Patent Publication Number: US-2017368985-A1

Title: Vehicle projection device

Description:
TECHNICAL FIELD 
     The present invention relates to a vehicle projection device that projects an image. 
     BACKGROUND ART 
     In a graphic projection lamp described in the specification of Chinese Utility Model Application No. 202382141, a graphic film is disposed inside an lamp outer shell, and a graphic on the graphic film is projected toward an outer side of the lamp outer shell. 
     In such a graphic projection lamp, it is preferable for the image film to be detachable toward an exterior of the lamp outer shell. 
     SUMMARY OF INVENTION 
     Technical Problem 
     In consideration of the above circumstances, an object of the present invention is to obtain a vehicle projection device in which an image member can be detached toward an exterior of a housing body. 
     Solution to Problem 
     A vehicle projection device of a first aspect of the present invention includes a housing body, an image member, and a projection means. The housing body is provided at a vehicle and includes a detachment section. The image member is disposed inside the housing body, includes an image, and is capable of being detached toward an exterior of the housing body via the detachment section. The projection means projects the image toward an outer side of the housing body. 
     A vehicle projection device of a second aspect of the present invention is the vehicle projection device of the first aspect of the present invention, further including a restriction means that restricts incursion of water into the housing body via the detachment section. 
     A vehicle projection device of a third aspect of the present invention is the vehicle projection device of either the first aspect or the second aspect of the present invention, further including an anchor means that anchors the image member inside the housing body. 
     A vehicle projection device of a fourth aspect of the present invention is the vehicle projection device of any one of the first aspect to the third aspect of the present invention, further including a supply body and a connector. The supply body configures the projection means and is disposed such that the detachment section is on one side of the supply body. The connector is disposed inside the housing body via the detachment section, is disposed on the one side of the supply body, is connected to the supply body, and supplies electric power to the supply body. 
     Advantageous Effects of Invention 
     In the vehicle projection device of the first aspect of the present invention, the image member is disposed inside the housing body provided at the vehicle, and the projection means projects the image provided at the image member toward the outer side of the housing body. 
     The housing body includes the detachment section, and the image member can be detached toward the exterior of the housing body via the detachment section. This thereby enables the image member to be detached toward the exterior of the housing body. 
     In the vehicle projection device of the second aspect of the present invention, the restriction means restricts incursion of water into the housing body via the detachment section. This thereby enables incursion of water into the housing body to be suppressed. 
     In the vehicle projection device of the third aspect of the present invention, the anchor means anchors the image member inside the housing body. This thereby enables unintended removal of the image member toward the exterior of the housing body to be suppressed. 
     In the vehicle projection device of the fourth aspect of the present invention, the supply body configures the projection means. The connector is connected to the supply body, and supplies electric power to the supply body. 
     The detachment section is disposed on the one side of the supply body, and the connector is disposed inside the housing body via the detachment section, and is disposed on the one side of the supply body. Accordingly, the size of the vehicle projection device at the other side of the supply body can be reduced, unlike in cases in which the connector is disposed on the other side of the supply body. 
    
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
         FIG. 1  is a face-on view illustrating a vehicle door mirror device of a first exemplary embodiment of the present invention, as viewed from the vehicle rear. 
         FIG. 2  is a perspective view illustrating the vehicle projection device according to the first exemplary embodiment of the present invention, as viewed diagonally from the rear right of the vehicle. 
         FIG. 3  is a side view illustrating the vehicle projection device according to the first exemplary embodiment of the present invention, as viewed from the right of the vehicle. 
         FIG. 4  is a plan view illustrating the vehicle projection device according to the first exemplary embodiment of the present invention, as viewed from above. 
         FIG. 5  is a cross-section (a cross-section taken along line  5 - 5  in  FIG. 4 ) illustrating the vehicle projection device according to the first exemplary embodiment of the present invention, as viewed from the right of the vehicle. 
         FIG. 6  is a perspective view illustrating an anchor claw of a film body in the vehicle projection device according to the first exemplary embodiment of the present invention, as viewed diagonally from the rear right of the vehicle. 
         FIG. 7A  is a cross-section (a cross-section taken at the position of line  5 - 5  in  FIG. 4 ), illustrating relevant portions of a first modified example of the vehicle projection device according to the first exemplary embodiment of the present invention, as viewed from the right of the vehicle. 
         FIG. 7B  is a cross-section (a cross-section taken at the position of line  5 - 5  in  FIG. 4 ), illustrating relevant portions of a second modified example of the vehicle projection device according to the first exemplary embodiment of the present invention, as viewed from the right of the vehicle. 
         FIG. 8  is a perspective view illustrating a vehicle projection device according to a second exemplary embodiment of the present invention, as viewed diagonally from the rear right of the vehicle. 
         FIG. 9  is a face-on view illustrating the vehicle projection device according to the second exemplary embodiment of the present invention, as viewed from the vehicle rear. 
         FIG. 10  is a bottom view illustrating the vehicle projection device according to the second exemplary embodiment of the present invention, as viewed from below. 
         FIG. 11  is a cross-section (a cross-section along line  11 - 11  in  FIG. 10 ) illustrating the vehicle projection device according to the second exemplary embodiment of the present invention, as viewed from the vehicle front. 
     
    
    
     DESCRIPTION OF EMBODIMENTS 
     First Exemplary Embodiment 
       FIG. 1  is a face-on view illustrating a vehicle door mirror device  12 , serving as an installation body installed with a vehicle projection device  10  according to a first exemplary embodiment of the present invention, as viewed from the vehicle rear. Note that in the drawings, the arrow FR indicates a vehicle front direction, the arrow OUT indicates the vehicle width direction outside (vehicle right), and the arrow UP indicates upwards. 
     The vehicle door mirror device  12  of the present exemplary embodiment is provided at a vehicle outside of an up-down direction intermediate portion and vehicle front side end of a side door (specifically, a front side door), serving as a vehicle door. 
     As illustrated in  FIG. 1 , the vehicle door mirror device  12  includes a stay  14 , serving as a fixing member. A vehicle width direction inside end of the stay  14  is fixed to the side door (vehicle body side), thereby fixing the vehicle door mirror device  12  to the side door. 
     A substantially rectangular container-shaped visor  16 , serving as an installation member, is supported on a vehicle width direction outside portion of the stay  14 . The visor  16  is disposed at the vehicle width direction outside of the stay  14 . A substantially rectangular shaped opening  18  is formed penetrating a vehicle rear side wall of the visor  16 , and the opening  18  is open toward the vehicle rear side at the inside of the visor  16 . A substantially rectangular shaped through hole  20  is formed penetrating a lower wall of the visor  16 . The through hole  20  is open toward the lower side at the inside of the visor  16 . 
     An attachment mechanism (not illustrated in the drawings) is fixed inside the visor  16 , and a substantially rectangular plate shaped mirror  22 , serving as a visual recognition means, is attached to the attachment mechanism. The mirror  22  is disposed inside the visor  16 , in the vicinity of the opening  18 . The mirror  22  substantially closes off the opening  18 . A mirror surface  22 A of the mirror  22  faces toward the vehicle rear side, such that the mirror  22  enables visual recognition rearward of the vehicle by an occupant of the vehicle (in particular, the driver), thus assisting the occupant with visual recognition. Moreover, the mirror  22  can be detached from the attachment mechanism. The interior of the visor  16  is open toward the vehicle rear side through the opening  18  when the mirror  22  has been detached from the attachment mechanism. 
     A vehicle projection device  10  is housed inside the visor  16 , at an upper side of the through hole  20 . 
     As illustrated in  FIG. 2  to  FIG. 5 , the vehicle projection device  10  is provided with a substantially rectangular container-shaped housing  24 , serving as a housing body (exterior member). The housing  24  is open at a lower face. The housing  24  is fixed inside the visor  16 , thereby installing the vehicle projection device  10  inside the visor  16 . 
     An elongated rectangular shaped communication hole  26 , serving as a detachment section, is formed penetrating a lower portion of a vehicle rear side wall of the housing  24 . The communication hole  26  extends in the vehicle width direction. A rectangular tube shaped connection tube  28  is integrally formed to an outer side of an upper wall of the housing  24 . The interior of the connection tube  28  is in communication with the interior of the housing  24 . 
     A rectangular plate shaped outer lens  30 , serving as an exposure member, is fixed to a lower side of the housing  24 . The outer lens  30  closes off the opening in the lower face of the housing  24 . A seal is formed between the housing  24  and the outer lens  30 , thereby restricting the incursion of water into the housing  24  from between the housing  24  and the outer lens  30 . The outer lens  30  is disposed inside the through hole  20  of the visor  16 , such that the outer lens  30  closes off the through hole  20 . 
     A case  32 , in the shape of an inverted circular frustum-shaped container and serving as an interior member, is fixed inside the housing  24 . The case  32  is open at an upper face, and light cannot pass through the case  32 . An elongated rectangular shaped opening  34 , serving as an inner detachment section, is formed penetrating a vehicle rear side portion of a peripheral wall of the case  32 . The opening  34  extends in a peripheral direction of the case  32 , and faces the communication hole  26  in the housing  24  along the vehicle front-rear direction. A circular exposure hole  36  is formed penetrating a lower wall of the case  32 . The exposure hole  36  is disposed coaxially to the case  32 . 
     A projection mechanism  38 , serving as a projection means, is provided at the case  32 . 
     The projection mechanism  38  is provided with a rectangular plate shaped circuit board  40 , serving as a supply body. The circuit board  40  is fixed to an upper side of the case  32 . 
     An LED  42 , serving as a light source, is fixed to a lower face of the circuit board  40 . The LED  42  is electrically connected to the circuit board  40 . The LED  42  is housed inside an upper end of the case  32 , and the LED  42  is disposed on an axial center line of the case  32 . 
     A collimator lens  44  that has a substantially H-shaped cross-section profile and that serves as a first lens is coaxially housed inside an upper-side portion of the case  32 . The collimator lens  44  is fixed inside the case  32 . 
     A first image-forming lens  46  that has a substantially U-shaped cross-section profile and that serves as a second lens is coaxially housed inside a lower-side portion of the case  32 . The first image-forming lens  46  is fixed inside the case  32 . A gap  48  is formed between the collimator lens  44  and the first image-forming lens  46 . The gap  48  faces the opening  34  in the case  32  along the vehicle front-rear direction. 
     At a lower side of the first image-forming lens  46 , a second image-forming lens  50  that has a substantially T-shaped cross-section profile and that serves as a third lens is coaxially housed inside the lower-side portion of the case  32 . The second image-forming lens  50  is fixed inside the case  32 . A substantially circular column shaped protrusion portion  50 A is coaxially formed to the second image-forming lens  50 . The protrusion portion  50 A protrudes out toward the lower side, and is fitted into the exposure hole  36  in the case  32 . 
     A rectangular column shaped connector  52  is attached to an upper side of the circuit board  40 . The connector  52  is electrically connected to the circuit board  40 . Cords  54  are electrically connected to the connector  52 . The cords  54  are laid out toward the exterior of the housing  24  via the interior of the connection tube  28  of the housing  24 , and are electrically connected to a power source (not illustrated in the drawings). 
     A grommet  56 , serving as a sealing member, is fitted inside the connection tube  28  of the housing  24 . The cords  54  pass through the grommet  56 . The grommet  56  is elastic and has sealing properties. The grommet  56  is elastically compressed so as to form a seal inside the connection tube  28 . This thereby restricts the incursion of water into the housing  24  from the exterior of the housing  24  via the interior of the connection tube  28 . 
     A film body  58 , serving as an image member, is attached inside the housing  24  and inside the case  32 . 
     The film body  58  is provided with a substantially rectangular plate shaped insertion plate  60 . A rectangular column shaped grip portion  62  is integrally formed to a vehicle rear side end of the insertion plate  60 . The insertion plate  60  is inserted into the housing  24  via the communication hole  26  in the housing  24 , and is fitted into the gap  48  inside the case  32  via the opening  34  in the case  32 . The grip portion  62  is disposed at the exterior of the housing  24 . 
     A circular transmitting hole  64  is formed penetrating a vehicle front side portion of the insertion plate  60 . The transmitting hole  64  is disposed coaxially inside the case  32 . A sheet-shaped graphic film  66  is fixed at an upper side of the insertion plate  60 . The graphic film  66  is disposed at an upper side of the transmitting hole  64 . A graphic  66 A (for example, a symbol), serving as an image, is provided at the graphic film  66  at a location at an upper side of the transmitting hole  64 . Light is able to pass through the graphic film  66 . 
     The insertion plate  60  is formed with an anchor claw  68  (see  FIG. 6 ), serving as an anchor means, at the vehicle rear side of the graphic film  66 . A vehicle front side end (base end) of the anchor claw  68  is integrated to the insertion plate  60 . A vehicle rear side end portion (leading end portion) of the anchor claw  68  is formed with a substantially semicircular column shaped anchor projection  68 A. The anchor projection  68 A protrudes out toward the upper side (or the lower side), and is curved such that an outer peripheral face thereof has a convex profile. When inserting the insertion plate  60  into the housing  24  via the communication hole  26  in the housing  24 , the anchor projection  68 A abuts a peripheral face of the communication hole  26 , such that a portion of the anchor claw  68  other than a vehicle rear side end portion (including the anchor projection  68 A) elastically deforms, and the anchor projection  68 A passes through the communication hole  26 . Accordingly, when inserting the insertion plate  60  into the housing  24 , the portion of the anchor claw  68  other than the vehicle rear side end portion elastically recovers, such that the anchor projection  68 A engages with a vehicle front side face of the vehicle rear side wall of the housing  24 . The film body  58  is thereby anchored in the housing  24 , restricting removal of the film body  58  from the housing  24  and the case  32 . 
     A vehicle front side face of the grip portion  62  is integrally formed with a seal  70  that has a triangular cross-section profile and that serves as a restriction means. The seal  70  is disposed around the entire periphery of the insertion plate  60 . The seal  70  is elastic and has sealing properties, and the seal  70  is elastically compressed due to being squeezed between the grip portion  62  and the vehicle rear side wall of the housing  24 , thereby forming a seal between the grip portion  62  and the vehicle rear side wall of the housing  24 . This thereby restricts the incursion of water into the housing  24  from the exterior of the housing  24  via the communication hole  26 . 
     Next, explanation follows regarding operation of the present exemplary embodiment. 
     In the vehicle projection device  10  of the vehicle door mirror device  12  configured as described above, electric power from the power source is supplied to the LED  42  via the cords  54 , the connector  52 , and the circuit board  40 , and the LED  42  radiates light toward the lower side such that the light passes through (travels through) the collimator lens  44 , the graphic film  66  and the transmitting hole  64  of the film body  58 , the first image-forming lens  46 , the second image-forming lens  50  (exposure hole  36  in the case  32 ), and the outer lens  30  (through hole  20  in the visor  16 ). The graphic  66 A of the graphic film  66  is projected (beamed) onto the ground at the outer side of the vehicle. 
     Note that when the mirror  22  has been detached from the attachment mechanism inside the visor  16 , thus opening up the inside of the visor  16  to the vehicle rear side via the opening  18 , the grip portion  62  of the film body  58  is exposed to the vehicle rear side via the opening  18 . Accordingly, by gripping the grip portion  62 , it is possible to detach the film body  58  toward the exterior of the housing  24 , via the communication hole  26  in the housing  24  and the opening  34  in the case  32 . This thereby enables the film body  58  to be detached toward the exterior of the housing  24 . Accordingly, the graphic film  66  inserted into the gap  48  inside the case  32  via the opening  34  can be changed by swapping the film body  58  (or just the graphic film  66 ) for insertion into the housing  24  via the communication hole  26 , thereby enabling the graphic  66 A projected onto the ground at the outer side of the vehicle to be changed. 
     Moreover, the seal  70  of the film body  58  forms a seal between the grip portion  62  and the vehicle rear side wall of the housing  24 . This thereby restricts the incursion of water into the housing  24  from the exterior of the housing  24  via the communication hole  26 . This thereby enables the incursion of water into the housing  24  via the communication hole  26  to be suppressed. 
     Furthermore, the film body  58  is anchored to the housing  24  by engaging the anchor projection  68 A of the anchor claw  68  of the film body  58  with the vehicle front side face of the vehicle rear side wall of the housing  24 , thus restricting removal of the film body  58  from the housing  24  and the case  32 . This thereby enables unintended removal of the film body  58  from the housing  24  and the case  32  to be suppressed. 
     Moreover, when detaching the film body  58  toward the exterior of the housing  24  via the communication hole  26  in the housing  24 , abutting the anchor projection  68 A of the anchor claw  68  against the peripheral face of the communication hole  26  elastically deforms the portion of the anchor claw  68  other than the vehicle rear side end portion (including the anchor projection  68 A), such that the anchor projection  68 A passes through the communication hole  26 . Accordingly, the anchor claw  68  can be suppressed from hindering detachment of the film body  58  toward the exterior of the housing  24 . 
     First Modified Example 
       FIG. 7A  is a cross-section (a cross-section taken at the position of line  5 - 5  in  FIG. 4 ) illustrating relevant portions of a first modified example of the vehicle projection device  10  according to the present exemplary embodiment, as viewed from the right of the vehicle. 
     As illustrated in  FIG. 7A , in the present modified example, a rectangular shaped ring  72 , serving as a restriction means, is squeezed between the grip portion  62  of the film body  58  and the vehicle rear side wall of the housing  24 . The ring  72  is disposed around the entire periphery of the insertion plate  60  of the film body  58 . The ring  72  is elastic and has sealing properties. The ring  72  is elastically compressed so as to form a seal between the grip portion  62  and the vehicle rear side wall of the housing  24 , thereby restricting the incursion of water into the housing  24  from the exterior of the housing  24  via the communication hole  26 . 
     Second Modified Example 
       FIG. 7B  is a cross-section (a cross-section taken at the position of line  5 - 5  in  FIG. 4 ) illustrating relevant portions of a second modified example of the vehicle projection device  10  according to the present exemplary embodiment, as viewed from the right of the vehicle. 
     As illustrated in  FIG. 7B , in the present modified example, a protrusion  74  that has a rectangular shape as viewed face-on and that configures a restriction means is formed on a vehicle front side face of the grip portion  62  of the film body  58 . The protrusion  74  is configured with a rectangular cross-section profile, and is disposed around the entire periphery of the insertion plate  60  of the film body  58 . 
     A recess  76  that has a rectangular shape as viewed face-on and that configures the restriction means is formed in a vehicle rear side face of the vehicle rear side wall of the housing  24 . The recess  76  has a rectangular cross-section profile, and is disposed around the entire periphery of the communication hole  26  of the housing  24 . 
     The protrusion  74  is inserted into (fitted into) the recess  76 . An incursion route of water into the communication hole  26  from the exterior of the housing  24  is lengthened by the recess  76  and the protrusion  74 , thereby restricting the incursion of water into the housing  24  from the exterior of the housing  24  via the communication hole  26 . 
     Note that in the present modified example, the protrusion  74  is formed on the vehicle front side face of the grip portion  62  of the film body  58 , and the recess  76  is formed in the vehicle rear side face of the vehicle rear side wall of the housing  24 . However, configuration may be made in which the recess  76  is formed in the vehicle front side face of the grip portion  62  of the film body  58 , and the protrusion  74  is formed on the vehicle rear side face of the vehicle rear side wall of the housing  24 . 
     Second Exemplary Embodiment 
       FIG. 8  is a perspective view illustrating a vehicle projection device  80  according to a second exemplary embodiment of the present invention, as viewed diagonally from the rear right of the vehicle.  FIG. 9  is a face-on view illustrating the vehicle projection device  80  as viewed from the rear of the vehicle.  FIG. 10  is a bottom view illustrating the vehicle projection device  80  as viewed from below.  FIG. 11  is a cross-section (a cross-section taken along line  11 - 11  in  FIG. 10 ) illustrating the vehicle projection device  80  as viewed from the front of the vehicle. 
     The vehicle projection device  80  according to the present exemplary embodiment has substantially the same configuration as that of the first exemplary embodiment described above, but differs in the following respects. 
     As illustrated in  FIG. 8  to  FIG. 11 , the vehicle projection device  80  according to the present exemplary embodiment is not provided with the housing  24 , the outer lens  30 , or the grommet  56  of the first exemplary embodiment, and the case  32  functions as a housing body. The case  32  is fixed inside the visor  16 , thereby fixing the vehicle projection device  80  inside the visor  16 . 
     The case  32  is provided with a rectangular box-shaped housing box  82 , serving as a housing section. The case  32  is configured such that the housing box  82  is integrally provided at an outer periphery of a case body  84  configuring the case  32  of the first exemplary embodiment described above, at a portion of the case body  84  excluding a lower end portion of the case body  84 . An outer side of a vehicle right side wall of the housing box  82  is integrally formed with a rectangular tube shaped connection tube  86 , serving as a detachment section. The interior of the connection tube  86  is in communication with the interior of the housing box  82 , and a lower face of the interior of the connection tube  86  is set flush with a lower face of the interior of the housing box  82 . The lower face of the interior of the housing box  82  is formed with an anchor recess  88  having a semicircular cross-section profile. A peripheral face of the anchor recess  88  is curved with a recessed profile. 
     The lower end portion of the case body  84  is disposed inside the circular through hole  20  in the visor  16 . The lower end portion of the case body  84  and the second image-forming lens  50  close off the through hole  20 . A seal is formed between the case body  84  and the second image-forming lens  50 , thereby restricting the incursion of water into the case  32  from between the case body  84  and the second image-forming lens  50 . 
     The opening  34  in the case  32  is formed at a vehicle right side portion of a peripheral wall of the case body  84 . The opening  34  faces the interior of the connection tube  86  of the housing box  82  along the vehicle width direction. 
     The housing box  82  is open at an upper face, and the circuit board  40  is housed inside the housing box  82  at an upper side of the case body  84 . A rectangular block shaped heat dissipating block  90 , serving as a heat dissipating member, is disposed inside the opening in the upper face of the housing box  82 . The heat dissipating block  90  is placed at the upper side of the circuit board  40 . A seal is formed between the housing box  82  and the heat dissipating block  90 , for example by what is known as “potting”, thereby restricting the incursion of water into the case  32  from between the housing box  82  and the heat dissipating block  90 . The heat dissipating block  90  is, for example, made from aluminum, and has high thermal conductivity. The heat dissipating block  90  transmits heat generated by the circuit board  40  and the LED  42  such that the heat is released toward the exterior of the case  32  during light emission from the LED  42 . 
     The connection tube  86  of the housing box  82  is disposed at the lower side of the circuit board  40 , and the connector  52  is housed inside the housing box  82  via the interior of the connection tube  86 , and is attached to the lower side of the circuit board  40 . Moreover, the cords  54  are laid out toward the exterior of the case  32  via the interior of the connection tube  86 . 
     A grommet  92 , serving as a restriction means (sealing member), is fitted into the connection tube  86  of the housing box  82 . The cords  54  pass through the grommet  92 . The grommet  92  is elastic and has sealing properties, and the grommet  92  is elastically compressed so as to form a seal inside the connection tube  86 . This thereby restricts the incursion of water into the case  32  from the exterior of the case  32  via the interior of the connection tube  86 . 
     The film body  58  is integrally formed with a grip portion  62  at a vehicle right side end of the insertion plate  60 . The grip portion  62  projects out toward the upper side. The film body  58  is inserted into the case  32  via the interior of the connection tube  86  of the housing box  82 , such that the insertion plate  60  is disposed at the lower side of the connector  52 . The grip portion  62  is disposed at the vehicle right side of the connector  52 . The insertion plate  60  is fitted into the gap  48  inside the case body  84  via the opening  34  in the case body  84 , and the transmitting hole  64  and the graphic film  66  are provided at a vehicle left side portion of the insertion plate  60 . 
     The anchor claw  68  of the insertion plate  60  is formed on the vehicle right side of the graphic film  66 , and a vehicle right side end (base end) of the anchor claw  68  is integrated to the insertion plate  60 . The anchor projection  68 A of the anchor claw  68  is formed at a vehicle left side end portion (leading end portion) of the anchor claw  68 , and the anchor projection  68 A projects out toward the lower side. When inserting the film body  58  into the case  32  via the interior of the connection tube  86  of the housing box  82 , the anchor projection  68 A abuts the lower face of the interior of the connection tube  86  and the lower face of the interior of the housing box  82 , such that a portion of the anchor claw  68  other than the vehicle left side end portion (including the anchor projection  68 A) elastically deforms, and the anchor projection  68 A is inserted into the housing box  82  via the interior of the connection tube  86 . Accordingly, when the film body  58  has been inserted into the case  32 , the portion of the anchor claw  68  other than the vehicle left side end portion elastically recovers, and the anchor projection  68 A engages (fits together with) the anchor recess  88  in the housing box  82 . The film body  58  is thus anchored to the case  32 , restricting removal of the film body  58  from the case  32 . 
     Next, explanation follows regarding operation of the present exemplary embodiment. 
     In the vehicle projection device  80  of the vehicle door mirror device  12  configured as described above, electric power from the power source is supplied to the LED  42  via the cords  54 , the connector  52 , and the circuit board  40 , and the LED  42  radiates light toward the lower side such that the light passes through (travels through) the collimator lens  44 , the graphic film  66  and the transmitting hole  64  of the film body  58 , the first image-forming lens  46 , and the second image-forming lens  50  (the exposure hole  36  in the case  32  and the through hole  20  in the visor  16 ). The graphic  66 A of the graphic film  66  is projected (beamed) onto the ground at the outer side of the vehicle. 
     Note that when the mirror  22  has been detached from the attachment mechanism inside the visor  16 , thus opening up the inside of the visor  16  to the vehicle rear side via the opening  18 , the connection tube  86  of the case  32  is exposed to the vehicle rear side via the opening  18 . Accordingly, by detaching the grommet  92  from the interior of the connection tube  86  and gripping the grip portion  62  of the film body  58  inside the housing box  82  of the case  32  via the interior of the connection tube  86 , it is possible to detach the film body  58  toward the exterior of the case  32 , via the interior of the connection tube  86 . This thereby enables the film body  58  to be detached toward the exterior of the case  32 . Accordingly, the graphic film  66  inserted into the gap  48  inside the case body  84  via the opening  34  can be changed by swapping the film body  58  (or just the graphic film  66 ) for insertion into the case  32  via the interior of the connection tube  86 , thereby enabling the graphic  66 A projected onto the ground at the outer side of the vehicle to be changed. 
     Moreover, the grommet  92  forms a seal inside the connection tube  86 . This thereby restricts the incursion of water into the case  32  from the exterior of the case  32  via the interior of the connection tube  86 . This thereby enables the incursion of water into the case  32  via the interior of the connection tube  86  to be suppressed. 
     Moreover, the grommet  92  not only restricts the incursion of water to the location of the film body  58  inside the case  32 , but also restricts the incursion of water to the location of the connector  52  inside the case  32 . Accordingly, the incursion of water into the case  32  can be restricted by a simple configuration. 
     Moreover, the film body  58  is anchored to the case  32  by engaging the anchor projection  68 A of the anchor claw  68  of the film body  58  with the anchor recess  88  in the case  32 , thereby restricting removal of the film body  58  from the case  32 . This thereby enables unintentional removal of the film body  58  from the case  32  to be suppressed. 
     Moreover, when detaching the film body  58  toward the exterior of the case  32  via the interior of the connection tube  86  of the case  32 , abutting the anchor projection  68 A of the anchor claw  68  against the lower face of the interior of the housing box  82  and the lower face of the interior of the connection tube  86  elastically deforms the portion of the anchor claw  68  other than the vehicle left side end portion (including the anchor projection  68 A), such that the anchor projection  68 A passes through the interior of the housing box  82  and the interior of the connection tube  86 . Accordingly, the anchor claw  68  can be suppressed from hindering detachment of the film body  58  toward the exterior of the case  32 . 
     Moreover, the connection tube  86  of the case  32  is disposed at the lower side of the circuit board  40 , and the connector  52  is disposed inside the case  32  via the interior of the connection tube  86  and is disposed at the lower side of the circuit board  40 . Accordingly, the size of the vehicle projection device  80  at the upper side of the circuit board  40  can be reduced, unlike in cases in which the connector  52  is disposed at the upper side of the circuit board  40 . Moreover, the volume of the heat dissipating block  90  at the upper side of the circuit board  40  can be made larger, thereby enabling heat generated by the circuit board  40  and the LED  42  when the LED  42  is radiating light to be effectively transmitted to the heat dissipating block  90 , and thus enabling the heat to be effectively released toward the exterior of the case  32 . 
     Note that in the first exemplary embodiment and the second exemplary embodiment described above, the vehicle projection device  10 ,  80  is installed to the vehicle door mirror device  12 . However, it is sufficient that the vehicle projection device  10 ,  80  be capable of projecting the graphic  66 A toward the outer side of the vehicle. For example, the vehicle projection device  10 ,  80  may be installed to a vehicle door (including a door handle). The vehicle projection device  10 ,  80  may even be installed at a location on the vehicle cabin side of a door, as long as the vehicle projection device  10 ,  80  is capable of projecting the graphic  66 A toward the outer side of the vehicle when the door has been opened. 
     The disclosure of Japanese Patent Application No. 2015-8820, filed on Jan. 20, 2015, is incorporated in its entirety by reference herein. 
     EXPLANATION OF THE REFERENCE NUMERALS 
     
         
           10  vehicle projection device 
           24  housing (housing body) 
           26  communication hole (detachment section) 
           32  case (housing body) 
           38  projection mechanism (projection means) 
           40  circuit board (supply body) 
           52  connector 
           58  film body (image member) 
           66 A graphic (image) 
           68  anchor claw (anchor means) 
           70  seal (restriction means) 
           72  ring (restriction means) 
           74  protrusion (restriction means) 
           76  recess (restriction means) 
           80  vehicle projection device 
           86  connection tube (detachment section) 
           92  grommet (restriction means)