A kind of device whipping the determination head contact point of test for automobile rear seat
Technical field
The invention belongs to vehicle safety experimental technique field, relate to a kind of device whipping the determination head contact point of test for automobile rear seat.
Background technology
Nowadays, the security performance of automobile is more and more subject to people's attention, and more and more comprehensively vehicle safety performance evaluation criterion starts to be implemented.During in order to investigate rear-end impact generation; back seat is to the protective value of rear row occupant; after Europe new car assessment routine (European New Car Assessment Programme, Euro NCAP) adds in up-to-date version, row whips the evaluation rule of test.Because Euro NCAP has higher authoritative in the world, the evaluation that back seat whips test will be subject to the attention of each car load producer gradually.
Whipping of back seat is tested based on static measurement, the gap, rear (Backset) after investigating respectively after row's passenger riding and significant height (Effect ive Height).In the measuring process in gap in the wings, determine that the contact point that rear row's occupant's head and back seat are rested the head on is a most important step, at present, normally used method is according to the step in Euro NCAP, first calculate, obtain the theoretical level of contact point, then find the point of corresponding height on headrest, thus determine contact point.Because each vehicle has different parameters, and backrest angle after at every turn putting is also different, finds contact point again if all calculated each measurement, the inefficiency of test will be made, therefore, need a kind of test instrument determining contact point fast, increase work efficiency.
Summary of the invention
The present invention is directed to the problems referred to above that existing technology exists, there is provided a kind of device whipping the determination head contact point of test for automobile rear seat, technical matters to be solved by this invention is: how to realize detecting automobile rear efficiently and whip in test the contact point determined fast between occupant's head and back seat.
Object of the present invention realizes by following technical proposal:
A kind of device whipping the determination head contact point of test for automobile rear seat, it is characterized in that, this device comprises base, main support, auxiliary pole and sounding rod, described base is arranged in the horizontal direction, described base is installed with the first rotating shaft, the lower end of described main support is hinged in described rotating shaft and this main support can rotate around the first rotating shaft respect thereto in vertical plane, the upper end of described main support is installed with the second rotating shaft, the lower end of described auxiliary pole is hinged in the second rotating shaft and this auxiliary pole can rotate relative to main support in vertical plane around the second rotating shaft, described first rotating shaft and the second rotating shaft parallel, described sounding rod is fixed on the upper end of described auxiliary pole, being provided with between the lower end of described auxiliary pole and the upper end of main support can by locking piece fixing for both turned positions.
Its principle is as follows: during test, base is lain in a horizontal plane on automobile rear seat, between base and main support, corner is in predetermined angle and makes, regulate the corner between auxiliary pole and main support, sounding rod is made to be in horizontal direction, the leading section of sounding rod is made to touch the surface of automobile rear seat to protracting by driving main support around the first axis of rotation, this touch a little be occupant's head required for this experiment and automobile rear seat touch a little, the rotation of main support is considered as action when simulating crew is whipped.Action when this device utilizes rotating main support and base simulating crew to be whipped, utilize the neck of auxiliary pole simulating crew, utilize the head of sounding rod simulating crew, realize detecting automobile rear efficiently and whip in test the contact point determined fast between occupant's head and back seat.
In the device of above-mentioned a kind of determination head contact point whipping test for automobile rear seat, be provided with between described base and main support in fan-shaped index dial, described index dial has the angle index for measuring the elevation angle between base and main support, described index dial along vertical plane arrange and the axle center of the fan shape center of this index dial and described first rotating shaft coincide, a side of described index dial is fixed on base, this main support can be made by driving main support to skim over the card of described index dial around the first axis of rotation.Make after being provided with index dial to observe angle value intuitively between main support and base, be convenient to the elevation angle determined accurately between the two, also can regulate both variable quantities fast and accurately, thus measure the test figure in the situation of a series of different elevations angle efficiently.
In the device of above-mentioned a kind of determination head contact point whipping test for automobile rear seat, described main support comprises the first plate body and second plate body of flat, the lower end of described first plate body is hinged in the first rotating shaft, the upper end of described first plate body has a backstay along this plate body length direction, the lower end of described second plate body and the upper end phase clamping of the first plate body, the side of described backstay is resisted against on a side of the second plate body.Backstay and the second plate body against effect be form multiple support and locating effect, make clamping between the first plate body and the second plate body more stable, the benefit of clamping is can realize removably connecting, make in test can change the second plate body fast, thus adapt to the simulation of the occupant of various different building shape, compare the speed that non-removable mode accelerates test, improve the efficiency of test.
In the device of above-mentioned a kind of determination head contact point whipping test for automobile rear seat, described second plate body have some fixture blocks, form the draw-in groove of rectangle between the side of described fixture block and the second plate body, the upper end of described first plate body to be plugged in described draw-in groove and to be formed and coordinates.The draw-in groove of rectangle easily matches with the thickness of slab of the flat of the first plate body, and its clamping result is more stable, on the side being resisted against the first plate body that fixture block can be stable, form stable fixing, test figure is stablized, avoids, because rock and repeated test, improve the efficiency of test.
In the device of above-mentioned a kind of determination head contact point whipping test for automobile rear seat, the both sides, upper end of described first plate body are respectively installed with outward extending hand handle, described hand in the U-shaped of half-twist, this hand in be positioned at U-shaped open-mouth the upper end sidepiece of one of them end and described first plate body be fixedly connected.Can conveniently drive main support to rotate after being provided with handle, handle takes the shape of the letter U and more easily holds, in the application the half-twist of indication U-shaped can narrow sense be interpreted as level fell after U-shaped, normal U-shaped is vertical direction.
In the device of above-mentioned a kind of determination head contact point whipping test for automobile rear seat, described base comprises first body of rod and second body of rod of equal horizontal positioned, one end of described first body of rod has described first rotating shaft, the other end of this first body of rod and the middle part of second body of rod are connected, first body of rod and second body of rod is perpendicular and both are formed T-shaped.T-shaped be distributed with to be beneficial to keep the stable of base, the stable accuracy that can ensure test result of base, guarantee can not repeated test, improves the efficiency of test.
In the device of above-mentioned a kind of determination head contact point whipping test for automobile rear seat, the upper surface of described auxiliary pole is provided with the horizontal checkout instrument for testing this upper surface levelness, and the axis of described sounding rod and the upper surface of described auxiliary pole parallel.The effect of horizontal checkout instrument is the upper surface level ensureing auxiliary pole, thus indirectly ensures sounding rod level, with the needs of Pass Test.
In the device of above-mentioned a kind of determination head contact point whipping test for automobile rear seat, described device also comprises a subsidiary ball, the diameter of described subsidiary ball is 150mm-180mm, the surface of this subsidiary ball has two and the isodiametric limbus line of this subsidiary ball, these two limbus lines mutually vertically and mutually intersect to form two point of crossing, one of them point of crossing place offer along this subsidiary sphere diameter to shrinkage pool, described shrinkage pool can insert for the end of described sounding rod and both matching size close.When the front end tip of sounding rod encounters the place of the injustice such as seat gap time, sounding rod just cannot proper testing, need to install subtest ball additional, shrinkage pool on subsidiary ball is enclosed within sounding rod, because another point of crossing of two limbus lines and this shrinkage pool are in symmetric position, another point of crossing just can show the real point of impingement, which increases the measurement range of sounding rod, make need not change survey instrument in the face of gap position, indirectly improve the efficiency of test.
Locking piece is the combination of nuts and bolt or the combination of ratchet and ratchet.
Compared with prior art, advantage of the present invention is as follows: action when this device utilizes rotating main support and base simulating crew to be whipped, utilize the neck of auxiliary pole simulating crew, utilize the head of sounding rod simulating crew, realize detecting automobile rear efficiently and whip in test the contact point determined fast between occupant's head and back seat.Improve the measurement range of sounding rod after installing subsidiary ball additional, make need not change survey instrument in the face of gap position, indirectly improve the efficiency of test.
Accompanying drawing explanation
Fig. 1 is that this determines the one-piece construction isometric front view of the device of head contact point fast.
Fig. 2 is that this determines the one-piece construction reverse side stereographic map of the device of head contact point fast.
Fig. 3 is the partial structurtes side view of auxiliary pole and the second plate body.
Fig. 4 is the partial structurtes vertical view of auxiliary pole and the second plate body.
Fig. 5 is the partial structurtes stereographic map of auxiliary pole and the second plate body.
In figure, 1 base; 2 main supports; 3 auxiliary poles; 4 sounding rods; 5 first rotating shafts; 6 second rotating shafts; 7 locking pieces; 8 index dials; 91 first plate bodys; 92 second plate bodys; 10 backstays; 11 fixture blocks; 12 draw-in grooves; 13 hand handles; 14 first bodies of rod; 15 second bodies of rod; 16 horizontal checkout instrument; 17 subsidiary balls; 18 limbus lines; 19 shrinkage pools.
Embodiment
Be below specific embodiments of the invention and by reference to the accompanying drawings, technical scheme of the present invention is further described, but the present invention be not limited to these embodiments.
As shown in Figure 1, this device comprises base 1, main support 2, auxiliary pole 3 and sounding rod 4, base 1 is arranged in the horizontal direction, base 1 is installed with the first rotating shaft 5, the lower end of main support 2 is hinged in rotating shaft and this main support 2 can rotate around the first rotating shaft 5 respect thereto 1 in vertical plane, the upper surface of auxiliary pole 3 is provided with the horizontal checkout instrument 16 for testing this upper surface levelness, and the axis of sounding rod 4 and the upper surface of auxiliary pole 3 parallel.The effect of horizontal checkout instrument 16 is the upper surface levels ensureing auxiliary pole 3, thus indirectly ensures sounding rod 4 level, with the needs of Pass Test.Be provided with in fan-shaped index dial 8 between base 1 and main support 2, index dial 8 has the angle index for measuring the elevation angle between base 1 and main support 2, index dial 8 along vertical plane arrange and the axle center of the fan shape center of this index dial 8 and the first rotating shaft 5 coincide, a side of index dial 8 is fixed on base 1, makes this main support 2 skim over the card of index dial 8 by driving main support 2 around the first rotating shaft 5 rotational.Make after being provided with index dial 8 to observe angle value intuitively between main support 2 and base 1, be convenient to the elevation angle determined accurately between the two, also can regulate both variable quantities fast and accurately, thus measure the test figure in the situation of a series of different elevations angle efficiently.
As shown in Figures 2 and 3, the upper end of main support 2 is installed with the second rotating shaft 6, the lower end of auxiliary pole 3 is hinged in the second rotating shaft 6 and this auxiliary pole 3 can rotate relative to main support 2 in vertical plane around the second rotating shaft 6, first rotating shaft 5 and the second rotating shaft 6 parallel, sounding rod 4 is fixed on the upper end of auxiliary pole 3, main support 2 comprises the first plate body 91 and the second plate body 92 of flat, the lower end of the first plate body 91 is hinged in the first rotating shaft 5, the upper end of the first plate body 91 has a backstay 10 along this plate body length direction, the lower end of the second plate body 92 and the upper end phase clamping of the first plate body 91, the side of backstay 10 is resisted against on a side of the second plate body 92.Backstay 10 and the second plate body 92 against effect be form multiple support and locating effect, make clamping between the first plate body 91 and the second plate body 92 more stable, the benefit of clamping is can realize removably connecting, make in test to change the second plate body 92 fast, thus adapt to the simulation of the occupant of various different building shape, compare the speed that non-removable mode accelerates test, improve the efficiency of test.Second plate body 92 has some fixture blocks 11, and the upper end forming draw-in groove 12, first plate body 91 of rectangle between fixture block 11 and the side of the second plate body 92 to be plugged in draw-in groove 12 and to be formed and coordinates.The draw-in groove 12 of rectangle easily matches with the thickness of slab of the flat of the first plate body 91, its clamping result is more stable, on the side being resisted against the first plate body 91 that fixture block 11 can be stable, form stable fixing, test figure is stablized, avoid, because rock and repeated test, improve the efficiency of test.The both sides, upper end of the first plate body 91 are respectively installed with outward extending hand 13, and hand is the U-shaped of half-twist 13, and this hand is fixedly connected the upper end sidepiece of one of them end and the first plate body 91 of being positioned at U-shaped open-mouth in 13.Can conveniently drive main support 2 to rotate after being provided with handle, handle takes the shape of the letter U and more easily holds, in the application the half-twist of indication U-shaped can narrow sense be interpreted as level fell after U-shaped, normal U-shaped is vertical direction.
As shown in Figure 4 and Figure 5, being provided with between the lower end of auxiliary pole 3 and the upper end of main support 2 can by locking piece 7 fixing for both turned positions.Locking piece 7 is the combination of nuts and bolt or the combination of ratchet and ratchet.Base 1 comprises first body of rod 14 and second body of rod 15 of equal horizontal positioned, one end of first body of rod 14 has the first rotating shaft 5, the other end of this first body of rod 14 and the middle part of second body of rod 15 are connected, first body of rod 14 and second body of rod 15 is perpendicular and both are formed T-shaped.T-shaped be distributed with to be beneficial to keep the stable of base 1, the stable accuracy that can ensure test result of base 1, guarantee can not repeated test, improves the efficiency of test.
Device also comprises a subsidiary ball 17, the diameter of subsidiary ball 17 is 150mm-180mm, the surface of this subsidiary ball 17 has two and the isodiametric limbus line 18 of this subsidiary ball 17, these two limbus lines 18 mutually vertically and mutually intersect to form two point of crossing, one of them point of crossing place offers the shrinkage pool 19 along this subsidiary ball 17 radial direction, and shrinkage pool 19 can insert for the end of sounding rod 4 and both matching size close.During test, base 1 is lain in a horizontal plane on automobile rear seat, between base 1 and main support 2, corner is in predetermined angle and makes, regulate the corner between auxiliary pole 3 and main support 2, sounding rod 4 is made to be in horizontal direction, the surface making the leading section of sounding rod 4 to touch automobile rear seat to protracting is rotated around the first rotating shaft 5 by driving main support 2, this touch a little be occupant's head required for this experiment and automobile rear seat touch a little, the rotation of main support 2 is considered as action when simulating crew is whipped.Action when this device utilizes rotating main support 2 and base 1 simulating crew to be whipped, utilize the neck of auxiliary pole 3 simulating crew, utilize the head of sounding rod 4 simulating crew, realize detecting automobile rear efficiently and whip in test the contact point determined fast between occupant's head and back seat.When the front end tip of sounding rod 4 encounters the place of the injustice such as seat gap time, sounding rod 4 just cannot proper testing, need to install subtest ball additional, shrinkage pool 19 on subsidiary ball 17 is enclosed within sounding rod 4, because another point of crossing of two limbus lines 18 and this shrinkage pool 19 are in symmetric position, another point of crossing just can show the real point of impingement, which increase the measurement range of sounding rod 4, make need not change survey instrument in the face of gap position, indirectly improve the efficiency of test.
Specific embodiment described herein is only to the explanation for example of the present invention's spirit.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment, but can't depart from spirit of the present invention or surmount the scope that appended claims defines.