JP4468574B2 - Door mirror device with storage mechanism - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a door mirror device with a storage mechanism, and in particular, a storage device formed by an electric motor, a worm gear mechanism, or the like is integrated into a unit so that the entire assembly (assembly) workability is achieved. In addition, the present invention relates to a door mirror device with a storage mechanism in which many parts can be shared (shared) in an electrically retractable door mirror device and a manually retractable door mirror device.
[0002]
[Prior art]
A conventional door mirror device with a retracting mechanism, in particular, an electrically retractable door mirror device, for example, as shown in FIG. 5, is retracted on a base shaft 10 attached to the door side and a base portion 120 of the base shaft 10. Is mounted in such a manner that a ball 40 or the like forming a portion is interposed therebetween and is capable of relative rotational movement with respect to the shaft portion 110, and is integrated with a mirror housing 20 to which a mirror or the like is attached. , A drive unit 50 that is installed in the holder 30 and includes an electric motor 510, a worm mechanism 520, a gear mechanism 550, and the like, and a gear mechanism 550 that forms the drive unit 50. A ring gear (sun gear) 70 that engages with the shaft portion 110 of the base shaft 10, and The clutch member 60, which is provided in the inner gear 70 and is mounted so as not to be capable of relative rotational movement with respect to the shaft portion 110, and the sun gear 70 to the clutch member 60 side and the bottom surface portion side of the holder 30 And a circlip 90 that positions and fixes the spring 80 in the axial direction of the shaft portion 110. By adopting such a configuration, in the conventional system, when the electric motor 510 starts to operate, the worm mechanism 520 and the gear mechanism 550 rotate, and the driving device 50 having the above configuration causes the sun gear 70 to move. It will rotate around. As a result, the holder 30 itself and the mirror housing 20 accommodated in the driving device 50 rotate around the shaft portion 110, and the storing operation of the door mirror device is performed.
[0003]
[Problems to be solved by the invention]
In the conventional apparatus, first, the holder 30 integrated with the mirror housing 20 is mounted on the base shaft 10, and the drive device 50 is formed on the holder 30 in such a state. The worm mechanism 520, the gear mechanism 550, the electric motor 510, and the clutch member 60 forming the clutch mechanism, the ring gear (sun gear) 70, the spring 80, and the like must be individually assembled. This assembly work (assembly work) is complicated and complicated, and has many problems in its workability. In particular, assembling (assembling) the worm mechanism is a rather complicated operation, for example, the distance between the shafts must be maintained with high accuracy. In order to solve such problems, the drive unit composed of an electric motor and a worm mechanism is integrated into a unit, thereby improving the efficiency of assembly work and improving the efficiency of maintenance work. It is an object (problem) of the present invention to provide a door mirror device with a storage mechanism that can also be realized.
[0004]
[Means for Solving the Problems]
In order to solve the above problems, the following measures are taken in the present invention. That is, in the first aspect of the invention, the shaft is fixed to the door side and is attached so as to be capable of relative rotational movement with respect to the shaft, and the mirror is attached to the lower end surface thereof. A holder having a hemispherical concave portion for holding a ball, and a storage operation portion formed by a ball provided between a lower end surface of the holder and an arc groove provided in a base portion of the shaft. With respect to the door mirror device with a storage mechanism, a holder is mounted around the shaft through a ball and a spacer forming the storage operation portion, and relative rotation with respect to the shaft is impossible in such a holder. A ring member having a clutch portion on the inner diameter side on the upper side of the clutch member with respect to the shaft. A spring is mounted so as to be capable of relative rotational movement, and a spring that applies a predetermined pressing force to the bottom surface of the clutch member and the holder is mounted on the upper side of the ring gear via the ring gear. A fixing member that restricts the axial spring reaction force is provided, and a lock mechanism is provided between the ring gear configured as described above and the holder so that relative rotational movement between the two is impossible . I decided to take the composition.
[0005]
By adopting such a configuration, in the present invention, the assembly work of various parts including the drive device can be performed smoothly, and the efficiency of the entire assembly work can be improved. Become. In particular, since the drive device composed of a composite of an electric motor, a worm mechanism, and a gear mechanism is integrated in a separate process and unitized in advance, assembly of the worm mechanism that requires high assembly accuracy (assembly) ) Can be removed from the entire assembly (assembly) process, and the efficiency of the entire assembly work can be improved.
[0006]
Further, according to the present invention, it is possible to improve the assembly workability, the maintenance workability, and the like. In particular, according to the present invention, all parts (parts) can be attached from the upper part side, and the efficiency of the assembly work can be improved.
[0008]
Further, in the present invention, the door mirror device having the electric storage mechanism and the door mirror device having the manual storage mechanism can be used in almost the same parts in other portions except the driving device. Thus, a door mirror device having a manual storage mechanism can be formed (manufactured) at low cost. Specifically, in a door mirror device having an electric storage mechanism, the unitized drive device including the electric motor, the worm mechanism, and the gear mechanism is removed, and a relative rotation is not caused between the ring gear and the holder. by Rukoto provided a locking mechanism for, it is possible to easily form a door mirror device having a manually operated retraction mechanism. As a result, a door mirror device having two types of storage mechanisms, an electric storage mechanism and a manual storage mechanism, can be formed after basic components are shared (shared). Costs can be reduced and assembly work can be made more efficient.
[0009]
DETAILED DESCRIPTION OF THE INVENTION
An embodiment of the present invention will be described with reference to FIGS. As shown in FIG. 1, the configuration of the first embodiment of the present invention is a shaft 1 fixed to the door side and attached to the shaft 1 so as to be capable of relative rotational movement. In addition, the drive device 2 for rotating the mirror around the shaft 1 is accommodated and a hemispherical recess for holding the ball 5 on the lower end surface 31 (see FIG. 2). ) 35, the spacer 51 provided between the lower end surface 31 of the holder 3 and the base portion 11 of the shaft 1, and the lower end surface 31 of the holder 3 and the base portion 11 of the shaft 1. It is basically composed of a storage actuating portion 55 formed by a ball 5 provided between the circular arc groove 111 provided.
[0010]
In such a basic configuration, the driving device 2 is formed by an electric motor, a worm mechanism, a gear mechanism, and the like, and these are integrated and unitized. . The holder 3 is mounted on the base portion 11 around the shaft portion 13 forming the shaft 1 via the ball 5 and the spacer 51 forming the storage operation portion 55. It is what. In such a holder 3, a clutch member 4 is mounted so that relative rotation with respect to the shaft portion 13 is impossible. Further, on the upper side of the clutch member 4, The ring gear 6 having the clutch portion 64 is mounted so that the relative rotation movement with respect to the shaft portion 13 is possible and the lower end portion 63 is in contact with the bottom surface portion 36 of the holder 3. A spring 7 for applying a predetermined pressing force to the clutch member 4 side through the ring gear 6 and further to the bottom surface part 36 side of the holder 3 is mounted on the upper side of 6. It is. Further, a clip (fixing member) 8 that restricts the value of the spring reaction force in the axial direction of the spring 7 and can be mounted from the axial direction side is provided on the upper side of the spring 7. It is designed to be provided. In addition, in what consists of such a structure, as shown in FIG. 2, the hemispherical recessed part 35 in which the said ball | bowl 5 is accommodated is provided in the lower end surface 31 of the said holder 3 at two places. ing. Further, two arc grooves 111 are provided in the base portion 11 of the shaft 1 so as to face the recessed portion 35. The retracting operation portion 55 is formed by the recessed portion 35, the ball 5, the arc groove 111, and the spacer 51.
[0011]
Next, the assembly procedure (assembly procedure) of the present embodiment having such a configuration will be described with reference to FIG. First, in FIG. 1, a ball 5 that forms the storage operation portion 55 is installed in an arc groove 111 provided in the base portion 11 of the shaft 1, and a spacer 51 is installed on the base portion 11. 5 so that the upper half of 5 is accommodated in a hemispherical concave portion 35 formed on the lower end surface 31 of the holder 3, and relative rotational movement is possible around the shaft portion 13 forming the shaft 1. Then, the holder 3 is installed (mounted). Next, the clutch member 4 is mounted around the shaft portion 13 in the holder 3 in such a state. In addition, as shown in FIG. 1, a two-sided width portion 131 is provided at the shaft portion 13 to which the clutch member 4 is mounted, and the inner diameter side of the clutch member 4 is also provided with the two-sided width. A shape corresponding to the take-up portion 131 is adopted. As a result, the clutch member 4 is fixed at the shaft portion 13 and is attached to the shaft 1 so that relative rotation is impossible.
[0012]
Next, the ring gear 6 forming the sun gear is mounted on the upper side of the clutch member 4 and around the shaft portion 13. And the clutch part 64 provided in the inner diameter part side of the said ring gear 6 and the clutch part of the said clutch member 4 are engaged. A spring (coil spring) 7 is installed on the upper side of the ring gear 6 in such a state, and the spring 7 is held on the upper side of the coil spring 7. A clip (fixing member) 8 that restricts the spring reaction force in the axial direction to a predetermined value is attached. The clip (fixing member) 8 has a plurality of radially formed tongue pieces on the inner diameter side, and the tongue pieces are bent by pushing them into the shaft portion 13 from above. Thus, the holding force in the axial direction (the axial direction of the shaft portion 13) is exhibited.
[0013]
In this manner, the unitized drive device 2 is mounted around the shaft portion 13 in the state where the ring gear 6 forming the sun gear and further the clutch mechanism portion are incorporated. Specifically, the drive device 2 is installed in the holder 3 so that the drive gear 26 forming the drive device 2 and the ring gear 6 forming the sun gear are normally engaged and engaged with each other. It fixes to the holder 3 with the fastening means 23 grade | etc.,. By performing such a series of assembly operations, a door mirror device having an electric storage mechanism is assembled. In the present embodiment, a series of assembling operations (assembling operations) such as the above-described unitized drive device 2 are used to insert all components from the upper side, or It can be carried out by installation work and further by mounting work. Therefore, the efficiency of the assembly work (assembly work) can be improved.
[0014]
Next, the operation mode etc. about the thing of this Embodiment are demonstrated. That is, when the electric motor forming the drive device starts operating, the worm mechanism and the gear mechanism incorporated therein start to operate, and the drive gear 26 forming the gear mechanism is driven to rotate. This rotational motion is transmitted to the ring gear 6 forming the sun gear. Since the ring gear (sun gear) 6 is normally fixed by clutch engagement with the clutch member 4, the drive gear 26 and the drive device 2 rotate around the sun gear 6. . That is, the holder 3 rotates around the shaft 1 based on the relative operation of the retracting operation unit 55 with the shaft 1. This rotational movement causes the door mirror to be retracted.
[0015]
Apart from this, when an abnormal force (load) is input to the door mirror, that is, the holder 3 side, a clutch mechanism formed between the clutch member 4 and the clutch portion 64 of the ring gear 6 is: The opening operation is performed against the pressing force of the spring 7. As a result, the ring gear (sun gear) 6 and the driving device 2 are integrally rotated around the shaft portion 13. That is, the door mirror operates in such a manner that it rotates in a predetermined direction with respect to the shaft 1 and releases the input of the abnormal load (force).
[0016]
Next, a second embodiment of the present invention having a manual storage mechanism will be described with reference to FIGS. The basic point of this is the same as that of the electric retractable type. The feature is that the drive device 2 composed of an electric motor or the like is omitted. Specifically, as shown in FIG. 3, the shaft 1 is fixed to the door side, and is attached so as to be capable of relative rotational movement with respect to the shaft 1. Provided between the holder 3 having a hemispherical recess 35 for holding the ball 5 on the end surface 31, and the arc groove 111 provided in the base portion 11 of the shaft 1 and the lower end surface 31 of the holder 3. And the holder 3 mounted via the ball 5 and the spacer 51 forming the storage operation part 55. The storage operation part 55 formed by the spacer 51 provided on the base part 11 of the shaft 5 and the shaft 1. A clutch member 4 which is mounted in the shaft 1 and mounted so as not to be capable of relative rotational movement with respect to the shaft portion 13 of the shaft 1; A ring gear 6 having a clutch part 64 on its inner diameter side, and an upper part side of the ring gear 6, the ring gear 6 being further moved to the clutch member 4 side. Consists of a spring 7 that presses against the bottom surface portion 36 of the holder 3 with a predetermined pressing force, and a clip (fixing member) 8 that restricts the axial spring reaction force of the spring 7. A lock mechanism 9 is provided between the ring gear 6 having such a configuration and the holder 3 to fix the relative rotational movement between the ring gear 6 and the holder 3 so as not to be possible ( (See FIG. 4).
[0017]
The assembly procedure (assembly procedure) and the like in the present embodiment configured as described above are the same as those described in the first embodiment. Further, in the present embodiment, the same parts can be used in the other parts except for the driving device 2 as compared with the first embodiment. It is. That is, the door mirror device having the manual retracting mechanism removes the unitized driving device 2 including the electric motor, the worm mechanism, and the gear mechanism from the first embodiment described above and is shown in FIG. As described above, a lock mechanism 9 is provided between the ring gear 6 and the holder 3 so as to prevent relative rotation between the ring gear 6 and the holder 3. By adopting such a configuration, a door mirror device having a manual storage mechanism can be easily formed. As a result, a door mirror device having two types of storage mechanisms, an electric storage mechanism and a manual storage mechanism, can be formed after basic components are shared (shared). It becomes possible to reduce the cost and improve the efficiency of the assembly work.
[0018]
【The invention's effect】
According to the present invention, a drive device formed by a motor or the like, a shaft fixed to the door side, and a shaft that is attached so as to be capable of relative rotational movement with respect to the shaft, the mirror is attached. And a holder for rotating the mirror around the shaft, and a holder having a hemispherical recess for holding the ball at the lower end surface thereof, the lower end surface of the holder, and the shaft And a storage mirror formed by a ball provided between the arc groove provided in the base portion of the door, and a door mirror device with a storage mechanism, wherein the drive device is formed by a motor and a worm gear mechanism. These are integrated into a unit, while the holder is mounted around the shaft via a ball and spacer that form the retracting operation part. At the same time, a clutch member is mounted in such a holder so that relative rotation with respect to the shaft is impossible, and a ring gear having a clutch portion on the inner diameter side on the upper side of the clutch member is attached to the shaft. Is mounted so that the lower end portion thereof is in contact with the bottom surface of the holder, and further, the clutch member and the A spring for applying a predetermined pressing force is mounted on the bottom surface side of the holder and a fixing member for restricting the axial spring reaction force of the spring is provided. A configuration is adopted in which a unitized drive device is mounted and a drive gear forming the drive device is engaged with the ring gear. It and was so now assembling the first and the various components of the drive can be smoothly carried out, it has become possible to improve the efficiency of the entire assembly operation. In particular, since the drive device composed of a composite of an electric motor, a worm mechanism, and a gear mechanism is integrated in a separate process and unitized in advance, assembly of the worm mechanism that requires high assembly accuracy (assembly) ) Work can be removed from the entire assembly (assembly) process, and the efficiency of the entire assembly work can be improved. Further, all of the series of assembly operations (assembly operations) can be performed from the upper side, and the efficiency of the entire assembly operation can be improved.
[0019]
In the present invention, a door mirror device having a manual retracting mechanism is attached to a shaft fixed to the door side so as to be capable of relative rotational movement with respect to the shaft. And a holder having a hemispherical recessed portion for holding the ball at the lower end surface thereof, and a ball provided between the lower end surface of the holder and an arc groove provided in the base portion of the shaft. And a holder is mounted around the shaft via a ball and a spacer that form the storage actuator, and relative to the shaft in the holder. A clutch member is mounted so that rotational movement is impossible, and a ring gear having a clutch portion on the inner diameter side is provided on the upper side of the clutch member. A spring that applies a predetermined pressing force to the clutch member and the bottom side of the holder via the ring gear is mounted on the upper side of the ring gear. In addition, a locking member that restricts the axial spring reaction force of the spring is provided, and a locking mechanism that fixes the relative rotation motion between the ring gear and the holder having such a configuration is impossible. Since the configuration is provided, the other parts except for the driving device can use almost the same parts as the electric retractable door mirror device, and the door mirror device having a manual retracting mechanism. Can be formed (manufactured) at low cost. That is, based on the electric retractable door mirror device, the unitized drive device consisting of an electric motor, a worm mechanism, and a gear mechanism will be removed from this, and the relative rotation between the ring gear and the holder will not be caused between them. By providing a lock mechanism for this purpose, a door mirror device having a manual storage mechanism can be easily formed. As a result, a door mirror device having two types of storage mechanisms, an electric storage mechanism and a manual storage mechanism, can be formed after basic components are shared (shared). Costs can be reduced and assembly work can be made more efficient.
[Brief description of the drawings]
FIG. 1 is an exploded perspective view showing an overall configuration of an electric retractable door mirror device according to a first embodiment of the present invention.
FIG. 2 is a view showing a structure of a lower end surface of a holder that constitutes a main part of a storage operation unit according to the present invention.
FIG. 3 is an exploded perspective view showing an overall configuration of a manually retractable door mirror device according to a second embodiment of the present invention.
FIG. 4 is a diagram showing an overall configuration of a lock mechanism that constitutes a main part of a manually retractable door mirror device according to a second embodiment of the present invention.
FIG. 5 is a developed perspective view showing an entire configuration of a conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Shaft 11 Base part 111 Circular groove 13 Shaft part 131 Two-surface width part 2 Drive apparatus 23 Fastening means 26 Drive gear 3 Holder 31 Lower end surface 35 Recessed part 36 Bottom face part 4 Clutch member 5 Ball 51 Spacer 55 Storage action part 6 Ring gear (Sun gear)
63 Lower end portion 64 Clutch portion 7 Spring 8 Fixing member (clip)
9 Locking mechanism

Claims (1)

A shaft fixed to the door side and mounted so as to be capable of relative rotational movement with respect to the shaft, a mirror is mounted, and a hemispherical concave portion holding a ball on the lower end surface thereof In a door mirror device with a storage mechanism, comprising: a holder having a storage mechanism formed by a ball provided between a holder having a lower end surface of the holder and an arc groove provided in a base portion of the shaft. A holder is mounted around the ball and spacer forming the retracting operation portion, and a clutch member is mounted in such a holder so that relative rotation with respect to the shaft is impossible. At the upper part side of the member, a ring gear having a clutch part on the inner diameter part side is mounted so as to be capable of relative rotational movement with respect to the shaft, and A fixing member is provided on the upper part side of the ring gear to attach a spring for applying a predetermined pressing force to the clutch member and the bottom side of the holder via the ring gear and to restrict the axial spring reaction force of the spring. A door mirror device with a storage mechanism, characterized in that a lock mechanism is provided between the ring gear configured as described above and a holder so as to prevent relative rotation between the ring gear and the holder .

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