TW200924935A - Gas combustion type driving tool - Google Patents

Abstract

To provide a gas combustion type driving tool which is downsized by reducing the entire height thereof, and facilitates handling thereof. The gas combustion type driving tool is provided with a feed piston-cylinder mechanism which impulsively drives a driver 12 together with a driving piston 11 in a driving cylinder 10, by combustion gas having burned in a combustion chamber, so as to drive out a fastener in a nose portion 5, and carries out reciprocative movement of connected fasteners in a magazine 2 by a feed piston 8 in a nail feeding direction that feeds the connected fasteners toward the nose portion 5 side and the opposite receding direction. The driving tool constantly energizes the feed piston in the feeding direction by a spring, and supplies part of the combustion gas via a gas pipe line to the feed cylinder, to thereby operate the feed piston in the receding direction against the spring. The driving tool has a gas pipe line 21 arranged between the combustion chamber 4 and the feed piston-cylinder mechanism 6. In the outside of a driving piston-cylinder mechanism 3, the gas pipe line 21 has: a check valve 25 for inhibiting the combustion gas from flowing backward; and an on-off valve 26 for releasing the gas pipe line to the atmosphere.

Description

200924935 IX. Description of the Invention: [Technical Field] The gas-fired percussive tool of the present invention is a hybrid gas explosive combustion obtained by stirring and mixing combustible gas in a combustion chamber with air, and driving the striking piston • A cylinder mechanism whereby the fasteners are pushed out from the nose. Moreover, a gas pipeline is disposed between the feed piston and the cylinder mechanism for feeding the fastener to the nose, and the combustion piston and the cylinder mechanism are driven by the spring and the gas from the gas pipeline. Reciprocating action. [Prior Art] Gas-fired percussion tool is used to inject flammable gas into a combustion chamber enclosed in the body, and to mix flammable gas and gas in the combustion chamber, and to mix the gas with the money. Combustion in the combustion chamber whereby high pressure combustion gas is produced in the combustion chamber. Further, the high roof gas is applied to the striking piston housed in the knocking cylinder, and the striking piston is driven in an impacting manner within #^. The actuator incorporated in the aforementioned side of the knocking surface is such that the fastener supplied to the nose below the body is driven into the 7-plate or cement. For example, in such a gas-fired drive-in machine, a container such as a gas cylinder filled with flammable gas is installed in a battery of the power source of the ignition ignitable gas: or: Gas and other two are available as portable tools. Therefore, it is not limited by the power supply source, but the needle body or the pin body can be used. The month J gas-fired percussion tool is provided to be stored in the needle.

7042-9826-PF 5 200924935 The connecting fasteners of the 匣 are sequentially fed into the feeding mechanism of the nose. The feed mechanism 'generally has a feed claw that is slidably accommodated in the feed cylinder in the feed cylinder', and is provided with a feed claw that can be engaged with the fastener attached to the nail, and the feed piston is sent The feed piston/cylinder mechanism that feeds in the direction of the nail body on the nose side and reciprocates in the reverse direction.

Ο The feed piston/cylinder mechanism is known as a feed piston that is slidably housed in a feed cylinder, and reciprocates by combustion chamber gas pressure and spring force transmitted from a gas turbine tube. . Moreover, the feed piston is urged in the feed direction of the nail body by the spring for a long time, and the feed piston moves in the backward direction against the spring by the pressure of the combustion gas during the knocking (U.S. Patent No. 7,040,521) Patent specification). 々 However, in the gas pipe body between the combustion chamber and the feed piston and the reversing mechanism, a check valve is arranged to prevent the combustion gas from the combustion chamber to the feed cylinder from flowing back to the combustion chamber; _, used to make the combustion gas in the feed cylinder to the outside. The tip of the section passes through the aforementioned component system. The opening and closing member is generally not large with the return valve. The nose is provided with a contact member, the lower end of which is protruded from the nose* and the component of the combustion chamber (movable sleeve) is engaged with the through-the-loop member on the contact member. . The contact member fish ring-body moves, the lower end portion of the ring member is disposed under the tapping cylinder, and the valve is disposed at #敏厂, Λ fc directly between the slamming cylinder and the nose (H2GQ6 t(4) The above-mentioned opening and closing valves are arranged in parallel. The port valve system is, but in the structure of the tapping cylinder, the overall t:: the opening and closing valve is closed, and the overall questioning degree becomes higher. Therefore,

7042-9826-PF 6 200924935 The use of the report is cumbersome, so the weight becomes heavier. [Invention] One or more embodiments of the present invention provide a gas combustion type that can suppress the miniaturization of the tool and is easy to use. Tap the tool. When the first aspect of the present invention is used, in the configuration of the gas-fired percussion tool, the combustion chamber includes a combustion chamber, and the mixed gas obtained by mixing and mixing the combustible gas with the open helium gas is subjected to explosive combustion; The piston/pressure two structure causes the combustion gas of the monthly pressure to act on the striking piston contained in the knocking cylinder, and the impact driving in the tapping cylinder drives the hitting portion, which will be combined with the foregoing Knocking on the driver on the lower surface side of the piston, and the feed piston and the cylinder mechanism, so that the feed piston that is jammed with the fastener attached to the nail is placed on the side of the body: On the contrary, in the backward direction, the movement is such that the feed piston is pushed forward by the spring in the feed direction for a long time. • The combustion gas is partially passed through the gas between the combustion chamber and the aforementioned “plug/cylinder mechanism”. The pipeline is supplied to the aforementioned feed cylinder, and the feed cylinder is operated in the backward direction against the spring. In the front-type tapping tool, between the combustion chamber and the combustion of the feed piston, the setting is made. You Α 疋 疋 疋 罝 罝 九 九The gas is supplied from the combustion chamber to the gas pipeline of the front cylinder mechanism, and at the same time, the gas, the second plug, the pressure check valve, the check valve 'blocks the flow of the steam, and the opening and closing valve, after the tapping is completed, Let the burning gas of the supply open to the atmosphere.

7042-9826-PF 7 200924935: In the gas combustion type knocking configuration according to the second aspect of the present invention, the combustion chamber can be opened and closed by moving the annular movable sleeve up and down, and the opening and closing system is In the configuration in which the third embodiment of the present invention is used in conjunction with the third embodiment of the present invention, the check valve and the on-off valve are disposed in parallel. ❹ ❹ :: In the first embodiment of the present invention, in the gas-fired knocker and configuration, a gas line for burning gas from the combustion chamber mechanism is provided between the combustion chamber and the feed piston. In addition, in the case of the feed piston and the outer part of the cylinder, the right side of the cylinder is used. The gas line is 'in the above-mentioned knocking. The check valve' prevents the reverse flow of the combustion gas; and the opening and closing valve is in the knocking club. Walk. Gas is open to the atmosphere, so that it can be directly combined with the burning nose of the aforementioned feed cylinder. Therefore, it can be mentioned that: [Strike the piston, the house mechanism and the weight reduction, so use the "easy" - the type of suppression tool is high and miniaturized. "Use the gas-burning knocker of the valley." In the second aspect of the invention, in the gas-fired percussion tool 'combustion chamber, the annular movable sleeve is moved up and down, and the furnace is turned on, and the opening and closing valve system and the movable sleeve are interlocked to start two strokes. After the tapping is finished, the opening and closing action is performed. Therefore, = the knocking of the fasteners is used; the second= can also make the opening and closing of the valve start and the end of the breaking. Can the feed piston and the cylinder be actuated at the correct timing, And the fastener is conveyed to the full height of the nose suppressing tool. When the third aspect of the present invention is used, the gas-fired knocking tool check valve and the opening and closing valve are arranged in parallel, so that this can be

7042-9826-PF 8 200924935 Placed on the outside of the tapping piston/cylinder mechanism. The description and the drawings of the reference embodiment can be further described. Si: In the figure, the number 1 indicates the basis of the gas burning type injection machine. Connected with a grip (not shown) and a needle Η There is a tapping piston • Cylinder mechanism 3, a pick-up piston 5 and a feed piston. Pressing mechanism 6: Nasal... Nail body feed tapping piston. Pressure The cylinder mechanism 3, the flattened squat is slid in the smashing cylinder, and the piston is smashed from the ground. At the same time, under the tapping piston η, the driver 12 is coupled. Moreover, the 'c-ring 9 series limits the movement of the tap: The upper combustion chamber 4 is formed by the upper end surface of the striking piston u, the knocking cylinder 1〇, and the upper wall U of the upper casing 13 (the cylinder head). The two valve bodies have sufficient space for other features. And the effect, added. And an annular movable sleeve 15 disposed between the two. If the movable sleeve 15 is moved downwards as it is, the upper portion of the combustion chamber 4 can be connected to the atmosphere by means of the (four)% closed combustion chamber 4 as shown in the figure. The upper movable end member U is attached to the contact portion. The contact member 16 is provided so as to be slidable up and down along the nose portion 5, and the lower end Ua protrudes from the nose portion 5. Further, 'by pressing the aforementioned lower end 16a and the nose portion 5 against the material P to be driven, the contact member 16 is erected 7042-9826-PF 9 200924935 and relatively moved to the upper side through the ring member. The cartridge moves to the top. As shown in Fig. 1, the sealed combustion chamber 4 can be formed by this. On the contrary, by moving the nose 5 away from the hit member, the contact member i 6 is also moved to the lower side. The 375 member and the movable sleeve 5 are moved to the lower portion of the combustion chamber 4 by the elastic phthalocyanine. It is open to the atmosphere. / above. The P peripheral unit 13 is provided with an injection nozzle 178 connected to the gas container and a spark plug 17b for igniting and burning the mixed gas. Also, on the P P 'again 1 3 "has a motor 18. The center of the hand is provided with a rotary fan 19 for causing the flammable gas in the chamber 4 to be scrambled with the air in the combustion chamber 4 to generate a mixed gas having a predetermined oil-gas ratio in the combustion chamber 4. The nose 5 guides the sliding of the aforementioned driver 12 while opening to the nail E 2 . The feed piston/cylinder mechanism 6 slidably feeds the feed piston 8 in the feed cylinder 7, and the second claw that is formed at the tip end of the feed piston 8 is housed in the nail E 2 The phase pickup is connected, and the nail body feeding direction to the side of the nose 5 is reciprocated in the backward direction opposite to the feeding direction as shown in the first drawing. When the feed piston 8 is moved to the moving end of the inlet and the mouth, the head nail body ni is pressed into the outlet of the nose 5 before the needle N is coupled. Therefore, the feed piston 8 is located at the moving end position in the feed direction. In this state, the connecting nail N does not move, so that the front nail N1 is held in a state of being pressed against the inner wall of the ejection opening. Next, the feeding cylinder 7 of the cylinder. At the same time, there is a spring 2〇 that pushes the feed piston 8 in the feed direction for a long time. In contrast, the opposite side of the feed spring 7 of the aforementioned spring 20 passes through the gas line.

7042-9826-PF 10 200924935 21 is coupled to the aforementioned combustion chamber 4. Next, the description of the above-mentioned configuration of Wasm first "when pushing", by making the contact structure: heart:::: two into the material, 113 鸲 鸲 抵 被 被 被 被 被 被 被 被 被 被 被 ! ! ! ! ! ! ! ! ! ! ! ! Closed combustion chamber 4, flammable fuel gas Π:: spray::7: is fed into the combustion chamber 4, rotating the fan and:: mouth 17"", the flammable gas in the chamber 4 and the · 使 使Injected into the combustion, • ', 乂 to the empty surname 2 + in the 4, θ has a mixed gas ratio of the specified oil and gas ratio. Speak, stir, and Yuan Cheng with Ο s ^ 1 7U Tian Hao cited as a trigger Even the 捍 (not shown) f will ignite the mixed gas with the spark plug nb, and the burning gas of the high factory will be used in the knocking pressure=explosion burning. The driving of the piano 12 on the lower surface side of the plug 11 Combine 2, , · ° in the aforementioned tapping

Ni introduces the entry... The nail that is supplied to the nose 5 is pushed out and 'into the hit p. Tian entered, '. At the time of beaming, the temperature of burning to 4 is rapidly decreased, so that the tapping piston n that is extended to the tapping cylinder 10 is caused by the pressure difference from the atmospheric pressure below. To return to the original volume, as shown in Fig. 3, the tapping piston u is reverted to the top dead center. Moreover, when the needle punching machine is moved away from the material, the contact member is relatively moved downward. Therefore, the movable sleeve 15 is also moved to the lower side in conjunction with each other, and the combustion chamber 4 is opened to the atmosphere, and the new air is sucked in to prepare for the lower-actuation. Next, by feeding the piston, the cylinder mechanism 6, the nail in the nail 2 The system is fed into the nose portion 5. The feed piston and the cylinder mechanism 6 are provided with a feed piston 8 reciprocally movable in the feed (4) 7, and the feed piston 8 is connected to the nail body in the nail 匣 2 The nail body feeding side 11 which is transported to the side of the nose 5

7042-9826-PF 200924935 Moves backwards and backwards & + , , in the backward direction. The feed piston 8 is pressed by the spring 20 in the direction of the feed. On the other hand, in the end portion of the feed cylinder 7 "the passage 21 is opened, the feed piston 8 is moved back against the spring 2G by the gas supplied from the gas line 21" and After the tapping piston U returns to the top dead center, the gas in the feed cylinder 7 is discharged, and the feed piston 8 is driven by the spring 2 to move the next nail body to the nose 5.

❹ Gas pipeline 21 ’ as in the first! As shown in the figure, the inside of the side wall 22 of the tapping cylinder — is formed by the interrogation #α, & Further, the upper end of the gas line 21 faces the opening in the combustion chamber 4, and the lower end is connected to the feed cylinder 7 through the line 24. At the gas path 21, as shown in Fig. 1 to Fig. 3, a check valve μ for preventing backflow of the combustion gas is arranged in parallel with the outer side 4 of the tapping cylinder 1 and the gas pipe is made after the tapping is completed. The opening and closing valve of the road 21 is open to the atmosphere. The valve body 27 of the β check valve 25 is pushed by the spring 28 in the closing direction of the spring 28 so that the combustion gas supplied to the feed piston/cylinder mechanism 6 through the gas passage 21 does not flow backward. A branch line 21a is formed on the downstream side of the check valve 25, and an open/close valve 26 is provided in the branch line 21a. The opening and closing valve 26 is connected to the movable sleeve 15 to move the valve handle 3〇, and is placed at the lower end of the l-shaped actuating piece 31 provided at the lower portion of the movable sleeve 15 as shown in FIG. 4 for a long time. When the branch line 2la is opened to the atmosphere, when the nail body is struck, as shown in Fig. 1, the tip end of the nose 5 is pressed against the hit member p to make the contact member 16 relatively opposed to the nailer. When the ground moves upward, the above-mentioned actuating piece is pushed upward, and as shown in Fig. 3, it is separated from the valve stem 3〇, therefore, the valve 7042-9826-PF 12 200924935 = borrowed by a _-s tube ...when the first and second works, the moving sleeve 15 moves upwards to form: the upper movement ': this' gas is sprayed from the spray nozzle 17a to the room = to:, while the flammable ❹ will rotate and mix Mix combustible gas with air. Also, by heart:: fan 19 :::T-, w=Z: = ::::: swim side) gas tube ... branch tube 』 ~ gas / /, when the spark plug (7) will ignite the mixed gas, :... Will burn and explode explosively. The aforementioned burning gas force is used to strike the upper surface of the live s i and is driven to the lower side, so

The nail body ni, = is driven into the material P before being knocked into the nose 5 outlet. ', 刖 刖 敲 敲 敲 , , , , , , , , , , , , , , , 之一 之一 之一 之一 之一 之一 之一 之一 之一 之一 之一 之一 之一 之一 之一 之一 之一 之一 之一 之一 之一 之一 之一 之一 之一 之一 之一 之一 之一 之一 之一 之一 之一The upper surface of the feed piston 8 is moved, so that the feed piston 8 also moves in the backward direction. The upstream flow of the combustion gas fed into the feed cylinder 7 is blocked by the check valve 25, and the feed piston 8 is broken and held in the retracted position. Further, the on-off valve 26 is in a closed state with respect to the atmosphere. When the end of the drive, the temperature in the combustion chamber 4 drops rapidly, so

7042-9826-PF 13 200924935 Expanded to the pressure cylinder 9 and the pressure from the lower atmosphere to the negative pressure 'borrowing pressure, and want to return to the original volume, so ^ 3 figure shows 'knock Hit the piston u to return to the top dead center. Moreover, when the nailing machine is moved away from the material to be driven, the contact member 16 is moved relative to the lower side, so that the opening and closing valve 26 is actuated in conjunction with this, as shown in Fig. 4, the opening and closing valve 26 is closed. The 厌λ b Η is pressed in, and the gas line 21 and the branch line 21a are opened to the atmosphere. 'From the fascination & ^ 霄❹ φ is discharged to the atmosphere, so the 1 7 ◎ burning gas system is self-opening and closing 26 feed pressure. The cylinder 7 is decompressed, and the feed piston 8 is divided into a by the force of the 20th, and the system is supplied to the nose 5 to move in the u direction, and the new head nail is inside. Further, the gas is supplied to the feed cylinder 7 to burn the gas, and the feed piston 8 can be held at the retracted position, and the active base U is returned to the end of the opening and closing operation. In the combustion chamber 4 and the aforementioned feed piston/cylinder mechanism 6, the combustion gas is supplied from the combustion chamber 4 to the feed piston, and the gas line is 21, and the gas line 21 is in front. The outer part of the smashing plant (4) is provided with a check 阙 25, which prevents the reverse of the burning gas - and the opening and closing valve 26, at the end of the tapping, and the supply to the feed = (4) to the atmosphere, so that the foregoing Knocking live = 3 is directly combined with the nose 5. Therefore, there is provided a gas burning type tapping tool which can suppress the tool and is easy to use. It is also expected that by moving the annular movable sleeve 15 up and down, the opening and closing mechanism are interlocked with the movable sleeve 15, and the movement is: 15 is at the beginning of the fastener tapping and after the tapping is completed. Opening and closing, so that the opening and closing of the opening and closing valve 26 can be actuated to match the tapping of the fastener

7042-9826-PF 14 200924935 Starting and knocking on the age of the shot Therefore, the feed piston and cylinder M can be actuated to deliver the fastener to the nose. The f-cylinder mechanism is provided in parallel between the correct check-back interval 25 and the on-off valve 26, so that the two valve bodies of the dynasty have a charge and a side portion. ^Configured in the (four) piston 1 cylinder mechanism and the gas pipeline does not necessarily need to be combined with the hitting red 〇 = = can make the smashing red 1 〇 and the tube body into individual strokes. Body ~ knock m -: The tapping tool of the embodiment is not limited to the nailing machine. January 匕 applies to the burning of gas by gas, the power is transmitted to the head bar (nail body, silk, bucket - 攸 encounter, ', mouth 颂 quot quot 体 体 体 体 或 或 或 或 或 或 或 或 或 或 或 或 或 或 或 或 或 或 或 或 或 或 或 或 或The present invention is described with reference to the detailed and specific embodiments of the invention. However, various changes and modifications may be made without departing from the spirit and scope of the invention. This application was developed based on the patent application filed by the company on July 4, 2007 (Sakamoto's special wish 2007-1 76035), and its contents are partially drawn from the above application. [Industrial Applicability] Between the combustion chamber and the aforementioned feed piston/cylinder mechanism, a gas pipeline for supplying combustion gas from the combustion chamber to the feed piston/cylinder mechanism is provided, and at the same time, the aforementioned gas pipeline is pressed in the foregoing knocking The outer part is provided with: a check valve to prevent the reverse flow of the combustion gas; and an opening and closing valve, after the end of the tapping, the combustion tile (4) supplied to the feed piston cylinder mechanism is opened 7042-9826-PF 15 200924935 So, can make the aforementioned The tapping piston/cylinder mechanism 3 is combined with the nose. Because of a, a gas burning type tapping tool capable of suppressing the tool height and miniaturization and being easy to use is provided. [Simplified drawing] When the tapping tool is not actuated Fig. 1 is a longitudinal sectional view of a gas burning type. ❹ Fig. 2 is a sectional view taken along line xx of Fig. 1. Fig. 3 is a sectional view of a γ-γ line in Fig. 2. Let's talk about the longitudinal section of the important part of the bear after the nailing machine is struck. The team's heart is illusory. p [Main component symbol description] 1 Body 2 Nail 3 Strike piston · Cylinder mechanism 4 Burning chamber 5 Nose 6 feed piston • Cylinder mechanism 7 Feed cylinder 9 C-ring 10 Knock cylinder 11 Strike piston 12 Driver

7042-9826-PF 16 200924935 13 Upper housing 14 Upper wall (cylinder head) 15 Movable sleeve 16 Contact member 18 Motor 19 Rotating fan 20 Spring 21 Gas line

22 Side wall 24 Pipeline 25 Check valve 26 Open and close valve 27 Valve body 28 Spring 30 Valve stem 31 Actuator 32 Bullet 15a Ring member 16a Lower end 17a Spray nozzle 17b Mars plug 21 a Branch line N1 Front nail body P is driven in Material 7042-9826-PF 17

Claims (1)

200924935 X. Patent application scope: 1. A gas burning type percussion tool, including a combustion chamber; a tapping cylinder; a tapping piston, which is housed in the aforementioned knocking cylinder; the nose 'will be combined with the aforementioned tapping work τ 主 π π guiding; the drive on the lower surface side of the slinger is fed to the cylinder; the feed piston is received in the aforementioned feed cylinder ^^ m... a feed claw on the fastener; and a gas line disposed between the combustion chamber and the feed pressure red to supply the gas to the feed piston; the feed piston is advanced for a long time Pushing the spring, the force is directed to the hammer: when the combustion gas is supplied from the gas pipeline to the feed cylinder, the feed piston is actuated in the backward direction against the spring, and the gas pipeline is knocked in the foregoing The outer side of the pressing cylinder is provided with: a check valve for preventing the reverse flow of the combustion gas; and opening and closing, and the tapping is pure, so that the burning gas supplied to the feeding cylinder is opened to the atmosphere. 2. The gas-fired percussive tool of the patent application scope, wherein the combustion chamber 'can be opened and closed by moving the annular movable sleeve up and down, the opening and closing valve system and the movable sleeve The action is linked. 3. The gas-fired knocker 7042-9826-PF 18 200924935 according to the above-mentioned claim, wherein the check valve and the opening and closing valve are arranged in parallel. 7042-9826-PF 19