Steering system

Abstract

This adjusts the load that occurs when the steering system detaches from the vehicle-side bracket in the event of a secondary collision. [Solution] The steering device comprises a column-side bracket 12 and a fastening portion 2 that is fastened to sandwich the column-side bracket. The fastening portion includes a first member 3 positioned to contact the edge of a notch 121 provided in the column-side bracket from one side, a second member positioned to contact the edge of the notch provided in the column-side bracket from the other side, and a cylindrical portion 31 positioned between the first member and the second member. The first member and the second member are provided with a pressing portion 33 and a through hole 331 adjacent to the pressing portion that penetrates the first member or the second member in the thickness direction. The width of the through hole is adjusted to adjust the load at which the column-side bracket and the fastening portion detach.

Description

Technical Field

[0001] The present invention relates to a steering device.

Background Art

[0002] Patent Document 1 describes a steering device that is fixed to a bracket on the vehicle body via a fastening portion called a capsule, and when a predetermined load acts on the steering device, the steering device detaches from the fastening portion fixed to the vehicle body bracket.

[0003] The above steering device was developed for the purpose of protecting the driver from a secondary collision that occurs during a vehicle accident. That is, when the vehicle collides with something, the speed of the vehicle rapidly decreases, and due to inertia, the driver's body moves forward, and the driver's body may collide with the steering wheel and be injured. In the steering device of Patent Document 1, when the driver's body collides with the steering wheel and there is an input of a predetermined value or more to the steering device, the fastening portion and the steering device detach from the bracket on the vehicle body side, reducing the force acting on the driver's body.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] In the steering device described in Patent Document 1, the pressing portion is provided on one of the first and second members. The pressing portion contacts one surface of the edge of the column-side bracket. The other surface of the edge of the column-side bracket is in contact with the other of the first and second members, so that the column-side bracket is sandwiched between the first and second members. In Patent Document 1, it is stated that the pressing portion is pressed against the upper surface of the column-side bracket to generate a certain frictional force, which determines the disengagement load of the steering device. It is also stated that the frictional force is adjusted by changing the height of the cylindrical portion.

[0006] When adjusting the release load by adjusting the amount the pressing part protrudes toward the column-side bracket, there was a problem that if the amount the pressing part protruded became extremely small or extremely large, the appropriate release load could not be achieved. In addition, changing the height of the cylindrical part to adjust the fastening load caused the thickness of the fastening part to fluctuate, which caused problems in designing the layout of the parts.

[0007] The present invention aims to provide a steering device that can adjust the load at which the steering device detaches from the vehicle-side bracket when a secondary collision occurs, according to the required specifications. [Means for solving the problem]

[0008] A steering device that is fixed to a vehicle body bracket via a fastening portion, and when a predetermined load is applied to the steering device, the steering device disengages from the fastening portion fixed to the vehicle body bracket, the steering device having a column-side bracket fixed to the steering column, and the fastening portion being fastened so as to sandwich the column-side bracket, the fastening portion having a first member arranged to contact the edge of a notch provided in the column-side bracket from one side, a second member arranged to contact the edge of a notch provided in the column-side bracket from the other side, and a cylindrical portion disposed between the first member and the second member The steering device has the following features: the first member and the second member are integrated by hooking a fastening piece provided on one of the first member and the second member onto the other edge of the first member and the second member; one of the first member and the second member is provided with a pressing portion and a through hole adjacent to the pressing portion that penetrates the first member or the second member in the thickness direction; the pressing portion is shaped to contact the edge of the notch when the fastening piece is hooked onto the first member and the second member are fastened to the notch of the column-side bracket; and the steering device adjusts the load at which the column-side bracket and the fastening portion separate by adjusting the width of the through hole, thereby solving the above problem.

[0009] A method for manufacturing a steering device in which the steering device is fixed to a vehicle body bracket via a fastening portion, and when a predetermined load is applied to the steering device, the steering device detaches from the fastening portion fixed to the vehicle body bracket, the steering device having a column-side bracket fixed to a steering column, and the fastening portion being fastened so as to sandwich the column-side bracket, the fastening portion having a first member arranged to contact the edge of a notch provided in the column-side bracket from one side, a second member arranged to contact the edge of a notch provided in the column-side bracket from the other side, and a cylindrical portion disposed between the first member and the second member, the first part The material and the second member are integrated by hooking a fastening piece provided on one of the first and second members onto the other edge of the first and second members, and one of the first and second members is provided with a pressing portion and a through hole adjacent to the pressing portion that penetrates the first or second member in the thickness direction, and the pressing portion is shaped to contact the edge of the notch when the fastening piece is hooked onto and the first and second members are fastened to the notch of the column-side bracket, and the above problem can also be solved by a manufacturing method for a steering device which has a step of adjusting the load at which the column-side bracket and the fastening portion separate by adjusting the width of the through hole.

[0010] In the above steering device, the through hole is an elongated hole extending in the direction in which the steering device detaches, and the adjustment of the detachment load can be done by adjusting the width of the through hole at both ends of the elongated hole. Furthermore, in the method for manufacturing the above steering device, the through hole is an elongated hole extending in the direction in which the steering device detaches, and the step of adjusting the detachment load can be done by adjusting the width of the through hole at both ends of the elongated hole.

[0011] In the manufacturing method of the steering device described above, the step of adjusting the release load is provided with a shape corresponding to the through hole, and multiple dies with different widths for forming the through hole are prepared, and the width of the through hole can be adjusted by selecting the dies to be used according to the required release load.

[0012] The aforementioned die includes one die and the other die, and the width of the through holes at both ends of the elongated hole in one die can be made smaller than the width of the through holes at both ends of the elongated hole in the other die.

[0013] In the above-described method for manufacturing the steering device, the through-hole is an elongated hole extending in the direction in which the steering device detaches, and the through-hole can be formed by a plurality of dies including a first die that forms first through-holes at both ends of the elongated hole and a second die that forms second through-holes communicating with the through-holes at both ends. [Effects of the Invention]

[0014] According to the present invention, it is possible to provide a steering device that can adjust the load when the steering device detaches from the vehicle-side bracket in the event of a secondary collision, according to the required specifications. [Brief explanation of the drawing]

[0015] [Figure 1] This is a perspective view showing a steering device according to one embodiment attached to a vehicle body bracket. [Figure 2] Figure 1 is a perspective view showing the disassembled state. [Figure 3] Figure 1 is a side view of the steering device and the vehicle body bracket. [Figure 4] Figure 1 is a perspective view showing the column-side bracket and fastening portion. [Figure 5] Figure 4 is an exploded perspective view of the fastening mechanism. [Figure 6] Figure 2 is a plan view of the fastening portion fixed to the column-side bracket. [Figure 7] Figure 2 is a bottom view of the fastening part fixed to the column-side bracket. [Figure 8] This is a perspective view showing how the fastening part is secured to the column-side bracket using a fixing jig. [Figure 9]It is a side view showing a state where a fastening portion is fixed to a column side bracket using the jig. [Figure 10] It is a perspective view showing a state where a fastening portion is fixed to a column side bracket using the jig, and is a perspective view showing a process after FIGS. 8 and 9. [Figure 11] It is a side view showing a state where a fastening portion is fixed to a column side bracket using the jig, and is a side view showing a process after FIGS. 8 and 9. [Figure 12] It is a perspective view showing a state where a fastening portion is fixed to a column side bracket using the jig, and is a perspective view showing a process after FIGS. 10 and 11. [Figure 13] It is a side view showing a state where a fastening portion is fixed to a column side bracket using the jig, and is a side view showing a process after FIGS. 10 and 11. [Figure 14] It is a perspective view showing a state of another embodiment of the fastening portion as viewed from above. [Figure 15] It is a perspective view showing a state of another embodiment of the fastening portion as viewed from above. [Figure 16] It is a perspective view showing a state of another embodiment of the fastening portion as viewed from above. [Figure 17] It is a perspective view showing a state before forming a through hole in the first member. [Figure 18] It is a perspective view showing a state after forming a first through hole having a relatively small width W1 in the first member using a first mold. [Figure 19] It is a perspective view showing a state after forming a second through hole in the first member using a second mold. [Figure 20] It is a perspective view showing a state before forming a through hole in the first member. [Figure 21] It is a perspective view showing a state after forming a first through hole having a relatively large width W1 in the first member using a first mold. [Figure 22] It is a perspective view showing a state after forming a second through hole in the first member using a second mold.

Embodiments for Carrying Out the Invention

[0016] The following describes embodiments of the steering device of the present invention. The embodiments shown below are merely limited examples, and the technical scope of the present invention is not limited to the embodiments described herein.

[0017] [Steering system] Figures 1 to 13 show a steering device 1 according to the first embodiment. As shown in Figures 1 and 2, the steering device 1 of this embodiment is fixed to the vehicle body side bracket 15 via a fastening portion 2, and is configured such that when a predetermined load is applied to the steering column 11, the steering column 11 and the column side bracket 12 detach from the fastening portion 2 fixed to the vehicle body side bracket 15.

[0018] As shown in Figure 2, the steering device 1 is fixed to the vehicle body by passing a male screw through a hole provided to communicate with the column-side bracket 12 and the vehicle body-side bracket 15, and then screwing a female screw onto the male screw. More specifically, the first member 3 and the second member 4 that constitute the fastening portion 2 are provided with through holes 311 and 411, respectively. As shown in Figure 2, the steering device 1 is fixed to the vehicle body by inserting a male screw 13 through the through hole 311 of the first member 3, the through hole 411 of the second member 4, and the through hole 151 of the vehicle body-side bracket 15, and then screwing a female screw 14 onto the male screw 13. The edge portion of the through hole 411 of the second member 4 functions as the head of the male screw 13 or a seat for the female screw 14. The through hole 311 of the first member 3 and the through hole 411 of the second member 4 are located inside the notch 121 of the column-side bracket 12.

[0019] The steering device 1 includes a column-side bracket 12 fixed to the steering column 11 and the fastening portion 2 fastened so as to sandwich the column-side bracket 12.

[0020] The steering column 11 can adopt the same configuration as in the conventional design. The steering wheel is connected to the tip of the steering column 11 in a rotatable manner. The column-side bracket 12 is fixed to the steering column 11 so as to extend in a direction intersecting the steering column 11.

[0021] The column-side bracket 12 has a shape that extends in the vehicle width direction, and is a plate-like shape with the front end and rear end of the vehicle body bent downwards. A notch 121 is provided at the rear end of the column-side bracket 12. Multiple notches 121 are provided on the right and left sides of the steering column 11, and the shape is symmetrical left and right with respect to the steering column 11 as the axis. A fastening part 2 is fixed to each notch 121. The notch 121 has a recessed shape with a tapered portion that reduces the width of the front side of the vehicle body in a plan view.

[0022] As shown in Figure 5, the fastening portion 2 includes a first member 3 positioned to contact the edge of the notch 121 provided on the column-side bracket 12 from above, a second member 4 positioned to contact the edge of the notch 121 provided on the column-side bracket 12 from below, and a cylindrical portion 31 positioned between the first member 3 and the second member 4. In this embodiment, the cylindrical portion 31 and the first member 3 are integrally formed by burring.

[0023] The first member 3 and the second member 4 are integrated by hooking a fastening piece 32, provided on one of the first member 3 and the second member 4, onto the other edge of the first member 3 and the second member 4. In this embodiment, the fastening piece 32 is provided on the first member 3 and has a shape that is continuous with the base of the first member 3 via a bent portion 322 that is wider than the fastening piece 32. The fastening piece 32 is composed of a claw-shaped projection that protrudes toward the second member 4. The column-side bracket 12 is fixed by crimping it onto a receiving portion 42, which is provided on the second member 4 and consists of a notch that receives the fastening piece 32, so that the first member 3 and the second member 4 sandwich it.

[0024] One of the first member 3 and the second member 4 is provided with a pressing portion 33 and a through hole adjacent to the pressing portion 33 that penetrates the first member 3 or the second member 4 in the thickness direction. In this embodiment, the first member 3 is provided with the pressing portion 33 and the through hole 331.

[0025] The pressing portion 33 is shaped to contact the edge of the notch 121 when the latching piece 32 is latched and the first member 3 and the second member 4 are fastened to the notch 121 of the column-side bracket 12. In this embodiment, as shown in Figure 5, the pressing portion 33 has a curved beam shape formed by the through hole 331, which will be described later, before the pressing portion 33 is pressed against the edge of the notch 121. As shown in Figure 11, after the pressing portion 33 is pressed against the edge of the notch 121, the apex portion is crushed to be substantially flat, and the apex portion has a continuous inclined portion.

[0026] As shown in Figure 5, the first member 3 and the second member 4 are roughly rectangular in shape with their corners beveled in a plan view, and are roughly flat plate-like. The pressing portion 33 is curved in shape, protruding toward the edge of the column-side bracket 12, and is a beam-like portion provided along the longitudinal direction of the vehicle body. The through hole 331 is an elongated hole provided adjacent to the pressing portion 33 and is arranged along the longitudinal direction of the vehicle body. Both ends of the elongated hole are roughly arc-shaped through holes in a plan view.

[0027] The pressing portion 33 and the through hole 331 are positioned on the edges of the substantially rectangular first member 3 and the substantially rectangular second member 4 in the vehicle width direction. The latching piece 32 is positioned on the edges of the first member 3 and the second member 4 in the front-rear direction of the vehicle body.

[0028] To fix the fastening portion 2 to the column-side bracket 12, for example, a fixing jig 6 may be used, as shown in Figures 8 to 11. As shown in Figures 8 to 11, a member having a latching piece 32 is fixed on the jig 6 so that the latching piece 32 faces upward, and the notch 121 of the column-side bracket 12 and the member having a receiving portion 42 are placed on top of it. At this time, the latching piece 32 is made to fit into the receiving portion 42. In the example of Figure 8, the first member 3 is provided with a projection 32, so the first member 3 is positioned in contact with the jig 6, and the second member 4 having a receiving portion 42 is placed on top of the column-side bracket 12. As shown in Figures 10 and 11, when the locking piece 32 is crimped as shown in Figures 12 and 13 while applying a load in the direction of the arrow in Figure 10 so that the first member 3 and the second member 4 are brought closer together, the apex of the curved pressing portion 33 is crushed as shown in Figure 11, and the pressing portion 33 presses against the edge of the column-side bracket 12. With the first member 3 and the second member 4 fixed by crimping, a pressing force acts on the pressing portion 33 in the direction shown by the dashed line in Figure 10, that is, toward the second member 4. This pressing force is generated based on the elasticity and reaction force of the crushed pressing portion 33 trying to return to its original shape.

[0029] The first member 3 and the second member 4 are fixed together by crimping the latching piece 32 and engaging it with the receiving portion 42, so that the pressing portion 33 is pressed against the edge of the column-side bracket 12. The pressing portion 33 is fixed in this pressed state, which generates a predetermined frictional force between the fastening portion 2 and the column-side bracket 12. The frictional force can be adjusted by the amount the pressing portion 33 protrudes and the thickness of the cylindrical portion 31. The cylindrical portion 31 functions as a spacer that determines the distance between the first member 3 and the second member 4. By reducing the thickness of the cylindrical portion, the distance between the first member 3 and the second member 4 becomes shorter, and the frictional force can be increased. Alternatively, the frictional force can be increased by increasing the amount the pressing portion 33 protrudes.

[0030] The details of pressing the pressing portion 33 against the edge of the column-side bracket 12 are as follows. As shown in Figures 8 and 9, when the edge of the column-side bracket 12 is brought into contact with the top of the pressing portion 33 of the first member 3, and the second member 4 is placed on top of the column-side bracket 12 so that the receiving portion 42 and the latching piece 32 are aligned, a gap is formed between the upper end of the cylindrical portion 31 and the lower end of the second member 4.

[0031] As shown in Figures 10 and 11, when a load is applied in a direction that brings the first member 3 and the second member 4 closer together, the apex of the pressing portion 33 is pressed against the edge of the notch portion 12, causing the apex to be crushed, and the lower end of the second member 4 comes into contact with the upper end of the cylindrical portion 31, stopping the displacement of the first member 3 and the second member 4.

[0032] As shown in Figures 12 and 13, the first member 3 and the second member 4 are fixed together in an integrated state by crimping and deforming the tip of the latching piece so that it bends inward.

[0033] In the steering device 1 of the above embodiment, when an input is applied to the steering column 11, if the load is such that the fastening state can be maintained by the frictional force between the column-side bracket 12 and the fastening part 2, the fastening part 2 and the column-side bracket 12 are maintained in a fastened state. On the other hand, when an input is applied to the steering column 11, if the load exceeds the amount that can be maintained by the frictional force between the column-side bracket 12 and the fastening part 2, the column-side bracket 12 slides toward the front of the vehicle body relative to the fastening part 2 against the frictional force, and the fastening state between the column-side bracket 12 and the fastening part 2 is released. As a result, the steering column 11 and the steering column fixed to its tip become free, reducing injuries to the occupant when the occupant collides strongly with the steering wheel.

[0034] Each component of the steering device 1 is made of metal sheet material, which is formed by bending or pressing the metal sheet material.

[0035] In the steering device 1 according to the above embodiment, as shown in Figure 5, the first member 3 that contacts the column-side bracket 12 from above is provided with a pressing portion 33, a hooking piece 32, and a cylindrical portion 31, and the second member 4 that contacts the column-side bracket 12 from below is provided with a receiving portion 42. The configuration of the fastening portion 2 is not limited to this example and may be changed, for example, as shown in Figures 14 to 16.

[0036] In the example shown in Figure 14, the first member 3a is provided with a latching piece 32 and a cylindrical portion 31, and the second member 4a is provided with a through hole 431, a pressing portion 43 and a receiving portion 42. In this fastening portion 2a, the support member is the first member 3a, and the first member 3a receives the load of the pressing portion 43 provided on the second member 4a.

[0037] In the example shown in Figure 15, the first member 3b is provided with a latching piece 32, and the second member 4b is provided with a cylindrical portion 41, a through hole 431, a pressing portion 43, and a receiving portion 42. In this fastening portion 2b, the support member is the first member 3b, and the first member 3b receives the load of the pressing portion 43 provided on the second member 4b.

[0038] In the example shown in Figure 16, the first member 3c is provided with a latching piece 32, a pressing portion 33, and a through hole 331, and the second member 4c is provided with a receiving portion 42. The cylindrical portion 5 is configured as a separate annular member independent of the first member 3c and the second member 4c. In this fastening portion 2c, the support member is the second member 4c, and the second member 4c receives the load of the pressing portion 33 provided on the first member 3c. In the examples shown in Figures 14 to 16, the first member and the second member are fixed by crimping so that the first member is in contact with the jig 6.

[0039] [Manufacturing method for steering devices] The steering column 11, column-side bracket 12, or vehicle body-side bracket 15 that constitute the steering device described above can be manufactured by any method such as bending a metal sheet, pressing a metal sheet, pressing using a punching die, laser processing, or cutting with a cutting tool.

[0040] Furthermore, for example, the fastening parts 2, 2a, 2b, and 2c (hereinafter abbreviated as fastening parts 2 to 2c) can be formed by press working using a punching die, laser processing, cutting with a cutting tool, or press working using a press die for bending. The projection 32 is formed by bending. The cylindrical parts 31 and 411 may be formed by burring, or a cylindrical part 5 formed as a separate component may be fixed by welding or the like, as shown in the example in Figure 16.

[0041] When providing the through holes 331 and 431 in the fastening portion, the load at which the column-side bracket and the fastening portion separate can be adjusted by adjusting the width of the through holes 331 and 431. By increasing the width of the through holes 331 and 431, the frictional force by the pressing portions 33 and 43 can be reduced, and by decreasing the width of the through holes 331 and 431, the frictional force by the pressing portions 33 and 43 can be increased.

[0042] The through holes 331 and 431 are elongated holes that extend in the direction in which the steering device 11 detaches. The step of adjusting the load of detachment is preferably carried out by adjusting the width W1 of the through holes 81 and 83 at both ends of the through holes 331 and 431, as shown in Figures 18 and 21. By increasing the width W1, the frictional force of the pressing parts 33 and 43 can be reduced, and by decreasing the width W1, the frictional force of the pressing parts 33 and 43 can be increased.

[0043] The magnitude of the frictional force exerted by the pressing portions 33 and 43 can be changed not only by increasing the width W1, but also by increasing or decreasing the overall width of the through holes 331 and 431. However, if the overall width of the through holes 331 and 431 is increased, the overall width W2 of the pressing portions 33 and 43 will fluctuate, so for example, if the width W2 decreases, the durability of the fastening portions 2-2c will decrease. Furthermore, if the overall width of the through holes 331 and 431 is increased or decreased, the second mold 95 used when forming the elongated holes, as described later, cannot be shared, and the management of the die when manufacturing the steering device becomes complicated.

[0044] To adjust the width of the through holes 331 and 431, the width can be adjusted by cutting, laser processing, etc., but the width of the through holes 331 and 431 can be adjusted efficiently by using multiple dies. For example, as shown in Figures 17 to 22, to adjust the load at which the column-side bracket 11 detaches from the fastening portions 2 to 2c, multiple dies 9 are prepared, each having a shape corresponding to the through holes and forming through holes 331 and 431 with different widths. The width of the through holes 331 and 431 can be adjusted by selecting the die 9 to use according to the required detachment load and punching out the metal plate constituting the fastening portion.

[0045] For example, as shown in Figures 18 and 21, the die 9 can include one die 91 and the other die 92 that form through holes with different widths. The width of the through holes at both ends of the elongated hole formed by the one die 91 in Figure 18 is smaller than the width of the through holes at both ends of the elongated hole formed by the other die 92 in Figure 21. By forming the through holes using a die with a relatively small width, as in Figure 18, the frictional force of the pressing parts 33 and 43 can be increased. By forming the through holes using a die with a relatively large width, as in Figure 21, the frictional force of the pressing parts 33 and 43 can be decreased.

[0046] The through holes 331 and 431 that adjust the frictional force of the pressing parts 33 and 43 can be formed by a plurality of dies, including first dies 93 and 94 that form the first through holes 81 at both ends of the elongated hole, and a second dies 95 that form the second through holes 82 that communicate with the through holes at both ends, as shown in Figures 18, 19, 21 and 22. By punching out a metal plate using the first dies 93 and 94 that form the first through holes 81 and 83 at both ends of the elongated hole, and the second dies 95 that form the second through holes 82 that communicate with the through holes at both ends, it becomes possible to punch out the first through holes 81 and 83 and the second through holes 82 with high precision. For example, if a die is used in which the first die 93 or the first die 94 and the second die 95 are integrated, the metal plate may become difficult to cut in constricted portions where the punched shape is complex, and the metal plate may become distorted when pressed by the die. By punching out the metal plate multiple times using the first type 93, 94 and the second type 95, the metal plate becomes easier to cut as designed. The punching process using the first type 93, 94 and the punching process using the second type 95 may be performed in any order. Furthermore, by making the widths of the first type 93, 94 and the second type 95 approximately the same as the width of the middle of the elongated hole and the widths of both ends of the elongated hole, the frictional force of the pressing part can be increased compared to the examples in Figures 19 and 22. In this case, the use of the first type 93, 94 may be omitted, and the elongated hole may be formed using only the second type 95. Alternatively, the width of the first type 93, 94 may be made smaller than that of the second type 95 to further increase the frictional force of the pressing part.

[0047] In the example shown in Figure 19, which forms a relatively narrow first through-hole 81, and in the example shown in Figure 22, which forms a relatively wide first through-hole 83, the same width second mold 95 is used, allowing the second mold 95 to be shared. By sharing the second mold 95 for the second through-hole 82, it becomes unnecessary to use multiple second molds, simplifying mold management and the manufacturing process.

[0048] The above example illustrates a method for forming a through hole in the first member. When forming a through hole in the second member, the same method can be used. [Explanation of Symbols]

[0049] 15. Vehicle-side bracket 2 Fastening part 1. Steering system 121 Notch 3. First Member 3a First Member 3b 1st member 3c First member 4. Second Member 4a Second member 4b Second member 4c Second member 31 Cylindrical part 41 Cylindrical part 5. Cylindrical part 32 Latch piece 331 Through hole 431 Through hole 91 One type 92 The other type 81 First through hole 83 First through hole 82 Second through hole 93 Type 1 94 Type 1 95 Type 2

Claims

1. This steering device is fixed to a vehicle-side bracket via a fastening portion, and when a predetermined load is applied to the steering device, the steering device detaches from the fastening portion fixed to the vehicle-side bracket. The steering device has a column-side bracket fixed to the steering column and a fastening portion that is fastened so as to sandwich the column-side bracket. The fastening portion comprises a first member positioned to contact the edge of a notch provided on the column-side bracket from one side, a second member positioned to contact the edge of a notch provided on the column-side bracket from the other side, and a cylindrical portion positioned between the first member and the second member. The first member and the second member are integrated by hooking a fastening piece provided on one of the first member and the second member onto the other edge of the first member and the second member. One of the first and second members is provided with a pressing portion and a through hole adjacent to the pressing portion that penetrates the first or second member in the thickness direction. The pressing portion is shaped to contact the edge of the notch when the locking piece is locked in place and the first member and the second member are fastened to the notch of the column-side bracket. A steering device that adjusts the load at which the column-side bracket and the fastening part separate by adjusting the width of the through hole.

2. The through hole is an elongated hole that extends in the direction in which the steering device detaches. The steering device according to claim 1, wherein the adjustment of the load to be released is performed by adjusting the width of the through holes at both ends of the elongated hole.

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