JPH0535527Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field]

The present invention relates to an automatically retractable power supply pole device that is installed on a vehicle as a corner pole or the like.

[Conventional technology]

Conventionally, there has been an automatic telescoping power supply pole device as described above, as disclosed in Japanese Utility Model Application Laid-Open No. 60-192313. This automatic telescopic power supply pole device is shown in Figure 4.
As shown in FIG. 5, a telescopic multi-stage pole 3 has an electric component 2 such as a lamp attached to the tip pole 1.
A drive cord 4 is inserted into the telescopic multi-stage pole 3 and has its tip connected to the tip pole 1, and has a power supply core wire 4a buried therein, and a drive for reciprocating the drive cord 4 in the longitudinal direction. 5 and a protrusion 6a fitted to the lower end of the inner pole and fixed by caulking or the like, and a cylindrical spring or a plurality of spring pieces etc. which are slidably pressed against the inner peripheral surface of the pole adjacent to the outside. Elastic member 6 and base pole 7
The protrusion 6a is made to protrude from the inner circumferential surface of the pole 1, 9, 10 made of a pipe material on which the elastic member 6 is provided. As shown in FIG. 5, the automatic telescopic power supply pole device configured as described above has the structure that when the telescopic multi-stage pole 3 is shortened, the protrusion 6a of the elastic member 6 provided on the outer pole is placed on the protrusion 6a of the inner adjacent pole. The lower end is abutted and supported.

[Problem that the invention attempts to solve]

When the automatic telescoping power supply pole device as described above is installed, for example, on the bumper of a car, it is installed in a limited narrow space, so there is a possibility that the tip of the tip pole 1 may hit a part of the vehicle body or accidentally touch the tip pole 1. When the telescopic multi-stage pole 3 is dropped with the end pole facing downward, the tip pole 1
, an impact force (external force) is applied to the telescopic multi-stage pole 3 that goes beyond the normal shortened state and goes further toward the shortened side, causing the protrusion 6a of the elastic member 6 attached to the next-stage pole 9 and below to inward. The impact force is transmitted from the lower end of the adjacent pole, crushing or damaging the protrusion 6a, and as a result, the tip pole 1 falls off or the pole comes off when the telescopic multi-stage pole 3 is extended. If the tip pole 1 falls off, the clutch of the drive unit 5 operates after the telescopic multi-stage pole 3 is attached to a bumper, etc., but the telescopic multi-stage pole 3 does not extend or contract or does not extend or contract. In addition, the sliding force when extending and contracting the pole may not be obtained properly, and the damaged protrusion 6a of the elastic member 6 may damage the outer surface of the pole, shortening the life of the pole and damaging the appearance of the pole. There was a problem. Although such problems are unlikely to occur in multi-stage telescoping rod antennas for televisions and radios, or automobile antennas with relatively wide mounting sections, they often occur in power feeding pole devices such as corner poles. In addition, in the conventional power supply pole device described above, the material of the elastic member is brass, but the strength of the protrusion can be increased by making the material stainless steel, but the impact force may be large in some cases. On the other hand, changing the material of the elastic member cannot prevent the above-described collapse or damage to the protrusion. The present invention solves the above-mentioned problems, such as crushing and damage of the elastic member due to downward facing of the end pole, falling or collision during installation work or transportation, malfunction of telescopic multi-stage pole due to these, The purpose of this invention is to provide an automatically retractable power supply pole device that can prevent damage to the outer surface with a simple structure and high productivity.

[Means to solve the problem]

In order to achieve this purpose, the automatic telescopic power feeding pole device for vehicle equipment of the present invention has a telescopic multi-stage pole with electrical components attached to the tip pole, a hole formed in the inner pole that protrudes toward the center, and A hollow protrusion is formed in a part of the peripheral wall, an elastic member is slidably pressed against the pole located on the outside, a base member is fixed to the lower end of the base pole, and the tip pole is attached to the base member. An annular stopper is provided at the lower end, the upper end of the base member, or both, and the length of the stopper in the pole axial direction is the same as the length from the upper end surface of the base member when the telescopic multi-stage pole is shortened. The distance is equal to or longer than the distance to the upper surface of the projection of the elastic member provided on the step pole, and the outer diameter is smaller than the diameter of the circle formed by the inner edge of the projection of the elastic member provided on the next step pole. It is characterized by

[Effect]

In the present invention, a stopper fixed to at least one of the tip pole and the base member is interposed between the tip pole and the base member. When the telescopic multi-stage pole is in the shortened state, this stopper passes through a protrusion of an elastic member provided on the next-stage pole and comes into contact with the mating member. When this automatic telescopic power feeding pole device is attached to the bumper of a car or transported, even if an impact force is applied to the tip pole to further shorten the telescopic multi-stage pole beyond its normal shortened state,
Impact force is no longer transmitted from the lower end of the adjacent pole to the protrusion of the elastic member attached to the poles below the next stage pole, which eliminates crushing and damage to the protrusion, and also prevents the conventional power supply as described above. The structure is simple as it is only necessary to add a stopper to the pole device.

【Example】

Hereinafter, embodiments of the present invention will be described with reference to the drawings. FIG. 1 shows one embodiment, and in FIG. 1, the same reference numerals as in FIGS. 4 and 5 indicate corresponding parts. In this embodiment, a stopper 1 is provided at the lower end of the tip pole 1.
1 are integrally provided to protrude downward. Stoppa 11
is a center hole 11a into which the drive cord 4 is loosely inserted.
is formed over the entire length, and the length L protruding downward from the lower end of the tip pole 1 is equal to the distance between the upper end surface of the base member 8 when the telescopic multistage 3 is shortened and the upper surface of the protrusion 6a of the elastic member 6 provided on the next stage pole 9. It is formed to have a dimension equal to or greater than the distance l, and the outer diameter D of the stopper 11 is
is formed to have a dimension smaller than the diameter of the circle inscribed in the projections 6a of the elastic member 6 of the next-stage pole 9, that is, the distance d between the projections 6a. Note that the configuration of this embodiment other than those described above is the same as that shown in FIGS. 4 and 5. Also, in Figure 1, the reference numeral 12
are fold-back retaining parts 12 formed on the inner peripheral side of the tips of the respective poles, and these fold-back retaining parts 12 are in contact with the upper ends of the elastic members 6 of the adjacent poles on the inside. When the power feeding pole device of the embodiment configured as described above is installed on a bumper such as an automobile, the tip pole 1 is subjected to an impact that goes beyond the normal shortened state of the telescopic multi-stage pole 3 and further toward the shortened side. When force is applied, the lower end of the tip pole 1 and the base member 8
The lower end of the stopper 11, which is interposed between the base member 8 and the upper end and is fixed to the tip pole 1, is brought into contact with the upper end side of the base member 8. Therefore, the impact force is not transmitted from the lower end of the inner adjacent pole to the protrusion 6a of the elastic member 6 attached to the next pole 9 and below, and the protrusion 6a is prevented from being crushed or damaged. do not have. FIGS. 2 and 3 show other embodiments, and FIGS.
In FIG. 3, the same reference numerals as in FIG. 1, FIG. 4, and FIG. 5 indicate corresponding parts. In this embodiment, a stopper 13 is integrally projected from the upper end surface of the base member 8. The stopper 13 includes an arcuate protrusion 13 that faces between a pair of separation parts 13a and serves as a passage for intruding water.
A drive cord 4 having a rack 4b that meshes with the drive gear 14 of the drive section 5 is loosely inserted between these arcuate protrusions 13b. Further, the upper end of the stopper 13 is brought into contact with the lower end of the tip pole 1 when the telescopic multi-stage pole 3 is shortened, and in this state, the lower end of the tip pole 1 is prevented from coming into pressure contact with the upper end of the protrusion 6a of the elastic member 6 of the next stage pole 9. It is configured. The configuration of this embodiment other than those described above is the same as that of the embodiment shown in FIG. 1, and substantially the same effect as that of the embodiment shown in FIG. 1 can be obtained. In the present invention, the stopper may be provided to face both the tip pole and the base member, and the opposite ends of both stoppers may be brought into contact when the telescopic multi-stage pole is shortened, and the number of poles of the telescopic multi-stage pole may be Also, the number of examples is not limited.

[Effect of the idea]

As explained above, according to the present invention, a stopper is fixed to at least one of the tip pole and the base member, and the stopper is interposed between the lower end of the tip pole and the upper end of the base member, so that the stopper is fixed when the telescopic multistage pole is shortened. By bringing the pole into contact with a mating member, even if an impact force is applied to the tip pole that goes beyond the normal shortened state of the telescopic multi-stage pole and goes further toward the shortened side when it is attached to a car bumper, etc. Since the impact force is not transmitted from the lower end of the pole adjacent to the inside of the protrusion of the elastic member attached to the pole below the stepped pole, the protrusion will not be crushed or damaged, and the impact force will not be crushed or damaged. The tip pole may fall off and the telescopic multi-stage pole cannot be extended or retracted, the pole may come off when the telescopic multi-stage pole is extended, the sliding force may be abnormal during extension or contraction, and the damaged protrusion may damage the outer surface of the pole, shortening the pole's lifespan. Moreover, it is possible to prevent the appearance of the pole from deteriorating, and it has a simple structure of just adding a stopper to the conventional one, so that it is possible to achieve the effects of improving quality and productivity.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal cross-sectional view of the main parts of an automatic telescopic power supply pole device according to an embodiment of the present invention, and FIG. 2 is a view of the lower part of the telescopic multistage pole showing an automatic telescopic power supply pole device according to another embodiment of the present invention. 3 is a perspective view of the base member portion of FIG. 2, FIG. 4 is a partially sectional front view showing a conventional automatic telescoping power supply pole device, and FIG. FIG. 6 is a vertical cross-sectional view of the multi-stage pole portion, showing a collapsed state of the protrusion in the portion shown in FIG. 1... Tip pole, 2... Electrical parts, 3... Telescopic multi-stage pole, 4... Drive cord, 4a...
Core wire, 4b...Rack, 5...Drive section, 6...Elastic member, 7...Base pole, 8...Base member,
9, 10...Paul, 11...Stoppa, 11a
... Center hole, 12 ... Fold-back retaining part, 13 ...
Stopper, 13a... Separation portion, 13b... Arc-shaped protrusion, 14... Drive gear.

Claims (1)

[Claim for Utility Model Registration] A telescopic multi-stage pole 3 with an electric component 2 attached to the tip pole 1, and a protrusion 6a that protrudes toward the center from a hole formed in the inner pole and is hollow inside.
is formed on a part of the peripheral wall and is slidably pressed against the pole located on the outside; a base member 8 fixed to the lower end of the base pole 7; and a lower end of the tip pole 1. or an annular stopper 1 provided at the upper end of the base member 8 or both thereof;
1 and 13, and the length L of the stoppers 11 and 13 in the pole axial direction
is equal to or longer than the distance l from the upper end surface of the base member 8 to the upper surface of the projection 6a of the elastic member 6 provided on the next stage pole 9 when the telescopic multi-stage pole 3 is shortened, and An automatic telescopic power feeding pole device for vehicle equipment, characterized in that a diameter D is smaller than a diameter d of a circle formed by the inner edge of the protrusion 6a of the elastic member 6 provided on the next stage pole 9.