Intercom headset for safety helmet

Abstract

The present invention relates to an intercom headset which can be coupled to a safety helmet to be used and comprises: a first connection unit comprising, in one end thereof, a first safety helmet coupling unit which can be inserted into a coupling hole arranged on a side surface of the safety helmet and includes a coupling hook so as to be coupled to the coupling hole in a snap-fit manner, and, in the other end thereof, a first intercom coupling unit which is extended in the direction opposite to that of the first safety helmet coupling unit; and an intercom disposed on the first intercom coupling unit.

Description

Intercom headset for hard hats

[0001] The present invention relates to an intercom headset that can be used by being combined with a safety helmet.

[0002] Wearing a safety helmet is essential for the safety of workers in industrial sites, disaster sites, etc.

[0003] Workers at industrial sites, disaster sites, and other locations must be able to communicate with a central control center or other workers to perform their work effectively or respond to emergencies.

[0004] There are attempts to combine safety helmets and communication equipment to implement the above two functions simultaneously.

[0005] However, the methods attempted in the past required excessively complex external shapes and structures for combining the safety helmet and communication equipment.

[0006] Furthermore, because the helmet's exterior was modified to incorporate communication equipment, existing helmets without modification could not be used. Considering the sheer number of helmets used in workplaces, discarding all existing helmets and purchasing new ones would be neither easy nor economical.

[0007] Therefore, it is necessary to develop a technology that enables the use of existing safety helmets while connecting them to communication equipment.

[0008] The present invention is intended to solve the above-described problems and to provide an intercom headset for a safety helmet.

[0009] In order to solve the above-described problem, the intercom headset for a safety helmet according to the present invention may include a first safety helmet fastening portion having one end that can be inserted into a fastening hole provided on the side of a safety helmet and fastened to the fastening hole in a snap-fit ​​manner, including a fastening hook, a first intercom fastening portion extending in an opposite direction to the first safety helmet fastening portion to form the other end, and a first connecting unit including an intercom located at the first intercom fastening portion.

[0010] In one embodiment of the present invention, the first safety helmet fastening part is fastened by the fastening hook being caught on the upper portion of the fastening hole, and the fastening hook can be released from the fastening hole when pressed in a direction opposite to the protruding direction.

[0011] In one embodiment of the present invention, the fastening hook extends from one side of the first hole provided in the first safety helmet fastening portion, and the end of the first safety helmet fastening portion is a cantilever, and can bend into the inside of the first hole when pressurized.

[0012] In one embodiment of the present invention, the first safety helmet fastening portion further includes at least one first auxiliary protrusion protruding from the surface on one side, and the first auxiliary protrusion may protrude more when the fastening hook is pressed and may not protrude more when the fastening hook is not pressed.

[0013] In one embodiment of the present invention, the first auxiliary protrusion is located below the fastening hook and can be positioned so as to face the fastening hole within the fastening hole.

[0014] In one embodiment of the present invention, the first safety helmet fastening portion further includes at least one second auxiliary protrusion protruding from the surface on the other side, and the second auxiliary protrusion can be in contact with the lower circumference of the safety helmet.

[0015] In one embodiment of the present invention, the intercom may include a communication unit that enables multi-communication by exchanging voices in a wireless communication manner with one or more external intercoms located within a frequency tolerance range, a speaker unit that transmits voices received by the communication unit to one ear of the wearer, and a microphone unit that receives voices of the wearer and provides them to the communication unit.

[0016] In one embodiment of the present invention, the intercom may be formed integrally with the first connection unit.

[0017] In one embodiment of the present invention, the first connection unit further includes a first position adjustment unit between the first safety helmet fastening unit and the first intercom fastening unit, and the first position adjustment unit can be bent by applying a predetermined force, and can be maintained in a bent state if no additional force is applied.

[0018] In one embodiment of the present invention, the first intercom fastening portion may further include at least one second micro-diameter hole penetrating the first intercom fastening portion in the first direction.

[0019] In one embodiment of the present invention, the second hole may have a diameter that increases in the first direction.

[0020] Another embodiment of the present invention for solving the above-described problem is an intercom headset for a safety helmet, which may include a second connection unit including a second safety helmet fastening portion fastened to an inner lining provided on the inside of the safety helmet, a second intercom fastening portion extending in an opposite direction to the second safety helmet fastening portion to form the other end, and an intercom positioned at the second intercom fastening portion.

[0021] In one embodiment of the present invention, the second safety helmet fastening part can be fastened by pressing the inner skin sandwiched between the first and second pieces.

[0022] In one embodiment of the present invention, the first piece further includes a first blocking protrusion on a surface facing the second piece, and the second piece further includes a second blocking protrusion on a surface facing the first piece, and the first blocking protrusion and the second blocking protrusion are in contact with each other to suppress discharge of the endothelium sandwiched between the first piece and the second piece.

[0023] In one embodiment of the present invention, the intercom may be formed integrally with the second connection unit.

[0024] The present invention has the advantage of excellent economic efficiency because it can use existing safety helmets used in industrial sites, disaster sites, etc. without modification according to the above-described configuration and combination relationship.

[0025] Additionally, the combination of a hard hat and an intercom headset can improve work efficiency by facilitating communication between tasks.

[0026] Additionally, since it is a detachable structure to the helmet, it has the advantage of being able to use only the helmet without the intercom headset when necessary.

[0027] Additionally, since the safety helmet and intercom headset are detachable from each other, there is an advantage in that if one function is no longer functioning, only the safety helmet or intercom headset can be replaced.

[0028] Additionally, the detachable structure between the safety helmet and the intercom headset is very easy to use, stable, and convenient.

[0029] Figure 1 is an exploded perspective view showing the combination of a safety helmet intercom headset and a safety helmet according to one embodiment of the present invention.

[0030] Figure 2 is a front view of the first connecting unit.

[0031] Figure 3 is a rear view of the first connecting unit.

[0032] Figure 4 is a left side view of the first connection unit.

[0033] Figure 5 is a right side view of the first connection unit.

[0034] Fig. 6 is a cross-sectional view showing a combination of a safety helmet and an intercom headset for the safety helmet in the AA' direction of Fig. 1.

[0035] Fig. 7 is a cross-sectional view showing a second hole included in the first intercom fastening part.

[0036] Figure 8 is a front view of the intercom.

[0037] Figure 9 is an exploded perspective view showing the combination of a safety helmet intercom headset and a safety helmet according to another embodiment of the present invention.

[0038] Figure 10 is a perspective view showing the second connecting unit and the inner lining of the safety helmet combined.

[0039] Figure 11 is a cross-sectional view showing P of Figure 10.

[0040] This specification clarifies the scope of the present invention and explains the principles of the present invention and discloses embodiments thereof to enable those skilled in the art to practice the invention. The disclosed embodiments may be implemented in various forms.

[0041] It should be understood that terms such as “include,” “may include,” or “have,” which may be used in various embodiments of the present invention, are intended to indicate the presence of a feature described in the specification (e.g., a function, a number, a step, an operation, a component, a part, or a combination thereof), but do not preclude the possibility of the presence or addition of one or more other features.

[0042] As used herein, singular expressions include plural expressions unless the context clearly indicates otherwise.

[0043] When a component is referred to as being "connected, coupled" to another component, it should be understood that while the component may be directly connected or coupled to the other component, there may also be a new component between the component and the other component. Conversely, when a component is referred to as being "directly connected" or "directly coupled" to another component, it should be understood that no new component exists between the component and the other component.

[0044] The terms "first," "second," etc., used herein may be used to describe various components, but the components should not be limited by the terms. The terms are used solely to distinguish one component from another.

[0045] As used herein, the terms “upper” and “lower” refer to the coordinate system indicated in each drawing based on the representative drawings of each embodiment, such as FIG. 1 and FIG. 9, and in this case, the upper direction may be the +z-axis direction and the lower direction may be the -z-axis direction.

[0046] Hereinafter, a preferred embodiment of the present invention will be described in detail with reference to the drawings.

[0047] FIG. 1 is an exploded perspective view showing the combination of a safety helmet intercom headset and a safety helmet according to one embodiment of the present invention. FIG. 2 is a front view of a first connection unit. FIG. 3 is a rear view of the first connection unit. FIG. 4 is a left side view of the first connection unit. FIG. 5 is a right side view of the first connection unit. FIG. 6 is a cross-sectional view showing the combination of a safety helmet and an intercom headset taken along the line AA' of FIG. 1. FIG. 7 is a cross-sectional view showing a second hole included in a first intercom fastening portion. FIG. 8 is a front view of the intercom.

[0048] Referring to FIG. 1, the intercom headset for a safety helmet disclosed in the present invention may include a first connection unit (200) that is connected to a fastening hole (110) of a safety helmet (100) and an intercom (300) that is connected to the first connection unit (200).

[0049] Before explaining the intercom headset for a safety helmet, let us explain one aspect of a safety helmet (100) available on the market. As shown in Fig. 1, a fastening hole (110) is provided on the side of the safety helmet (100).

[0050] The fastening hole (110) is provided to enable the chin strap to be connected to the safety helmet (100), and is typically provided in the form of a 'ㄷ' shaped member attached to both sides of the safety helmet (100) to form a through hole between the fastening hole and the safety helmet (100).

[0051] In the following description, the term 'fastening hole (110)' may be used to mean a 'ㄷ' shaped member attached to both sides of a safety helmet (100) and a through hole formed between the 'ㄷ' shaped member and the safety helmet (100).

[0052] For example, the expression 'inserted into the fastening hole (110)' can be understood to mean that a 'ㄷ' shaped member is attached and inserted into a hole formed between the member and the safety helmet (100), and the expression 'fastened to the fastening hole (110)' can be understood to mean that it is inserted into the hole and fastened to the 'ㄷ' shaped member.

[0053] Looking at the first connection unit (200) based on the description of the safety helmet (100) and the fastener (110), the first connection unit (200) may be a connection member extending in any direction (for example, the +z-axis or -z-axis direction in FIG. 1) to connect the safety helmet (100) and the intercom (300) that should be located next to the wearer's ear.

[0054] Referring to FIGS. 1 to 6, the first connection unit (200) may include a first safety helmet fastening portion (210), a first position adjustment portion (220), and a first intercom fastening portion (230).

[0055] The first safety helmet fastening part (210) can be inserted into the fastening hole (110) as one end of the first connection unit (200), and can be fastened to the fastening hole (110) to connect the first connection unit (200) and the safety helmet (100).

[0056] The first safety helmet fastening part (210) may include a fastening hook (211), a first hole (212), a first auxiliary protrusion (213), and a second auxiliary protrusion (214).

[0057] The fastening hook (211) can be understood as a hook provided on the first safety helmet fastening portion (210) so that the first safety helmet fastening portion (210) can be fastened to the fastening hole (110) in a snap-fit ​​manner.

[0058] Specifically, the first safety helmet fastening part (210) including the fastening hook (211) can be inserted into the fastening hole (110). At this time, the first safety helmet fastening part (210) can be inserted into the fastening hole (110) by moving upward from the lower portion of the fastening hole (110) (for example, it can be in the +z-axis direction in FIG. 1).

[0059] In the process of inserting the first safety helmet fastening part (210) into the fastening hole (110), the fastening hook (211) is pressurized by the fastening hole (110) (more precisely, it may be a 'ㄷ' shaped member) and the safety helmet (100).

[0060] When the first safety helmet fastening part (210) moves further upward and the fastening hook (211) leaves the fastening hole (110), it is restored again.

[0061] The restored fastening hook (211) can be caught on the upper part of the fastening hole (110) (more precisely, it can be the upper part of a 'ㄷ' shaped member), and the first safety helmet fastening part (210) can be fastened to the fastening hole (110).

[0062] Conversely, the first safety helmet fastening part (210) including the fastening hook (211) can be moved downward and discharged from the inserted fastening hole (110).

[0063] At this time, the fastening hook (211) hanging on the upper part of the fastening hole (110) must be pressed so that it can be inserted into the fastening hole (110) again.

[0064] As the fastening hook (211) is pressurized, the fastening hole (110) and the fastening hook (211) can be released.

[0065] The disconnected fastening hook (211) can be inserted into the fastening hole (110), and the inserted fastening hook (211) can pass through the fastening hole (110) and be discharged downward from the fastening hole (110) while being pressurized by the fastening hole (110) and the safety helmet (100).

[0066] The fastening hook (211) discharged from the fastening hole (110) can be restored again.

[0067] As an example of a structure for implementing the aforementioned fastening method, the first safety helmet fastening portion (210) may include a first through hole (212) and a fastening hook (211) penetrating the first safety helmet fastening portion (210) in the thickness direction (for example, the +y-axis and -y-axis directions in FIGS. 1 to 6).

[0068] In addition, the fastening hook (211) may be formed by extending from one side of the circumference of the first hole (212), and may be formed by extending at a predetermined angle with respect to the first safety helmet fastening portion (210), and may be provided as a cantilever in which the end of the extended fastening hook (211) protrudes out of one side surface of the first safety helmet fastening portion (210).

[0069] Here, the first hole (212) is for forming a cantilever-shaped fastening hook (211), and also for providing a free space so that the fastening hook (211) can be pressed in the thickness direction of the first safety helmet fastening portion (210).

[0070] Specifically, the first through hole (212) provides a space in which the fastening hook (211) can be bent. That is, when the fastening hook (211) is pressed and bent, the end of the fastening hook (211) can be positioned inside the first through hole (212), and the fastening hook (211) can pass through the fastening hole (110) more easily.

[0071] For example, as illustrated in FIGS. 1 to 6, a first through hole (212) may be formed at an end of the first safety helmet fastening portion (210). The first through hole (212) may penetrate the first safety helmet fastening portion (210) in the thickness direction and may be provided in a form that provides a space into which a bent fastening hook (211) may be inserted by extending along the longitudinal direction of the first safety helmet fastening portion (210) (for example, the +z-axis and -z-axis directions in FIGS. 1 to 6).

[0072] Continuing with reference to FIGS. 1 to 6, the fastening hook (211) may be a cantilever that starts from the upper circumference of the first hole (212). In addition, the cantilever may extend downward, but may extend at a positive angle (θ1) with the longitudinal direction of the first safety helmet fastening portion (210).

[0073] Accordingly, the extended end of the cantilever beam may be positioned so as to protrude outside the outer surface of the first safety helmet fastening member (210). At this time, the extended end of the cantilever beam may be positioned so as to contact the fastening hole (110) (more specifically, it may be a 'ㄷ' shaped member) or protrude so as to be positioned outside the fastening hole (110).

[0074] This structure enables the fastening hook (211) to be hooked to the upper portion of the fastening hole (110) when not pressurized (hereinafter, the abbreviated expression 'when not pressurized' will be used together), and when pressurized, it bends into the first hole (212) to release the fastening with the fastening hole (110) and allows it to pass through the fastening hole (110).

[0075] The direction (B) in which the fastening hook (211) is pressed may be the opposite direction to the direction in which the fastening hook (211) protrudes (for example, it may be the -y-axis direction in FIG. 6).

[0076] Next, the first auxiliary protrusion (213) is provided to ensure that the first safety helmet fastening part (210) inserted into the fastening hole (110) is stably positioned within the fastening hole (110), and at the same time, to assist in the release of the fastening hook (211) and the fastening hole (110).

[0077] To this end, the first auxiliary protrusion (213) may be a protrusion protruding from the surface on one side of the first safety helmet fastening portion (210). Preferably, the first auxiliary protrusion (213) may be a protrusion protruding from the surface on the outer side of the first safety helmet fastening portion (210) (for example, it may be a side positioned in the +y-axis direction of the first safety helmet fastening portion (210) in FIG. 6).

[0078] Additionally, the first auxiliary protrusion (213) may be positioned at the bottom of the fastening hook (211), but may be positioned so as to face the fastening hole (110) from the inside.

[0079] For example, referring to FIG. 6, when the fastening hook (211) is fastened to the fastening hole (110), the first auxiliary protrusion (213) can be positioned to face the fastening hole (110) inside the fastening hole (110) (more precisely, it can be a through hole formed between the 'ㄷ' shaped member and the safety helmet (100).

[0080] In addition, the first auxiliary protrusion (213) may be a protrusion formed on the outer surface of the first safety helmet fastening portion (210) so as to protrude more when the fastening hook (211) is pressed (or, when pressed) and not so as to protrude more when the fastening hook (211) is not pressed (or, when not pressed).

[0081] The first auxiliary protrusion (213) protruding more than the fastening hook (211) when pressurized allows the fastening hook (211) and the fastening hole (110) to be released from each other without excessively pressurizing the fastening hook (211). On the other hand, if the first auxiliary protrusion (213) protrudes more than the fastening hook (211) when not pressurized, the fastening hook (211) cannot function.

[0082] Preferably, the first auxiliary protrusion (213) may be a protrusion that protrudes so that the first safety helmet fastening portion (210) can contact the safety helmet and at the same time, the first auxiliary protrusion (213) can contact the fastening hole (110).

[0083] In this case, unnecessary play can be minimized to minimize shaking of the first safety helmet fastening part (210), thereby enabling the first connection unit (200) to be stably connected to the safety helmet (100).

[0084] One or more first auxiliary protrusions (213) may be included in the first safety helmet fastening portion (210). This is to stably perform the aforementioned function.

[0085] For example, referring to Fig. 2, two first auxiliary protrusions (213) are positioned spaced apart from each other at the bottom of the fastening hook (211) or the first hole (212). However, it is not limited thereto, and it is of course possible to provide three or more first auxiliary protrusions (213) or one first auxiliary protrusion (213) extending in the +x-axis or -x-axis direction.

[0086] The second auxiliary protrusion (214) is provided to prevent the first connection unit (200) from being ejected upward from the fastening hole (110) and, at the same time, to prevent the first connection unit (200) inserted into the fastening hole (110) from moving unnecessarily in the up-and-down direction (for example, the +z-axis and -z-axis directions in FIG. 6).

[0087] To this end, the second auxiliary protrusion (214) may be a protrusion protruding on the outer surface of the first safety helmet fastening portion (210) (for example, it may be a side positioned in the +y-axis direction of the first safety helmet fastening portion (210) in FIG. 6) or the inner surface (for example, it may be a side positioned in the -y-axis direction of the first safety helmet fastening portion (210) in FIG. 6). Preferably, it may be a protrusion protruding on the inner surface.

[0088] Additionally, the second auxiliary protrusion (214) may be positioned lower than the fastening hook (211) and the first auxiliary protrusion (213). Preferably, it may be positioned spaced downward so that the fastening hole (110) can be positioned between the fastening hook (211).

[0089] Additionally, the second auxiliary protrusion (214) can be in contact with the lower circumference of the safety helmet (100). This is to prevent the first connection unit (200) from moving upward unnecessarily even after the fastening hook (211) passes through the fastening hole (110).

[0090] However, without being limited thereto, the second auxiliary protrusion (214) may be positioned to protrude on the outer surface of the first safety helmet fastening portion (210) and contact the lower portion of the fastening hole (110) (more precisely, it may be the lower portion of the 'ㄷ' shaped member).

[0091] Accordingly, the first connection unit (200) connected to the safety helmet (100) can be stably connected to the safety helmet (100) by having unnecessary upward movement blocked by the second auxiliary protrusion (214) and unnecessary downward movement blocked by the connection hook (211).

[0092] Next, the first position adjustment unit (220) included in the first connection unit (200) is located between the first safety helmet fastening unit (210) and the first intercom fastening unit (230), and is a part provided to adjust the relative position between the first safety helmet fastening unit (210) and the first intercom fastening unit (230).

[0093] Accordingly, the relative position between the safety helmet (100) and the intercom (300) connected by the first connection unit (200) can be adjusted, so that the position of the intercom (300) can be finely adjusted to fit the body of the wearer of the safety helmet (100).

[0094] To this end, the first position adjustment unit (220) may be provided with a structure and material capable of adjusting the relative position between the upper and lower portions of the first position adjustment unit (220). The relative position adjustment of the first position adjustment unit (220) may be movement in the up-and-down direction (for example, in the +z-axis and -z-axis directions in FIG. 1), forward and backward (for example, in the +x-axis and -x-axis directions in FIG. 1), or outward and inward (for example, in the +y-axis and -y-axis directions in FIG. 1).

[0095] Specifically, the first position adjustment unit (220) can be bent by applying a predetermined force, and can be provided with a structure and material that maintains the bent state if no additional force is applied.

[0096] For example, the inside of the first position adjustment unit (220) may include a wire having a predetermined degree of flexibility so that it can be bent, and an elastic material such as rubber may be provided around the wire to form an outer shell.

[0097] For example, the first position adjustment unit (220) may be provided in a form in which two members, an upper member and a lower member, are connected to each other, and the upper member and the lower member may be provided in a form in which they slide relative to each other within a predetermined range. However, the present invention is not limited thereto.

[0098] Next, the first intercom connection part (230) included in the first connection unit (200) is a part provided to enable connecting the intercom (300) to the first connection unit (200).

[0099] Before explaining the first intercom connection part (230), the intercom (300) will be explained.

[0100] An intercom (300) is a device that enables 1:1 or multi-party communication.

[0101] Referring to FIG. 8, the detailed configuration of the intercom (300) disclosed in the present invention may include a communication unit (310), a speaker unit (320), a microphone unit (330), and an operation unit (340).

[0102] The communication unit (310) is a part that includes a communication function and can exchange voices with one or more external intercoms (300) within the communication allowance range via wireless communication, and can be configured to enable multi-communication.

[0103] The communication method of the communication unit (310) may include Bluetooth, WiFi, 2-Way Radio, LTE, 5G, etc. However, it is not limited thereto, and any wireless communication method capable of transmitting and receiving voice may be considered to belong to the present invention.

[0104] In some cases, wired communication technologies such as 2-Wire Party-Line, 4-Wire Matrix-System, etc. may be used.

[0105] The speaker unit (320) is a part that converts communication content into voice and transmits it to the wearer. A typical speaker device can be included inside the intercom (300), and can be placed on one side of the intercom (300) so as to face the ear of the wearer of the safety helmet (100).

[0106] The microphone section (330) is a section that receives the voice of the wearer of the safety helmet (100) and provides it to the communication section (310), and can be provided in the form of a typical headset microphone.

[0107] The control unit (340) is provided to control the operation of the speaker unit (320) or communication unit (310), including the volume, and may be provided on one side edge of the intercom (300) as shown in FIG. 8.

[0108] The operating unit (340) may be operated by a pressurized method. This is because the present invention is intended for use in industrial settings, disaster sites, etc., and should be convenient and intuitive to operate. However, the present invention is not limited thereto.

[0109] Again, the first intercom fastening portion (230) can be described. The first intercom fastening portion (230) can be provided at the other end formed by extending in the opposite direction from the first safety helmet fastening portion (210) in the first connection unit (200).

[0110] The intercom (300) can be detachably connected to the first intercom connection part (230).

[0111] To this end, a first intercom insertion groove (231) into which an intercom (300) can be inserted may be provided in the first intercom fastening portion (230). The intercom (300) is installed inside the groove formed to fit the exterior of the intercom (300) and the frame of the intercom (300) is held so that the intercom (300) can be stably inserted into the first intercom fastening portion (230).

[0112] For example, referring to FIG. 2, the first intercom insertion groove (231) is formed in the first intercom fastening portion (230) and may be provided to be sunken in more than other parts in a shape corresponding to the intercom (300).

[0113] Preferably, the first intercom insertion groove (231) may be provided in the form of a groove into which the intercom (300) is inserted in a direction other than the vertical direction (for example, the +z-axis and -z-axis directions in FIG. 2). This is to increase the stability of the connection between the first intercom fastening portion (230) and the intercom (300), taking into account the weight of the intercom (300). However, this is not limited thereto.

[0114] In addition, the first intercom fastening portion (230) may be provided with one or more first intercom fastening slots (232). The first intercom fastening slots (232) are slots provided so that a fastening member (not shown) of the intercom (300) can be inserted and fastened, and may be provided in a shape corresponding to the fastening member of the intercom (300).

[0115] Preferably, the first intercom fastening slot (232) may be provided so that the fastening member of the intercom (300) may be inserted in a direction other than the vertical direction (for example, the +z-axis and -z-axis directions in FIG. 2).

[0116] Additionally, the first intercom connection part (230) may include one or more second holes (233).

[0117] The second aperture (233) can be understood as a micro-diameter aperture provided to better transmit the sound of the intercom (300) to the wearer when the first intercom connection part (230) is positioned between the intercom (300) and the ear of the wearer of the safety helmet (100).

[0118] For this purpose, the second through hole (233) may be a through hole penetrating the first intercom fastening portion (230) in the first direction. Here, the first direction may be the thickness direction of the first intercom fastening portion (230) (for example, it may be the -y-axis direction in FIGS. 2 and 7).

[0119] Additionally, the second aperture (233) may be designed to have a diameter that increases as it moves in the first direction. This is to function as a kind of loudspeaker.

[0120] For example, referring to FIGS. 2 and 7, the second through hole (233) is provided in the first intercom insertion groove (231) and penetrates the first intercom fastening portion (230) in the thickness direction, and the inner diameter (L2), which may be, for example, a side located in the -y-axis direction of the first intercom insertion groove (231) in FIG. 7) may be larger than the outer diameter (L1), which may be, for example, a side located in the +y-axis direction of the first intercom insertion groove (231) in FIG. 7).

[0121] Separately, the intercom (300) and the first connection unit (200) may be formed as an integral structure and may be non-separable. Preferably, the intercom (300) may be manufactured as an integral structure with the first connection unit (200) and positioned at the first intercom fastening portion (230).

[0122] In this case, there is no risk of the intercom (300) being separated from the first connection unit (200) and lost, and there is no need to manufacture a fastening member for connection between the intercom (300) and the first connection unit (200), so the process is easy and economical.

[0123] According to the structure described above, the intercom headset for a safety helmet disclosed in the present invention can be easily combined with a safety helmet (100) that is currently in use, and can be stably connected and effectively transmit voice to the wearer, thereby improving work efficiency.

[0124] Another preferred embodiment of the present invention will be described in detail with reference to the drawings below.

[0125] In the description of this embodiment, the same configuration as the above-described embodiment is given the same drawing reference numerals, and the configuration given the same drawing reference numerals can be interpreted as having the same structure, function, action, and effect as the above-described embodiment, and if there is a difference in application, it will be explicitly explained.

[0126] In the description of this embodiment, duplicate descriptions of components with the same drawing symbols as those of the previously described embodiment will be omitted or abbreviated, and the differences will be primarily described. However, the omitted or abbreviated descriptions should not be construed as rejecting the previously described embodiment.

[0127] Fig. 9 is an exploded perspective view showing the combination of a safety helmet intercom headset and a safety helmet according to another embodiment of the present invention. Fig. 10 is a perspective view showing the combination of a second connection unit and the inner lining of the safety helmet. Fig. 11 is a cross-sectional view showing point P of Fig. 10.

[0128] Referring to FIG. 9, an intercom headset for a safety helmet disclosed in another embodiment of the present invention may include a second connection unit (400) connected to the inner lining (120) of a safety helmet (100) and an intercom (300) located at a second intercom connection portion (430) of the second connection unit (400).

[0129] Before explaining the second connecting unit (400), one aspect of a safety helmet (100) distributed on the market will be explained. As shown in FIG. 9, there may be no fastening hole (110) on the side of the safety helmet (100).

[0130] However, even in this case, the safety helmet (100) is always provided with an inner lining (120). The inner lining (120) is made of a material such as cloth or nylon that can be shaped to fit the wearer's head shape, and wraps the wearer's head inside the safety helmet (100), while at the same time separating the wearer's head and the safety helmet (100) from each other to protect the wearer from external impact.

[0131] The inner lining (120) can be provided in various forms so as to be able to wrap around the wearer's head well, but typically includes a gap that wraps around the head circumference at the height of the wearer's forehead (for example, it can be a circumference connecting the forehead, both sides, and the back of the head).

[0132] Therefore, another embodiment of the present invention can be understood as connecting the safety helmet (100) and the intercom (300) by means of a second connection unit (400) that is connected to the inner lining (120) of the safety helmet (100) even when there is no fastening hole (110) in the safety helmet (100).

[0133] Looking at the configuration with reference to FIGS. 9 and 11, the second connection unit (400) may include a second safety helmet fastening part (410), a second position adjustment part (420), and a second intercom fastening part (430).

[0134] The second safety helmet fastening portion (410) is a portion including a fastening structure that can be fastened to the inner lining (120) of the safety helmet (100) in the second connection unit (400).

[0135] The second safety helmet fastening part (410) can be fastened to the inner skin (120) by moving upward from the lower part of the inner skin (120) (for example, it can be in the +z-axis direction in FIGS. 9 to 11).

[0136] Preferably, the inner skin (120) can be fastened to the inner skin (120) by moving upward from the lower part of the inner skin (120) and inserting the inner skin (120) into the inside of the second safety helmet fastening part (410).

[0137] For this purpose, the second safety helmet fastening portion (410) may include a first piece (411) and a second piece (412). The first piece (411) and the second piece (412) may be ends formed by splitting into two when the second safety helmet fastening portion (410) extends upward.

[0138] The first piece (411) and the second piece (412) may be spaced apart from each other so that the second safety helmet fastening part (410) can move upward to fit the inner skin (120) between the first piece (411) and the second piece (412).

[0139] For example, referring to FIG. 10, the second safety helmet fastening portion (410) extends upward in a split manner and is divided into a first piece (411) and a second piece (412) at the end, and the first piece (411) and the second piece (412) are spaced apart from each other so that an inner skin (120) can be inserted therebetween.

[0140] At this time, the first part (411) and the second part (412) may be prepared in the same shape. In addition, the first part (411) and the second part (412) may be prepared in a shape similar to the inner skin (120) so as to stably hold the inner skin (120) sandwiched between them.

[0141] For example, each of the inner surfaces (120) may be provided in a plate shape with a square cross-section, but is not limited thereto.

[0142] The second safety helmet fastening part (410) can be fastened to the inner skin (120) by pressurizing the inner skin (120) sandwiched between the first part (411) and the second part (412).

[0143] For this purpose, the first part (411) and the second part (412) may be elastically supported by the second safety helmet fastening part (410) or may be made of a material having restoring force.

[0144] For example, referring to FIG. 10, the first piece (411) and the second piece (412) are in contact with each other, and are made of a material having a certain elasticity, such as plastic, so that an inner skin (120) can be inserted between the first piece (411) and the second piece (412). This structure has the advantage of allowing the second connection unit (400) to be very easily connected to the inner skin (120).

[0145] In addition, when the endothelium (120) is inserted, the endothelium (120) is firmly pressed from both sides by the restoring force acting on the first piece (411) and the second piece (412), so there is an advantage in that a stable connection can be formed.

[0146] In another form of this embodiment, the first piece (411) described above may further include a first blocking protrusion (413) on the surface facing the second piece (412), and the second piece (412) may further include a second blocking protrusion (414) on the surface facing the first piece (411).

[0147] At this time, the first blocking protrusion (413) and the second blocking protrusion (414) can be positioned to contact each other and suppress the discharge of the endothelium (120) sandwiched between the first pieces (411).

[0148] For example, referring to FIG. 11, the first blocking protrusion (413) may be positioned offset from the end on the side where the first piece (411) faces the second piece (412). In addition, the second blocking protrusion (414) may be positioned offset from the end on the side where the second piece (412) faces the first piece (411).

[0149] Here, the first blocking protrusion (413) and the second blocking protrusion (414) may be provided in the form of a semicircle extending in one direction (for example, the +x-axis and -x-axis directions in FIG. 11). This is to prevent damage to the endothelium (120) inserted and discharged between the first piece (411) and the second piece (412).

[0150] However, it is not limited to this, and if a stronger connection is required, the first blocking protrusion (413) may be provided as a 'ㄷ' shaped member, and the second blocking protrusion (414) may be provided in an 'ㅓ' shape that interlocks with the first blocking protrusion (413) to form a more secure connection between them.

[0151] The second position adjustment unit (420) may be provided to have the same structure, function, action, and effect as the first position adjustment unit (220) in the above-described embodiment, and duplicate descriptions will be omitted.

[0152] The second intercom fastening part (430) may be provided to have the same structure, function, action, and effect as the first intercom fastening part (230) in the above-described embodiment, and duplicate descriptions will be omitted.

[0153] The intercom (300) can also be provided to have the same structure, function, operation and effect as the intercom (300) in the above-described embodiment, and duplicate descriptions will be omitted.

[0154] The foregoing description of the present invention is provided for illustrative purposes only. Those skilled in the art will readily appreciate that modifications to other specific embodiments can be made without altering the technical spirit or essential characteristics of the present invention. Therefore, the embodiments described above should be understood as illustrative in all respects and not limiting.

[0155] For example, although the present invention has been described with reference to one embodiment shown in the drawings, this is merely exemplary, and those skilled in the art will understand that various modifications and variations of the embodiments are possible from this.

[0156] Therefore, the true technical protection scope of the present invention is indicated by the technical idea of ​​the patent claims described below, and all changes or modified forms derived from the meaning and scope of the patent claims and their equivalent concepts should be interpreted as being included in the scope of the present invention.

Claims

1. A first safety helmet fastening part that can be inserted into a fastening hole provided on the side of the safety helmet, and that is fastened to the fastening hole in a snap-fit ​​manner, including a fastening hook; A first connecting unit including a first intercom fastening portion extending in the opposite direction to the first safety helmet fastening portion to form the other end; and An intercom headset for a safety helmet, characterized in that it includes an intercom located in the first intercom fastening portion.

2. In paragraph 1, The above first safety helmet fastening part is fastened by the fastening hook being caught on the upper part of the fastening hole, An intercom headset for a safety helmet, characterized in that the above fastening hook is released from the fastening hole when pressure is applied in the opposite direction to the protruding direction.

3. In paragraph 2, The above-mentioned fastening hook is a cantilever beam extending from one side of the first hole provided in the first safety helmet fastening portion, and the extended end protrudes beyond the outer surface of the first safety helmet fastening portion. An intercom headset for a safety helmet, characterized in that it can bend into the inside of the first hole when pressurized.

4. In paragraph 3, The above first safety helmet fastening part further includes at least one first auxiliary protrusion protruding from the surface on one side, An intercom headset for a safety helmet, characterized in that the first auxiliary protrusion protrudes more when the fastening hook is pressed and does not protrude more when the fastening hook is not pressed.

5. In paragraph 4, An intercom headset for a safety helmet, characterized in that the first auxiliary protrusion is located below the fastening hook and is positioned so as to face the fastening hole within the fastening hole.

6. In paragraph 3, The above first safety helmet fastening part further includes at least one second auxiliary protrusion protruding from the surface on the other side, An intercom headset for a safety helmet, characterized in that the second auxiliary protrusion can come into contact with the lower circumference of the safety helmet.

7. In paragraph 1, The above intercom is, A communication unit that enables multi-communication by exchanging voices through wireless communication with one or more external intercoms located within the frequency allowance range; A speaker unit that transmits the voice received by the above communication unit to one ear of the wearer; An intercom headset for a safety helmet, characterized by including a microphone unit that receives the wearer's voice and provides it to the communication unit.

8. In paragraph 1, An intercom headset for a safety helmet, characterized in that the intercom is formed integrally with the first connection unit.

9. In paragraph 1, The above first connecting unit further includes a first position adjustment unit between the first safety helmet fastening unit and the first intercom fastening unit, An intercom headset for a safety helmet, characterized in that the first position adjustment part can be bent by applying a predetermined force and remains bent unless additional force is applied.

10. In paragraph 1, An intercom headset for a safety helmet, characterized in that the first intercom fastening part further includes at least one second micro-diameter hole penetrating the first intercom fastening part in the first direction.

11. In paragraph 10, An intercom headset for a safety helmet, characterized in that the second hole has a diameter that increases as it goes in the first direction.

12. A second safety helmet fastening part fastened to the inner lining provided on the inside of the safety helmet, A second connecting unit including a second intercom fastening portion extending in the opposite direction to the second safety helmet fastening portion to form the other end; and An intercom headset for a safety helmet, characterized in that it includes an intercom located in the second intercom fastening portion.

13. In paragraph 12, An intercom headset for a safety helmet, characterized in that the second safety helmet fastening part is fastened by pressing the inner skin sandwiched between the first and second pieces.

14. In paragraph 13, The first part further includes a first blocking protrusion on the surface facing the second part, The second part further includes a second blocking protrusion on the surface facing the first part, An intercom headset for a safety helmet, characterized in that the first blocking protrusion and the second blocking protrusion are in contact with each other and suppress the discharge of the inner skin sandwiched between the first piece and the second piece.

15. In paragraph 12, An intercom headset for a safety helmet, characterized in that the intercom is formed integrally with the second connection unit.

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