JPH0451050A - Operation display device - Google Patents

Abstract

PURPOSE:To stably hold an operation display part by providing a 1st member and a 2nd member on the axial line of a rotary shaft so that they may be opposite to each other and making the opposite surfaces as the surfaces for engaging both members. CONSTITUTION:A device is provided with the operation display part 2 provided with the rotary shaft 2a and for controlling the action of an equipment which is rotatively supported by the shaft with reference to the equipment main body 1, and the 1st member 4 provided with an engaging part 4b and supported by the rotary shaft 2a and for integrally rotating with the shaft 2a. And also, the device is provided with a part to be engaged 5b for engaging with the engaging part 4b by plural angles which are obtained when the 1st member 4 is rotated and for fixing the movement of the 1st member 4 in a rotating direction, the 2nd member 5 which is provided on the axial line of the rotary shaft 2a so that it may be opposed to the 1st member 4 and for fixing the movement in the rotating direction, and an operation member 3 for moving either the 1st member 4 or the 2nd member 5 in the rotating direction so as to engage one with the other, or to separate one from the other. Thus, the operation display part can be set to a stably engaged state by the full engagement force without locally applying a strong force to the engaging part.

Description

[Detailed Description of the Invention] 11 Yo Xiang Shin Wong! TECHNICAL FIELD The present invention relates to an operation display device used in an image forming apparatus such as a copier printer or other OA equipment, and particularly to a rotation mechanism thereof.

In conventional laser printers and the like, the operation display section is provided on the top or vertical surface of the device body, but depending on the installation location of the device, the operation display surface may be at an angle that makes it difficult to see. For this reason, various methods for rotating the operation display have been proposed.
18851), an operation display in which a plurality of retaining holes are provided in the side wall of the operation display section and an elastic engaging section is elastically engaged with the holes (see Japanese Patent Application Laid-open No. 132657/1982), an operation display. A roller with a low left is provided on the rotating shaft of the board, and one of its grooves is locked by a locking member protruding from the circumferential direction to fix the rotation (Utility Model No. 63-6
(see Publication No. 6850).

However, these conventional devices are troublesome to operate, do not move smoothly or move easily, and do not provide sufficient position holding force. In order to engage the locking member, only a part of the engaging part (one tooth of the knurling) is locked and the engaging part may be damaged. To prevent this, increase the diameter of the low left roller. There were issues such as the need for

The present invention solves the above problems in the prior art, and claims 1
An object of the invention is to provide an operation display device that is easy to operate, can stably hold the operation display part, and does not cause damage to the engaging part. In addition, it is an object of the present invention to provide an operation display device in which a member for operating the rotation of the operation display portion has a small protruding portion from the main body of the device and further has improved operability.

In order to solve the above-mentioned problem, the present invention according to claim 1 provides an operation display unit having a rotation shaft and rotatably supported from the main body of the device to control the operation of the device; a first member that includes an engaging portion and is supported by the rotating shaft and rotates integrally with the rotating shaft; and a first member that engages with the engaging portion at a plurality of angles when the first member rotates; A second member is provided with an engaged portion that fixes the movement of the first member in the rotational direction, and is provided opposite to the first member on the axis of the rotational shaft and whose movement in the rotational direction is fixed.
and an operating member that moves either the first member or the second member in the axial direction to engage or separate the first member and the second member. In addition to the above, the invention according to claim 2 is characterized in that the operating member has an operating section that protrudes outside the main body of the image forming apparatus in the axial direction.

The invention of claim 1 moves the first member or the second member facing each other in the axial direction of the rotating shaft to engage or separate the engaging portion and the engaged portion facing each other. Therefore, by using the opposing surfaces as locking surfaces, a stable locking state can be obtained with sufficient locking force without locally applying a large force to the engaging portion. Also, in terms of operation,
For example, when changing the operation display unit from one angle to another, move the first member or the second member in the ring direction to release the lock between them, and then rotate the operation display unit. The operation is as simple as simply moving the first member or the second member in the axial direction and engaging them again.

In the invention of claim 2, since the operating portion of the operating member that moves the first member or the second member is made to protrude outside the main body of the device in the axial direction, the operating portion only needs to move in the axial direction, and the protruding portion does not occupy a large area on the main body, and is easy to operate since it can be operated by pushing or pulling the protrusion.

Figure 1 is a schematic perspective view of an Il device, for example a laser printer, equipped with an operation display device to which the present invention is applied.

In the main body I of the laser printer, an image can be created on a sheet of paper using a known electrophotographic process by operating the operation keys on the operation display section 2 and the like.

Reference numeral 3c is an operating section of the unlocking member 3 (shown in FIGS. 2 and 3), which serves as an operating member for rotating the operation display section 2. As shown in FIGS.

Figures 2 to 4 are diagrams showing embodiments of the rotation mechanism, and the second
The figure shows a state in which the operation display section 2 is in a locked state and does not rotate, FIG. 3 shows a state in which the lock is released and the operation display section 2 can freely rotate, and FIG. 4 shows a laminated structure in which each part is disassembled. FIG.

The operation display section 2 is rotatably supported from the main body 1 about an axis C via bosses 2a and 2b, which are rotation axes thereof.

The rotation-side lock member 4, which is an example of the first member, is slidable in the axial direction and fixed in the rotation direction, and is mounted on the boss 2a so as to rotate together with the boss 2a. That is, a plate-shaped portion 4a is provided in the opening of the rotation-side locking member 4, and this portion fits into the groove 2a-1 of the post 2a, so that rotation is fixed. Also, rotation side lock member 4
A knurling 4b is provided on one surface side as an example of an engaging portion.

A fixed side locking member 5 as a second member is fixed to the main body 1 opposite to the rotating side locking member 4, and is arranged at a position centered on the axis C. That is, in this embodiment, the second member is fixed not only in the rotating direction but also in the direction of the axis C. A knurl 5b serving as an engaged portion that engages with the row left 4b is provided on the surface of the fixed side locking member 5 facing the rotating side locking member 4.

In this embodiment, the knurls 4b and 5b are chevron-shaped as shown in FIG. In this way, all the teeth will easily mesh with each other no matter what angle the rotating side opening ivy member 4 is positioned. However, it is also possible to provide a parallel portion in the grooves of both knurls so that these portions come into contact with each other, so that no force is applied in the direction in which the teeth of both left rows disengage.

The post part 5a of the fixed side locking member 5 is a hollow shaft, into which the shaft part 3a of the lock release member 3 as an operating member is slidably inserted, and the tip part 3b is a rotating side lock. It comes into contact with the plate-shaped portion 4a of the member 4.

In the diagram of the lock release member 3, the right end side is the operating portion 3C.

A spring 6 is provided inside the post 2a, and in the state shown in FIG. 4b and 5b are fitted together, and rotation of the operation display section 2 is fixed via the rotation side opening ivy member 4 and the post 2a.

On the other hand, in FIG. 3, when the operator
By pressing , the tip 3b of the spring 6 pushes the rotating side locking member 4 to the left in the figure against the biasing force of the spring 6, and the locking member 4 is released from the fixed side locking member 5. In this state, the operator can rotate the operation display section 2 at any angle and fix the rotation by releasing his hand from the operation section 3c.

FIG. 6 shows another embodiment. In this example, the low left portions 4b and 5b are formed into a tapered shape. In this way, the low left surface can be made larger, and the force applied to each tooth of the low left can be further reduced.

As the engaging portions of the rotating side locking member 4 and the stationary side locking member 5, other methods can be used other than the low left method, such as engaging the outer circumferential surface and the inner circumferential surface of both members by a spline.

Further, in this embodiment, the first member, the rotation-side locking member 4, is moved in the axial direction, but for example, a structure as shown in FIG. 7 is used so that the first member 4' is not moved in the axial direction. It is also possible to adopt a structure in which the second member 5' is moved in the axial direction.

As described above, according to the present invention, in the invention of claim 1, the first member and the second member are disposed facing each other on the axis of the rotating shaft, and the opposing surfaces thereof are Since it is used as a retaining surface of the member, a large force is not locally applied to the engaging portion, and sufficient engaging force can be stably obtained without damaging the engaging portion.

For example, when the engaging portion is a low left, all the teeth can mesh with the low left of the opposing engaged portion, and the force applied to each tooth of the low left can be reduced. Furthermore, by engaging both members facing each other along the same axis, force is not applied to the rotation fixing member from only a portion in the circumferential direction, so unnecessary moment is not applied to this member. First, both members can be smoothly engaged or disengaged.

In addition to the above-mentioned effects, the invention of claim 2 can improve the appearance of the device because the operating section protruding from the device body does not occupy a large area on the surface of the device body.

[Brief explanation of drawings]

Fig. 1 is a schematic perspective view of a printer which is an example of a device to which the present invention is applied, Fig. 2 is a cross-sectional view showing an example of the rotating mechanism of the operation display section, and Fig. 3 is a state in which the lock is released. 4 is an exploded perspective view thereof, FIG. 5 is a side view showing the shape of the low left teeth, and FIGS. 6 and 7 are sectional views showing other embodiments. , ... Laser printer main body (device main body) ...
...Operation display part a...Boss (rotation shaft) ...Lock release member C...Operation section ...Rotation side locking member (first member) b・・・・・・
Knurling (engaging part)... Fixed side locking member (second member) b...
Low left (engaged part) (operating member)

Claims (2)

[Claims] (1) An operation display section that includes a rotation shaft and is rotatably supported from the main body of the device and controls the operation of the device, and an engagement section that is supported by the rotation shaft and rotates integrally with the rotation shaft. a movable first member; an engaged portion that engages with the engaging portion at a plurality of angles when the first member rotates, and fixes movement of the first member in the rotational direction; a second member that is provided opposite to the first member on the axis of the rotation shaft and whose movement in the rotation direction is fixed; and either the first member or the second member is moved in the axial direction. An operation display device comprising: an operation member that engages or separates the first member and the second member. (2) The operation display device according to claim 1, wherein the operation member has an operation section that projects outside the main body of the image forming apparatus in the axial direction.