CN215264276U

CN215264276U - Mirror leg, bluetooth glasses and wireless charging device

Info

Publication number: CN215264276U
Application number: CN202121214750.0U
Authority: CN
Inventors: 曹中利
Original assignee: Goertek Inc
Current assignee: Goertek Inc
Priority date: 2021-06-01
Filing date: 2021-06-01
Publication date: 2021-12-21
Anticipated expiration: 2031-06-01

Abstract

The utility model belongs to the technical field of electronic equipment, concretely relates to mirror leg, bluetooth glasses and wireless charging device, this mirror leg include casing, receiving coil and battery, and the one end of casing is equipped with joint portion, and receiving coil encircles joint portion and sets up, and the battery setting is in the casing and be connected with the receiving coil electricity. According to the utility model discloses mirror leg, receiving coil are located the tip of mirror leg, and fix through joint portion, and joint portion has made clear the position of receiving coil, and the user only need guarantee when charging to the mirror leg that joint portion and wireless charging device cooperate can, guarantee continuation and the validity of charging.

Description

Mirror leg, bluetooth glasses and wireless charging device

Technical Field

The utility model belongs to the technical field of electronic equipment, concretely relates to mirror leg, bluetooth glasses and wireless charging device.

Background

This section provides background information related to the present disclosure only and is not necessarily prior art.

In recent years, the technology of consumer electronics is rapidly developed, and electronic devices such as mobile phones and tablet computers are widely used by consumers. Consumers also have increasingly placed higher demands on the performance and reliability of electronic products.

Coil setting of bluetooth glasses's among the prior art mirror leg is inside the mirror leg, and the position of receiving coil can't be made clear, because can't make clear the position of receiving coil when using wireless charging device to charge, the problem that receiving coil is not in wireless charging device's the district that charges appears in the charging easily, can't guarantee wireless charging process's continuation and validity.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the problem that the current receiving coil can not be guaranteed to lead to the charging process to last in the charging district among the prior art at least. The purpose is realized by the following technical scheme:

the utility model discloses a first aspect provides a mirror leg, include:

the device comprises a shell, a clamping part and a locking part, wherein one end of the shell is provided with the clamping part;

a power receiving coil disposed around the clamping portion;

a battery disposed within the housing and electrically connected to the power receiving coil.

According to the utility model discloses mirror leg, receiving coil fix through joint portion, and joint portion has made clear the position of receiving coil, and the user only needs to guarantee when charging to the mirror leg that joint portion and wireless charging device cooperate can, guarantees continuation and the validity of charging.

In some embodiments of the present invention, the joint portion is a groove or a through hole, and the joint portion is circular or polygonal.

The utility model discloses a second aspect provides a mirror leg, include:

a shell, wherein one end of the shell is provided with a convex part,

a power receiving coil disposed in the boss,

According to the utility model discloses the mirror leg is fixed through the bellying, and the position of receiving coil has been made clear to the bellying, and the user only need guarantee when charging to the mirror leg that bellying and wireless charging device cooperation can, guarantee continuation and the validity of charging.

In some embodiments of the present invention, the protrusion is annular or polygonal.

The utility model discloses a third aspect provides a bluetooth glasses, include:

a mirror frame;

the other ends of the two glasses legs are detachably connected with the glasses frame, and the glasses legs are the glasses legs in the technical scheme.

The Bluetooth glasses according to the embodiment of the invention have the same advantages as the glasses legs, and the details are not repeated.

The utility model discloses a fourth aspect provides a wireless charging device for the mirror leg to above-mentioned technical scheme's bluetooth glasses charges, include:

the base body, the base body epirelief is equipped with the portion of accepting, the portion of accepting correspond to joint portion sets up, be provided with power supply coil in the portion of accepting.

According to the utility model discloses wireless charging device, when charging two mirror legs of bluetooth glasses, the joint portion of two mirror legs and the position of accepting the portion cooperation on the pedestal in charging process with two fixed mirror legs, the condition that leads to two mirror legs and wireless charging device to break away from because wireless charging device's slope or shake in avoiding the use guarantees wireless continuation and the validity of charging.

In some embodiments of the present invention, the wireless charging device further includes a first guiding element and a second guiding element connected to the first guiding element, the first guiding element and the second guiding element are all disposed on the base, the first guiding element, the second guiding element, the base and the receiving portion enclose a charging cavity for accommodating at least part of the temple.

In some embodiments of the present invention, the first guide is provided with a first positioning portion, the second guide is provided with a second positioning portion, two of the first positioning portion and the second positioning portion are provided with a first matching portion, the first matching portion is matched with the first positioning portion, and two of the second matching portion and the second positioning portion are provided with a second matching portion.

In some embodiments of the present invention, at least one support member is disposed in the charging chamber, a width of the support member is less than or equal to a width of the temple, the support member is engaged with the first guide to fix one of the temple, and the support member is engaged with the second guide to fix the other of the temple.

The fifth aspect of the utility model provides a wireless charging device for the mirror leg to above-mentioned technical scheme's bluetooth glasses charges, include:

the base body is provided with a bearing part and a power supply coil arranged around the bearing part, and the bearing part is arranged corresponding to the bulge part.

According to the utility model discloses wireless charging device, when charging two mirror legs of bluetooth glasses, the bellying of two mirror legs and the position of accepting the portion cooperation on the pedestal in charging process with two fixed mirror legs, because wireless charging device's slope or the condition that the shake leads to two mirror legs and wireless charging device to break away from in avoiding the use, guarantee wireless continuation and the validity of charging.

Drawings

Various other advantages and benefits will become apparent to those of ordinary skill in the art upon reading the following detailed description of the preferred embodiments. The drawings are only for purposes of illustrating the preferred embodiments and are not to be construed as limiting the invention. Also, like reference numerals are used to refer to like parts throughout the drawings. In the drawings:

fig. 1 is a schematic perspective view of a wireless charging device, a first temple and a second temple according to an embodiment of the present invention;

fig. 2 is an exploded schematic view of the wireless charging device shown in fig. 1;

fig. 3 is a top view of the base of the wireless charging device shown in fig. 1;

fig. 4 is a partially exploded schematic view of the wireless charging device shown in fig. 1;

fig. 5 is an exploded view of a first temple of the wireless charging device shown in fig. 1;

FIG. 6 is a cross-sectional view of FIG. 1;

fig. 7 is an enlarged schematic view of a structure shown in fig. 6 at a.

The reference symbols in the drawings denote the following:

1. a receiving part; 11. an upper shell; 12. a lower case; 13. a power supply coil;

2. a base body; 21. an upper cover; 22. a lower cover; 23. a circuit board; 24. a support member;

3. a guide structure; 31. a first guide member; 32. a second guide member; 311. a first positioning portion; 321. a second positioning portion;

4. a charging chamber; 41. an annular charging chamber; 42. a linear charging chamber;

5. a first temple; 51. a clamping part; 52. a housing; 53. covering; 54. a power receiving coil; 55. a battery; 56. a first mating portion;

6. a second temple; 61. a second mating portion.

Detailed Description

Exemplary embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. While exemplary embodiments of the present disclosure are shown in the drawings, it should be understood that the present disclosure may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the disclosure to those skilled in the art.

It is to be understood that the terminology used herein is for the purpose of describing particular example embodiments only, and is not intended to be limiting. As used herein, the singular forms "a", "an" and "the" may be intended to include the plural forms as well, unless the context clearly indicates otherwise. The terms "comprises," "comprising," "including," and "having" are inclusive and therefore specify the presence of stated features, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, steps, operations, elements, components, and/or groups thereof.

Although the terms first, second, third, etc. may be used herein to describe various elements, components, regions, layers and/or sections, these elements, components, regions, layers and/or sections should not be limited by these terms. These terms may be only used to distinguish one element, component, region, layer or section from another region, layer or section. Terms such as "first," "second," and other numerical terms when used herein do not imply a sequence or order unless clearly indicated by the context. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the example embodiments.

For convenience of description, spatially relative terms, such as "inner", "outer", "lower", "below", "upper", "above", and the like, may be used herein to describe one element or feature's relationship to another element or feature as illustrated in the figures. Such spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is turned over, elements described as "below" or "beneath" other elements or features would then be oriented "above" or "over" the other elements or features. Thus, the example term "below … …" can include both an orientation of above and below. The device may be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

As shown in fig. 1 to 7, according to the utility model discloses a bluetooth glasses of embodiment, including the picture frame and can dismantle two mirror legs of being connected with the picture frame, two mirror legs are first mirror leg 5 and second mirror leg 6 respectively. First mirror leg 5 and second mirror leg 6 include casing 52, receiving coil 54 and battery 55 respectively, and the one end of first mirror leg 5 and the one end of second mirror leg 6 all are equipped with joint portion 51, and receiving coil 54 encircles the setting of joint portion 51, and battery 55 sets up in casing 52 and is connected with receiving coil 54 electricity, and the other end of first mirror leg 5 and the other end of second mirror leg 6 all can dismantle with the picture frame and be connected. The power receiving coil 54 is fixed through the clamping portion 51, the position of the power receiving coil 54 is determined by the clamping portion 51, and when the user charges the glasses legs, the clamping portion 51 and the wireless charging device are matched only to ensure the continuity and effectiveness of charging. Be connected between the other end of first mirror leg 5 and the picture frame and between the other end of second mirror leg 6 and the picture frame can be dismantled, can realize rapid Assembly, and first mirror leg 5 and second mirror leg 6 can use with the picture frame cooperation of different specifications.

The detachable connection between the other end of the first glasses leg 5 and the glasses frame and between the other end of the second glasses leg 6 and the glasses frame can be clamping connection, screw connection or insertion connection.

In some embodiments of the present invention, the clamping portion 51 may form a groove with other portions of the housing 52, and the clamping portion 51 may also be a through hole. The catching portion 51 may be circular, elliptical or polygonal. In one embodiment, the engaging portion 51 is circular and has a through hole formed in the middle.

In another embodiment, the first temple 5 and the second temple 6 respectively comprise a casing 52, a power receiving coil 54 and a battery 55, one end of the first temple 5 and one end of the second temple 6 are both provided with a protruding portion, the power receiving coil 54 is arranged in the protruding portion, the battery 55 is arranged in the casing 52 and is electrically connected with the power receiving coil 54, and the other end of the first temple 5 and the other end of the second temple 6 are both detachably connected with the spectacle frame. Receive electric coil 54 and fix through the bellying, the position of receiving electric coil 54 has been made clear to the bellying, and when the user charges to the mirror leg, only need guarantee that bellying and wireless charging device cooperate can, guarantee the continuation and the validity of charging. The convex part is annular or polygonal.

In some embodiments of the present invention, the temple further comprises a cover 53, and the cover 53 is detachably connected to the housing 52.

In some embodiments of the present invention, the detachable connection between the housing 52 and the buckle cover 53 may be a joint, a screw connection or a plug connection, and the portion that is broken or damaged can only be replaced by the detachable connection, so that the replacement cost is reduced, and the power receiving coil 54 and the battery 55 can be repaired or replaced after the housing 52 and the buckle cover 53 are separated.

In some embodiments of the present invention, a sealing member may be further disposed between the housing 52 and the fastening cover 53, and after the assembly of the housing 52 and the fastening cover 53 is completed, the sealing member is in the state of being extruded and deformed, so as to prevent water vapor or dust from entering between the housing 52 and the fastening cover 53.

As shown in fig. 1 to 7, according to the utility model discloses a wireless charging device of embodiment for the mirror leg to bluetooth glasses charges, include:

the base body 2 is provided with a convex receiving part 1 on the base body 2, the receiving part 1 is arranged corresponding to the clamping part 51, and the power supply coil 13 is arranged in the receiving part 1.

According to the utility model discloses wireless charging device, when charging two mirror legs of bluetooth glasses, the cooperation between the portion of accepting 1 and the joint portion 51 of utilizing wireless charging device realizes the fixed to the mirror leg, guarantees that the position of two relative wireless charging device of mirror leg in the charging process keeps unchangeable, avoids in the use because wireless charging device's slope or shake lead to the condition that two mirror legs and wireless charging device break away from, guarantees wireless continuation and the validity of charging. The bluetooth glasses are charged through the power supply coil 13 and the power receiving coil 54, the power receiving coil 54 is electrically connected with the battery 55, and electric energy is stored in the battery 55.

In some embodiments of the present invention, according to the above, the joint portion 51 is circular, and a through hole is formed in the middle, and the receiving portion 1 can be matched with the inner side of the joint portion 51, and can also be matched with the outer side of the joint portion 51. In one embodiment, the receiving portion 1 is engaged with the inner side of the engaging portion 51, that is, the receiving portion 1 is engaged with the through hole, and the engaging portion 51 is disposed on the outer side of the receiving portion 1.

The utility model discloses an in some embodiments, wireless charging device still includes guide structure, and guide structure sets up on pedestal 2, and guide structure, pedestal 2 and accepting 1 enclose synthetic chamber 4 that charges that is used for holding the mirror leg. When the mirror leg to bluetooth glasses charges, put into the mirror leg and accept portion 1 and guide structure and inject the chamber 4 that charges, guarantee that charging process mirror leg is located charging chamber 4 always, avoid the condition that leads to mirror leg and wireless charging device to break away from in the use because wireless charging device's slope or shake. In addition, guide structure can guide the mirror leg to enter into and realize the butt joint of mirror leg and wireless charging device in charging chamber 4, has played the effect of location to make the mirror leg be located wireless charging device's the district that charges always, guarantee wireless continuation and the validity of charging. When wireless charging device charges two mirror legs, formed power coil 13 and received the inboard structure of coil 54, as long as put into the chamber 4 that charges with first mirror leg 5 and second mirror leg 6, can realize the replenishment of wireless charging device to the first mirror leg 5 and the second mirror leg 6 electric quantity of bluetooth glasses, the maximize has utilized the space.

In some embodiments of the present invention, as shown in fig. 1 to 4, the guiding structure includes a first guiding member 31 and a second guiding member 32, the first guiding member 31 is connected to the second guiding member 32 and symmetrically disposed, and the first guiding member 31, the second guiding member 32, the receiving portion 1 and the seat body 2 enclose the charging cavity 4. The first guide 31 and the second guide 32 are symmetrically arranged with respect to the symmetry plane of the holder body 2, so that the charging chamber 4 is also symmetrically arranged with respect to the symmetry plane of the holder body 2. The first guide 31 is provided with a first positioning portion 311, and the second guide 32 is provided with a second positioning portion 321.

In some embodiments of the present invention, the first positioning portion 311 and the second positioning portion 321 are used to position two temples, which may be: first positioning portion 311 for positioning first temple 5, and second positioning portion 321 for positioning second temple 6; second type, second positioning portion 321 for positioning first temple 5, first positioning portion 311 for positioning second temple 6; third, first positioning portion 311 is used for positioning first temple 5 and second temple 6, second positioning portion 321 is used for positioning first temple 5 and second temple 6, that is, first positioning portion 311 and second positioning portion 321 are respectively in contact with different positions of first temple 5, and first positioning portion 311 and second positioning portion 321 are respectively in contact with different positions of second temple 6; and combining the fourth mode and the above three modes.

In some embodiments of the present invention, as shown in fig. 1 to 5, in one embodiment, first positioning portion 311 is used for positioning first temple 5, and second positioning portion 321 is used for positioning second temple 6. As shown in fig. 1 to 5, the first temple 5 is provided with a first engaging portion 56, the first engaging portion 56 engages with the first positioning portion 311, the second temple 6 is provided with a second engaging portion 61, and the second engaging portion 61 engages with the second positioning portion 321.

In some embodiments of the present invention, the first positioning portion 311 may be a protrusion structure or a depression structure provided on the first guide 31, and the first temple 5 is engaged with the first positioning portion 311 in a concave-convex manner. Second positioning part 321 may be a convex structure or a concave structure provided on second guide 32, and second temple 6 is concavo-convex fitted with second positioning part 321.

In some embodiments of the present invention, as shown in fig. 1 to 4, the first positioning portion 311 is a recessed structure provided on the first guide 31, and the second positioning portion 321 is a recessed structure provided on the second guide 32.

In some embodiments of the present invention, as shown in fig. 1 to 4, the first positioning portion 311 is connected to the other position of the first guide 31 in a smooth transition manner, and the second positioning portion 321 is connected to the other position of the second guide 32 in a smooth transition manner.

In some embodiments of the present invention, two legs may be arranged in the charging chamber 4 in the horizontal direction, and two legs may be arranged in the charging chamber 4 in the vertical direction. In one embodiment, the two temples are arranged in a vertical direction within the charging chamber 4.

In some embodiments of the present invention, the shape of the charging cavity 4 may be adapted to the shape of two first temples 5 arranged in the vertical direction. The shape of the charging chamber 4 may be larger than the shape of the two first temples 5 arranged in the vertical direction, and a range in which wireless charging is possible is defined by the first guide 31, the second guide 32, and the receptacle 1.

In some embodiments of the present invention, as shown in fig. 1 to 4, the charging chamber 4 includes an annular charging chamber 41 and a linear charging chamber 42 communicated with the annular charging chamber 41, the joint portion 51 of the first temple 5 and the joint portion 51 of the second temple 6 are located in the annular charging chamber 41, at least one support 24 is provided in the linear charging chamber 42, the width of the support 24 is less than or equal to the width of the temples, the support 24 and the first guide 31 are used for fixing the first temple 5 of the two temples, and the support 24 and the second guide 32 are used for fixing the second temple 6 of the two temples. The supporter 24 functions to support the second temple 6 and prevent one end of the second temple 6 from being suspended to separate the second temple 6 from the charging chamber 4 by gravity.

In some embodiments of the present invention, the receiving portion 1 and the seat body 2 may be detachably connected or non-detachably connected.

The utility model discloses a in some embodiments, when being connected for dismantling between accepting 1 and the pedestal 2, can be for joint, screw connection or grafting, can only change the part that breaks down or damages through the mode that can dismantle the connection, reduced the replacement cost, and can be convenient for accomodate after separating accepting 1 and pedestal 2, can be provided with the space that is used for holding accepting 1 at the opposite side of pedestal 2.

In some embodiments of the present invention, when the connection between the receiving portion 1 and the seat body 2 is non-detachable, the receiving portion 1 and the seat body 2 are integrated, bonded or welded, and the non-detachable connection can strengthen the connection strength between the receiving portion 1 and the seat body 2, thereby ensuring the position of the charging cavity 4.

In some embodiments of the present invention, the guiding structure and the seat body 2 can be detachably connected or non-detachably connected.

The utility model discloses an in some embodiments, when being connected for dismantling between guide structure and pedestal 2, can be for joint, screw connection or grafting, can only change the part that breaks down or damages through the mode that can dismantle the connection, reduced the replacement cost, and can be convenient for accomodate after separating guide structure and pedestal 2, can be provided with the space that is used for holding guide structure at the opposite side of pedestal 2.

The utility model discloses a in some embodiments, when being undetachable between guide structure and the pedestal 2, for integration, bonding or welding between guide structure and the pedestal 2, the connection strength between guide structure and the pedestal 2 can be strengthened to the undetachable connection, and then guarantees the position of the chamber 4 that charges.

In some embodiments of the present invention, in one embodiment, the guiding structure is non-detachably connected to the base body 2, and further, the guiding structure is integrated with the base body 2.

In some embodiments of the present invention, as shown in fig. 1 to 4, a power supply coil 13 is disposed in the receiving portion 1, the receiving portion 1 includes an upper shell 11 and a lower shell 12, the upper shell 11 is fastened to the lower shell 12, the power supply coil is enclosed between the upper shell 11 and the lower shell 12, the power supply coil 13 is disposed in the power supply coil and is accommodated in the cavity, and the upper shell 11 is detachably connected to the lower shell 12.

The utility model discloses an in some embodiments, the dismantlement between epitheca 11 and the inferior valve 12 is connected can be for joint, screw connection or grafting, can only change the part that breaks down or damage through the mode that can dismantle the connection, has reduced the replacement cost, can overhaul or change power supply coil 13 after separating epitheca 11 and inferior valve 12.

The utility model discloses an in some embodiments, still can be provided with the sealing member between epitheca 11 and the inferior valve 12, after epitheca 11 and inferior valve 12 assembly were accomplished, the sealing member was in and can be played by extrusion deformation state and prevent that steam or dust from entering into between epitheca 11 and the inferior valve 12.

In some embodiments of the present invention, as shown in fig. 1 to 4, a circuit board 23 is disposed in the seat body 2, the power supply coil 13 is electrically connected to the circuit board 23, the seat body 2 includes an upper cover 21 and a lower cover 22, the upper cover 21 is fastened on the lower cover 22, a cavity is defined between the upper cover 21 and the lower cover 22, the circuit board 23 is disposed in the cavity, and the upper cover 21 and the lower cover 22 are detachably connected.

The utility model discloses an in some embodiments, the connection of dismantling between upper cover 21 and the lower cover 22 can be for joint, screw connection or grafting, can only change the part that breaks down or damages through the mode of dismantling the connection, has reduced the replacement cost, can overhaul or change circuit board 23 after separating upper cover 21 and lower cover 22.

In some embodiments of the present invention, a sealing member may be further disposed between the upper cover 21 and the lower cover 22, and after the upper cover 21 and the lower cover 22 are assembled, the sealing member is in the state of being extruded and deformed to prevent water vapor or dust from entering between the upper cover 21 and the lower cover 22.

The utility model discloses an in some embodiments, wireless charging device can with the mains connection in order to charge to the bluetooth glasses, also can set up battery 55 in wireless charging device.

According to the utility model discloses wireless charging device of another embodiment for the mirror leg to bluetooth glasses charges, include:

the base body 2 is provided with a receiving part 1 and a power supply coil 13 arranged around the receiving part 1, and the receiving part 1 is arranged corresponding to the protruding part.

According to the utility model discloses wireless charging device, when charging two mirror legs of bluetooth glasses, the cooperation that utilizes wireless charging device's accepting part 1 and between the bellying realizes the fixed to the mirror leg, guarantees that the position of two relative wireless charging device of mirror leg in the charging process keeps unchangeable, avoids in the use because wireless charging device's slope or shake lead to the condition that two mirror legs and wireless charging device break away from, guarantees wireless continuation and the validity of charging. The bluetooth glasses are charged through the power supply coil 13 and the power receiving coil 54, the power receiving coil 54 is electrically connected with the battery 55, and electric energy is stored in the battery 55. Other structures of the wireless charging device of this embodiment are the same as those of the wireless charging device of another embodiment, and are not described herein again.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A temple, comprising:

a power receiving coil disposed around the clamping portion;

2. The temples of claim 1, wherein said seizing portion is a groove or a through hole, and said seizing portion is circular or polygonal.

3. A temple, comprising:

a shell, wherein one end of the shell is provided with a convex part,

a power receiving coil disposed in the boss,

4. The temple of claim 3 wherein said boss is annular or polygonal.

5. A Bluetooth eyewear, comprising:

a mirror frame;

two temples, the other ends of both of which are detachably connected with the spectacle frame, wherein the temples are the temples according to any one of claims 1-4.

6. A wireless charging device for charging the temples of claim 1 or 2, comprising:

7. The wireless charging device of claim 6, further comprising a first guide and a second guide connected to the first guide, wherein the first guide and the second guide are disposed on the base, and wherein the first guide, the second guide, the base and the receptacle enclose a charging cavity for receiving at least a portion of the temple.

8. The wireless charging device according to claim 7, wherein a first positioning portion is provided on the first guide, a second positioning portion is provided on the second guide, a first engaging portion is provided on one of the two temples, the first engaging portion engages with the first positioning portion, and a second engaging portion is provided on the other of the two temples, the second engaging portion engages with the second positioning portion.

9. The wireless charging device of claim 7, wherein at least one support member is disposed in the charging chamber, the support member has a width equal to or less than a width of the temple arm, the support member cooperates with the first guide member to fix one of the temple arms, and the support member cooperates with the second guide member to fix the other of the temple arms.

10. A wireless charging device for charging the temples of claim 3 or 4, comprising: