TWI508675B - Fastener structure of safety helmet - Google Patents

Description

Safety helmet buckle structure

The invention relates to a safety helmet buckle structure, in particular to a length and a tightness of the buckle when the buckle is freely adjusted, and the impact is not easily loosened or dropped, or is driven at a high speed. At the same time, the buckle of the helmet is not affected by the wind resistance.

The buckle structure of the early helmet is mainly used by a male buckle and a female buckle. Because the male and female buckles are made of plastic material, although they are light in weight and low in cost, they are Plastic material, so its fastening tightness is poor, it is easy to break and loose when it is impacted, and it is easy to cause wear and damage after long-term use.

Therefore, there is a new type of "Machine Snap Ring" patent case No. M376176 announced by the Republic of China on March 21, 1999. It is disclosed: it includes a male buckle ring and a female buckle ring, wherein the male buckle ring is at one end of its elastic buckle piece. a metal piece integrally pressed with the same; the female buckle ring is provided with a metal piece integrated with the upper end of the open end of the insertion hole; when the male buckle ring is combined with one end of the elastic buckle piece, the female end is inserted into the female When the socket of the buckle is inserted, the elastic buckle of the male buckle ring is engaged with the upper edge of the open end of the female buckle ring jack, so that the metal piece of the elastic buckle of the male buckle ring and the metal piece of the female buckle ring are provided. Contact, thereby achieving the goal of light weight, low cost, easy to pass test standards and not easy to wear and tear.

However, the method of unlocking the patent is mainly to separate the male and female buckles by pressing the male buckle, but the tripping method has more impact points, and the impact is automatically caused by a slight impact. Unlocking, so that the helmet is separated from the user's head, so that the protection is lost, or when the wind speed is too high, the helmet is easily skewed or fallen off, so there is a hidden danger in use.

There is also a new patent No. M243966 "Light-force push-type buckle structure" announced by the Republic of China on September 21, 1993. It is disclosed by a female fastener, a male fastener and an elastic block; The female fastener has a ring hole at one end, a slot at the other end, a diagonal card block in the slot, a frame port on the slot to embed the card block, and one end of the male fastener member is provided with a ring hole at the other end. Inserting piece, setting bit slot on the inserting piece, pressing plate at the top of the elastic card block, and a ring-shaped buckle ring at the bottom end, the inclined ring is arranged in the buckle ring, and an extended elastic piece is arranged on the buckle ring, the card is arranged There are buckles on both sides of the block, which can be buckled on the card steps of the side of the frame of the female fastener to prevent the out of the frame. The elastic card block can be embedded in the frame of the female fastener, and the elastic piece can be The top is abutted on the card block in the slot; the card block is placed in the frame mouth, and when the male fastener is inserted into the female fastener, the positioning groove and the diagonal block can be engaged.

However, the patent is similarly released by the pressing method. Therefore, there are also many impact points, easy to automatically disengage and separate, and it is easy to be affected by windage at high speed to cause skew or fall off, so it is rather unsatisfactory in use.

Therefore, in view of the above-mentioned safety helmet buckles, the above-mentioned various kinds of defects, the present invention provides a safety helmet buckle structure, which is provided with a housing, which is provided with an inlet and an outlet, and the inside of the housing A chamber is provided, the chamber is connected to the inlet and the outlet, and the chamber is provided with a pressing portion between the inlet and the outlet, and a position is provided at a position relative to the pressing portion. a retaining block, wherein the shell base is provided with a fixing portion, and a sliding slot is disposed on two sides of the shell seat, and the shell seat is provided with a through hole; a pressing unit is disposed on the shell seat Indoor, the pressing unit is provided with at least one roller, the roller is abutted between the inlet and the outlet, the peripheral ring of the roller is provided with a plurality of pressing blocks, and the roller is provided with a shaft, the shaft The two ends of the rod are respectively disposed in the two sliding grooves, and the shaft is fixedly provided with a pulling cord, one end of the pulling rope is threaded out of the through hole, and one end of the pulling rope is provided at the end of the pulling rope a button is arranged, and an elastic element is sleeved on the rope, and the elastic element is located in the chamber And the elastic contact between the top wall surface of the chamber and the roller to push the pressing member are pressed against the roller The pressing portion generates a pressing force and presses the stopper; a buckle belt penetrates from the inlet of the housing, passes through the outlet, and is pressed by the pressing force of the pressing block Pressure positioning.

The shell base is formed by a first half of the first housing and a second shell.

The combination of the first housing and the second housing is a high-frequency bonding manner, a fusion bonding manner, a fitting manner, or a screwing manner.

The inlet is disposed at a front edge of the first casing, and the outlet and the fixing pillar are disposed at a top edge of the first casing.

The chambers are formed together in the first housing and the second housing, so that the interiors of the first housing and the second housing respectively form a half of the chamber.

The pressing portion is disposed on the first housing, and the stopper is oppositely disposed on the second housing.

The fixing portion is disposed at a rear edge of the second casing.

The chutes are disposed on the inner side of the first casing and the second casing, and the inner portions of the first casing and the second casing respectively form a half chute.

The through holes are disposed at the rear edge of the first casing and the second casing, respectively, and the interiors of the first casing and the second casing respectively form a half through hole.

The buckle is provided with at least one fixing hole, and the first housing is provided with a fixing post, and the fixing post is fastened in the fixing hole.

The invention has the following advantages:

1. The present invention can freely pull the buckle belt without a segment to adjust the length of the buckle when it is fastened and the tightness thereof, so that the helmet can be fastened and fastened without being loosened.

2. The buckle structure of the present invention mainly utilizes the release method of pulling a release button, and can loosen the tightening action of the buckle, so that no impact point exists, even if it is received from When the impact is strong in the same direction, it will not be loosened easily, so the safety of the user can be ensured.

3. The invention can not be affected by the wind resistance especially when driving at a high speed, and the helmet can be slanted or loosened arbitrarily, so that the safety of the helmet can be further ensured.

4. The chutes of the present invention are commonly recessed on the inner side of the first housing and the second housing, so that the two ends of the shaft of the roller can only move in the limit of the two sliding slots, and there is no Exposed to the outside of the housing, it does not create any impact points, and will not automatically disengage when it is impacted, and danger occurs to ensure the safety of the driver.

(1)‧‧‧Shell

(11)‧‧‧First housing

(12)‧‧‧Second shell

(13)‧‧‧ Entrance

(14) ‧‧‧Export

(15) ‧ ‧ fixed column

(16) ‧ ‧ ‧ room

(161) ‧‧‧Resistance Department

(162) ‧ ‧ s

(17) ‧‧‧Fixed Department

(18)‧‧‧Chute

(19) ‧‧‧through holes

(2) ‧‧‧ Compression unit

(21)‧‧‧Rollers

(22) ‧‧‧Pressure block

(23)‧‧‧ shaft

(24)‧‧‧Drawstring

(25) ‧ ‧ 掣 button

(26)‧‧‧Flexural components

(3) ‧‧‧ buckle

(31) ‧‧‧Fixed holes

(A) ‧ ‧ hard hat

(B) ‧‧‧ users

[First figure] is a perspective exploded view of the present invention.

[Second figure] is a three-dimensional combination diagram of the present invention.

[Third image] is a sectional view of the combination of the present invention.

[Fourth figure] is a schematic view of the use of the present invention in combination with a helmet.

[Fifth view] is a schematic view showing that a pressing block of the roller of the present invention generates a pressing force against the pressing portion.

[Sixth figure] is a schematic view of the present invention for releasing the buckle by pulling the release button.

First, referring to the first figure and the second figure, the embodiment of the invention includes a housing (1), a pressing unit (2) and a buckle (3), wherein:

a housing (1), which may be formed by a first half of the first housing (11) and a second housing (12), the first housing (11) and the second housing (11) 12) The bonding mode can be implemented by high-frequency bonding, fusion, fitting or screwing. In this embodiment, the high-frequency bonding mode is used as an illustration, and the front edge of the first casing (11) is provided with an inlet (13). And the top edge of the first casing (11) is provided with an outlet (14) and a fixing post (15), and the inner casing of the first casing (11) and the second casing (12) Can be formed together The hollow chamber (16), that is, the first housing (11) and the second housing (12) are respectively formed with a half chamber (16), and the chamber (16) is connected to the chamber An inlet (13) and an outlet (14), the first housing (11) is provided with a pressing portion (161) at a position between the inlet (13) and the outlet (14) in the chamber (16). As shown in the third figure, the second casing (12) is provided with a tooth-shaped stopper at a position of the bottom edge of the chamber (16) relative to the pressing portion (161) ( 162), the rear edge of the second casing (11) is provided with a fixing portion (17), and a corresponding recess is formed on the inner side of the first casing (11) and the second casing (12). a sliding slot (18), and the first housing (11) and the rear edge of the second housing (12) jointly define a through hole (19), that is, the first housing (11) and the The second housing (12) is formed with a half chute (18) and a half through hole (19), respectively.

a pressing unit (2) is disposed in the housing (16) of the housing (1), the pressing unit (2) is provided with at least one roller (21), and the embodiment is provided with two Relative to the side-by-side roller (21), the roller (21) is abutted between the inlet (13) and the outlet (14) of the first casing (11) (as shown in the third figure), the roller (21) The peripheral ring is provided with a plurality of pressing blocks (22), and the two rollers (21) are axially coaxially provided with a shaft (23), and the two ends of the shaft (23) are respectively disposed in the The first housing (11) and the second housing (12) are inside the sliding groove (18), so that the shaft (23) can drive the roller (21) to the housing (1) a limit slip in the chamber (16), and a pull cord (24) is fastened on the shaft (23) between the two rollers (21), and one end of the pull cord (24) is worn out of the first a casing (11) and a through hole (19) of the second casing (12), and an untwisting button (25) is attached to an end of the cable (24), and the pulling rope ( 24) The upper sleeve is provided with an elastic member (26), and the elastic member (26) is located in the chamber (16) of the housing (1), thereby elastically abutting against the wall surface of the rear edge of the chamber (16). Between the upper wheel and the roller (21), To push the roller (21) such that the pressing blocks (22) respectively press against the pressing portion (161) in the housing (16) of the housing (1) to generate a pressing force, and Pressed on the stop (162).

The buckle (3) is penetrated by the inlet of the first casing (11) and then passed out through the outlet (14) and received by the pressing block (22) of the roller (21). The pressing force is used to position the pressure, and the fastening tape (3) is provided with a plurality of fixing holes (31), so that any fixing hole (31) can be fastened and fixed to the fixing column of the housing (1) (15) )on.

When combined, as shown in the first figure and the second figure, the pressing unit (2) is placed in the half chamber (16) of the second casing (12), and the pressing is performed. The two ends of the shaft (23) of the unit (2) are respectively disposed on the half chute (18) of the second casing (12), and the drawstring (24) of the shaft (23) is The half through hole (19) of the second casing (12) is pulled out, and the first casing (11) is combined with the second casing (12), and the first portion can be made by high frequency bonding. a casing (11) is tightly coupled to the second casing (12) without being easily separated, and the chute formed by combining the first casing (11) and the second casing (12) (18), the two ends of the shaft (23) of the roller (21) can be moved only in the two sliding slots (18), and the elastic force of the elastic member (26) is used to push the roller. The pressing block (22) of (21) may be respectively pressed against the pressing portion (161) of the first casing (11) and the stopper (162) of the second casing (12) (as shown in the third figure) As shown, the housing (1) is finally fixed to one side of a safety helmet (A) (as shown in the fourth figure), and the first housing (11) and its outlet (14) are fixed. Column (15) The sleeve is oriented toward the outer side of the helmet (A), and the buckle (3) is relatively fixed to the other side of the safety (A), so that it can be easily assembled.

When in use, as shown in the fourth and fifth figures, the helmet (A) is placed on the head of a user (B), and when the buckle (3) is to be fastened, After the buckle (3) is inserted through the inlet (13) of the shell (1), the roller (21) can be pushed backward by the force of the buckle (3), so that the buckle (3) ) can be passed through the outlet (14) of the housing (1), and when the roller (21) is pushed backward, the elastic member (26) can be simultaneously compressed, when the buckle (3) passes the roller (21) After reaching an appropriate length, the buckle (3) can be properly tightened to the lower part of the user (B). When the buckle (3) is no longer pushed, the roller (21) The elastic restoring force of the elastic member (26) can be used to push the pressing block (22) of the roller (21) to return to the pressing portion (161) of the first casing (11) and the first portion. a stopper (162) of the second casing (12), whereby the buckle (3) can use the pressing force between the pressing block (22) and the pressing portion (161) to make the buckle ( 3) It is no longer possible to pull the inlet (13) back out of the housing (1), so that the buckle can be freely adjusted without a segment (3). The length and the tightness thereof will finally extend on the buckle (3) of the outlet (14) corresponding to the fixing hole (31) of the fixing post (15), and fasten and fasten it to the housing (1) ) on the fixed column (15), so It is fastened with a quick snap, and it will not be loosened at will. Even if it is hit by impact, it will not loosen easily, or it will not be affected by wind resistance when it is driving at high speed.

When it is necessary to loosen the buckle (3) or adjust the tightness thereof, as shown in the sixth figure, it is only necessary to first unfasten the fixing hole (31) of the buckle (3) and the fixing post (15). So that it is no longer engaged, and then the handle (25) is gripped on the housing (1) and pulled outward, and the cable (24) is interlocked backward in the chamber (16) and The roller (21) compresses the elastic member (26) when the roller (21) moves backward, and the pressing block (22) of the roller (21) does not press the buckle (3) again. In this way, the pressing force of the pressing block (22) for the pressing portion (161) disappears, and the buckle belt (3) is freely retracted through the outlet (14) and passes through the roller (21). After that, it can be withdrawn from the inlet (21), thereby releasing the buckle (3) to release it, or re-adjusting the tightness of the buckle (3), when releasing the buckle (3) or After adjusting the tightness, only need to release the release button (25), then the elastic restoring force of the elastic member (26) can be used to quickly push the pressing block (22) of the roller (21) respectively. Returning to the original position, re-pressing against the pressing portion (161) and the second housing (12) of the first housing (11) (162), to be used again left to the next when fastened.

However, the above description is only one of the embodiments of the present invention. When the scope of the patent application of the present invention is not limited thereto, the simple equivalent changes and substitutions made by the scope of the patent application and the contents of the specification of the present invention are It is still within the scope of the protection covered by the scope of the invention.

(1)‧‧‧Shell

(11)‧‧‧First housing

(12)‧‧‧Second shell

(13)‧‧‧ Entrance

(14) ‧‧‧Export

(15) ‧ ‧ fixed column

(16) ‧ ‧ ‧ room

(161) ‧‧‧Resistance Department

(162) ‧ ‧ s

(17) ‧‧‧Fixed Department

(18)‧‧‧Chute

(19) ‧‧‧through holes

(2) ‧‧‧ Compression unit

(21)‧‧‧Rollers

(22) ‧‧‧Pressure block

(23)‧‧‧ shaft

(24)‧‧‧Drawstring

(25) ‧ ‧ 掣 button

(26)‧‧‧Flexural components

(3) ‧‧‧ buckle

(31) ‧‧‧Fixed holes

Claims (8)

A safety helmet retaining ring structure includes: a housing having an inlet and an outlet, the housing is internally provided with a chamber, the chamber is connected to the inlet and the outlet, and the chamber is located A pressing portion is disposed between the inlet and the outlet, and a stopper is disposed at a position relative to the pressing portion, and the housing is provided with a fixing portion, and one side of the housing is disposed on the two sides of the housing a sliding slot, wherein the housing is formed with a through hole, wherein the housing is formed by a first half of the first housing and a second housing, and the through hole is commonly disposed on the first housing a second through hole is formed in the inner edge of the first housing and the second housing; a pressing unit is disposed in the housing of the housing, the pressing The unit is provided with at least one roller, the roller is abutted between the inlet and the outlet, the peripheral ring of the roller is provided with a plurality of pressing blocks, and the roller is provided with a shaft, and the two ends of the shaft are respectively Inserted in the two chutes, and a shaft is fastened on the shaft, and one end of the rope is threaded through the through hole And an elastic button is disposed on the end of the cable, and an elastic member is disposed on the cable, the elastic member is located in the housing, and elastically abuts against the wall surface of the chamber and the roller Between the pressing blocks for pushing the roller respectively, pressing the pressing portion generates a pressing force, and pressing the stopper; a buckle belt is penetrated by the inlet of the housing, and then the outlet It is worn out and is pressed against the pressing force of the pressing block. The helmet cap structure of claim 1, wherein the first housing and the second housing are combined in a high frequency bonding manner, a fusion mode, a fitting manner or a screw. The method is fixed. The helmet cap structure of claim 1, wherein the inlet is disposed at a front edge of the first casing, and the outlet is disposed at a top edge of the first casing. The helmet cap structure of claim 1, wherein the chambers are formed together inside the first housing and the second housing to make the first housing and the second housing A half chamber is formed inside each. The helmet cap structure of claim 1, wherein the pressing portion is disposed on the first housing, and the stopper is oppositely disposed on the second housing. The helmet cap structure of claim 1, wherein the fixing portion is disposed at a rear edge of the second casing. The helmet cap structure of claim 1, wherein the chute is commonly recessed on the inner side of the first housing and the second housing, such that the first housing and the second A half of the chute is formed inside the casing. The helmet cap structure of claim 1, wherein the buckle is provided with at least one fixing hole, and the first housing is provided with a fixing column, and the fixing column is fastened in the fixing hole. .