CN2277084Y

CN2277084Y - Length adjustable earpiece

Info

Publication number: CN2277084Y
Application number: CN 96214016
Authority: CN
Inventors: 林茂伸
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-06-25
Filing date: 1996-06-25
Publication date: 1998-03-25
Anticipated expiration: 2006-06-25

Abstract

The utility model relates to a pair of length adjustable glasses legs. The utility model is characterized in that each glasses leg is composed of the first supporting frame and the second supporting frame, the first supporting frame and the second supporting frame are mutually scarf joint, the first supporting frame and the second supporting frame are connected with a glasses frame, each supporting frame is provided with a longitudinal channel, the tail end of each first supporting frame and the front end of each second supporting frame are respectively provided with a sliding part, the width of the sliding part is the same as the width of the longitudinal channel, the front end of each sliding part is provided with a stop block, the width of the stop block is wider than the width of the longitudinal channel, and the stop blocks of the first supporting frames and the stop blocks of the second supporting frames are mutually clamped in the longitudinal channels. When the glasses is worn, the second supporting frame is stretched properly, because the sliding part and the channel maintain a fairly tightness, and the utility model can be clamped on the ears by taking advantages of the elastic force of the glasses legs and the films arranged at the ends of the second supporting frames.

Description

Be convenient to adjust the leg of spectacles of length

The utility model belongs to the glasses annex, particularly is convenient to adjust the leg of spectacles of length.

Leg of spectacles commonly used, as shown in Figure 1, be to be connected with mirror leg 10 with screw respectively in the picture frame both sides, 11, each mirror leg, respectively by first support 100,100 ', second support 101,101 ' socket combination, first, be respectively equipped with longitudinal channels 102 in the middle of two supports, 102 ', 103,103 ', in addition, at first support 100,100 ' end is sequentially with projection 104,104 ', be arranged in second support 101 respectively, 101 ' conduit 103, in 103 ', in addition at second support 101,101 ' front end respectively is provided with screw 105,105 ', screw 105, respectively be provided with screw N in 105 ', N ', so as with first support 100,100 ' socket is fixed.Second support 101,101 ' stretch earlier when wearing during to suitable length, with instrument screw N, N ' are tightened again, reach the purpose of use.There is following shortcoming in this structure:

Palpus subdrilling screw 105,105 ' when 1, assembling, and need to connect with screw N, N ', cumbersome.

When 2, adjusting the mirror leg length, must adjust screw N, N ' with screwdriver, if it is exert oneself the excessive support that then damages easily, too small then loosening easily.

3, the screw slotted eye has the danger that scratches face very easily because of the excessive slight crack that produces of exerting oneself when wearing.

The purpose of this utility model is that a kind of leg of spectacles of being convenient to adjust length will be provided, and its assembling is adjusted the mirror leg length conveniently easily, and is safe and practical.

The purpose of this utility model is achieved in that this is convenient to adjust the leg of spectacles of length, each mirror leg is to be rabbeted mutually by first support of the picture frame of ining succession and second support to form, on each support, be equipped with longitudinal channels, first support is terminal all respectively to be respectively equipped with the identical sliding part of width and conduit with the second support front end, be equipped with the block that is slightly wider than the conduit width at the sliding part front end, the block with first, second two stands during combination snaps in the other side's the conduit mutually.When wearing glasses, second support that suitably stretches because of keeping suitable tightness between sliding part and conduit, and is borrowed the elastic force and the terminal set film of second support of mirror leg, can be clamped on cheek or the ear.

The utility model advantage:

1, wearing the people can any instrument, adjusts the mirror leg length voluntarily, reaches the most comfortable position, so easy to use, it is fast to regulate the speed.

2, safe and reliable, because of the danger of any scuffing face can not take place.

The utility model concrete structure is provided by following examples and accompanying drawing thereof:

Fig. 1 is that existing leg of spectacles is installed the back stereographic map.

Fig. 2 is the utility model perspective exploded view.

Fig. 3 is side cross-sectional schematic when first support passes the conduit of second support in the utility model.

Fig. 4 is that synoptic diagram is looked on the left side of Fig. 3.

Fig. 5 is that first, second support of the utility model engages the trailing flank cross-sectional schematic mutually.

Fig. 6 is that the utility model is connected the back stereographic map with picture frame.

Fig. 7 is the utility model user mode synoptic diagram ().

Fig. 8 is the utility model user mode synoptic diagram (two).

Describe in detail below in conjunction with accompanying drawing.

Referring to Fig. 2-8, this is convenient to adjust the leg of spectacles of length, by with screw N1, N2 is installed in picture frame 2 respectively, mirror leg 4 on 3,5 constitute, it is characterized in that mirror leg 4,5 orders are respectively by

first support

40,50 reach and

second support

41,51 mutual interlockings combine, first, be sequentially with the conduit 400 of vertical perforation in the middle of second support, 500,410,510, at the end of first support and the front end of second support, be sequentially with the width sliding part 401 identical respectively with the conduit width, 501,411,511, front end at each sliding part, be sequentially with width and be a bit larger tham the block 402 of conduit width, 502,412,512, wherein, the block 402 of first support, 502 pass the conduit 410 of second support respectively, 510, the block 412 of second support, 512 pass the conduit 400 of first support, 500, two supports of every side mirror leg engage mutually.During assembling, conduit is strutted slightly, block can be passed the other side's conduit.In addition, on second support, 41,51 inner wall at end, order is posted film 413,513.

The utility model is because of the sliding part of first, second support, its width is all identical with the conduit width that is passed, so both can in conduit, slide, keep certain tight ness rating again and between conduit, add and be positioned at conduit opposite side block and play the effect of holding out against, so between first, second support, keep advantages of good positioning effect.

When the utility model uses, can adjust the mirror leg length by the size of own shape of face,

second support

41,51 promptly stretches, make in the slip 401,501,411,511 under corresponding block 402,502,412,512 orientations, in corresponding conduit 400,500,410,510, slide, to suitable length, elastic force effect and film 413,513 in the time of can utilizing the mirror leg to launch, glasses are worn on cheek or ear, shown in Fig. 7,8, the time spent can not withdraw second support, as shown in Figure 6, so that preserve.

Claims

1, be convenient to adjust the leg of spectacles of length, by with screw N1, N2 is installed in picture frame (2) respectively, (3) the mirror leg (4) on, (5) constitute, it is characterized in that: mirror leg (4), (5) order is respectively by first support (40), (50) reach and second support (41), (51) interlocking combines mutually, first, be sequentially with the conduit (400) of vertical perforation in the middle of second support, (500), (410), (510), at the end of first support and the front end of second support, be sequentially with the width sliding part (401) identical respectively with the conduit width, (501), (411), (511), front end at each sliding part, be sequentially with width and be a bit larger tham the block (402) of conduit width, (502), (412), (512), wherein, the block of first support (402), (502) pass the conduit (410) of second support respectively, (510), the block of second support (412), (512) pass the conduit (400) of first support, (500), two supports of every side mirror leg engage mutually.

2,, it is characterized in that on second support (41), (51) inner wall at end order is posted film (413), (513) by the described leg of spectacles of being convenient to adjust length of claim 1.