JPH04118833U - Electric remote control door mirror drive unit - Google Patents

Abstract

(57) [Summary] [Purpose] To make a drive unit used for an electric remote control door mirror completely waterproof and to facilitate assembly. [Structure] A concave circumferential groove 17 is provided on the outer periphery of the main body case 6. On the other hand, a protruding circumferential wall 18 that loosely fits into the concave circumferential groove 17 is provided on the outer circumference of the lid case 7. Then, the concave circumferential groove 1
7 is filled with a liquid resin 19 that hardens over time, and then the projecting peripheral wall 18 of the lid case 7 is fitted into the concave peripheral groove 17.

Description

[Detailed explanation of the idea]

0001

[Industrial application field]

The present invention relates to a drive unit used in an electric remote control door mirror, and in particular, This relates to its waterproof structure.

0002

[Conventional technology]

The drive unit that tilts the mirror body of an electric remote control door mirror is A main body case that houses the moving motor and movable pivot, and a lid case that covers the main body case. However, door mirrors are attached to the outside of the vehicle. Therefore, a seal is placed between the main case and the lid case to prevent water from entering the drive unit. There is a need to. Conventionally, this waterproof structure has been disclosed, for example, in Japanese Utility Model Application Publication No. 59-12743. An annular groove is formed in the main body case so that the Generally, the lid case is fixed to the main body case.

0003

[Problem that the idea aims to solve]

However, in the structure that uses an O-ring as in the past, the installation process of the O-ring is The process itself is complicated, and if the O-ring is not properly installed, the main body case and lid may be damaged. If the O-ring gets caught between the case and the case, it will no longer perform its waterproof function. There are some problems. In addition, in order to obtain the appropriate tightness of the O-ring, considerable dimensional accuracy is required. The problem is that it requires In view of the above-mentioned problems in the conventional technology, the present invention eliminates the O-ring. In addition to waterproofing with potting agent, it also makes it easier to assemble the drive unit. The purpose is to

0004

[Means to solve the problem]

For this reason, the present invention consists of a main body case and a lid case, with a tilting mirror inside. In a drive unit for an electric remote control door mirror that accommodates a drive member to The main body case has a concave circumferential groove on its outer periphery, while the lid case has a concave circumferential groove on its outer periphery. It has a protruding circumferential wall that loosely fits into the circumferential groove, the concave circumferential groove is filled with a potting agent, and the pot is filled with a potting agent. The lid case is joined to the main case with the protruding peripheral wall immersed in the coating agent. It was designed to allow

[0005]

【Example】

Hereinafter, embodiments of the present invention will be described based on the drawings. Figure 1 is a partially cutaway plan view of the drive unit case, and Figure 2 is a cross section taken along line A-A in Figure 1. Figures 3 and 3 are explanatory diagrams for assembling the main body case and lid case, and Figure 4 shows the drive unit case. An exploded perspective view showing the assembled state, FIG. 5 is a longitudinal sectional view of the electric remote control door mirror, FIG. 6 is a cross-sectional view thereof.

[0006] As shown in FIGS. 4 to 6, the mirror 1 is held by a mirror holder 2. The mirror holder 2 is placed in front of the bracket 5 fixed to the mirror visor 3. A state where it can be tilted around the horizontal axis X and vertical axis Y by the ball pivot 4 protruding from the surface. It is supported by

[0007] As shown in FIGS. 1, 2, 4, 5, and 6, the mirror holder 2 is Drive unit case housing the drive mechanism for tilting around the X and vertical axes Y 16 is composed of a main body case 6 and a lid case 7 that functions as a lid. Inside the drive unit case 16 are a pair of drive motors 8a, 8b and the main body case. It is pivoted at both ends by the case 6 and the lid case 7, and is rotated by the drive motors 8a and 8b. drive gears 9a, 9b, and shaft holes 1 formed in the rotating shafts of the drive gears 9a, 9b. 0a, 10b (10b is not shown) and is non-rotatably and slidably inserted into the movable pivots 15a, 15b are provided. In addition, the lid case 7 , through-holes 12a, 12 to allow the movable pivots 15a, 15b to protrude outward. b are perforated in each case. A clutch sprocket is provided above the through-holes 12a and 12b. Ring holding parts 13a, 13b are provided protrudingly, and are attached to movable pivots 15a, 15b. A substantially U-shaped clutch spring that engages with threaded grooves 14a and 14b 11a and 11b are fitted from the lateral direction.

[0008] As shown in FIGS. 2 and 3, the outer circumferential portion of the main body case 6 includes an outer circumferential wall 17a and an inner circumferential wall 17a. A concave circumferential groove 17 formed by the circumferential wall 17b is provided. On the other hand, the lid case The outer periphery of the base 7 is provided with a protruding circumference so as to fit into the concave circumferential groove 17 with some play. A wall 18 is provided. Then, in the concave circumferential groove 17 of the main body case 6, Fill the liquid resin 19 that hardens with heating, and then insert the lid case into the concave circumferential groove 17. When the projecting peripheral wall 18 of No. 7 is fitted, the resin 19 hardens over time. Then, the joint between the main case 6 and the lid case 7 is completely sealed. in this way, Fill the concave circumferential groove 17 of the main body case 6 with liquid resin 19 and attach the lid case 7 to the main body case. It completely seals the joint between the main case 6 and the lid case 7 by simply placing it over the case 6. There is no need for the complicated work of installing an O-ring as in the past. As a result, assembly of the drive unit case 16 becomes very easy. Here, the said The concave circumferential groove 17 has an inner circumferential wall 17b higher than an outer circumferential wall 17a. As a result, when the projecting peripheral wall 18 is fitted into the concave peripheral groove 17, the liquid resin 19 does not overflow into the main body case 16, so the The resin 19 will not harden and impair the functions of the drive gears 9a, 9b, etc.

[0009] As shown in FIGS. 2, 4, and 5, the bracket 5 has a pair of square windows 19a, 1 9b is bored, and the drive unit case 16 is screwed onto the back of the bracket 5. When fixing with screws, move the movable pivots 15a, 15b to the square windows 19a, 19. b. In addition, the through holes 12a, 12b and the movable pivot In order to prevent water from entering through the gaps between the clutch spring and the clutch springs 15a and 15b, Cap-shaped boots 20a, 20b are attached to cover the entire circumference of the ring holding parts 13a, 13b. The tips of the boots 20a, 20b are movable pivots 15a, 15b. It is firmly locked in a boot locking groove (not shown) at the tip. On the other hand, the block The lower peripheral edges of the parts 20a and 20b connect the drive unit case 15 to the bracket. When fixing the boots 20a and 20b to the back of the boot 5 with screws, the lower peripheral edges of the boots 20a and 20b should be By clamping between the top surface of the storage case 7 and the back surface of the bracket 5, the crack can be removed. It is firmly attached around the spring holding parts 13a and 13b.

0010 As shown in FIGS. 5 and 6, the movable pivots 15a and 15b on the horizontal axis X and vertical axis Y passing through the spherical pivot 4 supported on the ruler By moving the movable pivots 15a and 15b back and forth, the mi The mirror 1 held in the mirror holder 2 can be tilted back and forth and left and right. It is being done.

[0011]

[Effect of the idea]

With the above configuration, the present invention has a pottery in the concave circumferential groove of the main body case. Simply fill the lid case with the sealing agent and cover the main case, and the main case and lid case will be separated. 7 can be completely sealed, so there is no need to install an O-ring like in the past. As a result, assembly of the drive unit is extremely easy. It has an excellent effect. Further, the concave circumferential groove is formed so that the inner wall is higher than the outer wall. By forming the protruding circumferential wall into the concave circumferential groove, the pot Since the cleaning agent will not overflow into the main body case, the drive gear inside the drive unit will This has the effect of not impairing the functions of other devices.

[Brief explanation of drawings]

FIG. 1 is a partially cutaway plan view of a drive unit case.

FIG. 2 is a sectional view taken along line AA in FIG. 1;

FIG. 3 is an explanatory diagram of the assembly of the main body case and the lid case.

FIG. 4 is an exploded perspective view showing the assembled state of the drive unit case.

FIG. 5 is a longitudinal sectional view of the electric remote control door mirror.

FIG. 6 is a cross-sectional view of the electric remote control door mirror. 1 mirror 6 Main body case 7 Lid case 8a Drive motor 8b Drive motor 9a Drive gear 9b Drive gear 11a Clutch spring 11b Clutch spring 15a Movable pivot 15b Movable pivot 16 Drive unit case 17 Concave circumferential groove 17a Outer wall 17b Inner peripheral wall 18 Projected peripheral wall 19 Resin

Claims (2)

[Scope of utility model registration request] 1. A drive unit for an electric remote control door mirror, which is composed of a main body case and a lid case, and houses a drive member for tilting the mirror therein, wherein the main body case has a concave circumferential groove on its outer periphery; The lid case has a projecting peripheral wall that fits loosely into the concave peripheral groove, and the concave peripheral groove is filled with a potting agent, and the lid case is joined to the main case with the projecting peripheral wall immersed in the potting agent. A drive unit for an electric remote control door mirror. 2. The drive unit for an electric remote control door mirror according to claim 1, wherein the inner wall of the concave circumferential groove is formed higher than the outer wall.