JPS5826542A - Supporting bracket for motor - Google Patents

Abstract

PURPOSE:To reduce the deformation of the motor and the bracket as well as to simplify the mounting works to be performed on them by a method wherein the bracket is formed by installing an arm plate or reversed T-shape in upright position on a substrate, one side of the substrate is fixed to a mounting pedestal, and the motor is fixed to the arm plate. CONSTITUTION:The bracket 1 is formed by installing a reversed T-shaped arm plate 2 in upright position on the substrate 3 having a leg 7 on the outer circumference of its bottom face. At that time, the arm plate 2 is provided in upright position approaching one end of the substrate, and the ribs 8 and 9 to be used for reinforcement are formed at the side end of the substrate and the arm plate. Then, a motor 14 is placed on the wider side of the substrate 3 on the bracket 1 and fixed to the arm plate 2 using a screw 15, and at the same time, the motor is fixed to the mounting pedestal 10 on the narrower side of the substrate by penetrating a bolt 12. Accordingly, the bracket 1 can be installed to or removed from the mounting pedestal 10 with the motor 14 fixed on the bracket 1.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a bracket used for supporting and fixing a drive motor for a photosensitive drum, paper feed system, etc. on a mounting base in a copying machine.

2. Description of the Related Art Brackets are normally used to support and fix drive motors for photosensitive drums, paper feed systems, etc. on a mounting base in a copying machine. Conventionally, as shown in FIG. 1, the plaque (a) has an inverted shape consisting of an arm plate and a base plate (C). Then, to secure the motor on the mounting base,
First, screw the board C at a suitable number of places to the mounting base (not shown) using screws d, and then attach the shaft of the motor (not shown) located on the top of the board C at the position of the screw hole e of the arm plate. This was done by screwing the directional end faces.

In addition, here, f is a hole for passing the motor shaft provided in the arm plate, and g is a leg provided at the four corners of the back surface of the board C, and bolts may be used instead of screws.

However, such a bracket is weak against bending moments caused by external forces applied to the motor and arm plate.
Motor installation is unstable.

Also, if extra screws (C or bolts) are required to support and secure the motor on the mounting base, screws (d) cannot be rotated while the motor is attached to the arm plate. Therefore, once the motor is attached to the arm plate, it is impossible to attach or remove the bracket (a) from the mount, making the work of attaching and removing the motor to the mount extremely troublesome.

The present invention relates to an improvement of a motor support bracket that eliminates these drawbacks.

The present invention will be described below with reference to the embodiments shown in FIGS. 2 to 4. Reference numeral 1 denotes a bracket, and the bracket is usually formed integrally as a whole. 2 is the arm plate of the bracket 1, and 3 is its base plate.The arm plate 2 is in an inverted T-shape at a position offset from the center of the base plate 3 to one end, leaving enough space for bolting, which will be described later. standing upright.

Further, the substrate 3 has an axis of symmetry perpendicular to the plane of the arm plate 2. 5 is a motor mounting screw hole provided on the arm plate 2, 6 is a motor shaft penetration hole also provided on the arm plate 2, 7 is a leg provided at the four corners of the back side of the board 3, and 8.9 is each Arm plate 2
, which are reinforcing ribs provided along the side edges of the substrate 3.

The reinforcing ribs 8.9 increase the rigidity of the bracket 1 and reduce deformation of the bracket 1 when a bending moment is applied to the arm plate 2.

Next, the case where the bracket configured as described above is used for supporting and fixing a motor will be explained according to the example shown in FIGS. 2 and 3.

First, the bracket 1 is fixed to the mounting base 10. Therefore, insert the bolt 12 into the bolt hole 4 provided between the end of the board 3 near the arm plate 2 and the arm plate 2 and the bolt hole 11 of the mounting base 10, and tighten it with the nut 13 to fix it. do. At this time, the bracket 1 is firmly fixed to the mounting base 1o by sufficiently tightening the bolts 12 and nuts 13 by the action of the legs 7 provided at its four corners. Note that one bolt hole 4 is provided on the symmetry axis of the substrate 3, or two bolt holes 4 are provided symmetrically with respect to the symmetry axis.

Next, the motor 14 is fixed to the arm plate 2 by screwing 15 at the position of the screw hole 5. At this time, the motor 14 is placed on the board 3 whose end is far from the arm plate 2 (on the board 3 on the side opposite to the side where the bolt holes 4 are located), and its rotating shaft protrudes from the hole 6, such as a belt pulley, etc. It is designed to be connected to the transmission wheel 16 of.

As described above, the bracket 1 supports the motor 14 and fixes it to the mounting base 10. Therefore, when using such a bracket, no matter what external force is applied to the motor 14 or the arm plate 2, the bolts 12 should be moved in a direction that cancels out the effects of the external force (displacement of the motor 14, deformation of the bracket 1, etc.). Since the tightening force of the nut 13, the weight of the motor 14, etc. act, the displacement of the motor 14 and the bracket 1
deformation is reduced, and the motor 14 can be safely and reliably supported and fixed to the mounting base 10.

Also, the bolt holes 4 are located on the axis of symmetry of the board 3 of the bracket 1.
Since two or more brackets are provided symmetrically about the axis, even if a lateral force is applied to the motor 14 or the arm plate 2, the displacement of the motor 14 and the deformation of the bracket 1 are small, making it safe.

Furthermore, the number of bolts that fix the bracket 1 to the mounting base 10 is 1.
Only one or two pieces are required, reducing the number of parts.

In addition, when installing or removing the motor 14 or bracket 1, it is easy to do so by simply tightening or removing one or two sets of bolts 12 and nuts 13 while the motor 14 is attached to the arm plate 2. Installation and removal work becomes extremely easy.

Although the embodiments of the present invention are constructed as described above, it is of course possible to make various modifications to the design without departing from the spirit of the present invention. For example, the legs 7 can be provided at three locations, including the entire length of one end edge of the back surface of the substrate 3 and at both corners of the other end edge. Furthermore, many other conventional means can be used as the means for attaching the motor 14 to the arm plate 2 and the means for attaching the board 3 to the mounting base 10.

[Brief explanation of the drawing]

Figure 1 is a perspective view of a conventional motor support bracket, Figure 2 is a perspective view of a conventional motor support bracket.
The figure is a partially cutaway side view showing a state in which a motor is supported by an embodiment of the motor support bracket according to the present invention and fixed to a mounting base, FIG. 3 is a front view thereof, and FIG. It is a perspective view illustrating one example of such a motor support bracket.〇a...bracket, b...arm plate, C...
Board, d...screw, e...screw hole, f...hole, g
... Leg 1... Bracket, 2... Arm plate, 3...
Board, 4... Bolt hole, 5... Screw hole, 6... Hole, 7... Leg, 8.9... Riff, 1o... Mounting base,
11... Bolt hole, 12... Bolt, 13... Nut, 14... Motor, 15... Screw, 16...
Transmission car. Agent: Patent attorney Yoshi 1) Yugai (1 person) Figure 3 Figure 4 Figure 8

Claims (1)

[Claims] A bracket that supports the motor and fixes it to the mounting base includes an arm plate that supports the motor at its axial end face, and a substrate that is integrally formed in an inverted T shape orthogonal to the arm plate, The arm plate has a hole in its plane through which the rotating shaft of the motor is inserted, and is erected at a position offset from the center of the board toward one end thereof, and the board is placed on the arm plate surface. has a perpendicular axis of symmetry, is located within the plane of the substrate between the one end of the substrate and the arm plate, and is located at one position of the axis of symmetry stop or two symmetrical axis stops symmetrical to the axis of symmetry; The invention is characterized in that it has holes at two positions through which connectors for fixing the board to the mounting base are inserted, and furthermore, legs are provided protruding from the outer periphery of the bottom surface of the board to support the two brackets. Motor support bracket.