Filtering canister

Abstract

A filter tank has at least one chamber and a resin member. The resin member is disposed in a target chamber, which is any of the at least one chamber. An adsorbent disposed in the target chamber is formed as a plurality of granular members. The resin member is a resin-made member formed integrally and has a connection portion and at least one rod-like unit. The rod-like unit has a plurality of rod-like portions extending from the connection portion in a direction substantially parallel to a direction intersecting a flow direction of a gas in the target chamber at an angle of 45° or more and 90° or less.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to a filter can that adsorbs fuel vapor generated from a fuel tank. BACKGROUND

[0002] In the filter can of Japanese Patent Application Publication No. 2018-96254, an object chamber is provided, and an adjustment member is arranged inside the object chamber. The adjustment member has a plurality of rod-shaped portions and a coupling portion that couples the root portions of the plurality of rod-shaped portions. The plurality of rod-shaped portions extend substantially parallel to the flow direction of gas and are arranged in the entire object chamber with a space therebetween. Further, the granular adsorbent, i.e., the granules of activated carbon, arranged in the object chamber create gaps between the rod-shaped portions, and thus the ventilation resistance of the object chamber can be suppressed.

[0003] Here, it is conceivable to manufacture the adjustment member from resin by injection molding. Further, in order to perform injection molding, it is necessary to incline the outer peripheral surface of each rod-shaped portion in such a manner that each rod-shaped portion becomes thinner as it moves away from the coupling portion, thereby forming a draft taper on the outer peripheral surface of each rod-shaped portion, so that the adjustment member can be extracted from the mold. SUMMARY

[0004] However, if the plurality of rod-shaped portions are long, it is necessary to further thicken the root portions of the plurality of rod-shaped portions when forming the draft taper, and thus heat tends to accumulate around the root portions of the plurality of rod-shaped portions during injection molding.

[0005] That is, generally, a cooling pipe through which a cooling medium for cooling a molded member flows is arranged inside a mold for injection molding. However, since the rod-shaped portions of the adjustment member are narrow in the space between them, in the mold for the adjustment member, although a cooling pipe can be arranged around the adjustment member, it is difficult to arrange the cooling pipe so as to pass between the rod-shaped portions.

[0006] Therefore, the root portions of the rod-shaped portions that are thickened due to the draft taper are difficult to be cooled compared to other portions. As a result, a temperature deviation occurs around the root portions of the plurality of rod-shaped portions, and thus the rod-shaped portions are inclined (hereinafter, also referred to as warped). Therefore, if the plurality of rod-shaped portions are long, it is difficult to manufacture the adjustment member.

[0007] It is desirable in one aspect of the present disclosure to easily manufacture a filter can.

[0008] One aspect of the present disclosure relates to a filter can configured to be mounted on a vehicle having an engine, the filter can including at least one chamber, a flow inlet, an atmosphere inlet, a flow outlet, and a resin member. An adsorbent that adsorbs fuel vapor is disposed in the at least one chamber. The flow inlet is configured to cause fuel vapor to flow from a fuel tank of the vehicle into the at least one chamber. The atmosphere inlet is configured to cause atmosphere to flow from outside of the vehicle into the at least one chamber. The flow outlet is configured to cause fuel vapor that has been adsorbed by the adsorbent to flow toward the engine by means of the atmosphere that flows in from the atmosphere inlet. The resin member is disposed in a target chamber, which is any one of the at least one chamber. The adsorbent disposed in the target chamber is formed as a plurality of granular members. The resin member is a resin member formed integrally, and has a connecting portion and at least one rod-shaped unit. The rod-shaped unit has a plurality of rod-shaped portions that extend from the connecting portion along an extension direction that is substantially parallel to a direction that intersects a flow direction of gas in the target chamber at an angle of 45° or more and 90° or less.

[0009] According to the above configuration, it is possible to both dispose the plurality of rod-shaped portions in the entire region of the target chamber and promote shortening of the plurality of rod-shaped portions, and thus it is possible to suppress a case where the root of the rod-shaped portion becomes thick due to formation of a demolding taper. Therefore, it is possible to suppress a case where the rod-shaped portion warps at the time of injection molding of the resin member, and thus it is easy to manufacture the filter can.

[0010] In one aspect of the present disclosure, the target chamber can have an elongated shape that extends along a flow direction of gas in the target chamber.

[0011] According to the above configuration, it is possible to further promote shortening of the plurality of rod-shaped portions, and thus it is possible to suppress a case where the root of the rod-shaped portion becomes thick due to formation of a demolding taper. Therefore, it is possible to further suppress a case where the rod-shaped portion warps at the time of injection molding of the resin member.

[0012] In one aspect of the present disclosure, an outer peripheral surface of at least a portion of the plurality of rod-shaped portions can be formed with at least one recess.

[0013] According to the above configuration, a gap is formed between the recess formed in the rod-shaped portion and the adsorbent that is the plurality of granular members. Therefore, it is possible to suppress ventilation resistance of the filter can.

[0014] In one aspect of the present disclosure, the resin member can have a first rod-shaped unit and a second rod-shaped unit as the at least one rod-shaped unit. The connecting portion can have a first portion and a second portion. The second portion is located on an opposite side of the first portion. The plurality of rod-shaped portions of the first rod-shaped unit can extend substantially in parallel from the first portion to a direction specified in correspondence with the first rod-shaped unit. The plurality of rod-shaped portions of the second rod-shaped unit can extend substantially in parallel from the second portion to a direction specified in correspondence with the second rod-shaped unit.

[0015] According to the above configuration, the first rod-shaped unit and the second rod-shaped unit can be formed by a mold located on both sides of the connection portion at the time of injection molding. Further, the plurality of rod-shaped portions of each of the first rod-shaped unit and the second rod-shaped unit extend in different extension directions from the connection portion located between the above rod-shaped units. Therefore, it is possible to arrange the plurality of rod-shaped portions in the entire region of the object chamber, and it is possible to further promote the shortening of the plurality of rod-shaped portions of each rod-shaped unit. Thus, it is possible to further suppress the occurrence of warping of the rod-shaped portions at the time of injection molding of the resin member.

[0016] In one aspect of the present disclosure, the first rod-shaped unit and the second rod-shaped unit can have substantially the same shape.

[0017] According to the above configuration, it is possible to simplify the structure of the resin member, and it is easy to manufacture the resin member.

[0018] In one aspect of the present disclosure, the resin member can have a shape that is substantially face-symmetrical about a face passing through the connection portion.

[0019] According to the above configuration, it is possible to simplify the structure of the resin member, and it is easy to manufacture the resin member.

[0020] In one aspect of the present disclosure, the extension directions of the plurality of rod-shaped portions can be directions intersecting the flow direction of the gas in the object chamber at an angle of substantially 90°.

[0021] According to the above configuration, it is possible to further promote the shortening of the plurality of rod-shaped portions, and thus, it is possible to suppress the thickening of the roots of the rod-shaped portions due to the formation of a draft angle. Therefore, it is possible to further suppress the occurrence of warping of the rod-shaped portions at the time of injection molding of the resin member.

[0022] In one aspect of the present disclosure, both ends of the resin member in the flow direction of the gas can be located near the inner wall of the object chamber.

[0023] According to the above configuration, the resin member is arranged from the first end to the second end in the flow direction of the gas in the object chamber, and thus, it is possible to suppress the ventilation resistance of the filter can.

[0024] In one aspect of the present disclosure, the connection portion can extend in the flow direction of the gas.

[0025] According to the above configuration, it is possible to appropriately arrange the plurality of rod-shaped portions in the object chamber. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 is a cross-sectional view when the filter can is viewed from the side.

[0027] Figure 2 is a front view of the resin member.

[0028] Figure 3 is a side view of the resin member.

[0029] Figure 4 is a bottom view of the resin member as viewed from the first end side.

[0030] Figure 5 is a sectional view of the first rod-shaped portion 51 formed with a recess.

[0031] Figure 6 is a sectional view of the first rod-shaped portion 51 formed with a recess.

[0032] Figure 7 is an explanatory view for explaining injection molding of the resin member.

[0033] Figure 8 is a front view of the resin member of a modification example.

[0034] Figure 9 is a front view of the resin member of a modification example. DETAILED DESCRIPTION

[0035] Embodiments of the present disclosure will be described below with reference to the accompanying drawings.

[0036] Embodiments of the present disclosure are not limited to the following embodiments, and various embodiments can be taken within the technical scope of the present disclosure.

[0037] [1. Configuration of filter can]

[0038] The filter can 1 of the first embodiment is installed in a vehicle (refer to Figure 1 ). Hereinafter, the vehicle in which the filter can 1 is installed will be referred to as the subject vehicle. The filter can 1 has a container 10 made of synthetic resin, and the container 10 is provided with first to third chambers 20 to 40 in which adsorbents 60 to 62 for adsorbing fuel vapor are respectively arranged. Note that the number of chambers of the filter can 1 may, for example, be two or less or four or more.

[0039] The adsorbent 61 of the second chamber 30 is composed of granular activated carbon, i.e., pellets. Note that the adsorbent 61 of the second chamber 30 can also be composed of a granular adsorbent other than the pellets. Further, the adsorbents 60 of the first chamber 20 and 62 of the third chamber 40 may, for example, be composed of powdery activated carbon or can be composed of pellets. Further, as one example, the adsorbent 62 of the third chamber 40 can be composed of honeycomb carbon. The honeycomb carbon has a cylindrical side wall and is arranged in the third chamber 40 in a state of extending in the flow direction of gas. Further, a plurality of flow paths extending through the honeycomb carbon in the extending direction are provided on the inner side of the side wall. Further, the adsorbents 60 to 62 of the first to third chambers 20 to 40 can also be composed of a material other than activated carbon.

[0040] The end portion of the container 10 is provided with a flow inlet 11, a flow outlet 12, and an atmosphere port 13. The flow inlet 11 and the flow outlet 12 communicate the inside of the first chamber 20 with the outside of the container 10, and the atmosphere port 13 communicates the inside of the third chamber 40 with the outside of the container 10.

[0041] Hereinafter, the side of the container 10 of the filter can 1, on which the flow inlet 11, the flow outlet 12, and the atmosphere port 13 are provided, is referred to as a port side. Further, the container 10 has an opening on the side opposite to the port side. The opening is closed by a lid member 14. Hereinafter, the side opposite to the port side, in other words, the side on which the lid member 14 is provided, is referred to as a lid side.

[0042] The flow inlet 11 is connected to a fuel tank of an engine of the host vehicle. Fuel vapor generated in the fuel tank flows into the inside of the filter can 1 via the flow inlet 11, and is adsorbed in the adsorbents 60 to 62 of the respective chambers. Thereby, fuel is accumulated in the inside of the filter can 1.

[0043] Further, the flow outlet 12 is connected to an intake pipe of the engine of the host vehicle, and the atmosphere port 13 communicates with the outside of the host vehicle. Also, air (in other words, purge air) flows into the inside of the filter can 1 via the atmosphere port 13 by means of intake negative pressure of the engine. By the flow-in of the purge air, fuel adsorbed in the adsorbents 60 to 62 is desorbed, and the desorbed fuel and the purge air collectively flow out from the flow outlet 12 toward the intake pipe. Thereby, purge is performed to remove fuel adsorbed in the adsorbents 60 to 62, and the adsorbents 60 to 62 are regenerated.

[0044] That is, fuel vapor that has flowed in from the flow inlet 11, fuel vapor that flows out from the flow outlet 12 at the time of purge, and purge air that flows in from the atmosphere port 13 at the time of purge flow in the respective chambers 20 to 40 in a direction in which the end portion of the port side and the end portion of the lid side face each other.

[0045] As one example, the first chamber 20 is a substantially rectangular parallelepiped shape, and has an elongated shape extending from the lid side toward the port side, and the end portion of the port side of the first chamber 20 is connected to the flow inlet 11 and the flow outlet 12. Further, the end portions of the port side and the lid side of the first chamber 20 are respectively provided with filters 21, 22, and the adsorbent 60 is disposed between the filters 21, 22.

[0046] Further, the end portion of the lid side of the first chamber 20 is connected to a passage 15. The passage 15 is provided along the lid member 14, and communicates the first chamber 20 and the second chamber 30. Also, the filter 22 of the lid side of the first chamber 20 and the passage 15 are provided with a porous plate 23 having permeability therebetween, and a coil spring 16 is disposed between the porous plate 23 and the lid member 14. The coil spring 16 presses the porous plate 23 toward the port side. Therefore, in the inside of the filter can 1, fluid can reciprocate between the first chamber 20 and the second chamber 30 via the passage 15.

[0047] Furthermore, both chamber 20 and chamber 30 are adjacent to chamber 10 and have an elongated shape extending from the cover side to the opening side. As an example, the L / D ratio of chamber 20 and / or chamber 30 can be greater than 1. Furthermore, L refers to the length of the chamber in the gas flow direction, and D refers to the equivalent diameter of the cross-section of the chamber orthogonal to the gas flow direction. Furthermore, chambers 20 and 30 are arranged end-to-end from the cover side to the opening side, and are separated by a permeable, plate-shaped partition 18. Therefore, fluid can travel between the interior spaces of chamber 20 and chamber 30 through the partition 18.

[0048] Furthermore, a filter 31 is provided at the end of the second chamber 30 on the cover side, and an adsorbent 61 is disposed between the filter 31 and the partition member 18. Additionally, a filter 41 is provided at the end of the third chamber 40 on the opening side, and an adsorbent 62 is disposed between the filter 41 and the partition member 18.

[0049] Furthermore, a permeable perforated plate 32 is disposed between the filter 31 and the channel 15 on the cover side of the second chamber 30, and a coil spring 17 is disposed between the perforated plate 32 and the cover member 14. The coil spring 17 presses the perforated plate 32 toward the opening side. In addition, the opening side end of the third chamber 40 is connected to the atmospheric opening 13.

[0050] [2. Resin Components]

[0051] In this embodiment, as an example, the second chamber 30 is configured as an object chamber, and a resin component 5 (see reference) is disposed in the second chamber 30. Figure 1 Alternatively, either chamber 1 20 or chamber 3 40 can be configured as the target chamber for the resin component 5, or two or more of chambers 1 20 to 3 40 can be configured as target chambers. Furthermore, a granular adsorbent, such as granules, can be disposed in the target chamber.

[0052] The resin component 5 is positioned in the second chamber 30 such that the first end 5A of the resin component 5 is located on the opening side and the second end 5B is located on the cover side (see reference). Figures 2-4 Furthermore, the first end 5A of the resin component 5 is located near the inner wall of the opening side end of the object chamber, and the second end 5B is located near the inner wall of the cover side end of the object chamber. However, it is also possible to arrange the resin component 5 in the second chamber 30 in the opposite manner, such that the second end 5B of the resin component 5 is located on the opening side and the first end 5A is located on the cover side.

[0053] The resin component 5 is integrally formed of resin and includes a first rod-shaped unit 50, a second rod-shaped unit 52, and a connecting portion 54.

[0054] [3. First and second rod-like units]

[0055] The first rod-like unit 50 has a plurality of first rod-like portions 51 (refer to Figures 2-4 ). The plurality of first rod-like portions 51 are elongated portions extending substantially in parallel with each other with a space therebetween and having substantially the same length, and extend from the first portion 54A of the linking portion 54 toward the first extension direction 51A. Further, a draft taper is formed on each of the first rod-like portions 51, so that each of the first rod-like portions 51 is tapered as it approaches the tip end. Further, as one example, a cross section of each of the first rod-like portions 51 orthogonal to the extension direction (hereinafter simply referred to as a cross section) is substantially circular. However, the shape of the cross section can be appropriately specified.

[0056] Further, the second rod-like unit 52 also has a plurality of second rod-like portions 53 having the same structure as the plurality of first rod-like portions 51. The plurality of second rod-like portions 53 have substantially the same length as the plurality of first rod-like portions 51, and extend from the second portion 54B of the linking portion 54 located on the opposite side of the first portion 54A toward the second extension direction 53A.

[0057] As one example, the first extension direction 51A and the second extension direction 53A intersect the flow direction 5C of the gas in the second chamber 30 at an angle of substantially 90°, and the first extension direction 51A is in the opposite direction to the second extension direction 53A. Further, the root of each of the first rod-like portions 51 is adjacent to the root of any of the second rod-like portions 53, and each of the first rod-like portions 51 and the second rod-like portion 53 adjacent to the root thereof extend in a substantially straight line with the linking portion 54 interposed therebetween.

[0058] That is, the first rod-like unit 50 and the second rod-like unit 52 have substantially the same shape, and the resin member 5 has a substantially plane-symmetrical shape with the face passing through the linking portion 54 as the center.

[0059] Further, as one example, the plurality of first rod-like portions 51 and the plurality of second rod-like portions 53 are arranged in a manner to form the first to third columns 5D to 5F, and are disposed in the entire region of the second chamber 30. In addition, the number of columns of the plurality of first rod-like portions 51 and the plurality of second rod-like portions 53, and the number of the first and second rod-like portions 51 and 53 arranged in each column can be appropriately specified in accordance with the size of the chamber in which the resin member 5 is to be disposed.

[0060] The adsorbent 61 disposed in the second chamber 30 is formed into granular pellets. Therefore, by disposing the plurality of first rod-like portions 51 and the plurality of second rod-like portions 53 (hereinafter simply referred to as rod-like portions) in the second chamber 30, gaps are formed between each of the rod-like portions and the adsorbent 61. Thereby, the ventilation resistance of the second chamber 30 can be suppressed.

[0061] [4. Linking portion]

[0062] The connecting portion 54 is provided from the first end 5A to the second end 5B of the resin member 5, and extends along the flow direction 5C of the gas in the second chamber 30 (refer to Figures 2-4 ). The connecting portion 54 is located at a position substantially in the middle of the first extension direction 51A and the second extension direction 53A in the resin member 5, and connects the roots of the plurality of first rod-shaped portions 51 and the plurality of second rod-shaped portions 53, respectively. Note that it is additionally explained herein that, in the resin member 5 of the present embodiment, as one example, the plurality of rod-shaped portions 51, 53 are connected to each other by the connecting portion 54, and are not connected by other constituent elements. The connecting portion 54 has a main portion 55, a plurality of first branch portions 56 and a plurality of second branch portions 57, and two flat portions 58 (refer to Figure 3 、 4 ).

[0063] The main portion 55 is a rod-shaped portion extending in a substantially straight line along the flow direction 5C of the gas. The main portion 55 connects the roots of the plurality of first rod-shaped portions 51 in the second row 5E and the roots of the plurality of second rod-shaped portions 53 to each other.

[0064] The plurality of first branch portions 56 are provided so as to respectively protrude from the roots of the rod-shaped portions of the second row 5E toward the first row 5D. Each first branch portion 56 connects the root of each rod-shaped portion of the second row 5E and the root of the rod-shaped portion of the first row 5D located at a position closer to the second end 5B than the rod-shaped portion and closest to the rod-shaped portion.

[0065] The plurality of second branch portions 57 are provided so as to respectively protrude from the roots of the rod-shaped portions of the second row 5E toward the third row 5F. Each second branch portion 57 connects the root of each rod-shaped portion of the second row 5E and the root of the rod-shaped portion of the third row 5F located at a position closer to the second end 5B than the rod-shaped portion and closest to the rod-shaped portion.

[0066] Each flat portion 58 is provided in the first row 5D and the third row 5F. The flat portion 58 of the first row 5D connects the roots of three rod-shaped portions arranged from the first end 5A in the first row 5D to each other. Further, the flat portion 58 of the third row 5F connects the roots of three rod-shaped portions arranged from the first end 5A in the third row 5F to each other.

[0067] Further, each flat portion 58 has a flat shape substantially parallel to the flow direction 5C of the gas and extending in a direction substantially orthogonal to the first extension direction 51A and the second extension direction 53A, and each flat portion 58 protrudes toward and abuts against the inner wall of the second chamber 30. Thus, gaps are formed between the plurality of rod-shaped portions of the first row 5D and the inner wall of the second chamber 30, and between the plurality of rod-shaped portions of the third row 5F and the inner wall of the second chamber 30.

[0068] [5. Concave portion]

[0069] At least a portion of the outer peripheral surface of the plurality of rod portions in the first rod unit 50 and / or the second rod unit 52 can be formed with a concave portion 59 (refer to Figure 5 , 6 ). Specifically, for example, the concave portion 59 can be formed as a groove-like portion extending substantially in parallel with the extending direction of the rod portion from the root of the rod portion or the vicinity thereof to the tip of the rod portion or the vicinity thereof. As one example, four concave portions 59 can be provided substantially at equal intervals, and the cross section of the rod portion can be formed in an X shape (refer to Figure 5 ). Further, for example, five concave portions 59 can be provided substantially at equal intervals, and the cross section of the rod portion can be formed in a star shape (refer to Figure 6 ).

[0070] Of course, not limited thereto, the concave portion 59 can also be formed as a groove-like portion extending in a direction different from the extending direction. Further, the concave portion 59 is not limited to a groove shape, and for example, can also be formed as a plurality of point-like regions on the outer peripheral surface of the rod portion.

[0071] Further, the plurality of rod portions in the first rod unit 50 and / or the second rod unit 52 can include a plurality of rod portions having different cross-sectional shapes, and can also include at least one specific rod portion. In addition, the specific rod portion has a plurality of sections arranged along the extending direction of the specific rod portion and having different cross-sectional shapes.

[0072] [6. Method for manufacturing resin member]

[0073] The resin member 5 is manufactured by injection molding using the first mold 7A and the second mold 7B (refer to Figure 7 ). The first mold 7A is configured to form the first rod unit 50 (in other words, the plurality of first rod portions 51) and the first portion 54A of the connecting portion 54. Also, the second mold 7B is configured to form the second rod unit 52 (in other words, the plurality of second rod portions 53) and the second portion 54B of the connecting portion 54.

[0074] The first mold 7A has a concave portion 70, a plurality of hole portions 71, an abutment surface 72, and a cooling duct 73.

[0075] The concave portion 70 is a portion for forming the first portion 54A of the connecting portion 54, and is provided on the abutment surface 72.

[0076] The plurality of hole portions 71 are cylindrical portions for forming the plurality of first rod portions 51, and are provided at the bottom of the concave portion 70. In addition, in order to form a draft angle in each first rod portion 51, the diameter of each hole portion 71 is made smaller as it approaches the bottom side of the hole portion 71.

[0077] The cooling pipe 73 is a site for flowing a cooling liquid for cooling the resin filled in the recess 70 and the plurality of hole portions 71 at the time of injection molding. The cooling pipe 73 is arranged so as to pass around the plurality of first rod portions 51. However, the cooling pipe 73 does not pass between the plurality of first rod portions 51.

[0078] Further, the second mold 7B has the same structure as the first mold 7A, and the second mold 7B has the recess 70, the plurality of hole portions 71, the abutting surface 72, and the cooling pipe 73.

[0079] At the time of manufacturing the resin member 5, the first mold 7A and the second mold 7B are arranged so that the abutting surfaces 72 abut against each other. At this time, the recess 70 and the plurality of hole portions 71 of the first mold 7A and the recess 70 and the plurality of hole portions 71 of the second mold 7B are substantially face-symmetrical with the abutting surface 72 as the center.

[0080] Next, the recess 70 and the plurality of hole portions 71 of the first mold 7A and the recess 70 and the plurality of hole portions 71 of the second mold 7B are filled with a high-temperature resin. Further, the filled resin is cooled by flowing a cooling liquid in the cooling pipe 73, thereby solidifying the resin.

[0081] When the solidification of the resin ends, the first mold 7A and the second mold 7B are separated, and the resin member 5 is taken out from the inside of the first mold 7A and the second mold 7B.

[0082] In addition, the first mold 7A can be configured by a plurality of molds, and the first rod unit 50 and the first portion 54A of the connecting portion 54 can be formed by the plurality of molds at the time of injection molding. Further, the second mold 7B can also be configured by a plurality of molds.

[0083] [7. Modification]

[0084] In the present embodiment, the angle at which the first extension direction 51A of the first rod portion 51 intersects with the flow direction 5C of the gas (hereinafter referred to as the first intersection angle) is substantially 90°. Further, the angle at which the second extension direction 53A of the second rod portion 53 intersects with the flow direction 5C of the gas (hereinafter referred to as the second intersection angle) is also substantially 90° (see FIG. 6). Figure 2 ).

[0085] However, the first intersection angle and the second intersection angle are not limited to be substantially 90°, and can be set to be in a range of 45° or more and 90° or less. In addition, as shown in FIG. 7, the front end of the first rod portion 51 and the front end of the second rod portion 53 can be located at positions closer to the second end 5B side than the root of the first rod portion 51 and the root of the second rod portion 53, as shown in FIG. 8. Figure 8 Figure 9 ​As shown, the front end of the first rod-shaped portion 51 and the front end of the second rod-shaped portion 53 can also be located at positions closer to the first end 5A side than the root of the first rod-shaped portion 51 and the root of the second rod-shaped portion 53. In either case, the first intersection angle and the second intersection angle are not limited to substantially 90°, but can be defined as being in a range of 45° or more and 90° or less. Further, the first intersection angle and the second intersection angle can be substantially the same value, or can be different values.

[0086] In addition, in the case where the first intersection angle and the second intersection angle are different values from substantially 90°, or in the case where the first intersection angle and the second intersection angle are different from each other, the resin member 5 is manufactured by injection molding, as in the present embodiment.

[0087] [8. Effects]

[0088] (1) According to the above-described embodiment, it is possible to both configure a plurality of rod-shaped portions in the entire region of the second chamber 30 and promote shortening of the plurality of rod-shaped portions. Therefore, it is possible to suppress a case where the roots of the rod-shaped portions become thick due to formation of a demolding taper, and thus it is possible to suppress a case where heat is accumulated around the roots of the rod-shaped portions at the time of injection molding. Thereby, it is possible to suppress a case where the rod-shaped portions are warped, and thus it is easy to manufacture the filter can 1.

[0089] Further, by suppressing warping of the rod-shaped portions, the dimensional accuracy of the resin member 5 is improved. Further, it is assumed that even if the rod-shaped portions are warped, it is possible to suppress dimensional deviation due to warping by shortening the rod-shaped portions. Further, the plurality of rod-shaped portions are shortened, and thus it is possible to reduce the injection stroke at the time of manufacturing the resin member 5 by injection molding, and thus it is possible to perform injection molding in a shorter cycle. Further, by suppressing thickening of the roots of the rod-shaped portions, it is possible to reduce the amount of resin required to manufacture the resin member 5, and thus it is possible to both lighten the filter can 1 and suppress costs.

[0090] (2) Further, the resin member 5 is configured in the second chamber 30 that is in an elongated shape, and thus it is possible to further promote shortening of the plurality of rod-shaped portions. Thereby, it is possible to suppress a case where the roots of the rod-shaped portions become thick due to formation of a demolding taper, and thus it is possible to further suppress a case where the rod-shaped portions are warped at the time of injection molding of the resin member 5.

[0091] (3) Further, by forming the recessed portions 59 in the plurality of rod-shaped portions, a gap is formed between the recessed portions 59 and the granules that are the adsorbent. Therefore, it is possible to suppress ventilation resistance of the filter can 1.

[0092] (4) Furthermore, when injection molding, the first rod-shaped unit 50 and the second rod-shaped unit 52 can be formed by the first mold 7A and the second mold 7B, respectively, which are located on both sides of the connecting portion 54. Furthermore, the plurality of first rod-shaped portions 51 of the first rod-shaped unit 50 and the plurality of second rod-shaped portions 53 of the second rod-shaped unit 52 extend in directions opposite to each other. Thus, it is possible to arrange the plurality of rod-shaped portions in the entire region of the second chamber 30, and it is possible to further promote the shortening of each rod-shaped portion. Thus, it is possible to further suppress the occurrence of warping of the rod-shaped portions when injection molding the resin member 5.

[0093] [9. Other Embodiments]

[0094] (1) The resin member 5 of the above-described embodiment has the first rod-shaped unit 50 and the second rod-shaped unit 52, but the resin member 5 can also have a structure in which only the first rod-shaped unit 50 is provided. That is, the plurality of first rod-shaped portions 51 can be provided only in the first portion 54A of the connecting portion 54. Furthermore, the resin member 5 can be arranged in the chamber in such a manner that the lengths of the plurality of first rod-shaped portions 51 are adjusted so that the connecting portion 54 and the front ends of the first rod-shaped portions 51 are located at positions near the inner wall of the second chamber 30. Furthermore, it is also possible to provide three or more rod-shaped units in the resin member 5 by providing a plurality of rod-shaped units in the first portion 54A and / or the second portion 54B of the resin member 5 of the above-described embodiment.

[0095] (2) The plurality of functions possessed by one constituent element in the above-described embodiment can be realized by a plurality of constituent elements, or one function possessed by one constituent element can be realized by a plurality of constituent elements. Furthermore, the plurality of functions possessed by a plurality of constituent elements can be realized by one constituent element, or one function realized by a plurality of constituent elements can be realized by one constituent element. Furthermore, a part of the configuration of the above-described embodiment can be omitted. Furthermore, at least a part of the configuration of the above-described embodiment can be added to the configuration of the above-described other embodiments, or at least a part of the configuration of the above-described embodiment can be replaced with the configuration of the above-described other embodiments.

Claims

1. A filter canister configured to be mounted on a vehicle having an engine, characterized by, Possessing: at least one chamber in which an adsorbent that adsorbs fuel vapor is disposed; a flow inlet configured to cause fuel vapor to flow from a fuel tank of the vehicle into the at least one chamber; an atmosphere inlet configured to cause atmosphere to flow from outside of the vehicle into the at least one chamber; a flow outlet configured to cause fuel vapor that has been adsorbed by the adsorbent to flow toward the engine by the atmosphere that has flowed in from the atmosphere inlet; and a resin member disposed in an object chamber that is any of the at least one chamber, and the adsorbent disposed in the object chamber is formed as a plurality of granular members, the resin member is a resin member formed integrally, and has a linking portion and at least one rod-shaped unit, the rod-shaped unit has a plurality of rod-shaped portions that extend from the linking portion along an extension direction that is substantially parallel to a direction that intersects a flow direction of a gas in the object chamber at an angle of 45° or more and 90° or less, the plurality of rod-shaped portions each are formed as a taper that tapers as it approaches a front end, and the plurality of rod-shaped portions are disposed so as to extend substantially parallel to one another and form a plurality of rows.

2. The canister according to claim 1, wherein the object chamber has an elongated shape that extends along the flow direction of the gas in the object chamber.

3. The canister according to claim 1 or 2, wherein an outer peripheral surface of at least some of the plurality of rod-shaped portions is formed with at least one recess.

4. The canister according to claim 1 or 2, wherein the resin member has a first rod-shaped unit and a second rod-shaped unit as the at least one rod-shaped unit, the linking portion has a first portion and a second portion located on an opposite side of the first portion, the plurality of rod-shaped portions of the first rod-shaped unit extend substantially parallel to a direction prescribed in correspondence with the first rod-shaped unit from the first portion, the plurality of rod-shaped portions of the second rod-shaped unit extend substantially parallel to a direction prescribed in correspondence with the second rod-shaped unit from the second portion.

5. The canister according to claim 4, wherein the first rod-shaped unit and the second rod-shaped unit have substantially the same shape.

6. The canister according to claim 5, wherein the resin member has a shape that is substantially face-symmetrical about a face that passes through the linking portion.

7. The canister according to claim 1 or 2, wherein the extension direction of the plurality of rod-shaped portions is a direction that intersects the flow direction of the gas in the object chamber at an angle of substantially 90°.

8. The canister according to claim 1 or 2, wherein both ends of the resin member in the flow direction of the gas are located near an inner wall of the object chamber.

9. The canister according to claim 1 or 2, wherein the linking portion extends along the flow direction of the gas. ​

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