JPS6326268Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a buffer type door mirror. In particular, the present invention relates to a shock-absorbing door mirror in which a mirror housing that supports the mirror is pressed against a base by a spring, so that when a strong external impact force is applied, the mirror housing can tilt against the biasing force of the spring.

Conventionally, this kind of device has a mirror housing 2 that supports a mirror 1, as shown in FIGS. 1 to 3.
is pressed onto the base 4 by a spring 3, and when a strong external impact force is applied, the mirror housing 2 resists the biasing force of the spring 3.
is inclined to the state shown by the imaginary line in the figure. In this example, one end portion 31 of the spring 3 is engaged by a spring pin 5 to a joint plate 6 which is pivoted to a locking portion 41 formed by the base 4. On the other hand, the other end of the spring 3 is engaged with an engagement piece 71 of a bracket 7 fixed to the mirror housing 2 by hooking the other end 32 of the spring 3. That is, in order to lock the spring 3 to the base 4, first align the shaft hole 42 formed in the locking part 41 of the base 4 with the locking hole 61 formed in the base side end of the joint plate 6, Press fit the spring pin 5 in a bent state into those holes, and attach the joint plate 6 to the locking part 4 of the base 4.
1, and then joint plate 6
One end 31 of the spring 3 is engaged with the hooking hole 62 formed on the other end, and the other end is engaged with the engagement piece 71 of the bracket 7, and the mirror housing 2 is crimped and held on the base 4. There is. For this reason, a comparatively expensive spring pin is used, and since the mounting structure involves a press-fitting process, special tools are required, and the assembly process requires a large number of man-hours and is relatively expensive.

In view of the above circumstances, the present invention has a relatively simple structure, does not require any special tools, is extremely easy to assemble, has good workability, and does not require the use of expensive parts. To provide a shock-absorbing door mirror whose tilting is stable, no excessive load is applied to any part, and no breakage occurs.

An embodiment of the present invention will be described below with reference to the drawings.

Note that the same reference numerals are used for configurations common to those of the conventional example. As shown in the side cross-sectional view of FIG.
When a strong external impact force is applied, the mirror housing 2 resists the biasing force of the spring 3 and tilts as shown by the imaginary line in the figure.

In the present invention, as shown in FIG. 5, one end 31 of the spring 3 is engaged with a hook joint 8 inserted through the base by means of a pin 5 formed of a round bar or the like. The other end 32 of the spring 3 is locked to the mirror housing 2 side.

In the illustrated example, the end portion 32 of the spring 3 is hooked onto the locking piece 71 of the bracket 7 fixed to the mirror housing 2 to effect locking. As shown in FIG. 6, the hook joint 8 has a horizontal S-shape and is provided at both ends with a hook portion 81 that locks the spring 3 and a hook portion 82 that locks the pin 9.

As shown in FIGS. 7 to 9, the base 4 is formed with a bulge 10 that protrudes toward the mirror housing 2. At the center of the bulge 10 is a cut 10a that opens in the horizontal direction of the base 4. It is formed. A pin 9 is press-locked to the inside 10b of the bulging portion 10 via a hook joint 8. FIG. 10 is a diagram showing a state in which the pin 9 is crimped and locked to the inside 10b of the bulging portion of the base 4.

In other words, the hook portion 81 on the mirror housing 2 side
Lock the spring in (at this point,
(The spring 3 is kept in a natural state) The hook part 82 on the base 4 side is inserted into the cutout 10a of the bulge part 10.
The pin 9 is loosely fitted into the hook portion 82 so as to pass through the base 4 from the base 4 to the inside thereof. In this state, spring 3
is pulled toward the mirror housing 2 side, the other end of the spring is engaged with the engagement piece 71 of the mirror housing 3, and the spring 3 is stretched between the mirror housing 3 and the base 4. At this time, the pin 9 is crimped and secured to the inside 10b of the bulge 10 by the tensile force of the spring 3. Although the pin 9 is loosely fitted into the hook part 82 in the interior 10b of the bulge 10, it is restricted by the upper and lower inner walls 10c of the bulge 10, and similarly cannot move laterally. side wall 10d
Moreover, the base 4 is prevented from falling outward from the inside 10b of the bulge 10 by the bulge 1 due to the spring 3.
0 to the front wall 10c, and prevents the pin 9 from falling off from the hook portion 82.

Therefore, when assembling and crimping the mirror housing 2 to the spring 4, one end of the spring 3 is simply locked to the hook portion 81 of the hook joint 8, and the hook portion 82 side is inserted into the inside 10b of the bulging portion 10. This can be done very easily by loosely fitting the pin 9 into the hook portion 82 and, in this state, engaging the other end of the spring 3 with the engaging pressure portion 71 of the mirror housing 2. is the hook part 82
Because it only fits loosely into the mirror housing 2, it does not require any special tools, greatly improving work efficiency, and making it possible to provide inexpensive products. Even if the hook joint 8 rotates and the spring 3
can match the tensile direction of , and as a result,
During buffering, the spring 3 is not strained, no excessive force is applied to the hook joint 8 or the base 4 to which it is attached, and no damage occurs, and an extremely stable buffering function can be achieved.

In the illustrated example, the position of the spring 3 is guided by a bracket 7 fixed to the mirror housing 2 so that the tension of the spring 3 is always approximately perpendicular to the axis 21 which is the center of tilting, and the spring 3 is Reference numeral 41 of base 4 of partial diagram 4
Prevents contact with parts. Bracket 7
Due to the presence of , a stable buffering effect can be achieved even though the mirror is tilted by θ as shown in FIG. In this example, the support shaft 21 is formed on the base 4, and a seat 22 formed on the mirror housing 2 fits thereto for tilting.

As described above, the shock-absorbing door mirror of the present invention includes a base having a bulge that protrudes toward the mirror side and has a cut in the center, and at least two hooks that are inserted into the bulge from the cut. , a pin that engages the hook joint in a bulged portion, and a spring that is stretched between the engagement piece of the mirror housing and the hook joint, and the pin is loosely fitted into one hook of the hook joint. After locking the spring to the other hook portion, the spring is locked to the locking piece of the mirror housing, thereby crimping and retaining the pin within the bulge, thereby crimping the mirror housing to the base. Since it is characterized by being held, it is extremely easy and simple to assemble, has very good workability in manufacturing, is therefore inexpensive, and even when acting as a buffer,
The tilting is stable, no excessive pressure is applied to any part, and no damage occurs.

It should be noted that, as a matter of course, the present invention is not limited to the illustrated embodiment.

[Brief explanation of the drawing]

Fig. 1 is a side sectional view showing the conventional example, Fig. 2 is a partially cutaway view of the same, Fig. 3 is a detailed view of the same main part, Fig. 4 is a side sectional view of the embodiment of the present invention, and Fig. 5 is the same. Partial cutaway view,
Figure 6 is a plan view showing the hook joint, Figure 7
The figure is a detailed view of the main part, Figure 8 is a sectional view of the base, and Figure 9 is a sectional view of the base.
The figure is a view taken in the direction of arrow A in FIG. 5, and FIG. 10 is an action view showing the engaged state of the hook joint. 1...Mirror, 2...Mirror housing, 3...
...Spring, 4...Base, 8...Hook joint, 9...Pin, 10...Bulge.

Claims (1)

[Scope of utility model registration request] A shock-absorbing door mirror in which a mirror housing supporting the mirror is crimped to the base with a spring includes a base having a bulge that protrudes toward the mirror side and is cut in the center, and a bulge that is inserted through the bulge from the cut. A hook joint having at least two hook portions, a pin that engages the hook joint in a bulged portion, a spring tensioned between the engagement piece of the mirror housing and the hook joint, and the pin is attached to one hook of the hook joint. After loosely fitting the spring into the hook part and locking the spring to the other hook part, the spring is locked to the locking part of the mirror housing, whereby the pin is crimped and locked in the bulge part, and the pin is then locked to the mirror housing. A buffer-type door mirror characterized by being crimped and held on a base.