CN2228726Y

CN2228726Y - Caster set for trunk

Info

Publication number: CN2228726Y
Application number: CN 95211138
Authority: CN
Inventors: 江锡鋘
Original assignee: MINGCHANG INDUSTRY Co Ltd
Current assignee: MINGCHANG INDUSTRY Co Ltd
Priority date: 1995-04-22
Filing date: 1995-04-22
Publication date: 1996-06-12
Anticipated expiration: 2005-04-22

Abstract

The utility model relates to a caster group for a trunk, which comprises a seat body and a bearing group, wherein, the seat body is provided with a body part of which the lower end is provided with a pair of supporting plates, and the upper end is provided with a concave part by integral forming; a caster is arranged between the supporting plates. The bearing group comprises a first shim inserted in the concave part, a rolling ball seat arranged on the upper part of the first shim, and a second shim arranged on the upper part of the rolling ball seat; the upper part of the rolling ball seat is provided with a plurality of through holes at intervals of an appropriate distance, and the through holes are used for inserting the rolling balls. An outer edge position between the upper end of the seat body and the second shim can block outer dust from invading by the rolling ball seat, and the through holes which are uniformly distributed can cause each rolling ball to conveniently glide.

Description

The luggage case roller set

The utility model relates to the luggage case annex, the luggage case roller set that particularly a kind of result of use is good.

Figure 1 shows that luggage case roller set 10 commonly used, its structure includes: with the stamping forming pedestal 11 of metallic plate, these pedestal 11 upper end central authorities are provided with an axostylus axostyle 12, correspond to these axostylus axostyle 12 outer upper surfaces and be formed with a concave surface annular recess 13 up, so that wherein insert a plurality of steel balls 14, one cover plate 15 is suppressed in these ball 14 tops respectively, and then with several screws 16 it is locked in luggage case bottom 17.

These luggage case roller set 10 its shortcomings of using mainly contain four:

One. owing to producing the friction that its revolution is difficult for, or send harsh noise, therefore generally all can make respectively formation one gap 18 between these pedestal 11 upper ends and cover plate 15 for avoiding this metal pedestal 11 respectively to contact with cover plate 15; And thus, then ground impurity will very easily be entered in this annular recess 13 by this gap 18, and makes that respectively these ball 14 rotations are difficult for, and then causes the user to be difficult for promoting the situation that this luggage case advances.

Two. because respectively this ball 14 places same groove 13 simultaneously, so during its indivedual rolling, the situation of extruding and friction will take place with other adjacent balls 14, and make that respectively this ball 14 is difficult for rotating.

Three. for solving aforementioned second shortcoming, general producer promptly can be in this groove 13 and is respectively inserted a large amount of lubricating oil between this ball 14, so that it more easily rolls, yet, dying user's clothing if not this lubricating oil accounts for by oozing out in this gap 18 easily, is to make dust easier to be adhered thereto.

Four. general dealer also has to reduce ball 14 quantity to avoid the situation person of aforementioned meeting mutual extrusion or friction; in case but ball 14 quantity reduce; then it promptly often can be gathered in a place; especially in that groove 13 is long-pending when dust is arranged; easier its cover plate 15 that makes is amesiality, and causes 14 on each ball to produce violent friction or stuck mutually so that situation such as can't rotate.

Main purpose of the present utility model promptly is to provide a kind of luggage case roller set at above-mentioned shortcoming, and it can reduce dust in a large number and enter the chance of using in the space of rotating for its ball, to keep the effect that it can rotate arbitrarily.

Of the present utility model time a purpose is to provide a kind of luggage case roller set, and it can make each ball on it keep suitable distance and unlikely mutual extrusion grater.

For realizing aforesaid purpose, the utility model provides a kind of luggage case roller set, it is characterized in that this luggage case includes with roller set: a pedestal, be to make in one-body molded mode, and have by the downward a pair of support plate that extends of its periphery, be hubbed at this to the roller between support plate, be positioned at a depressed part of this body portion upper end, and a location axis hole that connects this body portion upper and lower end; One bearing block, it has: can be placed through the locating shaft in this positioning shaft hole, and can from bottom to top be set in one first pad on this locating shaft respectively, one ball base and one second pad, wherein this first pad is placed in the depressed part of this pedestal, this ball base is with the plastics shape of laminating, on it and be provided with several perforations around its axle center annular arrangement, respectively be equipped with a ball that can roll arbitrarily in this perforation respectively, and respectively the diameter of this ball is greater than the thickness of this ball base, this second pad then is positioned at the top of this ball base, and respectively this ball clipping is therebetween with the upper surface of its lower surface and this first pad; This ball base has the outer rim position that can enter in order to the dust that stops ground therebetween between this pedestal upper end and this second pad, described respectively this ball is distributed in respectively between this first, second pad fifty-fifty.

The luggage case of the present utility model setting of roller set by ball base, make it can stop extraneous dust intrusion wherein between this pedestal upper end respectively and outer rim position between second pad, respectively this perforation then can make each ball on it be convenient to slide and be unlikely to take place the situation of phase mutual friction.

Now lift a preferred embodiment of the present utility model, and conjunction with figs. be described in further detail as follows, wherein:

Fig. 1 is the front elevational schematic of luggage case roller set commonly used.

Fig. 2 is the stereogram of the utility model preferred embodiment.

Fig. 3 is the three-dimensional exploded view of the utility model preferred embodiment.

Fig. 4 is the positive cross-sectional schematic of the utility model preferred embodiment.

See also Fig. 2 to Fig. 4, luggage case of the present utility model is combined by a pedestal 22 and a bearing block 24 with rolling case group 20.

This pedestal 22, be to make with plastic material, it has: a columned body portion 30, a pair of support plate 32 extends suitable length by the periphery of this body portion 30 downwards in the mode of 180 degree of being separated by, one roller 34 is hubbed between this two support plate 32 by an axostylus axostyle 36, one depressed part 38 is rounded and be located at the top of this body portion 30 in one-body molded mode, and its central part is provided with a location axis hole 39 that connects these body portion 30 upper and lower ends.

This bearing block 24 includes: a locating shaft 40 from bottom to top is placed through among this axis hole 39 via two packing rings 41, and makes its upper end protrude from this suitable length in depressed part 38 tops; One first pad 42 is made of metal, and be placed on this locating shaft 40 with one first axis hole 43 at position, centre located therein, and it can be embedded among this depressed part 38, and the inwall periphery of this first axis hole 43 is provided with a collar flange 44 of downward extension suitable length, this collar flange 44 can embed among this positioning shaft hole 39, and between these positioning shaft hole 39 inwalls and this locating shaft 40 outer rims; The thin plectane of one ball base 46 for making with plastic material, and but pivot is placed on this locating shaft 40, which is provided with the suitable distance and be center and several perforations 45 of arranging in the form of a ring of being separated by with this locating shaft 40, and respectively this perforation 45 again respectively with the outer rim position 47 of this ball base 46 suitable distance of being separated by, and the external diameter at this outer rim position 47 is identical with footpath outside these body portion 30 upper ends, and this outer rim position 47 can be trimmed with the upper end outer rim of this body portion 30; Several balls 48 are embedded in corresponding respectively this perforation 45 in rotatable mode respectively, and its diameter is greater than the thickness of this ball base 46; One second pad 50 is made for metal, and be set on this locating shaft 40 with one of set second axis hole 52 of its central part, then resist in the top of this ball 48 respectively its lower surface, make and support equally with metal this locating shaft 40 with metal respectively these first,

second axis hole

43,52 inner edges, these locating shaft 40 upper ends that will still protrude from these second pad, 50 tops during combination strike out has big external diameter, each assembly can not drop on this locating shaft 40 so that be placed through, and will be respectively these ball 48 clippings in respectively between this first,

second pad

42,50.

In the time of on this luggage case roller set 30 desires to be fixed in a luggage tank shell 60, be placed on the corner below of this Trunk body case 60 earlier, then preset a pressing plate 62 corresponding to these second pad, 50 tops in these Trunk body case 60 inside, connect respectively this pressing plate 62 respectively with Trunk body case 60 and spiral shell is located at four screws 64 on this second pad 50 by its end again, to fix this luggage case roller set 30.

This luggage case roller set 20 has three advantages in the use at least:

One. by this ball base 46 its corresponding to the outer rim position 47 between these pedestal body portion 30 upper ends and this second pad, 50 lower surfaces, can effectively stop ground most dust, make it be difficult to enter respectively between this first pad 42 and ball 48.

Two. because this pearl seat 46 is to make with plastic material, therefore, respectively this ball 48 that is evenly distributed in its each perforation 45 still can need not to use lubricating oil in wherein freely rolling, and, because respectively 48 on this ball is separated with suitable distance mutually, therefore situations such as mutual extrusion friction can not take place again.

Three. permanently therefore, can be supported in the below of this second pad 50 fifty-fifty because the distance of 48 on two arbitrarily adjacent balls is restricted to by this ball base 46, and make it be unlikely crooked to a side for certain.

Claims

1. luggage case roller set is characterized in that this luggage case includes with roller set:

One pedestal is to make in one-body molded mode, and has a pair of support plate that is extended by its periphery downwards, is hubbed at this to the roller between support plate, is positioned at a depressed part of this body portion upper end, and a location axis hole that connects this body portion upper and lower end;

One bearing block, it has: can be placed through the locating shaft in this positioning shaft hole, and can from bottom to top be set in one first pad on this locating shaft respectively, one ball base and one second pad, wherein this first pad is placed in the depressed part of this pedestal, this ball base is with the plastics shape of laminating, on it and be provided with several perforations around its axle center annular arrangement, respectively be equipped with a ball that can roll arbitrarily in this perforation respectively, and respectively the diameter of this ball is greater than the thickness of this ball base, this second pad then is positioned at the top of this ball base, and respectively this ball clipping is therebetween with the upper surface of its lower surface and this first pad;

This ball base has the outer rim position that can enter in order to the dust that stops ground therebetween between this pedestal upper end and this second pad, described respectively this ball is distributed in respectively between this first, second pad fifty-fifty.

2. luggage case roller set according to claim 1 is characterized in that the external profile diameter of this ball base is not less than the external profile diameter of this body portion upper end.

3. luggage case roller set according to claim 1 is characterized in that also including a pressing plate, and is respectively combined by some screws between this pressing plate and this second pad.