TWM592746U - Mask bow device of work cap - Google Patents

Abstract

A mask bow device for a working cap includes a setting unit, a fixing unit, and two pivotal setting units. The setting unit includes two connecting pieces suitable for being respectively arranged on the working cap, and two inner positioning pieces respectively connected with the connecting pieces, each inner positioning piece forming a plurality of inner tooth patterns extending outward. The fixing unit includes a fixing bow suitable for connecting the face shield, and two outer positioning pieces respectively pressed against the inner positioning pieces, each of the outer positioning pieces forming a plurality of inwardly extending and meshing with the inner tooth patterns External tooth pattern. The internal tooth patterns and the external tooth patterns that are meshed with each other can be stagedly rotated, so that the user can adjust the face shield to an appropriate inclination angle in stages according to their own needs.

Description

Face mask bow device of working hat

The invention relates to a face mask bow device, in particular to a face mask bow device which is used for connecting a face shield and is arranged on a working cap.

Referring to FIG. 1, a general working cap 1 includes a cap body 11, a lower arch 12 that is clamped to the front edge of the cap body 11, and a cap that cooperates with the lower arch 12 to be sleeved on the cap body 11 A fixing belt 13, an upper bow 14 surrounding the outside of the lower bow 12 and used to connect a face shield 140, two through the lower bow 12 and the upper bow 14 to pivot the upper bow 14 Locking pieces 15 and a plurality of locking pieces 15 on the lower arch 12 are respectively provided for the locking pieces 15 to be penetrated and fixed between the upper arch 14 and the locking pieces 15, and two are respectively The fixing member 17 locked on the locking members 15 and located inside the lower arch 12 (only one of them is shown in FIG. 1 due to viewing angle).

The locking pieces 15, the gaskets 16, and the fixing pieces 17 of the working cap 1 are made of metal, but in many cases, the working cap 1 needs to have insulating properties to correspond to the flooding of electrical equipment or high-voltage power Environment, and the aforementioned metal locking member 17 is conductive, so it cannot have a perfect protective effect. In addition, when the upper bow 14 rotates relative to the lower bow 12, the pivotal connection between the two is in surface contact, and there is no clear position adjustment and fixing force, which makes it difficult for the lower bow 14 to be fixed at an appropriate tilt angle And, after adjusting to the required angle, it is easy to produce deviation due to insufficient fixing force.

Therefore, the purpose of the present invention is to provide a mask bow device for a working cap that can provide anti-electric protection in an electric environment.

Therefore, the mask bow device of the novel working hat is suitable for connecting a face shield. The mask bow device includes a setting unit, a fixing unit, and two pivoting units pivotally connecting the setting unit and the fixing unit.

The setting unit includes two connecting pieces suitable for being respectively arranged on the left and right sides of the working cap, and two inner positioning pieces respectively connecting the connecting pieces, and each inner positioning piece forms a plurality of inner tooth patterns extending outward.

The fixing unit includes a fixing bow with two ends respectively located outside the connecting pieces and suitable for connecting the face shield, and two outer positioning pieces respectively pressed against the inner positioning pieces, each of the outer positioning pieces forming a plurality of facing inwards The external tooth pattern extending and meshing with the internal tooth pattern.

Each pivoting unit includes a pivot that penetrates the corresponding inner positioning member and the corresponding outer positioning member, and a locking device that is locked on the pivot and cooperates with the pivot to sandwich the setting unit and the fixing unit And a set of insulating pads arranged on the pivot and sandwiched between the fixing unit and the locking member, the pivot can rotate relative to the inner positioning member and drive the fixing unit to rotate, The locking device is made of insulating material.

The effect of the new type is that, because the insulating pads and the locking pieces that are exposed are all made of insulating materials, they are suitable for the environment full of electric equipment or high voltage power, which can effectively prevent electric shock and have better protection effects In addition, when the user turns the face shield, the fixed bow will be rotated relative to the connecting pieces, and the internal tooth patterns and the external tooth patterns that are engaged with each other can be rotated in stages at this time. Allows users to adjust the face shield to an appropriate inclination angle according to their own needs, improving the convenience of use, and the internal tooth patterns and the external tooth patterns can provide sufficient fixing force to make it difficult to deflect after adjustment Bit.

Before the present invention is described in detail, it should be noted that in the following description, similar elements are denoted by the same number.

Referring to FIGS. 2, 3, and 4, this is a first embodiment of the mask bow device of the new working hat 2, which is suitable for connecting a mask 21. The mask bow device includes a setting unit 3, a fixing unit 4, and two pivoting units 5 that are pivotally connected to the setting unit 3 and the fixing unit 4 from the left and right sides, respectively. The setting unit 3 includes two connecting members 31 suitable for being disposed on the left and right sides of the working cap 2 respectively, and two internal positioning members 32 integrally connected to the front ends of the connecting members 31 respectively. In the first embodiment, slots 22 are provided on the left and right sides of the working cap 2 to insert and fix the connecting members 31 in the slots 22, but they can also The installation and fixing of other mechanisms are not limited to the aforementioned structure. Each inner positioning member 32 surrounds a circular hole-shaped opening 321, and forms a plurality of annular arrangement on the outer side of each other to surround the inner tooth pattern 322 of the opening 321, the inner tooth patterns 322 extend outward in the left-right direction . The number of these internal tooth patterns 322 and the distance between them can be adjusted according to actual needs, and is not limited to the gear-like connection in this case.

The fixing unit 4 includes a fixing arch 41 that is generally arc-shaped and has two ends located outside the connecting members 31, and two outer positioning members 42 located inside the fixing arch 41 and outside the inner positioning members 32. The fixed bow 41 has a bow body portion 411 suitable for connecting the face shield 21, and two lug portions 412 protruding from the right and left opposite ends of the bow body portion 411, respectively. Each lug portion 412 is pressed against the outer side of the corresponding outer positioning member 42 and surrounds a square limiting hole 413. Each outer positioning member 42 is in the shape of a ring and surrounds a limiting slot 421 that is connected to and aligned with the limiting hole 413 and that is also square. The outer positioning member 42 forms a plurality of annular arrangements on the inner side of each other to surround the The outer tooth pattern 422 extends inwards and limits the slot 421. The outer positioning member 42 is pressed against the corresponding inner positioning member 32, so that the outer tooth patterns 422 of the outer positioning member 42 are engaged with the inner tooth patterns 322 of the inner positioning member 32.

Each pivoting unit 5 is provided with a pivot 51 corresponding to the inner positioning member 32, the corresponding outer positioning member 42 and the corresponding lug portion 412 in sequence, and a locking member 52 locked to the outer end of the pivot 51 , And an insulating pad 53 disposed on the pivot 51 and sandwiched between the lug portion 412 and the locking member 52. The pivot shaft 51 has a blocking portion 511 located inside the inner positioning member 32 and having a size larger than the opening 321, and a boss portion 512 extending outward from the blocking portion 511 and pivotally disposed in the opening 321 1. A limiting block portion 513 extending outward from the boss portion 512 and passing through a limiting groove 421 corresponding to the outer positioning member 42 and a limiting hole 413 corresponding to the lug portion 412, and a limiting block portion 513 formed by the limiting portion The block portion 513 extends outward and penetrates a bolt portion 514 corresponding to the insulating pad 53, and the end for the locking member 52 to lock. The boss portion 512 has a cylindrical shape, and the limit block portion 513 has a square column shape. Therefore, when the pivot 51 rotates, the boss portion 512 can freely rotate in the opening 321, and the limit The block portion 513 is limited by the limiting hole 413 and the limiting groove 421 to drive the outer positioning member 42 and the lug portion 412 to rotate. It should be particularly noted that, the limiting grooves 421 and the limiting holes 413 may also be other polygonal holes, and the boss portions 512 are polygonal columns of corresponding shapes. The locking device 52 and the insulating pad 53 are made of insulating materials, so they are suitable for electric equipment or high-voltage power-filled environments, which can effectively prevent electric shock and have better protection effects. In the first embodiment, the material of the insulating pad 53 is selected from thermoplastic elastomer (TPE), rubber, or silicone.

The blocking portion 511 of each pivot 51 cooperates with the corresponding locking member 52 to sandwich the corresponding inner positioning member 32, the corresponding outer positioning member 42, the corresponding lug portion 412, and the corresponding insulating pad 53 (in order from inside to outside). When the user pulls the face shield 21, the fixed bow 41 will drive the pivot shafts 51 to rotate through the lugs 412, respectively, and then drive the outer positioning members 42 to rotate, because the inner positioning members 32 do not Will be rotated by the pivots 51, so each outer positioning member 42 will rotate relative to the corresponding inner positioning member 32, so that the outer tooth patterns 422 of the outer positioning member 42 are along the inner positioning members 32 The internal tooth pattern 322 rotates to produce the effect of a segment of rotation, allowing the user to adjust the face shield 21 to a suitable tilt angle according to the number of segments, to avoid the user's distress caused by the face shield 21 sliding after adjusting the position.

Referring to FIGS. 5 and 6, the insulating pad 53 of each pivoting unit 5 can also form a plurality of ridges 531 corresponding to the locking member 52 on the outer side as shown in FIG. 5. The ridges 531 can be The tooth shape or the wave shape increases the friction between the insulating pad 53 and the locking member 52, thereby increasing the stability of the fixing. Of course, as shown in FIG. 6, a plurality of protrusions 521 may be formed on the inner surface of the locking member 52 to catch the insulating pad 53.

Referring to FIGS. 7 and 8, this is a second embodiment of the mask bow device of the new working hat 2. This second embodiment is substantially the same as the first embodiment, except for the following: the fixing unit 4 The fixing bow 41 does not have the lug portions 412, and the outer positioning members 42 are integrally connected to both ends of the fixing bow 41, so each outer positioning member 42 is sandwiched by the inner positioning member 32 And the insulating pad 53, the boss portion 512 of each pivot 51 only penetrates the limiting groove 421 of the outer positioning member 42, and through the external tooth pattern 422 formed on the inner surface of the outer positioning member 42 and Corresponding to the inner teeth 322 of the inner positioning member 32, the effect of segment adjustment can still be achieved. The second embodiment provides an implementation aspect that can reduce the number of components.

In summary, since the insulating pads 53 and the locking pieces 52 that are exposed are all made of insulating materials, they are suitable for environments where electrical equipment or high voltage power is flooded, which can effectively prevent electric shock and have better protection In addition, the present invention allows the user to rotate the face shield 21 in a stepwise manner when pulling the face shield 21, so that the face shield 21 can be easily adjusted to a desired tilted position, and after adjustment The bite force between the tooth pattern 422 and the inner tooth patterns 322 is positioned to prevent the face shield 21 from shifting due to its own weight after adjustment, so it can really achieve the purpose of new cost.

However, the above are only examples of the new model. When the scope of the new model cannot be limited by this, any simple equivalent changes and modifications made according to the patent application scope and patent specification content of the new model are still regarded as Within the scope of this new patent.

2: work cap 21: face shield 22: slot 3: setting unit 31: Connector 32: inner positioning piece 321: opening 322: Internal tooth pattern 4: fixed unit 41: fixed bow 411: Bow body 412: Lugs 413: Limit hole 42: External positioning piece 421: Limit slot 422: External tooth pattern 5: pivot unit 51: pivot 511: stop 512: Boss 513: Limit block 514: Bolt part 52: Lock set 521: Convex 53: Insulation pad 531: convex pattern

Other features and functions of the present invention will be clearly presented in the embodiments referring to the drawings, in which: Fig. 1 is an exploded perspective view illustrating a conventional working cap; FIG. 2 is an exploded perspective view illustrating a first embodiment of the mask bow device of the novel working cap; Fig. 3 is a perspective view illustrating the combined state of Fig. 2; 4 is a top cross-sectional view illustrating the cross-sectional shape of the pivotal joint of the first embodiment; 5 is a perspective view illustrating another aspect of an insulating pad in the first embodiment; 6 is a perspective view illustrating another aspect of a locking member in the first embodiment; 7 is an exploded perspective view illustrating a second embodiment of the mask bow device of the novel working cap; and FIG. 8 is a top cross-sectional view illustrating the cross-sectional view of the pivotal joint of the second embodiment.

2: work cap

21: face shield

22: slot

3: setting unit

31: Connector

32: inner positioning piece

321: opening

322: Internal tooth pattern

4: fixed unit

41: fixed bow

411: Bow body

412: Lugs

413: Limit hole

42: External positioning piece

421: Limit slot

422: External tooth pattern

5: pivot unit

51: pivot

511: stop

513: Limit block

514: Bolt part

52: Lock set

53: Insulation pad

Claims (8)

A face mask bow device for a working cap, suitable for connecting a face shield, the face mask bow device includes: One setting unit, including two connecting pieces suitable for being respectively arranged on the left and right sides of the working cap, and two inner positioning pieces respectively connecting the connecting pieces, each inner positioning piece forming a plurality of inner tooth patterns extending outward; A fixing unit, including a fixing bow with both ends located outside the connecting pieces and suitable for connecting the face shield, and two outer positioning pieces respectively pressed against the inner positioning pieces, each outer positioning piece forming a plurality of directions External teeth that extend internally and mesh with these internal teeth; and Two pivot setting units, pivotally connected to the setting unit and the fixing unit, each pivot setting unit includes a pivot shaft through which the corresponding inner positioning member and the corresponding outer positioning member are penetrated, and a lock set on the pivot shaft and connected with the pivot The shaft cooperates with a locking member sandwiching the setting unit and the fixing unit, and a set of insulating pads disposed on the pivot and sandwiched between the fixing unit and the locking member, the pivot can be Relative to the inner positioning member rotating and driving the fixing unit to rotate, the locking member is made of insulating material. The mask bow device of the working hat as described in claim 1, wherein the fixed bow of the fixing unit has a bow body portion, and two lug portions protruding from the left and right opposite ends of the bow body portion, each lug portion It is sandwiched between the corresponding insulating pad and the corresponding external positioning member. The mask bow device of the working hat according to claim 2, wherein each inner positioning member surrounds a circular hole-shaped opening, each outer positioning member surrounds a limiting groove, and each lug portion surrounds a communication The limiting holes of the limiting slot, the limiting slots and the limiting holes are polygonal holes of the same shape, each pivot has a stop portion located inside the corresponding inner positioning member and having a size larger than the opening 1. A boss portion extending outwardly from the stopper portion and pivotally disposed in the opening, a limit groove and a corresponding lug portion extending outwardly from the boss portion and penetrating a corresponding external positioning member The limiting block part of the limiting hole, and a bolt part extending outward from the limiting block part and piercing the corresponding insulating pad, and the end is provided with a corresponding locking part for locking, the limiting block part is The shape corresponds to the polygonal column of the limiting groove and the limiting hole, and the maximum outer diameter is smaller than the diameter of the opening. The mask bow device of the working hat according to claim 1, wherein the outer positioning members of the fixing unit are integrally connected to both ends of the fixing bow, respectively. The mask bow device of the working hat according to claim 4, wherein each inner positioning member surrounds a circular hole-shaped opening, each outer positioning member surrounds a polygonal hole-shaped limiting slot, and each pivot has A stop portion located inside the corresponding inner positioning member and having a size larger than the opening, a boss portion extending outward from the stop portion and pivotally disposed in the opening, and a boss portion extending outward from the boss portion And a limiting block portion of the limiting groove corresponding to the outer positioning member is penetrated, and a corresponding insulating pad is extended from the limiting block portion, and the end is locked in the corresponding locking member In the bolt part, the limiting block part is a polygonal column whose shape corresponds to the limiting slot, and the maximum outer diameter is smaller than the opening diameter. The mask bow device of the working hat according to claim 1, wherein the insulating pad of each pivoting unit has an outer side surface formed with a plurality of convex patterns and abutting the corresponding locking member. The mask bow device of the working hat according to claim 1, wherein the locking member of each pivoting unit has an inner side surface formed with a plurality of convex patterns and abutting the corresponding insulating pad. The mask bow device for a work hat according to claim 1, wherein the material of the insulating pad of each pivot unit is selected from thermoplastic elastomer, rubber, or silicone rubber.

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