CN105553174A - Gear motor and pointer type displaying apparatus - Google Patents
Gear motor and pointer type displaying apparatus Download PDFInfo
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- CN105553174A CN105553174A CN201510646913.5A CN201510646913A CN105553174A CN 105553174 A CN105553174 A CN 105553174A CN 201510646913 A CN201510646913 A CN 201510646913A CN 105553174 A CN105553174 A CN 105553174A
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Abstract
The invention provides a gear motor and a pointer type displaying apparatus. The gear motor can prevent increase of sliding resistance of a last stage gear and prevent vibration of the last stage gear; and the pointer type displaying apparatus has the gear motor. In the gear motor (100), a first housing component (21) and a second housing component (22) has a first radial bearing (91) and a second radial bearing (92) enabling to a second gear (42) (the last stage gear) integrally rotating with an output part (10) to rotate; the second gear (42) is provided with a first axial supporting part (93); the first axial supporting part (93) is provided with a spring part (46) abutted against the first housing component (21) and enabling the second gear (42) to apply force to an output side (L1); and the second housing component (22) is provided with a second axial supporting part (94) abutted against the second gear (42) in the output side (L1) and winding an axis.
Description
Technical field
The final-stage gear that the present invention relates to a kind of gear train is the gear motor and pointer table showing device that can rotate by housing supporting.
Background technology
In pointer table showing device etc., the inside being used in housing has the gear motor of motor and gear train, and pointer is fixed on the efferent of gear motor.In the gear train of described gear motor, the final-stage gear that can rotate integrally with efferent is supported as rotating by housing.(with reference to patent documentation 1).
Patent documentation 1: Japan Patent is real opens clear 54-101274 publication
Patent documentation 2: Japanese Patent Laid-Open 2004-251656 publication
In gear motor, if final-stage gear vibrates because transmitting the vibration that comes from outside etc., then pointer also vibrates, and therefore, this is not desirable.Therefore, preferred final-stage gear is supported by journal bearing in the both sides of axis direction.Further, from the viewpoint suppressing final-stage gear vibration, preferred final-stage gear is supported on housing in the axial direction by spring, but the record not about described axially mounting portion in patent documentation 1,2.And, when final-stage gear is exerted a force by the side to axis direction by spring, in the axially mounting portion of a side bearing final-stage gear of axis direction, resistance to sliding increases, but does not also record in patent documentation 1,2 for the structure stoping resistance to sliding to increase.
Summary of the invention
In view of above problem, technical problem of the present invention is that providing a kind of can suppress the resistance to sliding of final-stage gear to increase, and the gear motor that final-stage gear can be suppressed to vibrate and the pointer table showing device with this gear motor.
In order to solve above-mentioned problem, the feature of gear motor involved in the present invention is, it comprises: the first housing parts; Second housing parts, described second housing parts is overlapping with the side of described first housing parts and configure; Motor part, described motor part is configured between described first housing parts and described second housing parts; and gear train, described gear train is configured between described first housing parts and described second housing parts, and the rotation of described motor part is passed to efferent, described first housing parts has the first journal bearing, the final-stage gear that can rotate integrally with described efferent in described gear train supports as rotating by described first journal bearing, described second housing parts has the second journal bearing, described final-stage gear supports as rotating by described second journal bearing, a side in described final-stage gear and described first housing parts has the first axially mounting portion, described first axially mounting portion has and to abut with the opposing party in described final-stage gear and described first housing parts and the spring exerted a force to the side of axis direction by described final-stage gear, a side in described final-stage gear and described second housing has the second axially mounting portion, described second axially mounting portion abuts with the opposing party in described final-stage gear and described second housing in the axial direction at the part place around axis of described final-stage gear.
In the present invention, owing to being formed with the first journal bearing, the second journal bearing, the first axially mounting portion with spring and the second radial support portion relative to final-stage gear, therefore, it is possible to suppress final-stage gear to vibrate because transmitting the vibration that comes from outside etc.At this, because the spring of final-stage gear by the first axially mounting portion is exerted a force by the side to axis direction, therefore, the contact at the second place of axially mounting portion is larger, but in the second axially mounting portion, final-stage gear abuts at the part place around axis with the second housing parts.Therefore, the resistance to sliding at the second place of axially mounting portion is less.
In the present invention, preferably described second axially mounting portion is formed multiple around described axis with the pitch angle of less than 180 °.According to described structure, reliably final-stage gear can be supported by the second axially mounting portion.
In the present invention, preferably described second axially mounting portion becomes the face extended in circular arc around described axis.According to described structure, reliably final-stage gear can be supported by the second axially mounting portion.
In the present invention, preferably described second axially mounting portion is formed in the side of described second housing parts.According to described structure, reliably final-stage gear can be supported by the second axially mounting portion.
In the present invention, preferably described second journal bearing is outstanding to described first housing parts from described second housing parts.According to described structure, because the second journal bearing can support final-stage gear with the longer size of axis direction, therefore, it is possible to stable posture supporting final-stage gear.
In the present invention, the end of at least described first housing parts side of preferably outstanding to the side of described first housing parts in described second journal bearing part is divided into multiple around described axis.According to described structure, the resistance to sliding at the second journal bearing place can be reduced.
In the present invention, preferably described second axially mounting portion is formed towards the end face of described second housing parts side by described second journal bearing.According to described structure, the second journal bearing can be utilized to form the second axially mounting portion.
In the present invention, preferably described first axially mounting portion is made up of the spring of tabular, and described spring is formed at the plectane portion being formed with external tooth at outer peripheral face in described final-stage gear.According to described structure, the spring of split can not be used to form spring.
Apply gear motor of the present invention and can be used in pointer table showing device, described pointer table showing device has the pointer being fixed on described efferent.
In the present invention, preferred described final-stage gear, described efferent and described pointer are made up of transparent member, be configured with light source portion in described first housing parts side, described light source portion makes illumination light inject the end of the described first housing parts side of described final-stage gear.According to described structure, because no matter pointer is positioned at where, the periphery of pointer and pointer can be irradiated, therefore be easy to visual confirmation and represent.
In the present invention, the end face of the described first housing parts side of preferred described final-stage gear is made up of convex surface.According to described structure, the illumination light injecting final-stage gear can be suppressed to spill from final-stage gear.
In the present invention, owing to being formed with the first journal bearing, the second journal bearing, the first axially mounting portion with spring and the second axially mounting portion relative to final-stage gear, therefore, it is possible to suppress final-stage gear to vibrate because transmitting the vibration that comes from outside etc.At this, because the spring of final-stage gear by the first axially mounting portion is exerted a force by the side to axis direction, therefore, the contact at the second place of axially mounting portion is larger, but in the second axially mounting portion, final-stage gear abuts at the part place around axis with the second housing parts.Therefore, the resistance to sliding at the second place of axially mounting portion is less.
Accompanying drawing explanation
Fig. 1 (a), Fig. 1 (b) are the key diagrams applying gear motor of the present invention.
Fig. 2 is the cutaway view when the position cutting through efferent and fulcrum applies gear motor of the present invention.
Fig. 3 (a), Fig. 3 (b) make the second housing parts from the exploded perspective view the state that the first housing parts is separated applying in gear motor of the present invention.
Fig. 4 (a), Fig. 4 (b) make the second gear etc. from the exploded perspective view the state that the first housing parts is separated applying in gear motor of the present invention.
Fig. 5 (a), Fig. 5 (b), Fig. 5 (c), Fig. 5 (d), Fig. 5 (e) are the key diagrams of the second gear for applying gear motor of the present invention.
Symbol description
1 motor part;
2 housings;
4 gear trains;
5 rotors;
6 stators;
7 bobbins;
8 coils;
10 efferents;
11 pointers;
12 links;
13 light source portion;
21 first housing parts;
22 second housing parts;
41 first gears;
42 second gears;
43 plectane portions;
44 the first axle parts;
45 the second axle parts;
46 spring;
49 carriers;
91 first journal bearings;
92 second journal bearings;
93 first axial axis bearing portion;
94 second axially mounting portions;
100 gear motors;
120 reflectings surface;
200 pointer table showing devices;
210 end plate;
211 main parts;
216 through holes;
220 end plate;
221 main parts;
227 protuberances;
228 end faces;
The end face of 443 the first axle parts;
461 protuberances;
The axis of L efferent;
L1 outlet side;
L2 exports opposition side.
Embodiment
Referring to accompanying drawing to applying gearmotor unit of the present invention and pointer table showing device is described.In addition, in the following description, on the direction that the axis L of efferent 10 extends, using side outstanding for efferent 10 as outlet side (side of axis direction) L1, using side (opposite side) contrary for the side outstanding with efferent 10 as exporting opposition side (side of axis direction) L2.Further, using the axis of the rotor 5 of motor part 1 as pivot axis L0.Further, conveniently, also using the side of pivot axis L0 as outlet side L1, using the opposite side of pivot axis L0 as output opposition side L2 be described.
(overall structure of pointer table showing device)
Fig. 1 is the key diagram applying gear motor 100 of the present invention, and Fig. 1 (a) is the stereogram observing gear motor 100 from outlet side L1, and Fig. 1 (b) is the stereogram from exporting opposition side L2 observation gear motor 100.Fig. 2 is the cutaway view applying gear motor 100 of the present invention in the position cutting through efferent 10 and fulcrum 410.Fig. 3 makes the second housing parts 22 from the exploded perspective view the state that the first housing parts 21 is separated applying in gear motor 100 of the present invention, Fig. 3 (a) is the exploded perspective view observing above-mentioned state from outlet side L1, and Fig. 3 (b) is the exploded perspective view observing above-mentioned state from output opposition side L2.Fig. 4 makes the second gear 42 (final-stage gear) etc. from the exploded perspective view the state that the first housing parts 21 is separated applying in gear motor 100 of the present invention, Fig. 4 (a) is the exploded perspective view observing above-mentioned state from outlet side L1, and Fig. 4 (b) is the exploded perspective view observing above-mentioned state from output opposition side L2.In addition, in the cross section shown in Fig. 2, when the position cutting gear motor 100 through efferent 10 and fulcrum 410, do not indicate protuberance 227 and the end face 228 in formation second journal bearing 92 and the second axially mounting portion 94, but represent protuberance 227 and end face 228 with single dotted broken line.
Gear motor 100 shown in Fig. 1-Fig. 4 has the efferent 10 of shaft-like from housing 2 towards the structure that the outlet side L1 in axis L direction is outstanding.Gear motor 100 in present embodiment is used in reference to pin type indication device 200, and efferent 10 is connected with pointer 11.
Housing 2 have when observing from axis L direction be circular the first housing parts 21 and observe from axis L direction time be that the second housing parts 22, second housing parts 22 of circular is overlapping with the first housing parts 21 from outlet side L1.First housing parts 21 has end plate 210 and the main part 211 from the outer rim of end plate 210 tubular outstanding to outlet side L1, is formed with engaging protuberance 219 in the circumferential many places of the outer peripheral face of main part 211.Second housing parts 22 has end plate 220 and from the outer rim of end plate 220 to the main part 221 exporting the outstanding tubular of opposition side L2, is formed with hook 229 in the circumferential many places of main part 221.Therefore, as long as make hook 229 engage with engaging protuberance 219 to be combined with the second housing parts 22 by the first housing parts 21, just housing 2 can be formed.In addition, in the first housing parts 21, outstanding to output opposition side L2 from end plate 210 for the cylinder portion 215a of the fixing grade of gear motor 100 and axle portion 215b etc.
(structure of motor part 1)
Gear motor 100 has motor part 1 in the inside of housing 2.Motor part 1 has rotor 5 and is configured in the stator 6 around rotor 5.Rotor 5 has rotating shaft 51, the end of the output opposition side L2 of rotating shaft 51 is formed on the axis hole 213a supporting of the end plate 210 of the first housing parts 21 for rotating, and the end of the outlet side L1 of rotating shaft 51 is formed on the axis hole 223a supporting of the end plate 220 of the second housing parts 22 for rotating.
Rotor 5 has the pinion 58 of the end of the outlet side L1 in the pivot axis L0 direction being arranged at rotating shaft 51 and cylindric magnet 50, is equiangularly alternately formed with S pole and N pole in interval at the outer peripheral face of magnet 50.In the present embodiment, magnet 50 is molding by insert with the pinion 58 be formed from a resin and is integrated.Stator 6 has stator core 60, and described stator core 60 has across the gap multiple salient poles opposed with the outer peripheral face of magnet 50, and two salient poles (main pole) in multiple salient pole are wound with coil 8 by bobbin 7.Stator core 60, in tabular, is consisted of multiple magnetic of stacked stamping-out established practice shaped.Be formed for the through hole 68 of the fulcrum 410 of the first gear 41 described later at stator core 60.Maintain at bobbin 7 and be wound around and be connected to multiple terminal pins 70 of the end of coil 8, the end of terminal pins 70 is outstanding to output opposition side L2 through the hole 213c of the end plate 210 being formed at the first housing parts 21.
Gear motor 100 has makes the rotation of rotor 5 slow down and the gear train 4 being passed to efferent 10, and gear train 4 has the first gear 41 and the second gear (final-stage gear) 42.First gear 41 has the large diameter gear 411 and small-diameter gear 412 that engage with the pinion 58 of rotor 5.Second gear 42 has the plectane portion 43 being formed with the external tooth 431 engaged with small-diameter gear 412 at outer peripheral face.First gear 41 is supported as rotating by fulcrum 410.The end of the output opposition side L2 of fulcrum 410 is held in axis hole 213b, this axis hole 213b is formed at the end plate 210 of the first housing parts 21, the end of the outlet side L1 of fulcrum 410 is held in axis hole 223b, and this axis hole 223b is formed at the end plate 220 of the second housing parts 22.
(structure of the second gear 42)
Fig. 5 is the key diagram of the second gear 42 for applying gear motor 100 of the present invention, Fig. 5 (a) is the end view of the second gear 42, Fig. 5 (b) is the stereogram observing the second gear 42 from the incline direction of outlet side L1, Fig. 5 (c) is the stereogram observing the second gear 42 from the incline direction exporting opposition side L2, Fig. 5 (d) is the vertical view observing the second gear 42 from outlet side L1, and Fig. 5 (e) is the upward view observing the second gear 42 from output opposition side L2.
Second gear 42 is the final-stage gears rotating to efferent 10 transmission and rotate integrally with efferent 10, and has the structure illustrated referring to Fig. 3, Fig. 4 and Fig. 5.
In Fig. 3, Fig. 4 and Fig. 5, second gear 42 has the first axle part 44 exporting opposition side L2 extension from the mediad in plectane portion 43 and the second axle part 45 extended from the mediad outlet side L1 in plectane portion 43, and efferent 10 is made up of the end of the outlet side L1 of the second axle part 45.The first axle part 44 there is the large-diameter portion 441 that is positioned at outlet side L1 and diameter less than the diameter of large-diameter portion 441 and from large-diameter portion 441 to exporting the outstanding minor diameter part 442 of opposition side L2.In the present embodiment, the end face 443 of the output opposition side L2 of minor diameter part 442 is in convex surface.Further, the second gear 42 has in the step-like circular carrier 49 outstanding to outlet side L1 in central authorities' (root portion of the second axle part 45) in plectane portion 43.
The groove 47 along through plectane portion 43, axis L direction is formed in plectane portion 43.Groove 47 is after extending to the side around axis L, and the opposite side in U-shaped bending to circumference extends.Consequently, in plectane portion 43, the spring 46 of the tabular that circumferential one end is connected with plectane portion 43 is become by the part that groove 47 surrounds.Further, be formed to exporting the outstanding less protuberance 461 of opposition side L2 at the end side of spring 46.Two places that spring 46 is formed as in the circumferential angularly interval extend to equidirectional, and the pitch angle of two spring 46 is 180 °.
Being circumferentially formed to exporting the outstanding protuberance 48 of opposition side L2 by the position that two spring 46 clamp in plectane portion 43, protuberance 48, by abutting with rib 214 described later in the circumferential, is construed as limiting the limiting unit of the movable range of the second gear 42.
(supporting structure to the second gear 42)
Through hole 216 and the axis L of the circle that internal diameter is identical with the external diameter of the minor diameter part 442 of the first axle part 44 of the second gear 42 be coaxial be formed at the end plate 210 of the first housing parts 21.Further, be formed with the rib 214 of cylindrical portion 217 and tabular on the surface of the outlet side L1 of end plate 210, wherein, above-mentioned cylindrical portion 217 and through hole 216 are in coaxial, and internal diameter is larger than the internal diameter of through hole 216, and above-mentioned rib 214 extends from cylindrical portion 217.Rib 214 be formed at around cylindrical portion 217 angularly interval everywhere, the rib 214 at three places in rib 214 is everywhere connected with main part 211.The internal diameter of cylindrical portion 217 is larger than the external diameter of the large-diameter portion 441 of the first axle part 44 of the second gear 42, and the inner surface of cylindrical portion 217 does not contact with the large-diameter portion 441 of the first axle part 44 of the second gear 42.
Be formed at the hole 218a exporting the rectangle that opposition side L2 is communicated with through hole 216 in end plate 210, be formed with the cylindrical portion 218b of surrounds aperture 218a on the surface of the output opposition side L2 of end plate 210.
In the end plate 220 of the second housing parts 22, with axis L be coaxial form the outstanding cylindrical portion 226 of oriented outlet side L1, the internal diameter of cylindrical portion 226 is slightly larger than the external diameter of the second axle part 45 of the second gear 42.Be formed with same size to the protuberance 227 exporting two outstanding tabulars of opposition side L2 at the output opposition side L2 of end plate 220.In the present embodiment, when observing from output opposition side L2, two protuberances 227 are formed as the arc-shaped centered by axis L.That is, two protuberances 227 become the structure split in the circumferential to exporting the outstanding cylindrical portion of opposition side L2.Therefore, the end face 228 of the output opposition side L2 of two protuberances 227 extends in the arc-shaped centered by axis L.Two protuberances 227 are formed in the position at the angularly interval centered by axis L, and the pitch angle of two protuberances 227 is 180 °.Two protuberances 227 are separated in the circumferential, but this separating distance is less than the extension size (girth) of a protuberance 227.At this, with the imaginary circle connect in the inner peripheral surface of two protuberances 227 relative to cylindrical portion 226 in same heart shaped, imaginary diameter of a circle is same with cylindrical portion 226, is the diameter identical with the external diameter of the second axle part 45 of the second gear 42.
In the present embodiment, the first housing parts 21 so formed and the second housing parts 22 is utilized to form the support of following explanation.First, the through hole 216 being formed at the first housing parts 21 forms the first journal bearing 91, and described first journal bearing 91 is embedded in the minor diameter part 442 of the first axle part 44 of the second gear 42 and supports the outer peripheral face of the second gear 42 for can rotate around axis L.Further, the cylindrical portion 226 and the protuberance 227 that are formed at the second housing parts 22 form the second journal bearing 92, and the outer peripheral face of the second axle part 45 of the second gear 42 supports as can rotate around axis L by described second journal bearing 92.
The protuberance 461 being formed at spring 46 abuts with the end face of the outlet side L1 of the cylindrical portion 217 of the first housing parts 21, and this spring 46 is formed at the plectane portion 43 of the second gear 42.Therefore, spring 46 forms the first axially mounting portion 93, and the second gear 42 supports from the output opposition side L2 in axis L direction under the state exerted a force to the side (outlet side L1) in axis L direction by the second gear 42 in described first axially mounting portion 93.
The end face 228 being formed at the output opposition side L2 of two protuberances 227 of the second housing parts 22 forms the second axially mounting portion 94, this the second axially mounting portion 94 abuts from the outlet side L1 in axis L direction with in the circular carrier 49 being formed at the second gear 42, and supports the second gear 42 from the outlet side L1 in axis L direction.
(structure of light source portion)
In the present embodiment, the second gear 42, efferent 10 and pointer 11 are made up of the resin material of light transmission.Therefore, in the present embodiment, configure the light source portion such as LED (light-emitting diode) 13 (with reference to Fig. 4) at the hole 218a of end plate 210 and the inner side of cylindrical portion 218b that are formed at the first housing parts 21, make to inject from the end face 443 of the first axle part 44 of the second gear 42 from the illumination light of light source portion injection.Consequently, the illumination light penetrated from light source portion 13 penetrates from pointer 11 through the second gear 42, efferent 10 and pointer 11.Therefore, no matter pointer 11 is positioned at where, can irradiate pointer 11 self and its periphery all the time, therefore, is all easy to the expression of visual confirmation pointer 11.Further, because the end face 443 of the first axle part 44 of the second gear 42 becomes convex surface, therefore, it is possible to make the light injected from end face 443 inject the first axle part 44 as convergence light.Therefore, illumination light not easily spills from the second gear 42 and efferent 10.
At this, when pointer 11 is fixed on efferent 10, as long as use the link 12 such as cap of light transmission of reflecting surface 120 comprising tilting relative to efferent 10 and pointer 11 45 °, the light just can advanced with the inside that reflecting surface 120 is reflected in efferent 10, can guide pointer 11 efficiently.
(action)
In the gear motor 100 formed like this and pointer table showing device 200, if powered to coil 8 by terminal pins 70, then rotor 5 rotates, described in be rotated through gear train 4 and be passed to efferent 10.Therefore, the pointer 11 being connected to efferent 10 rotates.Now, by inputting the driving pulse of regulation to coil 8, the angle position of pointer 11 can be switched, and can making after pointer 11 dextrorotation goes to target location, to make pointer 11 stop.Further, as long as provide the driving pulse of reverse rotation, pointer just can be made to be rotated counterclockwise to other target locations.
(main efficacy results of the manner)
The explanation done as above, in the gear motor 100 of present embodiment, owing to being formed with the first journal bearing 91, second journal bearing 92 relative to the second gear 42 (final-stage gear), there is the first axially mounting portion 93 and the second radial support portion 94 of spring 46, therefore, it is possible to suppress the second gear 42 and efferent 10 to vibrate because transmitting the vibration that comes from outside etc.Therefore, be applicable to be used in reference to pin type indication device 200.
At this, because the second gear 42 is exerted a force, therefore, it is possible to more effectively suppress the vibration of the second gear 42 and efferent 10 by the side (outlet side L1) to axis L direction by the spring 46 in the first radial support portion 93.Further, if exerted a force to outlet side L1 by the second gear 42, then contact becomes large in the second axially mounting portion 94, but in the second axially mounting portion 94, the second gear 42 abuts at the part place around axis L with the second housing parts 22.Therefore, the resistance to sliding at the second place of axially mounting portion 94 is less.
In the present embodiment, the second axially mounting portion 94 is made up of the end face 228 of two protuberances 227 formed with the pitch angle of 180 ° around axis L.Further, the second axially mounting portion 94 (end face 228) around axis L be arc-shaped extend.Further, the second axially mounting portion 94 (end face 228) is arranged on the side of the second housing parts 22.Therefore, it is possible to reliably support the second gear 42 by the second axially mounting portion 94.
Further, the second journal bearing 92 is also by supporting the second gear 42 from the protuberance 227 that the second housing parts 22 is outstanding to the first housing parts 21.Therefore, due under the state that the second journal bearing 92 supports the second gear 42 in the size longer with axis L direction, therefore, it is possible to support the second gear 42 with stable posture.Further, in the second journal bearing 92, because the entirety of protuberance 227 is divided in the circumferential, therefore, it is possible to reduce the resistance to sliding at the second journal bearing 92 place.Further, the second axially mounting portion 94 is formed, therefore, it is possible to the simplification of implementation structure owing to utilizing from the end face 228 of the second housing parts 22 protuberance 227 (the second journal bearing 92) outstanding to the first housing parts 21.
Further, in the first axially mounting portion 93, make use of the spring 46 of the tabular in the plectane portion being formed at the second gear 42, therefore, it is possible to do not use the spring of split to form spring.
[another execution mode]
In the above-described embodiment, enumerate example gear motor 100 being applied to pointer table showing device 200, but the present invention also can be applied to outside pointer table showing device gear motor 100.
In the above-described embodiment, the spring 46 in the first axially mounting portion 93 is arranged on the second gear 42 side, but also spring can be arranged on the first housing parts 21 side.
In the above-described embodiment, the second axially mounting portion 94 is arranged on the second housing parts 22 side, but also the second axially mounting portion 94 can be arranged on the second gear 42 side.
In the present embodiment, gear train 4 has two gears (first gear 41 and the second gear 42), but also can when gear train 4 have three to cog apply the present invention, as long as in arbitrary situation with reference to Fig. 1-Fig. 5 illustrate structure be applied to the final-stage gear rotated integrally with efferent 10.
In the above-described embodiment, second axially mounting portion 94 is formed at two places around axis L with the pitch angle of 180 °, but also can be formed with the second axially mounting portion 94 of more than or three, when being formed with the second axially mounting portion 94 of more than three, form the second axially mounting portion 94 around axis L with the pitch angle of less than 180 °.Equally, in the above-described embodiment, spring 46 is formed at two places around axis L with the pitch angle of 180 °, but also can be formed with the spring 46 of more than or three, when being formed with more than three spring 46, form spring 46 around around axis L with the pitch angle of less than 180 °.
Claims (13)
1. a gear motor, is characterized in that, described gear motor comprises:
First housing parts;
Second housing parts, described second housing parts is overlapping with the side of described first housing parts and configure;
Motor part, described motor part is configured between described first housing parts and described second housing parts; And
Gear train, described gear train is configured between described first housing parts and described second housing parts, and the rotation of described motor part is passed to efferent,
Described first housing parts has the first journal bearing, and the final-stage gear that can rotate integrally with described efferent in described gear train supports as rotating by described first journal bearing,
Described second housing parts has the second journal bearing, and described final-stage gear supports as rotating by described second journal bearing,
A side in described final-stage gear and described first housing parts has the first axially mounting portion, described first axially mounting portion has and to abut with the opposing party in described final-stage gear and described first housing parts and the spring exerted a force to the side of axis direction by described final-stage gear
A side in described final-stage gear and described second housing has the second axially mounting portion, and described second axially mounting portion abuts with the opposing party in described final-stage gear and described second housing in the axial direction at the part place around axis of described final-stage gear.
2. gear motor according to claim 1, is characterized in that,
Described second axially mounting portion is formed multiple around described axis with the pitch angle of less than 180 °.
3. gear motor according to claim 2, is characterized in that,
Described second axially mounting portion becomes the face extended in circular arc around described axis.
4. gear motor according to any one of claim 1 to 3, is characterized in that,
Described second axially mounting portion is formed in the side of described second housing parts.
5. gear motor according to claim 4, is characterized in that,
Described second journal bearing is outstanding to described first housing parts from described second housing parts.
6. gear motor according to claim 5, is characterized in that,
The end of at least described first housing parts side of part outstanding to the side of described first housing parts in described second journal bearing is divided into multiple around described axis.
7. gear motor according to claim 6, is characterized in that,
Described second axially mounting portion is formed towards the end face of described second housing parts side by described second journal bearing.
8. gear motor according to any one of claim 1 to 3, is characterized in that,
Described first axially mounting portion is made up of the spring of tabular, and described spring is formed at the plectane portion being formed with external tooth at outer peripheral face in described final-stage gear.
9. gear motor according to claim 4, is characterized in that,
Described first axially mounting portion is made up of the spring of tabular, and described spring is formed at the plectane portion being formed with external tooth at outer peripheral face in described final-stage gear.
10. the gear motor according to any one of claim 5 to 7, is characterized in that,
Described first axially mounting portion is made up of the spring of tabular, and described spring is formed at the plectane portion being formed with external tooth at outer peripheral face in described final-stage gear.
11. 1 kinds of pointer table showing devices, have the gear motor according to any one of claim 1 to 10, it is characterized in that,
Described pointer table showing device has the pointer being fixed on described efferent.
12. pointer table showing devices according to claim 11, is characterized in that,
Described final-stage gear, described efferent and described pointer are made up of transparent member,
Be configured with light source portion in described first housing parts side, described light source portion makes illumination light inject the end of the described first housing parts side of described final-stage gear.
13. pointer table showing devices according to claim 12, is characterized in that,
The end face of the described first housing parts side of described final-stage gear is made up of convex surface.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014-218508 | 2014-10-27 | ||
| JP2014218508A JP2016086556A (en) | 2014-10-27 | 2014-10-27 | Geared motor and pointer-type display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105553174A true CN105553174A (en) | 2016-05-04 |
Family
ID=55161759
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510646913.5A Pending CN105553174A (en) | 2014-10-27 | 2015-10-08 | Gear motor and pointer type displaying apparatus |
| CN201520777155.6U Expired - Fee Related CN205004888U (en) | 2014-10-27 | 2015-10-08 | Gear motor and pointer -type expression device |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520777155.6U Expired - Fee Related CN205004888U (en) | 2014-10-27 | 2015-10-08 | Gear motor and pointer -type expression device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP2016086556A (en) |
| CN (2) | CN105553174A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108667207A (en) * | 2017-03-27 | 2018-10-16 | 日本电产三协（浙江）有限公司 | Gearmotor and opening and closing device |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2016086556A (en) * | 2014-10-27 | 2016-05-19 | 日本電産サンキョー株式会社 | Geared motor and pointer-type display device |
| JP6733593B2 (en) * | 2017-04-13 | 2020-08-05 | 株式会社デンソー | Step motor and vehicle pointer instrument |
| JP7056162B2 (en) * | 2018-01-17 | 2022-04-19 | 株式会社デンソー | Motor with deceleration mechanism |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101505075A (en) * | 2008-11-18 | 2009-08-12 | 无锡麦克络微电机有限公司 | Vibration preventing automobile instrument motor |
| JP2012078713A (en) * | 2010-10-05 | 2012-04-19 | Casio Comput Co Ltd | Cover opening/closing device |
| CN102472327A (en) * | 2009-07-30 | 2012-05-23 | 罗伯特·博世有限公司 | Bearing device |
| CN103105185A (en) * | 2011-11-14 | 2013-05-15 | 移动磁体技术公司 | Display module for an instrument panel with fluid movement |
| CN203193454U (en) * | 2013-04-11 | 2013-09-11 | 深圳市美泰微电机有限公司 | Instrument motor with light-transmitting shaft |
| CN205004888U (en) * | 2014-10-27 | 2016-01-27 | 日本电产三协株式会社 | Gear motor and pointer -type expression device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0266718U (en) * | 1988-11-02 | 1990-05-21 | ||
| JP2002354777A (en) * | 2001-03-23 | 2002-12-06 | Tdk Corp | Stepping motor |
| JP2009068628A (en) * | 2007-09-14 | 2009-04-02 | Asmo Co Ltd | Geared motor |
| JP5631033B2 (en) * | 2009-11-09 | 2014-11-26 | 矢崎総業株式会社 | Rotating shaft pointer mounting structure and meter device |
| JP5345099B2 (en) * | 2010-04-09 | 2013-11-20 | 矢崎総業株式会社 | Instrument unit |
-
2014
- 2014-10-27 JP JP2014218508A patent/JP2016086556A/en active Pending
-
2015
- 2015-10-08 CN CN201510646913.5A patent/CN105553174A/en active Pending
- 2015-10-08 CN CN201520777155.6U patent/CN205004888U/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101505075A (en) * | 2008-11-18 | 2009-08-12 | 无锡麦克络微电机有限公司 | Vibration preventing automobile instrument motor |
| CN102472327A (en) * | 2009-07-30 | 2012-05-23 | 罗伯特·博世有限公司 | Bearing device |
| JP2012078713A (en) * | 2010-10-05 | 2012-04-19 | Casio Comput Co Ltd | Cover opening/closing device |
| CN103105185A (en) * | 2011-11-14 | 2013-05-15 | 移动磁体技术公司 | Display module for an instrument panel with fluid movement |
| CN203193454U (en) * | 2013-04-11 | 2013-09-11 | 深圳市美泰微电机有限公司 | Instrument motor with light-transmitting shaft |
| CN205004888U (en) * | 2014-10-27 | 2016-01-27 | 日本电产三协株式会社 | Gear motor and pointer -type expression device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108667207A (en) * | 2017-03-27 | 2018-10-16 | 日本电产三协（浙江）有限公司 | Gearmotor and opening and closing device |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2016086556A (en) | 2016-05-19 |
| CN205004888U (en) | 2016-01-27 |
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Application publication date: 20160504 |