JP7046677B2 - Headbox with board fixing structure - Google Patents

Description

The present invention relates to a head box having a substrate fixing structure, and more particularly to a head box having a substrate fixing structure for fixing an electric component (board or the like) that electrically controls the raising and lowering of a curtain.

Conventionally, various parts such as a power supply, a motor, a take-up drum, and a shaft are housed inside a head box used for curtains such as electric blinds, roman shades, and pleated screens that are moved up and down by driving a motor. ing.

A curtain, a louver, or the like is connected to the elevating cord hanging from the head box, and the curtain or louver is raised or rotated together with the elevating cord by driving a motor to raise or lower the curtain or rotate the louver.

Further, in the head box, a head box of a type having an opening at the bottom (hereinafter, this is referred to as a “lower opening type”) (see, for example, Patent Document 1) and a type having an opening at the top (hereinafter, this is referred to as this). There is a headbox (see, for example, Patent Document 2) of the "upper opening type").

In the lower opening type head box, the power supply board and the control board are mounted and accommodated on the ceiling surface inside the head box, and are connected to the motor inside the head box and below the power supply board and the control board. A shaft that is rotatably supported is provided.

In the upper opening type head box, the power supply board and the control board are mounted and accommodated on the floor inside the head box, and are connected to the motor inside the head box and above the power supply board and the control board. A shaft that is rotatably supported is provided.

Japanese Unexamined Patent Publication No. 2016-142000 Japanese Unexamined Patent Publication No. 2005-230289

In such a head box of the lower open type and the upper open type described above, the power supply board and the control board cannot be replaced unless the shaft provided inside is removed due to the arrangement, and the maintainability is inferior. rice field.

The present invention has been made in view of the above problems, and an object of the present invention is to provide a head box having a substrate fixing structure having excellent maintainability.

In order to achieve the above object, the headbox having the substrate fixing structure of the present invention forms a concave space having a U-shaped cross section, and therefore, between two side wall portions arranged to face each other and the two side wall portions. A main body having one arranged wall portion, an engaging portion extending in parallel and facing each other along the longitudinal direction of the side wall portion in the two side wall portions, and an engaging portion fitted into the engaging portion. It is provided with a substrate fixing member which is attached and has a concave groove for sandwiching an end portion of the substrate.

In the present invention, it is preferable that the substrate fixing member is formed with the concave groove having two kinds of widths capable of sandwiching the substrate having two kinds of widths.

In the present invention, it is preferable that the substrate fixing member is formed in a state where the concave grooves having two widths are arranged one above the other.

In the present invention, it is preferable that the substrate fixing member has the concave grooves having two widths formed at one end and the other end of the substrate fixing member, respectively.

In the present invention, it is preferable that the substrate fixing member is formed with the concave groove capable of sandwiching the substrate having a width within a predetermined range at one end or the other end.

According to the present invention, it is possible to realize a head box having a substrate fixing structure that can improve maintainability when exchanging a substrate.

It is a perspective view which shows the whole structure of the head box which has the substrate fixing structure which concerns on 1st Embodiment of this invention. It is a perspective view which shows the arrangement relation of the component housed in the head box which has the substrate fixing structure which concerns on 1st Embodiment of this invention. It is sectional drawing which shows the structure of the headbox body which concerns on 1st Embodiment of this invention. It is sectional drawing and the plan view which show the structure of the substrate holding apparatus in 1st Embodiment. It is a top view which shows the state which the substrate is not held by the substrate holding apparatus in 1st Embodiment. It is sectional drawing which shows the state which the substrate is held by the substrate holding apparatus in 1st Embodiment. It is sectional drawing which shows the state which the substrate holding apparatus was attached to the head box body in 1st Embodiment. 2 is a plan view and a cross-sectional view showing a state in which the substrate is held by the substrate holding device in the second embodiment. 3 is a plan view and a cross-sectional view showing a state in which the substrate is held by the substrate holding device in the third embodiment. It is a top view which shows the state which the substrate is held by the substrate holding apparatus in 4th Embodiment.

<First Embodiment>
Hereinafter, the first embodiment of the present invention will be specifically described with reference to the drawings. FIG. 1 is a perspective view showing the overall configuration of a headbox having a substrate fixing structure according to the first embodiment of the present invention. FIG. 2 is a perspective view showing an arrangement relationship of parts housed inside a head box having a substrate fixing structure according to the first embodiment of the present invention. FIG. 3 is a cross-sectional view showing the configuration of the head box main body according to the first embodiment of the present invention. FIG. 4 is a cross-sectional view and a plan view showing the configuration of the substrate holding device according to the first embodiment. FIG. 5 is a plan view showing a state in which the substrate is not held by the substrate holding device in the first embodiment. FIG. 6 is a cross-sectional view showing a state in which the substrate is held by the substrate holding device in the first embodiment. FIG. 7 is a cross-sectional view showing a state in which the substrate holding device is attached to the head box main body in the first embodiment.

Here, for convenience of explanation, in FIGS. 1 to 3, the longitudinal direction of the head box 1 having the substrate fixing structure is the arrow ab direction, the left side in the drawing toward the lid portion 14 is the arrow a direction, and the head box 1 is directed toward the lid portion 15. The right side in the figure is the direction of arrow b.

Further, the depth direction of the head box 1 is the arrow cd direction, for example, the window side of the interior space is the arrow c direction, and the room side of the interior space is the arrow d direction. Further, the vertical direction of the head box 1 with respect to the floor surface is the arrow ef direction, the upper side, that is, the direction in which the curtain is rolled up is the arrow e direction, and the lower side, that is, the direction in which the curtain is rolled down is the arrow f direction.

<Overall configuration of headbox>
As shown in FIGS. 1 to 3, the headbox 1 having a substrate fixing structure (hereinafter, also simply referred to as “headbox”) 1 has two side wall portions 11 and 12 arranged to face each other and the two. A lower opening type headbox main body 10 having a concave space SP having an inverted U-shaped cross section due to one wall portion 13 (FIG. 3) arranged between the side wall portions 11 and 12, and the length of the headbox main body 10. It is provided with rectangular plate-shaped lids 14 and 15 attached so as to close the concave space SP from both ends in the direction. However, the head box main body 10 is not limited to the lower opening type, but can also be used as the upper opening type.

As shown in FIG. 3, the side wall portions 11 and 12 of the headbox main body 10 have the same configuration as each other and are arranged in parallel with each other so as to be mirrored to form the side wall of the headbox main body 10. ..

The wall portion 13 of the headbox main body 10 is integrally connected to the side wall portions 11 and 12 at the upper end portions of the side wall portions 11 and 12 (in the direction of arrow e) to form the ceiling wall of the headbox main body 10. There is.

Here, the engaging portion 11m for engaging and attaching the substrate fixing member 30, which will be described later, to the lower end (direction of arrow f) on the inner peripheral surfaces 11a and 12a of the side wall portions 11 and 12 facing each other. , 12 m is formed along the longitudinal direction between the lid portions 14 and 15.

The engaging portion 11m and the engaging portion 12m have the same structure and have upper holding pieces 111u and 112u protruding so as to face each other. Further, the engaging portion 11m and the engaging portion 12m are formed below the upper holding pieces 111u and 112u (in the direction of arrow f) and at positions separated from the upper holding pieces 111u and 112u by a predetermined distance from each other. It includes lower holding pieces 111d and 112d that project so as to face each other.

In particular, in the lower holding pieces 111d and 112d, engaging pieces 111dt and 112dt whose tips are bent toward the upper side (direction of arrow e) are formed. These engaging pieces 111dt and 112dt are engaged with the substrate fixing member 30.

As shown in FIGS. 1 and 2, in the concave space SP of the head box main body 10, the take-up drum 21, the power supply board 22, the control board 23, the sensor component 24, and the take-up are in order from the left side (direction of arrow a). A drum 25, a motor 26, and a take-up drum 27 are housed.

The take-up drums 21, 25, and 27 are drums for winding up and down a curtain or the like (not shown), and are arranged at the left and right ends and the center of the head box main body 10. The sensor component 24 contains various sensors for detecting the winding position of the curtain and the like. The motor 26 is a drive source for rotationally driving the take-up drums 21, 25, and 27.

A shaft 28 is penetrating and attached to the motor 26, and is connected to the take-up drums 21, 25, and 27. Incidentally, the parts accommodated in the concave space SP of the head box main body 10 are not limited to these, and various other parts may be further accommodated.

The power supply board 22 and the control board 23 are printed circuit boards having a thin plate-shaped rectangular shape, and various electronic components (not shown) are attached to the upper surfaces (direction of arrow e) of the printed circuit boards 22u and 23u by soldering or the like. Has been done.

Since the power supply board 22 and the control board 23 have the same shape and thickness as the boards, the power supply board 22 will be described below as a target here. The power supply board 22 is a rectangular printed circuit board having a rectangular shape in a plan view, in this case, a rectangular thin plate-shaped printed circuit board. Each is held by one substrate fixing member 30.

The board fixing member 30 is engaged with and attached to the engaging portion 11m of the side wall portion 11 of the head box main body 10 and the engaging portion 12m of the side wall portion 12 (see FIG. 7). That is, the power supply board 22 is attached to the lower end (arrow f direction) of the side wall portions 11 and 12 of the head box main body 10 via the board fixing member 30.

<Board fixing member>
As shown in FIGS. 4A and 4B, the board fixing member 30 is a board fixing structure for fixing the power supply board 22 and the control board 23 to the headbox 1, and is a set of two parts. , Have the same structure as each other.

The substrate fixing member 30 has a base portion 31 having a substantially rectangular shape whose depth direction (arrow cd direction) is the longitudinal direction in a plan view, and an arrow cd direction (head box) which is the longitudinal direction of the base portion 31 and is the depth direction. Both end portions of the main body 10 (in the lateral direction) are provided with engaged portions 33 and 35 engaged with the engaging portions 11m and 12m of the side wall portions 11 and 12.

The engaged portions 33 and 35 have the edges on the back side (arrow c direction) and the front side (arrow d direction) of the base portion 31 from the left end portion (arrow a direction) of the base portion 31 to the right side (arrow b). It is a portion extending toward the end portion in the direction), and is provided integrally with the substrate portion 31.

The engaged portions 33, 35 have lower surfaces 33b, 35b which are lower surfaces (arrow f direction), and project from the lower surfaces 33b, 35b further downward (arrow f direction). The formed engaged protrusions 33p and 35p are provided.

Further, the substrate portion 31 is both end portions in the arrow cd direction (the short side direction in the head box main body 10), which is the longitudinal direction and the depth direction thereof, and is located in a region inside the engaged portions 33 and 35. It has mounting portions 37 and 39 in which insertion holes 31h and 31h are formed, respectively. The mounting portions 37 and 39 are only a part of the base portion 31.

The mounting portions 37 and 39 have a plate-shaped square nut 32 having insertion holes 31h and 31h made of through holes and screwing with a male screw B1 (see FIG. 7) inserted through the insertion holes 31h and 31h. It has inside it.

Therefore, in a state where the substrate fixing member 30 is engaged with the engaging portions 11m and 12m of the side wall portions 11 and 12, the lower holding pieces 111d of the engaging portions 11m and 12m are provided by the male screw B1 and the square nut 32. And 112d are sandwiched and attached to the side wall portions 11 and 12.

Further, as shown in FIGS. 4 (A) and 4 (B), in the base portion 31, the right side (direction of arrow b) opposite to the left end (direction of arrow a) on which the mounting portions 37 and 39 are formed. At the end of the above, protrusions 41 and 43, which are rectangular portions protruding to the right side (direction of arrow b), are provided.

The protrusions 41 and 43 are formed with notched portions 41c and 43c having concave grooves facing each other, and the concave grooves of the notched portions 41c and 43c are formed on one end side or the other end side of the power supply board 22. The ends (corners) of the are engaged and sandwiched.

That is, the width w1 in the depth direction (arrow cd direction) in the recesses of the notches 41c and 43c is slightly larger than the width w2 in the lateral direction of the power supply board 22, and is in the recesses of the notches 41c and 43c. The height h1 in the vertical direction (arrow ef direction) is slightly larger than the height (thickness) h2 of the power supply board 22.

<Operation and effect>
In the above configuration, as shown in FIG. 5, in the power supply board 22, the two board fixing members 30 engaged with the engaging portions 11m and 12m of the side wall portions 11 and 12 in the headbox main body 10 face each other. It is placed in the center of.

As shown in FIG. 6, one end and the other end of the power supply board 22 are formed in the concave grooves of the notches 41c and 43c formed in the protrusions 41 and 43 of the two board fixing members 30. Engaged.

That is, the two board fixing members 30 hold the end portions of the power supply board 22 on one end side and the other end side in a state of being inserted into the concave grooves of the notched portions 41c and 43c of the protrusions 41 and 43 (FIG. 6). ..

As shown in FIGS. 3 and 7, when the power supply board 22 is held by the two board fixing members 30, the engaged portions 33 and 35 in the board fixing member 30 are the side wall portions 12 of the head box main body 10. It is engaged with the engaging portion 12m of the side wall portion 11 and the engaging portion 11m of the side wall portion 11.

Specifically, the engaged portions 33 and 35 come into contact with the upper holding pieces 112u and 111u of the engaged portion 12m and the engaging portion 11m, and the engaged projections 33p and 35p of the engaged portions 33 and 35. Is engaged with the engaging pieces 112dt and 111dt of the lower holding pieces 112d and 111d.

After that, the board fixing member 30 is mounted and fixed by the square nuts 32 of the mounting portions 37 and 39 and the male screw B1 in a state where the substrate fixing member 30 is positioned at an arbitrary position in the longitudinal direction of the side wall portions 11 and 12 of the head box main body 10. Will be done.

That is, in the side wall portions 11 and 12 of the head box main body 10, the substrate fixing member 30 is arbitrary in the longitudinal direction (arrow ab direction) of the side wall portions 11 and 12 by the square nuts 32 of the mounting portions 37 and 39 and the male screw B1. It can be installed at the position of. That is, the substrate fixing member 30 and the engaging portions 11m and 12m of the side wall portions 11 and 12 form a substrate fixing structure for fixing the power supply board 22 to the headbox main body 10.

At this time, the power supply board 22 is attached via the board fixing member 30 with the surface (mounting surface) 22u of the electronic component facing the concave space SP of the head box main body 10. As a result, the head box 1 prevents the electronic components of the power supply board 22 from being exposed from the head box main body 10, and exposes only the surface 22d (see FIG. 1) on which the electronic components of the power supply board 22 are not mounted. The power supply board 22 can have the role of a lid for the concave space SP.

Further, the head box 1 uses the power supply board 22 as a substitute for the cover for the concave space SP of the head box main body 10 via the board fixing member 30. Therefore, in the head box 1, when the power supply board 22 is replaced or repaired, the shaft 28 of the motor 26 housed inside the concave space SP does not need to be removed and can be easily removed, as compared with the conventional case. It is possible to significantly improve maintainability.

<Second embodiment>
As shown in FIGS. 8A and 8B in which the corresponding portions corresponding to FIGS. 4A and 4B are designated by the same reference numerals, the substrate fixing member 50 in the second embodiment is the substrate fixing member 30. The base portion 51 having almost the same overall configuration as the base portion 31 of the above, and the engagement portions 11m of the side wall portions 11 and 12 provided at both end portions in the depth direction (arrow cd direction) which is the longitudinal direction of the base portion 51. , Equipped with engaged portions 33 and 35 engaged to 12 m. Since the engaged portions 33 and 35 have the same structure as the substrate fixing member 30 in the first embodiment, the description thereof is omitted here.

Further, the substrate portion 51 is attached at both end portions in the depth direction (arrow cd direction), which is the longitudinal direction, and the insertion holes 31h and 31h are formed in the regions inside the engaged portions 33 and 35, respectively. It has parts 37 and 39. Since these mounting portions 37 and 39 also have the same structure as the substrate fixing member 30 in the first embodiment, the description thereof will be omitted here.

Further, in the substrate portion 51, the end portion on the right side (direction arrow b) opposite to the end portion on the left side (direction arrow a) on which the mounting portions 37 and 39 are formed is further to the right side (direction arrow b). It is provided with protruding rectangular protrusions 63, 65.

Notched portions 63c and 65c having first concave grooves facing each other are formed in the protruding portions 63 and 65, and are above the notched portions 63c and 65c by a predetermined distance (direction of arrow e). ), The cutout portions 63k and 65k having second concave grooves (width of the second concave groove> width of the first concave groove) facing each other are formed at positions separated from each other.

The width of the notch portions 63c and 65c in the depth direction (arrow cd direction) with respect to the first concave groove is slightly larger than the width in the lateral direction of the power supply board 22a corresponding to the first size, and the notch portion. The height in the vertical direction (arrow ef direction) with respect to the first concave groove by 63c and 65c is slightly larger than the height of the power supply board 22a.

Further, the width in the depth direction (arrow cd direction) with respect to the second concave groove due to the cutout portions 63k and 65k is slightly larger than the width in the lateral direction of the other power supply board 22b corresponding to the second size. Moreover, the height in the vertical direction (arrow ef direction) with respect to the second concave groove due to the cutout portions 63k and 65k is slightly larger than the height of the power supply board 22b.

In the substrate portion 51, the power supply board 22b corresponding to the second size can be sandwiched above the first concave groove (direction of arrow e) where the power supply board 22a corresponding to the first size can be sandwiched. A second concave groove is arranged, and it is possible to simultaneously hold two types of substrates having different widths in the vertical direction.

In this case, in the headbox main body 10, the board fixing member 50 is attached so that the electronic component mounting surface of the power supply board 22a and the electronic component mounting surface of the power supply board 22b face each other so that the lid for the concave space SP can be attached. The role can be given to the power supply boards 22a and 22b, and the electronic components can be made difficult to be exposed to dust and the like.

Further, since the power supply boards 22a and 22b are used as a substitute for the lid for the concave space SP of the head box main body 10 via the board fixing member 50, the concave space SP is used when the power supply boards 22a and 22b are replaced or repaired. It is not necessary to remove the shaft 28 of the motor 26 in which the motor 26 is housed, and the maintainability can be significantly improved as compared with the conventional case.

<Third embodiment>
As shown in FIG. 9 in which the corresponding portions corresponding to FIGS. 4A and 4B are designated by the same reference numerals, the substrate fixing member 70 according to the third embodiment has a substrate portion 71 having a substantially I-shaped plan view. At both end portions in the depth direction (arrow cd direction), which is the longitudinal direction of the substrate portion 71, the engaged portions 33 and 35 engaged with the engaging portions 11m and 12m of the side wall portions 11 and 12 are provided. ing. Since the engaged portions 33 and 35 have the same structure as the substrate fixing member 30 in the first embodiment, the description thereof is omitted here.

Further, the substrate portion 71 is both end portions in the arrow cd direction (the short side direction in the head box main body 10), which is the longitudinal direction and the depth direction thereof, and is located in a region inside the engaged portions 33 and 35. It has mounting portions 37 and 39 in which insertion holes 31h and 31h are formed, respectively. The mounting portions 37 and 39 have a square nut 32 screwed into the male screw B1 (see FIG. 7) inserted through the insertion holes 31h and 31h.

At the end of the base portion 71 on the back side (arrow c direction) and the front side (arrow d direction), rectangular protrusions 72 and 73 protruding to the left side (arrow a direction) and the right side (arrow b direction). It is provided with rectangular protrusions 76, 77 that protrude to.

Notched portions 72c and 73c having first concave grooves facing each other are formed in the protruding portions 72 and 73, and the power supply board 22a is formed in the first concave grooves formed by the notched portions 72c and 73c. The ends (corners) on one end side or the other end side are engaged with each other and sandwiched.

That is, the width in the depth direction (arrow cd direction) in the first concave groove formed by the notched portions 72c and 73c is slightly larger than the width in the lateral direction of the power supply board 22a, and the first concave groove formed by the notched portions 72c and 73c. The height in the vertical direction (arrow ef direction) in the concave groove is slightly larger than the height (thickness) of the power supply board 22a.

The protrusions 76 and 77 are formed with cutout portions 76c and 76c having second concave grooves facing each other, and the power supply board 22b is formed in the second concave grooves formed by the cutout portions 76c and 77c. The ends on one end side or the other end side are engaged with each other and sandwiched.

That is, the width in the depth direction (arrow cd direction) in the second concave groove formed by the notched portions 76c and 76c is slightly larger than the width in the lateral direction of the power supply board 22b, and the second recess formed by the notched portions 76c and 77c. The height in the vertical direction (arrow ef direction) in the concave groove is slightly larger than the height (thickness) of the power supply board 22b. Here, the power supply board 22b is larger than the power supply board 22a in its width and thickness.

That is, the substrate fixing member 70 can hold the power supply board 22b by the protrusions 76 and 77 on the left side of the base portion 71 (direction of arrow a), and the protrusion 72 on the right side of the base portion 71 (direction of arrow b). , 73 can hold the power supply board 22a.

In this case, when the substrate fixing member 70 simultaneously holds the power supply boards 22a and the power supply boards 22b having different widths on the left and right sides of the base portion 71, one board fixing member 70 can be used for both the left and right sides. , Space can be saved when it is attached to the head box main body 10.

<Fourth Embodiment>
As shown in FIG. 10 in which the corresponding portions corresponding to FIGS. 4A and 4B are designated by the same reference numerals, the substrate fixing member 90 in the fourth embodiment includes a substrate portion 91 having a rectangular shape in a plan view and a substrate portion 91. Both end portions in the depth direction (arrow cd direction), which is the longitudinal direction of the base portion 91, are provided with engaged portions 33 and 35 engaged with the engaging portions 11m and 12m of the side wall portions 11 and 12. .. The engaged portions 33 and 35 have the same structure as the substrate fixing member 30 in the first embodiment.

Further, the substrate portions 91 are engaged on both sides of the arrow cd direction (the short side direction in the head box main body 10) which is the longitudinal direction and the depth direction thereof, and are engaged with the ends on the left side (arrow a direction). It has mounting portions 37 and 39 in which insertion holes 31h and 31h are formed in regions inside the portions 33 and 35, respectively.

An opening recess 92 recessed in a polygonal shape (in this case, a pentagonal shape) from the surface 91a of the substrate portion 91 is formed in the central portion of the end portion on the right side (direction of arrow b) of the substrate portion 91. A concave groove 93 having a similar shape is formed around the above. The concave groove 93 is a concave space formed by cutting out the base portion 91 from the opening concave portion 92.

The concave groove 93 has a front wall portion 93a parallel to the depth direction (arrow cd direction), side wall portions 93b and 93c parallel to each other along the left-right direction (arrow ab direction), and a front wall portion 93a and a side wall portion. It is defined by slope wall portions 93d and 93e that diagonally connect 93b and 93c.

The front wall portion 93a has the same length as the power supply board 22xmin having the minimum width (Min) in the depth direction (arrow cd direction). The distance between the side wall portion 93b and the side wall portion 93c is the same length as the power supply board 22xmax at which the width in the depth direction (arrow cd direction) is maximum (Max).

The slope wall portions 93d and 93e are formed at the same angle and the same length so as to be symmetrical with respect to the center line Z along the left-right direction (arrow ab direction) of the base portion 91 and the power supply substrate 22x.

Therefore, in the substrate fixing member 90, if the width in the depth direction (arrow cd direction) is in the range from the minimum (Min) to the maximum (Max) from the power supply board 22xmin to the power supply board 22xmax, the groove 93 of the base portion 91 is formed. It can be inserted.

In this case, when the power supply board 22x is inserted, one or the other end (corner portion) of the power supply board 22x collides with the slope wall portions 93d and 93e defining the concave groove 93, so that the power supply board is automatically used. 22x is positioned at the center position about the center line z.

As described above, the substrate fixing member 90 in the fourth embodiment holds the power supply board 22xmin to the power supply board 22xmax in the range from the minimum (Min) to the maximum (Max) in the width in the depth direction (arrow cd direction). In addition to being able to do so, it is highly convenient because it is automatically centered so as to be arranged in the center of the substrate portion 91.

<Other embodiments>
In the first to fourth embodiments described above, one end and the other end of the power supply board 22 in the left-right direction (arrow ab direction) are sandwiched by the board fixing members 30, 50, 70, 90. The case where it was made to hold by doing was described. However, the present invention is not limited to this, and one end portion and the other end portion in the depth direction (arrow cd direction) of the power supply board 22 are held by being sandwiched by the board fixing members 30, 50, 70, 90. You may do it.

Further, in the second embodiment described above, notches 63c and 65c having the first concave groove are formed at the right end (direction of arrow b) of the substrate portion 51, and the second concave portion is formed. The case where the power supply boards 22 having two different widths can be sandwiched by forming the notched portions 63k and 65k having grooves has been described. However, the present invention is not limited to this, and the notch portions 63c and 65c having the first concave groove and the notch portions 63k having the second concave groove also on the left end (direction of arrow a) of the substrate portion 51. 65k may be formed.

Further, in the second embodiment described above, the first concave groove and the second concave groove are formed so as to be vertically arranged at the right end (direction of arrow b) of the substrate portion 51. I mentioned the case. However, the present invention is not limited to this, and three layers are formed on both the left side (arrow a direction) end portion of the substrate portion 51, or the left side (arrow a direction) end portion and the right side (arrow b direction) end portion. The above concave grooves may be formed so as to be arranged vertically.

Further, in the fourth embodiment described above, the case where the concave groove 93 is formed around the opening concave portion 92 on the right side (direction of arrow b) in the substrate portion 91 has been described. However, the present invention is not limited to this, and only the concave groove 93 may be formed without providing the opening recess 92.

Further, in the fourth embodiment described above, the case where the opening recess 92 and the concave groove 93 are formed at the right end (direction of arrow b) of the substrate portion 91 has been described. However, the present invention is not limited to this, and the opening recesses are formed in both the left side (arrow a direction) end of the substrate portion 91, or the left side (arrow a direction) end portion and the right side (arrow b direction) end portion. 92 and the groove 93 may be formed.

Further, in the fourth embodiment described above, the case where the concave groove 93 is formed around the opening concave portion 92 on the right side (direction of arrow b) in the substrate portion 91 has been described. However, the present invention is not limited to this, and two types of concave grooves corresponding to at least two different widths may be formed so as to be arranged vertically without providing the opening recess 92.

Although the preferred embodiments of the present invention have been described above, the present invention is not limited to the above embodiments, and includes all aspects included in the concept of the present invention and the scope of claims. In addition, each configuration may be selectively combined as appropriate so as to achieve at least a part of the above-mentioned problems and effects. For example, the shape, material, arrangement, size, etc. of each component in the above embodiment can be appropriately changed depending on the specific usage mode of the present invention.

1 ... Headbox, 10 ... Headbox body, 11, 12 ... Side wall, 11m, 12m ... Engaging part, 111u, 112u ... Upper holding piece, 111d, 112d ... Lower holding piece, 111dt , 112dt ... Engagement piece, 13 ... Wall part, 14, 15 ... Lid part, 30, 50, 70, 90 ... Board fixing member, 21, 25, 27 ... Winding drum, 22, 22a, 22b, 22x ... Power supply board, 23 ... Control board, 24 ... Sensor parts, 26 ... Motor, 28 ... Shaft, 31, 51, 71, 91 ... Base part, 32 ... Square nut, 33, 35 ... engaged part, 33p, 35p ... engaged protrusion, 37, 39 ... mounting part, 41, 43, 63, 65, 72, 73, 76, 77 ... protruding part, 41c, 43c, 63c, 65c, 63k, 65k, 72c, 73c, 76c, 77c ... notch, 92 ... opening recess, 93 ... concave groove, SP ... concave space.

Claims (4)

A main body having two side wall portions arranged to face each other and one wall portion arranged between the two side wall portions in order to form a concave space having a U-shaped cross section.
In the two side wall portions, an engaging portion extending in parallel and facing each other along the longitudinal direction of the side wall portion, and an engaging portion extending respectively.
It is provided with a substrate fixing member which is fitted and attached to the engaging portion and has a concave groove for sandwiching an end portion of the substrate .
A head box in which the concave groove having two widths capable of sandwiching the substrate having two widths is formed in the substrate fixing member . The head box according to claim 1 , wherein the substrate fixing member is formed in a state where the concave grooves having two widths are arranged one above the other. The head box according to claim 1 , wherein the substrate fixing member has the concave grooves having two widths formed at one end and the other end of the substrate fixing member, respectively. The headbox according to claim 1, wherein the substrate fixing member is formed with a concave groove capable of sandwiching the substrate having a width within a predetermined range at one end or the other end.

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