JPS5835618A - Oscillating arm driving device - Google Patents

Abstract

PURPOSE:To fix an oscillating arm well in the oscillation range with simple constitution, by making it possible that the hooking part of the oscillating arm and the hooking part of an auxiliary oscillatng arm are hooked with each other in the oscillation range limit position of the oscillating arm which is turned around a supporting shaft and has the hooking part. CONSTITUTION:An oscillating arm 24 turned around a supporting shaft 23 attached to a casing is oscillated back and forth by he rotation of an oscillation driving material 21, and an auxiliary oscillating arm 27 turned around a supporting shaft 26 is oscillated back and forth by the rotation of an auxiliary oscillating arm driving material 22. A pin-shaped hooking part 31 and a projection- shaped hook part 32 are provided on arms 24 and 27 respectively, and driving materials 21 and 22 are positioned for attachment. Thus, the hooking part 31 of the arm 24 and the hook part 32 of the arm 27 are hooked in the oscillation range limit of the arm 24.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a swing arm drive device used to drive a swing arm 111 that rotates within a predetermined angle range about a support shaft.

This type of swing arm drive device is used, for example, to raise and lower an automobile tractor pull headlight 1 as shown in FIG. That is, the swinging arm 6 is swung within a predetermined angle range by the motor 2, and the bed light housing 5, which is pivotally connected to the swinging arm 3 via the link 4, is closed with a closing member 9, as shown in FIG. 1(a)K. As shown in FIG. 1(b), the open friend Susu-no-ku is used. In the case of a conventional swing arm drive device in which the swing arm 6 is fixed by the tension of a spring, the a! The headlight housing 5 may shake up and down when driving on rough roads, and when the tension of the spring is increased, the load on the drive section becomes too large.

This invention was made in view of the above-mentioned conventional problems, and has a simple structure and can easily fix the swinging arm at the limit position of the swinging range. In the case of pull headlights, it effectively prevents the shaking of the gorge light when it is in use and when it is stored.
In the case of a damper device, it is an object of the present invention to provide a swinging arm drive device that can easily fix the mosquito fin when the opening/closing fin is released and closed.

A swinging arm drive device according to the present invention includes a swinging arm that rotates around a support shaft and has a hook, a swinging arm driver that swings the swinging arm, and a swinging arm that rotates around the support shaft. an auxiliary swinging arm that moves and has a latching portion; and an auxiliary swinging arm driver that swings the auxiliary swinging arm; The locking portion of the movable arm and the hooking portion of the auxiliary transverse arm can be locked, and the locking of the swinging arm at the limit position of the swinging range and the release of the restraint at other positions are possible. It is a feature.

Embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 2 shows a swing arm drive device 10 according to an embodiment of the present invention.
FIG. 3 is a perspective view of the main parts showing the mechanical parts. In FIG. 2, 11 is a drive motor, and 12 is a drive device casing. Drive motor 1
1, as shown in FIG. 3, a field magnet 16 and an armature 14
One end of the armature shaft 14& is fixed to a 1gK manual operation knob 151, and a worm 16 is formed on the other end. A worm wheel 17 that engages with the worm 16 is fixed and rotated, and the rotating shaft 16 is pivotally connected to the casing 12. A swing arm drive body 21 and an auxiliary swing arm drive body 22 are attached to the rotating shaft 18, and a swing arm 24 that rotates around the nine supporting shafts 2δ is attached to the casing 12.
is biased by a tension spring 2BK to the swinging arm driver 21 to enable the swinging arm 24' to swing back and forth as the swinging arm driver 21 rotates, and is attached to the casing 12. The auxiliary swing arm 27, which rotates around the support shaft 26t, is biased by the tension spring 28 against the auxiliary 1st arm drive body 22111, and the auxiliary swing arm 27 is rotated around the auxiliary 1st arm drive body 22. It is possible to rotate and swing back and forth.

Furthermore, the swinging arm 24 and the auxiliary m-arm 27 each have a bottle-shaped hooking portion 61 and a protruding-shaped hooking portion!
2 (J!2a, JS2b), and the swing arm driving body 2
1 and the auxiliary swing arm drive body 22° are mounted without performing positioning. Therefore, at the swing range limit position of the swing arm 24, the latch ll31 of the swing arm 24 and the hook of the auxiliary swing arm 27 are The stop portions 32 (52a, $21e) are latched so that the movement of the swinging arm 24 can be restrained as described later when the swinging arm 24 is at the limit position of the swinging range of the swinging arm 24. I'm looking forward to it.

Note that 61M is a stopper provided with a casing 12Kjl to determine the limit position of one swing range of the swing arm 24.

No. 4811 is a circuit diagram for stopping the swing arm 24t at its swing range limit position,
This figure shows an example of use as a drive device for an IJ rough tuple headlight 1 of an automobile shown in FIG.

That is, in the figure, 65 is a battery, 66 is an operation switch, 67 is a relay, and so on! +8 is Narkitpureka,
39a and A9b are conductive plates fixed to one side of the worm wheel 17, and 40m, 40b, and 40cFi are contact points that make conductive contact with the conductive plate 691°39b.

The operation will be explained below based on FIGS. 4 and 5.

First, in FIG. 5(a), the swing arm 24 is at one of its swing range limit positions, for example, the IJ shown in FIG. A certain positional relationship is shown, and the electric circuit at this time is in the state shown in FIG. 4(1)K.

In other words, the operation switch s6 is open and the drive motor 11 is not energized (the rotating shaft 18 is not energized).
has stopped. In this state, the hooking portion 31 of the swinging arm 24
is hooked to the lower hook portion 52b of the supplementary horse mackerel swing arm 27,
At the same time, the swinging arm 24 is connected to the stopper 66 and the swinging arm driver 2
1, the short side supports 21, & are in contact with each other, and the swinging arm 24
The movement of the light housing 5 is restricted, and the light housing 5 in the state shown in FIG. 1 (&) is prevented from moving up and down when traveling.

Next, when raising the light housing 5 at night or the like, the operation switch 36 is pressed. Then, relay 3
Possible ** point a of 7 moves from fixed contact to C 9, battery iso power supply contacts 40C1 conductive plate δ9b, contact 40b,
Electricity is applied to the drive waste basket 11 through the fixed contact 2 and the movable contact a, and at the same time as the drive motor 11 rotates, the rotating wheel 1
8 also rotates at a reduced speed. Therefore, as shown in FIG. 5(b), the first auxiliary swing arm 27 is pushed by the auxiliary swing arm driver 22 toward the right in FIG. Arms 240! 4 (@) When the rotating shaft 18 continues to rotate further by leaving the l stop part 61 and the circuit connection shown in FIG. 4(b), the rotating shaft 18 has rotated a little less than 180 degrees
As shown in K, the energization between the contacts 40b and 40c is cut off and the energization to the drive motor 11 is stopped, and the contact 40b is grounded to form a short circuit, and the worm wheel 17 stops after approximately 1800 revolutions. 5th
As shown in FIG.
As shown in FIG. 1(b), the light housing 5 rises on the other side of the swing range limit position 7, being pushed by the long o-ra 21b, and stops at the end position. In this state, the latching portion 61 of the swinging arm 24 and the upper latching portion 62a of the auxiliary oscillating arm 27 are latched, and this upper latching portion 252m
(Thus, the vertical movement of the swinging arm 24 is restrained, and the vertical movement of the light housing 5 in the raised state shown in FIG. 1(b) K is prevented. There is.

Next, when lowering the light housing 5 to store it, the operation switch 56 is opened in the state shown in FIG. 4 (6). Then, the movable contact a of the relay 37 returns from the fixed contact C to b, and the battery! +5 power is applied to the drive motor 11 through the contact 40C2 conductive plate 69b, contact 40a, fixed contact S, and movable contact ai, and at the same time as the drive motor 111 rotates, the rotary wheel 18 also decelerates and rotates. The swinging arm 27 is pushed to the right in FIG. 5(e) by the auxiliary #h swinging arm driver 22, and its latching portion 32m is separated from the latching portion 31 of the swinging arm 24, as shown in FIG. 4(d). ) Due to the circuit connection shown in K, the rotation shaft 18 continues to rotate as shown in FIG. The state returns to the state shown in Fig. 4 (1), and the short circuit disappears as soon as the power to the drive motor 11 is cut off, and when the rotating shaft 1B has rotated approximately 180 degrees, the state shown in Fig. 8 (1) K is reached. Go back and stop. Furthermore, since the movement of the swinging arm 24 is restricted again, it is possible to prevent the light housing 5 from moving in the vertical direction when it is stored.

If, for some reason, the light housing 5 cannot be raised or lowered automatically, the headlight can be raised or lowered by turning the manual operation knob 5. Further, even if the housing 5 is prevented from lowering due to foreign matter or the like during lowering, the swing arm driver 21 can still rotate, so the drive motor 11 can be prevented from being burnt out.

6 and 7 show other embodiments of the present invention. FIG. 6 is a longitudinal sectional view of the swing arm drive device 10, and FIG. Components that are the same as those shown in FIGS. 2 to 5 are designated by the same reference numerals. That is, as shown in the figure, a plate cam-shaped swinging arm driver 121 is fixed to the rotating shaft 18, and a hook 1 is attached to the tip of the swinging arm 124 that rotates around the support shaft 26. +1 is fixed, and the proverb 124 & is provided rotatably around this hook 161,
The swing arm 124 is biased against the swing arm drive body 121 by a tension spring 125, so that the roller 124a is always in contact with the swing arm drive body 121.

M-type・Next, to explain the operation, when the swing arm 124 is at one of the limits of its swing range, for example, when the light housing 5 is lowered as shown in FIG. As shown in FIG. 8 (-), the latch 1s1s1 of the swinging arm 124 is
It is hooked to the lower hook portion 62b of the auxiliary swing arm 27, and its upward movement is restricted. Further, the state of the electric circuit in this case is the same as in the case of FIG. 4(a). Next, when the 1 light housing 5 is raised as shown in FIG. 1 (kl), when the drive motor 11 is energized and the rotating shaft 18 is rotated, the auxiliary rocking The arm 27 is pushed to the right in FIG.
24 rises via the roller 1241 in accordance with the shape of the cam-type driving body 121, and as it approaches the top dead center of its swinging range, the auxiliary swing arm 27 moves up the driving body as shown in FIG. 8(6). 8 (O) in response to the movement 11 of 22, the hooking portion 131 of the swinging arm 124 and the upper hooking portion 621 of the auxiliary swinging arm 27 engage with each other, K to prevent the light housing 5 from moving up and down. The electric circuit at this time is in the state shown in FIG. 4(c), as described above. Note that the power supply to the drive motor 11 is cut off when the contact 40b separates from the conductive plate 39b, but it does not stop immediately due to inertia etc., and the contact 4
0b comes into contact with the conductive plate 39aK to form a seat circuit, thereby stopping the WIJMJ, but it is inevitable that the stopping position at this time will vary. Therefore, in order to cope with this, the swing arm drive body 1
Regarding the cam shape of No. 21, the radius of the cam is kept constant by a predetermined angle near the limits of the swinging range (top dead center and bottom dead center) of the swinging arm 124, and some variations in the stopping position of the swinging arm driver 121 are prevented. It is more desirable to prevent the 4h swing arm 124 from moving up and down when this happens.

Next, when lowering the live housing 5, the drive motor 11 is energized again in the same manner as described above, and the WA@
The shaft 18 is rotated seven times, and the driving body 2 is rotated as shown in FIG. 8(d).
2, the auxiliary swing mN27 is moved to the right and the upper latch 11s2a and the latch W6161 of the swing arm 124 are engaged with each other, f! After passing through the state shown in Fig. make it stop

FIG. 9 is a diagram showing another example of the shape of the auxiliary swing arm 27, in which the upper stop W652& and the lower stop M
& 2 b O bottom [side t f-C shape (t) VC type H.

Indicates when In this way, even if there is some variation in the position of the hook 1$31.131 of the broadcasting pin 24, 124 or the position of the hook 32 (32m, 32b) of the auxiliary swing arm 27, etc. Therefore, the inner latching part can be latched completely securely.

FIG. 1O is a diagram showing still another example of the shape of the auxiliary swing arm 27. In both of the above embodiments, when the light housing 5 is lowered, some kind of obstacle (for example, the light housing Even when the arms 24, 124 stop moving toward the bottom dead center due to foreign matter getting into the vicinity of the drive motor 11, the swinging arm drivers 21, 121 can continue to rotate. It will not burn out and will rotate to the state shown in Figure IIn (Xu) and then stop.

Therefore, if the obstruction such as the foreign object is removed, the light housing 5 will be lowered by the force of the tension spring 25.125, but the latching portion of the swinging arm 24.124 will be lowered! 1.151 is rounded and stops at the INK position above the lower hooking part 32b of the auxiliary swing arm 27, and the light/using 5 is in a floating state, so the manual operation switch 56 is operated again to turn the light/S It is necessary to make Ujifugu 5 perform the ascent and descent again.

Therefore, as shown in FIG. 10, if an inclined surface JS2e is formed on the upper part of the lower hooking part 62'b, the above-mentioned obstacle can be removed and the light weight can be separated by 7% and the weight by 5 times. , the light housing 5 and the swinging arm 24° 124 are lowered by the force of the tension spring 2B, 125, and in this case the latching part 251
, 151 slides along the inclined surface 32e, and the hook portion 32b
If it enters the lower surface of the shaft, the swinging arms 31, 131 will be fixed by the ζ loop.

FIG. 11 shows still another embodiment of the invention,
In the embodiment shown in FIG. 7, the swing arm drive body 121 and the auxiliary swing arm drive body 22 were fixed to the same rotating shaft 18, but in this embodiment, the swing arm drive body 121 is rotated. Axis 11
81, and the auxiliary swing arm driver 122 is fixed to the rotating shaft 118bK, and both rotating shafts 118m, 1181e
are meshed with spur gears 119m and 119 to form an optical structure. In this case, either of the rotating shafts 118m and 118b may be connected to the drive motor 11 side. Furthermore, if the number of teeth on the spur gear 119 is half the number of teeth on the spur gear 119aO, the size of the auxiliary swing arm drive body 122 is made smaller than the size of the auxiliary swing arm drive body 22 shown in FIG. be able to.

FIG. 12 shows still another embodiment of the invention,
In the above embodiment, the latching W632 of the auxiliary swinging arm 27 is formed of an upper latching portion δ2a and a lower latching portion δ2b, but in this embodiment, the auxiliary oscillating arm 27 is Latching portion 162 of movable arm 127, -,,,,,! , issue, page -3 is formed only in the part corresponding to the front lower side hooking part 32b,
One side (bottom dead center) of the swing range limit position of the swing 1124 is set so that it can be restrained by the auxiliary swing arm 127. The other (top dead center) side of the swing range limit position is restrained by a stopper 164 that is fixed by side pressure on the device casing 12. Incidentally, when the rocking arm 24 is used to raise and lower the IJ (rough tuple head rise) 1t shown in FIG. 1, the stone 134 may be provided on the vehicle body.

FIG. 13 shows still another embodiment of the invention,
In the embodiment shown in FIG. 5, the swing arm drive body 21
A short roller 21m and a long roller 21b are provided at both ends of the roller, but in the embodiment shown in FIG. 13, the short roller 21at is omitted and only the long roller 221b is provided. The body 221 is used. The bottom dead center side of the limit of the swinging range of the swinging arm 24 is attached to the mounting casing 12 by a nine stopper 136. Even in this case, as shown in FIG.
-35G18 (5) can be done. Note that the above-mentioned stop horn 166 may be provided on the vehicle body side when applied to the automobile light shown in FIG.

FIG. 14 shows still another embodiment of the present invention.
The swing arm drive device according to the present invention is used as the fins 105m and 105 of a damper device 110 such as a smoke prevention damper and an air conditioning damper.
This shows the case where it is used to open and close b. In this case,
For example, by connecting the support shaft 22S of the embodiment shown in FIG. 7 to the drive shaft 126 of the fins 105m, 105b shown in FIG.
It is possible to effectively prevent flailing when opening and closing b.

Having explained the above, according to the present invention, when the swinging arm is rotatable around the support shaft, and at the swing range limit position of the swinging arm, the hook portion provided on the swinging arm and the support shaft The auxiliary swinging arm can be rotated around the latching part provided on the auxiliary swinging arm.
Since it is possible to restrain the 41Ik arm at the limit position of the swing range and release it at other positions, for example, when the light is used to drive a tractor-pull headlight of an automobile up and down, when the light is used (when raised). It also prevents shaking when stored (descent), and when a VC is applied such as a smoke damper or an air conditioning damper, the twin can be fixed in place when the opening/closing fin is opened or closed, and the drive motor, etc. This has excellent effects such as the ability to reduce the load on the drive means.

[Brief explanation of the drawing]

FIG. 1 (&) Cb) is a perspective view of a retractable headlight for an automobile to which the present invention can be applied, in a stowed state and a used state, respectively, and FIGS.
The figures are an explanatory view showing the external appearance of a swing arm drive device according to an embodiment of the present invention, a perspective view of main parts showing the mechanism part, and a fourth figure.
Figures (-~(d) are explanatory diagrams showing sequential changes in the connection state of the electric circuit of the swing arm drive II & electric circuit, Figure 5 (IL)~
(d) is an explanatory diagram showing changes in the mechanical parts of the swinging arm drive device, and FIGS. 6 and 7 are longitudinal sections II) and the mechanism of the swinging arm drive device according to other embodiments of the present invention, respectively. Part O1I part perspective view, Fig. 8 (&) - (f) Fi No. 71
10 is an explanatory diagram showing the changes in the mechanical parts of the swinging arm drive device in order; FIGS. 9 and 10 are explanatory diagrams showing an example of the 0*0 shape of the auxiliary swinging arm; FIGS. FIG. 13 is an explanatory diagram showing the mechanical parts of a swinging arm drive device according to still another embodiment of the present invention, and FIG. The explanatory diagram, FIG. 14, is a diagonal view of a damper device to which the present invention is applied. 10-...Swinging arm drive device, 1 B (118m, 118
b)... Rotating shaft, 21, 121, 221... Swing arm drive body, 22.122-... Auxiliary swing arm drive body, 25-
...Spindle, 24, 124-...Swinging arm, 25, 28,
125--Tension spring, 26--Spindle, 27,127
... Auxiliary swing arm, 31, IS 1--Latching portion, 32 (32m, 82b), 162...Latching portion, 3!
, 134... stopper, 110... damper device. -108- Figure 4 Figure 4 Figure 5 (8) (b) Figure 5 (C/ (dt 116 Figure 8 (b) Figure 8 (C) 7°124 (d),, 124 Figure 8 (e) ('' (j) 2> Figure 9 Figure 11 Figures 1 and 2 Figure 2 O Figure 13 (a) 221# (b' +33 Figure 13 (C) (d) Figure 13 ( e)

Claims (1)

[Claims] (1) A rocking arm that rotates around a support shaft and has a hook, a rocking storm drive body that rocks the rocking arm, and a rocking arm that rotates around a support shaft and has a hook. an auxiliary swinging arm having an auxiliary swinging arm, and an auxiliary swinging arm portion moving body that swings the auxiliary swinging arm 1tlI;
A swinging arm drive device characterized in that a hooking portion of the swinging arm and a hooking portion of the auxiliary swinging arm can be hooked at a +mj@l range limit position of the swinging arm.