JPH0681014U - Rotating structure of operating part - Google Patents

Abstract

(57) [Abstract] [Purpose] General mechanical parts, in particular, when a portion requiring angle adjustment, for example, the operating portion is to be used at a predetermined angle with respect to a fixed base, a rotary structure of the operating portion with an easy angle adjustment is obtained. . [Structure] The stand 11 and the operating portion 12 are rotatably provided in a C portion and a D portion. The portion C or the portion D is a pair of face gears 15 and 16 that are engaged with the inner surfaces of the stand 11 and the operating portion 12 so that they can mesh with each other, center holes of the gears 15 and 16 and the side plates 11a of the stand 11 and the operating portion 12. , 1
It is composed of a fixing screw penetrating through the bearing holes 11b and 12b of the screw 2a, and a tightening knob 17 which is screwed onto the protruding end of the male screw portion 14a of the screw 14 and is tightened.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a rotating structure of a mechanical part of an apparatus, in particular, an operation part used in a part requiring adjustment.

[0002]

[Prior art]

 Conventionally, as this type of structure, there is a configuration example shown in FIG. 2A and 2B are views showing a state in which an operating portion is rotatably supported by a stand serving as a fixed base. FIGS. 2A and 2B are a front view and a side view, respectively, and FIG. The disassembled perspective view of a left-sided shaft support part, (d) is an assembly side view of (c). As described above, conventionally, when it is desired to adjust the angle of the operating portion 2 with respect to the stand 1 as shown by the two-dot chain line in FIG. 2B, of the left and right shaft fulcrums A and B, for example, the shaft fulcrum In A, an angle adjusting mechanism as shown in FIGS. 2 (c) and 2 (d) was adopted. That is, the left side plate 2a of the operating portion 2 is provided with a bearing hole 2b and a plurality of angle determining screw holes 2c arranged at equal intervals on the same circumference centered on the bearing hole 2b. The shaft 3a is fitted and fixed in the bearing hole 2b. Further, the left side plate 1a of the stand 1 has a bearing hole 1b into which the support shaft 3a of the fixed shaft 3 of the operating portion 2 is inserted, and the same circle as the circle around which the hole 1b is provided and the screw hole 2 is arranged. The through holes 1c are provided symmetrically on the circumference of the radius. Incidentally, 4 is a fixing screw which is inserted into the through hole 1c of the stand 1 and fixed by being screwed into the angle determining screw hole 2c. Next, the assembling work of the left shaft support portion of the stand 1 and the operation portion 2 having the above-described configuration will be described with reference to FIGS. 2C and 2D. First, the operation portion 2 is fixed to the stand 1 at an arbitrary position. Then, the operating portion 2 is rotated to an arbitrary position, the fixing screw 4 is inserted from the through hole 1c, and is screwed and fixed to the angle determining screw hole 2c of the operating portion 2 facing the through hole 1c. At this time, the fixed shaft 3 is inserted into the through hole 2b of the operation portion 2 and the bearing hole 1b of the stand 1. As described above, the operation portion 2 is rotatably connected to the stand 1 at the shaft fulcrums A and B, and the angle is adjusted at the shaft fulcrum A (or B).

[0003]

[Problems to be solved by the device]

 However, in the rotating structure of the operating portion having the above-described configuration, when changing the mounting angle of the operating portion to the stand, after removing the fixing screw 4, the operating portion 2 is rotated to an arbitrary position for positioning, and then again. The fixing screw 4 had to be fixed by screwing it into a predetermined screw hole 2c, which was complicated.

The present invention was made in order to solve the problems of the conventional technique. After removing the fixing device, the fixing screw for re-screwing is not used, and It is an object of the present invention to provide a rotating structure for an operating portion, in which the mounting angle can be easily adjusted.

[0005]

[Means for Solving the Problems]

 The structure of the present invention for achieving the above object will be described with reference to FIG. 1 corresponding to the embodiment. In the device provided with a mechanism, and on the other hand, a known shaft supporting portion, the rotation angle adjusting mechanism includes face gears 15 and 16 which are respectively installed on the rotating contact surfaces of the stand 11 and the operating portion 12. And a fixing knob 14 penetrating from the operating portion 12 to the stand 11, and a tightening knob 17 screwed with the fixing screw 14 protruding from the stand 11.

[0006]

[Action]

 According to the present invention, when the tightening knob 17 is simply screwed to the tip of the fixing screw 14 projecting to the outer surface of the stand 11, the face gears 15 and 16 facing each other are provided. Since the gap is generated, the operation portion 12 can be rotated by a required angle. Therefore, since the face gears 15 and 16 are fixed at the positions in which they mesh with each other simply by turning the operating portion 12 to the required angular position and then tightening the tightening knob 17, the operating portion 12 is fixed to the stand 11 at a predetermined position. It is held at an angle. This eliminates the complexity of the conventional structure.

[0007]

Embodiments Embodiments of the present invention will be described below with reference to the drawings. 1A and 1B are views showing an embodiment of the present invention, in which FIGS. 1A and 1B are an external front view and a side view thereof, and FIG. 1C is a rotation angle adjusting mechanism which is one (D portion) rotation supporting portion. And (d) and (e) are a perspective view of the tightening state and a release state of (c). In the figure, 11 is a stand as a fixed base, and 12 is an operation part. As shown in (a), the operating portion 12 has its right side plate rotatably supported by the stand 11 and the C portion (shaft support portion 13), and the left side plate as shown in (c). A fixing screw 14 having a male screw portion 14a is attached, and the fixing screw 14 and an angle positioning face gear 15 screwed to the male screw portion 14a protruding from the through hole 12b of the left side plate 12a. Has been done. A bearing hole 11b is provided in the left side plate 11a of the stand 11 so as to face the through hole 12b of the left side plate 12a of the operation unit 12, and the male screw portion 14a of the fixing screw 14 of the operation unit 12 is the face face. The face gear 16 that meshes with the gear 15 and the bearing hole 11b of the stand 11 are penetrated. The face gear 16 is fixed to the left side plate 11a of the stand 11 so that its center hole 16a is connected to the bearing hole 11b. A tightening knob 17 has a female screw 17a at the center thereof which is screwed onto the tip of the male screw portion 14a of the fixing screw 14.

Next, the rotation support mechanism of the operation unit 12 with the stand 11 will be described. First, on the right side, as shown in FIGS. 1 (a) and 1 (b), it is rotatably supported by a bearing portion 13 (C portion) having a simple general structure. The left rotation mechanism is a feature of the present invention, and will be described with reference to FIG. 1C. The male screw portion 14a of the fixing screw 14 is inserted into the through hole 12b of the left side plate 12a of the operation portion 12. The fixing screw 14 is fixed to the side plate 12a of the operating portion 12 by screwing the face gear 15 onto the fixing plate 14. Since the male screw portion 14a of the fixing screw 14 projects from the face gear 15, the male screw portion 14a is fixed to the left side plate 11a of the stand 11, the center hole 16a of the face gear 16 and the bearing hole 11b of the stand 11 are fixed. Insert into. Then, the operation knob 12 is fixed to the stand 11 by screwing the tightening knob 17 into the male screw portion 14a of the fixing screw 14 protruding from the stand 11 and tightening this, and the state shown in FIG. 1D is obtained. .

Therefore, in order to fix the operating portion 12 with respect to the stand 11 at an arbitrary angle, by loosening the tightening knob 17 in the state of FIG. Since a gap is created, when the operating portion 12 is rotated, the male screw portion 14a of the fixing screw 14, which is the left fulcrum, rotates in the bearing hole 11b of the stand 11, and the right fulcrum 13 can freely rotate. The purpose can be achieved by turning the operating portion 12 to the desired angular position and then tightening the tightening knob 17.

[0010]

[Effect of device]

 As described in detail above, according to the present invention, one of the left and right fulcrums of the stand and the operating portion has a known rotating structure, and the other has a meshing structure of face gears opposed to each other. , The work of attaching / detaching the fixing screw and the work of aligning the mounting holes of the stand and the operating part are eliminated, and the positioning is simplified by the meshing of the face gears. The easier and more accurate the angle adjustment work, the greater the effect.

[Brief description of drawings]

FIG. 1 is an external view, an exploded perspective view of a main part, a tightened state view of the main part, and a released state view of the main part according to an embodiment of the present invention.

FIG. 2 is an external view of a conventional example, an exploded perspective view of a main part, and a detailed view of the main part.

[Explanation of symbols]

 11 Stand 12 Operating Unit 13 Shaft Support 14 Fixing Screw 15 Face Gear 16 Face Gear 17 Tightening Knob

Claims (1)

[Scope of utility model registration request] 1. A device having a rotation angle adjusting mechanism on one side of a rotary contact surface between a fixed base and an operating portion and a rotating portion on the other side, wherein the rotation angle adjusting mechanism comprises a fixed base and an operating portion. Face gears that are respectively provided to face the rotary contact surface, and a fixing screw that penetrates from the operation unit to the fixing base,
A rotating structure for an operating portion, comprising: a fixing knob protruding from a fixing base and a tightening knob screwed with the fixing screw.