GB2074641A

GB2074641A - Sun-cut Glass Clamping Device for Automobiles

Info

Publication number: GB2074641A
Application number: GB8014242A
Authority: GB
Original assignee: Individual
Current assignee: Individual
Priority date: 1980-04-30
Filing date: 1980-04-30
Publication date: 1981-11-04

Abstract

A sun-reducing glass 11 is secured by clamp 5 to a bar 8 fixed to a jaw of a clamp whose jaws 1, 2 are mutually located by pins and sockets and held together by closing spring 3 to grip a fixed pane (9). A spring 6 causes the joints of clamp 5 to grip the bar 8. <IMAGE>

Description

SPECIFICATION Sun-Cut Glass Clamping Device for Automobiles Background of the Invention There are three kinds of devices that are always installed in a vehicle as protection for the driver against the sting from light. One is a tinted belt-filter layer. On the windshield, one is the visor for the sun-blind and the other is a sun-reducing glass, installed 35 cm in front of the driver.

The device in this invention is used for clamping of this sun-reducing glass. The purpose installation of this sun-reducing glass is to dilute the intensity of light from high angles. In other words, most of the lights from the upper angle are filtered and the intensity of light is gradually reduced through the glass. At the angle of viewing, only a little of light is filtered so that the driver can see in front clearly. Current clamping devices have a common disadvantage. If the clamping device clips the fixing shaft firmly, then the turning is difficult. If it can be turned easily, then the clamp is movable during the vibration in driving, so that the position of sun-reducing glass is changed. This invention is designed to resolve this dissadvantage.Its improvement is that only a slight force is necessary to be applied in the turning of sun-reducing glass and when the sun-cut glass is not being turned, it uses the clamping force of the spring clip to hold it firmly. Its characteristics are the application and cooperation of the applied force from the lever principle and the clamping force through the reinforced spring clip.

Summary of the Invention The clamping device of this invention is an apparatus for holding sun-reducing glass in a vehicle that can be turned easily yet hold the glass firmly. It is designed with two, upper and lower clamping arms, and has a spring clip to clamp the clamping circular grooves of the clamping arms to a fixed shaft.

These two upper and lower clamping arms are is torms. Screws are set at the turning points of the arms to fix the distance between the turning points, and act as a pivot in a lever. When the spring clip at the left terminal is closed (i.e., the sun-reducing glass is not being turned). It form is like and the clamping arms clip the sun-reducing glass firmly. When force is applied to the sun-cut glass, the turning point (screw) acts as a pivot, opens the spring clip according to the lever principle. Then, the clamping is at the state. The clamping grooves do not hold the fix shaft and so, the sun-reducing glass can be easily turned to any desired position.

Brief Description of the Invention Fig. 1 is an illustration diagram of the holding clamp of the invention.

Fig. 2 is a sectional view of the holding clamp of this invention.

Fig 3 shows the turning point at the two clamping arms of this invention.

Fig. 4 is a three-quarter diagram of the clamping device of this invention shown in Fig. 3.

Fig. 5 is a sectional diagram of an application of the clamping device of this invention (at the pushing and pressing of sun-reducing glass).

Fig. 6 is a sectional diagram of an application of the clamping device of this invention (without pushing and pressing the sun-reducing glass).

Fig. 7 is a view of the whole invention.

At list of components and terms.

(1) Upper tongue (lea) Hollow space (1b) Hollow hold (inc) Hold (2) Lower tongue (2a) Hollow space (2b) Proturbant point (2c) Hold (3) Torsion spring (4) Guiding hollow space (5) Clamping arm (5a) Circular groove (5b) Clamping plane (5c) Proturbant terminal stop (sod) Declination (5e) Turning point (5f) Reinforce cam (6) Spring clip (7) Trough (8) Fixing shaft (8a) Carrier (9) Visor (10) Screw (10a) Screw opening (11) Sun-reducing glass Description of the Preferred Embodiment The whole structure of this invention includes a holding clamp that holds the visor 9 of an automobile and a clamping device that holds the sun-reducing glass 11.

The holding clamp is composed of upper tongue 1, lower tongue 2, U-shaped torsion spring 3 and a guiding hollow space 4 on the lower tongue 2.

The clamping device is composed of two clamping arms 5, spring clip 6 and screw 10.

As shown in Fig. 1, there is a hollow space 1 a for the holding of a torsion spring 3 on the upper tongue 1 and lower tongue 2 respectively. During the installation, insert the two protuberant points 2b to the two hollow holes 1 6 of the upper tongue 1 and then, pull in the torsion spring 3 from the rear to the front till the presenting hollow space 2a Fig. 2 shows this holding clamp holds the visor 9.

There is a guiding hollow space 4 on the lower tongue 2 for insert the carriers 8a (symmetrically formed right and left portions having two troughs 7 on each), a fixing shaft 8 is at the middle of these two carriers. This fixing shaft is for the installation of clamping device, and provides fixing or rotation.

Fig. 3 shows an embodimental diagram of the disengaging structure of the clamping device, in which two symmetric arms are the clamping arms 5. The structure at the inner lateral of the clamping arms 5 is: The left terminal is a circular groove 5a of the same diameter with the fixed shaft 8. On the right is a plane for the holding of sun-reducing glass 11. There are two protuberant terminal stops Sc on the clamping pian 5b which is near the circular groove 5a. On the right terminal of the clamping arm 5 is a declination Sd, whose outer end is large. The beginning of the declination 5d (right terminal of the clamping plane 5d is a turning point 5e in which a screw opening 1 0a is drilled on it.

On the outer lateral portion of the clamping arm 5, à spring clip 6 is inserted from the rear to form an engaging state. For inserting, one only has to pull and press the spring clip 6 forwardly. This is because when the spring clip 6 is in the clamping state, the surrounding curve is larger than 1800 (practically it is 2700) and therefore, it is quite difficult to pull the spring clip 6 out again. It is not necessary to remove the clip after instatation (of course) it, can be removed). In addition to the presetting position of the spring clip 6 on the outer lateral of the clamping arm 5, there are protuberant reinforce cams on the other three sides. These cam have the function of reinforcing and in addition, they, cause the spring clip 6 to be unable to move horizontally.

The internal diameter of the circular groove 5a of the aforesaid clamping arm is the same as the external diameter of the fixed shaft 8. When the spring clip 6 is clopped (i.e., the sun-reducing glass is not being turned), the clamping arms 5, because of the clamping force of the spring, clamp the fixed shaft 8 firmly. Therefore, the sun reducing glass 11 is immovable. Conversely, when the sun-reducing glass 11 is turned (at the pivot of the turning point, fixed by the locking of screw), the left terminal of the clamping arm 5 is opened, the spring clip 6 is opened and the clamping arms 5 do not clamp the fixing shaft 8 and so, one can turn the sun-cut glass to any desired position easily.When the applied force is stopped, the device is again at the clamping state and stays at the required position.

The purpose of the protuberant terminal stops is to make the sun-reducing glass form a definite angle against the clamping device. This is because when the sun-reducing glass 11 is held at two points, it only receives applied forces from these two points and the clamping device is movable. With these protuberant terminal stops, the clamping device is immovable because of this constraint When one pushes and pressed the sun-reducing glass, the sun-cut glass opens the inner lateral of the clamping arm upwards, the space between the upper and the lower declinations is as shown in Fig.

5. Because of the block of the sun-reducing glass, the clamping arms will not be opened anymore, (It is unnecessary to open it more).

The turning point is the intersection of the declination 5d and clamping place. There is a screw at this intersection and the purpose of setting this screw is to maintain a definite distance between the turning points that make it pivot effectively.

In conclusion, when this invention is adopted, after the visor is clipped, the sun-reducing glass is maintained at the actual position without regard to vibration of vehicle. In the turning, it will be easily turned because of the lever principle.

Claims

1. A device for attachment to an automobile visor for reducing sun glare comprising tongue means having separabie top and bottom sections which overlie and edge of the visor, said top section provided with at least two holes, said bottom, section having at least two protuberant points which register with the two holes of said top section when said tongue means engages a visor, a U-shaped torsion spring adapted to pressure said top and bottom sections together so as to retain said tongue means on said visor, clamping arms means attached to a sun-reducing glass having a spring clip, and means connecting said tongue means with said clamping arm means, including a carrier insert said tongue means, a fixing shaft fastened to said carrier and carried on said clamping arm and set into the guiding hollow of lower tongue means.

2. The device of claim 1 in which said clamping arm means comprises: symetrically formed top and bottom portions having a groove at one extremity thereof for receiving said fixing shaft, said spring clip biasing ends of said portions near said groove, an outwardly flared terminus remote from said groove, a hole proximate to said terminus, at least one proturberant stop near said groove where by when said sun-reducing glass is inserted into said clamping arm means at said terminus and up to said protuberant stop, screw means fasten said, glass to said clamping arm means at said hole, and a turning moment applied on said glass remote from the clamping means causes said glass to release the spring clip retention by leverage and is applied at the outwardly flared terminus acting as a fulcrum against said spring clip, so that said clamping means can rotate about said fixing shaft.

3. The device of claim 2 in which there are two of said tongue means and clamping arm means disposed on said visor and said sun reducing glass.

New Claims Filed on 30 April 1981 New or Amended Claims:-

1. Means for coupling a member to a shaft or rod, comprising: first and second clamping arms biased towards each other at one end thereof and being so shaped at said one end as to embrace said shaft or rod; said member being held between said arms both by said bias and by pivot means remote from said one end coupling one said arm to the other through said member; and the arrangement being such that leverage of said member about said pivot means as fulcrum is effective to separate said arms at said one end against the bias thereat.

5. For coupling a member to a shaft or rod, means substantially as herein before described with reference to and as shown in the accompanying drawings.