of the housing and the engaging extension.

On the other hand, according to the eighth aspect of the present invention, since the pair of engagement extending portions are both extended along the same circumferential direction and in parallel, the engagement extension portion is connected to the wall surface of the housing. Are inserted in the same circumferential direction, and the direction in which the motor engaging member is removed from between the wall surface of the housing and the engagement extending portion is the same in the circumferential direction. It is. For this reason, by rotating the motor about the drive shaft, the motor engagement member can be attached and detached between the wall surface of the housing and the engagement extension portion. Therefore, the drive shaft of the motor can be inserted through the insertion hole of the housing. Even when inserted inside, the motor engaging member can be attached and detached between the wall surface of the housing and the engaging extension.

According to a ninth aspect of the present invention, in the geared motor device according to any one of the first to eighth aspects, the drive gear is made of metal.

Generally, when the motor is driven to rotate the drive gear at high speed, frictional heat is generated between the drive gear and the reduction gear meshing with the drive gear.

According to the ninth aspect of the present invention, since the driving gear is made of metal, the frictional heat between the driving gear and the reduction gear is transmitted by the driving gear to dissipate the frictional heat. be able to.

[0033]

DESCRIPTION OF THE PREFERRED EMBODIMENTS [First Embodiment] FIG.
Geared motor device 1 according to a first embodiment of the present invention
0 shows a schematic internal configuration in a front view, and FIG. 2 shows a general configuration of the geared motor device 10 in a front view. FIG. 3 shows the geared motor device 10.
Is shown in a perspective view, and FIG. 4 is a plan view showing the entire configuration of the geared motor device 10.

The geared motor device 10 according to the first embodiment is for a paper feeding device, and has a motor 12 (DC
Motor). A drive shaft 16 protrudes from the bottom surface 14 of the motor 12, and a worm gear 18 as a drive gear is attached to the drive shaft 16. The worm gear 18 is made of metal.
By transmitting the frictional heat between the worm gear 18 and the other gears, the worm gear 18 can dissipate the frictional heat. A bracket 20 as a motor engaging member is fixed to the bottom surface 14 of the motor 12.
The bracket 20 has two engaging portions 22.
The two engagement portions 22 are opposed to each other, and each project from the side surface 15 of the motor 12. Further, both of the two engaging portions 22 are provided with an engaging hole 24 as an engaging concave portion.

A reduction gear 26 (wheel gear) meshes with the worm gear 18.
A reduction gear 27 is fixed to the power supply. Also, reduction gear 2
A reduction gear 28 meshes with 7, and a reduction gear 29 is fixed to a gear shaft 33 of the reduction gear 28. further,
A reduction gear 30 meshes with the reduction gear 29, and an output shaft 36 is fixed to the reduction gear 30. Thus, the driving force of the motor 12 is controlled by the worm gear 18 and the reduction gear 2.
The data is output to the output shaft 36 via 6 to 30.

The reduction gears 26 to 30 are all made of POM made of a high sliding material.
30 is durable without applying grease. Further, the gear shafts 32 to 33 and the output shaft 36 are all made of POM made of a high sliding material.

The reduction gears 26 to 30, the gear shafts 32 to 33, and the output shaft 36 are accommodated in a housing 38 made of POM made of a high-sliding material, and the output shaft 36 projects outside the housing 38.

A cylindrical insertion hole 42 is provided in the upper surface 40 of the housing 38, and the drive shaft 16 of the motor 12 and the worm gear 18 are inserted through the insertion hole 42. Thereby, the worm gear 18 can be meshed with the reduction gear 26 as described above.

A plurality of engaging extension portions 44 are provided on the upper surface 40 of the housing 38 (two in the present embodiment).
The two engagement extending portions 44 extend along the upper surface 40 of the housing 38 so as to have elasticity. For this reason, by bending the engagement extension portion 44 and inserting the bracket 20 fixed to the motor 12 between the engagement extension portion 44 and the upper surface 40 of the housing 38, the engagement extension portion 44 and the housing 38 The bracket 20 is sandwiched between the upper surface 40 and the upper surface 40.

Each of the two engagement extension portions 44 is provided with an engagement projection 46 corresponding to the engagement hole 24 of the bracket 20. Part 4
By engaging the engagement hole 6 with the engagement hole 24, the motor 12 is firmly fixed so as not to be displaced from the housing 38.

Furthermore, the two engaging extension portions 44 are both extended along the same circumferential direction and in parallel, so that the motor 12 is moved between the engaging extension portion 44 and the upper surface 40 of the housing 38. The insertion directions of the brackets 20 fixed to the brackets are the same circumferential direction, and the removal directions of the brackets 20 from between the engaging extension portion 44 and the upper surface 40 of the housing 38 are the same circumferential direction. It has been like that.
Therefore, the motor 12 is moved in the direction of arrow A or arrow B in FIG.
Is rotated about the drive shaft 16 so that the bracket 2 is positioned between the engagement extending portion 44 and the upper surface 40 of the housing 38.
0 can be attached and detached.

Next, the operation of the present embodiment will be described.

In the geared motor device 10 having the above structure, when the motor 12 is fixed to the outside of the housing 38, first, the drive shaft 16 and the worm gear 18 of the motor 12 are inserted through the insertion hole 42 of the housing 38, and the worm gear 18 is meshed with the reduction gear 26. afterwards,
The engagement extension 44 is bent, and the motor 12 is rotated about the drive shaft 16 in the direction of arrow A in FIG. 4, and is fixed to the motor 12 between the engagement extension 44 and the upper surface 40 of the housing 38. Insert the bracket 20. At this time, the engagement of the engagement protrusion 46 of the engagement extension portion 44 with the engagement hole 24 of the bracket 20 allows the motor 1 to be mounted outside the housing 38.
Fix 2

As described above, by bending the extension portion 44 and inserting the bracket 20 fixed to the motor 12 between the upper surface 40 of the housing 38 and the engagement extension portion 44, the upper surface 40 of the housing is Since the bracket 20 can be sandwiched between the engaging extension 44 and the motor 1,
2 can be easily fixed to the outside of the housing 38.

Further, since the motor 12 is fixed to the outside of the housing 38 by engaging the engaging projection 46 of the engaging extension portion 44 with the engaging hole 24 of the bracket 20, the motor 12 is It can be fixed firmly so that it does not shift.

When the motor 12 is fixed outside the housing 38 as in this embodiment, the worm gear 18 attached to the drive shaft 16 is engaged with the reduction gear 26 inside the housing 38. A cylindrical insertion hole 42 is provided in the housing 38, and the drive shaft 16 of the motor 12 is inserted into the housing 38 from the insertion hole 42. In such a case, the upper surface 4 of the housing 38
When the motor 12 is to be moved along the upper surface 40 of the housing 38 so that the bracket 20 is attached to and detached from the engagement extension portion 44, the drive shaft 16 of the motor 12 is inserted into the insertion hole 42 of the housing 38. Will abut. For this reason, by moving the motor 12 along the upper surface 40 of the housing 38, the bracket 20 cannot be attached or detached between the upper surface 40 of the housing 38 and the engagement extension portion 44.

On the other hand, in the present embodiment, since the two engagement extension portions 44 are both extended in the same circumferential direction and in parallel, the upper surface 40 of the housing 38 and the engagement extension portion 44 Are inserted in the same circumferential direction. Therefore, the motor 12 is connected to the drive shaft 16.
By rotating about the center, the upper surface 4
0 and the engagement extension 44, the bracket 20 can be inserted.
Even when the drive shaft 16 of the motor 12 is inserted into the housing 38, the bracket 20 can be inserted between the upper surface 40 of the housing 38 and the engagement extension 44.

When the geared motor device 10 is operated, when the motor 12 is driven to rotate the worm gear 18, the reduction gears 26 to 30 rotate, and the driving force of the motor 12 is output to the output shaft 36. When the motor 12 is driven, the worm gear 18 rotates at high speed, so that frictional heat is generated between the worm gear 18 and the reduction gear 26.
Here, since the worm gear 18 is made of metal, the friction heat between the worm gear 18 and the reduction gear 26 is transmitted by the worm gear 18 so that the friction heat can be dissipated.

When the geared motor device 10 is to be recycled, the engagement extension portion 44 is bent so that the engagement extension portion 4 extends from the engagement hole 24 of the bracket 20 fixed to the motor 12.
4, the motor 12 is rotated about the drive shaft 16 in the direction of arrow B in FIG. Take out. Thereafter, the motor 12 is separated from the housing 38 by extracting the drive shaft 16 of the motor 12 from the inside of the housing 38. At this time, the worm gear 1 together with the drive shaft 16 of the motor 12
8 is also extracted from the inside of the housing 38.

As described above, the motor 12 can be separated from the housing 38 without separating the housing 38.

Further, the engagement extension portion 44 is bent so that the engagement projection portion 46 of the engagement extension portion 44 is inserted through the engagement hole 24 of the bracket 20.
Then, the motor 12 is separated from the housing 38 by extracting the bracket 20 from between the upper surface 40 of the housing 38 and the engagement extension portion 44. Therefore, the motor 12 can be easily separated from the housing 38.

Further, in this embodiment, since the two engagement extension portions 44 are both extended in the same circumferential direction and in parallel, the upper surface 40 of the housing 38 and the engagement extension portion 44 are The direction in which the bracket 20 is withdrawn and inserted into the gap is the same circumferential direction. Therefore, by rotating the motor 12 about the drive shaft 16, the bracket 20 can be pulled out from between the upper surface 40 of the housing 38 and the engagement extension portion 44, and therefore, the motor 12 can be inserted through the insertion hole 42 of the housing 38. Drive shaft 16 to housing 38
Even when inserted inside, the upper surface 4 of the housing 38
The bracket 20 can be pulled out from between the zero and the engagement extension portion 44.

The reduction gears 26 to 30, the gear shafts 32 to
Since the output shaft 33, the output shaft 36, and the housing 38 are made of the same material (POM in the present embodiment), there is no need to separate these components as in the related art. Further, the reduction gears 26 to 30 are made of a high-sliding material (PO in this embodiment).
M), the reduction gears 26 to 30 are not coated with grease. For this reason, it is unnecessary to clean grease as in the related art. Thus, the motor 12
The recycling of the geared motor device 10 is completed only by separating the gears from the housing 38, and the number of recycling steps can be reduced.

As described above, in this embodiment, the geared motor device 10 can be very easily recycled.

In this embodiment, the bracket 20
Is provided with an engaging hole 24 as an engaging concave portion, and the engaging extending portion 44 is provided with an engaging convex portion 46 corresponding to the engaging hole 24. An engagement recess may be provided in the engagement extension portion 44 corresponding to the engagement protrusion. Second Embodiment FIG. 5 is a plan view showing a schematic internal configuration of a geared motor device 50 according to a second embodiment of the present invention, and FIG. The overall configuration of 50 is shown in a plan view. FIG.
8 shows a schematic configuration of the geared motor device 50 in a perspective view, and FIG. 8 shows a general configuration of the geared motor device 50 in a front view.

The geared motor device 50 according to the second embodiment has a motor 52 (stepping motor). A drive shaft 56 projects from a bottom surface 54 of the motor 52, and a drive gear 58 is attached to the drive shaft 56. A bracket 60 as a motor engaging member is fixed to the bottom surface 54 of the motor 52, and the bracket 60 has two engaging portions 62. This 2
The two engaging portions 62 are opposed to each other, and each project from the side surface 64 of the motor 52. Further, both of the two engaging portions 62 are provided with an engaging hole 66 as an engaging concave portion.

A reduction gear 68 meshes with the drive gear 58, and a reduction gear 69 is fixed to a gear shaft 76 of the reduction gear 68. A reduction gear 70 meshes with the reduction gear 69, and a reduction gear 71 is fixed to a gear shaft 77 of the reduction gear 70. The reduction gear 71 has a reduction gear 72.
The reduction gear 73 is fixed to a gear shaft 78 of the reduction gear 72. Further, a reduction gear 74 meshes with the reduction gear 73, and the output shaft 80
Is fixed. Thus, the driving force of the motor 52 is output to the output shaft 80 via the driving gear 58 and the reduction gears 68 to 74.

The reduction gears 68 to 74 are all made of POM made of a high sliding material.
The durability of 74 is ensured without applying grease. Further, the gear shafts 76 to 78 and the output shaft 80 are all made of POM made of a high sliding material.

The reduction gears 68 to 74, the gear shafts 76 to 78, and the output shaft 80 are housed in a housing 82 made of POM made of a high sliding material, and the output shaft 80 projects outside the housing 82.

A cylindrical insertion hole 86 is provided in the upper surface 84 of the housing 82, and the drive shaft 56 and the drive gear 58 of the motor 52 are inserted through the insertion hole 86. This allows the drive gear 58 to mesh with the reduction gear 68 as described above.

A plurality of engagement extending portions 88 are provided on the upper surface 84 of the housing 82 (two in the present embodiment).
The two engaging extension portions 88 extend along the upper surface 84 of the housing 82 so as to have elasticity. For this reason, by bending the engagement extension portion 88 and inserting the bracket 60 fixed to the motor 52 between the engagement extension portion 88 and the upper surface 84 of the housing 82, the engagement extension portion 88 and the housing 82 The bracket 60 is sandwiched between the bracket 60 and the upper surface 84.

Each of the two engagement extension portions 88 is provided with an engagement projection 90 corresponding to the engagement hole 66 of the bracket 60. Part 9
By engaging the engagement hole 66 with the engagement hole 66, the motor 52 is firmly fixed so as not to be displaced from the housing 82.

Further, the two engaging extension portions 88 are both extended along the same circumferential direction and in parallel, so that the motor 52 extends between the engaging extension portion 88 and the upper surface 84 of the housing 82. The direction of insertion of the bracket 60 fixed to the bracket is the same circumferential direction, and the direction of withdrawal of the bracket 60 from between the engaging extension portion 88 and the upper surface 84 of the housing 82 is the same circumferential direction. It has been like that.
For this reason, by rotating the motor 52 about the drive shaft 56 in the direction of arrow A or arrow B in FIGS. 6 and 7, the bracket 60 is attached and detached between the engagement extension 88 and the upper surface 84 of the housing 82. Have been able to.

Next, the operation of the present embodiment will be described.

In the geared motor device 50 having the above structure, when the motor 52 is fixed to the outside of the housing 82, first, the drive shaft 56 and the drive gear 58 of the motor 52 are inserted through the insertion hole 86 of the housing 82. The drive gear 58 meshes with the reduction gear 68. Thereafter, the engaging extension portion 88 is bent, and the motor 52 is rotated about the drive shaft 56 in the direction of arrow A in FIGS. 6 and 7, so that the motor extends between the engaging extension portion 88 and the upper surface 84 of the housing 82. The bracket 60 fixed to 52 is inserted. At this time, the engagement of the engagement protrusion 90 of the engagement extension portion 88 with the engagement hole 66 of the bracket 60 allows the motor 5 to be mounted outside the housing 82.
Fix 2

As described above, by bending the engagement extension portion 88 and inserting the bracket 60 fixed to the motor 52 between the upper surface 84 of the housing 82 and the engagement extension portion 88, the upper surface 84 of the housing 82 Since the bracket 60 can be sandwiched between the engaging extension portion 88 and the
2 can be easily fixed to the outside of the housing 82.

Further, the motor 52 is fixed to the outside of the housing 82 by engaging the engagement projection 90 of the engagement extension portion 88 with the engagement hole 66 of the bracket 60. It can be fixed firmly so that it does not shift.

When the motor 52 is fixed to the outside of the housing 82 as in this embodiment, the drive gear 58 attached to the drive shaft 56 is connected to the housing 8.
The housing 8 is engaged with the reduction gear 68 inside.
2 is provided with a cylindrical insertion hole 86, through which the drive shaft 56 of the motor 52 is inserted into the housing 82. In such a case, in order to move the motor 52 along the upper surface 84 of the housing 82 in order to attach and detach the bracket 60 between the upper surface 84 of the housing 82 and the engagement extending portion 88, the driving of the motor 52 The shaft 56 comes into contact with the insertion hole 86 of the housing 82. For this reason,
By moving the motor 52 along the upper surface 84 of the housing 82, the bracket 60 cannot be attached or detached between the upper surface 84 of the housing 82 and the engaging extension 88.

On the other hand, in the present embodiment, since the two engagement extension portions 88 are both extended in the same circumferential direction and in parallel, the upper surface 84 of the housing 82 and the engagement extension portion 88 The insertion directions of the brackets 60 between them are the same circumferential direction. For this reason, the motor 52 is connected to the drive shaft 56.
By rotating to the center, the upper surface 8 of the housing 82
4 and the engagement extension 88, the bracket 60 can be inserted.
Even when the drive shaft 56 of the motor 52 is inserted into the housing 82, the bracket 60 can be inserted between the upper surface 84 of the housing 82 and the engagement extension 88.

When the geared motor device 50 is operated, when the motor 52 is driven to rotate the drive gear 58, the reduction gears 68 to 74 rotate, and the driving force of the motor 52 is output to the output shaft 80. .

When the geared motor device 50 is recycled, the engagement extension portion 88 is bent so that the engagement extension portion 8 is inserted through the engagement hole 66 of the bracket 60 fixed to the motor 52.
8 and the motor 52 is rotated about the drive shaft 56 in the direction of arrow B in FIGS. 6 and 7, so that the distance between the engagement extending portion 88 and the upper surface 84 of the housing 82 is increased. Pull out the bracket 60 from. Thereafter, the motor 52 is separated from the housing 82 by extracting the drive shaft 56 of the motor 52 from the inside of the housing 82. At this time, the drive gear 58 is pulled out of the housing 82 together with the drive shaft 56 of the motor 52.

As described above, the motor 52 can be separated from the housing 82 without separating the housing 82.

Further, the engagement extension portion 88 is bent so that the engagement protrusion 90 of the engagement extension portion 88 is disengaged from the engagement hole 66 of the bracket 60.
The motor 52 is separated from the housing 82 by extracting the bracket 60 from between the upper surface 84 of the housing 82 and the engagement extending portion, so that the motor 52 can be easily separated from the housing 82.

Further, in this embodiment, since the two engagement extension portions 88 are both extended along the same circumferential direction and in parallel, the upper surface 84 of the housing 82 and the engagement extension portion 88 The direction in which the bracket 60 is pulled out and inserted into the gaps is the same circumferential direction. Therefore, by rotating the motor 52 about the drive shaft 56, the bracket 60 can be pulled out from between the upper surface 84 of the housing 82 and the engagement extension 88, and therefore, the motor 52 can be inserted through the insertion hole 86 of the housing 82. The drive shaft 56 of the housing 82
Even when inserted inside, the upper surface 8 of the housing 82
The bracket 60 can be extracted from between the engaging extension 4 and the engaging extension portion 88.

Further, the reduction gears 68 to 74 and the gear shafts 76 to 74
Since the output shaft 78, the output shaft 80, and the housing 82 are made of the same material (POM in this embodiment), there is no need to separate these components as in the related art. Further, the reduction gears 68 to 74 are made of a high sliding material (in this embodiment, PO
M), the reduction gears 68 to 74 are not coated with grease. For this reason, it is unnecessary to clean grease as in the related art. Thus, the motor 52
The recycling of the geared motor device 50 can be completed only by separating the gears from the housing 82, and the number of recycling steps can be reduced.

As described above, in this embodiment, the geared motor device 50 can be very easily recycled.

In this embodiment, the bracket 60
Is provided with an engaging hole 66 as an engaging concave portion, and an engaging convex portion 90 is provided on the engaging extending portion 88 corresponding to the engaging hole 66. An engagement recess may be provided in the engagement extension portion 88 corresponding to the engagement protrusion. [Third Embodiment] FIG. 9 is a plan view showing a schematic internal configuration of a geared motor device 100 according to a third embodiment of the present invention, and FIG. 100 is shown in a perspective view. FIG. 11 is a perspective view showing a schematic configuration of a main part of the geared motor device 100.

The geared motor device 100 according to the third embodiment is for a paper feeding device,
(DC motor). A drive shaft 104 protrudes from the motor 102, and a worm gear 106 as a drive gear is attached to the drive shaft 104.
The worm gear 106 is made of metal, so that the friction heat between the worm gear 106 and the other gears is transmitted by the worm gear 106 so that the friction heat can be dissipated.

The worm gear 106 has a reduction gear 108
(Wheel gear) mesh with each other, and a reduction gear 109 is fixed to a gear shaft 114 of the reduction gear 108. A reduction gear 110 meshes with the reduction gear 109, and a reduction gear 111 is mounted on a gear shaft 115 of the reduction gear 110.
Is fixed. Further, a reduction gear 112 meshes with the reduction gear 111, and the output shaft 11
8 is fixed. As a result, the driving force of the motor 102 is reduced by the worm gear 106 and the reduction gears 108 to 112.
Through the output shaft 118.

The reduction gears 108 to 112 are all made of POM made of a high-sliding material.
Nos. 08 to 112 are durable without application of grease. Further, the gear shafts 114 to 115 and the output shaft 118 are all made of POM made of a high sliding material.

The motor 102, the reduction gears 108 to 112,
The gear shafts 114 to 115 and the output shaft 118 are housed in a housing 120 made of POM made of a high-sliding material, and the motor 102, the gear shafts 114 to 115 and the output shaft 118 are fixed to the housing 120. The output shaft 118 protrudes outside the housing 120.

The housing 120 is composed of a cap 122 and a case 124.
24 is separable. Thus, the motor 102 accommodated in the housing 120 can be easily separated from the housing 120.

As shown in FIG. 11, the cap 122 is provided with a plurality of coupling extension portions 126 (four in this embodiment), and the coupling extension portions 126 have elasticity by extending in the case 124 direction. It has been like that.

Further, each of the coupling extension portions 126 is provided with a coupling hole 128 as a coupling concave portion. on the other hand,
The case 124 is provided with a plurality of coupling projections 130 (four in the present embodiment) corresponding to the coupling holes 128, and the coupling extension 128 is bent so that the coupling holes 128 and the coupling projections 130 are engaged. The cap 122 is connected to the case 124 by the combination.

Next, the operation of the present embodiment will be described.

In the geared motor device 100 having the above configuration, the cap 122 of the housing 120 and the case 1
In the case of joining the cap 24 and the case 124, the cap 122 and the case 124 are joined by bending the joining extension portion 126 to engage the joining hole 128 with the joining convex portion 130. Therefore, the cap 122 of the housing 120 and the case 12
4 can be easily and firmly bonded.

When operating the geared motor device 100, the motor 102 is driven to drive the worm gear 106.
Is rotated, the reduction gears 108 to 112 rotate, and the driving force of the motor 102 is output to the output shaft 118. When the motor 102 is driven, the worm gear 106 rotates at a high speed, so that frictional heat is generated between the worm gear 106 and the reduction gear 108. Here, since the worm gear 106 is made of metal, the worm gear 106 and the reduction gear 10
The frictional heat can be dissipated by the worm gear 106 transmitting the frictional heat during the period 8.

When the geared motor device 100 is to be recycled, first, the connecting extension 128 is bent so that the connecting hole 128 is pulled out from the connecting protrusion 130. Then, the housing 120 is replaced with the cap 122 and the case 124.
, The motor 1 housed in the housing 120
02 is separated from the housing 120. At this time, the worm gear 106 is taken out of the housing 120 together with the drive shaft 104 of the motor 102. Here, the connecting extension 128 is bent so that the connecting hole 128 is connected to the connecting protrusion 130.
As a result, the cap 122 can be easily separated from the case 124, so that the motor 102 can be easily separated from the housing 120.

The reduction gears 108 to 112, the gear shaft 1
Since the components 14 to 115, the output shaft 118, and the housing 120 are made of the same material (POM in this embodiment), there is no need to separate these components as in the related art. Furthermore, since the reduction gears 108 to 112 are made of a high sliding material (POM in this embodiment), no grease is applied to the reduction gears 108 to 112. For this reason, it is unnecessary to clean grease as in the related art.
As described above, the recycling of the geared motor device 100 is completed only by separating the motor 102 from the housing 120, and the number of recycling steps can be reduced.

As described above, in the present embodiment, the geared motor device 100 can be easily recycled.

In the present embodiment, the cap 122
A coupling hole 128 as a coupling concave portion is provided in the coupling extension portion 126, and a coupling convex portion 130 is provided in the case 124 in correspondence with the coupling hole 128. A coupling concave portion may be provided corresponding to the coupling convex portion.

In this embodiment, the cap 122
Is extended in the direction of the case 124 to provide a coupling extending portion 126, and the coupling extending portion 126 has a coupling hole 1 as a coupling concave portion.
On the other hand, the case 124 is provided with a coupling projection 130 corresponding to the coupling hole 128. However, the case 124 is extended in the direction of the cap 122 to provide a coupling extension. While the portion is provided, the cap 122 may be provided with a coupling convex portion or a coupling concave portion corresponding to the coupling concave portion or the coupling convex portion.

[Brief description of the drawings]

FIG. 1 is a front view of a schematic internal configuration of a geared motor device according to a first embodiment of the present invention.

FIG. 2 is a front view of the entire configuration of the geared motor device according to the first embodiment.

FIG. 3 is a perspective view of a schematic configuration of a geared motor device according to the first embodiment.

FIG. 4 is a plan view of a schematic configuration of the geared motor device according to the first embodiment.

FIG. 5 is a plan view of a schematic internal configuration of a geared motor device according to a second embodiment of the present invention.

FIG. 6 is a plan view of a schematic configuration of a geared motor device according to a second embodiment.

FIG. 7 is a perspective view of a schematic configuration of a geared motor device according to a second embodiment.

FIG. 8 is a front view of a schematic configuration of a geared motor device according to a second embodiment.

FIG. 9 is a plan view of a schematic internal configuration of a geared motor device according to a third embodiment of the present invention.

FIG. 10 is a perspective view of a schematic configuration of a geared motor device according to a third embodiment.

FIG. 11 is a perspective view of a main part of a geared motor device according to a third embodiment.

[Explanation of symbols]

Reference Signs List 10 geared motor device 12 motor 16 drive shaft 18 worm gear (drive gear) 20 bracket (motor engagement member) 24 engagement hole (engagement concave portion) 26-30 reduction gear 32-33 reduction gear gear shaft 36 output shaft 38 housing 40 Upper surface of housing (wall surface of housing) 44 Engagement extension 46 Engagement projection 50 Geared motor device 52 Motor 56 Drive shaft 58 Drive gear 60 Bracket (motor engagement member) 66 Engagement hole (engagement recess) 68- 74 reduction gear 76-78 reduction gear gear shaft 80 output shaft 82 housing 84 upper surface of housing (wall surface of housing) 88 engagement extension portion 90 engagement protrusion 100 geared motor device 102 motor 104 drive shaft 106 worm gear (drive gear) 108-112 Reduction gear 114-115 Reduction gear Ya axis 118 output shaft 120 housing 122 cap 124 case 126 coupling extending portion 128 coupling hole (coupling recess) 130 engagement projection

 ──────────────────────────────────────────────────続 き Continued from the front page F term (reference) EE36 JJ02 JJ06

Claims (9)

[Claims] 1. A geared motor device, wherein a drive gear is attached to a drive shaft of a motor, and a single or a plurality of reduction gears are engaged with the drive gear to output a driving force of the motor to an output shaft. A gear, a gear shaft of the reduction gear, and a housing for accommodating the output shaft, wherein the reduction gear, the gear shaft, the output shaft, and the housing are formed of the same material; apparatus. 2. The geared motor device according to claim 1, wherein the same material is a high sliding material. 3. The housing is constituted by a cap and a case, and the cap and the case are separable, and the motor is housed in the housing and is fixedly held between the cap and the case. The geared motor device according to claim 1 or 2, wherein 4. The cap is provided with a coupling extending portion extending in the case direction, and the coupling extending portion is provided with a coupling concave portion or a coupling convex portion, while the case is provided with the coupling concave portion or the coupling convex portion. 4. The geared motor device according to claim 3, wherein a coupling convex portion or a coupling concave portion is provided so as to correspond to the above, and the cap and the case are coupled by engaging the coupling concave portion with the coupling convex portion. . 5. The geared motor device according to claim 1, wherein the motor is fixed outside the housing. 6. A motor engaging member is fixed to the motor, and an engagement extending portion is provided on a wall surface of the housing to extend along the wall surface. 6. The geared motor device according to claim 5, wherein the motor is fixed to the outside of the housing by sandwiching the motor engaging member therebetween. 7. The motor engaging member is provided with an engaging concave portion or an engaging convex portion, while the engaging extending portion has an engaging convex portion or an engaging convex portion corresponding to the engaging concave portion or the engaging convex portion. 7. The geared motor device according to claim 6, wherein an engagement recess is provided, and the motor is fixed to the outside of the housing by engaging the engagement recess with the engagement projection. 8. A pair of said engagement extension portions are provided, and said pair of engagement extension portions are both extended along the same circumferential direction and in parallel, and by rotating said motor about said drive shaft, The geared motor device according to claim 6 or 7, wherein the motor engaging member is detachable between a wall surface of the housing and the engaging extension. 9. The geared motor device according to claim 1, wherein the drive gear is made of metal.