TWI590928B - Link the nail into the machine - Google Patents

Description

Linking nail driving machine

The present invention relates to a connecting pin driving machine, comprising: a pin feeding mechanism for feeding a connecting pin received in a magazine from a feeding path of the pin to a head including the ejection opening; and contacting The arm is slidably disposed along the head and is moved relative to the head by pressing the driven member to make the push-in start operation of the buckle effective.

Furthermore, the present invention relates to a connecting pin driving machine that uses air pressure, fuel gas, or the like as a driving source, and the connecting pin driving machine includes a non-returning structure, which is an injection port that is connected to the connecting pin driving machine. When the feed pin is pushed, it does prevent the pin from moving in the opposite direction to the feed direction.

For example, in a nailing machine using compressed air as a driving source, the impact piston is driven by the high-pressure air supplied to the striking cylinder, and the impact is applied to the nailing machine body by the impact means such as the driver combined with the striking piston. The lower portion is driven into the nail with the ejection opening of the head, and the nail is driven into the driven member.

Instead, the feed path is placed between the ejection orifice of the head and the magazine. The connecting nails accommodated in the magazine are sent from the nail feeding path to the ejection opening by the nail feeding mechanism. The feed of the staples is performed by the feed claws provided in the nail feed path so as to reciprocate toward the nail feed direction. The feed claws are disposed on the rear side of the joint nails arranged in the nail feed passage. The feed claw engages with the nail shaft portion of the connecting nail during the forward movement, and only one connecting nail is sent. When the feed claw is retracted, the feed claw is retracted toward the outer side of the nail feed passage while avoiding the stapling, and is engaged with the next nail shaft portion (see Patent Document 1).

Further, if it is made to always push the buckle when performing the buckle operation of the trigger for starting, since it is dangerous, a safety device is provided. The safety device includes a contact arm that is configured to slide along the head. The front end portion of the contact arm is more prominent than the head. When the driving is performed, the front end portion of the contact arm is pressed against the driven member, and the contact arm moves relative to the nailing machine body, and the triggering operation of the trigger is performed only when the upper end portion of the contact arm engages with the trigger. Become effective and start the nailing machine. When the head is not pressed against the driven member, even if the trigger is pulled, the buckle operation becomes invalid, and the nailing machine is not started (refer to Patent Document 2).

In addition, the above-mentioned nail feeding mechanism or the safety mechanism by the contact arm is not only loaded on the nailing machine but also mounted on the screwing machine that drives the wood screws.

In the case where the conventional nail feeding mechanism has a certain failure on the way of feeding the nail, or the fed nail is not sent to the normal position, or the nail is not sent to the normal position even if it is mistakenly loaded. If the contact arm moves, it may be entered. Although the nail was not sent to the normal position, the nailing machine was started, and the nail may be clogged inside the head and the defect occurred.

Therefore, in order to improve this problem, a configuration is also known (refer to Patent Document 3) which lengthens the feed claw to penetrate into the nail feed passage, and pushes the feed claw to load the swing when loading the nail to load In the normal position, when the feed claw is not in the normal position, the contact arm interferes with the feed claw, and the contact arm cannot move to the top dead center without releasing the safety device.

Further, in general, the connecting pin is divided into a metal wire connector and a synthetic resin. As a connecting pin which is connected by a synthetic resin, it is known that there is mainly a bending piece connecting method and a flat piece connecting method. As the connecting clip of the bending piece coupling type, the nail holding pieces having the same direction are continuously bent from both side edges of the elongated strip piece, and the staples are fitted and held by the nail holding pieces. In the connecting piece of the flat sheet connecting type, the connecting portion of the elongated flat connecting piece and the narrow connecting portion between the holding portion of the supporting pin and the connecting holding portion are arranged to be in contact with each other. In the case of the connection piece of the flat piece connection type, there are cases where the connection band is a plurality of pieces, and a catheter having a diameter substantially equal to the head portion is fitted to the shaft portion of the pin. The catheter guides the staples so that they do not tilt in the ejection opening when they are driven, and the connecting tape is generally disposed above and below the catheter. Further, the connecting pin of the flat sheet connecting method is formed in a substantially straight shape.

However, in recent years, in the connection pin of the flat sheet connection type, it has been developed to bias the connection portion that connects the respective pin holding portions, that is, the connection portion is disposed to be biased toward either side of the line passing through the center of the pin (refer to Patent Documents 4 to 6). According to the stud, even if the connecting stud of the synthetic resin connecting tape is used, it can be wound into a coil shape, and when the coil is wound into a coil shape, the outer diameter thereof is easily reduced. The advantage of the studs being loaded into the nails of the driving tool.

As described in the above-described Patent Documents 4 to 6, the connecting nail driving machine in the form in which the connecting portion is disposed on one side of the connecting belt, and the nail feeding mechanism that sequentially supplies the staples from the nail are provided in the nail feeding mechanism Drive into the exit of the head. This feeding mechanism is composed of a feed claw and a check claw. The feed claw reciprocates in the feed direction of the staples, engages with the fastening nails during the forward movement, and feeds the fasteners to the exit side, performs a retracting operation, and engages with the next staples. In contrast, the check claw prevents the feed claw from engaging with the fastening pin when performing the retracting action, so that the connecting nail does not move together with the feeding claw in a direction opposite to the feeding.

However, in the configuration shown in Patent Document 3, although the feed of the nail is stabilized due to the length of the feed claw, it is necessary to rotate the feed claw and make the swing operation when the joint nail is loaded.

Further, the connecting pin driving machine using the connecting pin of the conventional flat piece connecting method as described above is configured such that the leading end of the feeding claw or the check claw is engaged with the shaft of the catheter or the staple.

However, in the structure in which the feed claw or the check claw is engaged with the shaft of the catheter or the nail, since the claw penetrates from the outer side of the joint belt to the inner side and is engaged with each other, it is necessary to increase the swing. Therefore, it is inevitable that the feed mechanism of the staples becomes large. Further, particularly in the case of the check claw, since it is only held so that the joint pin does not retreat, it is not necessary to specifically engage the shaft of the staple.

Therefore, for example, as shown in the connecting belt of the second drawing of Patent Document 4, at the outer edge portion on the side of the connecting portion of the connecting belt, a concave portion having a fixed angle is formed in the arc portion at the boundary portion between the nail holding portion and the connecting portion. In the case of the boundary of the straight portion, it is thought that the check claw is engaged with the recess. However, the angle of the recess is shallow, excessively moderate, and the pawl may slide. Further, since the boundary between the arc portion and the straight portion of the connecting belt in the eleventh to thirteenth drawings of Patent Document 4 has two positions, there is a possibility that the check claw is engaged at two positions, and the card has a card. Unstable problem.

Further, in the case of the connecting belt of Patent Document 5, the convex portion is formed in the nail holding portion. This convex portion is a residual portion when the connecting belt formed into a line symmetry is cut at the center. Therefore, even if it is intended to engage the check claw by the convex portion, the check claw does not necessarily engage with the convex portion, and as in the case of Patent Document 4, there is a concave portion card at the boundary portion between the nail holding portion and the joint portion. In the case of the combination, there is a possibility that the check claws are engaged at two positions, and the engagement is unstable.

Further, although the connecting tape of Patent Document 6 is not a flat sheet type, in this case, as in the case of Patent Document 5, there is a possibility that the check claws are engaged at two positions, and the engagement is unstable.

The same problem occurs even when the feeding claw is engaged with the same portion of the connecting belt.

In this way, in either case, even if it is intended to be used for feeding or non-return while maintaining the shape of the conventional connecting belt, since the recess of the conventional connecting belt is not used for the engaging, the connecting buckle cannot be used. The feed or check of the nail is stable.

[Patent Document 1] JP-B2-2836512

[Patent Document 2] JP-A-2005-081515

[Patent Document 3] JP-A-08-276378

[Patent Document 4] JP-A-2009-115212

[Patent Document 5] JP-A-2009-115213

[Patent Document 6] JP-A-2009-264585

One or more embodiments of the present invention provide a connecting pin driving machine that can directly load a connecting pin without rotating the feeding claw, and at the same time, misloading the connecting pin or causing a bad occurrence thereof In this case, it is possible to surely prevent the driving action of the pin.

Moreover, one or more embodiments of the present invention provide a joint pin driving machine that can share a check pawl with a connecting clip having a different type of engaging recess or engaging convex portion.

According to an embodiment of the present invention, the connecting pin driving machine includes: a feeding passage (11) for the nail, and a driving head (3) opening at a lower portion of the nailing machine body (1); The claw (26) is engaged with the connecting pin (A) loaded in the feeding path (11), and is sent to the ejection opening (4) of the head (3) by moving in the feeding direction. a connecting pin (A); the contact member (33) is disposed to slide freely along the head (3), and is moved relative to the nailer body (1) by pressing the driven member, so that The starting operation of the driving of the fastening pin becomes effective; and the engaging portion (43, 52) is provided to the contact member (33) and is engageable with the feeding claw (26). The feed claw (26) is configured to be retractable from the feed passage (11). The feed claw (26) is configured not to rotate the feed claw (26), and the joint pin (A) can be loaded in the feed passage (11). When the contact member (33) is pressed against the driven member in a state in which the feed claw (26) is retracted, the engaging portion (43, 52) of the contact member (33) and the feeding claw (26) Engage.

In this configuration, if the connecting pin is normally loaded in the feeding path, since the feeding claw does not rotate to the outside, the feeding mechanism does operate and the nail is normally fed. Further, when the front end of the head is pressed against the driven member, since the contact member is moved only by a sufficient amount, the triggering operation of the trigger handle is also effectively performed, and the driving of the nail is normally performed.

In contrast, when the connecting nail is loaded by mistake, or when the claw is not properly engaged with the claw of the feeding claw, and the feeding path is forcibly closed, the feeding claw is pushed outward by the connecting nail, so the feeding claw The rotation is retracted to the outside, and the front end portion of the feed claw is moved to a position engageable with the contact member. In this state, will The front end of the contact member presses the driven member, and it is intended to slide relative to the nailer body, and the engaging member cannot be moved further because the engaging portion engages with the front end of the feeding claw. When the movement of the contact member is restricted, the starting operation becomes invalid, and the driving operation of the nail cannot be performed. Therefore, it is possible to prevent the nail from being clogged in the head.

In the configuration of this embodiment, the engaging portion (43) may be formed as a cylindrical contact top (34) provided at the front end of the contact member (33).

In this configuration, since the engaging portion is formed as a cylindrical contact top provided at the front end of the contact member, it is not necessary to provide a special engaging member.

In the configuration of this embodiment, the engaging portion (52) may be constituted by an engaging pin located below the feeding claw (26) in a state of retracting rotation.

In this configuration, since the engaging portion is formed by the engaging pin provided on the contact member below the feed claw that retreats from the rotation, it is only necessary to add a simple structure of the engaging pin.

In the configuration of this embodiment, the engaging portion (43) may be formed as a movable head portion (55) provided at a front end of the contact member (33).

In this configuration, since the engaging portion is formed as a movable head provided at the front end of the contact member, it is not necessary to provide a special engaging member.

Moreover, according to one or more embodiments of the present invention, the fastening pin driving machine includes: a feeding passage (11) for the fastening nail, and a driving head opening at a lower portion of the nailing machine body (1) (3); the feed claw (26) is engaged with the joint pin (A) loaded in the feed passage (11), and is moved toward the head (3) by moving toward the feed direction. The outlet (4) sends out the connecting pin (A); and the check claw (28) restricts the feeding operation of the connecting pin (A) loaded in the feeding path (11). In the connecting pin (A), a plurality of pins (a) are connected via the upper and lower connecting pieces (13), and the engaging recesses (14) or cards are placed on the respective sides of the upper and lower connecting pieces (13). The convex portion is formed at a position corresponding to the upper and lower sides. In the feed passage (11), a plurality of types of fastening clasps (a) having different spacings between the upper and lower engaging recesses (14) or the engaging projections can be individually loaded. The feed claw (26) or the check claw (28) is configured to be engaged with the upper and lower engagement recesses (14) when any of the plurality of fastening clips (A) is used. The convex portion is engaged.

In the configuration of this embodiment, the feed claw or the check claw is formed so as to be engaged with the upper and lower engagement recesses (14) or the engagement projections in the case where any of a plurality of fastening nails is used. Therefore, the form in which the check claw or the feed claw is engaged with the engaging portion is the same regardless of the type of the connecting nail, and the check of all types of connecting nails constituting the system can be surely performed by the common check claw. In this way, since it is not necessary to replace the check claws or replace the nailing machines with various fastening nails, the overall cost can be particularly suppressed.

Further, since the position of the check claw or the feed claw is not required, the check claw or the feed claw can be formed by sheet metal processing, and the member supporting the check claw or the feed claw can be formed of synthetic resin. Therefore, the cost of parts can be reduced and the overall weight can be reduced.

Moreover, according to one or more embodiments of the present invention, the fastening pin driving machine includes: a feeding passage (11) for the fastening nail, and a driving head opening at a lower portion of the nailing machine body (1) (3); the feed claw (26) is engaged with the joint pin (A) loaded in the feed passage (11), and is moved toward the head (3) by moving toward the feed direction. The outlet (4) sends out the connecting pin (A); and the check claw (28) restricts the feeding operation of the connecting pin (A) loaded in the feeding path (11). The connecting pin (A) includes a connecting band (13) that alternately forms a pin holding portion (13c) having a shaft hole (13d) for holding the pin (a) and a pin holding portion (13c) adjacent to the connecting pin The connecting portion (13b) is provided on the offset side of the left and right sides of the connecting belt (13), and further along the outer edge portion (13a) of the connecting belt (13). The engagement recess (14) or the engagement projection is formed at a predetermined interval. The check claw (28) is formed to be engageable with the engagement recess (14) or the engagement projection.

In this configuration, since the connecting portion is provided on the side opposite to the right and left of the center of the connecting belt, the side feeding claw opposite to the side on which the connecting portion is provided can be surely engaged, and can be stably fed. Studs.

Further, on the side where the connecting portion is provided, the outer peripheral edge portion on the side of the connecting portion in the longitudinal direction of the connecting belt is formed with an engagement concave portion or an engaging convex portion at a predetermined interval, and the check claw is formed to be The engaging recess or the engaging convex portion is engaged. Thus, the check claws are also positively engaged, and the movement of the staples in the opposite direction can be surely prevented.

(nailing machine)

Fig. 1 is a view showing a nailing machine in the form of one of the joint pin driving machines of the present invention. The nailing machine integrally sets the handle 2 to the rear of the nailing machine body 1, and the head 3 having the injection opening 4 is integrally provided at the lower portion of the nailing machine body 1, and supplies the nail to the ejection opening 4. The magazine 5 is attached to the rear of the head 3, and the impact mechanism is disposed in the nailer body 1. That is, the impact piston 7 is slidably housed in the striking cylinder 6. The driver 8 is integrally coupled to the lower portion of the impact piston 7, and the actuator 8 is configured to slide within the injection port 4 of the head 3. Further, an air chamber 10 for storing compressed air supplied from a compressed air supply source (not shown) such as an air compressor (not shown) is formed in the nailer main body 1.

The connecting nail (connecting stud) A accommodated in the magazine 5 is configured to be supplied to the ejection opening 4 of the head 3 through the feeding path 11 . In addition, as shown in FIG. 3, the connecting pin A is connected to the shaft portion via a connecting piece 13 made of synthetic resin and the like, and a catheter 12 having an outer diameter slightly smaller than the inner diameter of the injection port 4 is inserted. A plurality of nails a. The engagement recess 14 is formed on one side of the coupling piece 13.

More specifically, as shown in Fig. 3, the connecting piece 13 is a thin and elongated strip-shaped flat sheet shape, and is formed by continuously forming a connecting pin having a shaft hole 13d having a size substantially equal to that of the center hole of the catheter 12. The holding portion 13c and the connecting portion 13b having a narrow width connecting the adjacent connecting nail holding portions 13c. The connecting portion 13b is formed to be more laterally left and right (lower in FIG. 3(b)) than the center of the connecting piece 13. Therefore, the outer edge portion 13a of the connecting piece 13b on the side of the connecting portion 13b is substantially straight, and the other side has a shape in which the feeding claw engaging portion 60 is formed between the connecting pin holding portions 13c. Further, as an engagement portion for the check of the check claw 28 to be described later, the engagement recess portion 14 is formed in each of the connection pin holding portions 13c of the outer edge portion 13a. The engaging recessed portion 14 has a substantially triangular shape as a whole, and one end thereof is formed at a substantially right angle with respect to the longitudinal direction of the connecting piece 13, and the other end side is formed obliquely. However, the engagement recess is not limited to this shape. It may also be a concave shape, a V shape or a convex shape. Further, when the engaging recessed portion 14 sees the two connecting pieces 13 in the axial direction of the nail a, in other words, in the plan view, it is disposed at the upper and lower corresponding positions, and the duct 12 is not exposed between the upper and lower engaging recesses 14. .

According to the connecting pin A, the outer edge portion 13a of the connecting piece 13 is formed substantially straight, as shown later, because the engaging means (the check claw or the feeding claw) of the feeding mechanism of the nailing machine are engaged with each other. The recess 14 is indeed engaged, so the feed or the check is stable.

Here, the operation of the trigger handle 15 is performed when the nailing machine is started. Thereby, since the starter valve 16 is actuated and the main valve 17 opens the air chamber 10 storing the compressed air to the striking cylinder 6, the compressed air is rapidly supplied into the striking cylinder 6, while simultaneously driving the striking piston 7 and the actuator. 8, to hit and hit the nail in the exit 4. The air compressed in the space below the impact piston 7 when the nail is driven is stored in the blowback chamber 18 at the lower portion of the impingement cylinder 6, and the compressed air above the impingement piston 7 is supplied to the lower portion of the impact piston 7 when it is discharged. Instead, it is displaced back to the starting position to prepare for the next nailing action.

(feeding organization)

Further, the feed passage 11 is a passage for pulling out the connection pin A from the magazine 5 and feeding it to the ejection opening 4, and as shown in Fig. 4, is disposed in the magazine 5 and the ejection port for accommodating the connection pin A. Between 4 and formed between the fixed wall 20 and the door 21. The nail feeding mechanism is provided in the feed path 11. In other words, the feed cylinder 22 is disposed outside the fixed wall 20, and the feed piston 23 is disposed in the feed cylinder 22 so as to be reciprocally movable in the feed direction. One end of the feed cylinder 22 communicates with the blowback chamber 18 via an air line 24 (see Fig. 1). The feed lever 25 that protrudes forward is integrally provided to the feed piston 23, and the feed pawl 26 is attached to the shaft 19 at the front end of the feed lever 25 so as to be retractable from the feed passage 11, and is used by a not-shown The spring is energized into the feed passage 11. The feed piston 23 is energized forward by the spring 27, and the compressed air is fed into the nail feed cylinder 22 from the blowback chamber 18 via the air line 24 at a predetermined timing (after the nail is struck), and the feed piston is fed. 23. The feed lever 25 and the feed claw 26 are retracted, and by discharging the compressed air, the feed piston 23, the feed lever 25, and the feed claw 26 are advanced by the spring 27.

On the other hand, the door 21 is an opening and closing feed passage 11, and is formed in a box shape, and a check claw 28 is provided on the inner side thereof. The check claw 28 is formed at the front end of the check claw member 29, and the check claw member 29 is provided to be freely rotatable at the support shaft 30 provided to the door 21. The check claws 28 are formed in a zigzag shape, and the front end 31 of the check claws 28 is bent to be slightly biased toward the feed passage 11 side. The torsion coil spring 32 is wound around the support shaft 30, whereby the check claw member 29 is always energized toward the center side of the feed passage 11, and the joint pin A is pressed.

According to the feeding mechanism, when the stapling nail A is loaded in the magazine 5 and the nail feeding mechanism is actuated, the feeding piston 23 is once retracted as shown in Fig. 4(b), as shown in Fig. 4 (c). ) Advance as shown. At the time of advancement, the feed claw 26 is engaged with the feed claw engagement portion 60 of the connecting piece 13 that is connected to the upper end of the staple A, and the connection claw A is sent forward, as shown in Fig. 4(d). The nail a in the front is supplied to the outlet 4. Then, after the nail a is shot as shown in Fig. 4(a), the feed piston 23 is retracted as shown in Fig. 4(b), but if the connecting pin A is intended to move in the opposite direction, as shown in Fig. 4 (b) (c), since the check claws 28 are engaged with the engagement recesses 14 of the coupling piece 13, the connection nails A cannot move and stop at the same position. Therefore, the feed claw 26 is retracted from the feed path 11 and is surely detached from the connecting piece 13. Further, when the feed piston 23 is advanced, the connecting pin A is also subjected to the forward force. Since the check claws 28 cannot be engaged with the engagement recesses 14, the connection staples A are sent to the front. In this manner, each time the feed piston 23 reciprocates, a nail is fed to the ejection opening 4 of the head 3.

Further, as shown in Figs. 11(a), (b) and 12, the door 21 is provided to be freely rotatable on the door rotation shaft 70 provided along the head portion 3. The door 21 covers the opening of the box-shaped door body 61 with the surface plate 62. The support shaft 30 is disposed between the upper plate 63 and the lower plate 64 of the door body 61, and the check claw member 29 is rotatably provided on the support shaft. 30. The check claw member 29 is a plate-shaped member, and the check claws 28 are formed from the intermediate portion toward the front end portion, and the rear portion is branched into two. The front portion of the check claw member 29 is formed in a zigzag shape, and the front end 31 of the check claw 28 is bent to be slightly biased toward the feed passage 11 side. The check claws 28 are also separated into upper and lower sides, but may be integrally formed up and down. Further, the support piece 67 is formed to be bent at the upper portion 65 and the lower portion 66 of the rear portion of the check claw member 29, and the support piece 67 is rotatably fitted to the support shaft 30. Further, the torsion coil spring 32 is wound around the support shaft 30, and one end 32a thereof is engaged with the surface of the surface plate 62 of the door, and the other end 32b is engaged with the intermediate portion of the check claw member 29. Therefore, the check claw member 29 is always energized toward the center side of the feed passage 11, and the connecting piece 13 is pressed.

Further, the planar portion 28b continuous with the front end 28a of the check claw 28 abuts against the outer edge portion 13a of the connecting piece 13. In this manner, since the contact claws 28 are in long contact with the connecting piece 13, the contact area is also large. Therefore, when engaging with the engaging recessed portion 14, the engaging portion of the connecting piece 13 and the front end 28a can be suppressed. The heart rotates and falls off, and controls the posture of the connecting piece 13, and it is surely prevented from moving in the reverse direction.

Further, as shown in Fig. 12, the engagement recessed portion 14 is provided at the same position as the upper and lower connecting pieces 13 in the vertical direction. On the other hand, when the check claws 28 of the nail feeding mechanism are engaged with the engaging recessed portions 14 of the connecting piece 13 as described above, as shown in Fig. 15(a), the connecting pieces 13 of the upper and lower pieces are joined together. When the position is within the width W1 of the upper portion 28' of the branching pawl 28, the check claw 28 can be surely engaged with the engaging recess 14. In other words, even if the connecting piece 13 is displaced within the range of the width dimension, the check claw 28 is engaged with the engaging recessed portion 14.

Further, even if the two coupling pieces 13 cannot be engaged with one of the engagement recesses 14, they can be engaged with the other engagement recesses 14. That is, as shown in Fig. 15(b), even if the position of the upper connecting piece 13 is located within the width W1 of the upper portion 28' of the branching pawl 28, and the position of the lower connecting piece 13 is located at the branching claw of the branch When the width 28 of the lower portion 28" is 28, the check claws 28 can be surely engaged with the engagement recesses 14.

In this manner, the check claws 28 do not have to be inserted between the connecting pieces 13 of the upper and lower connecting nails as in the prior art. Because it is a plate-like body, even if the vertical position of the connecting piece 13 of the fastening nail is slightly shifted, the end surface of the connecting piece 13 on the substantially straight connecting portion 13b side is pressed, and the engaging recessed portion 14 is surely engaged. Since the position of the nail a is substantially correct, the feed failure due to the positional deviation of the upper and lower sides of the web 13 is not obtained, and the reliability and safety are improved.

Similarly, since the positional accuracy of the interlocking claws 28 is not required, the door 21 can be formed by the sheet metal processing to form the check claw member 29, and the synthetic tree is utilized. The grease constitutes the door body 61, and the cost of the parts can be reduced, and the door 21 as a whole can be made lighter.

Further, although the branching claws 28 are described above, even if they are not branched, the position of the upper and lower connecting pieces 13 is located within the width of the front end 31 of the check claws 28, and the check claws 28 can of course be The engagement recess 14 is engaged.

(contact member)

Next, as shown in Fig. 5, the contact member 33 is provided along the head 3. The contact member 33 is a safety device, and is provided with a cylindrical contact top 34 that is disposed to protrude from the front end of the head portion 3, a first arm 35 that supports the contact top 34 to slide in the driving direction of the nail, and a first arm 35 that is disposed on the first arm. The second arm 36 is formed between the 35 and the trigger handle 15. The one end 36a of the second arm 36 is coupled to the first arm 35, and the other end 36b is disposed to be engageable with the contact lever 37 provided on the trigger handle 15 as shown in Fig. 1 . Further, the compression spring 53 is disposed between the second arm 36 and the head 3. Thereby, the contact member 33 is energized downward, and the contact top 34 protrudes downward from the front end of the head 3.

Further, even if the operation of the trigger lever 15 is performed in a state where the contact top 34 protrudes from the head portion 3, since the contact lever 37 does not operate, the operation is invalid and the nailing machine does not start. In contrast, when the contact member 33 is pressed against the driven member, and the contact member 33 is relatively slid toward the pushed-in direction against the compression spring 53 along the head portion 3, the other end 36b of the second arm 36 is made The contact lever 37 is actuated, the buckle operation of the trigger handle 15 is made effective, and the nailing machine is activated. Even if the sliding amount of the contact member 33 is insufficient, the safety device is not released, and the operation of the trigger handle 15 does not become effective.

(feeding claw and contact arm)

As shown in Fig. 1, the side end portion 42 on the side of the injection port 4 of the feed claw 26 is formed to extend long downward, and is configured to close the feed passage 11 by the side end portion 42 and the door 21. The injection port 4 (refer to Fig. 4 (a)). On the other hand, the engaging portion 43 (see FIG. 5) that is engageable with the distal end (lower end) portion 42a of the side end portion 42 of the feeding claw 26 that retreats to the outside of the feeding path 11 is formed in the contact member 33. Above the contact top 34, a safety mechanism is formed by the feed claw 26 and the contact member 33. Further, the engagement position is set lower than the position of the contact member 33 that enables the operation of the trigger handle 15 to become effective. When the feed claw 26 is not rotated, as shown in Fig. 2(a), the engaging portion 43 of the contact top 34 and the front end portion of the feed claw 26 are not engaged.

In this configuration, when the connecting pin A is loaded in the feeding path 11, the door 21 is closed, and the connecting pin A is pulled out from the magazine 5, and the front nail and the feeding claw 26 are engaged with each other as shown in Fig. 4 (Fig. 4) As shown in a), the door 21 is closed in a state where the connecting nail A is arranged in the feed path 11. When the fastening nail A is normally loaded, since the feeding claw 26 does not rotate outward, the claw portion 44 of the feeding claw 26 enters the fastening nail A, and the feeding mechanism does operate, and the nail is normally fed. Further, when the front end of the head portion 3 is pressed against the driven member, since the contact member 33 is moved only by a sufficient amount, the triggering operation of the trigger handle 15 is also effectively performed, and the nail is normally driven in. .

On the other hand, when the anchoring nail A is mis-slanted, or the claw portion 44 that is not loaded with the feeding claw 26 is correctly engaged, and the door 21 is forcibly closed, since the door 21 pushes out the fastening nail A, the fastening nail is attached. A pushes the feed claw 26 to the outside. Thus, the feed claw 26 retreats outward, and the feed end 26 of the feed claw 26 is 42a. The position is also moved from the state of Fig. 2(a) as shown in Fig. 2(b). In this state, the nail is pressed, and the front end of the contact member 33 is pressed against the driven member to slide the contact member 33 upward relative to the nailer body because the front end portion of the feed claw 26 is moved in the middle thereof. Since it protrudes, the engaging portion 43 abuts against the front end 42a of the feed claw 26 and cannot enter. The contact member 33 can no longer move upward. If the movement of the contact member 33 is restricted, the operation of the trigger handle 15 is invalidated, and the action of the nail insertion cannot be performed. As shown in Fig. 2(c), the same applies to the case where the feed claw 26 is not advanced to the forward end. Therefore, it is possible to prevent the nail from being clogged in the head 3.

The defect as described above may occur during the feeding of the fastening pegs A after the attachment of the fastening pegs A correctly, but even in this case, the feeding claws 26 are retracted to the outside as described above because The movement of the contact member 33 is restricted, and a part of the connecting pin A pushes the feeding claw 26 outward, so that the driving operation of the nail can be surely prevented.

In addition, the height of the engaging recessed portion 14 or the length of the nail shaft is different for each of the connecting clips A, but the shape of the engaging recessed portion 14 is the same, and a plurality of connecting buckles continuously formed along the nail axis direction may be used. The nail is combined with a common nailing machine. In this case, as shown in Fig. 14 (a) and (b), the nailing machine can individually load the respective fastening pins A, A' which can be combined, as shown in Fig. 15 (a) and (b). The check claws 28 are formed so as to be engageable with the engagement recesses having the largest distance between the upper and lower engagement recesses 14 of the engagement recesses 14 of the connection pins A and A'. In other words, the distal end 31 of the check claw 28 may be formed so that the maximum width is larger than the largest interval (for example, H2 in FIG. 15(b)) of the interval between the upper and lower engagement recesses 14.

Therefore, it is possible to surely prevent the interlocking nails A and A' of the different types from moving in the reverse direction by the common check claws 28 when feeding the fastening nails. Even if the engaging portion is the engaging convex portion, or the engaging portion is disposed to be inclined with respect to the nail shaft.

According to the combination of the plurality of connecting pins A, A' and the nailing machine having the shared stopping claws 28 as described above, the check claws 28 can be shared, because it is not necessary to replace the various connecting pins. The claws 28 or the nailing machine can further suppress the overall cost. Moreover, since the scale of the combination becomes larger, the effect is further increased.

(the last one)

Further, the front portion of the check claw member 29 is formed in a zigzag shape, and the front end 31 of the check claw 28 is slightly curved toward the feed passage 11 side. On the other hand, when the feed claw 26 is retracted as shown in Fig. 6(a), as shown in Fig. 6(b), the front end 31 of the check claw 28 and the triangular engagement recess of the connecting piece 13 of the fastening nail A are joined. 14 is engaged, and the base of the check claw 28 is also engaged with the side of the connecting piece 13. Therefore, the check claws 28 are engaged with at least two positions p and q before and after the center of the nail a. Therefore, after the nail of the second branch from the end of the fastening nail A is struck, when the feeding claw 26 returns to the rear of the last nail a, the side of the last nail a is retracted while passing over, but because of the check The claws 28 are supported by the two positions p and q at least in front of and behind the center of the nail shaft of the last nail a, so that the last nail a is prevented from rotating. Therefore, the check claws 28 are not detached from the engaging recessed portion 14 of the connecting pin A, and the last nail a can be surely fed. In contrast, as shown in Fig. 6(c), if the front end of the pawl 28' is straight and does not support the rear of the nail, it is possible that the rear of the last nail a is pushed back when the feed claw 26 is moved to the rear. And the front end of the check claw 28' and the engaging portion of the engaging recess 14 are rotated about the center, and finally the check claw 28' is detached from the engaging recessed portion 14, and the last nail is not pushed forward because the locking action is lost. Feed.

(other forms of the engagement part)

Next, the engaging portion 43 of the contact member 33 is not limited to be formed integrally with the contact top 34. It can also be constructed as shown in Figure 7. That is, the main arm 46 of the contact member 33 whose upper end is connected to the trigger handle 15 is coupled to the guide 47 that guides the contact top 34 in the driving direction, and the engaging portion 52 is provided in the middle of the main arm 46. The lower end bending portion 50 of the sub-arm 48 that branches is formed, and the compression spring 53 that energizes the contact member 33 downward is disposed in the engaging portion 52. It should be noted that, in an embodiment, the engaging portion 52 can be a snap pin. The upper end of the engaging portion 52 is disposed so as to be engageable with the feeding claw 26 that retreats to the outside of the feeding path 11. The engagement position is set lower than the position at which the contact member 33 can make the operation of the trigger handle 15 effective.

Further, the basic configuration of the nail feeding mechanism or the like is the same as that shown in the above-described form.

According to the safety mechanism of this configuration, the door 21 is opened, and the connecting pin A is pulled out from the magazine 5, and the front head of the connecting pin A and the second nail are engaged with the feeding claw 26, as shown in Fig. 8(a). As shown in the figure, the door 21 is closed in a state where the connecting nail A is arranged in the feed path 11. At this time, if the fastening pin A is normally loaded, since the feeding claw 26 does not rotate to the outside, the feeding mechanism does operate and the nail is normally fed. Further, when the nail is pressed against the driven member, the contact member 33 does not interfere with the feed claw 26 and moves upward with respect to the nailer body, so that it is also effective. Trigger Start operation. Therefore, the nailing is also normally performed.

On the other hand, when the anchoring nail A is loaded by mistake, or when the claw is not correctly engaged with the claw of the feeding claw 26, and the door 21 is closed, as shown in FIG. 8(b), the door 21 is pressed and connected. When the nail A is fastened and the feed claw 26 is pushed outward, the feed claw 26 is retracted to the outside. In order to push the nail in this state and press the contact top 34 downward against the driven member, the contact member 33 relatively moves upward relative to the nailer body. However, since the feed claw 26 protrudes within the movement range of the engagement portion 52, the engagement portion 52 engages with the feed claw 26. Therefore, the contact member 33 cannot be moved further upward because the triggering operation of the trigger becomes invalid, so that the nailing machine cannot be started. Therefore, it is possible to prevent the nail from being clogged in the head 3.

(other forms of contact members)

Second, the configuration of the contact member 33 is not limited to have the contact top 34. For example, as shown in FIG. 9, instead of the contact top 34, the movable head portion 55 may be provided in a configuration in which the lower end of the first arm 35 which is provided at one end to be engaged with the trigger handle 15 is provided. The movable head portion 55 is a member that is provided to be slidable in the direction in which the head portion 3 is slid toward the driving direction, and includes an ejection opening 4 that is continuous with the ejection opening 4 of the head portion 3, and is configured to directly punch the nail from the movable head portion 55. The engaging portion 43 is formed at a connecting portion between the second arm 36 and the movable head portion 55. The engaging portion 43 is also formed to be engageable with the feeding claw 26 that retreats outward.

Further, the basic configuration of the nail feeding mechanism and the like is the same as that shown in the form of Fig. 1 .

In this configuration, when the connecting pin A is loaded in the feeding path 11, the door 21 is opened, and the connecting pin A is pulled out from the magazine 5 to connect the pin A. The nail is engaged with the feed claw 26, and as shown in Fig. 10(a), the door 21 is closed in a state where the joint pin A is arranged in the feed path 11. If the fastening pin A is normally loaded, since the feeding claw 26 does not rotate to the outside, the feeding mechanism does operate and the nail is normally fed. Further, when the front end of the head portion 3 is pressed against the driven member, the movable head portion 55 also moves upward with respect to the nailer body without interfering with the feed claws 26, so that the trigger hand is also effectively performed. Put the starting operation of 15. Therefore, the nailing is also normally performed.

On the other hand, if the anchoring nail A is misaligned or loaded, or the claw portion 44 that is not properly engaged with the feeding claw 26 is properly engaged, and the door 21 is closed, as shown in FIG. 10(b), since the door 21 is pressed When the staples A are joined and the feed claws 26 are pushed outward, the feed claws 26 are retracted outward. In order to press the front end of the head 3 against the driven member in this state, the movable head 55 slides upward relative to the nailer body. However, since the feed claw 26 protrudes during the movement of the engagement portion 43, the engagement portion 43 engages with the feed claw 26 and cannot move further upward. When the movement of the movable head 55 is restricted, the trigger operation of the trigger becomes invalid, and the driving operation of the nail cannot be performed. Therefore, it is possible to prevent the nail from being clogged in the head 3.

The defect as described above may occur after the attachment of the fastening pin A is correctly also during the feeding of the fastening peg A. Even in this case, as described above, since the movement of the contact member is restricted, and a part of the connecting pin A pushes the feeding claw 26 outward, the driving operation of the nail can be surely prevented.

Further, in the embodiment, the contact member 33 is configured to guide the driven nail in the driving direction, but the invention is not limited thereto. It is also possible to not guide the composition of the nail that is shot.

Further, in this embodiment, an example of a connecting nail is described as a connecting fixture, but it is not limited to a nail, and may be a screw or a wood screw.

A‧‧‧link pin

1‧‧‧nail machine body

3‧‧‧ head

4‧‧‧ shots

11‧‧‧ Feeding pathway

13‧‧‧Links

13a‧‧‧The outer edge

13b‧‧‧Connecting Department

13c‧‧‧Link Stud Holder

14‧‧‧Clamping recess

21‧‧‧

26‧‧‧Feeding claws

28‧‧‧

33‧‧‧Contact members

34‧‧‧Contact top

43‧‧‧Care Department

52‧‧‧Clock Department

55‧‧‧ movable head

Fig. 1 is a longitudinal sectional view of a nailing machine in the form of a link pin driving machine.

Fig. 2(a), Fig. 2(b) and Fig. 2(c) are views showing the head of the nailing machine as seen from below, showing an engagement form between the feed claw and the contact arm.

Fig. 3 (a) and Fig. 3 (b) are a front view of the connecting stud and a plan view of the connecting piece.

Fig. 4(a), Fig. 4(b), Fig. 4(c) and Fig. 4(d) are diagrams showing the operation of the nail feeding mechanism.

Fig. 5 is a side view showing a nailing machine of a contact member.

Fig. 6(a) is a cross-sectional view showing the engagement state of the pawn when the feed claw is moved backward in order to feed a residual nail, and Fig. 6(b) is an enlarged view thereof, Fig. 6 (c) is a cross-sectional view showing an engagement state when the check claw is in a flat shape.

Fig. 7 is a perspective view showing another embodiment of the safety device.

Fig. 8(a) and Fig. 8(b) are explanatory views showing an operation mode of the safety device shown in Fig. 7.

Fig. 9 is a perspective view showing another embodiment of the safety device.

Fig. 10 (a) and Fig. 10 (b) are explanatory views showing an operation mode of the safety device shown in Fig. 9.

Fig. 11(a) is a perspective view showing a door portion of the non-return mechanism, and Fig. 11(b) is a perspective view showing a state in which the door portion is removed.

Fig. 12 is a perspective view showing the relationship between the check claw and the fastening nail.

Figure 13 is a perspective view showing the relationship between the check claw and the fastening nail.

Fig. 14 (a) and Fig. 14 (b) are perspective views each showing a check relationship between the shared pawl and the different joint pin.

Fig. 15 (a) and Fig. 15 (b) are front views each showing a check relationship between the shared pawl and the different joint pin.

1‧‧‧nail machine body

2‧‧‧handle

3‧‧‧ head

4‧‧‧ shots

5‧‧‧nails

6‧‧‧impact cylinder

7‧‧‧impact piston

8‧‧‧ drive

10‧‧‧Air room

11‧‧‧ Feeding pathway

15‧‧‧Laser handle

16‧‧‧Starting valve

17‧‧‧Main valve

18‧‧‧ Back room

19‧‧‧Axis

22‧‧‧Feed cylinder

24‧‧‧Air line

25‧‧‧Feed rod

26‧‧‧Feeding claws

27‧‧‧ Spring

34‧‧‧Contact top

36‧‧‧2nd arm

36a‧‧‧One end of the second arm

36b‧‧‧The other end of the second arm

37‧‧‧Contact rod

42‧‧‧ side end

42a‧‧‧ front end

43‧‧‧Care Department

53‧‧‧Compression spring

Claims (6)

A connecting pin driving machine comprising: a feeding passage (11) for fastening a nail, a driving head (3) opening to a lower portion of the nailing machine body (1); and a feeding claw (26) Engaged with the connecting pin (A) loaded in the feeding passage (11), and moved to the injection port (4) of the head (3) by the connecting pin (A); The contact member (33) is disposed to slide freely along the head portion (3), and is moved relative to the nailer body (1) by pressing the driven member to activate the driving of the fastening pin The operation becomes effective; and the engaging portion (43, 52) is disposed on the contact member (33) and engages with the feeding claw (26); the feeding claw (26) is configured to be detachable from the The feed passage (11) retracts from rotation; the feed claw (26) is configured not to rotate the feed claw (26), and the joint pin (A) can be loaded in the feed passage (11) When the feeding member (33) is pressed against the driven member in a state in which the feeding claw (26) is retracted, the engaging portion (43, 52) of the contact member (33) and the feeding claw (26) ) Engage. The joint pin driver of claim 1, wherein the engaging portion (43) is formed as a cylindrical contact top (34) provided at a front end of the contact member (33). The interlocking nail driving machine of claim 1, wherein the engaging portion (52) is under the feeding claw (26) in a state of retreating rotation The party card is a combination of sales. The joint pin driver of claim 1, wherein the engaging portion (43) is formed as a movable head portion (55) provided at a front end of the contact member (33). A connecting pin driving machine comprising: a feeding passage (11) for fastening a nail, a driving head (3) opening to a lower portion of the nailing machine body (1); and a feeding claw (26) Engaged with the connecting pin (A) loaded in the feeding passage (11), and moved to the injection port (4) of the head (3) by the connecting pin (A); And the check claw (28) restricts the feeding operation of the connecting pin (A) loaded in the feeding path (11); and the connecting pin (A) is connected via the upper and lower connecting pieces (13) a plurality of clips (a), and on each side of the upper and lower webs (13), the engaging recesses (14) or the engaging projections are formed at positions corresponding to the upper and lower sides; in the feed path (11) And a plurality of connecting clasps (a) having different spacings between the upper and lower engaging recesses (14) or the engaging convex portions; the feeding claws (26) or the check claws (28) The configuration is such that, in the case where any of the plurality of types of fastening clasps (a) is used, the upper and lower engagement recesses (14) or the engagement projections can be engaged. A connecting pin driving machine comprising: a feeding passage (11) for fastening a nail, a driving head (3) opening to a lower portion of the nailing machine body (1); and a feeding claw (26) And a connecting pin loaded in the feeding passage (11) (A) engaging, and sending a connecting pin (A) to the ejection opening (4) of the head (3) by moving in the feeding direction; and stopping the claw (28), restricting loading into the Feeding action of the connecting pin (A) of the passage (11); the connecting pin (A) comprising a connecting belt (13) which alternately forms a shaft hole (13d) having a retaining pin (a) The nail holding portion (13c) and the connecting portion (13b) that connects the adjacent nail holding portions (13c) are provided on the left and right sides of the connecting belt (13) The side of the connecting belt (13) is further formed with an engaging recess (14) or an engaging convex portion at a predetermined interval along the outer edge portion (13a); the check claw (28) is formed to be compatible with the card The recessed portion (14) is engaged.