JP2008206379A - Terminal cover - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a terminal cover capable of preventing a connection between a power supply terminal and a lead wire from being rusted with moisture by surely draining the moisture even if the moisture flows down along the lead wire from the outside and intrudes thereinto. <P>SOLUTION: The terminal cover is mounted on a starter motor 2 in tight contact therewith, having a starter gear 3 in parallel with a horizontally mounted crankshaft of an engine, and is composed of a cover body 24 to cover the connection 28 between the power supply terminal 26 provided in the starter motor 2, and the lead wire 27 connected to the power supply terminal 26. The cover body 24 is composed of an upper surface part 22 and side surface parts 23. An upper surface through hole 32 is formed at the top end section protruding outside of the upper surface part 22 or at a corner part with the side surface part 23, and in each of both left and right faces with respect to the axial direction of the starter gear 3, side surface through holes 33 are formed at the top end section protruding outside of the side surface parts 23 or the surface orthogonal to the starter gear 3. The side surface through holes 33 are formed adjacent to the outer periphery of the starter motor 2 of the side surface parts 23. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a terminal cover that covers a connecting portion of a power feeding terminal to a starter motor of a saddle-ride vehicle.

  When starting the engine of the saddle riding vehicle by the cell starter, electric power is supplied from the starter relay to the starter motor, and the crankshaft is rotated by the rotation of the starter motor. Supply of power to the starter motor is performed by connecting a power supply terminal provided in the starter motor and a lead wire from the cell starter.

  Depending on the type of saddle riding vehicle, this starter motor may be exposed from the vehicle body. In this case, the connection portion between the power supply terminal and the lead wire may be rusted by moisture such as rain, which may hinder power supply to the starter motor. In order to prevent this, a terminal cover is put on the connection portion.

  A terminal cover to be attached to a motor is described in Patent Document 1. This terminal cover covers the lead wire provided in the motor and the connecting terminal portion between the external electric wires and waterproofs them.

JP 2005-318742 A

  However, when the terminal cover of Patent Document 1 is applied to the starter motor exposed from the body of the saddle vehicle, rainwater enters from the side where the lead wire as the external electric wire is drawn and there is no means for draining the terminal. Water accumulates in the cover. Therefore, it is not possible to prevent the connection terminal portion from rusting. In particular, in a saddle-ride vehicle, a horizontal crankshaft and a starter gear are parallel, and a starter motor is disposed on a concentric circle with the crankshaft as an axis. Moisture that penetrates through the wire is not drained to the outside again from the lead wire inlet.

  This invention is based on the above prior art, and even if water enters through the lead wire from the outside, it drains reliably and prevents the connection part between the power supply terminal and the lead wire from being rusted by water. An object of the present invention is to provide a terminal cover that can be used.

  In order to achieve the above object, according to the first aspect of the present invention, a power supply terminal provided in close contact with and attached to a starter motor having a starter gear parallel to a crankshaft of a horizontally mounted engine, and the power supply terminal The cover body covers a connection portion with a lead wire to be connected, and the cover body is composed of an upper surface portion and a side surface portion, and is formed at a corner portion of the upper surface portion, the tip portion protruding outward or the side surface portion. An upper surface through hole is formed, and a side surface through hole is formed in a tip portion protruding outward or a surface orthogonal to the starter gear on each of the left and right sides of the side surface portion with respect to the axial direction of the starter gear. The through hole is formed in the vicinity of the outer periphery of the starter motor on the side surface portion.

  According to a second aspect of the present invention, in the first aspect of the present invention, the lead wire is inserted into the upper surface through hole or the side surface through hole.

  The invention of claim 3 is characterized in that, in the invention of claim 1 or 2, the upper surface portion has a spherical shape.

  According to a fourth aspect of the present invention, in any one of the first to third aspects, the side surface portion has a cylindrical shape.

  According to the first aspect of the present invention, the cover main body includes an upper surface portion and a side surface portion, and an upper surface through hole is formed at a corner portion of the tip portion or the side surface portion that protrudes outside the upper surface portion, and the starter gear of the side surface portion is formed. In each of both surfaces sandwiching the side surface, a side through hole is formed in a tip portion protruding outward or a surface orthogonal to the starter gear, and the side surface through hole is formed on the side of the starter motor. On the other hand, as described above, the starter motor of the saddle-riding vehicle is disposed on a concentric circle with the crankshaft as an axis, with the horizontal crankshaft and the starter gear parallel.

  In this case, no matter where the starter motor is disposed, either or both of the upper surface through hole and the side surface through hole are located on the lower side of the cover body, and this is the drain hole. For this reason, even if the lead wire from the outside is connected and moisture enters the cover body, the water can surely be drained from the lower through hole, and the terminal can be prevented from being rusted by moisture. In addition, either or both of the other upper surface through-holes and side surface through-holes are located on the upper side of the cover main body, and this is an air hole. For this reason, drainage can be further ensured and rapid drainage can be performed. In addition, since the side through hole is formed on the side of the starter motor side, that is, on the lower side when the upper surface portion is on the upper side, even if the starter motor is mounted on the upper side in the vertical direction with respect to the crankshaft The water can be reliably drained from the hole.

  According to the invention of claim 2, since the lead wire is inserted into the upper surface through hole or the side surface through hole, it is not necessary to separately process the through hole for introducing the lead wire from the outside into the cover body. . Moreover, drainage can be reliably performed from the upper surface through hole or the side surface through hole through the lead wire.

  According to the invention of claim 3, since the upper surface portion has a spherical shape, the upper surface through hole is formed at the top portion of the spherical shape. Accordingly, even when the starter motor is attached to the lower side in the vertical direction with respect to the crankshaft, the water accumulated in the upper surface portion of the cover body can be efficiently and reliably drained from the upper surface through hole.

  According to the fourth aspect of the present invention, since the side surface portion has a cylindrical shape, the side surface through-holes are formed at the most bulged portions of the left and right surfaces of the side surface portion. Therefore, even when the starter motor is mounted in the horizontal direction with respect to the crankshaft, the water accumulated in the side surface portion of the cover main body can be efficiently and reliably drained from one of the side surface through holes.

  The present invention is attached in close contact with a starter motor having a starter gear parallel to a horizontally mounted crankshaft of an engine, and has a connection portion between a power supply terminal provided in the starter motor and a lead wire connected to the power supply terminal. The cover body is composed of an upper surface portion and a side surface portion, and an upper surface through hole is formed at a corner portion of the tip portion or the side surface portion that protrudes outward from the upper surface portion. In each of the left and right sides with respect to the axial direction of the starter gear, a side surface through hole is formed in a tip portion projecting outward or a surface orthogonal to the starter gear, and the side surface through hole is the starter motor of the side surface portion. Even if moisture enters the cover body by connecting the lead wire from the outside, the terminal is rusted by moisture. A terminal cover which can prevent the stick.

  FIG. 1 is a schematic view showing a positional relationship with a crankshaft of a motor provided with a terminal cover according to the present invention. 2A is a schematic view of the terminal cover according to the present invention attached to the starter motor, and FIG. 2B is a sectional view of the vicinity of the terminal cover.

  As shown in FIG. 1, the starter motor 2 is fixed to the body frames 1 and 19. The starter motor 2 is provided with a starter gear 3. The starter gear 3 is disposed so as to be parallel to the crankshaft 5. Therefore, the starter motor 2 is also mounted in parallel with the crankshaft 5.

  The starter gear 3 of the starter motor 2 meshes with a reduction gear 6 provided on the crankshaft 5 side via a reduction gear 4. A one-way clutch 7 is connected to the reduction gear 6. The one-way clutch 7 is connected to a connecting wheel 9 via a bolt 8. The connecting foil 9 is fixed to the rotor outer cylinder 11 of the generator by bolts or rivets 10. The rotor outer cylinder 11 holds a magnet 12 inside thereof. A stator 13 is fixed to the body frame 1 with bolts 14 so as to face the magnet 12. The stator 13 includes a coil 15 and a core 16.

  The connecting wheel 9 is fixed to the crankshaft 5 by fitting the key 17. The crankshaft 5 is rotatably mounted on the vehicle body frame 19 via a bearing 18. The body frames 1 and 19 are integrated by bolts 20.

  In such a mechanism, the rotation of the starter motor 2 is transmitted from the starter gear 3 to the reduction gears 4 and 6, and the connecting wheel 9 is rotated via the one-way clutch 7. As a result, rotation of the crankshaft 5 starts, the engine (not shown) is started, and the crankshaft 5 rotates at a higher speed than the starter motor 2. In this state, the rotation of the crankshaft 5 is not transmitted to the starter gear 3 of the starter motor 2 by the action of the one-way clutch 7.

  The terminal cover 21 according to the present invention is attached to the starter motor 2 described above. The terminal cover 21 includes a cover body 24 having an upper surface portion 22 and a side surface portion 23. A terminal member 25 is provided on the outer periphery of the starter motor 2, and a power supply terminal 26 is provided so as to protrude outward. A connection portion 28 between the power supply terminal 26 and the terminal 36 in the lead wire 27 from the outside is covered with the cover body 24. At this time, an annular protrusion 34 that protrudes inward is formed at the lower end of the side surface part 23, and this is inserted under the outer peripheral protrusion 35 that protrudes outward from the upper end of the terminal member 25. Is included. Therefore, the cover body 24 is attached in close contact with the surface of the starter motor 2.

  The electric power supplied from the lead wire 27 is transmitted from the lower terminal 29 of the terminal member 25 through the lead wire 30 and used as the rotational power of the starter motor 2. The lead wire 27 is inserted from a lead wire lead-in part 31 formed in the cover body 24.

  An upper surface through hole 32 is formed in the upper surface portion 22 of the cover body 24, and a side surface through hole 33 is formed in the side surface portion 23. The side surface through-hole 33 is formed on the surface of the side surface portion 23 with the starter gear 3 interposed therebetween, on the surface that protrudes outward or on the surface orthogonal to the starter gear 3. When the side surface portion 23 as shown in the figure has a cylindrical shape, a portion protruding outward and a surface orthogonal to the starter gear 3 coincide with each other, and a portion bulging (projecting) most in the left-right direction across the starter gear 3 Become. Further, the side surface through-hole 33 is formed on the side part 23 on the starter motor 2 side, that is, on the lower side. The lower side is a position above the outer peripheral projection 35 described above when the cover main body 24 is attached to the starter motor 2. The upper surface through-hole 32 is formed at a corner that is convex to the outside of the upper surface portion 22 or the side surface portion 23. When the upper surface portion 22 has a spherical shape as shown in the figure, there is no corner between the upper surface portion 22 and the side surface portion 23, so the upper surface through hole 32 is a portion that protrudes outside the upper surface portion 22, that is, Formed on top of spherical shape.

  FIG. 3 is a schematic cross-sectional view of a starter motor for explaining a drainage mechanism using a terminal cover according to the present invention. In the drawing, the internal structure of the starter motor 2 is omitted.

  The starter motor 2 of the saddle riding vehicle is disposed on a concentric circle with the crankshaft 5 as an axis, with a horizontal crankshaft 5 (see FIG. 1) and the starter gear 3 in parallel. Therefore, the angle of the terminal cover 21 with respect to the horizontal axis varies depending on the position where the starter motor 2 is disposed. FIG. 4A shows a state in which the starter motor 2 is mounted vertically upward with respect to the crankshaft 5, FIG. 6B shows a state in which the starter motor 2 is mounted in the horizontal direction with respect to the crankshaft 5, and FIG. The state attached to the shaft 5 in the vertically downward direction is shown. Regardless of the position at which it is attached, moisture such as rainwater enters from the opening of the lead wire lead-in portion 31 through the lead wire 27.

  In the case of (A), when moisture enters the cover main body 24, the left and right side surface through holes 33 are provided below the side surface portion 23, so that the water is efficiently drained from here. At this time, the upper surface through hole 32 serves as an air hole.

  In the case of (B), when moisture enters the cover body 24, the water is drained from the lower side through-hole 33 a among the left and right side through-holes 33. As described above, the lower side surface through-hole 33a is provided at the most projecting position of the side surface portion 23. Therefore, the side surface through hole 33a is provided at the lowermost end of the side surface portion 23 and accumulated in the cover body 24. Water can be drained reliably. At this time, the upper surface through hole 32 and the upper side surface through hole 33b serve as air holes.

  In the case of (C), when water enters the cover main body 24, the water is efficiently drained from the upper through hole 32 formed at the top of the spherical shape. That is, the upper surface through hole 32 is provided at the lowermost end of the upper surface portion 22. At this time, the left and right side surface through holes 33 serve as air holes.

  Therefore, no matter where the starter motor 2 is disposed with respect to the crankshaft 5, the upper surface through-hole 32 or the side surface through-hole 33 becomes a water drainage hole. Even if moisture enters the main body 24, it is possible to reliably drain and prevent the power supply terminal 26 and the terminal 36 from being rusted by moisture. Moreover, the other upper surface through-hole 32 or side surface through-hole 33 which is not used as a drain hole becomes an air hole, can further ensure drainage, and enable rapid drainage. Such a terminal cover 21 according to the present invention can provide a reliable drainage effect simply by covering the connection terminal portion of the starter motor 2, and is particularly a saddle ride where the periphery of the starter motor 2 is not covered by the vehicle body cover. It can be suitably used for both. In addition, since the upper surface through-hole 32 and the side surface through-hole 33 are small holes, moisture does not enter from here due to the surface tension. Even if it penetrates, it is a small amount. Therefore, as described above, a large amount of moisture enters from the lead wire lead-in portion 31.

  4A and 4B are schematic views of another terminal cover according to the present invention, in which FIG. 4A is a plan view, FIG. 4B is a side view as viewed from the AA direction of FIG. It is BB sectional drawing. In addition, the left-right direction of a figure is parallel to a crankshaft.

  As shown in the drawing, in this example, the lead wire lead-in portion 31 is formed to be inclined by 45 ° in a direction parallel to the crankshaft 5 (see FIG. 2). That is, the lead wire lead-in portion 31 is formed between the upper surface portion 22 and the side surface portion 23. Thus, even if the lead-in direction of the lead wire differs depending on the vehicle type, structure, etc., a reliable drainage effect can be obtained by providing the upper surface through hole 32 and the side surface through hole 33 at the positions described above. Other configurations, operations, and effects are the same as those in FIGS.

  5A and 5B are schematic views of still another terminal cover according to the present invention, in which FIG. 5A is a plan view, FIG. 5B is a side view seen from the AA direction of FIG. It is BB sectional drawing of.

  As shown in the figure, in this example, the lead wire lead-in portion 31 is formed by projecting from the side surface portion 23 of the cover body 24 and further bending from there. Even in such a case, a reliable drainage effect can be obtained by providing the upper surface through hole 32 and the side surface through hole 33 at the positions described above. Other configurations, operations, and effects are the same as those in FIGS.

  6A and 6B are schematic views of still another terminal cover according to the present invention, in which FIG. 6A is a plan view, FIG. 6B is a side view as viewed from the direction AA of FIG. It is BB sectional drawing of.

  As shown in the drawing, in this example, the lead wire lead-in portion 31 is provided in the upward direction, that is, the upper surface portion 22. Furthermore, in this example, the upper surface through hole 32 is used together with the opening of the lead wire lead-in portion 31. Even with such a configuration, moisture can be drained from the upper surface through-hole 32 by connecting the lead wires. Further, it is not necessary to separately process the upper surface through hole 32, and the productivity of the terminal cover 21 is improved.

  FIG. 7 is a sectional view showing another example of the terminal cover according to the present invention. (A)-(C) are the longitudinal cross-sectional views of the cover main body 24, (D)-(F) is a cross-sectional view of the cover main body 24. FIG.

  When the upper surface portion 22 has a cross-sectional wave shape as shown in (A), the upper surface through-holes 32 are formed in all of the tip portions protruding outward, that is, the bulged portions (two locations in the figure). When the upper surface portion 22 has a planar shape as shown in (B), there is no tip portion that protrudes outward, and the upper surface through-hole 32 is formed at a corner portion that is a boundary with the side surface portion 23. When the upper surface portion 22 has a shape protruding at an acute angle as shown in (C), the upper surface through-hole 32 is formed at the corner portion between the tip portion and the side surface portion 23 that protrude outward.

  When the side surface portion 23 has a cross-sectional wave shape as in (D), the tip portion protruding outward and the surface orthogonal to the starter gear 3 coincide with each other at the tip portion where the side surface portion 23 bulges. The side surface through-holes 33 are formed in all of the bulged portions (two locations for each of the left and right side surface portions 23 in the figure). When the side surface portion 23 has a planar shape as in (E), there is no tip portion protruding outward, and the surface orthogonal to the starter gear 3 is the side surface portion 23 itself. Accordingly, the side surface through hole 33 is formed at an arbitrary position of the side surface portion 23. In this case, it is preferable that there is one central position as shown. However, as described above, it is necessary to be formed below the side surface portion 23. As in (F), when the side surface portion 23 has a shape protruding at an acute angle, the tip portion protruding outward is a protruding portion, and the side through-hole 33 is formed here.

  For example, if the mounting angle of the starter motor 2 is known in advance, these through holes 32 and 33 are either the upper surface through hole 32 or the side surface through hole 33 on the lower side when mounted, and either of them is air What is necessary is just to form the minimum number in the position which becomes a hole. On the contrary, the upper surface through-holes are formed in the corner portions of the tip portion and the side surface portion 23 that protrude outward from the upper surface portion 22, and all the portions orthogonal to the starter gear 3 and the tip portion that protrudes outward from the side surface portion 23. If the 32 and the side surface through-hole 33 are provided, a highly versatile terminal cover that can be applied to any mounting angle of the starter motor 2 can be obtained.

It is the schematic which shows the positional relationship with the crankshaft of the motor provided with the terminal cover which concerns on this invention. (A) is the schematic of the state which attached the terminal cover which concerns on this invention to the starter motor, (B) is sectional drawing of the terminal cover vicinity. It is a schematic sectional drawing of the starter motor for demonstrating the drainage mechanism by the terminal cover which concerns on this invention. It is the schematic of another terminal cover which concerns on this invention, (A) is a top view, (B) is the side view seen from the AA direction of (A), (C) is BB of (A). It is sectional drawing. It is the schematic of another terminal cover concerning this invention, (A) is a top view, (B) is the side view seen from the AA direction of (A), (C) is B- of (A). It is B sectional drawing. It is the schematic of another terminal cover concerning this invention, (A) is a top view, (B) is the side view seen from the AA direction of (A), (C) is B- of (A). It is B sectional drawing. It is sectional drawing which shows the other example of the terminal cover which concerns on this invention.

Explanation of symbols

1: body frame, 2: starter motor, 3: starter gear, 4: reduction gear, 5: crankshaft, 6: reduction gear, 7: one-way clutch, 8: bolt, 9: connecting wheel, 10: rivet, 11: rotor Outer cylinder, 12: magnet, 13: stator, 14: bolt, 15: coil, 16: core, 17: key, 18: bearing, 19: body frame, 20: bolt, 21: terminal cover, 22: upper surface, 23: side part, 24: cover body, 25: terminal member, 26: power supply terminal, 27: lead wire, 28: connection part, 29: terminal, 30: lead wire, 31: lead wire lead-in part, 32: top surface penetration Hole: 33: Side surface through hole, 34: Ring-shaped protrusion, 35: Outer peripheral protrusion, 36: Terminal

Claims (4)

Installed in close contact with a starter motor having a starter gear parallel to the crankshaft of the engine mounted horizontally,
It consists of a cover body that covers the connection between the power supply terminal provided in the starter motor and the lead wire connected to the power supply terminal,
The cover body is composed of an upper surface portion and a side surface portion,
An upper surface through hole is formed at a corner of the upper surface portion, the tip portion protruding outward or the side surface portion,
In each of the left and right sides of the side portion with respect to the axial direction of the starter gear, a side through-hole is formed in a tip portion protruding outward or a surface orthogonal to the starter gear,
The terminal cover is characterized in that the side surface through hole is formed in the vicinity of the outer periphery of the starter motor in the side surface portion.   The terminal cover according to claim 1, wherein the lead wire is inserted into the upper surface through hole or the side surface through hole.   The terminal cover according to claim 1, wherein the upper surface portion has a spherical shape.   The terminal cover according to claim 1, wherein the side portion has a cylindrical shape.

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