JPH0443863A - Starter motor equipped with intermediate gear - Google Patents

Abstract

PURPOSE:To smooth the axial movement of an intermediate gear by loosely fitting the circular portion of a moving connector in the outer periphery of the rear end of an outer clutch, and connecting the circulat portion thereto in the direction of its axis, and loosely fitting an engagement portion in the whole of or half the outer periphery or circular channel of the boss portion of the intermediate gear, and engaging the engagement portion therewith in the direction of its axis. CONSTITUTION:A circular portion 68a is loosely fitted in the outer periphery of the rear end portion of an outer clutch 51 and is engaged therewith in the direction of its axis. An engagement portion 68b projected from the circular direction 68a in the direction of its radius is loosely fitted in at least half the circumference of the outer peripheral portion of the boss portion 67a of an intermediate gear 67 and is engaged therewith in the direction of the axis of the gear 67. The forked end portion of a shift lever 20 is engaged with either the circular portion 68a or the boss portion 67a of the intermediate gear 67 in the direction of the axis of the gear 67 and is exerted with a force by which to shift the same. Thereby the intermediate gear 67 is smoothly shifted in the direction of its axis and also the area of engagement of the engagement portion 68b with the intermediate gear 67 in the axial direction is increased and abrasion is decreased so as to extend the life of the intermediate gear.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a starter motor with an intermediate gear that transmits the rotation of the motor through an overrunning clutch and an intermediate gear to a ring gear of an internal combustion engine for starting rotation.

[Conventional technology]

FIG. 19 is a sectional view of a main part of a conventional starter motor with an intermediate gear disclosed in, for example, Japanese Utility Model Application Publication No. 58-84369.

In the figure, 1 is a DC motor, and an armature rotating shaft 3 extends from an armature 2 forward (to the right in the figure). 5 is a front bracket to which the DC motor 1 is connected, and a sleeve bearing 6
0γ, which supports the front end portion of the rotating shaft 30 via the overrunning clutch, is an overrunning clutch that is mounted on the rotating shaft 3 and supported for free movement in the axial direction, and is configured as follows. 8 is a helical spline 4 on the outer periphery of the rotating shaft 3
9 is a clutch inch in which unidirectional rotation is transmitted to the clutch outer 8 through rollers 10, and the front end of the clutch inner 9, which is supported on the rotating shaft 3 through a sleeve bearing 17, is A binion 11 is integrally formed. 12 is a clutch cover which is caulked and fixed to the clutch outer 8 via the contact plate 13; 14 is a locking ring attached to the clutch outer 8;
An engagement groove 15 is formed between the stepped portion of the clutch outer 8 and the stepped portion. 16 is an eccentricity regulating ring fixed to the inner part of the clutch actuator 8. 020 is a shift lever whose forked tip is engaged with the engagement groove 15, and whose intermediate fulcrum is supported by a plate 21. has been done. The support plate 21 is received by a grommet 22 attached to the yoke of the electric motor 1 via a buffer spring 23. The zero shift renocouple 20 is attached to the tip of a plunger (not shown) of an electromagnetic switch attached to the electric motor 1. The other end is connected and rotated around the fulcrum.

24 is a support shaft fixed to the front bracket 5 parallel to the rotating shaft 3, and 25 is a grommet. 26 is an intermediate gear supported by the support shaft 24 via a sleeve bearing fixed to the inner part, and the boss portion 26! An annular groove 2 is formed on the outer periphery of L. A transfer ring 29 is fixed to the outer periphery of the clutch cover 12, and is provided with a radial annular protrusion 29a, which engages with the annular groove 2f.

The state of engagement between the annular protrusion 29a of the transfer ring 2ρ and the annular groove 27 of the intermediate gear 26 is shown in FIG.

The operation of the above conventional device will be explained next.

When the excitation coil (not shown) of the electromagnetic switch is energized, the plunger is attracted and the shift lever 20 is rotated counterclockwise. As a result, the overrunning clutch 7 moves forward (in the A direction) and is attached to the rotating shaft 3 and is received by the stopper 18. ◇With the movement of the overrunning clutch 7, the intermediate gear 26 is transferred to the support shaft via the transfer ring 29. 24, and meshes with the ring gear 3o of the internal combustion engine. Then, the fixed contact of the electromagnetic switch is closed, the circuit of the DC motor 1 is energized, the armature 2 starts rotating, and the rotation of the rotating shaft 3 is caused by the overrunning clutch 7, pinion 11, . It is transmitted via the intermediate gear 26 and the ring gear 3
o is rotated to start the internal combustion engine.

[Problem to be solved by the invention]

In the conventional starter motor with an intermediate gear as described above, the axial engagement between the annular protrusion 29a of the transfer ring 29 and the annular groove 27 of the intermediate gear 26 is limited to a small range on the upper side of the annular groove 27; Therefore, there is a problem in that a moment acts on the intermediate gear 26 due to the moving force, making the axial movement less smooth.

Further, the engagement area between the annular protrusion 29a and the annular groove 27 is small, resulting in a lack of reliability in transmitting moving force, and a problem of high wear and tear and short life.

This invention was made in order to solve this problem, and it is possible to smoothly move the intermediate gear in the axial direction, and
Reduces wear on the engagement part between the movable coupling body and the intermediate gear side,
It is an object of the present invention to obtain a starter motor with an intermediate gear that has a longer life and improved reliability. [Means for solving the problem] The starter motor with an intermediate gear according to the present invention has a clutch outer and an overrunning clutch. The movable coupling body that is interposed between the intermediate gear and the boss portion of the intermediate gear and interlocks the axial movement of both gears is constructed as follows.

In the first aspect, the annular portion is loosely fitted to the outer periphery of the rear end portion of the clutch outer and engaged in the axial direction. The engaging part protruding from the annular part in the radial direction is loosely fitted to the outer part of the boss part of the intermediate gear around at least a half circumference of the circumference, and is engaged in the axial direction. The distal end of the gear is engaged in the axial direction with either the annular part or the boss part of the intermediate gear to apply a moving force.

In claim 2, the movable connecting body is formed by pressing a metal plate.
is forming.

i! In wyK item 3, the movable coupling body is composed of a divided annular body and an engaging body, and the annular body is loosely fitted to the outer periphery of the rear end of the clutch outer and engaged in the axial direction.

This annular body is engaged with the bifurcated tips of the shift lever by an engaging means so that a moving force is applied thereto. The engaging body is loosely fitted to the outer periphery of the rear end of the outer, and the radially extending engaging part of the engaging body is sandwiched and engaged in the axial direction by the stepped part of the clutch actor and the annular body. Loosely insert half of the circumference into the annular groove on the outer periphery of the boss part of the intermediate gear.
They are engaged in the axial direction.

In claim 4, the movable coupling body is composed of a divided annular body and an engaging body, and the annular body is loosely fitted on the outer periphery of the rear end of the clutch outer, and the annular body that is engaged in the axial direction is connected to the shift lever. - A connecting part is protruded in the radial direction from the annular body which is engaged with the two-pronged tip part by an engaging means so that a moving force is applied, and the connecting part is connected in the circular arc shape centered on the fine center of the intermediate gear. A matching groove is provided. The outer circumferential side of a disc-shaped engagement body fixed to the outer circumference of the boss portion of the intermediate gear is inserted into the engagement groove and engaged in the axial direction.

[Effect]

In this invention, in the M requirement l, the engaging portion protruding from the annular portion engages with the outer peripheral portion of the boss portion of the intermediate gear in the axial direction with at least one half of the circumference. In claim 2, the movable coupling moves the intermediate gear smoothly in the axial direction, and increases the axial engagement area between the engaging portion and the intermediate gear, reduces wear, and extends the service life. The body is made of a pressed metal plate and is easily formed.Also, in order to fit the engaging part into the annular groove of the boss part of the intermediate gear, the inner diameter part is widened and inserted, and the inner diameter part is restored to a smaller size. This allows engagement in the axial direction without requiring a retaining ring.

In claim 3, the engaging portion protruding from the engaging body fitted between the annular body fitted on the outer periphery of the rear end of the clutch outer and the stepped portion of the clutch outer is connected to the annular groove of the boss portion of the intermediate gear. It is inserted in and engaged in the axial direction, so you only need to insert it,
Further, in claim 4, an engagement groove is provided in the connecting portion extending from the annular body fitted on the outer periphery of the rear end portion of the clutch outer, and the engagement groove is provided in the connecting portion extending from the annular body fitted on the outer periphery of the rear end portion of the clutch outer. The disc-shaped engagement body is engaged in the engagement groove in the axial direction, and even if the movable coupling body has a simple structure, the intermediate gear can be smoothly moved.

〔Example〕

FIG. 1 is a sectional front view of a main part of a starter motor with an intermediate gear according to an embodiment of the present invention. The figure shows a case where an overrunning clutch is connected to a DC motor via a planetary gear reduction device. In the figure, 31 is a DC TA machine,
An armature rotating shaft 33 extends from the armature 32, and a sun gear 43 made of a pinion is formed on the outer periphery of the front end. 3
5 is a front bracket to which the yoke of the DC motor 31 is connected.

36 is an electromagnetic switch attached to the front bracket 35, and the plunger 3? The other end of the shift lever (-20) is connected to the front end of the shift lever (038), which rotates around an intermediate fulcrum.
040, which is a grommet made of a rubber material that receives the fulcrum part of 0, is a planetary gear reduction gear; A gear 42 is formed.

Reference numeral 44 designates a plurality of planetary gears that mesh with the sun gear 43 and rotate and revolve around the sun. The planetary gear 44 is attached to a support pin 4B fixed to a flange 47 formed on the relay shaft 46.
It is supported via a bearing (not shown). As a result, the relay shaft 46 is rotated at a reduced speed by the planetary gear 44.

The relay shaft 46 has a rear end supported by the internal tooth frame 41 via a bearing 49, and a front end supported by the front bracket 35 via a sleeve bearing 5.
is supported by a helical spline 4 on the outer periphery of the middle part.
61L (see FIG. 2) is formed.

Reference numeral 50 denotes a nine overrunning clutch attached to the relay shaft 46, and is constructed as shown in FIG. 51 is the relay shaft 4
6 is a clutch outer that engages with the helical spline 46a and transmits deceleration rotation; 52 is a clutch inch that transmits rotation in one direction to the clutch outer 51 via rollers 10; movably supported. A pinion 53 is integrally formed at the front end of the clutch inner 52, and is stopped by a stopper 18 when the clutch inner 52 is moved forward. A clutch cover 12 is fixed to the clutch outer 51 via a self-plate 13 by caulking.

As shown in FIG. 2, the front end of the armature rotating shaft 33 is supported in a support hole at the rear end of the relay shaft 46 via a bearing 60.
A steel ball 61 is interposed in the axial direction.Returning to FIG. There is. An intermediate gear 67 is rotatably and movably supported by the support shaft 65 via a sleeve bearing (not shown) fixed to the inner periphery, and is meshed with the pinion 53 to transmit rotation.

6B is the boss portion 67 of the clutch outer 51 and the intermediate gear 67
This is a movable connecting body interposed between A and A, and is made of a synthetic resin material with high mechanical strength and has a 91-order shape. 68
a is loosely fitted to the outer periphery of the rear end of the clutch outer 51;
It is an annular portion that allows the clutch outer 51 to rotate freely, and is engaged in the axial direction by a retaining ring 55, as shown in FIG. As shown in FIG. 1, the engaging portion 6B extends from the annular portion 68a in the radial direction. ) is loosely fitted to the outer periphery of the boss portion 67a of the intermediate gear 67, making it rotatable, and is engaged in the axial direction by a retaining ring 69.

As shown in FIG. 3, a pair of projections 68a are provided on the outer periphery of the annular portion 68a, and are inserted into the engagement holes 20a at the bifurcated tips of the shift lever 2o to connect them to each other.

As the shift lever 20 rotates, the overrunning clutch 5o is moved in the axial direction via the movable coupling body 68, and at the same time, the intermediate gear 67 is moved.
When the engaging portion 681) is fitted into 7a, it can be moved smoothly without any moment acting on it.

The shift lever 20 is rotated counterclockwise by the energization of the electromagnetic switch 36, and the overrunning clutch 50 and the intermediate gear e are moved forward (A
direction), and from this K, the intermediate gear 67 is connected to the ring gear 3.
0. At the same time, the fixed contact of the electromagnetic switch is closed, energizing the circuit of the starting electric motor s31 and the armature 3.
Rotate 21r.

As a result, the armature rotating shaft 330 rotations are decelerated by the planetary gear reduction device 40iC, and the relay shaft 46 is decelerated and rotated.
Overrunning clutch 50. The ring gear 30 is rotated via the intermediate gear 67 to start the internal combustion engine.

FIG. 4 is a side view of a movable coupling body showing a second embodiment of the invention. The movable coupling body 7o differs from the movable coupling body 68 shown in FIG. 3 only in the engaging portion 70b, and the other configurations are the same. The engaging portion 70b is inserted into the outer circumferential portion of the boss portion 67a of the intermediate gear 67, spanning one half of the circumference.
a is rotatable and connected in the axial direction by a retaining ring 69. Note that the boss portion 67a may be provided with an annular portion, and the engaging portion 701) may be inserted into this groove.

This facilitates assembly of the movable coupling body 70 to the engaging portion 781) and the boss portion 67a, and no moment acts on the axial movement of the relay gear 67.

FIG. 5 is a partially sectional front view of an overrunning clutch and an intermediate toothing portion, showing a movable coupling body according to a third embodiment of the present invention. A moving coupling body 71 is interposed between the overrunning clutch 50 and the intermediate gear 67.

As shown in FIGS. 6 and 7, the movable coupling body 71 is formed by pressing a metal plate, including an annular portion 71m and an engaging portion 71b extending radially from the annular portion 71a. ing. The annular portion 71a is provided with a portion γ1C.

As shown in FIG. 8, this movable coupling body 71 has an annular portion 71a loosely fitted to the outer periphery of the rear end portion of the two-piece outer 51.
The clutch outer 51 is rotatable and engaged in the axial direction by a retaining ring 55. An engagement groove 714 is formed between the flange portion 71c and the stepped portion of the two-legged outer member 51, into which the bifurcated tips of the shift lever 20 are inserted and engaged in the axial direction.

Returning to FIG. 5, the engaging portion 71b of the movable coupling body 71 is loosely fitted into the annular groove 67'b of the boss portion 67a of the intermediate gear 67, allowing the boss portion 67a to freely rotate. Therefore, they are engaged in the d direction.

As the shift lever 20 rotates, the overrunning clutch 50 and the intermediate gear 67 are moved in the axial direction via the movable coupling body 71.

FIG. 9 is a front view in section of a main part of a movable coupling body according to a fourth embodiment of the present invention. The outer edge of the inner diameter portion of the engaging portion 711) of the movable coupling body 71 is bent in the axial direction as shown by the chain line to enlarge the inner diameter.

In this state, the engaging part 71b is positioned in the annular groove 67m of the boss part 6a of the intermediate gear 67, and the inner diameter part is cut with a tool.
Press it in the direction of the force, push it into the annular groove 67m) as shown by the solid line, and fit it loosely.

As a result, the engaging portion 711) of the movable coupling body 71 allows the boss portion 67a to rotate freely and engages in the axial direction, so that a retaining ring is not required.

FIG. 10 is a side view of a movable coupling body according to a fifth embodiment of the present invention. The inner diameter part of the engaging part 71b of the movable coupling body 71 is provided with a large number of threads 71e. When the engaging part 71b is pushed into the outer periphery of the boss part 67a of the intermediate gear 67, the inner diameter part is folded. bent and fitted into the annular groove 67b
(See Figure i 9), it is restored to a flat plate shape and is loosely fitted, making the boss portion 69a rotatable and engaging in the axial direction.

In this way, the intermediate gear 67 is engaged in the axial direction without requiring a retaining ring.

11 and 12 are a front view and a side view of a movable coupling body 7 according to a sixth embodiment of the present invention.
The first engaging portion f 1f has a length that is inserted across a half of the annular groove 67b of the boss portion 6 a of the intermediate gear 67,
It does not require a retaining ring and engages in the axial direction.

FIG. 13 is a sectional view of a main part of a starter motor with an intermediate gear according to a seventh embodiment of the present invention. The movable connecting body 72 made of a synthetic resin molded product with high mechanical strength includes an annular portion 72a,
It is formed from a T-heavy part 72b extending radially from this annular part. Similar to the one shown in FIG. 2, the annular portion 72a is loosely fitted to the outer periphery of the rear end of the clutch outer 51, allowing the clutch outer 51 to rotate freely, and the retaining ring 55 is fitted and engaged in the axial direction. .

The engaging portion 72b is loosely fitted into the boss portion 67a of the intermediate gear 67, making the boss portion 67a freely rotatable, and the zero-movement coupling body 72, which is engaged in the axial direction by the retaining ring 69, is shown in a side view in FIG. show.

Returning to FIG. 13, reference numeral 73 denotes a pad that is fitted into the boss portion 67a and applied to the inner end surface of the engaging portion 72b.

An engagement groove 7 is formed between this stopper 73 and the stepped portion of the boss portion 67a.
4 is formed.

The electromagnetic switch 36 is attached to the front bracket 35 at a position on the intermediate gear 67 side. The bifurcated tip of the shift lever 2o, the other end of which is connected to the plunger 37 of the electromagnetic switch 36, is inserted into the engagement groove 74 of the boss and engaged in the axial direction.

When the shift lever 20 is rotated, the intermediate gear 67 is moved in the axial direction, and the balunning clutch 50 is also moved in the same direction via the moving coupling body 72.

FIG. 15 is a sectional view of a main part of a starter motor with an intermediate gear showing an eighth embodiment of the present invention. Reference numeral 75 denotes a movable coupling body, which is constructed as follows. 76 is an annular body made of a synthetic resin material with high mechanical strength, and as in the case of Fig. 2,
It is loosely fitted to the outer circumference of the rear end of the outer 51 and engaged in the axial direction by a retaining ring 55. As shown in FIG. 16, the annular body 76 is provided with a pair of protrusions 76c,
They are inserted into the engagement holes 20a at the fork ends of the shift lever 20, and are connected to each other. 77 is an engaging body made of a metal plate, and is it a fitting hole? ? It is loosely fitted to the outer periphery of the rear end portion of the clutch outer 51 at the position a, and is engaged in the axial direction by the stepped portion of the clutch outer 51 and the annular body flow. The extended end side of the engaging body foot is loosely inserted across half of the circumference of the annular groove 671 of the boss portion 67a of the intermediate gear 67, making the boss portion 67a freely rotatable, and axially engaged.

In this way, the movable connecting body flap 5 is composed of the divided annular body 76 and the engaging body flap 7, and has a simple structure that facilitates assembly.

FIG. 17 is a sectional view of a main part of a starter motor with an intermediate gear showing a ninth embodiment of the present invention, and FIG. 18 is a side view of a moving coupling body. The movable coupling body 78 is composed of an annular body 79 made of a synthetic resin material with high mechanical strength and an engaging body 8o made of a metal plate.

The annular body 79 is attached to the clutch outer 51 as in the case of FIG.
It is loosely fitted to the outer circumference of the rear end and engaged in the axial direction by a retaining ring 55. A pair of protrusions 79 are provided on the annular body 79.
c is provided and inserted into the engagement hole 20a at the bifurcated tip of the shift lever 2° to connect the two. Annular body 7
A connecting portion 79a is protruded from 9 in the radial direction, and a boss portion 67a
An arc-shaped engagement groove 79m) centered on the fine point of is provided. The engaging body 8° has a disc shape, is fitted into the annular groove 671) of the boss portion 67a, and is engaged in the axial direction, and the outer circumferential side is loosely engaged in the engaging groove 79'b in the axial direction. , the engagement area is sufficiently large.

The engagement body 80 is fitted into the annular groove 67b by the same means as in the case of FIG. 9, thereby eliminating the need for a retaining ring.

In addition, although the above embodiment shows the case where the planetary gear reduction device 40 is interposed, it is possible to extend the armature rotating shaft to the front end of the front bracket and omit the planetary gear reduction device as in the conventional device. is also applicable.

Further, in the above embodiment, the movable connecting bodies 68, 70 and the annular bodies 76, 79 are made of synthetic resin, but they may also be made of a metal material having high mechanical strength and a small coefficient of friction.

〔Effect of the invention〕

As described above, according to the present invention, in claim 1, a movable coupling body is interposed between the outer periphery of the rear end of the clutch outer of the overrunning clutch and the boss portion of the intermediate gear, and the rotation of the shift lever is The overrunning clutch and intermediate gear are interlocked to move in the axial direction, and the annular part of the movable coupling body is loosely fitted to the outer periphery of the rear end of the clutch outer, connected in the axial direction, and protruded from the annular part in the radial direction. The engaged portion is loosely fitted into the outer periphery or the annular groove of the boss portion of the intermediate gear on the entire circumference or half thereof, and is engaged in the axial direction, so that the intermediate gear can be smoothly moved in the axial direction. The wear of the engaging portion of the movable coupling body with the intermediate gear side is small, the lifespan is long, and reliability is improved.

In claim 2, since the moving coupling body is formed by pressing a metal plate, it is easy to manufacture, and in order to fit the engaging part into the annular groove of the boss part of the intermediate gear, it is necessary to widen the inner diameter part. By inserting it and restoring the inner diameter to a small size, axial engagement is possible without the need for a retaining ring.

In claim 3, the movable coupling body is divided into an annular body and an engaging body, and the annular body is fitted on the outer periphery of the rear end of the clutch outer;
The structure is simple because the engaging body is fitted between the stepped part of the clutch outer, and the engaging part that comes out of the engaging body is inserted radially into the annular groove of the boss part of the intermediate gear and engaged in the axial direction. It is easy to assemble and does not require a retaining ring.

Further, in claim 4, the movable connecting body is divided into an annular portion and an engaging body, and the annular body is engaged with the outer periphery of the rear end portion of the clutch outer in the axial direction, and is engaged with the connecting portion extending from the annular body. A matching groove is provided, and a disc-shaped engaging body is fitted onto the outer periphery of the boss portion of the intermediate gear.
Since the outer circumferential side of the engaging body is inserted into the engaging groove and engaged in the axial direction, the structure is simplified and assembly is facilitated.

[Brief explanation of the drawing]

FIG. 1 is a front view showing a main part of a starting motor with an intermediate gear according to a first embodiment of the present invention, and FIG. 2 is a cross-sectional view showing how the movable coupling body shown in FIG. , FIG. 3 is a side view of the movable coupling body of FIG. 1, FIG. 4 is a side view of the movable coupling body showing a second embodiment of the present invention, and FIG. 5 is a side view of the movable coupling body of the second embodiment of the present invention. 6 and 7 are front and side views of the movable coupling body of FIG. 5, and FIG. FIG. 5 is a sectional view showing the attachment of the movable coupling body to the clutch outer; FIG. 9 is a partial view of the movable coupling body fitting into the annular groove of the intermediate gear boss portion showing the fourth embodiment of the present invention. Cross-sectional front view, No. 10
11 and 12 are front and side views of a movable coupling body showing a sixth embodiment of the invention, and FIG. 13 is a side view of a movable coupling body showing a fifth embodiment of the invention. FIG. 14 is a side view of the movable coupling body of FIG. 13, and FIG. FIG. 16 is a side view of the movable coupling body shown in FIG. 15, and FIG. 17 is a front view of the main parts of a starter motor with an intermediate gear showing a ninth embodiment of the present invention. 18 is a side view of the movable coupling body shown in FIG. 17; FIG. 19 is a partially sectional front view of a conventional starting motor with intermediate gear; FIG. 20 20 is a side view showing the engagement of the intermediate gear of the transfer ring of FIG. 19 with the annular groove; FIG. 20...Shift lever 30...Ring gear, 31...
...Electric motor (DC motor), 33... Armature rotating shaft,
36... Electromagnetic switch, 40... Planetary gear reduction device,
50... Overrunning clutch, 51... Clutch outer, 53... Binion, 55... Retaining ring,
65...Support shaft, 67...Intermediate gear, 67a...
Boss portion, 67b... annular groove, 68, 70-72, 7
5, 78... moving connector, 68a, 71a
.

Claims (4)

[Claims] (1) An electric motor having an armature rotating shaft, in which the rotation of the rotating shaft is transmitted directly or through a deceleration means to rotate a pinion at the front end in one direction, and the rotation of the shift lever by an electromagnetic switch is transmitted. The overrunning clutch is rotatably and axially movably supported by a support shaft disposed parallel to the axis of the rotary shaft, is engaged with the pinion, and is moved forward to drive the internal combustion engine. In a starter motor with an intermediate gear that meshes with a ring gear, the overrunning clutch has an annular portion that is loosely fitted to the outer periphery of the rear end of the clutch outer and is engaged in the axial direction, and an annular portion that is engaged in the axial direction. a movable coupling body that is protruded from the side, is loosely fitted over at least a semicircumference to the outer periphery of the boss portion of the intermediate gear, and is engaged in the axial direction; A starter motor with an intermediate gear, wherein the overrunning clutch and the intermediate gear are moved in the axial direction in conjunction with each other via the movable coupling body by transmitting axial rotation to the hub portion of the intermediate gear. (2) The electric motor with an intermediate gear according to claim 1, wherein the movable coupling body is made of a pressed metal material. (3) An annular shape that is loosely fitted to the outer periphery of the rear end of the clutch outer, is engaged in the axial direction, and is engaged by the engaging means with the bifurcated tip of the shift lever at the outer periphery to apply a moving force. It is loosely fitted between a stepped part on the outer periphery of the rear end of the clutch outer and the annular body, and is engaged in the axial direction, with the engaging part extending in the radial direction being an intermediate part. Insert semi-circumferentially into the annular groove on the outer periphery of the boss part of the gear.
2. The starter motor with an intermediate gear according to claim 1, further comprising a movable coupling body comprising an engaging body engaged in the axial direction. (4) It is loosely fitted on the outer periphery of the rear end of the clutch outer and is engaged in the axial direction, with an arc-shaped engagement groove centered on the axis of the intermediate gear in the radially extending connecting part. a movable coupling body comprising an annular body provided thereon and an engagement body having a disc shape and fixed to the outer periphery of the boss portion of the intermediate gear, the outer circumferential side of which enters the engagement groove and engages in the axial direction. A starter motor with an intermediate gear according to claim 1.