JPH0682500U - Grease nipple protection device - Google Patents

Abstract

(57) [Abstract] [Purpose] An object of the present invention is to provide a grease nipple protection device for preventing damage due to interference with the road surface during traveling or the like. [Structure] A grease nipple (5) is provided inside a counterbore (51) of a center beam (1) main body, which is an equalizer beam, so that its tip does not protrude outside.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to the structure of a grease nipple protection device.

[0002]

[Prior art]

 As a conventional example, for example, in a vehicle having three axles, a rear front shaft 16, a rear central shaft 7, and a rear rear shaft 27, which are continuously arranged as shown in FIG. Is swingably attached to the frame 31 via the torque rod bracket 11. A beam hanger 6 is fixed to the lower part of the rear central shaft 7, and a center beam 1 is swingably supported by a center shaft 2 provided on the beam hanger 6. In addition, support holes for the beam pins 3 and 4 are provided at both front and rear ends of the center beam 1, and a greasing hole having a screw portion (not shown) is bored in the lower center of the shaft, and a grease nipple 5 is provided in this screw portion. The tip is attached so as to project downward from the outer shape of the center beam 1. A shackle 21 is swingably supported by a beam pin 4 at the rear end of the center beam 1. On the other hand, between two adjacent axles, between the rear front shaft 16 and the rear center shaft 7, and between the rear center shaft 7 and the rear rear shaft 27, there are equalizer shafts 13 and 23 fixed to the frame. There is no bracket. On the other hand, the A equalizer beam 12 is pivotally supported by the equalizer shaft 13, the rear end is connected to the front end of the center beam 1 via the beam pin 3, and the front end is swingable via the beam pin 14 and the beam hanger 15. The B equalizer beam 22 is connected to the rear front shaft, the B equalizer beam 22 is pivotally supported by the equalizer shaft 23, the front end is connected to the lower end of the shackle 21 via the equalizer pin 24, and the rear end is connected to the beam pin 25 and the beam hanger 26. It is swingably connected to the rear rear shaft 27. Further, the rear front shaft 16 is swingably attached to the frame 31 via the torque rod 17 and the torque rod bracket 11, and the rear rear shaft 27 is swingably attached to the frame 31 via the torque rod 28 and the torque rod bracket 29. In the figure, reference numerals 32, 33, 34 and 35 respectively represent a flat road surface and the rear center wheel, rear front wheel and rear rear wheel at that time, and 32 ', 33', 34 'and 35' respectively represent an uneven road surface. At that time, the rear center wheel, the rear front wheel, and the rear rear wheel are represented. 32a represents a road surface protrusion between the rear center left and right wheels, and this protrusion 32a shows a state where the protrusion 32a interferes with the grease nipple 5. ing . That is, as described above, in the conventional example, the grease nipple 5 is attached with the tip protruding downward from the outer shape of the center beam 1, so that the grease nipple has a risk of interference with the road surface.

[0003]

[Problems to be solved by the device]

 It is an object of the present invention to provide a grease nipple protection device for preventing damage due to interference with the road surface during traveling or the like.

[0004]

[Means for Solving the Problems]

 According to the present invention, the grease nipple is provided inside the counterbore of the center beam body of the equalizer beam so that the tip thereof does not come out to the outside.

[0005]

[Action]

 In the present invention, since the tip of the grease nipple is provided so as not to go out of the counterbore of the center beam body of the equalizer beam, there is no fear of interference between the grease nipple and the road surface.

[0006]

【Example】

 Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. 1, 2 and 3, the assembly of the ball bearing 40 and the socket 41 for supporting the same is inserted into the center beam 1 at the center portion of the center beam 1 and is inserted into the hole having an outer diameter D formed in the main body of the center beam 1. The assembly is locked to the center beam main body 1 by two sets of bolts 42, washers 43, and lock nuts 44. On the other hand, from the outer surface of the center beam main body 1 toward the center of the hole having the above-mentioned outer diameter D, there is a counterbore portion 53 and a screw portion on the side coaxial with the counterbore portion 53 and in contact with the counterbore portion 53 A greasing hole 52 is provided. The depth L of the spot facing portion 53 is larger than the protruding length L'when the nipple is screwed into the threaded portion.

[0007]

[Effect of device]

 As described above, according to the present invention, since the tip of the grease nipple is provided so as not to come out of the counterbore of the center beam body of the equalizer beam, there is no risk of interference between the grease nipple and the road surface.

[Brief description of drawings]

FIG. 1 is a side view of a center beam according to an embodiment.

FIG. 2 is a top view including a partial cross section of the embodiment.

FIG. 3 is a partially enlarged view of the embodiment.

FIG. 4 is a suspension configuration diagram of a conventional example.

[Explanation of symbols]

 1 ... Center beam 2 ... Center shaft 3 ... Beam pin 4 ... Beam pin 5 ... Grease nipple 6 ... Beam hanger 7 ... Rear central shaft 8 ... Torque rod 11 ...・ Torque rod bracket 12 ・ ・ ・ A equalizer beam 13 ・ ・ ・ Equalizer shaft 14 ・ ・ ・ Equalizer pin 15 ・ ・ ・ Beam hanger 16 ・ ・ ・ Rear front shaft 17 ・ ・ ・ Torque rod 21 ・ ・ ・ Shackle 22 ・ ・B equalizer beam 23 ... equalizer shaft 24, 25 ... equalizer pin 26 ... beam hanger 27 ... rear rear shaft 28 ... torque rod 29 ... torque rod bracket 31 ... frame 32 ... Flat road surface 32 '... Uneven road surface 32a ... Road surface convex portion 33 ... Rear middle on flat road Wheel 33 '... Rear central wheel on uneven road 34 ... Rear front wheel on flat road 34' ... Rear front wheel on uneven road 35 ... Rear rear wheel on flat road 35 '... Rear on uneven road Rear wheel 40 ... Ball bearing 41 ... Socket 42 ... Bolt 43 ... Washer 44 ... Lock nut 52 ... Greasing hole 53 ... Counterbore

Claims (1)

[Scope of utility model registration request] 1. A grease nipple protection device, characterized in that a grease nipple is provided inside a counterbore of a center beam body which is an equalizer beam so that its tip does not protrude outside.