Dust cover assembled bumper stopper

Abstract

A bumper stopper installed on the shock absorber of a vehicle to respond to the impact of a cylinder lifting or lowering in the vertical direction depending on the running state of the vehicle. The bumper stopper is constructed such that a cylindrical dust cover having an opening formed at the lower end thereof is connected to a buffer member formed of peaks and troughs. The buffer member has a through hole through which a cylinder and rod of a shock absorber passes via a connection plate so that the buffer member and the dust cover are integrated with each other. It prevents air from being compressed inside the buffer member, thereby preventing component damage due to high pressure. Also, it prevents abnormal noise from occurring in the process of contact and separation between the cylinder and the connection plate, thereby providing improved ride comfort.

Claims

1. A cylindrical dust cover assembled bumper stopper, comprising: the cylindrical dust cover having an opening formed at a lower end thereof being connected to a buffer member formed of a combination of peaks and troughs, the buffer member having a through hole, through which a cylinder and rod of a shock absorber passes, by means of a connection plate so that the buffer member and the cylindrical dust cover are integrated with each other; a plurality of linear reinforcement protrusions formed on an upper surface of the connection plate extending radially from a first boundary point with respect to the buffer member to a second boundary point with respect to the dust cover; a plurality of ring-shaped connection protrusions formed in a center on the upper surface of the connection plate connecting said plurality of linear reinforcement protrusions; an exhaust groove formed on inside of each linear reinforcement protrusion recessing upwards; and a connection groove formed on inside of each ring-shaped connection protrusion depressing upwards, so that respective exhaust grooves communicate with each other by the connection grooves.

Description

BRIEF DESCRIPTION OF DRAWINGS

(1) FIG. 1 is a cross-sectional view showing a state, in which a conventional bumper stopper with an integrated dust cover is installed on a shock absorber;

(2) FIG. 2 is a reference diagram showing part A of FIG. 1 in an enlarged view;

(3) FIG. 3 is a reference diagram for explaining the operational relationship between the conventional bumper stopper and a counterpart thereof;

(4) FIG. 4 is a perspective view showing a preferred embodiment of the bumper stopper proposed in the present invention;

(5) FIG. 5 is a reference perspective view showing a part of the bumper stopper proposed in the present invention;

(6) FIG. 6 is a cross-sectional view of the bumper stopper proposed in the present invention;

(7) FIG. 7 is a reference cross-sectional view showing a state, in which the bumper stopper proposed in the present invention is installed in a shock absorber;

(8) FIG. 8 is a reference diagram showing part B of FIG. 1 in an enlarged view; and

(9) FIG. 9 is a reference diagram for explaining the operational relationship between the bumper stopper proposed in the present invention and a counterpart thereof.

BRIEF EXPLANATION OF REFERENCE NUMERALS

(10) TABLE-US-00001 10: bumper stopper 20: buffer member 21: peaks 22: troughs 23: through hole 30: connection plate 31: linear reinforcement protrusion 31a: exhaust groove 32: ring-shaped connection protrusion 32a: connection groove 40: dust cover 41: opening

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT

(11) The present invention will now be described in detail with reference to the accompanying drawings in the present invention. First, it should be noted that, in the drawings, the same components or parts have the same reference signs as much as possible. In describing the present invention, a detailed description of related known functions or features is omitted in order to avoid obscuring the gist of the present invention.

(12) FIG. 4 is a perspective view showing a preferred embodiment of a bumper stopper 10 proposed in the present invention, and FIG. 5 is a reference perspective view showing a part of the bumper stopper 10 proposed in the present invention.

(13) As shown in FIG. 4 and FIG. 5, it could be appreciated that the present invention provides a bumper stopper 10 constructed such that a cylindrical dust cover 40 having an opening 41 formed at the lower end thereof is connected to a buffer member 20 formed of a combination of peaks 21 and troughs 22 and having a through hole 23, through which a cylinder C and rod L of a shock absorber 5 passes, by means of a connection plate 30 so that the buffer member 20 and the dust cover 40 are integrated with each other.

(14) A plurality of linear reinforcement protrusions 31 are formed on the upper surface of the connection plate 30 so as to extend radially from a boundary point S1 with respect to the buffer member 20 to a boundary point S2 with respect to the dust cover 40, and a plurality of ring-shaped connection protrusions 32 are formed in the center on the upper surface of the connection plate 30 so as to connect the linear reinforcement protrusions 31.

(15) The linear reinforcement protrusions 31 and ring-shaped reinforcement protrusions 32 provided on the upper surface of the connection plate 30 as mentioned above reinforce the strength of the connection plate 30 such that the responsiveness against the continuous contact (impact) with the cylinder C of the shock absorber 5 that is the counterpart is improved such that the bumper stopper 10 can be used for a long time without damage.

(16) FIG. 6 is a cross-sectional view of the bumper stopper 10 proposed in the present invention. As shown in FIG. 6, an exhaust groove 31a is formed on the inside of the linear reinforcement protrusion 31 so as to be recessed upwards, and a connection groove 32a is formed on the inside of the ring-shaped connection protrusion 32 so as to be depressed upwards, so that the respective exhaust grooves 31a communicate with each other by the connection grooves 32a.

(17) FIG. 7 is a reference cross-sectional view showing a state, in which the bumper stopper 10 proposed in the present invention is installed in the shock absorber 5. As shown in FIG. 7, the present invention is mounted in use between a spring retainer 7 and a spring seat 8 in the shock absorber 5, wherein the cylinder C and rod L having passed through the insertion hole 23 of the buffer member 2 is fixed to a mount bracket 6 and the upper end portion of the cylinder C is inserted to be installed through the lower end opening 41 of the dust cover 4, thereby forming the shock absorber 5.

(18) The bumper stopper 10 proposed in the present invention includes the exhaust groove 31a formed to be recessed upwards on the inside of the linear reinforcement protrusion 31 of the connection plate 30, which connects the buffer member 20 and the dust cover 40, and a connection groove 32a formed to be depressed upwards on the inside of the ring-shaped connection protrusion 32, so that the respective exhaust grooves 31a communicate with each other by the connection grooves 32a. The bumper stopper 10 proposed in the present invention secures the plurality of exhaust grooves 31a as means for discharging the air inside the buffer member 20 when the cylinder C of the shock absorber 5, which is inserted into the dust cover 40 of the bumper stopper 10, comes into contact with the inner surface of the connection plate 30, thereby discharging the internal air more quickly and smoothly by connecting the respective exhaust grooves 31a by the connection grooves 32a.

(19) FIG. 9 is a reference diagram for explaining the operational relationship between the bumper stopper 10 proposed in the present invention and a counterpart thereof. As shown in FIG. 9, the bumper stopper 10 presented in the present invention can fundamentally prevent the air compression phenomenon when the upper end portion of the cylinder C comes into contact with the inner surface of the connection plate 30 and the buffer member 20 is contracted so that the air inside the buffer member 20 is discharged through the exhaust groove 31a and the inner space of the buffer member 20 is sealed, prevent abnormal noise from occurring in the process of contact and separation between the cylinder C and the connection plate 30 by preventing the air compression phenomenon inside the buffer member 20, thereby improving riding comfort and relieving the anxiety of a driver, and prevent the air compressed inside the buffer member 20 from damaging the buffer member 20 and the connection plate 30.

(20) It would be apparent to a person skilled in the art, to which the present invention belongs, that the present invention described above is not limited to the embodiments and the accompanying drawings, but various permutations, modifications and alterations can be made without departing from the technical idea of the present invention.