Air conditioning register

Abstract

To provide an air-conditioning register which can reduce a thickness of a place where a knob is mounted in a fin.SOLUTION: An air-conditioning register includes: a long plate-shaped downstream fin 12 which is arranged in an air passage 15 for passing air-conditioning air, and has a long side and a short side; and a knob 14 which is mounted so as to be relatively movable in a long side direction relative to the downstream fin 12. The downstream fin 12 is arranged so that a direction crossing a flow direction of the air-conditioning air of the air passage 15 becomes the long side direction, and can be rotated around a central line of a first support shaft 16 extending in the long side direction. The knob 14 includes a body 17 and an assembly 18, and is mounted on the downstream fin 12 by assembling the body 17 and the assembly 18 to each other. The knob 14 has the body 17 penetrating through the downstream fin 12 in a short side direction, and is mounted on the downstream fin 12 by assembling the assembly 18 to an end of the body 17 in the short side direction.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to an air-conditioning register.

Background Art

[0002] An air-conditioning device mounted on a vehicle such as an automobile flows air-conditioning air into the vehicle interior through an air-conditioning register. The air-conditioning register is for adjusting the blowing direction of the air-conditioning air. An air passage through which the air-conditioning air flows is formed in the air-conditioning register. The air-conditioning register includes downstream fins and upstream fins disposed in the passageway.

[0003] The downstream fins are formed in a long plate shape having a long side and a short side. The downstream fins are arranged such that the direction intersecting the flow direction of the air-conditioning air in the air passage is the long side direction. The downstream fins are capable of rotating around the center line of a first support shaft extending in the long side direction. The upstream fins are formed in a plate shape and are disposed upstream of the downstream fins in the air passage. The upstream fins are capable of rotating around the center line of a second support shaft extending in a direction different from the first support shaft.

[0004] A knob is attached to the downstream fins. The knob is capable of moving relative to the downstream fins in the long side direction thereof. The knob is used to operate the downstream fins and the upstream fins. Specifically, the knob is connected to the upstream fins. When the knob is moved in the long side direction with respect to the downstream fins, the upstream fins connected to the knob rotate around the center line of the second support shaft. Further, when the knob is rotated around the center line of the first support shaft, the downstream fins rotate around the center line of the first support shaft. Note that the knob and the upstream fins are connected so as to allow the above-described rotation of the knob and the downstream fins. By changing the rotational positions of the upstream fins and the downstream fins as described above, the blowing direction of the air-conditioning air from the air passage of the air-conditioning register into the vehicle interior is adjusted.

[0005] The knob shown in Patent Document 1 comprises a main body and an assembly, which are attached to the downstream fin by assembling them together. Specifically, the main body has two clamping parts spaced apart in the thickness direction of the downstream fin. The clamping parts protrude from downstream to upstream in the direction of airflow for air conditioning in the ventilation passage. Claws are formed at the tips of the protruding clamping parts. The main body is pushed against the downstream fin from downstream to upstream in the ventilation passage so as to clamp the downstream fin with the two clamping parts. The main body and the assembly are then assembled by hooking the claws of the two clamping parts onto the assembly on the upstream side of the downstream fin.

[0006] In this manner, the main body and the assembly are assembled, and the knob is attached to the downstream fin. At this time, the downstream fin passes between the two clamping parts in the direction of its long side, and the protruding ends of the two clamping parts are connected by the assembly. The knob attached to the downstream fin is able to move relative to the downstream fin in the direction of its long side. [Prior art documents] [Patent Documents]

[0007] [Patent Document 1] Japanese Patent Publication No. 2020-117135 [Overview of the Initiative] [Problems that the invention aims to solve]

[0008] If the knob described in Patent Document 1 is used in the above-mentioned air conditioning register, the two clamping parts of the knob's body clamp the downstream fin in the thickness direction, resulting in a larger thickness on the downstream fin where the knob is attached, including the knob. This is because, as the strength of the two clamping parts decreases, the claws become more likely to detach from the assembly. Therefore, the thickness of these clamping parts must be increased to a certain extent to provide the necessary strength, and there is a limit to how much the thickness of these clamping parts can be reduced. [Means for solving the problem]

[0009] The following describes various embodiments of air conditioning registers that solve the above problems. (Aspect 1) An air conditioning register comprising: a long plate-shaped fin having a long side and a short side arranged in a ventilator through which air conditioning air flows; a knob attached to the fin so as to be movable relative to the fin in the direction of the long side, wherein the fin is arranged such that the direction intersecting the air conditioning air flow direction in the ventilator is the direction of the long side, and is rotatable about the center line of a support shaft extending in the direction of the long side, and the knob comprises a body and an assembly, which are attached to the fin by assembling them together, wherein the knob is attached to the fin by the body penetrating the fin in the direction of the short side, and the assembly being attached to the end of the body in the direction of the short side.

[0010] According to the above configuration, the body of the knob attached to the fin penetrates the fin in the short-side direction. This structure allows for a reduction in the thickness of the body while maintaining the necessary strength. Furthermore, the thickness of the portion of the fin where the body penetrates can be set to the minimum value that ensures the necessary strength of the fin without considering the ease with which the body and the assembly can detach. As a result, the thickness of the portion of the fin where the knob is attached can be reduced.

[0011] (Aspect 2) The main body is inserted into an insertion portion formed in the fin in the direction of the short side of the fin, so that a part of the main body penetrates the fin in the direction of the short side, and the assembly is assembled to the part of the main body that penetrates the fin in the direction of the short side, so that the fin is sandwiched between the main body and the knob in order to attach the knob to the fin (Aspect 1) of the air conditioning register.

[0012] According to the above configuration, when the assembly is attached to the main body to attach the knob to the fin, the fin is sandwiched between the assembly and the main body, which prevents the main body from coming out of the fin insertion part.

[0013] (Aspect 3) The assembly moves between an open position and an assembled position by moving in a direction intersecting the short-side direction of the fins, and when the assembly is in the open position, the main body can be moved relative to the assembly in the short-side direction of the fins, and when the assembly is in the assembled position, the assembly is assembled to the main body by making it impossible for the main body to move relative to the assembly and the fins in the short-side direction of the fins (Aspect 2).

[0014] According to the above configuration, with the main body penetrating the fin in the direction of its short side, the assembly is attached to the main body by moving the assembly from an open position to an assembly position in a direction intersecting the direction of its short side. Because the knob is attached to the fin in this way, when the knob body is pulled out from the fin insertion part, it becomes more difficult for the body to detach from the assembly compared to conventional designs.

[0015] (Aspect 4) The assembly is provided with a claw that restricts movement from the assembly position back to the open position when it moves from the open position to the assembly position (Aspect 3), an air conditioning register.

[0016] According to the above configuration, after moving the assembly from the open position to the assembly position in order to attach it to the main body, it is possible to prevent the assembly from moving from the assembly position to the open position and detaching from the main body. (Aspect 5) The main body includes a gripping portion, a penetrating portion, and a hook portion. The penetrating portion penetrates the fin in the short side direction, and the hook portion is located at one end of along the short side direction in the penetrating portion and protrudes from the fin, and is assembled with the assembly integrally. The gripping portion is positioned at the other end of along the short side direction in the penetrating portion and protrudes from the fin, and is made to have a thickness closer to the thickness of the fin as it approaches the fin(low mode 1)-(low mode 4) The air conditioner register according to any one of.

[0017] According to the above configuration, the gripping portion protruding from the fin in the main body of the knob has a thickness closer to the thickness of the fin as it approaches the fin. Therefore, the step between the gripping portion and the fin can be suppressed to be small, and thereby the appearance can be improved.

Brief Description of Drawings

[0018] [Figure 1] It is an exploded perspective view showing an air conditioner register. [Figure 2] It is a cross-sectional view showing the air conditioner register of FIG. 1. [Figure 3] It is a cross-sectional view showing the state where the air conditioner register of FIG. 2 is viewed from the direction of arrow III-III. [Figure 4] It is a perspective view showing the knob and the downstream fin in the air conditioner register of FIG. 1. [Figure 5] It is a perspective view showing the state where the knob and the downstream fin of FIG. 4 are viewed from another direction. [Figure 6] It is a perspective view showing the state where the assembly in the knob of FIG. 4 is assembled to the main body.

Embodiments for Carrying Out the Invention

[0019] Hereinafter, an embodiment of the air conditioner register will be described with reference to FIGS. 1 to 6. The air-conditioning register shown in FIGS. 1 and 2 is for adjusting the blowing direction of the air-conditioning air blown from the air-conditioning device mounted on the vehicle into the vehicle interior. The air-conditioning register includes a retainer 11, a downstream fin 12, an upstream fin 13, and a knob 14.

[0020] A ventilation passage 15 for flowing the air-conditioning air is formed in the retainer 11. The downstream fin 12 and the upstream fin 13 are for changing the blowing direction of the air-conditioning air blown from the ventilation passage 15 of the air-conditioning register into the vehicle interior, and are arranged in the ventilation passage 15. The upstream fin 13 is located upstream of the downstream fin 12 in the flow direction of the air-conditioning air in the ventilation passage 15. The knob 14 is attached to the downstream fin 12.

[0021] <Structure of the downstream fin 12 and its periphery> The downstream fin 12 is formed in a long plate shape having a long side and a short side. The downstream fin 12 is arranged such that the direction intersecting the flow direction of the air-conditioning air in the ventilation passage 15 is the long side direction. First support shafts 16 are respectively formed at both ends of the downstream fin 12 in the long side direction. By protruding from the ends of the downstream fin 12 in the long side direction, these first support shafts 16 extend in the long side direction of the downstream fin 12 on the same axis. The first support shaft 16 is supported by the retainer 11 so as to be rotatable around the center line of the first support shaft 16. Thereby, the downstream fin 12 can rotate around the center line of the first support shaft 16. The blowing direction of the air-conditioning air blown from the ventilation passage 15 of the retainer 11 into the vehicle interior changes according to the rotational position of the downstream fin 12 around the center line of the first support shaft 16.

[0022] As shown in Figure 2, the knob 14 attached to the downstream fin 12 comprises a body 17 and an assembly 18. The body 17 of the knob 14 penetrates the downstream fin 12 in the short-side direction. The assembly 18 is attached to the short-side end of the body 17. In this way, the knob 14 is attached to the downstream fin 12. The knob 14 attached to the downstream fin 12 in this manner can rotate integrally with the downstream fin 12 and can move relative to the downstream fin 12 in the long-side direction.

[0023] <Structure of upstream fin 13 and its surrounding area> As shown in Figure 1, multiple upstream fins 13 are provided at intervals along the long side of the downstream fins 12. The upstream fins 13 are formed in a plate shape. Second support shafts 19 are formed at the upper and lower ends of the upstream fins 13 in Figure 1. These second support shafts 19 protrude from the upper and lower ends of the upstream fins 13, extending in a different direction from the first support shaft 16 of the downstream fins 12 on the same axis. The second support shafts 19 are supported by the retainer 11 so as to be rotatable around the centerline of the second support shafts 19. This allows the upstream fins 13 to rotate around the centerline of the second support shafts 19. The direction of air conditioning air blown into the passenger compartment from the ventilation passage 15 of the retainer 11 also changes according to the rotational position of the upstream fins 13 around the centerline of the second support shafts 19.

[0024] As shown in Figure 2, a connecting bar 20 is positioned between the assembly 18 of the upstream fin 13 and the knob 14. The connecting bar 20 extends in the direction of the long side of the downstream fin 12. The connecting bar 20 is used to convert the linear motion of the downstream fin 12 in the direction of the long side at the knob 14 into rotational motion around the centerline of the second support shaft 19 (Figure 1) at the multiple upstream fins 13.

[0025] The assembly 18 of the knob 14 has a protruding piece 21 formed thereon for connecting the knob 14 to the connecting bar 20. The protruding piece 21 protrudes toward the connecting bar 20 and extends in a direction perpendicular to the downstream fin 12. A groove 22 is formed on the connecting bar 20 at a position opposite to the protruding piece 21. The protruding piece 21 is inserted into the groove 22. Therefore, when the knob 14 is moved in the direction of the long side of the downstream fin 12, the connecting bar 20 moves together with the knob 14. Furthermore, when the downstream fin 12 and the knob 14 are rotated around the centerline of the first support shaft 16, the relative movement of the protruding piece 21 with respect to the connecting bar 20 is permitted by the groove 22.

[0026] Support columns 23 are formed at positions corresponding to the connecting bar 20 on each of the multiple upstream fins 13. Grooves 24 are formed at positions corresponding to each of the multiple upstream fins 13 on the connecting bar 20. The support columns 23 of the upstream fins 13 are rotatably supported with respect to the connecting bar 20 by being inserted into the grooves 24 of the connecting bar 20. Therefore, when the knob 14 and the connecting bar 20 are moved in the direction of the long side of the downstream fin 12, the connecting bar 20 pushes the support columns 23 of the multiple upstream fins 13, causing the multiple upstream fins 13 to rotate around the centerline of the second support shaft 19.

[0027] <Detailed structure of knob 14> As shown in Figure 3, the downstream fin 12 has an insertion portion 25 into which the body 17 of the knob 14 can be inserted. The insertion portion 25 is formed to penetrate the downstream fin 12 in the short-side direction, i.e., in the left-right direction in Figure 3. The left side of Figure 3 is the upstream side of the airflow for air conditioning in the ventilation passage 15 (Figure 2). At the upstream end of the insertion portion 25 in relation to the airflow for air conditioning, a wall 26 is formed that protrudes opposite in the vertical direction of Figure 3. At the upstream end of the insertion portion 25 in relation to the airflow for air conditioning, the vertical width of the insertion portion 25 in Figure 3 is reduced by the wall 26.

[0028] The main body 17 is inserted into the insertion portion 25 of the downstream fin 12 in the direction of the shorter side of the downstream fin 12. More specifically, the main body 17 is inserted into the insertion portion 25 from the downstream side of the air conditioning airflow. As a result, the main body 17 penetrates the insertion portion 25. The main body 17 is equipped with a gripping portion 27 and a through portion 28. The through portion 28 penetrates the insertion portion 25 in the direction of the shorter side of the downstream fin 12. The gripping portion 27 is for holding with the hand when operating the knob 14. The gripping portion 27 is located at the end of the through portion 28 in the direction of the shorter side, more specifically at the end of the through portion 28 on the downstream side of the air conditioning airflow. The gripping portion 27 protrudes from the downstream fin 12, and its thickness is made to be closer to the thickness of the downstream fin 12 as it approaches the downstream fin 12.

[0029] As shown in Figures 4 to 6, the main body 17 is equipped with a hook portion 29. As shown in Figures 4 and 5, the hook portion 29 is located at the end of the through portion 28 in the short-side direction, more specifically at the end of the through portion 28 on the upstream side of the airflow for air conditioning. The hook portion 29 passes between the walls 26 of the downstream fin 12 and protrudes from the downstream fin 12, and is assembled with the knob 14 assembly 18 as shown in Figure 6.

[0030] The assembly 18 is attached to the hook portion 29, in other words, to a part of the main body 17 that penetrates the downstream fin 12 in the short-side direction, thereby sandwiching the wall 26 of the downstream fin 12 between itself and the penetrating portion 28 of the main body 17. This allows the knob 14 to be attached to the downstream fin 12. The length of the insertion portion 25 (Figure 4) in the downstream fin 12 in the long-side direction is made greater than the length of the penetrating portion 28 (Figure 5) in the knob 14 in the long-side direction. This allows the knob 14 attached to the downstream fin 12 to move relative to the downstream fin 12 in the long-side direction.

[0031] As shown in Figures 4 and 5, the assembly 18 includes a base piece 31 that can be attached to the main body 17. The base piece 31 is formed in the shape of a rectangular plate with the longer side being the direction of the longer side of the downstream fin 12 and the shorter side being the direction of the thickness of the downstream fin 12. The protruding piece 21 of the assembly 18 is formed to protrude from the base piece 31. The base piece 31 also has a through hole 32, a retaining portion 33, and a claw 34 formed therein.

[0032] The through-hole 32 is shaped to allow the hook portion 29 of the body 17 of the knob 14 to pass through. The tip of the hook portion 29 is bent so as to extend in the direction of the long side of the downstream fin 12. The through-hole 32 is shaped so that, with the hook portion 29 passed through, the assembly 18 can be moved relative to the hook portion 29 downward in Figures 4 and 5. The retaining portion 33 is located next to the through-hole 32 in the base piece 31.

[0033] With the hook portion 29 passed through the through hole 32, when the assembly 18 is moved downward as shown in Figures 4 and 5, the tip of the hook portion 29 is positioned corresponding to the retaining portion 33, as shown in Figure 6. At this time, the retaining portion 33 and the tip of the hook portion 29 prevent relative movement of the assembly 18 and the main body 17 relative to the downstream fin 12 in the short-side direction of the downstream fin 12. As a result, the assembly 18 is attached to the main body 17.

[0034] As described above, when the tip of the hook portion 29 is positioned corresponding to the retaining portion 33, the position of the assembly 18 is an assembly position that prevents relative movement of the assembly 18 and the main body 17 relative to the downstream fin 12 in the short-side direction of the downstream fin 12. On the other hand, the position of the assembly 18 when the hook portion 29 is passed through the through hole 32, that is, the position when the assembly 18 is moved upward from the position in Figure 6 until it hits the end, is an open position that allows the main body 17 to move relative to the assembly 18 in the short-side direction of the downstream fin 12. The assembly 18 is capable of moving between the open position and the assembled position described above. Movement of the assembly 18 between the open position and the assembled position is achieved by moving the assembly 18 in a direction that intersects with the short-side direction of the downstream fin 12.

[0035] As shown in Figures 4 and 5, the claw 34 is located next to the through hole 32 and the retaining portion 33 in the base piece 31 of the assembly 18. The claw 34 is for restricting the movement of the assembly 18 from the assembled position back to the open position when the assembly 18 moves from the open position back to the assembled position. As shown in Figure 6, when the assembly 18 is in the assembled position, the claw 34 is hooked onto the main body 17 as shown in Figure 3. More specifically, the claw 34 is hooked onto a projection 35 that protrudes from the through portion 28 of the main body 17 through the two walls 26 of the downstream fin 12. When the assembly 18 moves from the open position back to the assembled position, the claw 34 elastically deforms and overcomes the projection 35, thereby hooking onto the projection 35. By hooking the claw 34 onto the projection 35 in this way, the movement of the assembly 18 from the assembled position back to the open position is restricted.

[0036] Next, the effects and benefits of the above-mentioned air conditioning register will be explained. (1) The knob 14 is attached to the downstream fin 12 by having its body 17 penetrate the downstream fin 12 in the short-side direction, and by assembling the assembly 18 to the end of the body 17 in the short-side direction. With this structure, the thickness of the body 17 can be reduced while maintaining the necessary strength of the body 17. Furthermore, with the above structure, the thickness of the part of the downstream fin 12 where the body 17 penetrates can be set to the minimum value that ensures the necessary strength of the downstream fin 12 without considering the ease with which the body 17 and the assembly 18 can come apart. As a result, the thickness of the part of the downstream fin 12 to which the knob 14 is attached can be reduced. And by reducing the thickness of the part of the downstream fin 12 to which the knob 14 is attached, the sense of unity between the downstream fin 12 and the knob 14 is increased.

[0037] (2) The main body 17 is inserted into the insertion portion 25 formed in the downstream fin 12 in the direction of the shorter side of the downstream fin 12, so that a part of the main body 17 penetrates the downstream fin 12 in the direction of the shorter side. The assembly 18 is assembled to the hook portion 29, which is a part of the main body 17 that penetrates the downstream fin 12 in the direction of the shorter side. When the assembly 18 is assembled to the hook portion 29, the knob 14 is attached to the downstream fin 12 by sandwiching the downstream fin 12 between the assembly 18 and the main body 17. Therefore, when the assembly 18 is assembled to the main body 17 in order to attach the knob 14 to the downstream fin 12, the downstream fin 12 is sandwiched between the assembly 18 and the main body 17, so that the main body 17 does not come out of the insertion portion 25 of the downstream fin 12.

[0038] (3) The assembly 18 moves between the open position and the assembled position by moving in a direction intersecting the short side direction of the downstream fin 12. When the assembly 18 is in the open position, the main body 17 can be moved relative to the assembly 18 in the short side direction of the downstream fin 12. When the assembly 18 is in the assembled position, the assembly 18 is assembled to the main body 17 by making it impossible for the main body 17 to move relative to the assembly 18 and the downstream fin 12 in the short side direction of the downstream fin 12. Therefore, with the main body 17 penetrating the short side direction of the downstream fin 12, the assembly 18 is assembled to the main body 17 by moving the assembly 18 from the open position to the assembled position in a direction intersecting the short side direction. Since the knob 14 is attached to the downstream fin 12 in this way, even if the main body 17 of the knob 14 is pulled out from the insertion part 25 of the downstream fin 12, the main body 17 will not come off the assembly 18.

[0039] (4) The assembly 18 is equipped with a claw 34 that restricts its movement from the assembly position back to the open position when it has moved from the open position back to the assembled position. When the assembly 18 moves from the open position back to the assembled position, the claw 34 is hooked onto a projection 35 on the main body 17. This restricts the movement of the assembly 18 from the assembled position back to the open position. Therefore, after the assembly 18 has been moved from the open position back to the assembled position in order to assemble it to the main body 17, it is possible to prevent the assembly 18 from moving from the assembled position back to the open position and detaching from the main body 17.

[0040] (5) The body 17 of the knob 14 includes a gripping portion 27, a through portion 28, and a hook portion 29. The through portion 28 penetrates the downstream fin 12 in the short-side direction. The hook portion 29 is located at one end of the through portion 28 in the short-side direction and protrudes from the downstream fin 12, and is assembled with the assembly body 18. The gripping portion 27 is located at the other end of the through portion 28 in the short-side direction and protrudes from the downstream fin 12, and its thickness is made to be close to the thickness of the downstream fin 12 as it approaches the downstream fin 12. As a result, the step difference between the gripping portion 27 and the downstream fin 12 can be kept small, thereby improving the appearance.

[0041] The above embodiment can also be modified as follows, for example. The above embodiment and the following modifications can be combined and implemented to the extent that they do not contradict each other technically. Regarding the gripping portion 27, it is not necessarily required that its thickness become closer to the thickness of the downstream fin 12 as it approaches the downstream fin 12.

[0042] The method of assembling the assembly 18 to the main body 17 may be changed as appropriate. Depending on the method of assembly, it may be possible to omit the claws 34 of the assembly 18. The direction of movement of the assembly 18 between the open position and the assembled position does not necessarily have to be in a direction that intersects with the short side direction of the downstream fin 12. [Explanation of Symbols]

[0043] 11…Retainer 12… Downstream fin 14… Nobu 15...Ventilation duct 16...1st support shaft 17...Main unit 18…Assembly body 21...Protruding piece 22…Groove 23…post 24...Groove 25... Insertion part 26... Wall 27...Gripping part 28... Penetration 29... Hook part 31...Bass piece 32... Through hole 33... Retaining part 34… Nails 35…Protrusion

Claims

1. It comprises a long plate-shaped fin having a long side and a short side, arranged in a ventilation passage for conditioned air, and a knob attached to the fin so as to be able to move relative to it in the direction of the long side, The fins are arranged such that the direction intersecting the airflow direction of the air conditioning system in the ventilation passage is the direction of the longer side, and are capable of rotating around the centerline of a support shaft extending in that direction of the longer side. The knob comprises a main body and an assembly, and is attached to the fin by assembling them together in an air conditioning register. The knob is attached to the fin by having its body penetrate the fin in the short-side direction, and the assembly being attached to the end of the body in the short-side direction. The main body is inserted into the insertion portion formed in the fin in the direction of the short side of the fin, so that a part of the main body penetrates the fin in the direction of the short side. The assembly is attached to a part of the main body through which the fin penetrates in the short-side direction, so as to sandwich the fin between itself and the main body in order to attach the knob to the fin. The assembly moves between the open position and the assembled position by moving in a direction intersecting the short-side direction of the fin. When the assembly is in the open position, the main body can be moved relative to the assembly in the direction of the short side of the fin. An air conditioning register is configured such that when the assembly is in the assembly position, the assembly is assembled to the main body by preventing relative movement of the main body with respect to the assembly and the fins in the direction of the short side of the fins.

2. The air conditioning register according to claim 1, wherein the assembly is provided with a claw that restricts movement from the assembly position back to the open position when the assembly is moved from the open position back to the open position.

3. The main body comprises a gripping portion, a penetrating portion, and a hook portion. The aforementioned through portion penetrates the fin in the direction of the shorter side, The hook portion is located at one end in the short-side direction of the through portion, protruding from the fin, and is assembled with the assembly. The air conditioning register according to claim 1, wherein the gripping portion is located at the other end in the short-side direction of the through portion and protrudes from the fin, and its thickness becomes closer to the thickness of the fin as it approaches the fin.

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