JPS587110A - Barrel for interchangeable lens capable of switching between manual focusing and autofocusing - Google Patents

Abstract

PURPOSE:To obtain a barrel for an interchangeable lens where manual focusing or autofocusing is selected in a focusing means with one touch. CONSTITUTION:When an operation ring 29 is pulled out from the state of an autofocusing function to the position of a manual focusing operation, a driven shaft 22 is moved to the left in figure (backward) in accordance with the movement of the operation ring 29, and meshing clutches 27 and 59 are disengaged, and a key 102 of the operation ring 29 is engaged with a key groove 103 of a rotary cylinder 4, thus making the manual focusing operation possible. The focusing driving force due to the manual operation of the operation ring 29 is transmitted to straightly feeding mechanisms 4, 5, 7, 8, and 9 directly. In the manual focusing operation, the rotation power of the manual focusing driving is not transmitted to the camera body, and a switch SW2 is opened.

Description

[Detailed description of the invention]

TECHNICAL FIELD This invention relates to an interchangeable lens barrel that can be switched between manual focusing and automatic focusing. In detail, k+ relates to an interchangeable lens barrel that is compatible with a camera body that has a built-in focusing drive motor and that moves a focusing optical system to focus by transmitting drive 17 to a driven shaft on the interchangeable lens side using a drive shaft. Conventional technologyAs an interchangeable lens that can selectively perform manual focusing operation and automatic focusing operation using the camera-side automatic focusing mechanism,
For example, one disclosed in Japanese Utility Model Application Publication No. 55-105407 is known. The interchangeable lens disclosed in the publication is provided with a rotating body that can rotate around an axis perpendicular to the optical axis at the rear end of the lens in order to receive the driving force from the camera-side automatic focusing mechanism. The focusing lens group is configured to move back and forth on the optical axis by rotation, while the operating ring that is rotated during manual focusing is related to the focusing lens group via a clutch mechanism. . This clutch mechanism is configured to be mechanically connected to and disconnected from the focusing lens group by moving the manual focusing operation ring between two forward and backward positions along the lens optical axis. Therefore, when automatic focus adjustment is possible with this interchangeable lens, the manual focusing operation ring can be mechanically separated by setting the manual focusing operation ring to a predetermined position of the two positions. By reducing the load,
The automatic focus adjustment mechanism on the camera side enables smooth and easy autofocus operation. However, if the operating ring is set to one of the two positions (therefore, the operating ring and the focusing lens group are mechanically connected and manual focusing is to be performed, Since the rotating body constituting the drive transmission system during automatic focusing operation is in pressure contact with the driving member on the camera side, the following inconvenience occurs.That is, when the operating ring is turned for manual focus adjustment, the above-mentioned Since the drive mechanism and motor for automatic focus adjustment on the camera body side are also rotated via the rotating body, there is a drawback that the operation becomes difficult and a light and quick manual focusing operation is hindered. There are some interchangeable lens barrels in which the manual focusing operation member and the automatic focusing operation member are reciprocally engaged and disengaged from the mechanism; - Part 1: A tongue that moves in the direction of the optical axis and in the direction of the free 1j, machine'j: tli's i/i, mkl escape from the realm of immaturity. Purpose This invention solves the following 1??r Higashiedayama 6') drawbacks [-
1) Selection of thermal focusing method between white motion focusing and manual focusing 4R: ``It can be done non-touch, and there is no problem with operation no matter which method you use!'' 1. Or 7. Small size (
5. Characteristics of the Invention Aiming to provide an oil part that can be replaced without violating one situation, L The driven shaft is 1 on the Canola Holiday side.
The drive shaft (r-) /' is removed from the Ratuto connection company - retreats in the direction of the optical axis - and the operation link side r-, and the means for transmitting the focusing drive JJ to the optical system moving mechanism - are in the connected state. , "Mo1 of the operation link of the λ dynamic focus stopper - White from the dynamic focus operation position! 1i11 negative focus 11″f, fl・＼ sof
1 axis jj direction movement (4.), the driven shaft 116h is connected to the drive shaft, W; as it advances in the axial force direction,
・It is a lens barrel with 17 lenses that has been replaced with L7 so that the first stage of transmission of the focusing driving force of the thread moving mechanism is in the disconnected state. Embodiment Figures 1 to 4 show the first embodiment of the invention, and Figure 5 shows the interchangeable lens ←1 from the state shown in Figure 2 to a canula body. It is a figure which shows a state. Reference numerals 1 and 2 are focusing optical systems, and in the heather embodiment, they are also photographing optical systems. + (I-Lens barrel holds the focusing optical system 1゜2, and is connected to the rotating barrel 4 with a helicoid screw 5.
I'm here. 6 (+: 1, fixed cylinder, 1) III rotating cylinder, 1
I am related to Helico F Doneji 7. 8 is the lens barrel: 3 is shaped like F, 1, 2, +! In the IL gear groove, the self-propelling gear 9 fixed to the 1111 solid cylinder () was fitted into the horizontal gear 7%i 8.
1. The focusing optical system 1°2 maintains the linear movement of the light @+-, )j in the direction ifK. Then the above \1.1] (pne>;
7. Rotating barrel 1, ＼ II = I' l screw 5, self-propelling key j: l 8, straight ift, gear 0, so C7゛? Thread transfer l1
Even if it constitutes a self-propelled feeding mechanism of tl + machine drawing 4t1 6,
The fixed comb 0 is the replacement mount surface 1 (l and unmated? Y1
1 and bayonet claw 12 (with -r $, -ri, stiff 1'□))

[Construct a replacement mount I for lenses. 13Q'' is a foreign dealer, and the fixed tube 6 (fixed to the t'
1). l・1 is exchanged for camera tenon 1]・
- J) A position regulating pin that defines the same position is loosely fitted into the hole of the bearing 15 and the fixed cylinder 6, which are fixedly installed on the outer surface 13.
Teso [Shi Tsumugi, movable towards JJ, applicable IY! Placement rule 2 The tip of the bottle 14 is the (t'z---()
-- Engages and disengages from the positioning hole 55. At this point, the T-specified bottle 14 is urged in the projecting direction (J' direction in the drawing) at the appropriate time by receiving a pressure of 2+17 via the Trf moving collar 16. Reference numeral 18 denotes a specified bottle operation button, which is inserted through hole 1 () of the outer cylinder 133.
-1 and -1 as described above
Kera it, . -Move together. 2 (If, hold the tension sub IJ rec 21 with the thread 11 link shaft fixed to the outer station 1'3 and T
Yes, L2 Lisbring 21 is the specified bottle operation f'to button 1
8, the standard focus 1 is always in the protruding force direction (towards the right in the drawing) -\I.1 force. 22 is a driven shaft, and a fixed circumferential collar 23 is inserted in the middle of the driven shaft. , the collar 23 is for the driven shaft 22 to receive the biasing force of the spring 17. This circumferential collar 2;
At the position where the clutch connection with the drive shaft 58 (which will be described later) is completed, as shown in FIG. Moreover, since the thickness of the circumferential flange 23 is slightly smaller than the gap width in the optical axis direction formed by the movable flange I6 and the stepped portion of the positioning pin 14, Therefore, the driven shaft 22 can rotate smoothly without being subjected to the pressure of the spring 17 when connected to the drive shaft 58. 24 is a gear fixed to the driven shaft 22, and the gear 26 fixed to the rotating cylinder 4 The focusing driving force received by the driven shaft 22 by the gears 24 and 26 is transferred to the optical system moving mechanism (helicoid screw 7, rotating barrel 4, helicoid screw 5, linear key groove 8, linear key 9).
A first transmission means is configured to transmit the transmission to the straight forward feeding mechanism). By the way, one end (left side in the drawing) of the driven shaft 22 is pivotally supported by the bearing 15, but the other end (right side in the drawing) is loosely fitted into the inner hole of the positioning pin 14 with an appropriate fit play. ing. This is to absorb misalignment of the rotation axis due to tolerances of related parts between the interchangeable lens and the camera body. 25 is a circumferential collar provided at the rear end (left side in the drawing) of the driven shaft 22. A pawl 27 is formed at the tip of the driven shaft 22 and constitutes a clutch mechanism that connects and disconnects in the optical axis direction between the tip of a drive shaft 58 (left end on the south face) on the camera body side, which will be described later. The claw 27 is provided with a bottomed hole 28 that is to be engaged with a detection pin 61 on the camera body side, which will be described later. Reference numeral 29 denotes an operation ring for manual focusing, which is loosely fitted into the outer cylinder 13 so as to be movable both in the optical axis direction and in the rotational direction. To further explain this point, reference numeral 31 denotes a stopper pin fixedly attached to the operating ring 29, and the stopper pin 31 and both end surfaces of the circumferential groove 30 of the outer cylinder 13 regulate the position of the operating ring 29 in the optical axis direction. It consists of Reference numeral 32 and 33 denote a circumferential click groove provided in the operating ring 29, which cooperates with the click ball 34 which is urged outward by the click spring 35 on the outer cylinder 3 side to move the operating ring 29 in the optical axis direction. Define the position. In the case of the embodiment, when the click groove 33 on the left side of the drawing receives the click ball 34 (see FIG. 1), the operating ring 29 is in the automatic focusing position,
When the click groove 32 on the right side of the drawing receives the click ball 34 (see FIG. 2), the operating ring 29 is in the manual focusing operation position. Reference numeral 36 denotes an inner circumferential collar provided on the operating ring = 13-29, and when the operating ring 29 moves from the automatic focusing position to the manual focusing operating position (moves to the left in the figure), the driven shaft 22 is It engages with the circumferential collar 25 and moves it to the left in the figure, that is, the driven shaft 22 is moved backward. When the operating ring 29 is in the automatic focusing position, the inner circumferential collar 36 and the circumferential collar 25 are out of engagement. 37 is a keyway provided in the operating ring 29 in the optical axis direction (see Figures 1, 2, and 3).
(see figure). Further, 39 is an internal gear fitted to the outer cylinder 13 so as to be rotatable only, and the internal gear 39 is provided with a key 3.
8 is formed in the optical axis direction, and the key groove 37 is fitted into the key 38. The operating ring 29 is only movable in the optical axis direction relative to the key 38 in the keyway 37 . On the other hand, the internal gear 39 meshes with the gear 2414- fixed to the driven shaft 22 at the retracted position of the driven shaft 22 (see Fig. 2).
. When the operation ring 29 moves to the manual focusing operation position, the driven shaft 22 is moved together with the retracted position.
is the end position of the movement. In the embodiment described now, the keyway 37, the gear 38, the internal gear 39, the gear 24, and the gear 26 transmit the focusing driving force generated by the focusing operation of the operating ring 29 to the optical system moving mechanism. This constitutes a second transmission means. Incidentally, by using low viscosity lubricating oil or solid lubricant for the helicoidal screw 5 portion, the automatic focusing operation becomes easier. Furthermore, by using lubricating oil of appropriate viscosity in the loosely fitted portion between the outer cylinder 13 and the operating ring 29, a smooth and appropriate operating torque can be obtained during manual focusing operation. Also, outer cylinder] 3 and operation ring 2
A member for increasing friction, for example, a piece of polyacetal loaded by a spring, may be interposed in the loosely fitting portion with 9 to obtain a moderate operating force. The following 1- is the configuration of the interchangeable lens. Next, the configuration of the camera body will be explained. In Figures 1, 2, and 5, 5o is a lens mount for attaching an interchangeable lens, and has a fitting inner diameter 51, a bayonet claw 52, and an interchangeable mount surface 53 on the camera body side that corresponds to the interchangeable mount on the interchangeable lens side. Configure a replacement mount. 54 is a leaf spring, replacement mount city i1o and 53
It is a useless thing to make it stick. 55 is a positioning hole into which the positioning bottle 4 of the interchangeable lens is inserted. 56 is the front cover of the camera body, and 57 is plywood. Reference numeral 58 denotes a drive shaft, and a four part 59 is formed at its tip (left side in the drawing) that engages with the pawl 27 of the driven shaft 22 on the interchangeable lens side to constitute a meshing clutch mechanism. A gear 60 is integrally fixed to the end (right side in the drawing). The drive shaft 58 is rotatably supported by holes in the lens mount 50 and the base plate 57. Reference numeral 61 denotes a detection pin, which is loosely fitted into an axial through hole provided at the axial center of the drive shaft 58, and is connected to a movable contact piece 66 of the switch sw2 provided on the base plate 57.
It is always biased in the advancing direction (to the left in the drawing) by the spring force of the. The detection bottle 6] has a circumferential groove 63 in the middle.
By forming a small screw 62 on the drive shaft 58 into the circumferential groove 63 and engaging the tip thereof in the circumferential groove 63, the detection pin 61 can be prevented from protruding too much or falling off. It has a stopper mechanism to prevent this. The detection pin 6117- is pushed by the bottom of the bottom guide hole 28 of the driven shaft 22 when the drive shaft 58 and the driven shaft 22 are engaged in a clutch connection, and moves slightly backward in the right direction in FIG. 1, thereby causing the switch SW. Close. Also, when the clutch connection between the drive shaft 58 and the driven shaft 22 is released, the movable contact piece 66 allows itself to return 7 and moves slightly forward (to the left in the figure).
Open W. In this way, the detection pin 61 has a function of performing a switching action of the switch SW2 corresponding to the connection/disconnection of the clutch mechanism. Further, the tip of the detection pin 61 is connected to the mold 27 of the driven shaft 22.
By fitting into the bottom hole 28, it also has the function of improving the accuracy of alignment of the axes of the drive shaft 58 and the driven shaft 22. This makes it possible to achieve efficient driving force transmission without axial runout. 18-64 is a gear shaft provided on the fixed part of the camera body, and gear 6
The gear 65 that meshes with 0 is held. This gear 65 is connected to a motor M and a drive transmission mechanism (simply indicated by a broken line in FIG. 1).
are related by. SW is a switch for driving a motor, and is turned on and off in connection with a shutter release operation, for example. A motor drive control circuit 67 receives distance measurement information from a distance measurement circuit (not shown), calculates the necessary rotation amount and direction of the motor M, and controls and drives the motor M. A second embodiment is shown in FIGS. 6 and 7. Members and parts having the same reference numerals as those in the first embodiment indicate that they have the same or the same functions as the members and parts in the first embodiment. The second embodiment is an example in which, during manual focusing, the focusing driving force is transmitted from the operating ring 29 side to the optical system moving means side in a 1μ contact without passing through the gear 24 of the driven shaft 22. 101
is an outer circumference flange provided on the operation ring 29, which plays the same role as the inner circumference flange 36 of the operation link 29 in the first embodiment, and the operation ring 29 is moved from the automatic focus position to the manual focus operation position. When moving (FIG. 6 - leftward 15), it engages with the circumferential collar 25 of the driven shaft 22 (1), causing the driven shaft 22 to move backward (FIG. 1 - left Jj1). Operation ring 2
9 is in the automatic focusing position, that is, when the click ball 34 is fitted into the click groove 33 as shown in FIG. 6, the outer peripheral flange +01 and the circumferential flange 25 are out of engagement. Reference numeral 102 denotes a key shaped like a hole that projects inward from the operating link 29, and the key 102 engages and disengages from a key groove 103 provided on the outer periphery of the rotary cylinder 4 as the operating ring 29 moves. (See Figure 7). The keyway 103 is provided over the entire circumference. The key 102 and the keyway 103
is in an engaged state when the operating ring 29 is in the manual focus operating position, and in a disengaged state when the operating ring 29 is in the automatic focusing position. Next, to explain the operation, in the first embodiment of the present invention, FIG. 11 shows the automatic focusing function state (~, i.e., when the operating ring 29 is located at the most extended position,
The click groove: 33 and the click ball 34 are engaged. Now, when the motor drive control circuit 67 operates according to an instruction from the distance measuring circuit (not shown) and the motor M rotates, the motor 115 rotates, and the drive shaft 58 rotates together with the two wheels 60. This rotational force is transmitted to the driven shaft 22 on the side of the interchangeable lens 21-lens barrel by the dog clutch 27.59, and is further transmitted to the gear 2426.
(7), the rotary barrel 4 rotates.Then, with the rotation amount of 4, the linear advance mechanism 4, which is the optical system moving mechanism described above, is rotated.
, 5 , 7 , 8 , ! ] Due to the action of focusing optical system 1, 2
moves toward the optical axis/J direction. When the focus position is reached, the motor drive control circuit 67 stops the motor M in response to an instruction from the distance measuring circuit, and the focusing operation is completed. When in the automatic focusing function state, members related to the manual focusing operation ring 29,
That is, since the engagement relationship between the inner circumferential collar 36 and the internal gear is released, the operation ring 29 does not rotate during the focusing operation, and the automatic focusing operation can be performed smoothly and easily. Even if the operating ring 29 is rotated l~, the rotation will not impede the automatic focusing operation at all. When removing the interchangeable lens from the camera body, move the regulation pin operation button 18 in the direction J in all drawings against the pressure of the spring 17 and the torsion spring 21, and the position regulation pin 14 and driven shaft 22 will also move in the same direction. Move in the same -h direction by the same amount as the bottle 14 and place it in the specified hole 55 of 1a.
Since the engagement between the driven III 122 and the dog clutch between the driven III 122 and the drive shaft 58 is released, the interchangeable lens can be easily removed by turning it once. The state of the camera body after removing the interchangeable lens is as shown in Figure 5.
It is brought to the most advanced position by the spring force of -66,
The switch SW2 is in an open state, and the Mossy drive control circuit 67 is prevented from operating. Next, manual focusing operation will be explained. 1. When the operating ring 29, which is in the automatic focus position shown in FIG. Move and complete the manual focusing function a), so use the 11 operation ring 2
Manual focusing can be performed by rotating the lens to 17i1. That is, as the operating link 29 moves h7 degrees, the "C inner circumferential flange: 3 () moves the circumferential flange 25 of the driven 1f111i 22 in the same direction, so that the drive IIt 58 and the driven shaft 22 mesh with each other. Clutches 27 and 59 are released and FL is released. At the same time, the detection pin 61 is moved to the most advanced position by moving the lever of switch SW2 to the lever of switch SW2, and switch SW2 is opened to drive the motor. When the control circuit 67 is deactivated, the gear 24 moves to the left h' direction along with the left H movement of the operating ring 29 L2, and the internal tooth r
i: 3 (meshes with 1. This is the state in Figure 2. When the next operation link 21) is moved simultaneously, the key l'jlj
Rotation is transmitted from ξ- to which 37 and key 38 are connected to internal tooth +1 (39), and the rotation is transmitted through the gear 24 meshing with the gear 39 to the linear feeding mechanism 1, 5, 7, 8. During operation, there is no focusing movement of the focusing optical systems 1 and 2. At this time, since the dog clutch 27 + 541 connected to the drive shaft 58 on the camera body side is released, the members of the camera body fil cannot be driven. Therefore, the manual focusing operation is extremely smooth (although it can be performed very smoothly, and noise may also occur).Of course, the dog clutch 27
+59 has been canceled, so there is no need to fully restrict the deceleration method on the camera side. -) J, (~) The engagement of the γ positioning pin 1 with the positioning hole 51j is carried out by the spring 2.
This is evidenced by 1. Next, the operation of the second embodiment shown in FIGS. 61 and 7 will be explained. In this example, when manually focusing on the U-gun, -25
- Only the method of transmitting the focusing drive force 4σ1 to the linear advance mechanism 4, 5, 7, 8.9 in b.
1 is the same as in the first embodiment. That is, when the operating link 29 is pulled out from the automatic focusing function state shown in FIG. Move to the left (backward Jj direction) [7, At the same time as the dog clutch 27.59 is released, the operating link 25) key l (12 is engaged in the keyway 10 of the rotating sieve 4; 1 manual focusing The operation becomes rl function.This fl enables operation ring 2.
The focusing driving force by the manual operation of 9 is transmitted to the jffff forward feeding mechanisms 4, 5, 7, 8.9. Note that during manual focusing, the rotational force of the manual focusing drive is not transmitted to the camera body, and the switch S'JJ2 is in the open state, as in the first embodiment. 25- In addition, in the above first and second embodiments, the position regulating pin 14
is on the interchangeable lens side, but the positioning hole 55
may be provided on the interchangeable lens side, and the position specifying pin 14, the specifying pin operation button 18, and the torsion spring 21 may be provided on the camera body side. In this case, the circumferential flange 25 may be provided at two locations so as to sandwich the inner periphery flange 26 from both sides, and the movable flange 16 and spring 17 may be omitted. Further, in the embodiment, the driving force transmission related member 22 is arranged in the position regulation related member 14, but it is also possible to arrange the driving force transmission related member 22 at a different position near the position regulation related member 14. It can also be done. Further, in the embodiment, the gear 24 is shown to mesh directly with the gear 26, but it may be possible to use a gear train to change the rotational speed ratio or direction of rotation according to the characteristics of each interchangeable lens, or to mesh it from an interchangeable mount. When the distance to the moving mechanism of the focusing optical system is far away, it is also possible to use various power relay members. Furthermore, although gears, keys, and keyways are used to transmit the focusing rotational force, frictional transmission may also be used. Furthermore, by varying the depth of the bottom hole 28 of the driven shaft 22, the type signal of the interchangeable lens,
For example, it is also possible to provide a signal such as the open aperture F number or focal length so that the camera body can use it. Furthermore, although a linear advancing mechanism is shown as an example of an optical system moving mechanism, other means such as a rotary advancing mechanism often used in zoom lenses, a means for focusing the rear lens of the optical system by rotating a cam barrel, etc. are also possible. . Further, in the embodiment, the gear 24 on the driven shaft 22 side, which is the first transmission means, and the gear 26 on the rotary cylinder 4 side are always in mesh with each other, but in the case of the second embodiment, the second transmission means 102, 10
3 is the operation ring 29 side and the optical system moving mechanism 4, 5, 7, 8
．． Since the first transmission means 24 and 26 are directly connected on the 9 side, the first transmission means 24 and 26 may be engaged and disengaged in synchronization with the engagement and disengagement of the clutch mechanisms 27 and 59. In this case, the driven shaft 22 also does not rotate during manual focusing, making it easier to focus. Effects According to the present invention, there is provided a driven shaft having a clutch mechanism that connects and disconnects in the optical axis direction between the drive shaft on the camera body side, and a driven shaft that transmits the focusing driving force received by the driven shaft to the optical system moving mechanism. 1
in the optical axis direction of the operating ring -29 −. Since the clutch mechanism and at least the clutch mechanism of the first transmission means and the second transmission means are selectively connected and disconnected by the movement, in the automatic focusing state, the member on the operating ring side is It is completely disengaged from both the system moving mechanism side member and the driven shaft side member, so that the automatic focusing operation is light and smooth, and requires less driving energy. Furthermore, even in the manual focusing state, the locking with the drive shaft on the camera body side is released at least a little, so manual focusing operations can be performed smoothly and there is no noise generated from the camera body side during manual focusing operations. Nor. In addition, switching between manual focusing and automatic focusing requires only a simple movement of the operating ring in the optical axis direction, and the clutch mechanism is also connected and disconnected in the optical axis direction at this time, so the operation is extremely simple and easy. It is reliable and mechanically adaptable to miniaturization of cameras.

[Brief explanation of drawings]

FIG. 1 is a sectional view of a main part of the first embodiment, showing a case where an interchangeable lens is attached to a camera body L and the interchangeable lens is in an automatic focusing function state. FIG. 2 is a sectional view of the main part of the first embodiment, showing the case where the interchangeable lens is in a manual focusing function state. 3 shows a sectional view taken along line AA in FIG. 1, and FIG. 4 shows a sectional view taken along line BB in FIG. Fig. 5 is a sectional view showing only the camera body with the interchangeable lens removed, and Fig. 6 is a sectional view of the main part of the second embodiment, with the interchangeable lens attached to the camera body and the interchangeable lens autofocusing. Indicates a functional state. FIG. 7 is a sectional view taken along the line CC in FIG. 6. 1. 2. Focusing optical system, 4. Rotating tube, 5. Helicoid screw, 7. Helicoid screw, 8. Straight keyway, 9.
- Straight key, 22... Driven shaft, 24... Gear, 26...
・Gear, 27・・Claw, 29 Operating ring, 37・Keyway, 38・・Key, 39・・Internal gear, 58・・Drive shaft, 59・47-karat gold [;, 102・・・・Key, 103・Keyway, 4.5, 7, 8.9 ・Optical system movement mechanism, 27.
59... Clutch mechanism, 24.26... First transmission means, 37.38, 39, 24.26 and 102, 103
...Second means of communication applicant Minolta Camera Co., Ltd. agent Goho - Keiji 51 - Kan 1 Figure 3 Figure 4 Hum

Claims (5)

[Claims] (1) A focusing optical system, an optical system moving mechanism that moves the focusing optical system, a driven shaft that has a clutch mechanism that connects and disconnects in the optical axis direction with the drive shaft on the camera body side, and the driven shaft a first transmission means for transmitting a focusing driving force to the optical system moving mechanism; a manual focusing control ring; a second transmitting means for transmitting a focusing driving force generated by a focusing operation of the operating ring to the optical system moving mechanism; An interchangeable lens barrel having a transmission means, wherein movement of the operation ring in the optical axis direction causes transmission in at least one of the first transmission means, such as the clutch mechanism, and the second transmission means. Interchangeable lens barrel capable of switching between manual focusing and automatic focusing, characterized by selective connection/disconnection (2) The driven shaft can move forward and backward in the 6-axis direction, and is always urged in the advancing direction, and when the operating ring is moved in the optical axis direction to the manual focusing operation position, the driven shaft is moved backward and the clutch is moved back and forth. A lens barrel of an interchangeable lens capable of switching between manual focusing and automatic focusing according to claim 1, wherein the mechanism is disconnected and the second transmission means is connected. (3) Transmission by the first transmission means is carried out directly with the member on the driven shaft side and the part on the optical system moving means side constantly connected, and transmission by the second transmission means is carried out directly by the operating ring. A lens barrel of an interchangeable lens in which manual focusing and automatic focusing can be switched from the side via a member on the driven shaft side according to claim 1 or 2. (4) Transmission by the first transmission means is carried out directly with the member on the driven shaft side and the member on the optical system moving means side always in a connected state, and the transmission by the second transmission means is carried out directly from the operating ring side. A lens barrel of an interchangeable lens capable of switching between manual focusing and automatic focusing according to claim 1 or 2, which is performed directly to the optical system moving means side. (5) The first transmission means is connected and disconnected as the clutch mechanism is connected and disconnected, and the transmission by the second transmission means is performed directly from the operating ring side to the optical system moving means side, or Interchangeable lens barrel that can be switched between manual focusing and automatic focusing as described in Section 2