CN2507031Y

CN2507031Y - Elastic bow shape arm for glasses

Info

Publication number: CN2507031Y
Application number: CN 01256295
Authority: CN
Inventors: 何世语
Original assignee: GUANDA HARDWARE WORKING FACTORY HENGGANG TOWN LONGGANG DIST SHENZHEN
Current assignee: GUANDA HARDWARE WORKING FACTORY HENGGANG TOWN LONGGANG DIST SHENZHEN
Priority date: 2001-10-16
Filing date: 2001-10-16
Publication date: 2002-08-21
Anticipated expiration: 2011-10-16

Abstract

The utility model relates to an elastic bow-shaped arm for glasses, which comprises glass legs (1) and a pin head (2), wherein the pin head (2) is provided with a hinge hole (21) and a spacing groove (22); the front end of each glass leg (1) respectively extends a back hinge (11) having appropriate elasticity and a press rod (12), and the hinge hole (21) of the back hinge (11) is connected with a movable shaft, and the front part of the press rod (12) is clamped in the spacing groove (22) and can slide a short distance along the spacing groove (22); inward restoring force acted on the glass legs (1) and the pin head (2) is generated by the back hinge (11) and the press rod (12). The utility model reduces a plurality of complicated parts of the original elastic bow-shaped arms and has the advantages of simple structure, high quality and low price.

Description

The catapult arm that is used for glasses

Technical field

The utility model relates to the structural member of glasses non optical component, relates in particular to a kind of catapult arm that makes the relative village of leg of spectacles head that certain anglec of rotation be arranged.

Background technology

The existing catapult arm that is used for glasses mostly is to adjust the subtended angle size by the elastic force of spring, the complex structure of this elastic spectacles leg, its production, assembling be difficulty relatively, cost is higher, as the Chinese utility model patent of the patent No. 012156663, its catapult arm comprises sleeve, village head, hinge and places sleeve cavity interior removable pin, spring and leg of spectacles successively.Wherein, two stiff ends of hinge are welded on village head and the suitable position of sleeve respectively, and the leading section of leg of spectacles inserts sleeve rear portion and fixing, and removable pin and sleeve are provided with position limiting structure.Though said structure has been made great improvement, still more complicated to the structure of previous glasses catapult arm.

Summary of the invention

The purpose of this utility model be to avoid the deficiencies in the prior art part and provide a kind of simple in structure, cost of manufacture is low but reliable quality is used for the catapult arm of glasses.

The purpose of this utility model can realize by adopting following technical measures, design a kind of catapult arm that is used for glasses, comprise leg of spectacles and village head, the back segment middle part of village head is provided with pan, its back is provided with limited impression, the leading section of leg of spectacles extends respectively and has flexible back hinge of appropriateness and depression bar, and the back hinge is connected with the pan movable axis, and the front portion card of depression bar is pressed in the limited impression;

The length of described limited impression is slightly larger than card and is pressed in depression bar in this limited impression, makes depression bar to do small distance along stopper slot and slides; The back hinge that described and leg of spectacles is movably hinged produces an inside restoring force that acts on leg of spectacles and village head jointly with the depression bar that card is pressed in limited impression; Toward the extrapolation leg of spectacles, the back hinge is rotated, and depression bar is inconsistent up to the rear portion of depression bar front end and limited impression to front slide along stopper slot, cancel external force, be subjected to the effect of described restoring force, the leg of spectacles original position of rebounding, the utility model has provided three embodiment said structure has been described.

Compared with prior art, the catapult arm that the utility model is used for glasses has reduced many complex partses of original catapult arm, thus have simple in structure, cheap and good-quality advantage.

Description of drawings

The drawing of accompanying drawing is described as follows:

Fig. 1 is the utility model catapult arm embodiment one village head (Figure 1A), leg of spectacles and back hinge (Figure 1B) structural representation;

Fig. 2 is the open configuration synoptic diagram of the utility model catapult arm embodiment one when being subjected to external force;

Fig. 3 is the structural representation of the utility model catapult arm embodiment one normal condition;

Fig. 4 is the semi-collapsed condition synoptic diagram of the embodiment one of Fig. 2;

Fig. 5 is the package assembly synoptic diagram of the utility model catapult arm embodiment two;

Fig. 6 is the structural representation of the utility model catapult arm embodiment two normal conditions;

Fig. 7 is the semi-collapsed condition synoptic diagram of the embodiment two of Fig. 6;

Fig. 8 is the open configuration synoptic diagram of the embodiment two of Fig. 6 when being subjected to external force;

Fig. 9 is village head (Fig. 9 A), leg of spectacles (Fig. 9 B) and back hinge (Fig. 9 C) structural representation of the utility model catapult arm embodiment three;

Figure 10 is the open configuration synoptic diagram of the utility model catapult arm embodiment three when being subjected to external force;

Figure 11 is the structural representation of the normal condition of embodiment three shown in Figure 10;

Figure 12 is the semi-collapsed condition synoptic diagram of the embodiment three of Figure 10.

Embodiment

Below in conjunction with drawings and Examples utility model is described in further detail.

As Fig. 3, Fig. 6 and shown in Figure 11, the catapult arm that the utility model is used for glasses comprises leg of spectacles 1 and the village 2, the back segment middle part in the village 2 is provided with pan 21, its back is provided with limited impression 22, the leading section of leg of spectacles 1 extends respectively and has flexible back hinge 11 of appropriateness and depression bar 12, back hinge 11 is connected with pan 21 movable axis, and the front portion card of depression bar 12 is pressed in the limited impression 22;

The length of described limited impression 22 is slightly larger than card and is pressed in depression bar 12 in this limited impression 22, makes depression bar 12 to do small distance along stopper slot 22 and slides, and institute can open angle when the small distance of this section slip had determined that the catapult arm is subjected to external force; The rearward end of leg of spectacles 1 and back hinge 11 requires when welding to accomplish that depression bar 12 that back hinge 11 that described and leg of spectacles 1 be movably hinged and card are pressed in limited impression 22 can produce an inside restoring force that acts on leg of spectacles 1 and the village 2 jointly; Toward extrapolation leg of spectacles 1, back hinge 11 is rotated, and depression bar 12 is inconsistent up to the rear portion of depression bar 12 front ends and limited impression 22 to front slide along stopper slot 22, cancels external force, is subjected to the effect of described restoring force, the leg of spectacles 1 original position of rebounding.Above-mentioned mechanical structure has many concrete embodiments, and the utility model has provided three kinds of embodiments, below division as follows:

Embodiment one: as shown in Figure 1, the described village 2 back segment are provided with pan 21, its back is provided with a limited impression 22, back hinge 11 and leg of spectacles 1 are the circular steel wire with diameter, back hinge 11 is bent to the ear shape, its head 111 is vertical with middle part 112, suitable position during the afterbody 113 of back hinge 11 is weldingly fixed in the leg of spectacles 1 by sleeve 116; The front portion of leg of spectacles 1 is pressed in the limited impression 22 in the described village 2 as depression bar 12 card, and the leading portion of this depression bar 12 has inflection point, an obtuse angle, and this inflection point, obtuse angle is divided into two sections end to end to depression bar 12.22 of described limited impressions are right angle groove.The head 111 of back hinge 11 forces and inserts in the described pan 21 (Fig. 2).

Its fabrication and installation order is as follows: will pass sleeve through back hinge 11 after the camber processing and leg of spectacles 1 and also weld in position, then to the front end head 111 of back hinge 11 with apply external force as leg of spectacles 1 leading section of depression bar 12 to the direction of both sides arrow 19 and break into two with one's hands, make depression bar 12 opened with certain angle of leading section 111 with leg of spectacles 1 leading section of back hinge 11.Again the village 2 with direction and angular misalignment shown in figure (1A) before, the pan 21 that hinge 11 leading sections 111 in back are aimed at the village 2 inserts earlier.Firmly break the leading section 12 of leg of spectacles 1 then into two with one's hands, put into the limited impression 22 at 2 back, the village, install this moment.

Fig. 2 is that the utility model catapult arm is being subjected to external force to make a kind of duty that shows of time spent.When wearing spectacles person's head is big, mirror leg 1 will be subjected to an outside thrust, at this moment, and then mirror leg 1 pan 21 rotations of 2 of back hinge 11 around the village, because card is pressed in the summit 221 of limited impression 22 in depression bar 12 and the village 2 of the leading section of the mirror leg 1 in the limited impression 22 in the village 2 one section operating range is arranged, 2 limited impression 22 slides the depression bar 12 of mirror leg 1 leading section along the village, when reaching the summit 221 of limited impression 22, is the maximum open angle of catapult arm.If cancel external force, because being pressed in the depression bar 12 of limited impression 22, back hinge 11 and card produce an inside restoring force that acts on leg of spectacles 1 and the village 2, force the leg of spectacles 1 and the village 2 position of replying Fig. 3.

Fig. 4 is that the catapult arm of present embodiment is in the semi-collapsed condition of finishing using and will collect.When leg of spectacles 1 rotation is turned back, the parallel position 121 of end-post 12 is by position, top, the right angle of the limited impression 22 at 2 back, the village 221 outer jack-up before the leg of spectacles 1, this moment, leg of spectacles 1 preceding end-post 12 inside restoring forces were strengthened, continue inwardly rotation, it is parallel that position, plane 20 in the limited impression 22 in the village 2 and the prosposition 121 of depression bar 12 front ends are close to, and restoring force impels the village 2 a rapid inflection to become full folded state.

Embodiment two (Fig. 5): there is a groove hinge position of the described village 2 back segment, the front portion of leg of spectacles 1 puts in this groove and makes hinge axis with screw 13 as described back hinge 11, described depression bar 12 is the cover tubular, produce the front portion be enclosed within leg of spectacles 1 behind this sleeve and weld, the depression bar 12 that the anterior card of sleeve is pressed in (Fig. 6) described cover tubular in the limited impression 22 in the described village 2 has a triangular hill in the middle.Fig. 7 and Fig. 8 are that present embodiment two is subjected to external force to make open configuration and the semi-collapsed condition synoptic diagram of time spent.Its making assembling process is as follows:

1. will overlap the hole that φ 1.4mm wears in the back segment portion of the depression bar 12 of tubular earlier, with the machine that freezes it be freezed in the anterior appropriate location of leg of spectacles 1 then;

2. use gong blade groove of symmetrical gong in the middle of the hinge position of village head of φ 30mm～φ 60mm, be used for hiding the back hinge 11 (being hinge head) of leg of spectacles 1 front portion;

3. with screw 13 the back hinge 11 of the village 2 with leg of spectacles 1 front portion is movably hinged.

Embodiment three: as shown in Figure 9, the described village 2 is for being welded on two little intermediate plates on the spectacle-frame, the back recessed hinge position broad of its back segment, and have pan 21, its front portion is provided with a lock screw 23 that is used to regulate two intermediate plate distances, and the outside center section in the village 2 has a protruding drift angle 20; Jack-up depression bar head 12 when this drift angle 20 is subjected to external force in order to leg of spectacles helps leg of spectacles 1 and returns and play elastic force and strengthen.The leading portion of described leg of spectacles 1 is close to a position, 1 back segment plane 16, the described village as depression bar 12, and the stage casing part of leg of spectacles 1 has a pot shape recess 17, as figure, shown in 9 the A-A section.Hinge 11 parts in back are bumped into this pot shape recess 17 and weld, and back hinge 11 leading sections have an aperture, and nail 41 passes this aperture and welds and constitute symmetrical hinge axis, and this hinge axis must apply in the pan 21 that certain inside pressure just can be loaded into the village 2.There is a leg-of-mutton spacer 8 front portion of described back hinge 11, and in order to the maximum openness of control catapult arm, it plays position-limiting action.Its making assembling process is as follows:

Nail young 41 is symmetrically welded firmly with five equilibrium at the pan of back hinge 11, back segment with back hinge 11 is welded on leg of spectacles 1 appropriate location again, for the depression bar 12 that makes back hinge 11 and card be pressed in limited impression 22 can produce an inside restoring force that acts on leg of spectacles 1 and the village 2 jointly, leg of spectacles 1 and back hinge 11 require when welding to guarantee that the hinge axis of back hinge 11 can not directly enter the pan 21 in the village 2, make back hinge 2 and leg of spectacles 3 opened with certain angle and must apply certain external force, could be pack into the pan 21 in the village 2 of the hinge axis of back hinge 11.Otherwise just can not form recovery elastic force to the inside.After described pan 21 is aimed at the hinge axis of back hinge 2, screw lock screw 23 and close up fixing.

Figure 10 is that the catapult arm of present embodiment three is presented by following of external force effect to open duty.The head of promptly simulating lens wearer is bigger, to produce toward extrapolability leg of spectacles 1, the hinge axis of this moment back hinge 11 (nail young 41) together with back hinge 11 and leg of spectacles 1 along 21 rotations of pan, 2 outside center section has a projection drift angle 20 in the village, there is certain angle on the plane 16 of pan 21 tops in it and the village 2, impel leg of spectacles 1 one to be subjected to outward thrust, because coaxial rotation, the depression bar 12 of leg of spectacles 1 front end is by the village 2 corner position 20 jack-up with projection.Leg of spectacles 1 forms certain angle of cut with back hinge 11, at this moment, the spacer 8 on the back hinge 11 withstands the drift angle 18 of the village 2 afterbody, thereby has limited the open angle in the village 1, has guaranteed that the catapult arm of this example has maximum opening angle.Cancel external force, because leg of spectacles 1 has inside elastic restoring force, force the village 2 to come back to virgin state, it is parallel that 2 position, plane 16, village this moment and the depression bar 12 of glasses 1 front end are close to, spacer 8 inoperative (Figure 11).

Figure 12 is the semi-collapsed condition synoptic diagram of the catapult arm of present embodiment three.When leg of spectacles 1 rotates inwards, the depression bar 12 of glasses 1 front end is by the village 2 back endvertex 18 jack-up, the inside recovery elastic force that acts on leg of spectacles 1 is strengthened, and forces the village 2 rear end prosposition 24 and 1 preceding 12 parallel being close to of end-post of leg of spectacles, and leg of spectacles 1 rotation rapidly turns back.

Claims

1, a kind of catapult arm that is used for glasses, comprise leg of spectacles (1) He Zhuantou (2), it is characterized in that: described village head (2) is provided with pan (21) and limited impression (22), the leading section of leg of spectacles (1) extends respectively and has appropriateness flexible back hinge (11) and depression bar (22), back hinge (11) is connected with pan (21) movable axis, and the front portion card of depression bar (12) is pressed in the limited impression (22);

The length of described limited impression (22) is slightly larger than card and is pressed in depression bar (12) in this stopper slot (22), and promptly depression bar (12) can be done small distance along stopper slot (22) and slides; The depression bar (12) that described back hinge (11) and card are pressed in limited impression (22) produces an inside restoring force that acts between leg of spectacles (1) He Zhuantou (2) jointly; Toward extrapolation leg of spectacles (1), back hinge (11) is rotated, and depression bar (12) is inconsistent up to the rear portion of depression bar (12) front end and limited impression (22) to front slide along limited impression (22), cancels external force, be subjected to the effect of described restoring force, leg of spectacles (1) the original position of rebounding.

2, the catapult arm that is used for glasses according to claim 1, it is characterized in that: there is a groove hinge position of described village head (2) back segment, the front portion of leg of spectacles (1) puts in this groove and makes hinge axis with screw (13) as described back hinge (11), described depression bar (12) is the cover tubular, this sleeve rear sleeve welds in the anterior appropriate location of leg of spectacles (1), and the anterior card of sleeve is pressed in the stopper slot (22) of described village head (2).

3, the catapult arm that is used for glasses according to claim 1, it is characterized in that: described village head (2) is for being welded on two little intermediate plates on the spectacle-frame, the recessed hinge position broad of its back segment, and have a pan (21), its front portion is provided with a lock screw (23) that is used to regulate two intermediate plate distances, and the outside center section of village head (2) has a protruding drift angle (20); The leading portion of described leg of spectacles (1) is close to described village portion's prosposition (16) end to end as depression bar (12), the stage casing part of leg of spectacles (1) has a pot shape recess (17), back hinge (11) part is bumped into this pot shape recess (17) and welds, back hinge (11) leading section has an aperture, nail (41) passes this aperture and welds the symmetrical hinge axis of formation, and this hinge axis must apply certain inside pressure and just can be loaded in the pan (21) of village head (2).

4, the catapult arm that is used for glasses according to claim 1, it is characterized in that: described village head (2) back segment is provided with pan (21), its back is provided with a limited impression (22), back hinge (11) and leg of spectacles (1) are circular steel wire, back hinge (11) is bent to the ear shape, its head (111) is vertical with middle part (112), and the afterbody (113) of back hinge (11) is fixed on suitable position, leg of spectacles (1) middle part by sleeve; The front portion of leg of spectacles (1) is pressed in the limited impression (22) of described village head (2) as depression bar (12) card, and the head (111) of back hinge (11) forces and inserts in the described pan (21).

5, the catapult arm that is used for glasses according to claim 2, it is characterized in that: the depression bar of described cover tubular (12) has a triangular hill in the middle.

6, the catapult arm that is used for glasses according to claim 3 is characterized in that: there is a leg-of-mutton spacer (8) front portion of described back hinge (11).

7, the bullet merit arm that is used for glasses according to claim 4, it is characterized in that: the leading portion that depression bar (12) is stated at the place has inflection point, an obtuse angle.

8, the catapult arm that is used for glasses according to claim 4 is characterized in that: described limited impression 22 is right angle groove.