Rubber plug slide

Abstract

The present invention provides a plug slide, comprising: a slide body, a connecting rod, a rotating shaft, a first positioning member, and a second positioning member; the slide body is arranged between a plug cleaning tank and a filling machine; one end of the connecting rod is connected to the slide body; the rotating shaft is pivotally connected to one end of the connecting rod away from the slide body; when both ends of the slide body are simultaneously connected to the plug cleaning tank and the filling machine, the first positioning member is magnetically connected to the end of the connecting rod; when the end of the slide body is disconnected from the plug cleaning tank and / or the filling machine, the second positioning member is magnetically connected to the end of the connecting rod. In the present invention, the magnetic connection between the rotatable connecting rod and the two positioning members is utilized to realize the switching between the use state and the non-use state of the plug slide, thereby facilitating installation and operation.

Description

Technical Field

[0001] The present invention relates to the technical field of pharmaceutical production equipment, in particular to a rubber stopper slideway. Background Art

[0002] The stopper slide is the channel for the stoppers to be transferred from the stopper cleaning tank to the stopper hopper on the filling machine.

[0003] Currently, before the stopper cleaning tank is docked with the filling machine, the filling machine must remain sealed. During docking, the caps on the stopper cleaning tank and the filling machine must be opened through the glove box. Then, the handle must be grasped through the glove box to forcefully push the stopper slide upward. The rollers on the stopper slide slide along the L-shaped track to the uppermost position, where the latch is secured. The two ends of the stopper slide are respectively docked with the cleaning tank opening of the stopper cleaning tank and the hopper of the filling machine. After the stopper emerges from the cleaning tank opening of the stopper cleaning tank, it slides down the stopper slide into the filling machine hopper. After production is completed, the ball bar must be grasped through the glove box and the latch must be forcefully pulled out of the position. The rollers of the stopper slide pass over the track, returning the slide to its original position. However, since the rubber plug slide is heavy and the track is curved upward, it is inconvenient to push the slide upward because the operation must be performed through the glove box, and the force required is relatively large. When the bayonet is pulled out after production is completed, the bayonet is pushed into position by a spring, so the club needs to be pulled hard to compress the spring to pull out the bayonet, which requires a large force and is inconvenient to operate. Summary of the Invention

[0004] Based on this, it is necessary to provide a rubber plug slideway to solve the problem that the rubber plug slideway is inconvenient to install.

[0005] As one aspect of the present invention, a rubber plug slide is provided, comprising:

[0006] A slide body, which is arranged between the stopper cleaning tank and the filling machine;

[0007] a connecting rod portion, one end of which is connected to the slide body;

[0008] a rotating shaft, the rotating shaft being pivotally connected to an end of the connecting rod portion away from the slide body;

[0009] a first positioning member, which is magnetically connected to an end of the connecting rod portion when both ends of the slide body are connected to the stopper cleaning tank and the filling machine; and

[0010] The second positioning member is magnetically connected to the end of the connecting rod when the end of the slide body is disconnected from the stopper cleaning tank and / or the filling machine.

[0011] In one embodiment, the end of the connecting rod away from the slide body rotates around the rotation axis, and when both ends of the slide body are simultaneously connected to the stopper cleaning tank and the filling machine, the first positioning member is magnetically connected to the end of the connecting rod away from the slide body; or

[0012] The end of the connecting rod away from the slide body rotates around the rotating shaft, and when the end of the slide body is disconnected from the stopper cleaning tank and / or the filling machine, the second positioning member is magnetically connected to the end of the connecting rod away from the slide body.

[0013] In one embodiment, the connecting rod portion includes:

[0014] A first connecting rod, one end of the first connecting rod is connected to the slide body, and one end of the first connecting rod away from the slide body is coaxially connected to the rotating shaft.

[0015] In one embodiment, when both ends of the slide body are connected to the stopper cleaning tank and the filling machine at the same time, the first positioning member is magnetically connected to the end of the first connecting rod away from the slide body; or

[0016] When the end of the slide body is disconnected from the stopper cleaning tank and / or the filling machine, the second positioning member is magnetically connected to the end of the first connecting rod away from the slide body.

[0017] In one embodiment, the connecting rod portion includes:

[0018] a second connecting rod, one end of which is coaxially connected to an end of the first connecting rod away from the slide body and the rotating shaft;

[0019] When both ends of the slide body are connected to the stopper cleaning tank and the filling machine at the same time, the first positioning member is magnetically connected to the end of the second connecting rod away from the first connecting rod; or

[0020] When the end of the slide body is disconnected from the stopper cleaning tank and / or the filling machine, the second positioning member is magnetically connected to the end of the second connecting rod away from the first connecting rod.

[0021] In one embodiment, the connecting rod portion further includes:

[0022] A connecting ear plate, one end of which is connected to an end of the first connecting rod close to the slide body, and an end of the connecting ear plate away from the first connecting rod is connected to the outer wall of the slide body.

[0023] In one embodiment, it further includes:

[0024] The first positioning member and the second positioning member are connected to the inner wall of the shell; the rotating shaft is rotatably connected to the shell; and an opening section is provided on the shell along the movement path of the connecting rod.

[0025] In one embodiment, the first positioning member and the second positioning member are both mounted on the outer wall of the slide body;

[0026] The end of the connecting rod away from the slide body rotates around the rotation axis, and when both ends of the slide body are simultaneously connected to the stopper cleaning tank and the filling machine, the first positioning member is magnetically connected to the end of the connecting rod close to the slide body; or

[0027] The end of the connecting rod away from the slide body rotates around the rotating shaft, and when the end of the slide body is disconnected from the stopper cleaning tank and / or the filling machine, the second positioning member is magnetically connected to the end of the connecting rod close to the slide body.

[0028] In one embodiment, the first positioning member and the second positioning member are distributed along the axis on the outer wall of the slide body.

[0029] In one embodiment, it further includes:

[0030] a rotating electric machine, the output shaft of the rotating electric machine being coaxially connected to the rotating shaft; and

[0031] The rotation angle sensor is sleeved on the rotating shaft; the rotation angle sensor is configured to monitor the rotation angle of the rotating shaft.

[0032] In the present invention, the magnetic connection between the rotatable connecting rod and the two positioning members is utilized to realize the switching between the use state and the non-use state of the rubber plug slide, thereby facilitating installation and operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] Figure 1 A schematic structural diagram of a rubber plug slideway in a first positioning state according to an embodiment of the present invention is shown.

[0034] Figure 2 A schematic structural diagram of the rubber plug slideway in a second positioning state according to an embodiment of the present invention is shown.

[0035] Figure 3 The figure shows a schematic diagram of the three-dimensional structure of the rubber plug slideway in a first positioning state according to an embodiment of the present invention.

[0036] Figure 4A schematic diagram of the three-dimensional structure of the rubber plug slideway in the second positioning state in one embodiment of the present invention is shown from another angle.

[0037] Figure Number:

[0038] 10- slide body;

[0039] 11- inlet end of the slide body;

[0040] 12- slide body outlet end;

[0041] 20-connecting rod;

[0042] 21- first connecting rod;

[0043] 22-second connecting rod;

[0044] 23-Connecting ear plate;

[0045] 30-rotation axis;

[0046] 40-first positioning member;

[0047] 50- second positioning member;

[0048] 60-housing;

[0049] 61-Opening section. DETAILED DESCRIPTION

[0050] To make the above-mentioned objects, features, and advantages of the present invention more readily apparent, specific embodiments of the present invention are described in detail below with reference to the accompanying drawings. The following description sets forth numerous specific details to facilitate a full understanding of the present invention. However, the present invention can be implemented in many other ways than those described herein, and those skilled in the art may make similar modifications without departing from the scope of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0051] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0052] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0053] In the present invention, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, or indirect connection through an intermediate medium; internal communication between two components, or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0054] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0055] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only implementation methods.

[0056] Figure 1 A schematic structural diagram of a rubber plug slideway in a first positioning state according to an embodiment of the present invention is shown. Figure 2 A schematic structural diagram of the rubber plug slideway in a second positioning state according to an embodiment of the present invention is shown. Figure 3 The figure shows a schematic diagram of the three-dimensional structure of the rubber plug slideway in a first positioning state according to an embodiment of the present invention. Figure 4A schematic diagram of the three-dimensional structure of the stopper slide in the second positioning state, viewed from another angle, according to one embodiment of the present invention is shown. For greater clarity, the first positioning state shown in the figure represents a state in which both ends of the slide body are connected to the stopper cleaning tank and the filling machine. The second positioning state shown in the figure represents a state in which the ends of the slide body are disconnected from the stopper cleaning tank and / or the filling machine.

[0057] See Figures 1 to 4 An embodiment of the present invention provides a rubber plug slide, including: a slide body 10, a connecting rod portion 20, a rotating shaft 30, a first positioning member 40 and a second positioning member 50.

[0058] The slide body 10 is arranged between the stopper cleaning tank and the filling machine; one end of the connecting rod portion 20 is connected to the slide body 10; and the rotating shaft 30 is pivotally connected to the end of the connecting rod portion 20 away from the slide body 10. When the slide body inlet end 11 of the slide body 10 is connected to the stopper cleaning tank and the slide body outlet end 12 of the slide body 10 is also connected to the filling machine, the first positioning member 40 is magnetically connected to the end of the connecting rod portion 20, and the stopper can be transferred from the stopper cleaning tank to the filling machine through the stopper slide. After the stopper transfer is completed, the connecting rod portion 20 and the first positioning member 40 are disconnected from the magnetic connection, and the connecting rod portion 20 rotates around the rotating shaft 30 until it is magnetically connected to the second positioning member 50, so that the end of the slide body 10 is disconnected from either the stopper cleaning tank or the filling machine, or the end of the slide body 10 is disconnected from both the stopper cleaning tank and the filling machine.

[0059] What needs to be explained about the magnetic connection is that the first positioning member 40 and the second positioning member 50 can be magnets, and an iron sheet is set at the position on the connecting rod portion 20 that is magnetically connected to the first positioning member 40 and the second positioning member 50. Optionally, the first positioning member 40 and the second positioning member 50 can be iron sheets, and a magnet can be set at the position on the connecting rod portion 20 that is magnetically connected to the first positioning member 40 and the second positioning member 50. The magnet involved here can also be an electromagnet, and the magnetic connection between the electromagnet and the target position is achieved by powering on and off the electromagnet. Among them, both the magnet and the iron sheet can be selected to have a multi-layer structure or increase the thickness to improve the stability of the magnetic connection.

[0060] The tube wall structure of the slide body 10 can be a porous design as shown in the figure, or a non-porous design, so that the overall structure of the slide body 10 is smooth and flat and easy to clean.

[0061] This embodiment provides a magnetic connection between the rotatable connecting rod and the positioning member, which has a simple structure and is easy to install, and is convenient to operate when switching between different usage states of the rubber plug slide.

[0062] In one embodiment of the present invention, the first positioning member 40 and the second positioning member 50 are arranged at an end of the connecting rod portion 20 away from the slide body 10 .

[0063] Specifically, the end of the connecting rod portion 20 away from the slide body 10 rotates around the rotation axis 30, and reaches the first positioning state when both ends of the slide body 10 are simultaneously connected to the stopper cleaning tank and the filling machine. The first positioning member 40 is magnetically connected to the end of the connecting rod portion 20 away from the slide body 10. The initial state of switching from the first positioning state to the second positioning state can be triggered by pushing the slide body 10 with an external force. For example, in the first positioning state, the slide body 10 is gently pushed by hand in the direction of the second positioning state. In the process of switching from the first positioning state to the second positioning state, the end of the connecting rod portion 20 away from the slide body 10 continues to rotate around the rotation axis 30, and when the end of the slide body 10 is disconnected from the stopper cleaning tank and / or the filling machine, the second positioning member 50 is magnetically connected to the end of the connecting rod portion 20 away from the slide body 10.

[0064] Since the connecting rod portion 20 rotates between the first positioning member 40 and the second positioning member 50, the rotation direction of the connecting rod portion 20 during the process of switching from the first positioning state to the second positioning state should be opposite to the rotation direction of the connecting rod portion 20 during the process of switching from the second positioning state to the first positioning state.

[0065] For example, the connecting rod portion 20 rotates counterclockwise during the process of switching from the first positioning state to the second positioning state; and the connecting rod portion 20 rotates clockwise during the process of switching from the second positioning state to the first positioning state, as shown in the accompanying drawings.

[0066] In one embodiment of the present invention, the connecting rod portion 20 may include only one first connecting rod 21 .

[0067] One end of the first connecting rod 21 is connected to the slide body 10 , and one end of the first connecting rod 21 away from the slide body 10 is coaxially connected to the rotating shaft 30 .

[0068] In this embodiment, the end of the first connecting rod 21 closest to the slide body 10 is connected to the slide body. The end of the first connecting rod 21 remote from the slide body 10 is pivotally connected to the rotation axis 30. When the end of the first connecting rod 21 remote from the slide body 10 rotates around the rotation axis 30 to a first positioning state, the first connecting rod 21 is directly magnetically connected to the first positioning member 40. During the process of switching from the first positioning state to the second positioning state, the end of the first connecting rod 21 remote from the slide body 10 continues to rotate around the rotation axis 30 until reaching the second positioning state, at which point the first connecting rod 21 is magnetically connected to the second positioning member 50.

[0069] Regarding the connection between the end of the first connecting rod 21 close to the slide body 10 and the slide body, in an optional embodiment, the end of the first connecting rod 21 close to the slide body 10 can be connected to the connecting ear plate 23 provided on the outer wall of the slide body. Such an arrangement is more convenient for assembly and also convenient for local maintenance of the device in the later stage. Generally, during the switching between the two positioning states, there is no relative rotation between the first connecting rod 21 and the slide body 10. The angle between the central axis of the first connecting rod 21 and the central axis of the slide body 10 is pre-set and can also be adjusted in advance. Of course, the end of the first connecting rod 21 close to the slide body 10 can also be directly fixedly connected to the slide body (for example, welded connection, etc.), which will not be specifically limited or exemplified here.

[0070] In one embodiment of the present invention, the connecting rod portion 20 may include a first connecting rod 21 and a second connecting rod 22 .

[0071] One end of the first connecting rod 21 is connected to the slide body 10, and the end of the first connecting rod 21 away from the slide body 10 is coaxially connected to the rotating shaft 30. One end of the second connecting rod 22 is coaxially connected to both the end of the first connecting rod 21 away from the slide body 10 and the rotating shaft 30. The first connecting rod 21 and the second connecting rod 22 rotate together with the rotating shaft 30. When the end of the first connecting rod 21 away from the slide body 10 rotates around the rotating shaft 30 to the first positioning state, the end of the second connecting rod 22 away from the first connecting rod 21 is magnetically connected to the first positioning member 40. In the process of switching from the first positioning state to the second positioning state, the first connecting rod 21 and the second connecting rod 22 continue to rotate together with the rotating shaft 30 until they reach the second positioning state, at which time the second connecting rod 22 is magnetically connected to the second positioning member 50.

[0072] Optionally, an angle is set between the first connecting rod 21 and the second connecting rod 22 to reduce the rotation angle of the connecting rod portion 20 around the rotation axis 30. The angle is set between the first connecting rod 21 and the second connecting rod 22, which remains unchanged during the switching between the two positioning states, but can be pre-set and adjusted.

[0073] The lengths of the first connecting rod 21 and the second connecting rod 22 are not specifically limited. For example, the length of the second connecting rod 22 is less than the length of the first connecting rod 21, as shown in the drawings. Other forms that can be implemented by those skilled in the art and not shown in the drawings may also be used, and are not listed here one by one.

[0074] The connection between the end of the first connecting rod 21 close to the slide body 10 and the slide body is consistent with the above embodiment and will not be repeated here.

[0075] In one embodiment of the present invention, the device further includes a housing 60 .

[0076] The housing 60 is used to mount the rotating shaft 30, the first positioning member 40, and the second positioning member 50. The housing 60 also encloses the rotating shaft 30 and the end of the connecting rod connected to the rotating shaft 30 that is away from the slide body 10. The housing 60 has an opening along the motion path of the connecting rod 20 to facilitate movement of the connecting rod 20. The housing 60 encloses the rotating shaft 30, the first positioning member 40, and the second positioning member 50, providing dust protection for each component. The housing 60 can be made of stainless steel, which is easy to clean and prevents the accumulation of dust in sanitary corners.

[0077] The installation of the rotating shaft 30, the first positioning member 40, and the second positioning member 50 is not limited to the embodiment in which the first positioning member 40 and the second positioning member 50 are connected to the inner wall of the housing 60, and the rotating shaft 30 is rotatably connected to the housing 60. The rotating shaft 30, the first positioning member 40, and the second positioning member 50 can also be installed on a positioning plate, a base, or other structure, which is not specifically limited here.

[0078] In one embodiment of the present invention, the first positioning member 40 and the second positioning member 50 are arranged at one end of the connecting rod portion 20 close to the slide body 10. Specifically, the first positioning member 40 and the second positioning member 50 are both mounted on the outer wall of the slide body 10. The first positioning member 40 and the second positioning member 50 are distributed along the axis of the outer wall of the slide body 10.

[0079] The end of the connecting rod portion 20 away from the slide body 10 rotates around the rotating shaft 30, causing the end of the connecting rod portion 20 close to the slide body 10 to move between the first positioning member 40 and the second positioning member 50. When the end of the connecting rod portion 20 close to the slide body 10 abuts against the first positioning member 40 and is magnetically connected to the first positioning member 40, it reaches the first positioning state. At this time, both ends of the slide body 10 are connected to the stopper cleaning tank and the filling machine at the same time. In the process of switching from the first positioning state to the second positioning state, the end of the connecting rod portion 20 close to the slide body 10 is disconnected from the first positioning member 40, and the end of the connecting rod portion 20 away from the slide body 10 continues to rotate around the rotating shaft 30 until the end of the connecting rod portion 20 close to the slide body 10 abuts against the second positioning member 50 to reach the second positioning state.

[0080] Generally, in this embodiment, the connecting rod portion 20 may only have one connecting rod.

[0081] In one embodiment of the present invention, a rotating motor and a rotation angle sensor are also included. The output shaft of the rotating motor is coaxially connected to the rotating shaft 30. The rotation angle sensor is mounted between the rotating shaft 30 and the end of the connecting rod 20 that is distal from the slide body 10. The rotation angle sensor is configured to monitor the rotation angle of the end of the connecting rod 20 distal from the slide body 10. When the rotating shaft 30 rotates to a preset angle, the rotating motor stops and the positioning member is energized, achieving automated control.

[0082] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0083] The above-described embodiments merely illustrate several implementations of the present invention, and while their descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that a person skilled in the art would be able to make numerous variations and improvements without departing from the spirit of the present invention, all of which fall within the scope of protection of the present invention. Therefore, the scope of protection of the patent for this invention shall be determined by the appended claims.

Claims

1. A rubber plug slide, characterized in that: include: A slide body (10), the slide body (10) being arranged between the stopper cleaning tank and the filling machine; A connecting rod portion (20), one end of which is connected to the slideway body (10); the connecting rod portion (20) comprises: a first connecting rod (21), one end of the first connecting rod (21) being connected to the slide body (10), and one end of the first connecting rod (21) being away from the slide body (10) being coaxially connected to the rotating shaft (30); a second connecting rod (22), one end of which is coaxially connected to an end of the first connecting rod (21) away from the slide body (10) and the rotating shaft (30); an angle is set between the first connecting rod (21) and the second connecting rod (22); a rotating shaft (30), the rotating shaft (30) being pivotally connected to an end of the connecting rod portion (20) away from the slideway body (10); a first positioning member (40) which is magnetically connected to an end of the second connecting rod (22) away from the first connecting rod (21) when both ends of the slideway body (10) are simultaneously connected to the stopper cleaning tank and the filling machine; and The second positioning member (50) is magnetically connected to an end of the second connecting rod (22) away from the first connecting rod (21) when the end of the slide body (10) is disconnected from the stopper cleaning tank and / or the filling machine.

2. The rubber plug slideway according to claim 1, characterized in that: The first positioning member (40) and the second positioning member (50) include magnets or electromagnets; An iron sheet is provided on the connecting rod portion (20) at a position magnetically connected to the first positioning member (40) and the second positioning member (50).

3. The rubber plug slideway according to claim 1, characterized in that: One end of the first connecting rod (21) close to the slide body (10) is fixedly connected to the slide body (10).

4. The rubber plug slideway according to claim 1, characterized in that: The length of the second connecting rod (22) is smaller than the length of the first connecting rod (21).

5. The rubber plug slideway according to claim 1, characterized in that: The connecting rod portion (20) further includes: A connecting ear plate (23) is provided, wherein one end of the connecting ear plate (23) is connected to an end of the first connecting rod (21) close to the slide body (10), and one end of the connecting ear plate (23) away from the first connecting rod (21) is connected to the outer wall of the slide body (10).

6. The rubber plug slideway according to claim 1, characterized in that: Also includes: The housing (60) comprises the first positioning member (40) and the second positioning member (50) connected to the inner wall of the housing (60); the rotating shaft (30) is rotatably connected to the housing (60); and an opening section is provided on the housing (60) along the movement path of the connecting rod portion (20).

7. The rubber plug slideway according to claim 1, characterized in that: The first positioning member (40) and the second positioning member (50) are both mounted on the outer wall of the slide body (10); The end of the connecting rod (20) away from the slide body (10) rotates around the rotating shaft (30), and when both ends of the slide body (10) are simultaneously connected to the stopper cleaning tank and the filling machine, the first positioning member (40) is magnetically connected to the end of the connecting rod (20) close to the slide body (10); or The end of the connecting rod portion (20) away from the slide body (10) rotates around the rotating shaft (30), and when the end of the slide body (10) is disconnected from the stopper cleaning tank and / or the filling machine, the second positioning member (50) is magnetically connected to the end of the connecting rod portion (20) close to the slide body (10).

8. The rubber plug slideway according to claim 7, characterized in that: The first positioning member (40) and the second positioning member (50) are distributed along an axis on the outer wall of the slideway body (10).

9. The rubber plug slideway according to any one of claims 1 to 8, characterized in that: Also includes: A rotating motor, wherein the output shaft of the rotating motor is coaxially connected to the rotating shaft (30); as well as A rotation angle sensor is sleeved on the rotating shaft (30); the rotation angle sensor is configured to monitor the rotation angle of the rotating shaft (30).

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