CN1034517A - The axle of mounting article - Google Patents

Abstract

For fixing object, a kind of improved axle has been proposed just such as this class of paper core.It comprises a mandrel, an axle sleeve mounted thereto and many slide blocks that is installed in the formed axial groove of axle sleeve.These slide blocks are can slide axially into the outer ledge that makes them to exceed on such position, axle sleeve surface, and they are pressed on the inwall of mounting article centre hole, thus fastening reliably object.

Description

The axle of mounting article

The present invention relates to a kind of axle that the centre hole object is arranged that is used for fixing.The hole of passing on the object centre with an anchor shaft fixes this object, and this object may make object move or swing towards a certain direction under the influence that is subjected to various external force.So, the hunting motion meeting hinders its pulsation-free work.

The coil paper anchor shaft that the relevant photo that will narrate is handled printing device continuously is exactly the example in this class problem.Be used for the cylinder core of coil paper or be used for the reel core of magazine, they are suitable for loading printing paper, are widely used for avoiding the accidental exposure of photosensitive paper now.Garden tube core is installed on the cantilever anchor shaft that is fixed on the developing and printing frame.The coil paper that is contained on the anchor shaft can be drawn out the long band of formation in the print treating process.Any big deviation particularly along the hunting motion of the axis direction of anchor shaft, all may cause crooking or swaying of coil paper, like this, will play harmful effect in the high-precision print work of needs.

The accident that people once adopted the anchor shaft of several patterns to reduce as far as possible and are contained in object on the anchor shaft is swung.Wherein a kind of is that one or more leaf springs that extend along its surface axis direction are housed on the anchor shaft of a transmission, and therefore, when object is adorned thereon, the spring top will be pressed on the inwall of object garden tube core, makes its bottom in the surface of axle simultaneously.Another kind of conventional fixed axle is equipped with one or more around a fixing elastic ring piece of the circumference of axle and a conical part that inserts between elastic ring piece and anchor shaft, elastic ring piece is radially expanded and the inwall of pressing to object cylinder core to support it.

The anchor shaft of preceding a kind of prior art has the simple advantage of mechanism, but, because the elastic force of bow type spring is big, when object is fixed to anchor shaft and from anchor shaft demolition it the time, all need sizable power, will on object, apply big load partly like this.For example, if before being installed to by the coil paper of print on a kind of anchor shaft of prior art, it is stacked that coil paper on the fuse in the Cylindorical rod is easy to be cover, because coil paper is pressed on the anchor shaft by the part, therefore all will cause the slight change of coil paper position at any time.In addition on the one hand, because expandable elastic ring piece is equipped with in the garden of the anchor shaft of a kind of prior art in back, edge on week, need carry out meticulous adjustment according to the error in object cylinder in-core footpath.Therefore, it is very difficult requiring the anchor shaft of this pattern to have versatility.In addition, owing to need a large amount of parts and other complicated mechanism, therefore be easy to break down, and cost height, again furtherly, because the area of contact between the fuse of elastic component and object is smaller, so the deviation that requirement is eliminated on the object axis direction reliably is very difficult really.

The purpose of this invention is to provide an axle that is used for fixing various object, the dress folding of object is easy to, and does not require the excessive external force that may cause the object distortion, simultaneously its simple requirement widely of also satisfying the mounting article axle of mechanism.

Adopt anchor shaft of the present invention, the axle sleeve surface that it has many plate shape slide blocks to exceed, and the maintenance of their outer ledge is parallel with the axle sleeve surface, so that on a wide area, they are pressed against on the inwall of object cylinder core.Therefore, object is supported on reliably on this anchor shaft and can produce swing in any direction.In the course of the work, the hunting motion of equipment need be checked minimum, and this is special needs.

When locking, because can only in a direction, move, and be pressed on the wall in the desired location such as the object of this class of paper in reel, finish the accurate location of paper in reel.Because with axle ingear knob as a strut member, just can obtain very big coupling mechanism force with a very little power.In addition, even any error is arranged, also do not need special adjustment in the internal diameter of object cylinder core, like this, object always can be fastened on the anchor shaft reliably, and can not be subjected to the influence of this error.

Even will be installed on the axle such as this class object of paper in reel in careless mode, paper in reel also can be adjusted to correct position and can not go wrong, the demolition work of this object and erection work are very simple and convenient equally, because it is simple in structure,, it has very high value of service and cheap anchor shaft so just providing.

From relevant accompanying drawing and the following describes, purpose of the present invention and characteristic are conspicuous, wherein:

Fig. 1 is the front view of anchor shaft of the present invention.

Fig. 2 is the cutaway view along A-A line intercepting among Fig. 1.

Fig. 3 is the cutaway view along B-B line intercepting among Fig. 2, represents the anchor shaft under the locking state not.

Fig. 4 is a view that is similar to Fig. 3, but the same anchor shaft under the expression locking state.

With reference to accompanying drawing, numeral 1 expression is used for fixing the anchor shaft of an object among the present invention, and it comprises that an end that makes mandrel is fastened to mandrel 3 and elongated, the large diameter axle sleeve 4 of installing with one heart and being fastened on the mandrel 3 on the photographic print apparatus frame of continuous working machine (not shown).Form 3 grooves 5 on the axle sleeve 4, the impartial angle distribution of these grooves, and on the axis direction of whole sleeve length, extend substantially, their plate shape slide block 7 is contained in each groove 5, slide block 7 is adapted at doing slipping motion in the webge slot 5, and led by groove, when the right of slide block 7 being pushed among Fig. 1 and Fig. 3, along with sliding in the wedge shape bottom surface of each groove 5 in each slide block base 8, the outer ledge 9 of each slide block 7 will be above axle sleeve surface 6, but keep parallel with axle sleeve surface 6, axle sleeve 4 forms an annular sipes between starting point 10 and terminal point 11, and extend along axis direction, be distributed on the outer ledge of each slide block 7 in this section interval at circular groove 10 places, all form a groove 12, annual spring 13 is installed in the groove 12 on the slide block 7 around axle sleeve 4, the degree of depth of groove 12 enough is fit to hold annual spring 13 and does not make it expose the outer ledge 9 of slide block 7, owing to embedded one or more blocks 14 constraints in the circular groove 10, make annual spring 13 elongations, therefore impel each slide block 7 according to the i.e. left side in Fig. 1 and Fig. 3 of such direction, along the wedge shape base of each groove 5 to lower slider, the outer ledge of each slide block is returned to be lower than 6 positions, axle sleeve surface, promote the part that slide block 7 advances, for example knob 15, it is contained in the end of slide block 7, knob can be identical with the diameter of axle sleeve 4, also can be less than the diameter of axle sleeve 4, knob is meshed with the threaded portion 16 of axle 3 one ends.When turn knob 15, slide block 7 overcomes the elastic force of annual spring 13, pushes it among Fig. 3 the right, little by little makes it stretch out axle sleeve surface 6.

Stretch out on the inwall of this class object on these outer ledges 9 of the slide block 7 on axle sleeve surface 6 are pressed to such as cylinder core 19, this class object is installed on the axle 1 in advance simultaneously, so just reliably this object is fastened on the anchor shaft 1, does not also have swing thereby object had not both been had in any direction move.

Claims (4)

1, owing to be fixed with an axle of the object of centre hole, it comprises:

A mandrel

The axial groove that an axle sleeve of installing with one heart and being fastened on the above-mentioned mandrel, above-mentioned axle sleeve form many equal angles and extend vertically, this groove also has the wedge shape bottom surface;

Many slide blocks that are installed in the above-mentioned axial groove, thus utilize above-mentioned groove to make their slip of leading, and their outer ledges of while and above-mentioned axle sleeve keeping parallelism stretch out above-mentioned axle sleeve surface until its outer ledge;

Owing to promote the biasing device that above-mentioned slide block makes it to remain on the subsurface contraction of above-mentioned axle sleeve orientation;

Be used to support the slider support device that above-mentioned slide block overcomes above-mentioned biasing device thrust and is placed in above-mentioned mandrel one end.

2, according to the axle of claim 1, wherein above-mentioned slide block is a triangular plate piece.

3, according to the axle of claim 1, wherein above-mentioned slider support part is the knob that screw thread is installed in above-mentioned mandrel one end.

4, according to the axle of claim 1, wherein above-mentioned biasing device is an annual spring.

Images