Vehicle-mounted steering wheel table board

Abstract

The utility model discloses a vehicle-mounted steering wheel table plate which comprises a base plate and a base. The base plate is rotationally or fixedly connected to one end of the base. The at least two clamping arms are the same or different in structure, the clamping arms are detachably connected to the front end of the base in a front-back telescopic mode, clamping hooks are arranged at the front ends of the clamping arms, the clamping hooks are used for being connected to an automobile steering wheel in a clamped mode, and the clamping arms are moved back and forth so that the clamping space between the clamping hooks and the base can be adjusted; therefore, the substrate is installed and fixed. The two clamping arms capable of moving front and back are arranged, a user is allowed to adjust the clamping space between the base and the clamping hook so as to adapt to steering wheels of different vehicle types, the fixing effect is better through cooperation between the clamping hook and the base, and the market applicability and the use scene of the product are effectively enhanced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile vehicle-mounted accessories, in particular to a vehicle-mounted steering wheel table board. BACKGROUND

[0002] The vehicle-mounted steering wheel table board is a table board for fixing on a steering wheel to provide a driver with a place for placing articles or a notebook computer when the vehicle is stopped.

[0003] In the prior art, patent number ZL202321367372.9, a portable steering wheel table board for a vehicle cab, belongs to the technical field of automobile accessories and is used to solve the technical problem that the existing vehicle cab does not have a convenient table board, which is inconvenient for drivers to use in daily life. The portable steering wheel table board comprises a table board body and a fixing ring fixed on a steering wheel. The lower surface of the table board body is provided with a supporting rod, and the supporting rod is fixed with an adjusting piece. The outer side of the fixing ring is fixed with a fixing sleeve, the lower end of the supporting rod is inserted into the fixing sleeve, and the upper end of the fixing sleeve abuts against the lower surface of the adjusting piece. The table board body can be supported on the steering wheel, and the driver can use it for writing or eating, etc. The table board is convenient to store and can be used as a telephone card after being stored, which does not affect the driving behavior. The supporting height of the supporting rod can be adjusted so that the table board body can remain in a horizontal state when being installed on a steering wheel with different inclination angles, further facilitating the use of the driver. Although the above patent adjusts the supporting height of the supporting rod so that the table board body can remain in a horizontal state when being installed on a steering wheel with different inclination angles, the stability of the table board after installation is poor, and only light articles can be placed, which limits the use scenarios and needs to be further improved. SUMMARY

[0004] The utility model aims at providing a vehicle-mounted steering wheel table board to improve the poor applicability of the existing connecting and fixing mechanism.

[0005] The utility model is implemented as follows: a vehicle-mounted steering wheel table board comprises:

[0006] a base plate;

[0007] a base, the base plate is rotationally connected or fixedly connected to one end of the base;

[0008] at least two clamping arms with the same structure or different structures, the clamping arms are detachably and telescopically connected to the front end of the base, the front end of the clamping arm is provided with a clamping hook, the clamping hook is used for clamping on a steering wheel of a vehicle, and the clamping space between the clamping hook and the base is adjusted by moving the clamping arm forward and backward to form the installation and fixation of the base plate.

[0009] Further, the front end of the base is provided with two installation cavities for installing the clamping arms, and the installation cavities are provided with avoiding holes penetrating through the base;

[0010] The inner wall of the installation cavity is provided with first teeth, and the first teeth and the avoiding holes are located on the same wall surface of the installation cavity.

[0011] Further, the clamping arm comprises a sliding seat, the clamping hook is rotatably connected to the sliding seat, an arc-shaped groove body is arranged on the clamping hook, a flexible filler is fixedly arranged in the arc-shaped groove body, and the clamping arm is arranged in the installation cavity through the sliding seat.

[0012] Further, the sliding seat comprises a first button body and a first reset spring arranged inside the sliding seat, the first reset spring is arranged below the first button body, and the first reset spring is used for resetting the first button body.

[0013] Further, the upper surface of the first button body is provided with second teeth and a protruding top column, the second teeth and the protruding top column penetrate through the shell of the sliding seat, the second teeth are engaged with the first teeth on the installation cavity, and the top column penetrates through the avoiding hole and extends out of the shell of the base.

[0014] Further, the clamping arm comprises a rotating shaft, the clamping hook is fixedly connected to one end of the rotating shaft, and the clamping arm is rotatably connected to the base through the rotating shaft and the installation cavity.

[0015] Further, the base comprises a second reset spring, a fixed nut and an adjusting threaded rod, the second reset spring and the fixed nut are located inside the shell of the base, the rotating shaft and the clamping hook are provided with penetrating holes, the adjusting threaded rod penetrates through the penetrating hole on the clamping arm and penetrates through the corresponding inner wall of the installation cavity and is opposite to the fixed nut.

[0016] The second reset spring is sleeved on the adjusting threaded rod, the second reset spring is abutted with the rotating shaft on the clamping arm, and the elastic support for the forward and backward sliding of the clamping arm is formed.

[0017] Further, the base plate is provided with a supporting assembly, one end of the supporting assembly is connected with the base, the other end of the supporting assembly is connected with the base plate, and the horizontal supporting effect for the base plate is formed.

[0018] Further, the support assembly comprises a first connecting piece, a second connecting piece and a third connecting piece, one end of the first connecting piece is rotationally connected to the base, the other end of the first connecting piece is rotationally connected to the second connecting piece, one end of the third connecting piece is rotationally connected to the base plate, the third connecting piece is slidingly connected to the second connecting piece, the third connecting piece and the second connecting piece are provided with a locking mechanism, and the locking mechanism is used for locking and unlocking the front and back sliding positions of the third connecting piece.

[0019] Further, the locking mechanism comprises a second key body, a third reset spring and a third tooth, the second key body and the third reset spring are arranged in the housing of the second connecting piece, the third reset spring is arranged below the second key body, and the third reset spring is used for reset pressing of the second key body.

[0020] The second key body is the same in structure as the first key body, the third tooth is located on the housing of the third connecting piece, and the third tooth is arranged in correspondence with and engaged with the second tooth on the second key body.

[0021] Compared with the prior art, the utility model has the advantages that:

[0022] 1、The utility model discloses a two can move's card arm is arranged, and the user is allowed to adjust the clamping space between the base and the card hook, and the steering wheel of different vehicle models is adapted, and moreover, the cooperation between the card hook 32 and the base is utilized, and the fixing effect is better, and the market applicability and use scene of the product are effectively enhanced.

[0023] 2、The utility model discloses a support assembly, and the horizontal support of the support assembly to the base plate is utilized to increase the stability of the base plate, and the base plate is rotationally connected to the base, and through the adjustment of the support assembly, the control of the pitch angle of the base plate can be realized, thereby optimizing the user experience. ACCURACY OF DRAWINGS

[0024] Figure 1 It is the use state diagram of the whole installation of the utility model embodiment one on the steering wheel.

[0025] Figure 2 It is the whole structure schematic diagram of the utility model embodiment one.

[0026] Figure 3 It is the structure schematic diagram of the card arm in the utility model embodiment one.

[0027] Figure 4 It is the structure schematic diagram of the mounting cavity in the utility model embodiment one.

[0028] Figure 5 It is the internal structure schematic diagram of the card arm in the utility model embodiment one.

[0029] Figure 6 is the structural schematic diagram of the clamping arm in the second embodiment of the utility model;

[0030] Figure 7 is the installation schematic diagram of the clamping arm in the second embodiment of the utility model;

[0031] Figure 8 is the structural schematic diagram of the support assembly in the third embodiment of the utility model;

[0032] Figure 9 is the partial structural enlarged schematic diagram of the support assembly in the third embodiment of the utility model; Figure 8

[0033] Figure 10 is the exploded view of the support assembly in the third embodiment of the utility model;

[0034] Figure 11 is the structural schematic diagram of the key body in the first and third embodiments of the utility model. DETAILED DESCRIPTION

[0035] In the utility model, unless another explicit provision and limitation, the terms "installation", "connection", "connect", "fix" and so on should be broad sense understanding, for example, can be fixed connection, also can be detachable connection, or integral; can be mechanical connection, also can be electrical connection; can be direct connection, also can through intermediate medium indirectly connect, can be two element inside's intercommunication or two element's interaction relationship. For ordinary skilled in the art, can understand the concrete meaning of above-mentioned term in the utility model according to specific circumstances.

[0036] The following is further explained in conjunction with the drawings and specific embodiments:

[0037] Embodiment one

[0038] As shown in Figures 1-5 And Figure 11 A kind of vehicle-mounted steering wheel table board, including: base plate 1;Base 2, base plate 1 rotationally connected or fixedly connected in the base 2 one end;At least two structures same or different clamping arms 3, in the utility model, base plate 1 is rotationally connected on base 2 by pivot, base plate 1 rotates up and down relative to base 2, the structure of two clamping arms 3 is same, clamping arm 3 is detachable and can be forward and backward telescopic connection in the front end of the base 2, the front end of clamping arm 3 is provided with clamping hook 32, clamping hook 32 is used to be clamped on the car steering wheel, by moving the clamping arm 3 forwards and backwards, to adjust the clamping space between clamping hook 32 and base 2, form the installation fixed of base plate 1;

[0039] ​The front end of the base 2 is provided with two installation cavities 21 for installing the clamping arm 3. The installation cavities 21 are rectangular cavities or polygonal cavities or cavities of any shape. The two installation cavities 21 are located on the left and right sides of the front end of the base 2. An arc-shaped avoiding slot 24 is arranged between the two installation cavities 21. The arc-shaped avoiding slot 24 is symmetrically arranged at two ends. A non-slip rubber pad is arranged in the arc-shaped avoiding slot 24. An avoiding hole 22 is arranged in the base 2 and penetrates the installation cavity 21. The avoiding hole 22 is located on the top wall of the installation cavity 21. The avoiding hole 22 is a rectangular hole with a certain length. The avoiding hole 22 is arranged in a longitudinal direction, so as to facilitate the forward and backward movement of the first button body 33. A first tooth 23 is arranged on the inner wall of the installation cavity 21. The first tooth 23 and the avoiding hole 22 are located on the same wall surface of the installation cavity 21. The clamping arm 3 comprises a sliding seat 31. A clamping hook 32 is rotatably connected to the sliding seat 31. The sliding seat 31 is matched with the installation cavity 21. The clamping arm 3 has an overall L-shaped structure. An arc-shaped groove body 321 is arranged on the clamping hook 32. The arc-shaped groove body 321 is a spiral arc-shaped groove body, so as to be matched with the annular handle of the steering wheel. The arc-shaped groove body 321 is matched with and closely attached to the annular handle on the steering wheel. A flexible filler is fixedly arranged in the arc-shaped groove body 321. The flexible filler is any one of flexible silica gel, flexible plastic or cloth. The flexible filler prevents the clamping hook 32 from scratching the leather wrapped on the outer surface of the steering wheel. The clamping arm 3 is arranged in the installation cavity 21 through the forward and backward sliding of the sliding seat 31. The sliding seat 31 comprises a first button body 33 and a first reset spring 34 arranged in the shell of the sliding seat 31. The shell of the sliding seat 31 comprises an upper shell 311 and a bottom shell 312. The bottom shell 312 is detachably connected to the upper shell 311 through screws or buckles, so as to assemble the first button body 33 and the first reset spring 34. The upper shell 311 and the bottom shell 312 have a containing cavity. The first button body 33 and the first reset spring 34 are arranged in the containing cavity. The top end of the first reset spring 34 is in contact with the bottom of the first button body 33. The bottom end of the first reset spring 34 is in abutment with the bottom of the containing cavity. The first button body 33 is up and down pressingly connected to the sliding seat 31. The first reset spring 34 is arranged below the first button body 33. The first reset spring 34 is used for the press reset of the first button body 33. The upper surface of the first button body 33 is provided with a second tooth 331 and a protruding top column 332. The second tooth 331 and the protruding top column 332 penetrate the shell of the sliding seat 31. The second tooth 331 is engaged with the first tooth 23 on the installation cavity 21. The top column 332 penetrates the avoiding hole 22 and extends out of the shell of the base 2. When a user needs to move the clamping arm 3 forward or backward, the user only needs to press the top column 332 on the first button body 33. The first reset spring 34 is compressed and deformed under the pressing force. At the same time, the first button body 33 slides downward. The second tooth 331 on the first button body 33 is disengaged from the first tooth 23 in the installation cavity 21. At this time, the clamping arm 3 is in an unlocked state. The clamping arm 3 can slide forward and backward along the length direction of the installation cavity 21 or be pulled out of the installation cavity 21.The clamping arm 3 is disassembled to facilitate the overall storage. When the user releases the first button body 33, the first reset spring 34 is reset, the first button body 33 slides upward to return to the initial state, the second tooth 331 on the first button body 33 is engaged with the first tooth 23 inside the mounting cavity 21, and the locking state of the clamping arm 3 is formed. The length of the avoiding hole 22 is the distance of the forward and backward movement of the clamping arm 3. When the clamping arm 3 moves backward, the clamping hook 32 on the clamping arm 3 is away from the base 2, and the clamping space between the clamping hook 32 and the base 2 is increased. When the clamping arm 3 moves forward, the clamping hook 32 on the clamping arm 3 is close to the base 2, and the clamping space between the clamping hook 32 and the base 2 is reduced.

[0040] In this way, by setting two clamping arms 3 that can move forward and backward, the user can adjust the clamping space between the base 2 and the clamping hook 32 on the clamping arm 3 to adapt to different types of steering wheels. Moreover, the clamping hook 32 and the base cooperate better, the fixing effect is better, and the market applicability and use scenarios of the product are effectively enhanced.

[0041] Embodiment Two

[0042] As Figure 6 and Figure 7The improvement of the embodiment lies in that the clamping arm 3 comprises a rotating shaft 20, a clamping hook 32 is fixedly connected to one end of the rotating shaft 20, the clamping arm is rotatably connected with the base 2 through the rotating shaft and the mounting cavity, the base 2 comprises a second reset spring 35, a fixed nut 36 and an adjusting threaded rod 37, the second reset spring 35 and the fixed nut 36 are located inside the shell of the base 2, the fixed nut 36 is fixedly installed at the rear of the mounting cavity 21, the rotating shaft 20 and the clamping hook 32 are provided with through holes, the adjusting threaded rod 37 penetrates through the through holes and is opposite to the fixed nut 36 through the cavity wall of the corresponding mounting cavity 21, the front end of the adjusting threaded rod 37 is provided with external threads of a certain length, the external threads are matched with internal threads on the fixed nut 36, the adjusting threaded rod 37 is threadedly connected with the fixed nut 36, and the rear end of the adjusting threaded rod 37 is a twisting handle; the second reset spring 35 is sleeved on the adjusting threaded rod 37, the front end of the second reset spring 35 is abutted against the rotating shaft 20 on the clamping arm 3, and the rear end of the second reset spring 35 is abutted against the inner wall of the corresponding mounting cavity 21, so that elastic support is formed on the front and rear sliding of the clamping arm 3; in the embodiment, the mounting cavity 21 is a cylindrical cavity, the rotating shaft 20 is matched with the mounting cavity 21, and the rotating shaft 20 is inserted into the mounting cavity 21; when the user needs to move the base plate 1 forward and backward, the adjusting threaded rod 37 can be twisted counterclockwise or clockwise, under the pushing force or pulling force of the adjusting threaded rod 37, the clamping arm 3 moves forward and backward along the length direction of the mounting cavity 21, for example, when the clamping arm 3 moves backward, the clamping hook 32 on the clamping arm 3 moves away from the base 2, and the clamping space between the clamping hook 32 and the base 2 is increased; when the clamping arm 3 moves forward, the clamping hook 32 on the clamping arm 3 moves close to the base 2, and the clamping space between the clamping hook 32 and the base 2 is reduced; when the clamping arm 3 moves to the innermost side of the base 2, the second reset spring 35 is in a compressed state; when the adjusting threaded rod 37 is twisted counterclockwise or clockwise, the clamping arm 3 automatically moves forward under the reset force of the second reset spring 35; after the adjusting threaded rod 37 is completely separated from the fixed nut 36, the clamping arm 3 can be disassembled, and the adjustment and disassembly and assembly are very convenient.

[0043] Embodiment three

[0044] As Figures 8-11As shown, the substrate 1 is provided with a support assembly 11, one end of the support assembly 11 is connected with the base 2, the other end of the support assembly 11 is connected with the substrate 1, forming a horizontal support effect on the substrate 1, the support assembly 11 includes a first connecting piece 100, a second connecting piece 101 and a third connecting piece 102, one end of the first connecting piece 100 is rotatably connected on the base 2, the other end of the first connecting piece 100 is rotatably connected on the second connecting piece 101, one end of the third connecting piece 102 is rotatably connected on the substrate 1, the third connecting piece 102 is slidably connected on the second connecting piece 101, the third connecting piece 102 and the second connecting piece 101 are provided with a locking mechanism, the locking mechanism is used for locking and unlocking the front and rear sliding position of the third connecting piece 102, the locking mechanism includes a second button body 30, a third reset spring 40 and a third tooth 50, the second button body 30 and the third reset spring 40 are arranged inside the shell of the second connecting piece 101, the shell of the second connecting piece 101 includes a top shell 1011 and a lower shell 1012, the top shell 1011 is detachably connected on the lower shell 1012 by screws or buckles, the inside of the top shell 1011 and the lower shell 1012 has a sliding cavity with a certain length, one end of the third connecting piece 102 is inserted into the sliding cavity, the third reset spring 40 is arranged below the second button body 30, the third reset spring 40 is used for the pressing reset of the second button body 30; the structure of the second button body 30 is the same as that of the first button body 33, the third tooth 50 is located on the shell of the third connecting piece 102, the third tooth 50 is correspondingly arranged and engaged with the second tooth 331 on the second button body 30, in this embodiment, the bottom of the third connecting piece 102 is provided with a certain depth and length of the avoidance slot 1021, the middle of the avoidance slot 1021 is provided with a rectangular via hole 1022 along the length direction, the third tooth 50 is uniformly arranged on the opposite sides of the rectangular via hole 1022, the second button body 30 is located in the avoidance slot 1021, the top column 332 on the second button body 30 passes through the rectangular via hole 1022 and extends out of the shell of the third connecting piece 102, when the second tooth 331 on the second button body 30 is engaged with the third tooth 50 on the third connecting piece 102, it is the locked state of the third connecting piece 102, when the user needs to adjust the pitch angle or the horizontal state of the substrate 1, only needs to press the second button body 30, when the second tooth 331 on the second button body 30 is disengaged from the third tooth 50 on the third connecting piece 102, at this time, it is the unlocking state of the third connecting piece 102, at this time, the user moves the third connecting piece 102 forward and backward, so that the substrate 1 rotates up and down, to adjust the horizontal state of the substrate 1;

[0045] Thus, the utility model discloses through setting up support subassembly 11, utilize support subassembly 11 to the horizontal support of base plate 1 to increase the stability of base plate, and, base plate 1 is pivotally connected on base 2, through the adjustment of support subassembly 11, can realize the control of base plate 1 pitch angle, to optimize user experience.

[0046] Working principle;The utility model discloses a base plate 1, base 2 and two clamping arms 3 that are arranged on base 2 left and right, when using, first through pressing first button body 3 unlock clamping arm 3 or loosening adjusting screw rod 37, move clamping arm 3 to the rear to the appropriate position, at this time, the clamping hook 32 on clamping arm 3 is away from base 2, and enough installation space is reserved, rotate the clamping hook 32 on clamping arm 3, the arc-shaped recess body 321 on two clamping hooks 32 are aligned with the annular handle back of steering wheel and are clamped, the corresponding front surface of annular handle on steering wheel and arc-shaped avoiding groove 24 on base 2 are contacted, then push clamping arm 3 or tighten adjusting screw rod 37, clamping arm 3 moves to the direction of base 2, and the clamping space between clamping hook 32 and base 2 reduces, until clamping hook 32 firmly clamps the annular handle of steering wheel, forms the clamping state of clamping hook 32 and base 2 to automobile steering wheel, completes the preliminary installation and fixation of vehicle-mounted steering wheel table board, then, through adjusting third connecting piece 102, make first connecting piece 100 contact with automobile steering wheel, form the lifting support state of base plate 1, and the user can adjust the forward and backward moving distance of third connecting piece 102, thereby adjusting the horizontal support state of support subassembly 11 to base plate 1, also can move clamping arm 3 forward and backward to increase the longitudinal containing space of base plate 1, can prevent the article placed on base plate 1 from being contacted with steering wheel.

[0047] In conclusion, the utility model discloses through setting up two can move forward and backward clamping arm 3, and allow the user to adjust the clamping space between base 2 and clamping hook 32, to adapt to the steering wheel of different vehicle models, and, utilize the cooperation between clamping hook 32 and base, and its fixed effect is better, effectively enhanced the market applicability and use scene of product;

[0048] Utilize support subassembly 11 to the horizontal support of base plate 1 to increase the stability of base plate, and, base plate 1 is pivotally connected on base 2, through the adjustment of support subassembly 11, can realize the control of base plate 1 pitch angle, to optimize user experience.

[0049] The above is only the preferred implementation of the utility model, and is not used to limit the utility model, for the person skilled in the art, the utility model can have various changes and changes. Any modification, equivalent replacement, improvement etc. that is made within the spirit and principle of the utility model should be included in the protection scope of the utility model.

Claims

1. A vehicle-mounted steering wheel table, characterized in that, The utility model relates to a kind of automobile steering wheel mounting device, including: Substrate; Base, the substrate is rotatably connected or fixedly connected in one end of the base; At least two structures are the same or different in structure and are connected in the front end of the base, the front end of the clamping arm is provided with clamping hook, the clamping hook is used to be clamped on the automobile steering wheel, the clamping arm is moved forward and backward, to adjust the clamping space between clamping hook and base, form the installation and fixation of substrate.

2. The steering wheel desk plate according to claim 1, characterized in that, The front end of the base is provided with two installation cavities for installing the clamping arm, and the base is provided with a relief hole through the installation cavity. The inner wall of the installation cavity is provided with first teeth, and the first teeth and the relief hole are located on the same wall surface of the installation cavity.

3. The steering wheel desk plate according to claim 1, characterized in that, The clamping arm includes a sliding seat, the clamping hook is rotatably connected to the sliding seat, the clamping hook is provided with an arc-shaped groove body, a flexible filler is fixedly arranged in the arc-shaped groove body, and the clamping arm is slidably arranged in the installation cavity through the sliding seat.

4. The steering wheel desk plate according to claim 3, characterized in that, The sliding seat includes a first button body and a first return spring arranged inside the sliding seat, the first return spring is arranged below the first button body, and the first return spring is used for the pressing reset of the first button body.

5. A steering wheel desk plate according to claim 4, wherein, The upper surface of the first button body is provided with second teeth and a protruding top column, the second teeth and the protruding top column penetrate the shell of the sliding seat, the second teeth are engaged with the first teeth on the installation cavity, and the top column penetrates the relief hole and extends out of the shell of the base.

6. A steering wheel desk plate according to claim 5, wherein, The clamping arm includes a rotating shaft, the clamping hook is fixedly connected to one end of the rotating shaft, and the clamping arm is rotatably connected to the base through the rotating shaft and the installation cavity.

7. A steering wheel desk plate according to claim 6, wherein, The base includes a second return spring, a fixed nut and an adjusting threaded rod, the second return spring and the fixed nut are located inside the shell of the base, the rotating shaft and the clamping hook are provided with through holes, the adjusting threaded rod penetrates the through hole on the clamping arm and penetrates the corresponding inner wall of the installation cavity and is opposite to the fixed nut. The second return spring is sleeved on the adjusting threaded rod, the second return spring is abutted with the rotating shaft on the clamping arm, and the elastic support for the forward and backward sliding of the clamping arm is formed.

8. A steering wheel desk plate according to claim 7, wherein, The substrate is provided with a supporting assembly, one end of the supporting assembly is connected with the base, the other end of the supporting assembly is connected with the substrate, and the horizontal supporting effect of the substrate is formed.

9. A steering wheel desk plate according to claim 8, wherein, The supporting assembly includes a first connecting piece, a second connecting piece and a third connecting piece, one end of the first connecting piece is rotatably connected to the base, the other end of the first connecting piece is rotatably connected to the second connecting piece, one end of the third connecting piece is rotatably connected to the substrate, the third connecting piece is slidably connected to the second connecting piece, the third connecting piece and the second connecting piece are provided with a locking mechanism, and the locking mechanism is used for locking and unlocking the position of the third connecting piece sliding forward and backward.

10. The steering wheel desk plate according to claim 9, characterized in that, The locking mechanism includes a second button body, a third return spring and third teeth, the second button body and the third return spring are arranged inside the shell of the second connecting piece, the third return spring is arranged below the second button body, and the third return spring is used for the pressing reset of the second button body. The second key body has the same structure as the first key body, and a third tooth is arranged on the shell of the third connecting member and is in engagement with the second tooth on the second key body.

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