Vibratory conveyor system for syringe plungers

Abstract

A track (12) for a vibratory motion conveyor system having a length configured to support a plurality of syringe plungers (20a), each of the plurality of syringe plungers (20a) having a top (33), a bottom (1) and a contact feature (23) located between the top and bottom of the syringe plunger. The track (12) includes a first shoulder portion (16) extending along the length of the track (12) and having a first bearing surface defining a first inner edge, and a second shoulder portion (18) extending along the length of the track and having a second bearing surface defining a second inner edge. The first inner edge and the second inner edge are disposed opposite one another such that the first bearing surface and the second bearing surface are configured to support the contact feature of each syringe plunger (20a) and a portion of each syringe plunger passes between the first inner edge and the second inner edge of the first bearing surface and the second bearing surface, respectively.

Description

Technical Field

[0001] Cross - Reference to Related Applications This application claims the benefit of Provisional Application No. 63 / 223,159, filed Jul. 19, 2021, which is hereby incorporated by reference in its entirety for all purposes.

[0002] Field The present disclosure generally relates to devices, systems, and methods that use vibrating tracks for transporting materials such as syringe plungers.

Background Art

[0003] Background Vibratory feed systems are known techniques for moving components within a vibratory bowl or linear track, including those described in U.S. Patent No. 8,733,539 to Choy et al. Such systems can include a vibratory feed bowl and a linear vibratory feed track with two motors for driving the movement of the vibratory feed bowl and the linear feed track. The linear feed track can include a horizontal base and two sides that together form a U - shaped track. As one example, U.S. Patent No. 5,131,525 to Musschoot discloses a vibratory conveyor system for driving components in a material - conveying trough by vibratory motion. Musschoot's trough has been shown to be U - shaped in some examples and rectangular in other examples, and the trough has two sides, a bottom, and a top that enclose the track.

[0004] Regarding certain uses of such systems, it is known to use a vibrating track to transport syringe plungers. For example, Hutem of Seoul, South Korea, offers a vibrating track system in the form of its HFS - 4000 product, which includes one or more vibrating tracks having a U - shape.

Summary of the Invention

[0005] Summary According to the first example ("Example 1"), a track for a vibrating conveyor system has a length configured to support a plurality of syringe plungers, each syringe plunger having a top, a bottom and a contact mechanism, the contact mechanism being optionally a periphery rib mechanism, and the contact mechanism being located between the top and bottom of the syringe plunger. The track further includes a first shoulder portion extending along the length of the track, the first shoulder portion having a first support surface defining a first inner edge, and a second shoulder portion extending along the length of the track opposite to the first shoulder portion, the second shoulder portion having a second support surface defining a second inner edge. The first and second inner edges are positioned opposite each other, and as a result, the first and second support surfaces are configured to support the contact mechanism of each syringe plunger, and a portion of each syringe plunger passes between the first and second inner edges of the first and second support surfaces, respectively.

[0006] According to the second example ("Example 2"), the track of Example 1 includes a base portion having a bottom, a first side portion extending from the bottom, and a second side portion extending from the bottom, wherein the second side portion is located opposite the first side portion, and further, the first shoulder portion is located at the top of the first side portion, and the second shoulder portion is located at the top of the second side portion.

[0007] According to the third example ("Example 3"), the track of Example 2 includes a base portion that is U-shaped, with a first side and a second side extending perpendicularly from the bottom of the base portion.

[0008] According to the fourth example ("Example 4"), the track of Example 2 or Example 3 includes the first inner edge and the second inner edge of the first shoulder portion and the second shoulder portion being aligned with the first side and the second side of the base portion.

[0009] According to the fifth example ("Example 5"), the track of Example 2 or Example 3 includes the first inner edge and second inner edge of the first shoulder portion and the second shoulder portion extending inward from the first side and second side of the base portion, thereby defining a width that is narrowed with respect to the width between the first side and the second side of the base portion.

[0010] According to the sixth example ("Example 6"), the track of Example 4 further includes the first inner edge and the second inner edge of the first shoulder portion and the second shoulder portion being spaced apart from each other such that they define a width smaller than the maximum outer diameter of each syringe plunger of the plurality of syringe plungers.

[0011] According to the seventh example ("Example 7"), the vibrating conveyor system includes a vibration frequency generator and a track operably coupled to the vibration frequency generator. The track has a length configured to support a plurality of syringe plungers, each of the plurality of syringe plungers having a bottom and a contact mechanism, optionally a periphery rib mechanism. The track further includes a first shoulder portion extending along the length of the track, the first shoulder portion having a first support surface defining a first inner edge, and a second shoulder portion extending along the length of the track on the opposite side of the first shoulder portion, the second shoulder portion having a second support surface defining a second inner edge. The first inner edge and the second inner edge are positioned opposite each other, and as a result, the first support surface and the second support surface are configured to support the contact mechanism of each syringe plunger, a portion of each syringe plunger passes between the first inner edge and the second inner edge of the first support surface and the second support surface, respectively, and the bottom of each syringe plunger does not come into contact with the track.

[0012] According to the eighth example ("Example 8"), the system of Example 7 includes a base portion having a bottom, a first side portion extending from the bottom, and a second side portion extending from the bottom, wherein the second side portion is opposite to the first side portion, and further, the first shoulder portion is located at the top of the first side portion, and the second shoulder portion is located at the top of the second side portion.

[0013] According to the ninth example ("Example 9"), the system of Example 8 further includes the base portion being U-shaped, with the first and second sides extending perpendicularly from the bottom.

[0014] According to the tenth example ("Example 10"), any system of Examples 7-9 further includes the fact that the vibration frequency generator is operable to apply vibration frequencies between 1 and 180 Hz.

[0015] According to the eleventh example ("Example 11"), a method for transporting a plurality of syringe plungers using a vibrating conveyor system includes supplying the plurality of syringe plungers into a track operably coupled to a vibration frequency generator, wherein each syringe plunger of the plurality of syringe plungers has a contact mechanism, optionally a periphery rib mechanism, and the track has a first shoulder portion extending along the track and a second shoulder portion extending along the track on the opposite side of the first shoulder portion, with each syringe plunger extending between the first and second inner edges of the first and second support surfaces, respectively, and supporting the respective contact mechanisms of the plurality of syringe plungers with the first support surface of the first shoulder portion and the second support surface of the second shoulder portion, such that the bottom of each syringe plunger does not come into contact with the track. The method further includes vibrating the track with the vibration frequency generator so that the plurality of syringe plungers move along the track.

[0016] According to the twelfth example ("Example 12"), the method of Example 11 further includes the track being vibrated at frequencies between 1 and 180 Hz.

[0017] According to the thirteenth example ("Example 13"), the method of Example 11 or Example 12 further includes the fact that the surrounding rib mechanism of each of the plurality of syringe plungers corresponds to the maximum outer diameter of each of the plurality of syringe plungers.

[0018] According to the fourteenth example ("Example 14"), any of the methods in Examples 11 to 13 further includes ensuring that each of the plurality of syringe plungers does not contain silicone oil.

[0019] According to the fifteenth example ("Example 15"), any one of Examples 11 to 14 further includes a base portion having a bottom, a first side extending from the bottom, and a second side extending from the bottom, wherein the second side is located opposite to the first side, and each of the plurality of syringe plungers moves along the track without contacting the bottom of the base portion of the track.

[0020] According to Example 16, any one of the methods in Examples 11 to 15 comprises the contact mechanism comprising a fluoropolymer material, optionally polytetrafluoroethylene.

[0021] According to the seventeenth example ("Example 17"), a track for an oscillating conveyor system configured to support a plurality of syringe plungers, wherein each syringe plunger has a contact mechanism, the contact mechanism located between the top and bottom surfaces of the syringe plunger, the track includes a first shoulder portion extending along the length of the track, the first shoulder portion having a first support surface defining a first inner edge, and a second shoulder portion extending along the length of the track on the opposite side of the first shoulder portion, the second shoulder portion having a second support surface defining a second inner edge, the first inner edge and the second inner edge being positioned opposite each other, such that the first support surface and the second support surface are configured to support the contact mechanism of each syringe plunger.

[0022] According to Example 18, the track of Example 17 includes a perimeter rib mechanism for each of the multiple syringe plungers.

[0023] According to the nineteenth example (Example 19), the track of Example 17 further includes that each contact mechanism of the plurality of syringe plungers is a substantially recessed portion of each syringe plunger.

[0024] According to the twentieth example (Example 20), the track of any one of Examples 17 to 19 further includes that a part of each of the plurality of syringe plungers passes between the first inner edge of the first shoulder portion of the track and the second inner edge of the second shoulder portion.

[0025] According to the twenty - first example (Example 21), the track of any one of Examples 17 to 20 further includes that the contact mechanism is located at a certain longitudinal distance from the center of mass of each syringe plunger, and this distance is smaller than the longitudinal distance between the bottom surface of each syringe plunger and the center of mass of each syringe plunger.

[0026] According to the twenty - second example (Example 22), the track of Example 21 includes that each syringe plunger has a center of mass, and the contact mechanism is located above the center of mass of each syringe plunger.

[0027] According to the twenty - third example (Example 23), a track for a vibrating - motion conveyor system includes a track having a length configured to support a plurality of syringe plungers. Each syringe plunger of the plurality of syringe plungers has at least one contact mechanism and a bottom surface. The at least one contact mechanism has a contact surface area smaller than the surface area of the planar projection of the bottom surface. The track further includes a first shoulder portion extending along the length of the track. The first shoulder portion has a first support surface defining a first inner edge. The track further includes a second shoulder portion extending along the length of the track on the opposite side of the first shoulder portion. The second shoulder portion has a second support surface defining a second inner edge. The first inner edge and the second inner edge are arranged opposite to each other. As a result, the first support surface and the second support surface are configured to support at least one contact mechanism of each syringe plunger.

[0028] According to the twenty-fourth example ("Example 24"), the track of Example 23 further includes that the contact surface area has a lower limit value and an upper limit value so that the stickiness between the contact surface area and the track is reduced.

[0029] According to the twenty-fifth example ("Example 25"), the track of Example 23 further includes that the contact surface area is 0.1% to 5% of the surface area of the planar projection of the bottom surface of each plunger.

[0030] According to the twenty-sixth example ("Example 26"), the track of Example 23 or Example 24 further includes that the ratio of the contact surface area to the width defined between the first inner edge and the second inner edge is 1.0% to 12.0%.

[0031] According to the twenty-seventh example ("Example 27"), the track of any one of Examples 23 to 26 further includes that the contact mechanism of each syringe plunger is the peripheral rib mechanism of each of the plurality of syringe plungers.

[0032] According to the twenty-eighth example ("Example 28"), the track for a vibrating motion conveyor system is configured to support a plurality of syringe plungers. Each syringe plunger of the plurality of syringe plungers has one or more contact points with the track. Each syringe plunger of the plurality of syringe plungers has a center of mass between the top surface and the bottom surface, and the one or more contact points are between the top surface and the bottom surface. The track includes a first shoulder portion extending along the length of the track. The first shoulder portion has a first support surface defining a first inner edge. The track includes a second shoulder portion extending along the length of the track on the opposite side of the first shoulder portion. The second shoulder portion has a second support surface defining a second inner edge. The first inner edge and the second inner edge are arranged opposite to each other. The first support surface and the second support surface are configured to support each syringe plunger at at least one contact point.

[0033] According to Example 29, the track of Example 28 further includes one or more contact points located closer longitudinally to the center of mass of each syringe plunger than the bottom surface of each syringe plunger is located relative to the center of mass of each syringe plunger.

[0034] According to the 30th example ("Example 30"), the track of Example 28 or Example 29 further includes having one or more contact points located above the center of mass of each syringe plunger.

[0035] The examples described herein are merely embodiments and should not be construed as limiting or narrowing the scope of the concepts of the present invention provided elsewhere in this disclosure. While several examples are disclosed, further embodiments will become apparent to those skilled in the art from the following detailed description, which illustrates and explains exemplary examples. Therefore, the drawings and detailed description should be considered illustrative and not restrictive in nature. [Brief explanation of the drawing]

[0036] Brief explanation of the drawing The accompanying drawings are included to provide a further understanding of this disclosure, are incorporated herein and constitute part thereof, illustrate embodiments, and help to explain the principles of this disclosure together with the description.

[0037] [Figure 1] Figure 1 shows several embodiments of a vibrating conveyor system.

[0038] [Figure 2] Figure 2 is a perspective view of the track of the vibration frequency conveyor system of Figure 1, according to several embodiments.

[0039] [Figure 3] Figure 3 is a cross-sectional view of the track in Figure 2 according to several embodiments.

[0040] [Figure 4]Figure 4 is an additional cross-sectional view of the track in Figure 3 supporting the syringe plunger, according to several embodiments.

[0041] [Figure 5A] Figure 5A is a cross-sectional view of the track in Figure 3 supporting a syringe plunger, according to several embodiments.

[0042] [Figure 5B] Figure 5B is a cross-sectional view of the track in Figure 3 supporting a syringe plunger, according to several embodiments.

[0043] [Figure 6] Figure 6 is a cross-sectional view of a truck according to several embodiments.

[0044] [Figure 7A] Figure 7A is a cross-sectional view of the track in Figure 6 supporting a syringe plunger, according to several embodiments.

[0045] [Figure 7B] Figure 7B is a top view of the truck in Figure 7A, according to several embodiments.

[0046] [Figure 8] Figure 8 is a bottom view of the syringe plunger of Figure 7A in several embodiments.

[0047] [Figure 9] Figure 9 is a flowchart showing several embodiments of methods for transporting multiple syringe plungers using the vibrating conveyor system of Figure 1. [Modes for carrying out the invention]

[0048] Detailed explanation Definitions and Terms This disclosure is not intended to be read restrictively. For example, terms used in this application should be read broadly in the context of the meanings to which experts in the field attributable such terms.

[0049] With regard to the terminology of inaccuracy, the terms “about” and “approximately” may be used interchangeably to refer to measurements including the stated measurement and any measurement that is reasonably close to the stated measurement. A measurement that is reasonably close to the stated measurement deviates by a reasonably small amount from the stated measurement, as can be understood and readily verified by a person skilled in the art. Such deviations may result from measurement errors, differences in the calibration of measurement and / or manufacturing equipment, human error in reading and / or setting of measurements, fine-tuning made to optimize performance and / or structural parameters to account for differences in measurements related to other components, specific implementation scenarios, inaccurate adjustment and / or handling of the object by a person or machine, etc. If it is determined that a person skilled in the art cannot readily verify the value of such a reasonably small difference, the terms “about” and “approximately” can be understood to mean plus or minus 10% of the stated value.

[0050] As used herein, the term “syringe plunger” means any of the various injection devices comprising a plunger, also called a stopper, housed within a barrel, and an operating mechanism configured to displace the plunger within the barrel to discharge or deliver the contents held within the barrel. Examples of injection devices include syringes, autoinjectors, pens, and the like.

[0051] The center of mass of the mass distribution in space corresponding to the syringe plunger is the intrinsic point where the sum of the weighted relative positions of the distributed mass of the syringe plunger is zero. This is the point where a force can be applied to cause linear acceleration without involving angular acceleration of the syringe plunger.

[0052] Description of various embodiments The various embodiments described herein relate to systems for transporting components such as syringe plungers, also known as syringe stoppers, that do not contain lubricants such as silicone oil. Syringe plungers and similar components, generally formed from rubber or rubber-like materials, have been found to present unique vibration track requirements. For example, the components being transported (e.g., syringe plungers) and the track itself do not need to contain a lubricant (e.g., silicone or silicone oil) in the areas where the components come into contact with the track. This "lubricant-free" characteristic can lead to throughput problems in conventional track designs. The various concepts described herein help to ensure that the components maintain a desired position within the track during transport (e.g., nearly vertical orientation by positioning perpendicular to the longitudinal axis of the plunger, or other orientations as desired) by utilizing the geometric shape of the components, and that they do not tip over, become displaced or detached within the linear track, and that jams do not occur within the track (e.g., if stiction between the syringe plunger and the track cannot be overcome). Furthermore, in some examples, the contact interface where the components come into contact with the track corresponds to one or more parts of the components containing relatively low-friction materials (e.g., stretched polytetrafluoroethylene or "ePTFE"), which helps to avoid such throughput problems. For reference, when clogging occurs, correction requires operator intervention, leading to decreased efficiency, increased risk of contamination, and various other undesirable consequences.

[0053] Figure 1 shows a vibratory conveyor system 10 according to several embodiments. The vibratory conveyor system 10 is configured to transport or translate multiple syringe plungers 20 along a track 12 of the system 10. Although one track 12 is shown in Figure 1, the system 10 can include any number of tracks 12 as desired (e.g., two, four, eleven, etc.). As shown, the system 10 includes a controller 17, a track 12, a vibratory frequency generator 13 operably coupled to the track 12, and a feeder bowl 15 positioned adjacent to the track 12 and operably coupled to the vibratory frequency generator 13. The controller 17 is used to operate the vibratory frequency generator 13 according to various embodiments.

[0054] In various embodiments, the controller 17 may include a control panel or other user interface. The vibration frequency generator 13 is operable to apply vibration frequencies of 0 to 300 Hz, for example, 60 Hz, but various conditions are possible. As shown in the figure, the track 12 is configured to support and translate multiple syringe plungers 20 in a relatively uniform and repeatable manner. The vibration frequency generator 13 may include an actuator configured so that its electromagnetic action generates a vibration frequency, which is applied to the track 12 and feeder bowl 15 via a spring. Examples of such electromagnetic actuators include, but are not limited to, an electric motor, one or more solenoid actuators, and one or more movable coil actuators.

[0055] Figure 2 shows perspective views of the track 12 of the system 10 of Figure 1 according to several embodiments. The track 12 has a length 14 suitable for supporting multiple syringe plungers 20 (Figure 1). In various examples, the track 12 is formed from a metallic material such as stainless steel alloy, but any material suitable for vibratory conveying is possible. The track 12 may include various surface treatments (e.g., coatings, surface polishing, etc.) to enhance the performance of the track 12. The track may be formed by, for example, casting, molding, milling, machining and / or extrusion processes. In various examples, the track 12 substantially does not contain additional lubricants such as silicone (e.g., silicone oil).

[0056] Figure 3 shows cross-sectional views of the track 12 of Figure 2 according to several embodiments. As shown, the track 12 includes a base portion 38, which includes a bottom portion 32, a first side portion 34 extending from the bottom portion 32, and a second side portion 36 extending from the bottom portion 32. The track 12 includes a first shoulder portion 16 located at the top of the first side portion 34 of the base portion 38, and a second shoulder portion 18 located at the top of the second side portion 36 of the base portion 38. The first and second shoulder portions 16 and 18 each extend along the length 14 (Figure 2) of the track 12 (for example, along the entire length of the track or along only one or more portions thereof). The first shoulder portion 16 includes a first support surface 22 defining a first inner edge 28. The second shoulder portion 18 also includes a second support surface 24 defining a second inner edge 30.

[0057] As shown in the figure, the second side 36 of the base portion 38 is located opposite the first side 34. According to some embodiments, the base portion 38 is generally U-shaped, and both the first side 34 and the second side 36 extend from the bottom 32. In some examples, the first side 34 and the second side 36 extend perpendicularly from the bottom 32 and each has an equal height. The respective heights of the first side 34 and the second side 36 can be selected based on the dimensions of the plurality of syringe plungers 20 (Figure 1). In various embodiments, the dimensions of the track 12 are selected such that the heights of the first side 34 and the second side 36 are greater than the height of the respective suspended portion or first portion of the plurality of syringe plungers 20.

[0058] The first inner edge and the second inner edge 28, 30 can be aligned with the first side and the second side 34, 36 of the base portion 38, respectively. In this way, the first inner edge and the second inner edge 28, 30 are spaced apart from each other to define a width 40. The width 40 can be selected based on the characteristics of each of the multiple syringe plungers 20 (Figure 1) such that a portion of each of the multiple syringe plungers 20 is supported by the first shoulder portion and the second shoulder portion 16, 18 of the track 12, as will be further explained with reference to Figures 4, 5A and 5B.

[0059] The width 40 between the first side 34 and the second side 36 of the base portion 38 is generally greater than the diameter of each portion of the stopper 20 that is received between the first side 34 and the second side 36. For example, in various embodiments, the width 40 is greater than the diameter of each portion of the syringe plunger 20 that extends below the first inner edge and the second inner edge 28, 30.

[0060] In various embodiments, the first inner edge and the second inner edges 28, 30, respectively, are rounded, chamfered, or otherwise modified to reduce potential plunger damage during transport along the inner edges 28, 30. For example, the first inner edge 28 may define a first radius of curvature 44, and the second inner edge 30 may define a second radius of curvature 46. The first radius of curvature 44 and the second radius of curvature 46 may be substantially the same. In various embodiments, the first radius of curvature 44 and the second radius of curvature 46 each typically have a value that does not exceed the distance the contact mechanism extends from the respective bodies of the multiple syringe plungers 20 (Figure 2). In other words, the radius of curvature is typically not greater than the width of the contact mechanism. To enhance the performance of the track 12, various surface modifications can be applied to the first and second inner edges 28, 30, such as surface coating of the edges or modification of the radii of curvature 44, 46.

[0061] Figure 4 shows a cross-sectional view of track 12 in Figure 3, where the first syringe plunger 20a of the multiple syringe plungers 20 is located within track 12. While the first syringe plunger 20a is shown in use within track 12 in Figure 3, it is also conceivable that the first syringe plunger 20a could be used similarly with track 12' shown in Figure 6. For future reference, the following description of the first syringe plunger 20a is applicable to each of the multiple syringe plungers 20, although various syringe plunger designs are possible.

[0062] As shown in the figures, each of the first syringe plunger 20a, and therefore each of the multiple syringe plungers 20, includes a top surface 33 and a bottom surface 31. As will be further explained with reference to Figures 7A and 78, the top surface 33 has a top surface area and the bottom surface 31 has a bottom surface area. In some embodiments, the top surface area and the bottom surface area are approximately equal. As shown in the figures, the first syringe plunger 20a includes a first periphery rib mechanism 21, a second periphery rib mechanism 25, and a third periphery rib mechanism 26. Although three periphery rib mechanisms or ribs are shown, any number of periphery rib mechanisms are conceivable. The first syringe plunger 20a also includes at least one recessed area, also called a groove, such as a first recessed area 37. As shown in Figure 4, the second periphery rib mechanism 25 corresponds to the maximum outer diameter 42 of the first syringe plunger 20a. The second periphery rib mechanism 25 corresponds to the maximum diameter in some examples, but in various embodiments having multiple ribs, any rib may be configured to define the maximum outer diameter 42. As shown, the first syringe plunger 20a includes a third periphery rib mechanism 26 positioned below the second periphery rib mechanism 25. As shown, the third periphery rib mechanism 26 has a slightly smaller diameter than the second periphery rib mechanism 25, but any various configurations are possible that include periphery rib mechanisms with smaller or larger diameters, or more or fewer periphery rib mechanisms.

[0063] The first syringe plunger 20a includes one or more contact mechanisms 23 positioned along the first syringe plunger 20a between its top surface 33 and bottom surface 31. Each of the one or more contact mechanisms 23 corresponds to one or more portions of the first syringe plunger 20a that engage with the track 12. Generally, the first syringe plunger 20a rests on one or more contact mechanisms 23 as it traverses the track 12. The contact mechanisms 23 may include one or more perimeter rib mechanisms, such as a second perimeter rib mechanism 25 as shown in Figure 4. While the second perimeter rib mechanism 25 is shown functioning as a contact mechanism 23, it should be understood that the track 12 can be configured so that another perimeter rib mechanism functions as a contact mechanism 23.

[0064] As shown in Figure 4, the first syringe plunger 20a defines a first portion 27 and a second portion 29. The first portion 27 includes the length or portion of the first syringe plunger 20a between the bottom surface 31 of the first syringe plunger 20a and one or more contact mechanisms 23 supported by the track 12. As shown in Figure 4, the first portion 27 includes the portion of the first syringe plunger 20a between the bottom surface 31 of the first syringe plunger 20a and the second peripheral rib mechanism 25. The second portion 29 is defined as the length or portion of the first syringe plunger 20a between one or more contact mechanisms 23 (the second peripheral rib mechanism 25 in Figure 4) supported by the track 12 and the top surface 33 of the first syringe plunger 20a.

[0065] As shown in the figure, the first portion 27 includes a third periphery rib mechanism 26 and a relatively recessed region 37, which is a first recessed region 37 located between the second periphery rib mechanism 25 and the third periphery rib mechanism 26. The first recessed region 37 may be defined by the minimum outer diameter 39 of the first syringe plunger 20a. The contact mechanism 23 may be defined by a periphery rib mechanism having the maximum diameter (e.g., the second periphery rib mechanism 25 as shown in Figure 4) or by a periphery rib mechanism having another relative diameter. As shown in Figure 4, the diameter of each additional periphery rib mechanism of the first portion 27 (the third periphery rib mechanism 26 as shown in Figure 4) is smaller than the maximum outer diameter 42 of the contact mechanism 23, which is the second periphery rib mechanism 25 in Figure 4.

[0066] By defining a diameter smaller than that of the first syringe plunger 20a, the first portion 27 can be received within the square slot defined between the first side 34 and the second side 36. In other words, the smaller diameter of the first portion 27 ensures that it is positioned between the first side 34 and the second side 36. The second portion 29 may optionally define a diameter smaller or larger than one or more contact mechanisms 23. The second portion 29 may include additional perimeter rib mechanisms (e.g., the first perimeter rib mechanism 21 as shown). In any case, the diameter defined at any position along the longitudinal direction of the second portion 29 may be greater than, equal to, or less than the maximum outer diameter 42. From the above, it should be understood that the number, size, shape, and position of one or more contact mechanisms 23 of each of the multiple syringe plungers 20 can vary, as will be further explained with reference to Figures 5A, 5B, and 7A.

[0067] Multiple syringe plungers 20 can be formed using various techniques, including molding, laser processing, and machining. In various embodiments, the first syringe plunger 20a can be formed from various polymer materials, elastic materials, and / or elastomer materials, including, but not limited to, thermoplastic elastomers, butyl rubber, and silicone. In some embodiments, one or more portions of the first syringe plunger 20a, including the entire first syringe plunger 20a, may be coated with a barrier film. In various examples, the bottom surface 31 is uncoated and / or includes an exposed elastomer surface (e.g., butyl rubber or silicone). Non-limiting examples of suitable barrier films include, but not limited to, fluoropolymer films and expanded fluoropolymer films, such as polytetrafluoroethylene (PTFE) films and stretched polytetrafluoroethylene (ePTFE) films. ePTFE-based barrier films provide a thin and strong barrier layer against leachates and extracts. The barrier film may also include an expandable polymer material comprising a functional tetrafluoroethylene (TFE) copolymer material having a microstructure characterized by nodes interconnected by fibrils, where the functional TFE copolymer material is a functional copolymer of TFE and PSVE (perfluorosulfonyl vinyl ether), or TFE and another suitable functional monomer, the other functional monomer being, but not limited to, vinylidene fluoride (VDF), vinyl acetate, or vinyl alcohol.

[0068] As shown in Figure 4, during use, the track 12 is configured to support the first syringe plunger 20a and, therefore, each syringe plunger of the plurality of syringe plungers 20. As previously mentioned, a portion of the first syringe plunger 20a (first portion 27 as shown) passes between the first inner edge and the second inner edges 28, 30 (Figure 3) of the track 12. The first inner edge and the second inner edges 28, 30 of the first and second shoulder portions 16, 18 engage with one or more contact mechanisms 23 (second periphery rib mechanism 25) of each of the plurality of syringe plungers 20, as shown with respect to the first syringe plunger 20a.

[0069] The width 40 of the track 12 (Figure 3) is configured to be smaller than the maximum outer diameter 42 of the syringe plunger 20a (for example, smaller than the diameter of one or more contact mechanisms 23), but larger than the diameter of the first portion 27 of the first syringe plunger 20a, which includes a third periphery rib mechanism 26. In this way, the first portion 27 of the first syringe plunger 20a is inserted into the track 12, and one or more contact mechanisms 23, a second periphery rib mechanism 25, as shown, are supported by the first support surface 22 of the first shoulder portion 16 and the second support surface 24 of the second shoulder portion 18 of the track 12. As shown in Figure 4, the first inner edge and the second inner edges 28, 30 engage with the first syringe plunger 20a at one or more contact points with a portion of the first syringe plunger 20a having a diameter larger than the diameter of the portion directly below it. In this way, the syringe plunger 20a is received and suspended between the first inner edge and the second inner edges 28, 30, but does not require direct contact or engagement at the maximum diameter 42 of the syringe plunger 20a. For example, the first inner edge and the second inner edges 28, 30 can also engage with a portion of the second periphery rib mechanism 25 at a diameter larger than the diameter directly below the contact point or contact position, but smaller than the maximum diameter 42. Thus, the contact point or contact position between the first and second inner edges 28, 30 and the first syringe plunger 20a includes an example in which the rib mechanism 25 defines a contact surface area between the track 12 and the first syringe plunger 20a.

[0070] As previously mentioned, Figure 4 shows a first syringe plunger 20a supported by a second periphery rib mechanism 25, but the first syringe plunger 20a can be supported, and therefore multiple syringe plungers 20, using other contact mechanisms, such as other periphery rib mechanisms. Again, the contact point between the first syringe plunger 20a and the track 12 may be any of the various positions along the height of the first syringe plunger 20a. In other words, the first syringe plunger 20a can engage with one or more contact points under or in any other contact mechanisms 23 of the multiple syringe plungers.

[0071] As shown in the figure, the first side 34 and the second side 36 of the track 12 are spaced relatively close to or define the width of the outer diameter of the first portion 27 of the first syringe plunger 20a, thereby minimizing the lateral or side-to-side tilt of the first syringe plunger 20a. The height defined by each of the first side 34 and the second side 36 of the base portion 38 may be greater than the length of the first portion 27 of the first syringe plunger 20a. In this way or in other ways, the track 12 may be configured so that the bottom surface 31 of the first syringe plunger 20a does not come into contact with the bottom 32 of the base portion 38. In some embodiments, a change in the height of the first portion 27 of the first syringe plunger 20a, or a change in the arrangement and / or size of the periphery rib mechanism 26, can result in design variations of one or more dimensions of the track 12.

[0072] In terms of facilitating movement, the absence of contact between the bottom 32 of the base portion 38 and the bottom surfaces 31 of the first syringe plunger 20a, and consequently the bottom surfaces 31 of the multiple syringe plungers 20, reduces stiction between the bottom surfaces 31 of the first syringe plunger 20a, thereby improving throughput and reducing the number of interventions required by the operator to maintain the desired arrangement of the multiple syringe plungers 20 along the track 12. This feature may be particularly advantageous when the bottom surface 31 of the first syringe plunger 20a is formed of an elastomer that does not contain silicone oil or other lubricants (whether dry, oil-based, or of another nature). Furthermore, in these embodiments, one or more contact points defining where the first syringe plunger 20a engages with the track 12 are located closer to the center of mass of the first syringe plunger 20a, or in some cases, above the center of mass of the first syringe plunger 20a, than the bottom surface 31 is located longitudinally with respect to the center of mass of the first syringe plunger 20a. Thus, one or more contact points are located at a longitudinal distance from the center of mass of the first syringe plunger 20a that is shorter than the longitudinal distance between the bottom surface 31 and the center of mass of the first syringe plunger 20a. Supporting the syringe plunger 20a closer to the center of mass of the first syringe plunger 20a than if it were supported on its bottom surface 31 or above the center of mass of the syringe plunger 20a reduces the risk of the first syringe plunger 20a tilting. In other words, the tendency of the first syringe plunger 20a to tilt is reduced or decreased by being supported by the first and second inner edges 28, 30, resulting in a similar effect on each of the multiple syringe plungers 20 in the track 12, thereby contributing to improved throughput and a reduction in intervention cases.

[0073] Figure 4 shows the use of track 12 in a first syringe plunger 20a having a first periphery rib mechanism 21, a second periphery rib mechanism 25, and a third periphery rib mechanism 26, but track 12 can be used in combination with different embodiments of the first syringe plunger 20a. Following these, various additional examples are shown and explained with reference to Figures 5A and 5B.

[0074] Figure 5A is a cross-sectional view of an additional embodiment of the syringe plunger, for example, an additional example of track 12 used with a second syringe plunger 20b. The following description will be made with reference to the second syringe plunger 20b used with track 12, but this description may apply to any of the multiple syringe plungers 20. In this embodiment, the second syringe plunger 20b includes one or more contact mechanisms 23, in this case a second periphery rib structure 25. As shown in Figure 5A, the first periphery rib mechanism and the second periphery rib mechanisms 21, 25 have substantially the same diameter. In various embodiments, the first periphery rib mechanism 21 may have a larger diameter than the second periphery rib mechanism 25, but the diameter of the second periphery rib mechanism 25 is greater than the width 40 of the track (Figure 3). As shown, the first portion 27 of the second syringe plunger 20b is positioned between the first side 34 and the second side 36 of track 12. In this exemplary embodiment, the second periphery rib mechanism 25 is supported by the first shoulder portion 16 and the second shoulder portion 18 of the track 12. The width 40 of the track 12 (Figure 3) is smaller than the diameter of the second periphery rib mechanism 25 so that the second syringe plunger 20b is suspended from the first and second shoulder portions 16, 18.

[0075] Figure 5B shows an example of an additional track 12 used with one of the multiple syringe plungers 20, for example, a third syringe plunger 20c. In this embodiment, the third syringe plunger 20c includes a first periphery rib mechanism 21 and a second periphery rib mechanism 25. As shown, the first periphery rib mechanism 21 has a larger diameter than the second periphery rib mechanism 25. As shown, when used with the track 12, the first periphery rib mechanism 21 functions as a contact mechanism 23 and is supported by a first shoulder portion 16 and a second shoulder portion 18. The diameter of the second periphery rib mechanism 25 is smaller than the width 40 (Figure 3) of the track 12 so that the first portion 27 of the third syringe plunger 20c below the first periphery rib mechanism 21 fits inside the portion of the track 12 between the first side portion 34 and the second side portion 36. In this way, the third syringe plunger 20c, and thus each of the multiple syringe plungers 20, is suspended from the first and second shoulder portions 16, 18 such that the bottom surface 31 of the syringe plunger 20c does not come into contact with the bottom 32 of the base portion 38 of the track 12.

[0076] In various embodiments, track 12 can be used with various syringe plungers, such as a syringe plunger having one periphery rib mechanism supported by a first shoulder portion and a second shoulder portion 16, 18. In other embodiments, the syringe plunger may have three or more periphery rib mechanisms and / or substantially recessed portions. In these embodiments, with reference to track 12, any of the periphery rib mechanisms can function as a contact mechanism supported by the first shoulder portion and the second shoulder portion 16, 18, as long as the remaining diameter of the syringe plunger below the selected contact mechanism is less than the width 40 (Figure 3).

[0077] Figure 6 shows a cross-sectional view of a track 12' according to several embodiments. As shown, the track 12' includes a base portion 38, which includes a bottom 32, a first side portion 34 extending from the bottom 32, and a second side portion 36 extending from the bottom 32. The track 12' also includes a first shoulder portion 16' located at the top of the first side portion 34 of the base portion 38, and a second shoulder portion 18' located at the top of the second side portion 36 of the base portion 38. The first and second shoulder portions 16' and 18' each extend along the length 14 of the track 12' (Figure 2) (for example, along the entire length of the track, or along only one or more of it). The first shoulder portion 16' includes a first support surface 22 defining a first inner edge 28. The second shoulder portion 18' includes a second support surface 24 defining a second inner edge 30.

[0078] In various embodiments, as described above with reference to Figure 3, the first inner edge and the second inner edges 28, 30, respectively, are rounded, chamfered, or otherwise modified to reduce potential plunger damage during transport along the inner edges 28, 30. For example, the first inner edge 28 may define a first curvature diameter 44, and the second inner edge 30 may define a second curvature radius 46. The first curvature radius 44 and the second curvature radius 46 may be substantially the same. To improve the performance of the track 12', various surface modifications, such as surface coating of the edges or modification of the curvature radii 44, 46, can be applied to the first and second inner edges 28, 30.

[0079] As shown in the figure, the second side 36 of the base portion 38 is located opposite the first side 34. According to some embodiments, the base portion 38 is substantially U-shaped, and both the first side 34 and the second side 36 extend from the bottom 32. In some examples, the first side 34 and the second side 36 extend perpendicularly from the bottom 32 and each has an equal height.

[0080] As shown in the figure, the first inner edge 28 and the second inner edge 30 can each be defined to be of equal height. In various embodiments, the dimensions of the first inner edge 28 and the second inner edge 30 are selected such that the combined height of the first inner edge 28 and the first side 34 of the base portion 38, and the combined height of the second inner edge 30 and the second side 36, are greater than the height of each suspended portion or first portion of the multiple syringe plungers (Figure 1).

[0081] As shown in Figure 6, the first inner edge 28 of the first shoulder portion 16' extends inward from the first side portion 34 of the base portion 38, and the second inner edge 30 of the second shoulder portion 18' extends inward from the second side portion 36. The shoulder portions 16' and 18' form projections configured to suspend each of the multiple syringe plungers 20 within the track 12', as will be further described with reference to Figures 7A and 7B.

[0082] The first and second shoulder portions 16', 18' are shown as substantially rectangular projections, but the projections can be substantially triangular or semicircular, for example, along with other shapes. Although shown projecting horizontally with flat or horizontal support surfaces, in various embodiments the first and second shoulder portions 16', 18' can generally extend at an upward or downward angle to present an angled support surface. The first and second inner edges 28, 30 of the first and second shoulder portions 16', 18' each define a width 48 that is narrowed to the width 40' between the first side 34 and the second side 36 of the base portion 38. Generally speaking, as will be described later, in various examples, the first inner edge and the second inner edges 28, 30 are configured to engage with a portion of the syringe plunger 20 at a certain position between the top surface 33 and the bottom surface 31 of the syringe plunger 20, so that the syringe plunger 20 is supported between the top surface 33 and the bottom surface 31 of the syringe plunger 20.

[0083] The width 40' between the first side 34 and the second side 36 of the base portion 38 is generally greater than the diameter of each portion of the stopper 20 that is received between the first side 34 and the second side 36. For example, in various embodiments, the width 40' is greater than the diameter of each portion of the syringe plunger 20 that extends below the first and second inner edges 28, 30. Also, in various embodiments, the narrowed width 48 defined by the first and second inner edges 28, 30 of the first and second shoulder portions 16', 18' has a value smaller than the diameter of each contact mechanism of the plurality of syringe plungers 20, as will be further explained with reference to Figures 7A and 7B.

[0084] Figure 7A shows a cross-sectional view of the track 12' of Figure 6 used with a plunger among the multiple syringe plungers 20, specifically the fourth syringe plunger 20d. As shown, in various embodiments, the fourth syringe plunger 20d includes one or more contact mechanisms 23, specifically a second periphery rib mechanism 25. As shown in Figure 7A, the first and second shoulder portions 16', 18' are received within the first recessed region 37 of the fourth syringe plunger 20d so that the second periphery rib mechanism 25 is located above and supported by the first and second shoulder portions 16', 18'. As shown, the maximum outer diameter 42 of the fourth syringe plunger 20d is located within the track 12', although in other embodiments the maximum outer diameter 42 may be located above the track 12'. As shown in Figure 7A, the maximum outer diameter 42 is located within the track 12' without interfering with the suspension of each of the multiple syringe plungers 20. This can be facilitated by ensuring that the ratio of the width 40' between the first side 34 and the second side 36 of the base portion 38 to the narrowed width 48 defined by the first and second inner edges 28, 30 of the first and second shoulder portions 16', 18' is greater than 1. Under these circumstances, a portion of the fourth syringe plunger 20d having a diameter greater than the value of the narrowed width 48 can be housed within the portion of the track 12 defined by the width 40'. For example, in the exemplary embodiment of Figure 7A, the third perimeter rib mechanism 26 has a diameter greater than the narrowed width 48. As shown in the figure, the height of the first side portion 34 combined with the first inner edge 28, and the height of the second side portion 36 combined with the second inner edge 30, are each greater than the height of the first portion 27 of the fourth syringe plunger 20d, so that the bottom surface 31 of the fourth syringe plunger 20d does not come into contact with the bottom 32 of the base portion 38. This feature, which avoids contact at the ends, provides various advantages as described above.

[0085] Figure 7B shows a top view of the track 12' used with the fourth syringe plunger 20d as shown in Figure 7A. As previously described with reference to the first syringe plunger 20a (Figure 4), the top surface 33 of the fourth plunger 20d has a certain surface area, and the planar projection of the top surface 33 of the fourth plunger 20d also has a certain surface area (as further described below). In this embodiment, the surface area of ​​the planar projection of the top surface 33 is approximately the same as the surface area of ​​the planar projection of the bottom surface 31 (Figure 7A), as further described below with reference to Figure 8. Furthermore, in this exemplary embodiment, the second periphery rib mechanism 25 is shown overlapping with the first and second shoulder portions 16', 18' so that a contact area is formed between the track 12' and the fourth syringe plunger 20d. The contact area includes a contact surface area defined by the surface area available for overlapping contact with the track 12'.

[0086] Figure 8 shows a bottom view of the fourth plunger 20d of Figure 7B, in several examples. As shown in Figure 8, the bottom surface 31 appears such that the third peripheral rib 26 is located approximately above the bottom surface 31 and extends radially outward relative to the bottom surface 31. In three-dimensional space, the bottom of the fourth plunger 20d is rounded and has surface features. However, the bottom surface region of the fourth plunger 20d can also be represented as a planar projection. In these terms, the planar projection of the bottom surface 31 is a substantially plane that includes the region of the central opening 50 within the center of the bottom surface 31. The bottom surface 31 and its associated planar projection are bounded by the outer perimeter 52. In various embodiments, the bottom surface 31 includes a plurality of protrusions 54 (e.g., substantially hemispherical or dome-shaped protrusions). The surface area of ​​the planar projection of the bottom surface 31 can be defined as including the total area of ​​the planar projection of the bottom surface 31, including the cross-sectional area of ​​the opening 50, and the surface area of ​​the planar projection of the bottom surface 31 refers to the entire surface area within the outer circumference 52 of the bottom surface 31. In this way, the surface area of ​​the planar projection of the bottom surface 31 is approximately the same as the surface area of ​​the planar projection of the top surface 33 (Figure 7B).

[0087] From the above description at least, it is clear that there are various configurations of syringe plungers that can be used with tracks such as track 12' according to various embodiments. For example, the first syringe plunger, second syringe plunger, and third syringe plungers 20a, 20b, and 20c described above can each be used with track 12'. A fourth syringe plunger 20d can also be used with track 12 (for example, by flipping the fourth syringe plunger 20d or changing its orientation up and down). Further other configurations are also conceivable within the scope of this embodiment. For example, each of the plurality of syringe plungers 20 may include a single periphery rib mechanism supported by the first and second shoulder portions 16' and 18' of track 12'. In other embodiments, each of the plurality of syringe plungers 20 may include four, five, six or more periphery rib mechanisms and / or an overall recessed portion. Tracks 12, 12' can be appropriately modified so that either a perimeter rib mechanism or other contact mechanism can be supported by the first and second shoulder portions 16, 18, or the first and second shoulder portions 16', 18'.

[0088] The various dimensions and values ​​presented throughout this disclosure are illustrative and given for reference purposes only. The principles disclosed throughout are applicable to any of the various syringe plunger sizes, and the exemplary dimensions can be scaled or modified to apply to various syringe plunger sizes. Furthermore, the exemplary dimensions of the track can be scaled or modified to adapt to various dimensions of syringe plungers. For example, with respect to each of the multiple syringe plungers 20, the contact surface area defined by one or more contact mechanisms 23 can be, for example, 0.1% to 5.0% of the area of ​​the planar projection of the bottom surface area or the planar projection of the top surface area of ​​a particular syringe plunger. With respect to the track design, the contact surface of one or more contact mechanisms can be defined as a ratio to the width 40 (Figure 4) or narrowed width 48 (Figure 6), for example, 1.0% to 12.0%.

[0089] In various examples, the contact mechanism surface area is minimized by supporting a particular syringe plunger using a relatively small contact area (i.e., using a relatively narrow contact mechanism). This can then help reduce stiction between the track on which it is mounted (e.g., track 12, 12') and the syringe plunger. However, if the value is too small for the contact mechanism surface area, the stability of each of the multiple syringe plungers 20 on track 12, 12' may be reduced. To avoid excessive stiction between each of the multiple syringe plungers 20 and track 12, 12', it is desirable that the contact mechanism surface area does not exceed an upper limit.

[0090] Figure 9 is a flowchart illustrating a method 60 for transporting multiple syringe plungers 20 using a vibrating conveyor system. Method 60 is described with reference to the vibrating conveyor system 10 in Figure 1 and the track 12 and multiple syringe plungers 20 as described with reference to Figures 3, 4, 5A, and 5B. Method 60 can also be used with the track 12' as described with reference to Figure 6.

[0091] In block 62, method 60 includes supplying a plurality of syringe plungers 20 into a track 12. The track 12 may be operably coupled to a vibration frequency generator 13. In some examples, each syringe plunger of the plurality of syringe plungers is substantially free of silicone oil when transported in the track 12. As described, the track 12 includes a first shoulder portion 16 extending along the track 12 and a second shoulder portion 18 extending along the track 12 on the opposite side of the first shoulder portion 16. For reference, a similar process may be used in track 12'.

[0092] In block 64, method 60 further includes supporting each of the plurality of syringe plungers 20 on the track 12 (or track 12') as described with reference to Figure 4. A contact mechanism between the top and bottom of each syringe plunger, such as a second perimeter rib mechanism 25, is supported by the first support surface 22 of the first shoulder portion 16 of the track 12 and the second support surface 24 of the second shoulder portion 18 of the track 12. In this way, each syringe plunger of the plurality of syringe plungers 20 extends between the first and second inner edges 28 and 30 of the first and second support surfaces 22 and 24, respectively. Each of the plurality of syringe plungers 20 does not come into contact with the bottom 32 of the base portion 38 of the track 12 as a result of being supported by the first and second support surfaces 22 and 24. In other words, the top and bottom surfaces of the syringe plungers do not come into contact with the track 12.

[0093] In various embodiments, when Method 60 is used with a track 12' (Figure 6) and a plurality of syringe plungers 20 (Figures 7A, 7B), each substantially recessed portion of the syringe plungers 20, such as the first recessed area 37 of the first syringe plunger 20a, and thus each substantially recessed portion of the plurality of syringe plungers 20, may be positioned within the narrowed width 48 of the track 12'. In this way, a portion (e.g., the majority) of the first portion 27 of the first syringe plunger 20a, rather than the entirety, is tightly surrounded by the track 12'. Similar to use with the track 12, the bottom surface 31 of the first syringe plunger 20a remains positioned to avoid direct contact with the bottom 32 of the base portion 38.

[0094] In block 66, method 60 further includes vibrating the track 12 using a vibration frequency generator 13. The vibration of the track 12 causes the multiple syringe plungers 20 to move along the track 12 (or track 12', if applicable). In some embodiments, the track 12 is vibrated at a frequency of 1 to 180 Hz. In a preferred embodiment, the track 12 is vibrated at a frequency of 60 Hz, but any of the various values ​​are possible. The support of each contact mechanism of the multiple syringe plungers 20 between the first inner edge 28 and the second inner edge 30 (e.g., the second periphery rib mechanism 25) eliminates contact between the bottom 32 (Figure 4) of the base portion 38 of the track 12 and the bottom surface 31 (Figure 4) of each of the multiple syringe plungers 20. Again, this eliminates stiction between the multiple syringe plungers 20 and the track 12, among other advantages, and thus can increase the transport efficiency of the multiple syringe plungers 20.

[0095] Those skilled in the art will readily understand that various aspects of this disclosure can be achieved by any number of methods and apparatus configured to perform the intended functions, such as limiting the vibrational transport of improved syringe plungers. Such improvements may be beneficial as a means of improving the transport of syringe plungers that are substantially free of silicone oil or other lubricants. It should also be noted that the accompanying drawings referenced herein are not necessarily drawn to a fixed scale and may be exaggerated to illustrate various aspects of this disclosure, and in that respect, the drawings should not be construed as limiting.

[0096] Various modifications and additions can be made to the exemplary embodiments described without departing from the scope of this disclosure. For example, while the embodiments described above refer to certain features, the scope of this disclosure also includes embodiments having different combinations of features, and embodiments that do not include all of the features described. Accordingly, the scope of this disclosure is intended to encompass all alternatives, modifications, and variations included in the claims, along with all of their equivalents. This disclosure includes the following aspects: 《Aspect 1》 A track for a vibrating conveyor system, the track having a length configured to support a plurality of syringe plungers, each of the plurality of syringe plungers having a top, a bottom and a contact mechanism, the contact mechanism being optionally a circumferential rib mechanism, the contact mechanism being located between the top and bottom of the syringe plunger, and the track being, A first shoulder portion having a first support surface that extends along the length of the aforementioned track and defines a first inner edge, and A second shoulder portion located opposite the first shoulder portion, extending along the length of the track and having a second support surface defining a second inner edge, A track comprising, wherein the first inner edge and the second inner edge are arranged to face each other, and the first support surface and the second support surface are configured to support the contact mechanism of each syringe plunger such that a portion of each syringe plunger passes between the first inner edge and the second inner edge of the first support surface and the second support surface, respectively. 《Aspect 2》 The track according to embodiment 1, further comprising a base portion having a bottom, a first side portion extending from the bottom, and a second side portion extending from the bottom, wherein the second side portion is located opposite to the first side portion, and further, the first shoulder portion is located at the top of the first side portion, and the second shoulder portion is located at the top of the second side portion. 《Aspect 3》 The track according to embodiment 2, wherein the base portion is U-shaped, and the first side portion and the second side portion extend perpendicularly from the bottom portion of the base portion. Appearance 4 The track according to embodiment 2 or 3, wherein the first inner edge and the second inner edge of the first shoulder portion and the second shoulder portion are aligned with the first side portion and the second side portion of the base portion. 《Aspect 5》 The track according to embodiment 2 or 3, wherein the first inner edge and the second inner edge of the first shoulder portion and the second shoulder portion extend inward from the first side and the second side of the base portion such that the first edge and the second edge of the first shoulder portion and the second shoulder portion define a width that is narrowed with respect to the width between the first side and the second side of the base portion. 《Aspect 6》 The track according to embodiment 4, wherein the first inner edge and the second inner edge of the first shoulder portion and the second shoulder portion are spaced apart from each other to define a width smaller than the maximum outer diameter of each syringe plunger of the plurality of syringe plungers. Appearance 7 A vibrating conveyor system, wherein the system is Vibration frequency generator, and, A track operably coupled to the vibration frequency generator, the track having a length configured to support a plurality of syringe plungers, each of the plurality of syringe plungers having a bottom and a contact mechanism which is optionally a periphery rib mechanism, The track includes, A first shoulder portion having a first support surface that extends along the length of the aforementioned track and defines a first inner edge, and A second shoulder portion located opposite the first shoulder portion, extending along the length of the track and having a second support surface defining a second inner edge, A vibrating conveyor system comprising, wherein the first inner edge and the second inner edge are arranged to face each other, the first support surface and the second support surface are configured to support the contact mechanism of each syringe plunger such that a portion of each syringe plunger passes between the first inner edge and the second inner edge of the first support surface and the second support surface, respectively, and the bottom of each syringe plunger does not come into contact with the track. 《Aspect 8》 The system according to embodiment 7, wherein the track further includes a base portion having a bottom, a first side portion extending from the bottom, and a second side portion extending from the bottom, the second side portion being located opposite to the first side portion, the first shoulder portion being located at the top of the first side portion, and the second shoulder portion being located at the top of the second side portion. 《Aspect 9》 The system according to embodiment 8, wherein the base portion is U-shaped, and the first side portion and the second side portion extend perpendicularly from the bottom portion. 《Aspect 10》 The system according to any one of embodiments 7 to 9, wherein the vibration frequency generator is operable to apply vibration frequencies of 1 to 180 Hz. 《Aspect 11》 A method for transporting multiple syringe plungers using a vibrating conveyor system, wherein the method is: A plurality of syringe plungers are supplied to a track operably coupled to a vibration frequency generator, wherein each syringe plunger of the plurality of syringe plungers has a contact mechanism which is optionally a circumferential rib mechanism, and the track has a first shoulder portion extending along the track and a second shoulder portion extending along the track on the opposite side of the first shoulder portion. Each syringe plunger's contact mechanism is supported by the first support surface of the first shoulder portion and the second support surface of the second shoulder portion, such that each syringe plunger extends between the first inner edge and the second inner edge of the first and second support surfaces, respectively, and the bottom of each syringe plunger does not come into contact with the track, and The vibration frequency generator vibrates the track so that the plurality of syringe plungers move along the track. Methods that include... 《Aspect 12》 The method according to embodiment 11, wherein the track is vibrated at a frequency of 1 to 180 Hz. 《Aspect 13》 The method according to embodiment 11 or 12, wherein the surrounding rib mechanism of each of the plurality of syringe plungers corresponds to the maximum outer diameter of each of the plurality of syringe plungers. Appearance 14 The method according to any one of embodiments 11 to 13, wherein each of the plurality of syringe plungers does not contain silicone oil. 《Aspect 15》 The method according to any one of embodiments 11 to 14, wherein the track further includes a base portion having a bottom, a first side portion extending from the bottom, and a second side portion extending from the bottom, the second side portion being located opposite to the first side portion, and further, each of the plurality of syringe plungers moves along the track without contacting the bottom of the base portion of the track. 《Aspect 16》 The method according to any one of embodiments 11 to 15, wherein the contact mechanism comprises a fluoropolymer material, optionally polytetrafluoroethylene. 《Aspect 17》 A track for a vibrating conveyor system, wherein the track is configured to support a plurality of syringe plungers, each of the plurality of syringe plungers having a contact mechanism, the contact mechanism being located between the top surface and the bottom surface of the syringe plunger, and the track is, A first shoulder portion having a first support surface that extends along the length of the aforementioned track and defines a first inner edge, and A second shoulder portion located opposite the first shoulder portion, extending along the length of the track and having a second support surface defining a second inner edge, A track for a vibratory motion conveyor system, comprising, wherein the first inner edge and the second inner edge are arranged to face each other, and the first support surface and the second support surface are configured to support the contact mechanism of each syringe plunger. 《Aspect 18》 The track according to embodiment 17, wherein each of the contact mechanisms of the plurality of syringe plungers is a periphery rib mechanism. 《Aspect 19》 The contact mechanism of each of the plurality of syringe plungers is a track, which is a substantially recessed portion of each syringe plunger, as described in embodiment 17. 《Appearance 20》 A track according to any one of embodiments 17 to 19, wherein a portion of each of the plurality of syringe plungers passes between the first inner edge of the first shoulder portion of the track and the second inner edge of the second shoulder portion. 《Aspect 21》 The track according to any one of embodiments 17 to 20, wherein the contact mechanism is positioned at a longitudinal distance from the respective center of mass of the syringe plunger that is shorter than the longitudinal distance between the respective bottom surface of the syringe plunger and the respective center of mass of the syringe plunger. 《Aspect 22》 A track according to any one of embodiments 17 to 21, wherein each syringe plunger has a center of mass, and the contact mechanism is located above the center of mass of each syringe plunger. 《Aspect 23》 A track for a vibratory motion conveyor system, wherein the track has a length configured to support a plurality of syringe plungers, each syringe plunger having at least one contact mechanism and a bottom surface, the at least one contact mechanism having a contact surface area smaller than the surface area of ​​the planar projection of the bottom surface, and the track is A first shoulder portion having a first support surface that extends along the length of the aforementioned track and defines a first inner edge, and A second shoulder portion located opposite the first shoulder portion, extending along the length of the track and having a second support surface defining a second inner edge, A track for an oscillating conveyor system, comprising, wherein the first inner edge and the second inner edge are arranged to face each other, and the first support surface and the second support surface are configured to support at least one contact mechanism of each syringe plunger. 《Aspect 24》 The track according to embodiment 23, wherein the contact surface region has a lower limit and an upper limit so as to reduce stiction between the contact surface region and the track. 《Appearance 25》 The track according to embodiment 23, wherein the contact surface area is 0.1% to 5% of the surface area of ​​the planar projection of the bottom surface of each plunger. 《Aspect 26》 The track according to embodiment 23 or embodiment 24, wherein the contact surface region has a ratio of 1.0% to 12.0% of the width defined between the first inner edge and the second inner edge. 《Aspect 27》 The track according to any one of embodiments 23 to 26, wherein the contact mechanism of each syringe plunger is the surrounding rib mechanism of each of the plurality of syringe plungers. 《Aspect 28》 A track for a vibrating conveyor system, wherein the track is configured to support a plurality of syringe plungers, each syringe plunger of the plurality of syringe plungers has one or more contact points with the track, each syringe plunger of the plurality of syringe plungers has a center of mass between its top surface and bottom surface, the one or more contact points are between the top surface and bottom surface, and the track is A first shoulder portion having a first support surface that extends along the length of the aforementioned track and defines a first inner edge, and A second shoulder portion located opposite the first shoulder portion, extending along the length of the track and having a second support surface defining a second inner edge, A track for an oscillating conveyor system, comprising, wherein the first inner edge and the second inner edge are arranged to face each other, and the first support surface and the second support surface are configured to support each syringe plunger at the at least one contact point. 《Aspect 29》 The track according to embodiment 28, wherein the one or more contact points are located closer in the longitudinal direction to the center of mass of each syringe plunger than the bottom surface of each syringe plunger is located relative to the center of mass of each syringe plunger. 《Aspect 30》 The track according to embodiment 28 or 29, wherein the one or more contact points are located above the center of mass of each syringe plunger.

Claims

1. A vibrating conveyor system comprising a plurality of syringe plungers, each having a contact mechanism and a track, wherein the track has a length configured to support the plurality of syringe plungers, each syringe plunger having a top, bottom, body and a contact mechanism extending from the body, the contact mechanism being a circumferential rib mechanism having a diameter, the contact mechanism being located between the top and bottom of the syringe plunger, and the track being, A first shoulder portion having a first support surface that extends along the length of the aforementioned track and defines a first inner edge, and A second shoulder portion located opposite the first shoulder portion, extending along the length of the track and having a second support surface defining a second inner edge, The first inner edge and the second inner edge are arranged to face each other, and the first support surface and the second support surface are configured to contact and support the contact mechanism of each syringe plunger such that a portion of each syringe plunger passes between the first inner edge and the second inner edge of the first support surface and the second support surface, respectively. A vibrating conveyor system in which a first inner edge and a second inner edge are rounded, the first inner edge defining a first radius of curvature, and the second inner edge defining a second radius of curvature not greater than the diameter of the surrounding rib mechanism.

2. The vibrating conveyor system according to claim 1, further comprising a base portion having a bottom, a first side portion extending from the bottom, and a second side portion extending from the bottom, wherein the second side portion is located opposite to the first side portion, and further, the first shoulder portion is located at the top of the first side portion, and the second shoulder portion is located at the top of the second side portion.

3. The vibrating conveyor system according to claim 2, wherein the base portion is U-shaped, and the first side portion and the second side portion extend perpendicularly from the bottom portion of the base portion.

4. The vibrating conveyor system according to claim 2 or 3, wherein the first inner edge and the second inner edge of the first shoulder portion and the second shoulder portion are aligned with the first side portion and the second side portion of the base portion.

5. The vibrating conveyor system according to claim 2 or 3, wherein the first inner edge and the second inner edge of the first shoulder portion and the second shoulder portion extend inward from the first side and the second side of the base portion such that the first edge and the second edge of the first shoulder portion and the second shoulder portion define a width that is narrowed with respect to the width between the first side and the second side of the base portion.

6. The vibrating conveyor system according to claim 4, wherein the first inner edge and the second inner edge of the first shoulder portion and the second shoulder portion are spaced apart from each other to define a width smaller than the maximum outer diameter of each syringe plunger of the plurality of syringe plungers.

7. A vibrating conveyor system including multiple syringe plungers, wherein the system is Vibration frequency generator, and, A track operably coupled to the vibration frequency generator, the track having a length configured to support a plurality of syringe plungers, each of the plurality of syringe plungers having a top, a bottom, a body, and a contact mechanism extending from the body which is a circumferential rib mechanism having a diameter, the contact mechanism being located between the top and bottom of the syringe plunger, The track includes, A first shoulder portion having a first support surface that extends along the length of the aforementioned track and defines a first inner edge, and A second shoulder portion located opposite the first shoulder portion, extending along the length of the track and having a second support surface defining a second inner edge, The first inner edge and the second inner edge are arranged to face each other, and the first support surface and the second support surface are configured to contact and support the contact mechanism of each syringe plunger such that a portion of each syringe plunger passes between the first inner edge and the second inner edge of the first support surface and the second support surface, respectively, and the bottom of each syringe plunger does not contact the track. A vibrating conveyor system in which a first inner edge and a second inner edge are rounded, the first inner edge defining a first radius of curvature, and the second inner edge defining a second radius of curvature not greater than the diameter of the surrounding rib mechanism.

8. The system according to claim 7, wherein the track further includes a base portion having a bottom, a first side portion extending from the bottom, and a second side portion extending from the bottom, the second side portion being located opposite to the first side portion, the first shoulder portion being located at the top of the first side portion, and the second shoulder portion being located at the top of the second side portion.

9. The system according to claim 8, wherein the base portion is U-shaped, and the first side portion and the second side portion extend perpendicularly from the bottom portion.

10. The system according to any one of claims 7 to 9, wherein the vibration frequency generator is operable to apply vibration frequencies between 1 and 180 Hz.

11. A method for transporting multiple syringe plungers using a vibrating conveyor system, wherein the method is: A plurality of syringe plungers are supplied to a track operably coupled to a vibration frequency generator, wherein each syringe plunger of the plurality of syringe plungers has a body and a contact mechanism extending from the body which is a circumferential rib mechanism having a diameter, and the track has a first shoulder portion extending along the track and a second shoulder portion extending along the track on the opposite side of the first shoulder portion. The contact mechanism of each of the plurality of syringe plungers is brought into contact with the first support surface of the first shoulder portion and the second support surface of the second shoulder portion, such that each syringe plunger extends between the first inner edge and the second inner edge of the first support surface and the second support surface of the second support surface, respectively, and the bottom of each syringe plunger does not come into contact with the track, and The vibration frequency generator vibrates the track so that the plurality of syringe plungers move along the track. Includes, A method wherein the first inner edge and the second inner edge are rounded, the first inner edge defining a first radius of curvature, and the second inner edge defining a second radius of curvature not greater than the diameter of the surrounding rib mechanism.

12. The method according to claim 11, wherein the track is vibrated at a frequency of 1 to 180 Hz.

13. The method according to claim 11 or 12, wherein the surrounding rib mechanism of each of the plurality of syringe plungers corresponds to the maximum outer diameter of each of the plurality of syringe plungers.

14. The method according to claim 11 or 12, wherein each of the plurality of syringe plungers does not contain silicone oil.

15. The method according to claim 11 or 12, wherein the track further includes a base portion having a bottom, a first side portion extending from the bottom, and a second side portion extending from the bottom, the second side portion being located opposite to the first side portion, and further each of the plurality of syringe plungers moves along the track without contacting the bottom of the base portion of the track.

16. The method according to claim 11 or 12, wherein the contact mechanism comprises a fluoropolymer material or a fluoropolymer material that is polytetrafluoroethylene.

17. A track for a vibratory motion conveyor system, comprising a plurality of syringe plungers and a track, wherein the track is configured to support the plurality of syringe plungers, each syringe plunger having a body and a contact mechanism extending from the body, the contact mechanism being positioned between the top and bottom surfaces of the syringe plunger, and the track is, A first shoulder portion having a first support surface that extends along the length of the aforementioned track and defines a first inner edge, and A second shoulder portion located opposite the first shoulder portion, extending along the length of the track and having a second support surface defining a second inner edge, The first inner edge and the second inner edge are arranged to face each other, and the first support surface and the second support surface are configured to bring the contact mechanisms of each syringe plunger into contact. A track for an oscillating conveyor system, wherein the first inner edge and the second inner edge are rounded, the first inner edge defining a first radius of curvature, and the second inner edge defining a second radius of curvature not greater than the diameter of the contact mechanism.

18. The track according to claim 17, wherein each of the contact mechanisms of the plurality of syringe plungers is a periphery rib mechanism.

19. The track according to claim 17, wherein each of the contact mechanisms of the plurality of syringe plungers is a substantially recessed portion of each syringe plunger.

20. The track according to any one of claims 17 to 19, wherein a portion of each of the plurality of syringe plungers passes between the first inner edge of the first shoulder portion of the track and the second inner edge of the second shoulder portion.

21. The track according to any one of claims 17 to 19, wherein the contact mechanism is positioned at a longitudinal distance from the respective center of mass of the syringe plunger that is shorter than the longitudinal distance between the respective bottom surface of the syringe plunger and the respective center of mass of the syringe plunger.

22. The track according to any one of claims 17 to 19, wherein each syringe plunger has a center of mass, and the contact mechanism is located above the center of mass of each syringe plunger.

23. A track for a vibratory motion conveyor system including a plurality of syringe plungers, each having a contact mechanism and a track, wherein the track has a length configured to support the plurality of syringe plungers, each syringe plunger having a body, at least one contact mechanism extending from the body and a bottom surface, the at least one contact mechanism having a contact surface area smaller than the surface area of ​​the planar projection of the bottom surface, and the track A first shoulder portion having a first support surface that extends along the length of the aforementioned track and defines a first inner edge, and A second shoulder portion located opposite the first shoulder portion, extending along the length of the track and having a second support surface defining a second inner edge, The first inner edge and the second inner edge are arranged to face each other, and the first support surface and the second support surface are configured to contact at least one contact mechanism of each syringe plunger. A track for an oscillating conveyor system, wherein the first inner edge and the second inner edge are rounded, the first inner edge defining a first radius of curvature, and the second inner edge defining a second radius of curvature not greater than the diameter of the contact mechanism.

24. The track according to claim 23, wherein the contact surface region has a lower limit and an upper limit so as to reduce stiction between the contact surface region and the track.

25. The track according to claim 23, wherein the contact surface region is 0.1% to 5% of the surface area of ​​the planar projection of the bottom surface of each plunger.

26. The track according to claim 23 or claim 24, wherein the contact surface region has a ratio of 1.0% to 12.0% of the width defined between the first inner edge and the second inner edge.

27. The track according to any one of claims 23 to 25, wherein the contact mechanism of each syringe plunger is the surrounding rib mechanism of each of the plurality of syringe plungers.

28. A track for a vibratory motion conveyor system including a plurality of syringe plungers, each having a contact mechanism and a track, wherein the track is configured to support the plurality of syringe plungers, each syringe plunger of the plurality of syringe plungers has one or more contact points with the track, each syringe plunger of the plurality of syringe plungers has a center of mass between its top surface and bottom surface, the one or more contact points are between the top surface and bottom surface, and the track is A first shoulder portion having a first support surface that extends along the length of the aforementioned track and defines a first inner edge, and A second shoulder portion located opposite the first shoulder portion, extending along the length of the track and having a second support surface defining a second inner edge, The first inner edge and the second inner edge are arranged to face each other, and the first support surface and the second support surface are configured to contact each syringe plunger at the at least one contact point. A track for an oscillating conveyor system, wherein the first inner edge and the second inner edge are rounded, the first inner edge defining a first radius of curvature, and the second inner edge defining a second radius of curvature not greater than the diameter of the contact mechanism.

29. The track according to claim 28, wherein the one or more contact points are located closer in the longitudinal direction to the center of mass of each syringe plunger than the bottom surface of each syringe plunger is located relative to the center of mass of each syringe plunger.

30. The track according to claim 28 or 29, wherein the one or more contact points are located above the center of mass of each syringe plunger.

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