CN201070928Y

CN201070928Y - Automatically positioning folding ruler

Info

Publication number: CN201070928Y
Application number: CNU2007200070226U
Authority: CN
Inventors: 王新富
Original assignee: Fujian Soundy Enterprise Co Ltd
Current assignee: Fujian Soundy Enterprise Co Ltd
Priority date: 2007-05-11
Filing date: 2007-05-11
Publication date: 2008-06-11
Anticipated expiration: 2017-05-11

Abstract

The utility model relates to an automatic-positioning folding ruler which comprises a first ruler body and a second ruler body, wherein the two ruler bodies are overlapped as a whole by means of shaft positioning mechanism. The utility model is characterized in that the shaft positioning mechanism comprises a shaft hole with toothed edge and arranged on the first ruler body, a hollow convex shaft used to be inserted into the shaft hole and arranged on the second ruler body, a radial groove provided in the diameter direction of the convex shaft, an elastic pin placed inside the radial groove in a way that the two ends thereof are retractable on the surface of the convex shaft and used to be inserted into a sawtooth groove inside the shaft hole for positioning, and a cover arranged on the convex shaft of the second ruler body and used to limit the elastic pin. The first ruler body and the second ruler body can rotate around the shafts, and the two ends of the elastic pin can slide through a sawtooth part and then are positioned inside the sawtooth groove, so as to relatively fix the angles where the two ruler bodies are located. The utility model can meet the requirement for length extension of the ruler body, can regulate the angle freely within a 180 degree range, and has automatic-positioning function with easy operation.

Description

Automatically the folding chi of location

Technical field:

The utility model belongs to the stationery field, particularly-and kind can rotary folding and rotate to the folding chi that different angles can be located automatically.

Background technology:

Ruler is one of the most common stationery, and purposes is quite extensive, to work position, all needs it as measuring length and the straight line tool of painting from primary school's study.Owing to be subjected to the restriction of writing case or school bag, it is very long that ruler can not be made, general only about 15cm, bring great inconvenience to use, so many manufacturers carry out necessary improvement to ruler, as the disclosed a kind of folding utility ruler of patent No. CN200520077552.9, this ruler is that the rotating shaft by the end is hinged to one with scale and rotation chi, the rotation chi can rotate to 180 ° around the shaft, reaches the length that enlarges ruler, and the rotation chi can be worked as the compasses use.But also there is defective in this structure, and the rotation chi pivots and can't locate automatically when putting in place, makes troubles for the drafting angle.

Summary of the invention:

The purpose of this utility model can be positioned at the folding chi in automatic location of certain angle voluntarily when being a kind of rotation of design.

Technical solutions of the utility model are achieved in that a kind of folding chi of location automatically, comprise the first chi body and the second chi body, two chi bodies, one end overlaps by the axle location and is integral, it is characterized in that the axle location refers to the axle eye that offers band saw tooth edge on the first chi body, the second chi body is provided with and can inserts the hollow protruding axle that the axle eye forms the axle location, protruding axle offers a radial slot along diametric(al), one resilient key is placed in the radial slot, its both ends are scalable in protruding axle surface, and insert in the serrated slot of eye and locate, on the protruding axle of the second chi body, also be equipped with the lid of a restriction resilient key.The first chi body and the second chi body can pivot, and the resilient key two ends can slip over sawtooth portion and spring in the serrated slot and locate, but make the residing angle relative fixed of two chi bodies, the convenient use.

The described first chi body and the second chi body all have complete thick rule limit and half thick polymer, half thick and heavy zoarium of the first chi body is in the upside on complete thick rule limit, half thick and heavy zoarium of the second chi body is in the downside on complete thick rule limit, after the first chi body and the second chi body weight are closed, become a thickness evenly and the short chi on bilateral band rule limit.Good integrity can provide one times extended length when needing.

The utlity model has reasonable in design, spare and accessory parts are few, both can satisfy the needs of chi body length expansion, again can be in 180 ° of scopes adjusting angle and have the characteristics of location automatically arbitrarily, use simple to operately, need not waste motion.

Description of drawings:

Below in conjunction with concrete legend the utility model is described further:

Fig. 1 folds the chi three-dimensional exploded view

Fig. 2 folds chi three-dimensional exploded view two

Fig. 3 folds the chi profile

Fig. 4 folds chi folded position figure

Fig. 5 folds chi open mode figure

Wherein

The 1-first chi body 11-axle eye 12-toothed edge

The complete thick end 2-second chi body of 13-notch 14-

The unsettled button of 21-protruding axle 22-radial slot 23-

24-arcuation end 25-fovea superior structure 26-template

3-resilient key 31-elastic ring 32-fin

4-lid 41-block 42-button pin

5-rule limit 6-half thick and heavy zoarium

The specific embodiment:

With reference to Fig. 1, Fig. 2 and Fig. 3, the folding chi of location comprises the first chi body 1, the second chi body 2, resilient key 3 and lid 4 by plastic rubber shaping automatically.Offer the axle eye 11 on band toothed edge 12 edges on the first chi body 1, the second chi body 2 is provided with and can inserts the hollow protruding axle 21 that axle eye 11 forms the axle location, protruding axle 21 offers a radial slot 22 along diametric(al), resilient key 3 is placed in the radial slot 22, its both ends are scalable in protruding axle 21 surfaces, it can insert in the serrated slot of eye toothed edge 12 and locate, and rotate the first chi body 1 by force, resilient key 3 ends can slip over the sawtooth portion of toothed edge 12 again, fall into another serrated slot and locate, reach automatically or the purpose of location voluntarily.

As Fig. 1, described resilient key 3 is that central authorities have an elastic ring 31, convexes with two pin heads along elastic ring 31 diametric(al) symmetries, and the pin head is identical substantially with serrated slot, makes the location more accurate.In addition, on 3 liang of pin heads of resilient key respectively to the left and right both sides be extended with a fin 32, fin 32 is reliably established hollow protruding axle 21 inboards, restriction ejection amount.The design of elastic ring 31, the deformation quantity that has made full use of material self reaches the purpose of ejection, and resilient key 3 structures are simplified the most, and one-shot forming need not assembling.

The first chi body 1 and the second chi body 2 all have complete thick rule limit 5 and half thick polymer 6, half thick and heavy fit 6 of the first chi body 1 is in the upside on complete thick rule limit 5, half thick and heavy fit 6 of the second chi body 2 is in the downside on complete thick rule limit 5, after the first chi body 1 and the second chi body 2 overlap, become a thickness evenly and the short chi on bilateral band rule limit.A semi arch is unsettled buckles 23 and be extended with to half thick and heavy fit 6 one sides on the complete thick rule limit 5 of the second chi body 2, half thick and heavy fit 6 corresponding unsettled 23 places that buckle of the first chi body 1 are provided with a semi arch notch 13, the remainder of notch 13 can cut that the first chi body is unsettled to be buckled between 23 and half thick and heavy fit 6, form the location, keep amounting to shape two chi bodies axle head far away and reliably be positioned at together, as shown in Figure 3.In addition, the first chi body 1 becomes semi-circular structure with an end of 2 location of the second chi body, and be in half thick and heavy fit 6 one sides, the semicircle diameter is identical with half thick and heavy fit 6 width, when two chi bodies are amounted to, be complete thick rule limit, both sides 5 symmetrical structures, and when opening 180 °, satisfactory to both parties thick scale limit 5 can be docked again and is integral.

It is the arcuation end 24 that matches with the complete thick end 14 of the first chi body arcuation away from end, axle location that the first chi body 1 is provided with the complete thick end of arcuation 14, the second chi bodies 2 away from the axle positioning end, and the balance of opening the back first chi body 1 can be supported in complete thick end 14; And the arcuation end 24 of the second chi body can be dodged a position and give the complete thick end 14 of the first chi body under the situation that does not influence the scale and the first chi body symmetry, and the short chi upper and lower surface after amounting to is flushed.Certain end also can be designed to rectangular-shaped, and this does not all influence result of use.

As Fig. 2, on the second chi body, 2 protruding axles 21, be equipped with a lid 4.Lid 4 has a block 41 and one symmetry and opens button pin 42, offer for buckleing the through hole of wearing on the hollow protruding axle 21 of the second chi body 2, the through hole both sides are provided with and can hold the fovea superior structure 25 of detaining pin 42, make block 41 fasten back buckle feet 42 bottoms and flush with the second chi body, 2 lower surfaces.The effect of lid 4 is restriction resilient keys 3, and the radial slot of avoiding that skids off the second chi body 2 22 also can directly be bonded on the end face of protruding axle 21.

As Fig. 1, on half thick and heavy zoarium of the described second chi body 2, offer the template 26 that some hollow outs become different shape, the facility of drawing simple graph is provided.

Claims

1. folding chi of location automatically, comprise the first chi body and the second chi body, two chi bodies, one end overlaps by the axle location and is integral, it is characterized in that the axle location refers to the axle eye that offers band saw tooth edge on the first chi body, the second chi body is provided with and can inserts the hollow protruding axle that the axle eye forms the axle location, protruding axle offers a radial slot along diametric(al), one resilient key is placed in the radial slot, its both ends are scalable in protruding axle surface, and insert in the serrated slot of eye and locate, on the protruding axle of the second chi body, also be equipped with the lid of a restriction resilient key.

2. the folding chi of location automatically according to claim 1, it is characterized in that the first chi body and the second chi body all have complete thick rule limit and half thick polymer, half thick and heavy zoarium of the first chi body is in the upside on complete thick rule limit, half thick and heavy zoarium of the second chi body is in the downside on complete thick rule limit, after the first chi body and the second chi body weight are closed, become a thickness evenly and the short chi on bilateral band rule limit.

3. the folding chi of location automatically according to claim 2, the complete thick rule limit that it is characterized in that the second chi body is extended with to half a thick and heavy fit side that a semi arch is unsettled to be buckled, the half corresponding unsettled buckle of thick and heavy zoarium of the first chi body is provided with a semi arch notch, the remainder of notch can cut the first chi body unsettled buckle and half thick and heavy zoarium between, form the location.

4. according to the folding chi of claim 1,2 or 3 described location automatically, what it is characterized in that the second chi body partly offers the template that some hollow outs become different shape on the thick and heavy zoarium.

5. the folding chi of location automatically according to claim 1 is characterized in that resilient key is that central authorities have an elastic ring, convexes with two pin heads along elastic ring diametric(al) symmetry, and the pin head is identical substantially with serrated slot.

6. the folding chi of location automatically according to claim 5 is characterized in that on the resilient key two pin heads that respectively both sides are extended with a fin to the left and right, and it is inboard that fin is reliably established hollow protruding axle.

7. the folding chi of location automatically according to claim 1, it is characterized in that lid has a block and a symmetry is opened the button pin, offer for buckleing the through hole of wearing on the hollow protruding axle of the second chi body, the through hole both sides are provided with and can hold the fovea superior structure of detaining pin, make block fasten the back buckle feet bottom and flush with the second chi body lower surface.

8. the folding chi of location automatically according to claim 1 and 2 is characterized in that the first chi body becomes semi-circular structure with an end of second chi axon location, and is in half a thick and heavy fit side that the semicircle diameter is identical with half thick and heavy fit width.

9. the folding chi of location automatically according to claim 1 and 2 is characterized in that the first chi body is provided with the complete thick end of arcuation away from the axle positioning end, and the second chi body is the arcuation end that matches with the complete thick end of the first chi body arcuation away from end, axle location.