JPH0615509Y2 - Versatile motor for automobiles - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial field of application) The present invention relates to a versatile motor for driving a jack, a small air compressor, a polisher or the like using a battery of an automobile.

(Prior Art) An automobile may need to be inflated, tire replaced, or tire chain mounted due to tire air leaks, punctures, snowfalls, or the like while the vehicle is running. To perform such work, it is necessary to jack up the vehicle body and use an air compressor for inflating. For this reason, although the pantograph type driving jack is stored and stored in the trunk, the conventional jack rotates the manual handle to raise and lower the receiving plate.
Since it is very laborious to use in the summer or in the snow, and the air compressor is large, it is generally not housed in the trunk of an automobile. Regarding jacks, Shokai 6
As disclosed in JP-A-3-88689, a device for rotating a screw rod of a manual jack by using a DC motor has been proposed.

(Problems to be solved by the invention) In a conventional device, as in Japanese Utility Model Laid-Open No. 63-88689,
Even if the DC motor is used as a manual jack, it is necessary to hold the heavy motor by hand at a predetermined position of the jack when the motor is in operation, which is a heavy labor. In addition, a power supply is required to drive the air compressor, and since the one incorporating a motor is large, it cannot be stored in the trunk of an automobile in many cases.

The present invention has been proposed in order to improve the above-mentioned problems associated with conventional automobile jacks and air compressors, and is a versatile motor that can be connected to an automobile battery and can be used as a driving unit for jacks and small air compressors. The purpose is to provide. Another object of the present invention is to provide a gear box and a small air compressor which are combined with the above-mentioned versatile motor.

(Means for Solving the Problems) In order to achieve the above object, the multipurpose motor 1 according to the present invention is a DC motor whose rotation direction can be changed by switching a hand-held switch 2 as shown in FIG. , Wiring up to the plug 3 via the handheld switch 2. The multipurpose motor 1 is wholly housed in a plastic housing 5 except for the tip end rectangular portion 4 of the rotary shaft, and a handle 6 is formed on the outer peripheral surface of the housing. The rectangular portion 4 of the rotary shaft is formed corresponding to the rectangular hole to be inserted, and in addition to the rectangular cross section shown in the drawing, it may have a modified cross section such as a hexagon or an ellipse. The same applies to the department. The square part 4 of the rotating shaft is
A pair of buckles 7 is attached to the front peripheral wall of the housing 5 at the center of the circular end surface of the housing 5, and the buckles allow gear boxes 8 (Fig. 1), 9 (Fig. 6) or a small air compressor 10 ( It can be removably attached to (Fig. 2). The buckle may have various modified shapes in addition to the shape shown in the drawing. The gear box 8 used in the present invention includes a tip end square portion 12 of a rotary shaft and a rear end portion of the drive shaft (shown in the figure). Except for (not), the whole is housed in a cylindrical plastic housing 13, and a horizontal insertion portion 14 is formed above the housing and a pair of protrusions 15 is formed behind the peripheral wall. The gear box 8 (Fig. 1) is
It is thicker than the gear box 9 (FIG. 6), and the rotation speed of the motor 1 is greatly reduced. The small air compressor 10 used in the present invention is housed in a rectangular plastic housing 17 except for the rear end 16 of the drive shaft (FIG. 3). As shown in FIG. 3, on the housing side surface 18 where the drive shaft rear end portion 16 is located, an annular projection 19 that fits with the front end surface of the motor housing 5 is formed, and buckle stop holes 20 are formed on both side walls of the housing. Set up.

(Operation) In the multi-purpose motor 1 according to the present invention, the square tip portion 4 of the rotary shaft is fitted into the rear square holes of various component drive shafts, and the gear boxes 8, 9 or the pair of buckles 7 are provided. It can be detachably attached to a small air compressor 10 or the like. To install the gear box 8 on the jack 11, attach the tip 12 of the rotary shaft to the screw rod 21 of the jack 11 (Fig. 4).
The rear end face rectangular hole 22 (FIG. 5) is fitted in, and the protrusion of the U-shaped receiving plate 23 installed behind the jack is inserted into the horizontal insertion 14. The other gear box 9 has a polisher 24 (FIG. 7) and a brush 25.
(Fig. 8) can be detachably attached. Further, in order to mount the small air compressor 10, the front end surface of the motor housing 5 may be fitted to the annular projection 19 and the pair of buckles 7 may be locked in the stop holes 20 of the housing 17.

(Embodiment) The present invention will be described with reference to the drawings. FIG. 1 shows a multipurpose motor 1 according to the present invention together with a gear box 8. The multi-purpose motor 1 is a well-known 12V DC motor whose rotation direction can be changed by switching the well-known hand-held switch 2, and is wired to the insertion plug 3 via the hand-held switch 2 by a considerably long cord 55. The switch 2 is, for example, an automatic restoration type toggle switch, and when the front end portion 30a of the button 30 is pressed, the motor 1 rotates forward and the rear end portion 30b.
When is pressed, the motor 1 rotates in the reverse direction. The versatile motor 1 is wholly housed in a plastic housing 5 having a substantially cylindrical body except for the tip end rectangular portion 4 of the rotary shaft, and a handle 6 is formed on the outer peripheral surface of the housing. The rectangular portion 4 of the rotating shaft is the housing 5
A pair of buckles 7 are attached to the front peripheral wall of the housing 5 which is located at the center of the circular front end surface of the. With buckle 7,
The rear end portion of the elongated rotary plate 31 is provided with the side wall projection 3 of the housing 5.
2 and 32 are pivotally mounted, and further, the rear end of the stop plate 33 is pivotally mounted in the rear notch of the rotary plate. Tip 34 of stop plate 33
Is bent at a substantially right angle so that it can be locked to the protrusion 15 of the housing 8. Further, on the circular front end surface of the housing 5, a circumferential projection 35 and a pair of rectangular projections 36 are formed so as to be inscribed in the projection.

The gearbox 8 for the jack is composed of a known gear group that is appropriately meshed, is thicker than the gearbox 9 (FIG. 6), and reduces the rotation speed of the motor 1 more greatly. As shown in FIG. 1, the gear box 8 is wholly housed in a cylindrical plastic housing 13 except for a tip end square portion 12 of the rotary shaft and a rear end portion (not shown) of the drive shaft. A horizontal insertion portion 14 is formed above the and a pair of protrusions 15 is formed behind the peripheral wall. Tip of rotation shaft 12
Is in an eccentric position on the circular end face 37, and the rear end of the drive shaft is located at the center of the circular rear end face. On this circular rear end surface, an annular projection 38 which can be fitted into the circumferential projection 35 of the motor housing 5 is formed, and the projection 38 is provided with a notch 39 which matches the pair of rectangular projections 36. On the other hand, the horizontal insertion portion 14 is a curved hollow portion formed from the front end surface along the outer peripheral wall of the housing 13, and has a pair of protrusions 15.
Has an inverted U-shaped plane, and the outer surface of the front wall portion 40 is appropriately curved so as to easily hold the tip of the stop plate of the buckle 7.

As shown in FIG. 4, the jack 11 is composed of four metal links 41 and 42 having a U-shaped cross section having substantially the same size, and through holes for inserting pins are formed at the front and rear ends of each link. On the other hand, similarly, two through holes for inserting pins are formed in the base 43 and the receiving plate 44 having a U-shaped cross section at predetermined intervals. As a result, the four links 41 and 42 can be assembled in a rhombus shape through the plurality of mounting pins, and the upper link 41 and the lower link 42 are connected by the two pins 45 and 46 having a larger diameter. . The front connecting pin 45 having the notched flat surface has a threaded rod 2 at its middle portion.
A female screw hole (not shown) for screwing 1 is provided in the diametrical direction, while the rear connecting pin 46 having a circular cross section has a through hole (not shown) for bearing the screw rod 21 at its intermediate portion. Are provided in the diameter direction. A small diameter portion 48 having a length into which the female screw hole of the connecting pin 45 can be fitted is provided at the rear portion of the screw rod 21, and the diameter of the small diameter portion needs to be smaller than the inner diameter of the female screw hole. Have almost the same diameter. A male screw portion 49 is formed in front of the small diameter portion 48, and the male screw portion meshes with the female screw hole of the connecting pin 45. A compression coil spring 50 is fitted between the small diameter portion 48 and the connecting pin 46 on the screw rod 21, and the protection ring 51 fixed to the front end of the coil spring reaches the small diameter portion 48.
When the female screw hole of the connecting pin 45 is fitted into the small diameter portion 48, the ring 51 comes into contact with the peripheral surface of the connecting pin 45 and urges it outward. On the other hand, the tip of the screw rod 21 is also provided with a small diameter portion 52 having a length into which at least the female screw hole of the connecting pin 45 can be fitted, and the diameter of the small diameter portion is smaller than the inner diameter of the female screw hole 8. It costs.

To install the gear box 8 on the jack 11, the protrusion 5 of the U-shaped receiving plate 23 pivotally attached to the connecting pin 46 is used.
It is preferable to insert 3 into the horizontal insertion portion 14 of the gear box 8 and integrate it with the jack 11 at the time of use, or to hold the gear box 8 in the jack 11 in advance with bolts (not shown). In this holding state, the rectangular rotary shaft 12 of the gear box 8 has the rectangular hole 22 on the rear end face of the screw rod.
(Fig. 5). Next, in the multipurpose motor 1, the circumferential projection 35 of the housing 5 and the annular projection 38 of the gear box housing 13 are fitted to each other, and the projection 3
The eight notches 39 are aligned with the pair of rectangular protrusions 36.
After the stopper plate tip portion 34 of the buckle 7 is hooked on the protrusion 15 of the housing 13, the rotating plate 31 of the buckle 7 is rotated,
When the rotating plate is brought into close contact with the peripheral wall of the housing 5, the motor 1 can be detachably fixed to the gear box 8. In this fixed state, the tip rectangular portion 4 of the motor 1 is fitted in the rear end rectangular hole (not shown) of the drive shaft of the gear box 8.

In the jack 11, the mounting adapter 5 corresponding to each car
After fitting 4 into the receiving plate 44, it is placed below a predetermined position of the vehicle body, and the insertion plug 3 of the motor 1 is connected to the cigarette lighter socket of the automobile. Next, the button 30 of the hand-held switch 2 is appropriately pressed, the screw rod 21 is rotated by the motor 1, and the base 43 is used as a fulcrum to receive the receiving plate 44.
Raise and lower. Since the cord 55 of the motor 1 is considerably long, it is possible to work while checking the up / down state of the jack 1.
Regarding the handheld switch 2, the front end portion 30a of the button 30
When is pressed, the motor 1, that is, the screw rod 21 rotates forward, and when the jack 11 reaches the maximum raised position, the female screw hole of the connecting pin 45 fits into the small diameter portion 48 of the screw rod 21, and the screw rod 2
1 idles. Therefore, the screw rod 21 does not rotate beyond its limit position, and at this time, the coil spring 5
The 0 protection ring 51 contacts the peripheral surface of the connecting pin 45 and urges it outward. Then, when the button rear end portion 30b of the switch 2 is pushed, the motor 1, that is, the screw rod 21 is rotated in the reverse direction, and the connecting pin 45 is urged outward by the protection ring 51. Easy male thread 49
, And the descent operation of the jack 11 is started. On the other hand, when the descending operation of the jack 11 is continued due to the reverse rotation of the screw rod 21 and the maximum descending position of the jack is reached, the female screw hole of the connecting pin 45 fits into the small diameter portion 52 and the screw rod 21.
Does not rotate beyond its limit position because it rotates idly. Subsequently, when the screw rod 21 is normally rotated, the female screw hole of the connecting pin 45 easily meshes with the male screw portion 49 by the restoring force of the jack 11, and the jack 11
Restart the ascending operation. Regarding the jack 11, when the motor 1 cannot be used due to a cord disconnection accident or the like, the motor 1 and the gear box 8 are detached from the jack. If a commercially available bracket (not shown) is attached directly to the square hole 22 of the screw rod 21, it becomes possible to manually rotate it via a manual handle (not shown).

The small air compressor 10 shown in FIG. 2 may be a known positive displacement rotary type or the like, and is housed in a rectangular tubular plastic housing 17 except for the drive shaft rear end 16 of the movable blade rotor. As shown in FIG. 3, the housing side surface 18 has an annular projection 1 that fits with the front end surface of the motor housing 5.
9 is formed, and buckle stop holes 20 are provided on both side walls of the housing. The multipurpose motor 1 may be mounted by fitting the circumferential projection 35 of the housing 5 with the annular projection 19 of the housing side surface 18 and aligning the notch 60 of the projection 19 with the pair of rectangular projections 36. When the stopper plate tip portion 34 of the buckle 7 is hooked in the stopper holes 20 on both side walls of the housing, and then the rotating plate 31 of the buckle 7 is rotated to bring the rotating plate into close contact with the peripheral wall of the housing 5, the motor 1 is operated by air. It can be detachably fixed to the compressor 10. In this fixed state, the tip rectangular portion 4 of the motor 1 is connected to the air compressor 1
No. 0 drive shaft 16 is fitted in the rear end rectangular hole.

In the compressor 10, after the adapter 62 attached to the tip of the rubber hose 61 is fitted into the inflating valve (not shown) of the automobile tire, the button 30 of the hand-held switch 2 of the motor 1 is pressed appropriately to rotate the compressor 10 by the motor 1. Rotate the child at high speed. In this way, the compressed air is sent to the tire, and it is confirmed by the pressure gauge 63 that the predetermined pressure is reached. When an appropriate attachment (not shown) is connected to the adapter 62, it can be used for inflating an air mat, a rubber boat, a tent, a bicycle tire or various balls.

Further, the other gear box 9 shown in FIG. 6 is composed of a known gear group that is appropriately meshed with each other, and the rotation speed of the motor 1 is less decelerated than the gear box 8. Except for the tip square portion 70 of the rotary shaft and the rear end portion (not shown) of the drive shaft, the whole is housed in a cylindrical plastic housing 71, and a pair of projections 72 are formed on the peripheral wall of the housing. Is configured so that the tip of the stop plate of the buckle 7 can be easily held. The tip rectangular portion 70 of the rotating shaft is located at the center of the circular front end face, and the rear end of the drive shaft is located at the center of the circular rear end face. Similar to the gear box 8 in FIG. 1, an annular projection that can be fitted into the circumferential projection 35 of the motor housing 5 is formed on this circular rear end surface, and the projection is provided with a notch that matches the pair of rectangular projections 36. . The square hole 74 of the support base 73 of the gear box 9 has a square hole 70 so that the disk-shaped polisher 24 (FIG. 7) or the brush 25 (FIG. 8) planted in a circular ring shape can be detachably mounted. Can be fitted with. Although not shown, the support portion 73 is configured not to be easily detached from the square portion 70 or the square hole 74 by attaching a spring or fitting a protrusion and a recess. It is convenient to carry the handle 6 of the motor housing 5 by hand when polishing a vehicle.

(Effects of the Invention) The versatile motor according to the present invention can be installed in various gearboxes by simply inserting the square tip of the rotary shaft into the rear square holes of various drive shafts and fixing them with a pair of buckles. It can be attached to a jack, polisher, or brush via, or detachably attached to a small air compressor. The versatile motor of the present invention can be easily used by simply connecting the plug to the cigarette lighter socket of the automobile. Since the jack used in the present invention rotates the screw rod by the multi-purpose motor installed in the rear of the jack to raise and lower the receiving plate, it is not necessary to hold a heavy motor at a predetermined position of the jack by hand, and even a powerless female driver can use it. This makes it easy to replace tires in summer or attach tire chains during snowfall.
Further, if the multipurpose motor is detached from the jack, an air compressor and a polisher can be attached as desired, and the multipurpose motor can be used for tire inflating work or car polishing work. The air compressor used in the present invention is small in size because it does not have a power supply problem when it is driven and does not have a motor part, and can be easily stored in the trunk of an automobile.

[Brief description of drawings]

FIG. 1 is a perspective view showing a multipurpose motor according to the present invention together with a gear box, FIG. 2 is a side view showing a state in which the multipurpose motor is mounted on a small air compressor, and FIG. 3 is an air compressor of FIG. FIG. 4 is a side view showing a housing surface on which the rear end of the drive shaft is located, FIG. 4 is a side view showing a state in which a versatile motor and a gear box are mounted on a jack, and FIG. 5 is a vicinity of a rear end surface of a screw rod in the jack. FIG. 6 is a side view of a main part, FIG. 6 is a side view showing a state in which a multipurpose motor is mounted on the other gear box, FIG. 7 is a side view of a polisher mounted on the gear box of FIG. 6, and FIG. It is a side view of the brush attached to the illustrated gear box. 1 ... Multipurpose motor, 2 ... Handheld switch, 3 ... Plug, 5 ... Motor housing, 6 ... Handle, 7 ... Buckle, 8, 9 ... Gear box, 10 ... Small compressor,
11 ... jack, 13 ... gearbox housing, 17
... Compressor housing, 21 ... Screw rod, 24 ... Polisher, 25 ... Brush.

Claims (3)

[Scope of utility model registration request] 1. A multi-purpose motor which is a direct current motor capable of changing a rotation direction by switching a hand-held switch, which is wired to a plug through the hand-held switch, the plug being connected to a cigarette lighter socket of an automobile at the time of use. , The whole of the rotating shaft except the tip square part is housed in a plastic housing, and the tip square part is fitted into the rear end square hole of the drive shaft of various gearboxes or small air compressors, and a pair of buckles is used. A versatile motor that is detachably attached to various gear boxes or small air compressors. 2. The tip of the rotary shaft is housed in a cylindrical plastic housing except for the tip of the rotary shaft and the rear end of the drive shaft, and a horizontal insertion portion 33 is formed above the housing. Multi-purpose that can be removably attached to the jack by inserting the part into the square hole on the rear end surface of the screw rod of the jack and inserting the protruding part of the U-shaped receiving plate installed behind the jack to the horizontal insertion part Gearbox for motor. 3. A drive shaft, excluding the rear end thereof, is wholly housed in a rectangular cylindrical plastic housing, and an annular projection is formed on a side surface of the housing where the rear end of the drive shaft is located to be fitted with the front end of the motor housing. A compact air compressor for a multi-purpose motor that can be detachably installed by forming buckle holes on both side walls of the housing.