JP2510775Y2 - Wheel cover locking ring - Google Patents

Description

[Detailed description of the device] [Industrial applications]

The present invention relates to a locking claw urging ring used for a wheel cover of an automobile, and more particularly to a locking claw urging ring having a ring expansion / contraction adjusting device.

[Prior art]

Various methods are provided for fixing a wheel cover of an automobile to a wheel disc.
Among them, there is a type that uses a locking claw urging ring as one of the reliable methods of mounting. This is because one endless ring is engaged with the inside of the locking claws protrudingly provided around the back surface of the wheel cover body, and the engaging claws are urged radially outward by the ring, that is, each locking claw is Press strongly toward the hump part of the wheel disc,
It is like this. However, in this ring method, once the wheel cover is mounted on the wheel disc, the mounting is very reliable, but the mounting operation itself is not easy. That is,
When fitting the wheel cover onto the wheel disc, it is necessary to bend each locking claw once in the radial direction, but the ring urging each locking claw does not easily bend inward in the radial direction. Therefore, the mounting of the wheel cover is very forceful. Of course, if you use a flexible ring, this problem will be solved, but in that case, the wheel cover will come off easily after mounting,
The original purpose is not achieved.

[Problems to be solved by the device]

Therefore, the technical problem to be solved by the present invention is to use a split ring instead of the conventional endless ring, and to operate the device by interposing a ring expansion / contraction adjusting device between both ends of the split ring. The purpose is to make it easy to attach the wheel cover and to make sure that it is secure after attachment.

[Means for Solving the Problems]

In order to solve the above technical problem, the locking claw biasing ring of the wheel cover according to the present invention is constructed as follows. That is, the ring expansion / contraction adjusting device is provided between both ends of the split ring body. The ring expansion / contraction adjusting device has an end plate fixed to each end of the split ring body, and a first arm having one end pivotally connected to the first pivot point of one end plate and the other end having an operation knob. A second arm having one end pivotally connected to the second pivot point of the other end plate and the other end pivotally connected to the intermediate pivot point of the first arm;
Locking means for fixing the mutual positions of the first and second arms so as to maintain the expanded state where the first, third and second pivot points are aligned by operating the arms.

[Action / effect]

The locking claw urging ring having the above-described structure is attached to the inside of each locking claw of the wheel cover body as in the conventional case, and the wheel cover is mounted on the wheel disc in this state. At this time of mounting, the locking means is released. When the wheel cover is pushed against the wheel disc, each locking pawl flexes radially inward, resulting in the ring body attempting to contract. In this case, since the locking means is released, the first arm and the second arm can freely rotate at the first, second, and third pivot points, so that both ends of the split ring body can freely approach each other. can do. That is, the split ring can easily contract. Therefore, a large force is not required when mounting the wheel cover. On the other hand, once the wheel cover has been attached to the wheel disc, at that point, the knobs of the first arm are pushed in by the principle of leverage to straighten the pivot points of the first, second and third arms, that is, The diameter of the split ring is enlarged, and in this state, the relative positions of the first arm and the second arm are fixed by the locking means. As a result, the diameter of the split ring is surely expanded, and each locking claw can be reliably locked to the hump portion of the wheel disc.

【Example】

An embodiment of the present invention illustrated in FIGS. 1 and 2 will be described in detail below. FIG. 1 shows a state in which a locking claw urging ring is mounted inside each locking claw B of the wheel cover body A. In FIG. 1, a ring expansion / contraction adjusting device D is provided between both ends of the split ring body C, and this device is unlocked. On the other hand, FIG. 2 shows a state in which the ring expansion / contraction adjusting device D is locked. End plates 3 and 4 are fixed to the respective ends of the ring body C. The first end plate 4 has a first
One end of the arm 1 is pivotally attached by a pin 7. Let this pivot point be O ₁ . Further, one end of the second arm 2 is pivotally attached to the end plate 3 by a pin 7. This pivot point is O ₂ . Further, the other end of the second arm 2 has the first
It is pivotally attached to the midpoint of the arm 1 by a pin 7. This pivot point is O ₃ . A knob 1a is provided at the other end of the first arm 1. Further, a lock lever 5 is rotatably attached to the first arm 1 via a pin 7 as well. The lock lever 5 has a locking claw 5a at its lower end. On the other hand, a lock groove 2a is formed at a predetermined position of the second arm 2 corresponding to the lock lever 5. As shown in FIG. 1, when the lock lever 5 is released, the ring body C can be expanded and contracted. That is, when the wheel cover A is mounted on the wheel disc, the locking claw B tries to bend inward in the radial direction, and as a result, the ring body C tends to contract in diameter. In this case, the first arm 1 Since the second arm 2 freely rotates about each pin 7, both ends of the ring body C,
Therefore, the pair of end plates 3 and 4 can freely approach each other. When the wheel cover is completely attached, push the knob 1a of the first arm 1 in the direction of the arrow as shown in FIG.
The pivot points O ₁ , O ₂ and O ₃ are arranged substantially in a straight line, and in this state, the lock lever 5 is rotated in the arrow direction in order to fix the mutual positional relationship between the first arm 1 and the second arm 2. Then, the locking claw 5a is engaged with the lock groove 2a. As a result, the first arm 1 and the second arm 2 are fixed to each other. In addition,
Since the pushing operation of the knob 1a is a lever movement with the pivot point O ₁ as a fulcrum, a large force is not required. Further, when the knob 1a is sufficiently pushed in, the protruding piece 1b protruding from the first arm 1 contacts the end plate 4, and the protruding piece 2b protruding from the second arm contacts the end plate 3. Therefore, it is not pushed any further. As shown in FIG. 2, if the pivot points O ₁ , O ₃ , and O ₂ are arranged in a substantially straight line, the diameter of the ring body C is enlarged. Therefore, the locking claw B urged by the ring body C is reliably locked to the hump portion of the wheel disc to be mounted.

[Brief description of drawings]

FIG. 1 is a perspective view of an essential part showing a state in which a locking claw biasing ring according to an embodiment of the present invention is attached to a wheel cover body and is in an unlocked state, and FIG. 2 is a locking claw in FIG. It is a principal part side view which shows the locked state of a bias ring. A: wheel cover, B: locking claw, C: split ring body, D: ring expansion / contraction adjusting device, 1 ... first arm, 1a ... knob, 1b ... protruding piece, 2 ... second 2 arms, 2a
...... Lock groove, 2b ...... Projecting piece, 3 ...... End plate,
4 ... End plate, 5 ... Lock lever, 5a ... Locking claw, 7 ... Pin.

Claims (1)

(57) [Scope of utility model registration request] 1. A split ring body (C), comprising a ring expansion and contraction adjusting device (D) between both ends of the split ring main body (C). Has end plates (3, 4) fixed to their respective ends, and one end plate (4) has one end pivotally attached to the first pivot point (O ₁ ) and the other end having an operation knob (1a) One end of the first arm (1) and the second pivot point (O ₂ ) of the other end plate (3) are pivotally attached, and the other end is an intermediate pivot point (O ₂ ) of the first arm (1). By operating the second arm (2) pivotally attached to ₃ ) and the first arm (1), the first, third, and second pivot points (O ₁ , O ₃ , O ₂ ) are aligned. First to keep the extended state in line
Locking means for fixing the mutual positions of the second arms (5, 5a, 2
a) A locking pawl urging ring comprising: