JPS6316393Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] The present invention relates to a motor support device for a washing machine that adjusts the tension of a belt by moving the support position of the motor.

[Technical background of the invention]

Conventionally, in this type of motor support device, a shock absorber made of rubber or the like is fitted into a long hole formed in the motor mounting leg, and a shock absorber made of rubber or the like is fitted onto the top surface of an adjustment body which is removably attached to the motor support base using an engaging claw. It has been proposed to fix the motor to a motor support base by fixing the mounting legs of the motor with screws through the buffer.

[Problems with background technology]

However, in the conventional type mentioned above, the motor mounting legs are fixed to the top surface of the adjustment body with screws, which makes it difficult to perform this work inside the outer box of the washing machine. To fix the motor, it is troublesome and requires two steps: first fixing the motor mounting leg to the adjustment body with screws, and then attaching the motor to the motor support base. The structure was complicated and it was difficult to rationalize such things as automatic assembly.

[Purpose of invention]

The present invention has been made in view of the above points, and the object thereof is to provide a motor support device for a washing machine that allows easy and reliable mounting of the motor, facilitates belt tension adjustment, and has a simple structure.

[Summary of the idea]

In this invention, the mounting leg of the motor is movably installed on a motor support base via a buffer body and an adjustment body, and the rotation of the motor is transmitted to a driven device via a belt transmission mechanism. The body includes a base plate, a first engaging claw protruding from the lower surface of the base plate and engaging with a long hole on the upper face of the motor support base, and a second engaging claw protruding from the upper face of the base plate parallel to and orthogonal to the tension direction of the belt. and a third engaging claw, and the second and third engaging claws of the adjusting body are formed on the mounting leg of the motor via a buffer body each having a through hole penetrating therethrough. The motor support base includes an engaging portion that engages with the mounting hole and selectively engages with the upper surface of the motor support base and the lower surface of the adjustment body substrate along the orientation direction of the belt. It is characterized in that it can be easily and reliably fixed to the belt, and it is also easy to adjust the tension of the belt.

[Example of idea]

An embodiment of the present invention will be described below with reference to FIGS. 1 to 4. 1 is an outer box in which a washing tub 2 and a dehydration tank 3 are installed; 4 is a stirring blade installed inside the washing tub 2; 5 is a dewatering basket installed inside the dehydration tank 3; 6
is a plastic base fixed to the lower end of the outer box 1. Reference numeral 7 denotes a motor fixed to the base 6 as described later, and a drive pulley 9, a belt 10, and a driven pulley 11 are connected between the rotation shaft 7a of this motor and the drive shaft 8 of the stirring blade 4, which is a driven device. They are connected by a belt transmission mechanism 12. Reference numeral 13 designates three tapered trapezoidal mounting legs extending outward from the outer periphery of the motor 7 at 90 degree intervals. A square hole 14 as a mounting hole is formed in each of the mounting legs 13 as shown in FIGS. 2 and 3. Reference numeral 15 designates three buffer bodies made of an elastic material such as rubber, which are integrated with a buffer part 15a formed by appropriately cutting the bottom surface of a rectangular parallelepiped, and a flange part 15c forming an engagement groove 15b on the top surface of the buffer part 15a. This engagement groove 15b is provided on the mounting leg 13 of the motor.
It can be fitted into the square hole 14 of. In addition, in this state, a first through hole 16 having a substantially rectangular shape and a second through hole 17 on both sides sandwiching the first through hole 16 are formed along the tension direction of the belt so as to pass through an engaging claw of an adjustment body, which will be described later. A partition wall 18 is formed therein. The partition wall 18 is formed only on the upper surface of the buffer body 15 and has a generally wedge-shaped cross section. 19 is the mounting leg 13b on both sides
This is a motor support stand formed integrally with the base 6 so as to correspond to the center mounting leg 13a except for the central mounting leg 13a. A rectangular long hole 20 having a downwardly oriented hanging wall 20a is formed substantially parallel to the direction in which the belt 10 is stretched. Further, on the upper surface of the motor support base 19, a plurality of protrusions 21 are protruded from the upper surface of the motor support base 19, with a predetermined gap between each other, as engagement parts having a triangular cross section and extending in a direction intersecting, for example perpendicular to, the tension direction of the belt 10. The overall shape is approximately serrated.

Reference numeral 22 denotes an adjusting body formed by integral molding of plastic, which includes a rectangular base plate 23 and a pair of first engaging claws 24 projecting downward from the lower surface of the base plate 23. This first engagement hole 24 has a surface parallel to the tension direction of the belt, and has an interval equal to the width dimension of the elongated hole 20, and has a tip at each end that engages with the lower edge of the hanging wall 20a. A protruding claw portion 25 is provided. Further, on the upper surface of the substrate 23, a pair of second engaging claws 26 having a surface parallel to the tension direction of the belt are provided.
Further, a parallel surface is arranged so as to sandwich the second engaging claw 26 and to be perpendicular to the tension direction of the belt, with a gap 27 corresponding to the thickness of the partition wall 18 of the buffer body 15. A pair of third engaging pawls 28 are erected so as to face each other. The second engaging claw 26 is inserted into the first through hole 16 of the buffer body 15, and the claw portion 29 that engages with the upper surface thereof is inserted into the first through hole 16, and the third engaging claw 28 is inserted into the second through hole 17.
A claw portion 30 is provided protruding from the outer surface of each tip to be inserted into and engaged with the upper surface thereof. Further, on the lower surface of the substrate 23, a triangular cross section having substantially the same shape as the protrusion 21 is provided.
A protruding portion 31 as an engaged portion is provided in a protruding manner. Here, a motor support stand 32 corresponding to the mounting legs 13b on both sides of the motor 7 excluding the center of the motor support stand
(See Figure 3) is the central motor support stand 1 mentioned above.
It has approximately the same shape as 9, but differs in that the upper surface has no protrusions and is a flat surface.

Next, a procedure for attaching the motor 7 to the base 6 in this embodiment configured as described above will be explained. First, the first engaging claws 24 of the adjusting body 22 are placed on the motor supports 19, 32 and pressed while being aligned with the through holes 20 of the three motor supports 19, 32. At this time, in the central motor support base 19, the protrusion 31 as an engaged part protruding from the base plate 23 of the adjustment body 22 is selectively engaged with the protrusion 21 as an engaging part protruding thereon. This prevents the belt 10 from moving in the directional direction. By this operation, the claw part 2
5 is engaged with the lower edge of the hanging wall 20a.

On the other hand, shock absorbers 15 are fitted in the square holes 14 of the three mounting legs 13 of the motor 7 in advance, and in this state, the first through holes 16 and the second through holes 1 of the shock absorbers 15 are
7 is aligned with the second engagement claw 26 and third engagement claw 28 of the adjustment body 22, and press the mounting leg 13 toward the motor support bases 19, 32, so that each engagement claw aligns with each transparent Insert the hole and keep pressing until each claw engages with the upper surface of the buffer body 15. As a result, the second engaging claw 2
6 and the third engaging claw 28.
The partition wall 18 is fitted into the partition wall 18, and the second engaging claw 28 which is orthogonal to the tension direction of the belt 10 is fitted by the partition wall 18.
can be prevented from bending due to the tensile force of the belt 10,
A second engagement claw 26 parallel to the tension direction of the belt 10
In cooperation with this, each mounting leg 13 of the motor 7 can be firmly fixed to the motor support bases 19 and 32.

Next, the order in which the position of the motor 7 is adjusted will be explained. In this case, use pliers or the like to grasp the lower end of the first engaging claw 24 that engages with the central motor base 19 from the space between the lower surface of the base 6 and the floor surface,
Resisting the elastic force of the engagement claws 24, the claws 25 are deformed so that the opposing distance between them is reduced, and the claws 25 are attached to the hanging wall 2.
0a, the board 23 of the adjustment body 22 is lifted a predetermined distance above the upper surface of the motor support base 19, the protrusions 21 and 31 are disengaged, and the motor 7 is manually operated. From this state, the tension of the belt 10 is adjusted by moving the motor 7 along the longitudinal direction of the elongated hole 20. At this time, the motor mounting legs 13b on both sides can be freely moved as the center mounting leg 13a is adjusted because there is no protrusion on the upper surface of the motor mounting base 32 to which they are attached. When the motor 7 has been positioned and adjusted to a predetermined position, the center adjustment body 22 is pressed above the motor support base 19, the protrusions 21 and 31 are engaged again, and the claw portion 2 of the engagement claw 24 is
5 is brought into engagement with the lower end edge of the hanging wall 20a of the long hole 20, and with this operation the position adjustment of the motor 7 is completed.

As described above, according to this embodiment, the mounting leg 13 of the motor 7 to which the buffer body 15 is attached and the motor support base 1
Since the motor 7 can be easily fixed to the motor support bases 19, 32 by simply sandwiching the adjusting body 22 between the motors 9, 32, there is no need for any separate parts for attachment such as screw washers. In addition, four engaging claws 2
6 and 28, the third engagement claw 28, which is easy to bend and is orthogonal to the tension direction of the belt 10,
This and the belt 10 that is strong against the tension of the belt 10
Since a part of the buffer body 15 is fitted between the second engaging claw 26 parallel to the second engagement claw 26 to prevent deflection and to reinforce it,
It can be installed reliably and firmly, no screw tightening is required, and assembly can be easily automated. Also, when removing it, since screws are not used, it prevents the situation where the screws rust and become impossible to remove, even if the parts are particularly susceptible to rust, such as the bottom of the washing machine. It can be prevented. Moreover, as in the conventional case, the claw part 25 of the engaging claw 24 is connected to the part 20a of the hanging wall.
The tension of the belt 10 can be easily adjusted by moving the motor 7 by simply removing it from the lower edge, making it easy to work in a narrow outer box without using tools, and the protrusion 2
By shifting the engagement of 1 and 31 one pitch at a time, the tension of the belt 10 can be precisely adjusted.

[Effect of idea]

As is clear from the above description, the present invention allows the motor to be securely and easily fixed to the motor mounting base, and the workability of belt tension adjustment is good and fine adjustment is also easy, allowing accurate belt adjustment in a short time. It is possible to provide a motor support device for a washing machine whose tension can be adjusted.

[Brief explanation of the drawing]

Figure 1 is a vertical cross-sectional view showing the entire two-tub washing machine.
FIGS. 2 and 3 are exploded perspective views showing an enlarged appearance of the main parts of the present invention, and FIG. 4 is a vertical sectional view showing the assembled state of the main parts. In the figure, 4 is a stirring blade (driven device), 7 is a motor,
10 is a belt, 12 is a belt transmission mechanism, 13 is a mounting leg, 14 is a square hole (mounting hole), 15 is a buffer body, 1
6 is a first through hole (through hole), 17 is a second through hole (through hole), 18 is a partition wall, 19 is a motor support base, 20 is a long hole, 21 is a protruding part (engaging part), 22 is a regulating body;
23 is a substrate, 24 is a first engagement claw, 26 is a second engagement claw, 27 is a gap, 28 is a third engagement claw, 31
indicates a protruding portion (engaged portion).

Claims (1)

[Claims for Utility Model Registration] 1. A motor is movably installed on a motor support with its mounting legs via a buffer body and an adjustment body, and the rotation of the motor is transmitted to a driven device via a belt transmission mechanism. In the adjustment body, the adjustment body includes a base plate and a pair of first engaging claws protruding from the lower surface of the base plate in parallel with the tension direction of the belt and engaging with elongated holes formed on the upper surface of the motor support base. and a second pair protruding from the upper surface of the substrate, with a pair parallel to the tension direction of the belt and a pair perpendicular to each other facing each other.
and a third engaging pawl, and the buffer body is formed with a through hole through which the second and third engaging pawls of the adjusting body are inserted, and a through hole is formed in the mounting hole formed on the mounting leg of the motor. The second and third engaging claws of the adjustment body can be engaged with each other through the buffer, and the tension direction of the belt can be attached to either the upper surface of the motor support base or the lower surface of the adjustment body substrate. A washing machine comprising a substantially sawtooth-shaped engaging part arranged in a row intersecting with each other, and an engaged part provided on the other side and engaged by selectively meshing with the engaging part. Motor support device. 2. The third engaging claw of the adjusting body has a gap with the second engaging claw, and the buffer body has a pair of second through holes through which the third engaging claw is inserted, and a second through hole through which the third engaging claw is inserted. Claim 1 of the Utility Model Registration Claim, characterized in that the first through hole through which the second engaging hole pawl is inserted is formed with a partition between them that fits into the gap. washing machine motor support device.