Vehicle antitheft system

Abstract

To provide a vehicle anti-theft system capable of preventing a vehicle from traveling.SOLUTION: A shielding member 45 supported by a seat support frame 15 on which a front seat 14 is placed, a first slider 30 and a second slider that allow the shielding member 45 to move in a A2 part in the vehicle front-rear direction with respect to the seat support frame 15, and a first lock mechanism that fixes the shielding member 45 in a A2 part in the vehicle front-rear direction in a state in which the shielding member 45 is stopped at a first position where a pedal arrangement space in the vehicle cabin is opened; And a second lock mechanism for fixing the pedal arrangement space in a stopped state at a second position where the pedal arrangement space is closed.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present disclosure relates to a vehicle anti-theft system that is provided in a vehicle interior to prevent theft of the vehicle. [Background technology]

[0002] Examples of vehicle theft prevention systems installed inside a vehicle to prevent vehicle theft are described in Patent Documents 1 and 2. The vehicle theft prevention system described in Patent Document 1 includes a box body with an internal space and an opening on one side of the box body for inserting and removing a pedal, and is characterized by a lower lock arm located inside the box body that restrains the pedal, a fixing device whose base end is fixed to a rotating shaft and which rotates around this rotating shaft as a fulcrum, and the rotating shaft is supported by a pair of upright walls located inside the box body and rotated by a lock lever with a key located on the outside of the box body.

[0003] In addition, the vehicle theft prevention system described in Patent Document 2 is installed on a control panel inside the vehicle cabin or under the console box when the vehicle is not in use, and is equipped with a winder that winds up a sheet member in a retractable manner, so that the sheet member can be retracted to cover at least the starting key portion and can be attached and detached inside the vehicle cabin. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2024-43172 [Patent Document 2] Japanese Patent Application Laid-Open No. 2000-16249 Summary of the Invention [Problem to be solved by the invention]

[0005] The inventors of the present application have recognized that the vehicle theft prevention systems described in Patent Documents 1 and 2 both allow the vehicle to be driven, and therefore there is a problem that there is room for improvement.

[0006] An object of the present disclosure is to provide a vehicle theft prevention system that can prevent a vehicle from being driven. [Means for solving the problem]

[0007] This embodiment has a vehicle theft prevention system that includes a shielding member supported by a seat support frame on which a seat for an occupant is placed, a slide mechanism that allows the shielding member to move in the fore-and-aft direction of the vehicle relative to the seat support frame, a first locking mechanism that fixes the shielding member in a stopped state in the fore-and-aft direction at a first position that opens a pedal arrangement space in the interior of the vehicle, and a second locking mechanism that fixes the shielding member in a stopped state in the fore-and-aft direction, forward of the first position and that closes the pedal arrangement space. [Effects of the Invention]

[0008] According to this embodiment, it is possible to provide a vehicle theft prevention system that can prevent a vehicle from being driven. [Brief explanation of the drawings]

[0009] [Figure 1] 1(A) and 1(B) are schematic side views of a vehicle equipped with a vehicle anti-theft system. [Figure 2] 1 is a schematic side view of a vehicle anti-theft system in a state where a shielding member is stopped in a non-use position; [Figure 3] 1 is a schematic side view of a vehicle anti-theft system in a state where a shielding member is stopped in a use position; [Figure 4] Figure 4(A) is a schematic plan view of the vehicle anti-theft system when the shielding member is stopped in the unused position, and Figure 4(B) is a schematic plan view of the vehicle anti-theft system when the shielding member is stopped in the used position. [Figure 5] FIG. 1 is a plan view showing the structure of a vehicle anti-theft system. [Figure 6] FIG. 2 is a front view of the vehicle anti-theft system. [Figure 7] FIG. 2 is a rear view of the vehicle anti-theft system; [Figure 8] FIG. 2 is a perspective view showing a shielding member of the vehicle anti-theft system. [Figure 9] 9(A) and 9(B) are schematic side views showing the configuration of the reclining mechanism of the front seat. [Figure 10] 10(A) and 10(B) are schematic side views showing the configuration of the reclining mechanism of the front seat. [Figure 11] FIG. 10 is a schematic plan view showing a locking mechanism of the shielding member. [Figure 12] FIG. 10 is a schematic plan view showing a locking mechanism of the shielding member. DETAILED DESCRIPTION OF THE INVENTION

[0010] (overview) Hereinafter, several embodiments of the vehicle theft prevention system will be described with reference to the drawings. In the drawings for explaining the embodiments of the vehicle theft prevention system, the same parts are generally designated by the same reference numerals, and repeated description thereof will be omitted.

[0011] As shown in Figures 1(A) and 1(B), the vehicle anti-theft system 10 is installed in the interior 12 of a vehicle 11. More specifically, as shown in Figures 2 and 3, a front seat assembly 13 is installed in the interior 12, and the vehicle anti-theft system 10 is attached to the front seat assembly 13. The front seat assembly 13 has a front seat 14 and a seat support frame 15. The seat support frame 15 is a mount that supports the front seat 14 and the vehicle anti-theft system 10.

[0012] The front seat 14 is a mechanism on which an occupant 16 of the vehicle 11 sits and maintains a posture, and includes a seat portion 17, a backrest 18, and a headrest 19. The occupant 16 is the owner of the vehicle 11 or a legitimate driver approved by the owner of the vehicle 11. The seat portion 17 is an element on which the occupant 16 sits, and extends substantially horizontally. The backrest 18 is connected to the rear end of the seat portion 17 and extends upward from the seat portion 17. As shown in FIGS. 2 and 3 , a base plate 73 is fixed to the seat portion 17, and an arm plate 74 is fixed to the backrest 18. The base plate 73 and the arm plate 74 are connected via a hinge shaft 20.

[0013] As shown in FIG. 5 , when the front seat 14 is viewed from above, the base plate 73, the arm plate 74, and the hinge shaft 20 are provided on both sides of the front seat 14 in the width direction A1. Two base plates 73 are arranged between two arm plates 74 in the width direction A1. Furthermore, the first slider 30 and the second slider 31 are arranged between the two base plates 73 in the width direction A1. The two base plates 73 include a base plate 73A provided on a side of the first slider 30 and a base plate 73B provided on a side of the second slider 31. The two arm plates 74 include an arm plate 74A provided on a side of the first slider 30 and an arm plate 74B provided on a side of the second slider 31. The base plate 73, the arm plate 74, and the hinge shaft 20 are all made of metal.

[0014] For this reason, the backrest 18 is configured to be able to move and stop within a predetermined angular range with respect to the seat portion 17 around the hinge shaft 20. The hinge shaft 20 is disposed along the width direction A1 of the vehicle 11, i.e., the left-right direction, and is disposed substantially horizontally. The headrest 19 is attached to the end of the backrest 18 opposite the point where it is connected to the seat portion 17. The headrest 19 is an element that supports the head 16A of the occupant 16, thereby restricting the amount of rearward movement of the head 16A along the fore-and-aft direction A2 of the vehicle 11.

[0015] The vehicle 11 has a floor panel 21 that constitutes part of the vehicle body, and the floor panel 21 is disposed substantially horizontally. A dash panel 90 as shown in FIGS. 4(A) and 4(B) is connected to the front end of the floor panel 21 in the front-rear direction A2 of the vehicle 11. The dash panel 90 is made of a metal material, such as a steel plate, and extends in the height direction of the vehicle 11. In a plan view of the vehicle 11, a portion of the dash panel 90 is curved to provide a pedal arrangement space 93. The pedal arrangement space 93 is a recess, and an accelerator pedal 94, a brake pedal 95, and a parking brake pedal 97 are provided in the pedal arrangement space 93.

[0016] The accelerator pedal 94 and the brake pedal 95 are elements that are operated (pressed) by the occupant 16 with the foot 61. The accelerator pedal 94 is operated to adjust the output of a driving force source mounted on the vehicle 11. The driving force source includes an engine and an electric motor. The brake pedal 95 is operated to operate a braking device that applies braking force to the wheels 96. The parking brake pedal 97 is operated to generate and release a parking brake force that keeps the vehicle 11 in a parked state.

[0017] 3, the seat support frame 15 is provided on the floor panel 21. That is, in the front-rear direction A2, the seat support frame 15 is disposed rearward of the dash panel 90. The seat support frame 15 is made up of various elements.

[0018] The seat support frame 15 is an element that indirectly supports the load of the front seat 14. The various elements that make up the seat support frame 15 are made of metal, such as steel pipes or cold-rolled steel plates. As shown in FIG. 5 , the seat support frame 15 has a first rail 22, a first front leg 23, a first rear leg 24, a second rail 25, a second front leg 26, a second rear leg 27, a front connecting member 28, and a rear connecting member 29.

[0019] The first rail 22 and the second rail 25 are both rod members arranged along the front-rear direction A2 of the vehicle 11. As shown in FIGS. 6 and 7, the first rail 22 and the second rail 25 are arranged at an interval in the width direction A1. In a plan view of the seat support frame 15, the first rail 22 and the second rail 25 are arranged parallel to each other. The plan view is a state in which the seat support frame 15 is viewed from directly above in the vertical direction, that is, in the direction of gravity. The first rail 22 and the second rail 25 are arranged approximately horizontally.

[0020] Furthermore, a first front leg 23 is attached to the front end of the first rail 22, and a first rear leg 24 is attached to the rear end of the first rail 22. Furthermore, a second front leg 26 is attached to the front end of the second rail 25, and a second rear leg 27 is attached to the rear end of the second rail 25. The first front leg 23, the first rear leg 24, the second front leg 26, and the second rear leg 27 are each fixed to the floor panel 21 by fixing elements, for example, bolts.

[0021] The first rail 22 and the second rail 25 are connected by a plurality of connecting members, for example, front connecting members 28 and rear connecting members 29. In a plan view of the seat support frame 15, the front connecting members 28 and the rear connecting members 29 are arranged at an interval in the fore-and-aft direction A2 of the vehicle 11. In a plan view of the seat support frame 15, the front connecting members 28 and the rear connecting members 29 are both arranged along the width direction A1 of the vehicle 11. In addition, in a plan view of the seat support frame 15, the front connecting members 28 and the rear connecting members 29 are arranged parallel to each other. The front connecting members 28 and the rear connecting members 29 serve to hold the first rail 22 and the second rail 25 upright from the floor panel 21 and to reinforce them.

[0022] The first slider 30 is supported by the first rail 22, and the second slider 31 is supported by the second rail 25. The first slider 30 and the second slider 31 are elements that indirectly receive the load of the front seat 14. The first slider 30 and the second slider 31 are made of a metal, such as a steel pipe or a cold-rolled steel plate. The first slider 30, when supported by the first rail 22, is configured to be able to move and stop within a predetermined range along the front-rear direction A2. The second slider 31, when supported by the second rail 25, is configured to be able to move and stop within a predetermined range along the front-rear direction A2.

[0023] A plurality of seat support pins, for example, two seat support pins 32 and 33, are attached to the first slider 30. Furthermore, a plurality of seat support pins, for example, two seat support pins 34 and 35, are attached to the second slider 31. The seat support pins 32 and 33 are elements having shaft portions that protrude vertically from the upper surface of the first slider 30, and the seat support pins 34 and 35 are elements having shaft portions that protrude vertically from the upper surface of the second slider 31. The seat support pins 32, 33, 34, and 35 are elements that support the weight of the front seat 14, and the seat support pins 32, 33, 34, and 35 are all made of metal, for example, iron, brass, stainless steel, carbon steel, etc.

[0024] The seat support pins 32, 33 are arranged at a distance from each other in the front-rear direction A2. The seat support pin 32 is arranged in front of the seat support pin 33 in the front-rear direction A2. The seat support pins 34, 35 are arranged at a distance from each other in the front-rear direction A2. The seat support pin 34 is arranged in front of the seat support pin 35 in the front-rear direction A2. The seat support pins 32, 34 are arranged at the same position in the front-rear direction A2, and the seat support pins 33, 35 are arranged at the same position in the front-rear direction A2.

[0025] A seat support plate 36 is supported by seat support pins 32, 33, 34, and 35. The seat support plate 36 is an element that supports the load of the front seat 14. The seat support plate 36 is made of a metal, such as steel, aluminum, or stainless steel. In a plan view of the front seat 14, the outer periphery of the seat support plate 36 is quadrilateral, such as a rectangle or a square. In a plan view of the front seat 14, the arrangement area of ​​the seat support plate 36 is within the arrangement area of ​​the sitting portion 17 of the front seat 14.

[0026] An annular washer 37 is attached to each of the seat support pins 32, 33, 34, and 35. The washer 37 is positioned and fixed in the vertical direction relative to each of the seat support pins 32, 33, 34, and 35 by a fixing element. The washer 37 is made of a metal such as steel, aluminum, or stainless steel. The fixing element includes a nut, a sleeve, and the like.

[0027] The seat support plate 36 is fixed to the seat support pins 32, 33, 34, and 35 while being sandwiched between a washer 37 and a fixing element. With the seat support plate 36 fixed to the seat support pins 32, 33, 34, and 35, the seat support plate 36 is held substantially horizontal. There is a vertical space between the seat support plate 36 and the first and second sliders 30 and 31. The two base plates 73 mentioned above are fixed to the upper surface of the seat support plate 36 at a distance from each other.

[0028] The front seat 14 is placed on a seat support plate 36. The seat portion 17 of the front seat 14 and the seat support plate 36 are fixed together by fixing elements, such as brackets, bolts, nuts, etc.

[0029] A front-rear adjustment lever 38 is attached to the first slider 30 and the second slider 31. The front-rear adjustment lever 38 is operated by the occupant 16 to adjust the position of the front seat 14 in the front-rear direction A2. The front-rear adjustment lever 38 is made of a metal, such as steel. The front-rear adjustment lever 38 is a rod member that is curved and arranged in a substantially horizontal plane, and both ends of the front-rear adjustment lever 38 are connected to the first slider 30 and the second slider 31, respectively.

[0030] The front-rear adjustment lever 38 is operable around a support shaft 39 in a side view of the seat support frame 15. The support shaft 39 is provided on each of the first slider 30 and the second slider 31. The front-rear adjustment lever 38 is biased clockwise by an elastic member, for example, a metal spring. A seat lock mechanism is provided to prevent the first slider 30 from moving in the front-rear direction A2 relative to the first rail 22. In addition, a seat lock mechanism is provided to prevent the second slider 31 from moving in the front-rear direction A2 relative to the second rail 25.

[0031] Unless the occupant 16 operates the front-rear adjustment lever 38, the lever 38 is stopped in its initial position. Therefore, the first slider 30 and the second slider 31 are prevented from moving in the front-rear direction A2 by the seat lock mechanism. When the occupant 16 operates the front-rear adjustment lever 38 against the biasing force of the elastic member and the front-rear adjustment lever 38 is moved counterclockwise by a predetermined angle around the support shaft 39 in the figure, the seat lock mechanism is released. Therefore, the occupant 16 can apply force to the front seat 14 to move the first slider 30 and the second slider 31 in the front-rear direction A2.

[0032] Furthermore, a bracket 40 is fixed to the first slider 30, and a bracket 41 is fixed to the second slider 31. The bracket 40 protrudes toward the second slider 31, and the bracket 41 protrudes toward the first slider 30. The brackets 40 and 41 are made of a metal such as steel, aluminum, or stainless steel.

[0033] A support plate 42 is fixed to the brackets 40, 41. The support plate 42 is disposed between the first slider 30 and the second slider 31. The support plate 42 is made of a metal such as steel, aluminum, or stainless steel. When the first slider 30 and the second slider 31 are moved in the front-to-rear direction A2, the support plate 42 is moved in the front-to-rear direction A2 together with the first slider 30 and the second slider 31.

[0034] A plurality of rails, for example, two rails 43, are fixed to the support plate 42. The two rails 43 are made of a metal, such as steel, aluminum, or stainless steel. The two rails 43 extend along the front-rear direction A2 and are arranged substantially horizontally. In a plan view of the seat support frame 15, the two rails 43 are arranged at an interval in the width direction A1 and are arranged parallel to each other.

[0035] The sliders 44 are supported by two rails 43. The sliders 44 are made of a metal such as steel, aluminum, or stainless steel. The two sliders 44 are configured to be able to move and stop within a predetermined range in the front-to-rear direction A2 while supported by the rails 43. The two sliders 44 are connected to the rails 43 so as not to move in the vertical direction.

[0036] A shielding member 45 is provided. The shielding member 45 is provided to prevent a hypothetical person 60 from operating pedals 70, 71, and 72 with a foot 61 while sitting in the front seat 14. The hypothetical person 60 is not the owner of the vehicle 11 and is not authorized by the owner of the vehicle 11. The hypothetical person 60 may, for example, be someone who intends to steal the vehicle 11. The material of the shielding member 45 is a metal that does not easily deform even when subjected to external forces, such as steel, aluminum, or stainless steel. As shown in FIGS. 7 and 8 , the shielding member 45 has an upper plate 46, side plates 47 and 48, a skirt plate 49, and a front plate 50.

[0037] In a plan view of the seat support frame 15, the outer peripheral shape of the upper plate 46 is substantially quadrangular, for example, square or rectangular. The upper plate 46 is disposed substantially horizontally, and two sliders 44 are fixed to the lower surface of the upper plate 46. Therefore, the shielding member 45 can move together with the two sliders 44 in the front-rear direction A2.

[0038] Two guide holes 51 are provided penetrating the upper plate 46 in the thickness direction. The two guide holes 51 are arranged along the front-rear direction A2 and are arranged parallel to each other. Parts of the length of the sheet support pins 32, 34 are respectively arranged in the guide holes 51. When the shielding member 45 is moved along the front-rear direction A2, the movement of the shielding member 45 is not hindered by the sheet support pins 32, 34.

[0039] A pressing member 92 is provided on the upper plate 46. The pressing member 92 is an element for preventing operation of the front-rear adjustment lever 38. The pressing member 92 protrudes downward from the lower surface of the upper plate 46. The pressing member 92 is made of a material that is not easily deformed when pressed against the front-rear adjustment lever 38, such as metal or wood. The pressing member 92 is disposed between the side plates 47 and 48, and has a predetermined length in the front-rear direction A2. In other words, the pressing member 92 is disposed parallel to the side plates 47, 48.

[0040] When the shielding member 45 is viewed from the side, the amount by which the pressing member 92 protrudes from the lower surface of the upper plate 46 varies depending on the position in the front-rear direction A2. That is, the lower end (lower surface) 92A of the pressing member 92 is inclined with respect to the horizontal plane. Specifically, the lower end 92A is inclined in a direction such that the amount by which it protrudes from the lower surface of the upper plate 46 increases as it moves away from the front plate 50 rearward.

[0041] In the vertical direction when the shielding member 45 is supported by the two rails 43 via the two sliders 44, the upper plate 46 is disposed between the seat support plate 36 and the first and second sliders 30 and 31. In addition, in a plan view of the seat support frame 15, the seat support pins 33 and 35 are disposed behind the shielding member 45. In other words, the seat support pins 33 and 35 are disposed outside the movement range of the shielding member 45.

[0042] The side plates 47, 48 are each connected to an edge of the upper plate 46 along the front-rear direction A2. The side plates 47, 48 both protrude downward from the upper plate 46 approximately perpendicularly. The side plates 47 and 48 are arranged parallel to each other and spaced apart in the width direction A1. With the shielding member 45 supported by the two rails 43 via the two sliders 44, the seat support frame 15 is positioned between the side plates 47 and 48.

[0043] Side plate 47 is provided with an anti-malfunction mechanism 80 and a locking mechanism 81, and side plate 48 is provided with an anti-malfunction mechanism 82 and a locking mechanism 83. Anti-malfunction mechanisms 80 and 82 are provided to prevent shielding member 45 from being inadvertently activated in a direction that moves it closer to dash panel 90. Locking mechanisms 81 and 83 are provided to prevent shielding member 45 from being activated in a direction that moves it away from dash panel 90.

[0044] The malfunction prevention mechanism 80 is disposed in front of the locking mechanism 81 in the front-to-rear direction A2. The malfunction prevention mechanism 80 has a key cylinder 80A and a lock pin 80B, and the locking mechanism 81 has a key cylinder 81A and a lock pin 81B. When a key is inserted into the key cylinder 80A and rotated a predetermined angle in the first direction, the locking pin 80B protrudes along the width direction A1 and stops. When the key is removed from the key cylinder 80A, the locking pin 80B is held in a stopped position, i.e., the locked position. When a key is inserted into the key cylinder 80A and rotated a predetermined angle in the second direction, the locking pin 80B retracts along the width direction A1 and stops. When the key is removed from the key cylinder 80A, the locking pin 80B stops in the unlocked position.

[0045] In the locking mechanism 81, when a key is inserted into the key cylinder 81A and rotated a predetermined angle in the first direction, the lock pin 81B protrudes along the width direction A1 and stops. When the key is removed from the key cylinder 81A, the lock pin 81B remains in a stopped position, i.e., the locked position. When the key is inserted into the key cylinder 81A and rotated a predetermined angle in the second direction, the lock pin 81B retracts along the width direction A1 and stops. When the key is removed from the key cylinder 81A, the lock pin 81B stops in the unlocked position.

[0046] The malfunction prevention mechanism 82 is disposed in front of the locking mechanism 83 in the front-to-rear direction A2. The malfunction prevention mechanism 82 has a key cylinder 82A and a lock pin 82B, and the locking mechanism 83 has a key cylinder 83A and a lock pin 83B. When a key is inserted into the key cylinder 82A and rotated a predetermined angle in the first direction, the locking pin 82B protrudes along the width direction A1 and stops. When the key is removed from the key cylinder 82A, the locking pin 82B is held in a stopped position, i.e., the locked position. When a key is inserted into the key cylinder 82A and rotated a predetermined angle in the second direction, the locking pin 82B retracts along the width direction A1 and stops. When the key is removed from the key cylinder 82A, the locking pin 82B stops in the unlocked position.

[0047] In the locking mechanism 83, when a key is inserted into the key cylinder 83A and rotated a predetermined angle in the first direction, the lock pin 83B protrudes along the width direction A1 and stops. When the key is removed from the key cylinder 83A, the lock pin 83B remains in the stopped position, i.e., the locked position. When the key is inserted into the key cylinder 83A and rotated a predetermined angle in the second direction, the lock pin 83B retracts along the width direction A1 and stops. When the key is removed from the key cylinder 83A, the lock pin 83B stops in the unlocked position.

[0048] The skirt plate 49 is connected to the front ends of the side plates 47, 48 in the front-rear direction A2. The skirt plate 49 extends in the vertical direction and also along the width direction A1. The front plate 50 is connected to the front end of the top plate 46 in the front-rear direction A2. The front plate 50 extends in the vertical direction and also along the width direction A1. The front plate 50 is positioned higher than the skirt plate 49 in the vertical direction. In addition, an opening 52 is provided between the front plate 50 and the skirt plate 49. The opening 52 is connected to the space C1 between the side plates 47 and 48.

[0049] The skirt plate 49 and the front plate 50 are positioned forward of the front end of the seat 17, regardless of the position of the shielding member 45 in the front-to-rear direction A2. The upper end 50A of the front plate 50 is positioned below the upper end 17A of the front part of the seat 17. Furthermore, when the shielding member 45 is moved in the front-to-rear direction A2 together with the two sliders 44, the front end of the front-to-rear adjustment lever 38 moves in and out of the opening 52.

[0050] In addition, in the vertical direction, the lower ends of the side plates 47, 48 and the skirt plate 49 are located between the lower ends of the first rail 22 and the second rail 25 and the floor panel 21. Therefore, when the shielding member 45 is moved along the front-rear direction A2 together with the two sliders 44, the side plates 47, 48 and the skirt plate 49 can be prevented from rubbing against the floor panel 21.

[0051] Furthermore, a locking mechanism 84 is provided on the front panel 50. A plurality of locking mechanisms 84 are provided at intervals in the width direction A1. The locking mechanisms 84 are provided to prevent the shielding member 45 from being operated in a direction away from the dash panel 90. The locking mechanism 84 has a key cylinder 84A and a locking pin 84B.

[0052] When a key is inserted into the key cylinder 84A and rotated a predetermined angle in the first direction, the lock pin 84B protrudes along the front-to-rear direction A2 and stops. When the key is removed from the key cylinder 84A, the lock pin 84B remains in the stopped position, i.e., the locked position. When the key is inserted into the key cylinder 84A and rotated a predetermined angle in the second direction, the lock pin 84B retracts along the front-to-rear direction A2 and stops. When the key is removed from the key cylinder 84A, the lock pin 84B stops in the unlocked position.

[0053] The dash panel 90 is provided with a plurality of lock sleeves 91. The lock sleeves 91 are arranged at intervals along the width direction A1. The lock mechanism 84 and the lock sleeve 91 are arranged at the same position in the vertical direction. The lock mechanism 84 and the lock sleeve 91 are also arranged at the same position in the width direction A1. The lock sleeve 91 has a structure that allows the lock pin 84B to move in and out and to be engaged and released.

[0054] When the lock pin 84B is engaged with the lock sleeve 91, the shielding member 45 is prevented from moving in the fore-and-aft direction A2 away from the dash panel 90. When the lock pin 84B is released from the lock sleeve 91, the shielding member 45 can move in the fore-and-aft direction A2 away from the dash panel 90 and can move toward the dash panel 90.

[0055] The vehicle theft prevention system 10 is made up of the above-mentioned shielding member 45, malfunction prevention mechanisms 80, 82, locking mechanisms 81, 83, seat support pins 32, 33, 34, 35, seat support plate 36, washer 37 and fixing elements, lock sleeve 91, retaining member 92, etc.

[0056] The vehicle anti-theft system 10 is not a general-purpose part that is pre-installed in the vehicle 11, but is a dedicated system installed in this embodiment. That is, after the front seat 14 of the completed vehicle 11 is removed from the first slider 30 and the second slider 31, the seat support plate 36, seat support pins 32, 33, 34, 35, washer 37, fixing element, and shielding member 45 are attached to the first slider 30 and the second slider 31, and then the front seat 14 is fixed to the seat support plate 36.

[0057] (When the vehicle anti-theft system is not in use) When the occupant 16 is not using the vehicle anti-theft system 10, the vehicle anti-theft system 10 is maintained in an unused state as shown in FIGS. 1A, 2, 4A, and 5. When the vehicle anti-theft system 10 is in an unused state, the shielding member 45 is maintained in an unused position. The unused position of the shielding member 45 is a position where the shielding member 45 has been moved to the rearmost position relative to the first slider 30 and the second slider 31 in the front-rear direction A2 and is stopped. Therefore, if a force is generated that tends to move the shielding member 45 rearward relative to the first slider 30 and the second slider 31, the front panel 50 will come into contact with the front end of the seat portion 17, thereby preventing the shielding member 45 from moving rearward relative to the first slider 30 and the second slider 31.

[0058] Furthermore, when the vehicle anti-theft system 10 is not in use, the malfunction prevention mechanisms 80, 82 are held in the locked state shown in FIG. 4(A). When the malfunction prevention mechanism 80 is in the locked state, the lock pin 80B is located rearward of the seat support pin 32 and is held in the locked position. When the malfunction prevention mechanism 82 is in the locked state, the lock pin 82B is located rearward of the seat support pin 34 and is held in the locked position. Therefore, when a force is generated that tends to move the shielding member 45 forward relative to the first slider 30 and the second slider 31, the lock pin 80B engages with the seat support pin 32 and the lock pin 82B engages with the seat support pin 34. Therefore, the shielding member 45 is prevented from moving forward relative to the first slider 30 and the second slider 31.

[0059] Furthermore, when the shielding member 45 is stopped in the unused position, a portion of the front-rear adjustment lever 38 is exposed forward through the opening 52. Also, the retaining member 92 is separated from the front-rear adjustment lever 38. Therefore, the occupant 16 can manually apply an operating force to the front-rear adjustment lever 38 to move it counterclockwise a predetermined angle around the support shaft 39, thereby releasing the seat lock mechanism. Therefore, by applying an operating force to the front seat 14, the first slider 30 can be moved along the first rail 22, and the second slider 31 can be moved along the second rail 25. In other words, the occupant 16 can operate the front seat 14 in the front-rear direction A2 and adjust the position of the front seat 14 in the front-rear direction A2.

[0060] When the vehicle anti-theft system 10 is not in use, as shown in Figures 1(A) and 4(A), the shielding member 45 is separated from the dash panel 90. In other words, the pedal arrangement space 93 is open. Therefore, the occupant 16 can operate the accelerator pedal 94, brake pedal 95, and parking brake pedal 97 with their feet 61 while sitting in the front seat 14. Therefore, the occupant 16 can drive, stop, and park the vehicle 11 as they wish.

[0061] Furthermore, when the shielding member 45 is held in the unused position, the shielding member 45 is stopped at a position where it is moved furthest rearward relative to the first slider 30 and the second slider 31 in the front-rear direction A2. The front panel 50 and the skirt panel 49 are substantially vertical and are located at the same position as the front end of the seat portion 17 in the front-rear direction A2. Furthermore, the top panel 46 and the side panels 47, 48 are located below the seat portion 17. In other words, when the shielding member 45 is stopped in the unused position, the shielding member 45 is configured so that the arrangement area of ​​the shielding member 45 overlaps with the arrangement area of ​​the front seat 14 in a plan view of the front seat 14 seen from directly above, as shown in Figures 4(A) and 5. Therefore, the shielding member 45 does not get in the way of the feet 61 of the occupant 16.

[0062] (When using a vehicle anti-theft system) When the occupant 16 uses the vehicle anti-theft system 10, the vehicle anti-theft system 10 is held in the use state shown in Figures 1(B), 3, and 4(B). When the vehicle anti-theft system 10 is in use, the shielding member 45 is held in the use position. The use position of the shielding member 45 is the position at which the shielding member 45 has moved furthest forward relative to the first slider 30 and the second slider 31 in the front-rear direction A2 and has stopped.

[0063] The occupant 16 performs the following operations to move the shielding member 45 from the unused position to the used position. First, the occupant 16 uses a key to switch the malfunction prevention mechanisms 80 and 82 from their locked states to their unlocked states. The occupant 16 also switches the locking mechanisms 81 and 83 to their unlocked states. Then, the occupant 16 moves the shielding member 45 forward relative to the first slider 30 and the second slider 31.

[0064] In the process of moving the shielding member 45 forward relative to the first slider 30 and the second slider 31, the lock pin 81B is not engaged with the seat support pin 33, and the lock pin 83B is not engaged with the seat support pin 35. When the shielding member 45 reaches the use position, the shielding member 45 is stopped. The use position of the shielding member 45 is the position where the front plate 50 contacts the dash panel 90. When the shielding member 45 is stopped at the use position, the entrance to the pedal arrangement space 93 is covered by the shielding member 45.

[0065] After the shielding member 45 is stopped in the use position, the occupant 16 uses the key to switch the locking mechanisms 81, 83 from the unlocked state to the locked state. Then, the locking pin 81B is stopped in front of the seat support pin 33, and the locking pin 83B is stopped in front of the seat support pin 35. Therefore, even if a thief 60 attempting to steal the vehicle 11 tries to operate the shielding member 45 rearward relative to the first slider 30 and the second slider 31, the locking pin 81B is engaged with the seat support pin 33, and the locking pin 83B is engaged with the seat support pin 35.

[0066] Therefore, the shielding member 45 is prevented from moving rearward relative to the first slider 30 and the second slider 31, and the shielding member 45 is fixed in a use state in which it covers the entrance to the pedal arrangement space 93. Specifically, the front plate 50 and the skirt plate 49 are pressed against the dash panel 90, and the front ends of the side plates 47, 48 are pressed against the dash panel 90.

[0067] Therefore, even if the virtual person 60 sits in the front seat 14, he or she cannot use the foot 60A to operate the accelerator pedal 94, the brake pedal 95, or the parking brake pedal 97. Therefore, the vehicle theft prevention system 10 can prevent the virtual person 60 from stealing the vehicle 11.

[0068] Furthermore, when the shielding member 45 is fixed in the use position, the lower end 92A of the retaining member 92 is pressed onto the front-rear adjustment lever 38, as shown in Figure 3. Therefore, when the phantom person 60 inserts his / her hand into the opening 52 to attempt to operate the front-rear adjustment lever 38, the retaining member 92 prevents the front-rear adjustment lever 38 from rotating counterclockwise around the support shaft 39 in Figure 3. In other words, the seat lock mechanism is not released, and the phantom person 60 cannot move the front seat 14, the first slider 30, and the second slider 31 rearward. Therefore, the function of preventing the shielding member 45 from being moved rearward is improved, and the reliability of the vehicle anti-theft system 10 is enhanced.

[0069] Furthermore, after stopping the shielding member 45 in the use position, the occupant 16 can operate the locking mechanism 84 to engage the locking pin 84B with the locking sleeve 91, thereby switching the locking mechanism 84 from the unlocked state to the locked state. When the locking mechanism 84 is in the locked state, the force that prevents the shielding member 45 from being operated rearward is increased. Therefore, the function of preventing the shielding member 45 from being operated rearward by the occupant 60 is improved. In other words, the reliability of the vehicle anti-theft system 10 is improved.

[0070] (Explanation of the reclining mechanism) The front seat 14 is equipped with a reclining mechanism 100 as shown in Figures 9(A), (B) and 10(A), (B). The reclining mechanism 100 is a mechanism for adjusting the tilt angle θ1 of the backrest 18 relative to the seat portion 17 in a side view of the front seat 14 shown in Figure 9(A). The tilt angle θ1 can be defined, for example, as the smaller of the two angles formed between an imaginary line B1 passing through the center of the hinge shaft 20 and a center line B2 in the thickness direction of the backrest 18. The thickness of the backrest 18 is the dimension of the backrest 18 in the direction from the front to the back.

[0071] The reclining mechanism 100 has two base plates 73, two arm plates 74, two hinge shafts 20, and a lever 101. The two base plates 73, the two arm plates 74, and the two hinge shafts 20 are all made of metal. As shown in FIG. 5, the two base plates 73 include base plates 73A and 73B. The base plates 73A and 73B are fixed to the seat frame of the front seat 14. The base plates 73A and 73B are spaced apart in the width direction A1.

[0072] Stoppers 102 and 103 are provided on the base plate 73A. When the front seat 14 is viewed from the side, a portion of the arm plate 74A is disposed between the stoppers 102 and 103. The stopper 102 is an element that determines the limit of operation when the backrest 18 is operated forward, that is, toward the seat portion 17. By coming into contact with the edge of the arm plate 74A, the stopper 102 determines the limit position at which the arm plate 74A shown in FIGS. 9(A) and (B) can be operated clockwise around the hinge shaft 20, and also determines the limit position at which the arm plate 74B shown in FIGS. 10(A) and (B) can be operated counterclockwise around the hinge shaft 20.

[0073] The stopper 103 is an element that determines the limit of movement of the backrest 18 when it is moved rearward, i.e., away from the seat 17. The stopper 103 comes into contact with the edge of the arm plate 74A, thereby determining the limit position at which the arm plate 74A shown in Figures 9(A) and (B) is moved counterclockwise around the hinge shaft 20, and also determining the limit position at which the arm plate 74B shown in Figures 10(A) and (B) is moved clockwise around the hinge shaft 20.

[0074] The lever 101 is attached to the base plate 73A via a support shaft 104. The lever 101 is made of, for example, metal and can be operated within a predetermined angular range around the support shaft 104. The lever 101 is manually operated by the occupant 16. The lever 101 is biased by a metal spring 105 in a direction to rotate clockwise around the support shaft 104. The lever 101 is provided with an engagement portion 106 composed of a plurality of projections and recesses. The engagement portion 106 is provided in an arc shape.

[0075] Arm plate 74A is provided with an engagement portion 107. Engagement portion 107 is composed of a plurality of projections and recesses. Depending on the state of lever 101, engagement portion 106 and engagement portion 107 are engaged or disengaged. In addition, the two arm plates 74 are biased by a coil spring (not shown) so as to move forward around hinge shaft 20.

[0076] An example of the operation of reclining mechanism 100 is as follows: When occupant 16 releases the operating force on lever 101, lever 101 is pushed by the biasing force of spring 105, and engaging portions 106 and 107 are engaged. As a result, backrest 18 is stopped at a predetermined position centered on hinge shaft 20 against the biasing force of the coil spring.

[0077] When the occupant 16 adjusts the tilt angle θ1 of the backrest 18, the occupant 16 applies an operating force to the lever 101 shown in FIGS. 9(A) and 9(B) to move the lever 101 counterclockwise around the support shaft 104 against the biasing force of the spring 105. This disengages the engaging portions 106 and 107. This allows the occupant 16 to move the backrest 18 forward or backward around the hinge shaft 20. Note that when moving the backrest 18 backward around the hinge shaft 20, this is done against the biasing force of the coil spring. When the occupant 16 releases the operating force on the lever 101, the lever 101 is pushed by the biasing force of the spring 105, and the engaging portions 106 and 107 engage with each other, stopping the backrest 18 at a predetermined position.

[0078] (Backrest locking mechanism explanation) 11 and 12 show the backrest locking mechanism 130. The backrest locking mechanism 130 is provided to lock the backrest 18 in a position where it is tilted forward to its most forward position when the shielding member 45 is stopped in the use state. The backrest locking mechanism 130 has a fixing member 110, a connecting member 111, a pulley 112, a wire 113, lock shafts 114 and 115, and a spring 117. The fixing member 110 is, for example, a metal plate, and both ends of the fixing member 110 are connected to the first slider 30 and the second slider 31. In other words, when the front seat 14 is viewed from above, the fixing member 110 is disposed between the two base plates 73 in the width direction A1.

[0079] The pulley 112 is attached to the fixed member 110 and is rotatable about a vertical centerline. The pulley 112 is biased clockwise by a spring 117 in a plan view of the front seat 14 and is stopped at an initial position. A first end of a wire 113 is wound around the pulley 112. A second end of the wire 113 is connected to the connecting member 111. The wire 113 is made of, for example, metal. A guide hole 118 is provided that penetrates the upper plate 46 in the thickness direction. The guide hole 118 is arranged along the front-rear direction A2.

[0080] The connecting member 111 is inserted into the guide hole 118. The connecting member 111 is movable in the front-rear direction A2 within the guide hole 118, and is configured not to come out of the guide hole 118. When the shielding member 45 is actuated forward, the connecting member 111 engages with the upper plate 46 of the shielding member 45, and the connecting member 111 moves forward together with the shielding member 45. When the connecting member 111 moves forward, the pulley 112 around which the wire 113 is wound is rotated counterclockwise in FIG. 11 against the biasing force of the spring 117.

[0081] The lock shafts 114 and 115 are connected to the pulley 112. When the pulley 112 is rotated, the lock shafts 114 and 115 are configured to move along the width direction A1. In this embodiment, when the pulley 112 is rotated clockwise in FIG. 11, the lock shafts 114 and 115 are configured to move along the width direction A1 and move toward each other. When the pulley 112 is rotated counterclockwise in FIG. 11, the lock shafts 114 and 115 are configured to move along the width direction A1 and move away from each other.

[0082] Each of the two base plates 73 has a shaft hole 119. The shaft hole 119 penetrates the base plate 73 along the width direction A1. Each of the two arm plates 74 has a shaft hole 120. The shaft hole 120 penetrates the arm plate 74 along the width direction A1. As shown in Figures 9(A) and (B), the shaft holes 119, 120 are arranged on the same circumference with the hinge shaft 20 as the center.

[0083] An example of the operation of the backrest locking mechanism 130 is as follows: When the shielding member 45 is stopped in the unused position as shown in Figure 11, the pulley 112 is biased clockwise by the spring 117 and is stopped in the initial position. When the pulley 112 is stopped in the initial position, the locking shaft 114 is separated from the arm plate 74A, and the locking shaft 115 is separated from the arm plate 74B.

[0084] Therefore, even if the tilt angle θ1 of the backrest 18 is changed and the shaft holes 120 and 119 of the arm plate 74A are stopped at the same position in the circumferential direction centered on the hinge shaft 20, the lock shaft 114 does not enter the shaft hole 120 of the arm plate 74A. Also, even if the shaft holes 120 and 119 of the arm plate 74B are stopped at the same position in the circumferential direction centered on the hinge shaft 20, the lock shaft 115 does not enter the shaft hole 120 of the arm plate 74B. Therefore, the occupant 16 can arbitrarily adjust the tilt angle θ1 of the backrest 18 by operating the lever 101.

[0085] Next, an example will be described in which the occupant 16 moves the shielding member 45 from the unused position to the used position and stops it. When the shielding member 45 is moved forward from the unused position, the upper plate 46 engages with the connecting member 111, and the shielding member 45 and the connecting member 111 are moved forward together. When the connecting member 111 is moved forward, the wire 113 connected to the connecting member 111 is pulled, causing the pulley 112 to rotate counterclockwise in FIG. 11. Then, the lock shaft 114 is operated in a direction approaching the arm plate 74A, and the lock shaft 115 is operated in a direction approaching the arm plate 74B.

[0086] When the shielding member 45 is stopped at the use position, the connecting member 111 is also stopped, the pulley 112 is also stopped, and the locking shafts 114 and 115 are also stopped. Here, if the backrest 18 is stopped at a position other than the limit position where it is closest to the seat 17, the locking shaft 114 does not enter the shaft hole 120 of the arm plate 74A because the shaft hole 120 and the shaft hole 119 of the arm plate 74A are stopped at different positions in the circumferential direction centered on the hinge shaft 20. Also, the shaft hole 120 and the shaft hole 119 of the arm plate 74B are stopped at different but the same positions in the circumferential direction centered on the hinge shaft 20, so the locking shaft 115 does not enter the shaft hole 120 of the arm plate 74B.

[0087] Next, an example will be described in which the occupant 16 moves the backrest 18 to the limit position closest to the seat 17, stops the backrest 18, and then moves the shielding member 45 from the unused position to the used position. When the backrest 18 stops at the limit position, the shaft holes 120 and 119 of the arm plate 74A stop at the same position in the circumferential direction about the hinge shaft 20. Also, the shaft holes 120 and 119 of the arm plate 74B stop at the same position in the circumferential direction about the hinge shaft 20.

[0088] Therefore, when the shielding member 45 is moved from the unused position to the used position and the locking shafts 114, 115 move in directions away from each other, the locking shaft 114 enters the shaft hole 119 and the shaft hole 120 of the arm plate 74A. In addition, the shaft hole 120 of the arm plate 74B and the shaft hole 119 are stopped at different but identical positions in the circumferential direction around the hinge shaft 20, so the locking shaft 115 enters the shaft hole 119 and the shaft hole 120 of the arm plate 74B. Therefore, the backrest 18 is fixed at the limit position where it is tilted most forward, making it difficult for the occupant 60 to sit in the front seat 14.

[0089] When the occupant 16 operates the shielding member 45 to return it from the use position to the non-use position, the biasing force of the spring 117 rotates the pulley 112 clockwise in FIG. 12, and the pulley 112 returns to its initial position and stops. When the pulley 112 rotates clockwise in FIG. 12, the lock shafts 114 and 115 move toward each other and stop as shown in FIG. 11. As a result, the lock shaft 114 retracts from the shaft hole 120 of the arm plate 74A, and the lock shaft 115 retracts from the shaft hole 120 of the arm plate 74B. This allows the occupant 16 to change the tilt angle θ1 of the backrest 18 as desired in the reclining mechanism 100.

[0090] (Other explanations) This embodiment is not limited to what is disclosed using the drawings, and various modifications are possible without departing from the spirit of the present invention. For example, it is possible to provide a pinion gear on the outer circumferential surface of the pulley 112, and to provide racks on the lock shafts 114 and 115, respectively. Then, a rack-and-pinion mechanism can be configured by engaging the pinion gear of the pulley 112 with the racks provided on the lock shafts 114 and 115, respectively. Then, the rotational force of the pulley 112 is converted into the operating force of the lock shafts 114 and 115.

[0091] Furthermore, it is effective to provide a vibration sensor or the like under the front seat 14 so that, when the vibration sensor detects vibration of the front seat 14, it controls the generation of an alarm sound or notifies the terminal of the owner of the vehicle 11. Furthermore, the vehicle anti-theft system 10 may also include an actuator that automatically moves and stops the shielding member 45 in the fore-and-aft direction A2. The actuator may be provided, for example, on the seat support frame 15. The actuator may include, for example, an electric motor, a hydraulic cylinder, a pneumatic cylinder, etc. Furthermore, the shape, structure, dimensions, and other specifications of the components constituting the vehicle anti-theft system 10 can be freely changed depending on the shape, structure, etc. of the front seat of the vehicle to be installed. The front seat 14, the vehicle anti-theft system 10, the reclining mechanism 100, and the backrest lock mechanism 130 can also be collectively defined as a seat device.

[0092] An example of the technical meaning disclosed in this embodiment is as follows: The front seat 14 is an example of a seat. The seat support frame 15 is an example of a seat support frame. The shielding member 45 is an example of a shielding member. The vehicle 11 is an example of a vehicle. The fore-aft direction A2 is an example of the fore-aft direction, and the first slider 30, the second slider 31, the brackets 40, 41, and the support plate 42 are an example of a slide mechanism. The pedal arrangement space 93 is an example of a pedal arrangement space. The unused position of the shielding member 45 is an example of a first position. The seat support pins 32, 34, the malfunction prevention mechanisms 80, 82, and the guide hole 51 are an example of a first lock mechanism.

[0093] The use position of the shielding member 45 is an example of a second position. The seat support pins 32, 34 and the guide hole 51, and the locking mechanisms 81, 83 are an example of a second locking mechanism. The vehicle anti-theft system 10 is an example of a vehicle anti-theft system. The first rail 22 and the second rail 25 are an example of a seat slide mechanism. The front-rear adjustment lever 38 is an example of an operating member. A state in which the front-rear adjustment lever 38 is in contact with the pressing member 92 is an example of a locked state as an operating state of the operating member. A state in which the front-rear adjustment lever 38 is away from the pressing member 92 is an example of an unlocked state as an operating state of the operating member. The pressing member 92 is an example of a retaining member.

[0094] 4(A) and 5 are examples of plan views of the seat seen from directly above. Seat portion 17 is an example of a seat portion. Backrest 18 is an example of a backrest. Tilt angle θ1 is an example of a tilt angle. Reclining mechanism 100 is an example of a reclining mechanism. Backrest locking mechanism 130 is an example of a backrest locking mechanism. [Industrial Applicability]

[0095] The present disclosure can be used as a vehicle theft prevention system that is installed inside a vehicle to prevent theft of the vehicle. [Explanation of symbols]

[0096] 10...vehicle anti-theft system, 11...vehicle, 14...front seat, 15...seat support frame, 17...seat portion, 18...backrest, 30...first slider, 31...second slider, 32, 34...seat support pin, 38...front / rear adjustment lever, 40, 41...bracket, 42...support plate, 45...shielding member, 51...guide hole, 80, 82...malfunction prevention mechanism, 81, 83...lock mechanism, 92...retaining member, 93...pedal arrangement space, 100...reclining mechanism, 130...backrest lock mechanism, A2...front / rear direction, θ1...tilt angle

Claims

1. a shielding member supported by a seat support frame on which a seat on which an occupant sits is placed; a slide mechanism that allows the shielding member to move in the front-rear direction of the vehicle relative to the seat support frame; a first locking mechanism that fixes the shielding member in a stopped state in the front-rear direction at a first position that opens a pedal arrangement space in a passenger compartment of the vehicle; a second locking mechanism that fixes the shielding member in a stopped state at a second position that is forward of the first position in the front-rear direction and closes the pedal arrangement space; A vehicle theft prevention system.

2. 2. The vehicle theft prevention system according to claim 1, a seat slide mechanism that allows the seat to move in the front-rear direction relative to the seat support frame; an operating member for adjusting a position of the seat in the front-rear direction relative to the seat support frame; is further provided, The operation state of the operation member is a locked state in which the seat is prevented from moving in the front-rear direction relative to the seat support frame; an unlocked state in which the seat is allowed to move in the front-rear direction relative to the seat support frame; Including, the shielding member is provided with a holding member that holds the operating member in the locked state, The holding member is configured to hold the operating member in the locked state when the shielding member is stopped at the second position.

3. 2. The vehicle theft prevention system according to claim 1, A vehicle theft prevention system, wherein the shielding member is configured so that when the shielding member is stopped at the first position, the placement area of ​​the shielding member overlaps with the placement area of ​​the seat in a plan view seen from directly above the seat.

4. 2. The vehicle theft prevention system according to claim 1, The sheet is a seat and a backrest; a reclining mechanism for changing the angle of inclination of the backrest relative to the seat; and a backrest locking mechanism for fixing the tilt angle of the backrest adjusted by the reclining mechanism; The backrest locking mechanism is configured to prevent the reclining mechanism from changing the angle of inclination of the backrest relative to the seat when the shielding member is stopped in the second position.

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