JP2010029944A - Magazine of nail driving machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To adaptively use a nail with a short shaft length even if a lateral opening type magazine is used. <P>SOLUTION: This magazine comprises a cylindrical side wall 1, a bottom 2, and a cover 3 for housing a connection nail which is spirally wound. The side wall 1 is split into two, a cover body 5 including the other side wall 1b and the cover 3 can be opened or closed in parallel to the bottom 2 via a hinge provided at an end of one side wall 1a. A nail post 6 is fixed to the center of the bottom 2, and a nail support 11 is arranged on the nail post 6 movably upward and downward. A height adjusting mechanism is provided between the nail post 6 and the nail support 11. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a magazine for a nailing machine that accommodates a connecting nail wound in a spiral shape, and in which a nail support is arranged so as to be movable up and down along a nail post fixed to a bottom portion.

  Generally, a nailing machine opens and closes the high pressure air in the air chamber with respect to the upper end of the striking cylinder by the operation of the main valve, drives the striking piston housed inside by the high pressure air supplied to the striking cylinder, and strikes The nails such as driving nails and driving screws supplied from the magazine to the driving nose of the nailing machine body are driven by driving means such as a driver and driver bit integrally coupled to the piston. It is configured as follows.

  By the way, a magazine is continuously provided in the nose portion, and the connecting nails loaded in the magazine are sequentially sent to the nose portion. The connecting nail is obtained by connecting a large number of nails via a connecting material, wound in a spiral shape, and stored in a cylindrical magazine. A space formed at the center of the spiral is inserted into a nail post provided at the center of the bottom of the magazine for storage.

By the way, there are several types of connecting nails, ranging from short to long depending on the length of the nail shaft, so the height of the nail support must be adjusted. Since the position of the head of the nail does not change in any type of nail, when adjusting the position of the nail support, the long one needs to be adjusted to the low position and the short one needs to be adjusted to the high position.
Japanese Utility Model Publication No. 56-48480 Japanese Utility Model Publication No. 57-100475

  However, conventionally, as shown in Patent Document 1, since the nail support and the nail post are integrally formed, if the nail support is moved to a high position in order to cope with a short nail, the nail post inevitably occurs. The position of becomes higher. Therefore, in a magazine of a type in which the lid is opened and closed laterally (parallel to the bottom) with respect to the magazine main body, the nail post becomes an obstacle when closing, and it is not possible to cope with a nail having a short shaft length. In this case, only a magazine of a type that opens and closes the lid upward or obliquely upward with respect to the magazine body, such as the magazine shown in Patent Document 2.

  An object of the present invention is to solve the above problems and to provide a nailing machine magazine capable of dealing with a nail having a short shaft length even if it is a laterally open type magazine.

  In order to solve the above-mentioned problem, the invention according to claim 1 is provided with a cylindrical side wall, a bottom part, and a lid part to accommodate a spirally connected connecting nail, and the side wall is divided into two parts. In a magazine that can open and close the lid that includes the other side wall and the lid part through a hinge part provided at the end of one side wall, a nail post is erected in the center of the bottom part, and a nail support is provided on the nail post And a height adjustment mechanism between the nail post and the nail support, and the height adjustment mechanism includes an adjustment groove provided on the nail post with an interval, and the nail support above. And an engaging member attached to each adjustment groove so as to be engageable.

  According to a second aspect of the present invention, in the first aspect of the present invention, the engaging member can be engaged with and disengaged from the adjustment groove by rotating the nail support by a predetermined angle.

  According to a third aspect of the present invention, in the first aspect, the height adjustment mechanism protrudes so as to be engageable with the adjustment groove from an adjustment groove provided on the side wall at an interval and an end portion of the nail support. It is characterized by comprising a protrusion.

  The invention according to claim 4 is characterized in that, in claim 3, the nail post is moved so that the protrusion of the nail support can be engaged with and disengaged from the adjustment groove of the side wall.

  According to the first aspect of the present invention, the nail post is fixed to the center of the bottom of the cylindrical magazine, the nail support is disposed on the nail post so as to be movable up and down, and the height adjusting mechanism is provided between the nail post and the nail support. Since the height position of the nail post is determined, the lid will not hit the nail post even if the lid is closed even if the height of the nail support is adjusted according to the axial length of the nail . Therefore, even a side-opening type magazine can handle nails having a short axial length.

  Further, after the connecting nail is stored and loaded, the gap between the nail post and the lid portion of the lid body can always be held at a minimum. Therefore, when the connecting nail wound around the nail post in a spiral shape is sent to the injection unit (nose portion) of the nail driver, the nail head is caught in the gap or the nail shafts are entangled with each other. Can be effectively prevented. Therefore, since poor feeding hardly occurs, the performance and safety of the nailing machine are improved.

  Furthermore, the nail support moves independently from the nail post, and even if the position of the nail support increases, the position of the nail post does not change, so the number of adjustment grooves can be increased to finely adjust the switching height. .

  Furthermore, since the adjustment groove is provided on the nail post with an interval, and the engagement member is attached to the nail support so as to be able to engage with the adjustment groove, the engagement member is engaged with the adjustment groove. The height of the nail support can be adjusted by combining them.

  According to the invention of claim 2, since the engaging member is configured to be able to be engaged with and disengaged from the adjustment groove by rotating the nail support by a predetermined angle, the nail support is rotated to disengage, Since it can be adjusted by moving and rotating, no special tool is required, and the adjustment work can be performed easily.

  According to the invention of claim 3, the height adjustment mechanism is configured by an adjustment groove provided on the side wall at an interval, and a protrusion protruding from the end of the nail support so as to be engageable with the adjustment groove. Therefore, the height of the nail support can be adjusted by engaging the protrusion at the end of the nail support with the adjustment groove.

  According to the invention which concerns on Claim 4, since the protrusion of a nail support was made detachable with the adjustment groove | channel of a side wall by moving a nail post, by rotating a nail post or moving in parallel, The protrusion and the adjustment groove can be engaged and disengaged, and an adjustment operation can be easily performed without requiring a special tool.

  FIG. 1 is a perspective view of a magazine provided in the nailing machine, FIG. 2 is a perspective view of an upper body with a lid opened sideways, and FIG. 3 is an exploded perspective view of the magazine.

  In the above figure, the symbol A indicates a magazine. The magazine A includes a cylindrical side wall 1, a bottom portion 2, and a lid portion 3, a side wall 1 a on the magazine main body 4 side that fixes the side wall 1 to a nailing machine main body (not shown), and a magazine main body 4. It is divided into two side walls 1b on the side of the lid 5 that can be freely opened and closed.

  The magazine body 4 includes a circular bottom 2 and a side wall 1a, and an attachment hole (non-circular) 7 is formed at the center of the bottom 2. The base of the nail post 6 is fixed to the mounting hole 7. Moreover, the attachment arm 8 and the attachment part 9 for fixing to a nailing machine main body are formed in the both sides of the side wall 1a.

  The lid 5 is integrally formed with a circular lid 3 and the other side wall 1b.

  Further, a hinge portion 10 is provided at one end of the side wall 1 a of the magazine body 4, and the side wall 1 of the lid 5 is connected via the hinge portion 10. As a result, the lid 5 is attached to the hinge portion 10 so as to be capable of rotating and opening in the lateral direction, that is, parallel to the bottom portion 2. When the lid 5 is closed with respect to the magazine body 4, a gap is formed between the side walls 1 on both sides for a connecting nail (not shown) to pass through.

  The connecting nails are housed in the magazine while being wound in a spiral shape, the center of which is inserted into a nail post 6 fixed to the mounting hole 7 in the upper bottom 2, and the lid 5 is attached to the magazine body 4. When the door is closed, a feeding passage for the connecting nail is formed between the side walls 1 on both sides when the connecting nail is pulled out.

  Next, a circular nail support 11 having a cylindrical portion at the center is disposed on the nail post 6 so as to be movable up and down, and a height adjusting mechanism is provided between the nail post 6 and the nail support 11.

  A line (groove or convex portion) 13 provided on the side wall 1 a of the magazine body 4 is a line that serves as a guide for height positioning of the nail support 11.

  As shown in FIGS. 4 and 5, the height adjustment mechanism includes an adjustment groove 12 provided at intervals in the nail post 6, and a member attached to the nail support 11 so as to be engageable with the adjustment groove 12. The joint member 14 is constituted. That is, the nail post 6 is formed in a cylindrical shape, but the adjustment groove 12 is cut and formed on both sides of the outer peripheral surface with a certain interval. A disk-shaped nail support 11 is slidably fitted to the nail post 6. 19 is a retainer.

  A hairpin type metal spring support bar (engaging member) 14 is disposed on the lower surface of the nail support 11. A first holding portion 15 that engages with the lower surface of the tip of the support bar 14 is formed on the lower surface of the nail support 11. The front end of the support bar 14 is wound around the first holding portion 15, and the support bar 14 is urged in the direction in which both the leg portions 16 are closed.

  Further, a second holding portion 18 that holds both leg portions 16 of the support bar 14 is formed on the lower surface of the nail support 11 on the side opposite to the holding portion. The 2nd holding | maintenance part 18 is a U-shaped plate-shaped part, and is formed so that both the leg parts 16 of the support bar 14 can be hold | maintained from the bottom. Note that the end portions of both leg portions 16 of the support bar 14 are bent outward so as not to be detached from the second holding portion 18.

  When the nail post 6 is fitted into the through hole at the center of the nail support 11, both legs 16 are constantly urged so as to sandwich the nail post 6 by the elasticity of the support bar 14.

  According to the height adjustment mechanism having the above configuration, when the engaging portion 20 (see FIG. 5) in the center of the leg portion of the support bar 14 is engaged with the adjustment groove 12, the nail support 11 is held in that position. The When the nail support 11 is moved up and down, the nail support 11 is rotated substantially at a right angle as shown in FIG. At this time, since the diameter of the nail post 6 increases between the both leg portions 16 of the support bar 14, both the leg portions 16 are forcibly expanded. When the nail support 11 is rotated substantially at a right angle, the leg portions 16 abut on the maximum diameter portion of the nail post 6 without the adjustment groove 12. In this position, as shown in FIG. 7, the support bar 14 is released from the adjustment groove 12, so that when the nail support 11 is pushed up or down, the nail support 11 can move upward or downward. Therefore, after the desired adjustment groove 12 is moved to a position and then the nail support 11 is rotated again at a substantially right angle, the engaging portions 20 of the both leg portions 16 of the support bar 14 are engaged with the adjustment groove 12. . Therefore, at this position, the nail support 11 is stably held and cannot be moved either up or down.

  In this way, the support bar 14 can be engaged and disengaged with respect to the adjustment groove 12 simply by rotating the nail support 11, so when loading a long connecting nail, the nail support 11 is set at a low position. When loading a short connecting nail, the nail support 11 can be set at a high position. In any case, since the position of the nail post 6 does not change, the nail post 6 does not obstruct the closing operation of the lid 3 when the lid 5 is closed in parallel with the bottom 2.

  In addition, the gap between the nail post 6 and the lid portion 3 of the lid body 5 can be always kept at a minimum after the connecting nail is stored and loaded. Therefore, when the connecting nail wound around the nail post 6 in a spiral shape is sent out to the injection part (nose part) of the nail driver, the nail head is caught in the gap or the nail shafts are entangled with each other. Can be effectively prevented. Therefore, there is almost no feeding failure.

  In addition, since the area where the adjustment groove 12 of the nail post 6 engages with the support bar 14 is large, the nail support 11 can be stably held even when subjected to an impact due to an accident such as dropping of the nail driver.

  Furthermore, since the support bar 14 is made of a hairpin type metal (iron) spring, it is strong and difficult to plastically deform, and no settling occurs.

  The height adjusting mechanism may be configured as shown in FIGS. That is, a plurality of adjustment grooves 12 are formed on the outer periphery of the cylindrical nail post 6 of the magazine body, and a guide groove 22 is formed over the entire length from the upper end to the lower end, and the guide groove 22 and the groove bottom of each adjustment groove 12 are formed. Are formed continuously.

  In the center of the nail support 11, a drum-shaped through hole 23 is formed which is substantially the same as the cross section of the nail post 6 excluding the adjustment groove 12, and projecting pieces 24 corresponding to the guide groove 22 are formed on both sides. Yes. On the lower surface of the nail support 11, an annular edge 26 is formed around the through hole 23, an engagement pin 27 is attached to one side thereof, and a spring receiving piece 28 is formed in the vicinity thereof. A support plate 30 made of synthetic resin is fitted inside the annular edge 26. As shown in FIG. 9, a through hole 31 having the same size and shape as the through hole 23 of the nail support 11 is formed in the center of the support plate 30, and a projecting piece 25 corresponding to the projecting piece 24 is formed. Yes. An arcuate engagement edge 33 and a “<”-shaped engagement edge 34 are continuously formed on the outer edge of the support plate 30. A spring receiving portion 32 is formed near one end of the arcuate engagement edge 33. A torsion spring 35 is wound between the nail support 11 and the support plate 30, and one end thereof is engaged with the spring receiving piece 28 of the nail support 11 and the other end is engaged with the spring receiving portion 32 of the support plate 30.

  In the initial state, as shown in FIG. 10B, the protruding piece 24 of the nail support 11 is engaged with the adjustment groove 12 of the nail post 6, and the protruding piece 25 of the support plate 30 is the guide groove 22 of the nail post 6. Is engaged. When the nail support 11 is rotated as shown in FIG. 10A from this state, the projecting piece 24 of the nail support 11 enters the guide groove 22 of the nail post 6, and the projecting piece 25 of the support plate 30 is also of the nail post 6. The nail support 11 can move up and down with respect to the nail post 6 while remaining in the guide groove 22. When the nail support 11 is moved to a position corresponding to the adjustment groove 12 of the nail post 6 with the nail support 11 being rotated and released, the elastic state of the torsion spring 35 returns to the initial state.

  Therefore, according to the above configuration, the lid 5 of the magazine can always be opened and closed smoothly even if the position of the nail support 11 is increased in order to cope with a nail having a short axial length.

  Next, FIGS. 11 and 12 show another height adjustment mechanism. The support bar 14 is rotatably provided along the lower surface of the nail support 11, and the support bar 14 is always moved to the center side by the spring 36. It is energized to do.

  According to the above configuration, after the magazine is opened by rotating the lid 5, the support bar 14 can be rotated to be engaged with and disengaged from the adjustment groove 12.

  Next, the height adjustment mechanism is not limited to the form in which the adjustment groove 12 is provided in the nail post 6. You may make it like FIG. 13 (a) (b). That is, in the figure, a plurality of adjustment grooves 37 are provided at intervals in the side wall 1a on the magazine body 4 side. On the other hand, a protrusion (engagement portion) 38 is formed at the end of the nail support 11 at a position corresponding to the adjustment groove 37. The nail post 6 that slidably supports the nail support 11 is provided so as to be movable with respect to the magazine body 4. Accordingly, by moving the nail post 6, the protrusion 38 of the nail support 11 can be engaged with and disengaged from the adjustment groove 37 to adjust the engagement position.

  The adjusting groove 37 is formed as a hole penetrating the side wall 1a. However, since the groove and the hole are the same, no particular distinction is made. Further, the magazine is of the type that opens in the horizontal direction, that is, in parallel with the bottom portion 2 in the above-described form and the form shown below.

  As a configuration for moving the nail post 6, a protruding edge 39 is formed at a right angle at the lower end of the nail post 6, and the nail post 6 is usually nail by a spring 40 provided between the top of the nail post 6 and the bottom 2 of the magazine body 4. When the position of the nail support 11 is adjusted while the post 6 is held vertically to the bottom 2, the nail post 6 is tilted to remove the protrusion 38 of the nail support 11 from the adjustment groove 37 of the side wall 1, and the nail support 11 is moved up and down. It may be possible to engage with another adjustment groove 37.

  In addition, since the opposite side of the protrusion 38 of the nail support 11 is supported by the side wall 1b of the lid 5, the nail post 6 is stably held.

  Further, as shown in FIGS. 14A and 14B, a hook-like member 42 is coupled downward from the center of the plate 41 having a size that can be fitted inside the nail post 6, and the plate 41 and the nail post 6 are combined. A compression spring 43 is disposed between the bottom portion 2 of the magazine body 4 and the hook-like member 42 is passed through a long hole 44 formed in the bottom portion 2 of the magazine body 4, and a hook-like member 45 is rotatably provided at the lower end thereof. You may comprise so that the height of the said board 41 can be changed by rotating the bowl-shaped member 45. FIG. In this case, the position of the nail post 6 can be changed by increasing the height of the plate 41 and weakening the spring force to move the hook-shaped member 42 along the long hole 44. When the protrusion 38 of the nail support 11 and the adjustment groove 37 are engaged, the hook-like member 45 is rotated to lower the plate body 41 so that the spring force of the compression spring 43 is increased, and the nail support 11 is moved to the bottom 2. Can be held vertically. Reference numeral 50 denotes a stabilizer.

  Further, as shown in FIGS. 15A and 15B, the lower portion of the nail post 6 and the bottom portion 2 of the magazine body 4 are connected via a compression spring 46 and a link 32 so that the nail post 6 extends along the bottom portion 2. It may be configured to be movable.

  In addition to the above, for example, an adjustment groove 47 and a guide groove 48 as shown in FIG. 16 are formed on the side wall 1 of the magazine, and a protrusion 49 that can be engaged with the groove is formed at the end of the nail support 11. The structure to form may be sufficient. According to this, the protrusion can be engaged with and disengaged from the adjustment groove 47 and the guide groove 48 by rotating the nail support 11 and moving it up and down.

  According to the above configuration, the nail post 6 is fixed to the center of the bottom 2 of the cylindrical magazine, the nail support 11 is arranged on the nail post 6 so as to be movable up and down, and the height between the nail post 6 and the nail support 11 is set. Since the adjustment mechanism is provided, the height position of the nail post 6 is determined. Therefore, even if the height of the nail support 11 is adjusted according to the axial length of the nail or the lid 5 is closed in the lateral direction, the lid Part 3 does not hit the nail post 6. Therefore, even a side-opening type magazine can handle nails having a short axial length.

  In addition, the gap between the nail post 6 and the lid portion 3 of the lid body 5 can be always kept at a minimum after the connecting nail is stored and loaded. Therefore, when the connecting nail wound around the nail post 6 in a spiral shape is sent out to the injection part (nose part) of the nail driver, the nail head is caught in the gap or the nail shafts are entangled with each other. Can be effectively prevented. Therefore, since poor feeding hardly occurs, the performance and safety of the nailing machine are improved.

  Further, the nail support 11 moves independently of the nail post 6 and the position of the nail post 6 does not change even when the position of the nail support 11 is increased. The position can be set to a high position, and therefore the number of adjustment grooves 37 can be increased to finely adjust the switching height.

  Regardless of the position adjustment of the nail support 11, the height of the nail post 6 does not change regardless of the position adjustment of the nail support 11, so that the position of the nail support 11 is increased in order to accommodate a nail having a short axial length. However, the lid 5 of the magazine can always be opened and closed smoothly.

The perspective view of the magazine concerning the present invention Perspective view of the magazine opened parallel to the bottom Exploded perspective view of the magazine Perspective view from above of nail post and nail support Perspective view from below of nail post and nail support Bottom view of nail support Vertical section of nail post and nail support The perspective view of the state which opened the cover of other height adjustment mechanisms Exploded perspective view of the height adjustment mechanism (A) (b) is an operation explanatory view of the height adjustment mechanism viewed from below. Further, a longitudinal sectional view of a magazine having another height adjustment mechanism Cross section of FIG. (A) (b) is a longitudinal cross-sectional view of the usage aspect of the height adjustment mechanism of another form (A) (b) is a longitudinal cross-sectional view of the usage aspect of the height adjustment mechanism of another form (A) (b) is a longitudinal cross-sectional view of the usage aspect of the height adjustment mechanism of another form An exploded perspective view showing still another height adjustment mechanism

Explanation of symbols

DESCRIPTION OF SYMBOLS 1a, 1b Side wall 2 Bottom part 3 Lid part 4 Magazine main body 5 Lid body 6 Nail post 11 Nail support 14 Engagement member (support bar)

Claims (4)

A cylindrical side wall, a bottom part, and a lid part are provided to accommodate the spirally connected connecting nail, and the side wall is divided into two parts via a hinge part provided at the end of one side wall. In the magazine capable of opening and closing the lid including the other side wall and the lid,
A nail post is erected in the center of the bottom, and a nail support is arranged on the nail post so as to be movable up and down, and a height adjustment mechanism is provided between the nail post and the nail support.
The nail characterized in that the height adjusting mechanism is constituted by an adjusting groove provided in the nail post at an interval, and an engaging member attached to a nail support so as to be engageable with each adjusting groove. A magazine for hammering machines.   2. The nailing machine magazine according to claim 1, wherein the nail support is rotated by a predetermined angle so that the engaging member can be engaged with and disengaged from the adjusting groove.   The height adjusting mechanism includes an adjusting groove provided at an interval on the side wall, and an engaging portion protruding so as to be engageable with the adjusting groove from an end of a nail support. The nailing machine magazine according to claim 1.   4. The magazine for a nailing machine according to claim 3, wherein the nail post is moved so that the engaging portion of the nail support can be engaged with and disengaged from the adjustment groove of the side wall.

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