Traps, adsorption mechanisms, and adsorption systems

Abstract

This invention provides a trap, adsorption mechanism, and adsorption system that can extend the maintenance cycle and shorten maintenance time in the event that liquid foreign matter enters the intake circuit. [Solution] A trap 40 is provided in an intake circuit that sequentially comprises an adsorption mechanism 10, a flow path component 20, and an intake source 30, and is used to collect liquid foreign matter that has entered from the adsorption mechanism 10. The trap 40 has a first opening 42 that opens to the adsorption mechanism 10 side and a second opening 46 that opens to the intake source 30 side, the first opening 42 side is formed as a protrusion 44 facing the adsorption mechanism 10 side, and has gaps 40c and 142f formed by the protrusion 44 and the inner surfaces of members 10 and 140 surrounding the outer surface of the protrusion 44, and the gaps 40c and 142f constitute a storage section for storing the liquid foreign matter.

Description

Technical Field

[0001] The present invention relates to a trap for collecting foreign matter (particularly, liquid foreign matter), an adsorption mechanism having the trap, and an adsorption system having the adsorption mechanism.

Background Art

[0002] When transporting an object such as a workpiece, gripping means or adsorption means are employed according to the characteristics of the object.

[0003] Among various means, as an example of the adsorption means, Patent Document 1 (Japanese Patent Application Laid-Open No. 2000-247306) discloses an apparatus including a vacuum pump and a plurality of suction cups connected to the vacuum pump and capable of adsorbing eggs. In addition, the above apparatus has a configuration in which a branch pipe is arranged in two stages in the suction path in consideration of the case where there are many suction cups.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] By the way, foreign matter (for example, liquid foreign matter such as oil or egg liquid) may adhere to the object, and not only the apparatus disclosed in Patent Document 1 but also known adsorption means may allow such foreign matter to enter the pipes constituting the suction path or the inside of the suction source. Particularly when liquid foreign matter enters, adhesion of the liquid foreign matter extends to the entire path including the pipes and the suction source, resulting in a problem that a large-scale maintenance requiring time for cleaning is necessary.

[0006] In contrast, even if filters are installed in the piping or at the suction source, the filters can quickly become clogged if liquid foreign matter enters them, sometimes requiring more frequent maintenance.

[0007] In other words, there was a need for a technology that would reduce the frequency of maintenance required when liquid foreign matter enters the adsorption mechanism, and that would allow maintenance to be performed quickly and easily when necessary. [Means for solving the problem]

[0008] The present invention has been made in view of the above circumstances, and aims to provide a trap, an adsorption mechanism, and an adsorption system that extend the maintenance cycle when liquid foreign matter enters, and that enable maintenance in a short time and easily.

[0009] The present invention solves the above problem by a solution described below as one embodiment.

[0010] In other words, the disclosed trap is provided in an intake circuit comprising an adsorption mechanism, a flow path component, and an intake source in that order, and is a trap for recovering liquid foreign matter that has entered from the adsorption mechanism, and comprises a first opening that opens to the adsorption mechanism side and a second opening that opens to the intake source side, wherein the first opening side is formed by a convex portion toward the adsorption mechanism side, and has a gap formed by the convex portion and the inner surface of a member surrounding the outer surface of the convex portion, and the gap constitutes a storage portion for storing the liquid foreign matter. This produces the following advantageous effects. That is, when liquid foreign matter enters, the liquid foreign matter is drawn toward the intake source side via the inner surface of the intake circuit, but the liquid foreign matter can be stored in the storage portion formed by the trap, and the maintenance cycle can be extended. Furthermore, even when maintenance is necessary, the area to which liquid foreign matter adheres in the intake circuit is narrowed, so maintenance time can be shortened and maintenance can be made easier.

[0011] Furthermore, the disclosed adsorption mechanism preferably consists of the trap described above, and the member is the adsorption mechanism.

[0012] Furthermore, the disclosed adsorption system preferably comprises the adsorption mechanism described above, the flow path component, and the intake source, and the trap is arranged such that the first opening faces downward.

[0013] Furthermore, the disclosed adsorption system comprises the trap described above, the adsorption mechanism, the flow path, and the intake source, wherein the member is the trap, and the trap is preferably arranged such that the first opening side faces downward. [Effects of the Invention]

[0014] According to the above embodiment, it is possible to extend the maintenance cycle and shorten the maintenance time when liquid foreign matter enters the intake circuit. [Brief explanation of the drawing]

[0015] [Figure 1] This is a schematic diagram of the adsorption system in the first embodiment of the present invention. [Figure 2] This is a front cross-sectional view of the trap and adsorption mechanism according to the first embodiment of the present invention. [Figure 3] This is a schematic diagram of the adsorption system in the second embodiment of the present invention. [Figure 4] This is a front cross-sectional view of the trap according to the second embodiment of the present invention. [Figure 5] Figure 5A is a front cross-sectional view of the traps in the third to fifth embodiments of the present invention. Figure 5B is a partial cross-sectional view (enlarged view) of the trap 240 in Figure 5A in the third embodiment. Figure 5C is a partial cross-sectional view (enlarged view) of the trap 340 in Figure 5A in the fourth embodiment. Figure 5D is a partial cross-sectional view (enlarged view) of the trap 440 in Figure 5A in the fifth embodiment. [Modes for carrying out the invention]

[0016] Hereinafter, each embodiment of the present invention will be described in detail with reference to the drawings. Figure 1 is an overall diagram (schematic diagram) of the adsorption system S1 in the first embodiment of the present invention. Figure 2 is an overall diagram (cross-sectional view) of the trap 40 and the adsorption mechanism 10 in the first embodiment of the present invention. Figure 3 is an overall diagram (schematic diagram) of the adsorption system S2 in the second embodiment of the present invention. Figure 4 is an overall diagram (cross-sectional view) of the trap 140 in the second embodiment of the present invention. Figure 5A is a front cross-sectional view of the traps 240, 340, and 440 in the third to fifth embodiments of the present invention. Figure 5B is a partial cross-sectional view (enlarged view) of the trap 240 of Figure 5A in the third embodiment. Figure 5C is a partial cross-sectional view (enlarged view) of the trap 340 of Figure 5A in the fourth embodiment. Figure 5D is a partial cross-sectional view (enlarged view) of the trap 440 of Figure 5A in the fifth embodiment. In all the figures used to explain each embodiment, the same reference numerals are used for members having the same function, and repeated explanations may be omitted.

[0017] <Common to all embodiments> <<Intake Circuit>> First, the intake circuit in each embodiment comprises one or more adsorption mechanisms 10, one or more flow path components 20, and one or more intake sources 30, which will be described later. In other words, the intake circuit in each embodiment is a concept that includes not only the flow path components 20 and the intake source 30, but also the adsorption mechanism 10. The adsorption mechanism 10 is connected to the intake source 30 via the flow path components 20, and by operating the intake source 30, the inside of the adsorption mechanism 10 is depressurized (in particular, negative pressure is generated), and it can adsorb and hold the target object (object to be adsorbed) X.

[0018] <<Objects to be adsorbed>> In each embodiment, the object to be adsorbed (hereinafter, may be simply referred to as "object X") is, for example, assumed to be food products (such as eggs), daily necessities, articles such as mechanical and electronic parts, or those packed with these, but object X is not limited to these. Also, object X in each embodiment includes quail eggs, chicken eggs, or duck eggs, etc. As another example, object X may be a workpiece that is adsorbed and held and subjected to predetermined processing. Also, the shape, properties, mass, etc. of object X are not limited. Object X in each embodiment may have liquid foreign substances (for example, liquid foreign substances such as oil and egg liquid) adhering to its surface.

[0019] <<Adsorption System>> As shown in FIGS. 1 and 3, the adsorption systems S1 and S2 in each embodiment include the above-described adsorption circuit and traps 40, 140, 240, 340, 440. That is, the adsorption systems S1 and S2 include an adsorption mechanism 10, a flow path component 20, an intake source 30, and traps 40, 140, 240, 340, 440. In the adsorption system S1, the traps 40, 240, 340, 440 are connected to the adsorption mechanism 10 and the flow path component 20. In other words, the traps 40, 240, 340, 440 are provided between the adsorption mechanism 10 and the flow path component 20. Also, in the adsorption system S2, the trap 140 is connected to the flow path component 20 and does not necessarily have to be directly connected to the adsorption mechanism 10.

[0020] <<Adsorption Mechanism>> In each embodiment, the adsorption mechanism 10 is, for example, configured to adsorb, hold, and move the above-described object X by decompression. The adsorption mechanism 10 has, as an example, a vacuum adsorption pad 10, and the adsorption mechanism (vacuum adsorption pad) 10 is arranged such that the opening side for adsorbing the object X faces downward. Here, "downward" not only refers to the vertically downward direction but also includes a state in which the adsorption mechanism (vacuum adsorption pad) 10 is inclined with respect to the horizontal plane.

[0021] The vacuum suction pad 10 is made of a resin material (for example, nitrile rubber, silicone rubber, polyurethane, or a special material for high temperatures), and as shown in Figure 2, it has a bellows shape 12 and a suction part 14. The vacuum suction pad 10 is formed with a thickness of several mm to 2 cm for the bellows shape 12 and the suction part 14, an opening diameter of several cm for the suction part 14, and an overall height of several tens of cm, but is not limited to this, and the material, size, and shape can be appropriately changed depending on the type, shape, properties, or mass of the object X. The vacuum suction pad 10 may also have a flat or oval shape without a bellows shape. The vacuum suction pad 10 is configured to hold the object X by suction (especially upper suction) by pressing the area around the opening of the suction part 14 against the object X without any gaps and drawing air from the intake port 16 side.

[0022] Furthermore, the suction mechanism (vacuum suction pad) 10 has an engaging portion 16a formed inside the intake port 16 into which the traps 40, 240, 340, and 440 engage. The engaging portion 16a is, for example, an annular (circular) recess that can engage with the engaging portion 40b of the trap, which will be described later, but is not limited to this. As another example, the engaging portion 16a is a threaded portion with a female screw thread.

[0023] Each embodiment of the suction mechanism 10 includes a moving mechanism 18. Note that in Figures 1 and 3, some parts of the moving mechanism 18 are omitted from the illustration. The moving mechanism 18 is configured, for example, as an assembly / transport robot or extraction machine, such as a SCARA robot with a robotic arm. A vacuum suction pad 10 is positioned at the tip of this moving mechanism 18 (for example, by screw fastening). The inside of the moving mechanism 18 is in communication with the suction mechanism 10 and the flow path component 20. The moving mechanism 18 has a communication hole (not shown) that communicates with the flow path component 20. The moving mechanism 18 can suction, hold, and transport an object X while maintaining a downward orientation for the suction mechanism 10 (i.e., the traps 40, 240, 340, 440).

[0024] <<Flow channel components>> In each embodiment, the flow path component 20 is a component that constitutes the flow path of the adsorption circuit (i.e., adsorption systems S1, S2), and specifically includes one or more pipes, valves (check valves, solenoid valves, throttle valves, etc.), or fittings. Furthermore, if the flow path component 20 includes a solenoid valve, the solenoid valve has the function of switching between a position that reduces the pressure of the vacuum adsorption pad 10 (generates negative pressure) and a position that opens the vacuum adsorption pad 10 to the atmosphere. In addition to the above examples, the flow path component 20 may also include a vacuum breaking unit, a vacuum filter, a pressure sensor, a silencer, etc., but in particular, in the adsorption system S2, a pipe (especially a tube made of resin material) is assumed as the flow path component 20 to which the trap 140 is connected. By drawing in air through the flow path component 20, the pressure can be reduced from the intake source 30 to the adsorption mechanism 10 side.

[0025] <<Intake source>> In each embodiment, the intake source 30 is, for example, a vacuum exhaust source such as a vacuum pump, but is not limited to this. For example, the vacuum exhaust source 30 creates a vacuum of about -20 kPa, and reduces the pressure (generates negative pressure) inside the suction mechanism (vacuum suction pad) 10 and on the suction part 14 side via the flow path component 20 described above.

[0026] <<Trap>> Next, the traps 40, 140, 240, 340, and 440 in each embodiment will be described in order. The traps 40, 140, 240, 340, and 440 are provided in an intake circuit that sequentially includes the adsorption mechanism 10, the flow path component 20, and the intake source 30 described above, and are configured to recover liquid foreign matter that has entered through the adsorption mechanism 10.

[0027] <First Embodiment> In the first embodiment, the trap 40 is formed as a tube shape, for example, with a length of several centimeters to several tens of centimeters and a diameter of several centimeters, and is made of a metal or resin material. It has a first opening 42 that opens to the adsorption mechanism 10 side and a second opening 46 that opens to the intake source 30 side. That is, the trap 40 has a flow path (particularly a cylindrical flow path) 40a that connects the first opening 42 and the second opening 46. In the first embodiment, the trap 40 engages with an engaging portion 16a inside the intake port 16 of the adsorption mechanism (vacuum adsorption pad) 10, so the tube shape is formed to have the same diameter as the intake port 16. However, the tube shape may be formed to have a larger diameter than the intake port 16, in which case, when the trap 40 is connected to the adsorption mechanism 10, the inside of the adsorption mechanism 10 on the intake port 16 side will be expanded in diameter. Furthermore, the first opening 42 and the second opening 46 are opened as circular holes of several millimeters to 2 cm, but are not limited to this.

[0028] An engaging portion 40b is formed on the outer surface of the trap 40 (particularly at the center of the outer surface). The engaging portion 40b is, for example, an annular (circular) protrusion that can engage with the engaging portion 16a, which is an annular recess as described above, but is not limited to this. As another example, if the engaging portion 16a is a threaded portion as a female screw, the engaging portion 40b is a threaded portion into which a male screw is threaded.

[0029] Furthermore, an annular (circular) locking portion 52 may be formed on the outer surface of the trap, above the engaging portion 40b. This allows the trap 40 to be connected to a predetermined position on the suction mechanism (vacuum suction pad) 10.

[0030] Furthermore, the trap 40 has a protrusion 44 formed on the side of the first opening 42 that faces the side of the adsorption mechanism 10. In the first embodiment, the protrusion 44 is one end of a tubular shape.

[0031] Furthermore, the trap 40 has a gap 40c formed by the protrusion 44 and the inner surface of the member (in the first embodiment, the vacuum suction pad 10) surrounding the outer surface of the protrusion 44, and the gap 40c constitutes a storage section 50 for storing liquid foreign matter. That is, the trap 40 and the suction mechanism (vacuum suction pad) 10 form a double cylindrical structure. Liquid foreign matter is sucked up along the inner surface of the suction mechanism (vacuum suction pad) 10, and because the trap 40 constitutes the storage section 50, the liquid foreign matter is stored in the storage section 50, and as time passes, the liquid foreign matter naturally falls out, thus preventing the entry of liquid foreign matter into the first opening 42. Therefore, it is possible to extend the maintenance cycle of the suction system, shorten the maintenance time, and make maintenance easier.

[0032] It is preferable that the trap 40 is arranged such that the first opening 42 described above faces downward. Furthermore, it is preferable that the adsorption mechanism 10 having the trap 40 is arranged such that the first opening 42 faces downward. Moreover, it is preferable that the adsorption system S1 having the adsorption mechanism 10 is arranged such that the first opening 42 faces downward. With these configurations, liquid foreign matter can be reliably stored in the storage section 50.

[0033] A tapered insertion portion 48 that gradually increases in diameter toward the intake source 30 side (specifically, the upper side) may be formed on the outer surface of the protrusion 44. The outer diameter of the insertion portion 48 is not particularly limited, but it is preferable that the maximum outer diameter is approximately the same as the inner diameter at the position where the gap 40c of the suction mechanism (vacuum suction pad) 10 is created. By having the insertion portion 48 on the protrusion 44, the suction mechanism 10 can be expanded in diameter when connected to the suction mechanism 10, and furthermore, the suction of liquid foreign matter stored in the storage portion 50 toward the intake port 16 side and the detachment of the trap 40 from the suction mechanism (vacuum suction pad) 10 can be prevented.

[0034] <Second Embodiment> Unlike the trap 40 in the first embodiment, the trap 140 in the second embodiment is formed in a double-tube shape. The trap 140 may also function as a pipe fitting. Specifically, the trap 140 comprises a first main body member 144 which serves as the housing of the fitting, a convex member 142 connected to the inside of the first main body member 144 and having a first opening 142a that opens to the adsorption mechanism 10 side and a second opening 142b that opens to the intake source 30 side, and a second main body member 146 connected to the adsorption mechanism 10 side of the first main body member 144 and serving as the housing of the fitting.

[0035] The first main body member 144 is formed, for example, from a resin material into a tubular shape with a length of several centimeters to several tens of centimeters and a diameter of several centimeters. On the inner surface of the tubular shape on the intake source 30 side of the first main body member 144, an engaging portion 144a is formed, into which the convex member 142 engages. Furthermore, on the inner surface of the tubular shape on the adsorption mechanism 10 side of the first main body member 144, an engaging portion 144b is formed, into which the second main body member 146 engages. The engaging portions 144a and 144b may, for example, be projections (e.g., annular projections along the inner surface of the tubular shape or projections provided at equal intervals) or recesses (e.g., annular recesses along the inner surface of the tubular shape), or combinations thereof, but are not limited to these.

[0036] The convex member 142 is formed, for example, in a tubular shape with a step on its outer surface using a resin material or a metal material. Furthermore, an engaging portion 142d is provided on the outer surface of the large-diameter portion of the convex member 142, which engages with the engaging portion 144a of the first main body member 144. The engaging portion 142d only needs to be configured to engage with the engaging portion 144a; for example, it could be a protruding portion (annular protruding portion). Additionally, an annular recess 142e is formed on the suction mechanism 10 side of the engaging portion 142d, into which an O-ring 172 is fitted.

[0037] Furthermore, the small-diameter portion of the convex member 142 is the convex portion 142c. That is, the trap 140 has a gap 142f formed by the convex portion 142c and the inner surface of the member (first main body member 144 in the second embodiment) surrounding the outer surface of the convex portion 142c, and the gap 142f constitutes a storage portion 148 for storing liquid foreign matter. The convex member 142 also has a first opening 142a where the tip of the convex portion 142c opens toward the adsorption mechanism 10, and a second opening 142b where the large-diameter portion opens toward the intake source 30, and the first opening 142a and the second opening 142b are in communication. Similar to the trap 40 of the first embodiment, the trap of the second embodiment constitutes the storage portion 148, allowing liquid foreign matter to be stored in the storage portion 148, thereby extending the maintenance cycle of the adsorption system, shortening maintenance time, and facilitating maintenance.

[0038] Furthermore, the convex member 142 is provided with a first sealing member 150, a first stopper 152, a first locking claw 154, a first guide cylinder 156, and a first release body 158 in that order inside the tubular shape on the second opening 142b side of the trap 142, and these constitute the outlet port of the trap 140.

[0039] The first sealing member 150 is, for example, a through-tube or ring-shaped elastic sealing member made of an elastic material such as synthetic rubber, and has the function of sealing the inside of the convex member 142 and preventing gas from entering from the outside. The first sealing member 150 may also be formed in a tapered shape on its inner circumferential surface, gradually increasing in diameter from the adsorption mechanism 10 side toward the intake source 30 side. Furthermore, the first sealing member 150 may have a stepped circumferential groove 150a on the contact surface that abuts against the convex member 142 in the axial direction of the tubular shape. Note that the side of the convex member 142 toward the intake source 30 side of the second opening 142b of the convex member 142 may have a stepped shape so that the first sealing member 150 can abut against the convex member 142 in the axial direction of the tubular shape.

[0040] The first stopper 152 is formed in the shape of a ring, for example, made of a resin material or a metal material. The first stopper 152 is fitted into a recess 156a, which is the inner circumferential surface of the first guide cylinder 156. The first stopper 152 may be formed in a tapered shape, where a part of the inner circumferential surface on the intake source 30 side gradually widens in diameter from the adsorption mechanism 10 side toward the intake source 30 side. The first stopper 152 has the function of preventing excessive deformation of the first locking claw 154, which will be described later.

[0041] The first locking claw 154 is, for example, formed in the shape of a through-tube made of a metal material, and has a claw portion 154a on the outer circumference on the intake source 30 side that is bent inward. The first locking claw 154 is also fitted into the inner circumferential surface of the first guide cylinder 156. When the intake circuit is operated, the claw portion 154a of the first locking claw 154 is radially expanded by the tube (particularly a tubular tube made of resin material) which is a flow path component, but when a force is applied to the tube in the direction of dislodgement, the claw portion 154a bites into the outer surface of the tube, preventing the tube from being dislodged.

[0042] The first guide cylinder 156 is formed, for example, as a through-tube made of a metal material and is press-fitted into the inner circumferential surface of the convex member 142. The first guide cylinder 156 functions as a pipe insertion port. The adsorption mechanism 10 side of the first guide cylinder 156 has an annular recess 156a into which the first stopper 152 and the first locking claw 154 described above are fitted. Furthermore, a claw portion 156b that engages with the inner surface of the convex member 142 is formed on the outer surface of the first guide cylinder 156. In addition, a fillet 156c is formed at the end of the first guide cylinder 156 on the intake source 30 side, and the first guide cylinder 156 is press-fitted until the fillet 156c abuts against the end of the convex member 142 on the intake source 30 side. Furthermore, an engaging portion 156d is formed on the inner circumferential surface of the first guide cylinder 156, on the intake source 30 side, which engages with the first release body 158, described later. The engaging portion 156d is, for example, a stepped portion, but is not limited to this.

[0043] The first release body 158 is formed, for example, as a through-tube made of resin material and is slidably inserted into the inner circumferential surface of the first guide tube 156. The end of the first release body 158 on the adsorption mechanism 10 side has an engaging portion 158a that engages with the first guide tube 156. The engaging portion 158a is formed, for example, as a snap-fit ​​type claw portion 158a. By sliding the first release body 158 toward the adsorption mechanism 10 side, the claw portion 158a releases the first locking claw 154, allowing the tube to be removed from the trap 140. A fillet 158b is formed at the end of the first release body 158 on the intake source 30 side.

[0044] The second main body member 146 is formed, for example, from a resin material into a tubular shape with a length of several centimeters and a diameter of several centimeters. Similarly, the second main body member 146 is also provided with a second sealing member 160, a second stopper 162, a second locking claw 164, a second guide cylinder 166, and a second release body 168 in that order. An O-ring 174 is also provided between the second main body member 146 and the first main body member 144. Furthermore, an engaging portion (for example, an annular engaging portion) 146a is provided on the outside of the second main body member 146, on the intake source 30 side. Each of these members constitutes the inlet port of the trap 140, but a detailed explanation is omitted here.

[0045] <Third Embodiment> The trap 240 in the third embodiment has a different shape of protrusion compared to the trap 40 in the first embodiment and the trap 140 in the second embodiment. The differences from the trap 40 in the first embodiment will be explained in the third embodiment. The configuration of the protrusion 44 in the third embodiment can also be applied to the protrusion 142c of the trap 140 in the second embodiment.

[0046] Figure 5B is an enlarged view of a part of the trap 40 and adsorption mechanism 10 (the area enclosed by the dashed circle) in Figure 5A. In the third embodiment, the trap 240 is provided with an annular portion 44b on at least a part of the outer surface of the protrusion 44. The annular portion 44b may be integrally formed with the protrusion 44 or may be provided as a separate part. The annular portion 44b is an annular portion, and the tip may be formed in a tapered shape that gradually widens in diameter from the adsorption mechanism 10 side toward the intake source 30 side. With the above configuration, backflow of liquid foreign matter can be prevented.

[0047] <Fourth Embodiment> The trap 340 in the fourth embodiment has a different shape of protrusion compared to the trap 40 in the first embodiment and the trap 140 in the second embodiment. The differences from the trap 40 in the first embodiment will also be explained in the fourth embodiment. Note that the configuration of the protrusion 44 in the fourth embodiment can also be applied to the protrusion 142c of the trap 140 in the second embodiment.

[0048] Figure 5C is an enlarged view of a part of the trap 40 and adsorption mechanism 10 (the area enclosed by the dashed circle) in Figure 5A. In the fourth embodiment, the trap 340 has a smaller diameter on the side of the flow path 40a that is on the side that is on the side that is on the side that is on the side that is on the intake source 30. With this configuration, the intrusion of liquid foreign matter can be suppressed.

[0049] <Fifth Embodiment> The trap 440 in the fifth embodiment has a different shape of protrusion compared to the trap 40 in the first embodiment and the trap 140 in the second embodiment. The differences from the trap 40 in the first embodiment will also be explained in the fifth embodiment. Note that the configuration of the protrusion 44 in the fifth embodiment can also be applied to the protrusion 142c of the trap 140 in the second embodiment.

[0050] Figure 5D is an enlarged view of a part of the trap 40 and adsorption mechanism 10 (the area enclosed by the dashed circle) in Figure 5A. In the fifth embodiment, the trap 440 is equipped with an intrusion prevention member 54 at a position spaced apart from the tip of the protrusion 44. The intrusion prevention member 54 is formed of a metal or resin material, for example, and has a main part 54a, a shaft part 54b, and an insertion part 54c. The main part 54a is formed in the shape of a disc with a diameter equal to or greater than that of the protrusion 44. The shaft part 54b is formed in the shape of a cylinder with a smaller diameter than the flow path 44a. Furthermore, the insertion part 54c is formed in the shape of a cylinder with a diameter equal to or greater than that of the flow path 44a and has a predetermined flow path (not shown) along the axial direction of the trap 440. The insertion part 54c is inserted into the flow path 44a (for example, by fitting or press-fitting). With the above configuration, the intrusion of liquid foreign matter can be suppressed.

[0051] It should be noted that the present invention is not limited to the embodiments described above, and various modifications are possible without departing from the scope of the present invention. [Explanation of Symbols]

[0052] 10 Adsorption mechanism 20 Flow channel components 30 Intake source 40 traps 42 First opening 44 Convex part 44a Channel 44c gap 46. ​​Second opening 48 Ring section 54 Intrusion prevention member 140 Traps 142f gap 240 traps 340 Traps 440 Traps X Object

Claims

1. A trap provided in an intake circuit comprising, in order, an adsorption mechanism, a flow path component, and an intake source, for collecting liquid foreign matter that has entered through the adsorption mechanism, A first opening that opens towards the adsorption mechanism, It comprises a second opening that opens to the intake source side, The first opening side is formed as a convex portion facing the adsorption mechanism side, The protrusion has a gap formed by the inner surface of the member surrounding the outer surface of the protrusion, and the gap constitutes a storage portion for storing the liquid foreign matter. A trap characterized by the following.

2. The first opening is arranged to face downwards. The trap according to claim 1, characterized by the following:

3. The first opening is formed at the tip of the protrusion. The trap according to claim 1, characterized by the following:

4. The outer surface of the aforementioned protrusion is further provided with an annular portion, at least a portion thereof. The trap according to claim 1, characterized by the following:

5. An intrusion prevention member is further provided at a position spaced apart from the tip of the aforementioned protrusion. The trap according to claim 1, characterized by the following:

6. The flow path connecting the first opening and the second opening is formed to have a smaller diameter on the adsorption mechanism side than on the intake source side. The trap according to claim 1, characterized by the following:

7. The trap is provided according to any one of claims 1 to 6, The aforementioned member is the adsorption mechanism. An adsorption mechanism characterized by the following.

8. The adsorption mechanism according to claim 7, the flow path component, and the intake source are provided, The trap is configured to be positioned such that the first opening faces downwards. An adsorption system characterized by the following.

9. The trap comprises the trap according to any one of claims 1 to 6, the adsorption mechanism, the flow path, and the intake source, The aforementioned member is the trap. The trap is configured to be positioned such that the first opening faces downwards. An adsorption system characterized by the following.

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