JP2016078576A - Steering wheel with shock absorption structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a steering wheel with a shock absorption structure capable of solving such a problem that an air bag system for increasing safety of a steering wheel is expensive and an air bag expands even when a vehicle is lightly brought into collision.SOLUTION: A steering wheel with a shock absorption structure includes: a steering wheel of which one side is provided with a deflection column and the other side is provided with an upper space, with the upper space being extended along a depth direction, a storage space being provided along the depth direction and the storage space being provided with a socket along the depth direction; a shock absorption structure of which one edge is a force receiving part and the other edge is a regulation part, with a direction in which the force receiving part and the regulation part are connected with each other being set as an axial direction, a plurality of shock absorbing elements being provided between the force receiving part and the regulation part, a circular-arc shape step being provided between both edges of each shock absorption element and the shock absorption elements circularly arrayed assuming a cage shape; and a cover which is stored in the upper space of the steering wheel and comes into contact with the force receiving part of the shock absorbing structure.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a vehicle handle, and more particularly, to a vehicle handle with an impact absorbing structure that can prevent an occupant from being injured when a traffic accident or a dangerous situation occurs.

  Vehicles are an indispensable part of daily life. As vehicle flow increases, traffic accidents are increasing. In a traffic accident, in order to reduce the injury of a driver or an occupant, a vehicle security device is regarded as important.

  The airbag assembled to the steering wheel is a common vehicle security device. By assembling an airbag to a general vehicle handle, when the vehicle collides, the airbag is interposed between the driver and the handle, so that the driver can be prevented from colliding strongly with the handle. It is possible to reduce the driver's injury.

  Please refer to FIG. FIG. 1 is a view showing an airbag system 10 assembled to a conventional handle. When the airbag system 10 detects the impact of the vehicle by the impact sensor 11, the control unit 12 activates the gas generator 14 assembled in the handle 13 of the vehicle to generate gas, and the air The bag 15 is inflated. The gas generator 14 includes a gunpowder and an igniter. Due to the instantaneous explosion of gunpowder, a large amount of gas is generated and the airbag 15 is inflated. However, the conventional airbag system 10 has the following drawbacks.

(1) The airbag 15 is a security device for reducing passenger injury. In order to inflate the airbag 15, an intense chemical reaction that explodes the explosive is necessary. In order to achieve explosion safety at the same time, the difficulty of manufacturing the airbag 15 is high, and the production cost is greatly increased. For this reason, only a few manufacturers can produce airbags, and airbags are low in production and expensive.

(2) In order to inflate the airbag 15, explosives and an igniter are necessary, and since the impact sensor 11 and the control unit 12 are also necessary, the mechanism is extremely complicated, and manufacturing and assembly work are difficult. For this reason, airbags are low in production and expensive.

(3) The airbag 15 is expanded by an instantaneous explosion of explosives, and the explosion instantaneously releases chemical energy. Therefore, a large amount of energy is instantaneously released during the process of expanding the airbag 15. . Thereby, when the vehicle is strongly impacted, it is possible to avoid the driver from colliding with the handle 13 or the passenger from colliding with the window glass by instantaneously inflating the airbag 15. .
However, when the vehicle receives an impact that is not strong, the impact sensor 11 detects the impact and activates the gas generator 14 to detect the impact, even though the airbag 15 does not inflate, and the airbag 15 is activated. Inflates. Thus, since there is a high possibility that the passenger will be injured by the explosion of the gas generator 14 and the instantaneous expansion of the airbag 15, the safety is not good.

  The main object of the present invention is to provide an impact absorbing structure capable of solving the disadvantage that an airbag system for increasing the safety of a steering wheel is expensive and the airbag is inflated even when the vehicle is lightly collided. It is to provide a handle for a vehicle with a handle.

  The vehicle handle with a shock absorbing structure according to the present invention has a turning column on one side and an upper space on the other side, and the upper space extends along the depth direction. A housing space is provided along the direction, the housing space is provided with a handle provided with a socket along the depth direction, one end is a force receiving portion, the other end is a regulating portion, and the force receiving portion The direction in which the restricting portions are connected is an axial direction, and a plurality of impact absorbers are provided between the force receiving portion and the restricting portion, and an arc-shaped step is provided between both ends of each impact absorber. Since the arc-shaped step swells along the axial direction, these shock absorbers arranged in a circle are housed in a shock-absorbing structure having a bowl shape and a space above the handle, and a force receiving portion of the shock-absorbing structure And a lid that abuts, the restricting portion of the shock absorbing structure is a socket of the handle Plug is regulated, the force receiving portion of the shock absorbing structure is characterized in that it is displaceably accommodated along the axial direction in the accommodation space.

  The vehicle handle with an impact absorbing structure according to the present invention is characterized in that the force receiving portion of the impact absorbing structure has a strip shape.

  In the vehicle handle with an impact absorbing structure of the present invention, the accommodation space of the handle has an accommodation corresponding portion, the accommodation correspondence portion includes an intervening step, and both ends of the intervening step are connected to the arc refraction steps, respectively, The steps are symmetrical to each other, and a part of the force receiving portion of the shock absorbing structure is formed with a matching step corresponding to the outline of the receiving portion of the receiving space. The matching step of the shock absorbing structure is the receiving portion. Thus, the shock absorbing structure can be displaced only in the axial direction.

  The vehicle handle with an impact absorbing structure of the present invention has a plurality of localization parts provided in the space above the handle, and a plurality of localization parts are provided on one surface of the lid. It is characterized by being localized corresponding to the localization part.

  The vehicle handle with a shock absorbing structure of the present invention has three localization parts provided in the upper space of the handle, and three localization parts are provided on one surface of the lid, and each localization part has a circular cross-sectional shape. Each of the positioning parts is a cylinder.

  According to the vehicle handle with a shock absorbing structure of the present invention, the airbag system for increasing the safety of the handle is expensive, and the disadvantage that the airbag is inflated even if the vehicle is lightly collided is solved. Has the effect of being possible.

It is a figure which shows the airbag system assembled | attached to the conventional handle | steering-wheel. It is a disassembled perspective view which shows the structure of one Example of this invention. It is a disassembled perspective view which shows the one part structure of one Example of this invention. It is a perspective view which shows the combined state of one Example of this invention. It is sectional drawing which shows the structure of one Example of this invention, Comprising: The shock absorption structure shows the state which has not received external force. It is sectional drawing which shows the structure of one Example of this invention, Comprising: The shock absorption structure shows the state which received the external force and deform | transformed.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
Please refer to FIG. 2 to FIG. 2 is an exploded perspective view showing the structure of one embodiment of the present invention, FIG. 3 is an exploded perspective view showing a part of the structure of one embodiment of the present invention, and FIG. 4 is one embodiment of the present invention. FIG. 5 is a cross-sectional view showing the structure of an embodiment of the present invention, showing a state in which the shock absorbing structure is not subjected to external force, and FIG. It is sectional drawing which shows the structure of one Example of invention, Comprising: The impact-absorbing structure shows the state which received the external force and deform | transformed. The vehicle handle with an impact absorbing structure according to the present embodiment includes a handle 20, an impact absorbing structure 30, and a lid 40.

  The steering wheel 20 is provided with a turning column 21 on one side and an upper space 22 on the other side. The upper space 22 extends along the depth direction D, and an accommodation space 23 is provided along the depth direction D. The housing space 23 is provided with a socket 24 along the depth direction D. A plurality of localization portions 221 are provided in the upper space 22. In this embodiment, each localization portion 221 is a hole having a circular cross-sectional shape. The socket 24 is a hole having a circular cross-sectional shape. In the present embodiment, the accommodation space 23 has an accommodation corresponding portion 231, and the accommodation correspondence portion 231 includes an intervening step 232. Both ends of the intervening step 232 are connected to the arc refraction step 233, respectively. The two arc refraction stages 233 are symmetrical with each other. The two arc refraction stages 233 are each provided with a localization portion 221.

The shock absorbing structure 30 has a force receiving portion 31 at one end and a restricting portion 32 at the other end. The force receiving portion 31 has a strip shape. An alignment corresponding step 311 corresponding to the contour of the accommodation corresponding portion 231 of the accommodation space 23 is formed in a part of the force receiving portion 31. A direction connecting the force receiving portion 31 and the restricting portion 32 is defined as an axial direction X.
A plurality of shock absorbers 33 are provided between the force receiving portion 31 and the restricting portion 32. The shock absorber 33 is a plastically deformable metal strip, and an arc-shaped step 331 is provided between both ends thereof. Since the arc-shaped step 331 swells along the axial direction X, these shock absorbers 33 arranged in a circular shape have a bowl shape. The restricting portion 32 of the shock absorbing structure 30 is restricted by being inserted into the socket 24 of the handle 20. Since the force receiving portion 31 of the shock absorbing structure 30 corresponds to the accommodating portion 231, the shock absorbing structure 30 can be displaced only along the axial direction X.

  The lid 40 is formed corresponding to the contour of the upper space 22 of the handle 20. A plurality of localization parts 41 are provided on one surface of the lid 40. In the present embodiment, the alignment portion 41 is a cylinder. The lid 40 is accommodated in the upper space 22 of the handle 20, and each positioning portion 41 is positioned corresponding to each positioning portion 221 and abuts against the force receiving portion 31 of the shock absorbing structure 30.

Next, the use state of the present invention will be described. The handle 20 can control the marching direction of the vehicle by coupling the turning column 21 to the vehicle. When the vehicle collides and the driver collides with the handle 20, the lid 40 disposed in the upper space 22 of the handle 20 receives an impact force from the driver, and the lid 40 receives the force receiving portion 31 of the impact absorbing structure 30. Therefore, the force receiving portion 31 receives the impact force, and the impact force is transmitted to the impact absorber 33 of the impact absorbing structure 30 via the force receiving portion 31. The force receiving portion 31 receives the impact force and is displaced to the restricting portion 32, and the impact absorber 33 of the impact absorbing structure 30 is directly deformed, whereby the impact force is absorbed. Since each shock absorber 33 swells along the axial direction X, when it receives the impact force, it deforms so as to swell further outward.
As shown in FIGS. 5 and 6, the deformation of the shock absorber 33 of the shock absorbing structure 30 is deformed in the expected direction, that is, the original shape of the shock absorber 33 guides the direction of deformation. Resistance can be minimized, ensuring complete deformation in the expected direction, and impact absorption rate can be maximized.

  When an impact test is performed using a human body model, after the chest of the human body model collides with the handle 20, the impact energy is absorbed by the plastic deformation of the impact absorber 33 of the shock absorbing structure 30 disposed in the handle 20. Thus, the reaction force applied to the human body model of the handle 20 is lower than 11110 Newton. After the head part of the human body model collides with the handle 20, the deceleration of the head part does not exceed 120 g, and the time exceeding 80 g does not exceed 3 msec. For this reason, the vehicle handle with an impact absorbing structure according to the present invention meets the safety regulations of the turning control system.

  As is clear from the above description, according to the vehicle handle with an impact absorbing structure according to the present invention, it is possible to absorb a large amount of impact energy simply by assembling the impact absorbing structure 30 in the handle 20. Therefore, the vehicle handle with a shock absorbing structure according to the present invention conforms to the safety regulation of the turning control system, has a very simple structure, low manufacturing cost, low manufacturing difficulty, and is sold at a lower price. Is possible.

  On the other hand, when the shock absorbing structure 30 is deformed by receiving an impact force, it is only necessary to replace the shock absorbing structure 30, and it is not necessary to replace the entire handle 20, so that the repair cost can be reduced. It is.

  The present invention can be applied to a vehicle handle.

DESCRIPTION OF SYMBOLS 10 Airbag system 11 Impact sensor 12 Control unit 13 Handle 14 Gas generator 15 Airbag 20 Handle 21 Turning column 22 Upper space 23 Housing space 24 Socket 30 Shock absorption structure 31 Force receiving part 32 Control part 33 Shock absorber 40 Cover 41 Alignment positioning part 221 Locating part 231 Accommodation corresponding part 232 Intervening stage 233 Arc refraction stage 311 Matching corresponding stage 331 Arc shaped stage D Depth direction X Axial direction

Claims (5)

A turning column is provided on one side, an upper space is provided on the other side, the upper space extends along the depth direction, and an accommodation space is provided along the depth direction. The housing space has a handle provided with a socket along a depth direction;
One end is a force receiving portion, the other end is a restricting portion, the direction connecting the force receiving portion and the restricting portion is an axial direction, and a plurality of shock absorbers are provided between the force receiving portion and the restricting portion. An arc-shaped step is provided between both ends of each of the shock absorbers, and the arc-shaped step swells along the axial direction, so that the shock absorbers arranged in a circle are arranged. The child has a shock-absorbing structure with a heel shape,
A lid that is housed in the upper space of the handle and abuts against the force receiving portion of the shock absorbing structure;
The restriction portion of the shock absorbing structure is restricted by being inserted into the socket of the handle, and the force receiving portion of the shock absorbing structure is housed in the housing space so as to be displaceable along the axial direction. Characterized by the
Vehicle handle with shock absorbing structure.   The vehicle handle with a shock absorbing structure according to claim 1, wherein the force receiving portion of the shock absorbing structure has a strip shape.   The accommodation space of the handle includes an accommodation corresponding portion, the accommodation correspondence portion includes an intervening step, both ends of the intervening step are connected to an arc refraction step, and the two arc refraction steps are symmetrical to each other, A part of the force receiving portion of the shock absorbing structure is formed with an alignment corresponding step corresponding to the outline of the accommodating corresponding portion of the accommodating space, and the alignment corresponding step of the shock absorbing structure is the accommodating corresponding portion. The vehicle handle with an impact absorbing structure according to claim 1, wherein the impact absorbing structure can be displaced only along the axial direction.   A plurality of localization portions are provided in the upper space of the handle, a plurality of alignment portions are provided on one surface of the lid, and each alignment localization portion of the lid corresponds to each localization portion. The vehicle handle with a shock absorbing structure according to claim 1, wherein the vehicle handle is positioned.   Three positioning portions are provided in the upper space of the handle, and three positioning portions are provided on one surface of the lid, and each positioning portion is a hole having a circular cross-sectional shape, 5. The vehicle handle with an impact absorbing structure according to claim 4, wherein the localization portion is a cylinder.

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