JP2010054381A - Durability testing apparatus for vehicle seat and seat attachment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a durability testing apparatus for a vehicle seat and a seat attachment, which can attain automatic durability test of a movable part of the vehicle seat without depending on manual operation of an operator, save energy, shorten test time and obtain appropriate test results. <P>SOLUTION: The durability testing apparatus for the vehicle seat and the seat attachment for testing durability of the movable part and its associated part of the vehicle seat has an unlocking mechanism 21 for releasing the seat 61 from a locked state. A mechanism 22 for raising and falling is provided for repetitively transiting the seat 61 to a rising state and a falling state while the seat is unlocked. Unlocking the seat 61 by the unlocking mechanism 21 and raising/falling the seat 61 by the mechanism 22 are repeated to test the durability of the seat 61. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to an endurance test apparatus for a vehicle seat and a seat mounting portion for testing the durability of a movable portion of a vehicle seat and related portions thereof in a manufacturing process of a vehicle such as an automobile.

  Conventionally, in a vehicle such as an automobile, for example, when performing an endurance test on a movable part of an auxiliary seat disposed at a rear part of a vehicle interior and a part related to the movable part, the following method has been adopted. . That is, as shown by a solid line in FIG. 10A, in a state where the seat 61 is assembled on the underbody 60 of the vehicle, the backrest portion 61b is folded on the seat portion 61a of the seat 61. Next, the release lever 62 on the lower side of the seat 61 is manually operated to release the seat 61 from a locked state by a lock mechanism (not shown). Subsequently, as shown in FIG. 10 (b), the seat 61a and the backrest 61b of the seat 61 are manually raised from a lying state to a vehicle interior side centering on a hinge (not shown). Rotate. Thereafter, the seat 61a and the backrest 61b of the seat 61 are manually rotated around the hinge from the standing state shown by the solid line to the lying state shown by the chain line in FIG. To lock in its lying state.

  Then, by repeating the unlocking operation of the seat 61 and the raising / lowering operation between the lying state and the standing state of the seat 61, for example, several thousand times, the movable portion such as the hinge of the seat 61, the lock Tests were conducted to confirm whether or not there was a problem with the mechanism and related parts.

  However, in this conventional vehicle seat durability test method, as described above, the unlocking operation of the seat 61 and the raising / lowering operation of the seat 61 are repeated manually many times by the operator. However, there is a problem that it is troublesome and requires a lot of labor and work time. In addition, as the work progresses, the operator's fatigue increases, and the operation speed of the seat 61, such as the undulation operation, gradually decreases, and the operation speed and the applied force vary depending on the individual operator in charge of the test. There is also a problem that it is difficult to obtain an appropriate test result because of the difference.

On the other hand, as a load load test method for applying a load load to a specimen and performing a load test, for example, a method as disclosed in Patent Document 1 has been proposed. In this conventional method, a control waveform is input to a driving device, and a load is applied to the specimen with a target waveform by the driving device. As a result, it is said that a load can be appropriately applied to the specimen with a target waveform without repeatedly vibrating the specimen.
Japanese Patent Laid-Open No. 2002-62230

  As described above, since the conventional method described in Patent Document 1 relates to a load test method for a specimen, the conventional method is applied to a durability test of a movable part of a sheet and a part related to the movable part. I can't do it.

  The present invention has been made paying attention to such problems existing in the prior art. An object of the present invention is to provide a vehicle seat and a seat mounting portion durability test apparatus that can automatically perform a vehicle seat durability test without manual operation by an operator.

  In order to achieve the above object, in the present invention, in a durability test apparatus for a vehicle seat and a seat mounting portion for testing the durability of a movable portion of a vehicle seat and related parts thereof, It is characterized by comprising unlocking means for releasing from the locked state, and raising / lowering giving means for repeatedly moving the seat between the standing state and the lying state. Here, the seat attaching portion includes a seat attaching hinge and its peripheral mechanism.

  Therefore, in the vehicle seat and seat mounting portion durability test apparatus according to the present invention, the unlocking operation of the seat by the unlocking means and the raising and lowering operation between the standing state and the lying state of the seat by the raising and lowering imparting means are performed. Repeated many times, the sheet durability test is automatically performed. Therefore, it is not necessary for the operator to repeatedly perform the unlocking operation and the undulating operation of the seat many times manually, thereby saving labor and reducing the time required for the durability test.

  In addition, since the unlocking operation and the raising / lowering operation of the seat are automatically performed, the operator's fatigue increases with the progress of the work as in the case where the worker performs the manual operation, and the raising / lowering operation of the seat is performed. There is no possibility that the operation speed will gradually decrease, or that the operation speed will change due to individual differences among workers in charge of testing. Therefore, it is possible to suppress the occurrence of variations in the results of the durability test, and to obtain appropriate test results.

  In the above-described configuration, the unlocking means may include an unlocking piece operated by a release driving means, and the position of the unlocking piece may be adjustable. When configured in this way, even if the position of the unlocking part such as the release lever on the seat side differs depending on the type of vehicle for which the durability test is performed or the seat to be tested, it corresponds to the unlocking part. Thus, the position of the unlocking piece can be easily adjusted.

  Further, in the above configuration, the hoisting motion imparting means includes a turning member that is turned in a vertical plane by the hoisting drive means, and the turning member is provided with a connecting portion that is connected to the seat, and the turning member is turned. It is preferable that the sheet is moved up and down through the connecting portion. When configured in this manner, the seat is smoothly raised and lowered between the standing state and the lying state by the turning of the turning member in the vertical plane in substantially the same manner as the movement of the arm manually performed by the operator. be able to.

  Furthermore, the said structure WHEREIN: The said undulation motion provision means is good to provide the height position adjustment mechanism for adjusting the height of the said connection part. In such a configuration, the height of the connecting portion connected to the seat is set to the height of the seat even when the seat height position is different due to the change in the type of vehicle to be subjected to the durability test or the seat to be tested. It can be adjusted and set appropriately according to the position.

  Furthermore, the said structure WHEREIN: The said raising / lowering motion provision means is good to provide the turning range adjustment mechanism for adjusting the turning range of the said connection part. When configured in this way, even if the undulation angle etc. between the standing state and the lying down state of the seat differs due to the change of the vehicle type or the test subject seat, the turning range of the connecting portion is set to the undulation angle of the seat, etc. Can be adjusted accordingly.

  Furthermore, the said structure WHEREIN: The said raising / lowering motion provision means is good to provide the horizontal position adjustment mechanism for adjusting the position of the horizontal direction of the said connection part. When configured in this way, the horizontal position of the connecting part connected to the seat is adjusted appropriately according to the width of the seat, even if the seat width varies due to changes in the vehicle model or the test subject seat. can do.

  Moreover, in another invention different from the above, in the durability test apparatus for a vehicle seat and a seat mounting portion for testing the durability of a movable portion of a vehicle seat and its related portion, the first frame has a first At the tip of the piston rod of the first cylinder, a lock releasing piece that can be engaged with the unlocking portion of the seat is provided, and the seat is released from the locked state by the operation of the first cylinder. And a position adjusting portion for adjusting the position of the unlocking piece is provided between the first frame and the first cylinder, and the swivel arm is swiveled in a vertical plane on the second frame. The piston rod of the second cylinder is connected to the first end of the swivel arm, and a connecting portion connected to the seat is provided at the second end of the swivel arm. The vehicle seat is configured to move up and down between the standing state and the overturned state via the connecting portion by the operation of the second cylinder, and the second frame and the connecting portion are connected to each other. It is characterized in that a height adjusting part for adjusting the height of the part is provided.

  Therefore, in the vehicle seat and seat mounting portion durability test apparatus according to the present invention, when the unlocking piece is operated in the first cylinder, the unlocking piece is engaged with the unlocking portion of the seat, The seat is released from the locked state. Further, in the unlocked state of the seat, the swing arm is swung by the second cylinder, whereby the seat is raised and lowered between the standing state and the lying state via the connecting portion. Then, the seat endurance test is automatically performed by repeatedly performing the unlocking operation and the undulating operation of the seat many times. Therefore, labor can be saved and the test time can be shortened as compared with the conventional method in which the operator performs this repetitive operation manually. In addition, since repeated operations are performed automatically, there is no risk that the operation speed will decrease due to the accumulation of worker fatigue, or that the operation speed will change due to individual differences among workers in charge, and appropriate test results will be obtained. be able to.

  Furthermore, since the position of the unlocking piece can be adjusted, even if the position of the unlocking part on the seat side varies depending on the type of vehicle for which the durability test is performed or the seat under test, it corresponds to the unlocking part. Thus, the position of the unlocking piece can be easily adjusted. In addition, since the swivel arm is configured to swivel in the vertical plane, the swivel arm can smoothly raise and lower the seat in substantially the same manner as the movement of the arm manually by the operator. it can. In addition, since the height of the connecting part connected to the seat can be adjusted, the height of the connecting part can be adjusted even if the height position of the seat differs due to changes in the vehicle type or the seat under test. It can be easily adjusted according to the height position.

  Further, in the above-described configuration, the height adjusting portion is guided by the second frame so as to extend in the vertical direction, and is guided by the guide portion so as to be movable up and down, and supports the swivel arm so as to be able to swivel. It is good to provide the raising / lowering body to perform and the operation part for fixing the raising / lowering body to the vertical position while moving and adjusting the raising / lowering body. When configured in this way, the pivoting center position of the swing arm is changed by moving the lifting body in the up-and-down direction at the operation unit and fixing it to a predetermined position, and the connecting portion on the swing arm is changed. Height is adjusted. Therefore, the height of the connecting portion can be appropriately adjusted by operating the operation portion.

  Furthermore, in the said structure, between the 1st end part of the said turning arm and the piston rod of a 2nd cylinder, for adjusting the connection position of the piston rod with respect to a 1st end part in the length direction of a turning arm An adjustment unit may be provided. In such a configuration, the turning angle of the turning arm is changed by adjusting the connection position of the piston rod with respect to the first end of the turning arm, and the turning range of the connecting portion on the turning arm is adjusted. be able to. Therefore, even if the undulation angle etc. between the standing state and the lying down state of the seat differs with the change of the vehicle type or the test subject seat, the turning range of the connecting portion is appropriately set according to the undulation angle of the seat, etc. Can be adjusted.

  Further, in the above configuration, a bar extending in the horizontal direction is provided at the second end portion of the swivel arm, the connecting portion is provided at the bar, and the bar is provided between the bar and the second end portion. An adjustment part for adjusting the position in the length direction of the swivel arm may be provided, and an adjustment part for adjusting the position of the connection part in the length direction of the bar may be provided between the bar and the connection part. When configured in this way, the horizontal position of the connecting portion and the turning range are adjusted by adjusting the mounting position of the bar with respect to the second end of the swivel arm and adjusting the mounting position of the connecting portion with respect to the bar. Can be changed. Therefore, even when the lateral width of the seat varies with changes in the vehicle type or the seat to be tested, the horizontal position and turning range of the connecting portion can be adjusted according to the lateral width of the seat.

  As described above, according to the present invention, the durability test of the vehicle seat can be automatically performed without the manual operation of the operator, thereby saving labor, shortening the test time, and optimizing the test result. The effect that can be aimed at is exhibited.

  Below, one Embodiment of this invention is described based on FIGS. In this embodiment, for convenience of explanation, as shown in FIG. 10, in the auxiliary seat arranged at the rear part of the vehicle interior, the seat portion is folded in a state where the backrest portion 61b is folded on the seat portion 61a of the seat 61. The case where the endurance test is performed by repeatedly raising and lowering 61a and the backrest 61b will be described.

  As shown in FIG. 1, the vehicle seat and seat mounting portion durability test apparatus of this embodiment is equipped with a lock release mechanism 21 as a lock release means and a undulation action imparting mechanism 22 as a undulation action imparting means. Has been. The lock release mechanism 21 is installed corresponding to a lock release lever 62 as a lock release portion provided on the lower side portion of the sheet 61 to be tested, and by operating the lock release lever 62, the lock of the sheet 61 is locked. The mechanism (not shown) is released from the locked state. The raising / lowering imparting mechanism 22 is installed on the seat 61a corresponding to the seat 61 with the backrest 61b folded, and repeatedly raises / lowers the seat 61 between the standing state and the lying down state in the unlocked state. Then, by performing the unlocking operation of the seat 61 and the raising / lowering operation of the seat 61 many times, for example, several thousand times, the mounting portion including the seat 61 as the movable portion and the hinge 63 as the related portion. An endurance test is performed to check whether or not there is a problem with the device.

The lock release mechanism 21 will be described in detail.
As shown in FIGS. 2 and 3, in the vicinity of the side portion of the seat 61 assembled on the underbody 60 of the vehicle, the front plate is substantially L-shaped on the surface plate B installed on the floor surface of the work place. The first frame 25 is attached by a plurality of bolts 26 so that the position of the first frame 25 can be adjusted in the direction of approaching and separating from the seat 61. A support plate 27 is attached to the side surface of the first frame 25 in an inclined state by a pair of clamps 28 such as a giant clam vise so that the attachment height position and the attachment angle can be adjusted. The underbody 60 is a cut part obtained by cutting out only a portion that supports the sheet 61.

  On the upper end side surface of the support plate 27, a lock release piece 29 is supported so as to be movable in the longitudinal direction along a guide rail 27a on the support plate 27. The unlocking piece 29 includes a flat plate portion 29a guided by the guide rail 27a and a rod-like engagement portion 29b protruding above the flat plate portion 29a. An extension pipe 62a is fitted to the tip of an unlocking lever 62 as an unlocking part provided on the lower side of the seat 61, and an engaging part 29b of the unlocking piece 29 is engaged with the extension pipe 62a. Corresponding arrangement is possible.

  A first cylinder 30 serving as a release driving means comprising an air cylinder is attached to the lower end side surface of the support plate 27, and a flat plate portion 29 a of the unlocking piece 29 is provided at the tip of the piston rod 30 a of the first cylinder 30. It is connected. Then, when the unlocking piece 29 is moved to the left in FIGS. 2 and 3 by the retraction operation of the first cylinder 30, the unlocking lever 62 on the seat 61 side is actuated via the extension pipe 62a, The seat 61 is released from the locked state at the lying down position.

  In the first embodiment, the support plate 27 constitutes a position adjusting unit between the first frame 25 and the first cylinder 30. Then, by changing the mounting height position and the mounting angle of the support plate 27 with respect to the first frame 25, the position of the lock release piece 29 is adjusted, and the engaging portion 29b of the lock release piece 29 is changed to a different type of seat. Even so, the extension pipe 62a on the lock release lever 62 on the seat 61 side can be correspondingly arranged.

Next, the undulation motion imparting mechanism 22 will be described in detail.
As shown in FIGS. 1, 4, and 5, in the vicinity of the rear side of the seat 61 assembled on the underbody 60 of the vehicle, a square frame-shaped first is formed on the base 33 made of the floor of the work place or the like. Two frames 34 are installed. A guide rail 34a as a pair of guide portions is provided at the center of the front surface of the second frame 34 so as to extend in parallel in the vertical direction. An elevating body 35 is supported on the front surface of the second frame 34 so as to be elevable along the guide rail 34a.

  A screw shaft 36 is supported in the second frame 34 so as to be rotatable on an axis extending in the vertical direction. A nut 37 that is screwed onto the screw shaft 36 is provided at the rear portion of the elevating body 35. A bearing portion 38 projects from the rear surface of the second frame 34, and an operation handle 39 as an operation portion is supported on the bearing portion 38 via an operation shaft 40 so as to be rotatable on an axis extending in the front-rear direction. Yes. Bevel gears 41 and 42 that mesh with each other are fixed to the distal end portion of the operation shaft 40 and the upper end portion of the screw shaft 36. A fixing screw 43 is attached to the bearing portion 38 so as to be rotatable. Then, when the screw shaft 36 is rotated by the rotation operation of the operation handle 39, the elevating body 35 is moved and adjusted through the nut 37. In this state, the elevating body 35 is fixed at the movement adjustment position by tightening the fixing screw 43 to restrict the rotation of the operation shaft 40.

  A swivel arm 44 as a swivel member is supported on the front surface of the lift 35 so as to be swivelable in a vertical plane by a support shaft 45 at an intermediate portion in the longitudinal direction. In the vicinity of the side of the second frame 34, a bracket 46 is fixed on the base 33 by a plurality of bolts 47 so that the position of the bracket 46 can be adjusted in the direction of approaching and separating from the second frame 34. A second cylinder 48 as an undulating drive means made of an air cylinder is rotatably supported on the bracket 46 via a support shaft 49, and a piston rod 48 a of the second cylinder 48 is connected to the swivel arm 44 via a connection plate 50. Is connected to the first end 44a. The connection plate 50 is attached to the first end 44 a of the turning arm 44 by a plurality of bolts 51 so that the position of the connecting plate 50 can be adjusted in the length direction of the turning arm 44.

  As shown in FIG. 4, an operating speed adjuster 48b is provided at the base end of the second cylinder. Then, by adjusting the operating speed adjuster 48b, the air flow rate to the second cylinder is changed, and the operating speed of the piston rod 48a, that is, the expansion / contraction speed is adjusted. By this adjustment, the turning speed of the turning arm 44 can be set appropriately.

  A bar 52 extending in the horizontal direction is attached to the second end 44 b of the swivel arm 44 by a plurality of bolts 53 so that the position of the swivel arm 44 can be adjusted in the length direction. A hoisting motion imparting member 54 as a connecting portion for the sheet 61 is attached to the front end portion of the bar 52 by a plurality of bolts 55 so that the position thereof can be adjusted in the length direction of the bar 52. The undulating motion imparting member 54 includes a pressing roller 54 a that can abut against a contact plate 64 that is covered and fixed to the back surface of the backrest portion 61 b of the sheet 61, and a lifting string 54 b that is coupled (bound) to a part of the sheet 61. It consists of and.

  When the swivel arm 44 is swung counterclockwise from the position indicated by the solid line in FIG. 4 by the projecting operation of the second cylinder 48, the pressing roller 54a of the hoisting motion imparting member 54 is moved through the contact plate 64 to the sheet. 6, the seat 61 is rotated from the standing state shown in FIG. 6A to the lying state shown in FIG. In contrast, when the revolving arm 44 is revolved clockwise from the position indicated by the chain line in FIG. 4 by the retraction operation of the second cylinder 48, the seat 61 is lifted via the retraction string 54 b of the hoisting operation applying member 54. Then, the seat 61 is rotated from the lying down state shown in FIG. 6B to the standing state shown in FIG.

  In this embodiment, a height position adjusting mechanism M1 for adjusting the height of the undulating action imparting member 54 is configured by the height adjusting portion including the lifting body 35, the screw shaft 36, the operation handle 39, and the like. Has been. In addition, a turning range adjusting mechanism M2 for adjusting the turning range of the hoisting motion applying member 54 is configured by the position adjusting portion of the connection plate 50 with respect to the first end portion 44a of the turning arm 44. Further, a horizontal position adjusting mechanism M3 for adjusting the horizontal position of the hoisting motion applying member 54 is configured by the position adjusting portion of the hoisting motion applying member 54 with respect to the tip portion of the bar 52.

Next, the operation of the durability test apparatus for a vehicle seat and a seat mounting portion configured as described above will be described.
In this vehicle seat and seat mounting portion durability test apparatus, as shown in FIG. 10, when performing a durability test on the auxiliary seat disposed at the rear of the vehicle interior, as shown in FIG. The backrest 61b of the seat 61 on the body 60 is folded onto the seat 61a. A rigid contact plate 64 such as a metal or a plywood plate is fixed to the back surface of the backrest portion 61b in a covered state. At the same time, an extension pipe 62 a is fitted to the tip of the lock release lever 62 provided on the lower side of the seat 61.

  In this state, as shown in FIG. 1, the lock release mechanism 21 is installed on the surface plate of the floor of the work place corresponding to the lock release lever 62 of the seat 61. In this case, the clamp 28 is relaxed to adjust the mounting height position and mounting angle of the support plate 27 with respect to the first frame 25. That is, the height position and the operation direction of the lock release piece 29 of the lock release mechanism 21 are adjusted according to the height position and the release operation direction of the lock release lever 62 on the seat 61 side.

  Further, as shown in FIG. 1, the undulating action imparting mechanism 22 is installed on the floor surface of the work place on the rear side of the underbody 60 corresponding to the folded sheet 61. Then, the pressing roller 54 a of the hoisting motion imparting member 54 is made to be able to come into contact with the contact plate 64 on the backrest portion 61 b of the sheet 61, and the lifting string 54 b is connected to a part of the sheet 61. In this case, as shown in FIGS. 7A and 7B, when the height position of the test target sheet 61 has a height difference H with respect to the previous test target sheet 61, for example, a height position adjusting mechanism is provided. By rotating the operation handle 39 of M1, the elevating body 35 is raised and lowered via the screw shaft 36 and the nut 37, and the turning center position of the turning arm 44 is changed in the vertical direction. By this change, the height position of the undulation motion imparting member 54 can be adjusted according to the height position of the sheet 61.

  Further, when the sheet 61 to be tested is changed, and the range of undulation between the standing state and the lying state of the sheet 61 changes, as shown in FIGS. In the range adjustment mechanism M <b> 2, the attachment position of the connection plate 50 with respect to the first end 44 a of the swing arm 44 is adjusted in the length direction of the swing arm 44. At the same time, the mounting plate of the bar 52 with respect to the second end 44 b of the turning arm 44 is adjusted in the length direction of the turning arm 44. By these adjustments, the turning angles θ1 and θ2 of the turning arm 44 associated with the operation of the second cylinder 48 and the turning radii R1 and R2 of the raising and lowering giving member 54 on the bar 52 are changed, and the raising and lowering giving member 54 is changed. Is adjusted in accordance with the undulation range of the seat 61.

  Furthermore, when the horizontal width of the sheet 61 to be tested and the horizontal position of the contact plate 64 are different, as shown in FIGS. 9 (a) and 9 (b), the undulating action imparting member 54 with respect to the bar 52 in the horizontal position adjusting mechanism M3. The mounting position is adjusted in the length direction of the bar 52. By this adjustment, the horizontal intervals L1 and L2 from the turning arm 44 to the hoisting motion applying member 54 are changed, and the horizontal position of the hoisting motion applying member 54 is adjusted to the lateral width of the seat 61 and the left and right positions of the contact plate 64. Adjust.

  Thus, after the adjustment mechanisms M1 to M3 are adjusted according to the position and state of the seat 61, when the operation of the durability test apparatus is started, first, the first cylinder 30 of the lock release mechanism 21 is retracted. Thus, the lock release piece 29 is moved in the left direction in FIGS. For this reason, the lock release lever 62 of the seat 61 is actuated via the extension pipe 62a, so that the lock mechanism is brought into the unlocked state, and thus the seat 61 is released from the locked state at the lying down position.

  Subsequently, the second cylinder 48 of the hoisting motion imparting mechanism 22 is retracted, and the turning arm 44 is turned clockwise from the position shown in FIG. 6B. By this turning, the sheet 61 is pulled up via the pulling string 54b of the hoisting motion imparting member 54, and is rotated from the lying state shown in FIG. 6B to the standing state shown in FIG. Thereafter, the second cylinder 48 is protruded, and the turning arm 44 is turned counterclockwise from the position shown in FIG. By this turning, the sheet 61 is rotated from the standing state shown in FIG. 6A to the lying state shown in FIG. 6B via the pressing roller 54a of the raising and lowering imparting member 54, and the lying state is lowered by the lock mechanism. Locked to state.

  Then, the unlocking operation of the sheet 61 by the unlocking mechanism 21 and the raising / lowering operation between the lying state and the standing state of the sheet 61 by the raising / lowering giving mechanism 22 are repeated many times, for example, several thousand times. Is called. In this way, a test is performed to determine whether or not a defect occurs in the attachment portion including the seat 61 as the movable portion and the hinge 63 as the related portion.

  As described above, the durability test can be performed by repeatedly raising and lowering the auxiliary seat 61 disposed at the rear of the vehicle interior. In the same manner, the backrest of the driver's seat and the passenger's seat is repeatedly raised and lowered, or the rear seat that can be retracted in a standing state to widen the luggage room is repeatedly raised and lowered, and the movable parts and related The durability of the part can be confirmed.

  In this case, the cut parts assembled with the test object (backrest part or the like) are installed corresponding to the hoisting action applying mechanism 22, and the pressing roller 54 a of the swivel arm 44 of the hoisting action applying mechanism 22 is placed on the test plate. 64, and the lifting string 54b is connected to a part of the test object. Further, the lock release mechanism 21 in the state in which the inclination state of the support plate 27 is adjusted so that the lock release piece 29 of the lock release mechanism 21 faces the lock release lever of the test object (backrest portion or the like) is mounted on the surface plate B. Install in. Naturally, prior to this, the height of the lifting body 35 having the swivel arm 44, the swivel angles θ1 and θ2 of the swivel arm 44, and the swivel radii R1 and R2 of the hoisting motion imparting member 54 on the bar 52 and the swivel arm 44 The horizontal position and the like of the undulating motion imparting member 54 are adjusted.

The embodiment configured as described above has the following effects.
(1) In the durability test apparatus of this embodiment, the endurance test of the seat 61 is automatically performed by alternately and repeatedly operating the unlocking mechanism 21 and the undulating action imparting mechanism 22. Therefore, it is not necessary for the operator to manually perform the unlocking operation and the raising / lowering operation of the seat 61 many times, so that labor can be saved and the time required for the durability test can be shortened.

  (2) Since the unlocking operation and the raising / lowering operation of the seat 61 are automatically performed, the fatigue accumulates with the progress of the work as in the case where the worker performs the manual operation, and the raising / lowering of the seat 61 is performed. There is no possibility that the operation speed is lowered or the operation speed is changed due to individual differences among test workers. Therefore, it is possible to suppress the occurrence of variations in the results of the durability test, and to obtain appropriate test results.

  (3) Further, in the durability test apparatus of this embodiment, the position of the lock release piece 29 of the lock release mechanism 21 can be adjusted. For this reason, even if the position of the unlocking lever 62 on the seat 61 side varies depending on the vehicle type of the vehicle for which the durability test is performed or the seat to be tested, the unlocking piece so as to correspond to the unlocking lever 62 part. The position of 29 can be easily adjusted.

  (4) Moreover, in the durability test apparatus according to this embodiment, the undulation motion imparting member 54 of the undulation motion imparting mechanism 22 is interposed via the bar 52 extending in the horizontal direction at the end of the swivel arm 44 that can pivot in the vertical plane. The seat 61 is raised and lowered via the raising and lowering imparting member 54 when the turning arm 44 is turned by the second cylinder 48. For this reason, by turning in the vertical plane of the turning arm 44, the seat 61 can be smoothly raised and lowered between the standing state and the lying down state in substantially the same manner as the movement of the arm manually by the operator.

  (5) In addition, in the durability test apparatus of this embodiment, the height position adjustment mechanism M1 for adjusting the height position, the turning range, and the horizontal position of the undulation action imparting member 54 of the undulation action imparting mechanism 22. A turning range adjusting mechanism M2 and a horizontal position adjusting mechanism M3 are provided. For this reason, even if the height position, turning range, or lateral width of the seat 61 varies depending on the vehicle type of the vehicle to be subjected to the durability test or the seat to be tested, the undulation operation is imparted according to the position and state of the seat 61. The position and turning range of the member 54 can be easily adjusted and set.

(Example of change)
In addition, this embodiment can also be changed and embodied as follows.
In the embodiment, the configuration of the lock release mechanism 21 for releasing the seat 61 from the locked state is arbitrarily changed. For example, the support plate 27 is supported so as to be rotatable with respect to the first frame 25 by a shaft.

  -In the said embodiment, changing the structure of the raising / lowering operation | movement provision mechanism 22 for driving the raising / lowering of the sheet | seat 61 arbitrarily. For example, a pressing roller can be provided in place of the lifting string 54b so that the test object can be raised and lowered by a pair of pressing rollers, or a testing object can be raised and lowered by providing a lifting string instead of the pressing roller 54a. And so on. In addition, when a pair of pulling strings is used, one pulling string pulls down the test object. In addition, when a pair of pressing rollers is used, it is necessary to provide a pair of contact plates corresponding to both pressing rollers on the test object.

-The lock release mechanism 21 is mounted on the second frame 34 of the hoisting motion applying mechanism 22.
-The unlocking mechanism 21 and the undulating motion imparting mechanism 22 are mounted on the tip of the cantilever, and the cantilever is not a cut part so that the unlocking mechanism 21 and the undulating motion imparting mechanism 22 face the test object. The system shall be configured so that it can enter the actual vehicle and execute the durability test in the vehicle.

The perspective view which shows the durability test apparatus of the vehicle seat and seat attachment part of one Embodiment. The side view which expands and shows the lock release mechanism in the durability test apparatus of FIG. The top view of the lock release mechanism of FIG. The front view which expands and shows the raising / lowering motion provision mechanism in the durability test apparatus of FIG. The side view of the raising / lowering operation | movement provision mechanism of FIG. (A) And (b) is a schematic front view which shows the operation state of the raising / lowering motion provision mechanism. (A) And (b) is a schematic front view which shows the adjustment state of the different height of the connection part in the raising / lowering motion provision mechanism. (A) And (b) is a schematic front view which shows the adjustment state of the turning range from which the connection part in the raising / lowering operation | movement provision mechanism differs. (A) And (b) is a schematic front view which shows the adjustment state of the horizontal direction position from which the connection part in the raising / lowering motion provision mechanism differs. (A) And (b) is a perspective view which shows the durability test method of the conventional vehicle seat.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 21 ... Lock release mechanism as a lock release means, 22 ... Lifting action provision mechanism as a raising / lowering action provision means, 25 ... 1st frame, 27 ... Support plate which comprises a position adjustment part, 28 ... Clamp, 29 ... Lock release piece 30 ... first cylinder as release driving means, 30a ... piston rod, 34 ... second frame, 34a ... guide rail as guide part, 35 ... lifting body constituting height position adjusting mechanism, 36 ... same mechanism A screw shaft constituting 39, an operation handle constituting the mechanism, 40 an operation shaft, 43 a fixing screw, 44 a turning arm as a turning member, 44a a first end, 44b a second end 48, and so on. Second cylinder as undulating drive means, 48a ... piston rod, 50 ... connecting plate constituting turning range adjusting mechanism, 52 ... bar, 54 ... connecting part constituting horizontal position adjusting mechanism Undulating motion imparting member, 54a ... pressure roller, 54b ... pulling string, 61 ... sheet, 61a ... seat, 61b ... backrest, 62 ... unlocking lever as unlocking part, 62a ... extension pipe, M1 ... height Position adjustment mechanism, M2 ... turning range adjustment mechanism, M3 ... horizontal position adjustment mechanism.

Claims (10)

In a durability test apparatus for a vehicle seat and a seat mounting portion for testing the durability of a movable portion of a vehicle seat and its related parts,
Unlocking means for releasing the seat from the locked state;
An endurance test apparatus for a vehicle seat and a seat mounting portion, comprising: a raising / lowering motion imparting means for repeatedly moving the seat between a standing state and a lying state. 2. The vehicle seat and the seat mounting portion according to claim 1, wherein the lock release means includes a lock release piece operated by a release drive means, and the position of the lock release piece can be adjusted. Test equipment. The hoisting motion applying means includes a swiveling member that is swung in a vertical plane by the hoisting driving means, and the swiveling member is provided with a connecting portion that is connected to a seat, and the swiveling member is turned to turn the connecting portion. 3. The durability test apparatus for a vehicle seat and a seat mounting portion according to claim 1, wherein the seat is operated up and down. 4. The vehicle seat and seat mounting portion durability test apparatus according to claim 3, wherein the undulating motion imparting means includes a height position adjusting mechanism for adjusting the height of the connecting portion. 5. The durability test apparatus for a vehicle seat and a seat mounting portion according to claim 3, wherein the hoisting motion applying means includes a turning range adjusting mechanism for adjusting a turning range of the connecting portion. The vehicle seat according to any one of claims 3 to 5, wherein the undulation motion imparting means includes a horizontal position adjusting mechanism for adjusting a horizontal position of the connecting portion. And durability test equipment for seat mounting parts. In a vehicle seat and a seat mounting portion durability test apparatus for testing the durability of a movable portion of a vehicle seat and related parts thereof,
The first frame supports the first cylinder, and at the tip of the piston rod of the first cylinder, a lock release piece that can be engaged with the lock release portion of the seat is provided to operate the first cylinder. The seat is released from the locked state by, and a position adjusting unit for adjusting the position of the unlocking piece is provided between the first frame and the first cylinder,
The swivel arm is supported on the second frame so as to be swivelable in a vertical plane, and the piston rod of the second cylinder is connected to the first end of the swivel arm, and the seat is attached to the second end of the swivel arm. A connecting portion to be connected is provided, and the vehicle seat is raised and lowered between the standing state and the lying state via the connecting portion by the operation of the second cylinder, and connected to the second frame. An endurance test apparatus for a vehicle seat and a seat mounting portion, characterized in that a height adjusting portion for adjusting the height of the connecting portion is provided between the two portions. The height adjusting unit includes a guide unit provided on the second frame so as to extend in the vertical direction, a lift unit that is guided by the guide unit so as to be movable up and down, and that supports the swivel arm so as to be capable of pivoting, and a lift unit thereof 8. The vehicle seat and seat mounting portion durability test apparatus according to claim 7, further comprising an operation unit for adjusting the body in the vertical direction and fixing the body at the moved position. An adjusting portion is provided between the first end of the swivel arm and the piston rod of the second cylinder to adjust the connecting position of the piston rod with respect to the first end in the length direction of the swivel arm. The durability test device for a vehicle seat and a seat mounting portion according to claim 7 or 8, wherein A bar extending in the horizontal direction is provided at the second end of the swivel arm, the bar is provided with the connecting portion, and the position of the bar between the bar and the second end is set to the length of the swivel arm. 8. An adjusting part for adjusting the direction is provided, and an adjusting part for adjusting the position of the connecting part in the length direction of the bar is provided between the bar and the connecting part. The vehicle seat and the seat mounting portion durability test apparatus according to claim 9.

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