Pop-up hood device, actuator, and base member

Abstract

To provide a pop-up hood device which facilitates mounting, and can reduce cost.SOLUTION: A pop-up hood device mounted on a moving body includes an actuator for lifting a hood panel of the moving body, and a base member which is provided on the moving body and is mounted with the actuator, wherein the base member has a storage part for storing an end opposite to a side that comes in contact with the hood panel of the actuator.SELECTED DRAWING: Figure 1

Description

[Technical Field]

[0001] The present disclosure relates to a pop-up hood device, an actuator, and a base member. [Background technology]

[0002] A pop-up hood device is known that, when a collision between a vehicle and a pedestrian is detected or predicted, lifts the vehicle's hood panel to reduce the impact on the pedestrian. For example, as disclosed in Patent Document 1, the actuator that lifts the hood panel is fixed to the side of the radiator support. The actuator can be fixed using bolts and nuts. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2020-111200 Summary of the Invention [Problem to be solved by the invention]

[0004] However, fixing with bolts and nuts requires time and effort, and the increased number of parts increases costs. [Means for solving the problem]

[0005] The present disclosure can be realized in the following forms.

[0006] (1) According to one aspect of the present disclosure, there is provided a pop-up hood device mounted on a movable body, the pop-up hood device including an actuator that lifts a hood panel of the movable body, and a base member that is provided on the movable body and to which the actuator is attached, the base member having a housing portion that houses an end of the actuator on the side opposite to the side that contacts the hood panel. In this configuration, the base member has a housing portion that houses the end of the actuator opposite the side that contacts the hood panel, making it easier to attach the actuator to the base member than in a configuration where the actuator and base member are fixed with bolts and nuts.Furthermore, because no bolts or nuts are required for attachment, manufacturing costs can be reduced. (2) In the pop-up hood device of the above form, the base member may have a protruding portion that protrudes in a second direction that intersects with a first direction in which the hood panel is lifted by activation of the actuator, and the accommodating portion may be provided in the protruding portion. According to this form of pop-up hood device, the base member has a protruding portion that protrudes in a second direction that intersects with the first direction, which is the direction in which the hood panel is lifted when the actuator is activated, so the entire pop-up hood device can be made more compact in the first direction compared to a configuration in which the protruding portion protrudes in the first direction. (3) In the pop-up hood device of the above form, the device may further include a fixing pin that fixes the actuator to the base member, wherein a first through hole is provided at the end of the actuator and a second through hole is provided at the protruding portion so as to pass through the accommodating portion, and the fixing pin may be positioned so as to pass through the first through hole and the second through hole when the end of the actuator is accommodated in the accommodating portion. This form of pop-up hood device further includes a fixing pin, a first through hole is provided at the end of the actuator, and a second through hole is provided in the protrusion so as to pass through the accommodating portion, and the fixing pin is positioned so as to pass through the first through hole and the second through hole when the end of the actuator is accommodated in the accommodating portion, so that the actuator can be attached to the base member more firmly than in a configuration that does not include a fixing pin. (4) In the pop-up hood device of the above aspect, the base member may be a radiator support. According to the pop-up hood device of this type, the base member is the radiator support, so that the actuator can be attached by utilizing the radiator support.

[0007] The present disclosure may be realized in various forms, for example, in the form of an actuator, a base member, a moving body equipped with a pop-up hood device, or the like. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a schematic diagram showing a vehicle equipped with a pop-up hood device according to an embodiment of the present disclosure. [Figure 2] FIG. 2 is a diagram showing a schematic configuration of a pop-up hood device. [Figure 3] FIG. 10 is an explanatory diagram showing a state in which the actuator and the base member are assembled together. [Figure 4] FIG. 6 is a diagram showing a schematic configuration of a pop-up hood device according to a second embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0009] A. First embodiment: A1. Overall configuration of the pop-up hood device 100: FIG. 1 is a schematic diagram showing a vehicle 400 equipped with a pop-up hood device 100 according to an embodiment of the present disclosure. The vehicle 400 may be, for example, a vehicle equipped with an engine, a hybrid vehicle (HEV), a plug-in hybrid vehicle (PHEV), an electric vehicle (BEV), or a fuel cell vehicle (FCV). When a sensor mounted on the vehicle 400 detects or predicts a collision with a pedestrian, the pop-up hood device 100 lifts a hood panel 410 to reduce impact on the pedestrian. FIG. 1 shows a state in which the pop-up hood device 100 has been activated and the hood panel 410 has been lifted. Note that FIG. 2 and subsequent figures show a state in which the pop-up hood device 100 is not activated. The pop-up hood device 100 is disposed in the front of an engine compartment 420 of the vehicle 400.

[0010] In this disclosure, the direction along the traveling direction of vehicle 400 is referred to as the "front-rear direction." Furthermore, the vertical direction as seen from the driver of vehicle 400 is referred to as the "up-down direction." Furthermore, the direction along the left-right direction (width direction) of vehicle 400 is referred to as the "left-right direction." The "front-rear direction," "up-down direction," and "left-right direction" are directions that intersect with each other. Furthermore, in this disclosure, the "up-down direction" is also referred to as the "first direction," the "front-rear direction" as the "second direction," and the "left-right direction" as the "third direction."

[0011] The pop-up hood device 100 includes an actuator 200 and a base member 300.

[0012] A2. Actuator 200 Configuration: FIG. 2 is a diagram showing a schematic configuration of the pop-up hood device 100. FIG. 2 shows a state in which the actuator 200 is not attached to the base member 300. Two actuators 200 are arranged in the left-right direction. The following description will use the actuator 200 located on the right side of the two actuators 200 as an example. The actuator 200 located on the left side has a configuration symmetrical to the actuator 200 located on the right side, and therefore description thereof will be omitted.

[0013] Actuator 200 receives an electrical signal that is generated when a collision between vehicle 400 and a pedestrian is detected or predicted, and protrudes upward. This causes hood panel 410 shown in Fig. 1 to be lifted upward. As shown in Fig. 2, actuator 200 includes a cylinder portion 215 and a pipe portion 220.

[0014] (Configuration of cylinder portion 215) The cylinder portion 215 has a cylindrical external shape. The cylinder portion 215 is manufactured by, for example, injection molding a metal or a resin. The interior of the cylinder portion 215 is hollow. The cylinder portion 215 moves upward when pushed by gas generated by a gas generator (described later). When the actuator 200 is activated, the upper end of the cylinder portion 215 comes into contact with the hood panel 410.

[0015] (Configuration of pipe section 220) The pipe portion 220 has a cylindrical external shape. The cylinder portion 215 is produced, for example, by injection molding metal or resin. The outer diameter of the pipe portion 220 is smaller than the outer diameter of the cylinder portion 215. The upper side of the pipe portion 220 is housed in the cylinder portion 215. A gas generator (not shown) is provided at the upper end of the pipe portion 220. The gas generator receives an electrical signal and injects gas. An elliptical first through-hole 221 is provided at the lower side of the pipe portion 220 along the left-right direction.

[0016] A3. Configuration of base member 300: The actuator 200 is attached to the base member 300. The base member 300 is manufactured by injection molding of metal or resin. In this embodiment, the base member 300 is a radiator support that constitutes part of the frame of the vehicle 400. FIG. 2 shows only the portion of the radiator support to which the actuator 200 is attached, and other portions are omitted. The base member 300 includes a main body portion 305 and a protrusion portion 310.

[0017] (Configuration of main body 305) The main body 305 is a frame-shaped member made up of a pair of horizontal frames 306 and a pair of vertical frames 307. The horizontal frames 306 extend in the left-right direction. The vertical frames 307 extend in the up-down direction. For convenience of illustration, FIG. 2 shows a portion of one horizontal frame 306 and a portion of one vertical frame 307.

[0018] (Configuration of protrusion 310) The protrusion 310 accommodates the actuator 200. The protrusion 310 also absorbs the downward load generated when the actuator 200 is activated. The protrusion 310 is a rib that protrudes rearward from the vertical frame 307. When viewed left and right, the protrusion 310 has a trapezoidal external shape. The length of the protrusion 310 in the up-down direction is shorter on the side farther from the main body 305 than on the side closer to the main body 305. The lower surface 311 of the protrusion 310 slopes from bottom to top along the side closer to the main body 305 to the side farther from the main body 305. The upper surface 312 of the protrusion 310 is a flat surface that extends in the left-right and front-rear directions. The protrusion 310 is provided with an accommodation portion 314 and a second through-hole 315.

[0019] (Configuration of the storage section 314) The accommodation portion 314 accommodates a portion of the actuator 200, including the end portion opposite to the side that contacts the hood panel 410. In this embodiment, the accommodation portion 314 accommodates the pipe portion 220. The accommodation portion 314 is a bottomed hole that extends in the vertical direction. The inner diameter of the accommodation portion 314 and the outer diameter of the pipe portion 220 are approximately the same. Therefore, when the pipe portion 220 is inserted into the accommodation portion 314, the outer peripheral surface of the pipe portion 220 comes into contact with the inner peripheral surface of the accommodation portion 314.

[0020] (Configuration of second through-hole 315) The second through-hole 315 is an elliptical through-hole extending in the left-right direction. The shape of the second through-hole 315 is the same as the shape of the first through-hole 221 of the actuator 200.

[0021] A4. Assembling the actuator 200 and the base member 300: As shown by the arrow in FIG. 2, the pipe portion 220 of the actuator 200 is inserted into the housing portion 314 of the protruding portion 310. At this time, the positions of the first through hole 221 provided in the pipe portion 220 and the second through hole 315 provided in the protruding portion 310 are adjusted so as to overlap. FIG. 3 is an explanatory diagram showing a state in which the actuator 200 and the base member 300 are assembled. As shown in FIG. 3, when the pipe portion 220 is housed in the housing portion 314, the fixing pin 500 is positioned so as to pass through the overlapping first through hole 221 and second through hole 315. The fixing pin 500 has a rod-like external shape with an elliptical cross section. The outer diameter of the fixing pin 500 is approximately the same as the inner diameters of the first through hole 221 and the second through hole 315. The fixing pin 500 fixes the actuator 200 to the base member 300.

[0022] According to the pop-up hood device 100 of the first embodiment described above, the base member 300 has the accommodation portion 314 that accommodates the end portion of the actuator 200 opposite to the side that contacts the hood panel 410, and therefore, compared to a configuration in which the actuator 200 and the base member 300 are fixed together with bolts and nuts, the actuator 200 can be attached to the base member 300 more easily. Furthermore, because bolts and nuts are not required for attachment, manufacturing costs can be reduced.

[0023] Furthermore, the base member 300 has a protrusion 310 that protrudes in the front-to-rear direction, which is a direction that intersects with the up-and-down direction, which is the direction in which the hood panel 410 is lifted when the actuator 200 is activated, so the entire pop-up hood device 100 can be made more compact in the up-and-down direction compared to a configuration in which the protrusion 310 protrudes in the up-and-down direction.

[0024] In addition, the actuator 200 is further provided with a fixing pin 500 for fixing the actuator 200 to the base member 300, a first through hole 221 is provided at the end of the actuator 200, and a second through hole 315 is provided in the protrusion 310 so as to pass through the accommodating portion 314, and the fixing pin 500 is positioned so as to pass through the first through hole 221 and the second through hole 315 when the end of the actuator 200 is accommodated in the accommodating portion 314, so that the actuator 200 can be attached to the base member 300 more firmly than in a configuration that does not include the fixing pin 500.

[0025] Furthermore, since the base member 300 is a radiator support, the actuator 200 can be attached using the radiator support.

[0026] Furthermore, since the vertical length of the protrusion 310 is shorter on the side farther from the main body 305 than on the side closer to the main body 305, the protrusion 310 can be made lighter while maintaining its strength compared to a configuration in which the vertical length of the protrusion 310 is uniform.

[0027] B. Second embodiment: 4 is a diagram showing the general configuration of a pop-up hood device 100b of the second embodiment. The pop-up hood device 100b of the second embodiment differs from the pop-up hood device 100 of the first embodiment in that the base member 300b does not have a protrusion 310. Points in the configuration of the pop-up hood device 100b of the second embodiment that are not particularly described are the same as those of the first embodiment, and so description thereof will be omitted.

[0028] As shown in FIG. 4, the housing portion 314b is provided on the upper surface of the horizontal frame 306. The pipe portion 220 of the actuator 200 can be inserted into this housing portion 314b as well. The pipe portion 220 used in the second embodiment does not need to be provided with the first through-hole 221. The actuator 200 and the base member 300b in the second embodiment can be fixed together by, for example, screwing. Specifically, the pipe portion 220 can be screwed to the housing portion 314b by machining the outer peripheral surface of the pipe portion 220 to have a male thread and machining the inner peripheral surface of the housing portion 314b to have a female thread.

[0029] According to the second embodiment of the pop-up hood device 100b described above, the storage section 314b is provided on the upper surface of the horizontal frame 306 of the base member 300b, so that the pop-up hood device 100b can be made more compact in the front-to-rear direction compared to a configuration in which the storage section 314b is provided on the protrusion 310.

[0030] C. Other Embodiments: (C1) In the above embodiment, the up-down direction, the front-rear direction, and the left-right direction may be any directions that intersect with each other at angles other than 90 degrees. That is, the direction in which the actuator 200 lifts the hood panel 410 may be any first direction. The direction in which the protrusion 310 protrudes may be any second direction that intersects with the first direction. The direction in which the horizontal frame 306 of the base member 300 extends may be any third direction that intersects with the first and second directions.

[0031] (C2) In the above embodiment, the base member 300 may be any member other than a radiator support. Such a member may be, for example, a part of the body that constitutes the vehicle 400.

[0032] (C3) In the above embodiments, the pop-up hood device 100, 100b may be provided in any location of the vehicle 400. Such a location may be, for example, the rear side of the engine compartment 420.

[0033] (C4) In the above embodiment, the protrusion 310 may have any shape other than a trapezoid when viewed in the left-right direction. Such a shape may be, for example, a rectangular parallelepiped or a triangular shape when viewed in the left-right direction. Furthermore, the protrusion 310 may have a shape in which the vertical length when viewed in the left-right direction changes in a stepped manner.

[0034] (C5) In the above embodiment, the accommodation portions 314, 314b may accommodate only a portion of the pipe portion 220, rather than the entire pipe portion 220. In other words, the accommodation portions 314, 314b may be configured to accommodate a portion of the actuator 200, including the end portion opposite to the side that contacts the hood panel 410.

[0035] (C6) In the first embodiment, the protrusion 310 may have any shape other than a trapezoid when viewed in the left-right direction. Such a shape may be, for example, a rectangular parallelepiped or a triangular shape when viewed in the left-right direction. Furthermore, the length of the protrusion 310 in the up-down direction when viewed in the left-right direction may change in a stepped manner.

[0036] (C7) In the first embodiment, the first through hole 221 and the second through hole 315 may be omitted. In such a configuration, the cylinder portion 215 and the protruding portion 310 may be fixed to each other by any method. Such fixing may be performed, for example, by using an adhesive or by threading the cylinder portion 215 and the protruding portion 310 to form a screw connection.

[0037] (C8) In the above embodiments, the pop-up hood device 100, 100b may be provided on any moving body other than the vehicle 400. Such moving bodies include, for example, ships, airplanes, spacecraft, and so-called flying cars.

[0038] (C9) In the above embodiments, the pop-up hood device 100, 100b may be activated when a collision with an object to be protected other than a pedestrian is detected or predicted. Such an object to be protected may be, for example, a bicycle, a motorbike, or an animal other than a human.

[0039] The present disclosure is not limited to the above-described embodiments and can be realized in various configurations without departing from the spirit thereof. For example, the technical features in the embodiments corresponding to the technical features in each aspect described in the Summary of the Invention section can be appropriately replaced or combined to solve some or all of the above-described problems or achieve some or all of the above-described effects. Furthermore, if a technical feature is not described as essential in this specification, it can be appropriately deleted. [Explanation of symbols]

[0040] 100, 100b... Pop-up hood device, 200... Actuator, 215... Cylinder portion, 220... Pipe portion, 221... First through-hole, 300, 300b... Base member, 305... Main body portion, 306... Horizontal frame, 307... Vertical frame, 310... Protruding portion, 311... Lower surface, 312... Upper surface, 314, 314b... Storage portion, 315... Second through-hole, 400... Vehicle, 410... Hood panel, 420... Engine room, 500... Fixing pin

Claims

1. A pop-up hood device mounted on a moving body, an actuator for lifting a hood panel of the moving body; a base member provided on the movable body and to which the actuator is attached; the base member has a housing portion that houses an end portion of the actuator on the opposite side to the side that contacts the hood panel. Pop-up hood device.

2. The pop-up hood device according to claim 1, the base member has a protruding portion that protrudes in a second direction that is a direction intersecting a first direction that is a direction in which the hood panel is lifted by activation of the actuator, The housing portion is provided on the protrusion portion. Pop-up hood device.

3. The pop-up hood device according to claim 2, a fixing pin for fixing the actuator to the base member; a first through hole is provided at the end of the actuator; a second through-hole is provided in the protruding portion so as to penetrate the accommodating portion; the fixing pin is arranged to pass through the first through hole and the second through hole when the end of the actuator is accommodated in the accommodation portion. Pop-up hood device.

4. The pop-up hood device according to claim 3, The pop-up hood device, wherein the base member is a radiator support.

5. An actuator for lifting a hood panel of a moving body, A first through hole is provided at an end portion opposite to the side contacting the hood panel, a housing portion of a base member of the movable body is configured to accommodate a part of the actuator including the end portion, and a fixing pin is disposed so as to pass through a second through hole provided in the housing portion and the first through hole, thereby allowing the actuator to be attached to the base member; Actuator.

6. A base member provided on the movable body and to which an actuator for lifting a hood panel of the movable body is attached, a protrusion that protrudes in a second direction that is a direction intersecting a first direction that is a direction in which the hood panel is lifted by activation of the actuator; a housing portion provided on the protruding portion and configured to house an end portion of the actuator on the opposite side to the side that contacts the hood panel, Base material.

7. 7. The base member according to claim 6, a second through-hole is provided in the protruding portion so as to penetrate the accommodating portion; The actuator is configured to be attachable by arranging a fixing pin so as to pass through a first through hole and the second through hole provided at the end of the actuator while the end of the actuator is accommodated in the accommodation section. Base material.

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