JP2004322131A - Protrusion member, and method and apparatus for manufacturing protrusion member - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide protrusion members which prevent warping of a sheet-shaped member, are not particularly restricted in length and permit formation of a plurality of the protrusion members in positions proximate to each other, and to provide a method for manufacturing the protrusion members and an apparatus for manufacturing the protrusion members. <P>SOLUTION: The protrusion members 30 are formed integrally with a sheet-shaped members 20 by protruding from the sheet-shaped members 20. The protrusion members 30 are formed so that sections of the plurality of the formed members has bent profiles by subjecting the plurality of the members formed by subjecting the sheet-shaped member 20 to outside profile blanking, to bending, and the plurality of formed members are subjected to bending and raising from the sheet-shaped member 20. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a projecting member projecting from a plate-shaped member and integrally formed with the plate-shaped member, a method of manufacturing the projecting member, and an apparatus for manufacturing the projecting member.
[0002]
[Prior art]
This type of projection member is provided on various devices. An example of the device is a printer. The printer has a printer main body and a frame arranged inside the printer main body. The frame is made by molding a metal plate. The frame needs to be equipped with gears for operating various mechanical parts of the printer, for example. Further, the frame needs to be fixed to the printer body.
For this reason, the frame is provided with a shaft for mounting and rotating a gear or a shaft for fixing the frame to the printer body. Such shafts are formed so as to project integrally with the frame, and these shafts are examples of a protruding member.
2. Description of the Related Art As a gear, there is a gear mounted on a columnar shaft obtained by squeezing and forming a plate-shaped metal member (for example, Patent Document 1).
[0003]
[Patent Document 1]
JP 2000-136867 A (page 1, FIG. 1)
[0004]
[Problems to be solved by the invention]
However, since the shaft is formed so as to protrude in a cylindrical shape by squeezing and forming a metal plate as described above, there are the following problems.
When the shaft is formed by squeezing and shaping, the frame of the metal plate is warped, and an accurate frame shape cannot be maintained. Further, there is a limit to the length of the shaft that can be formed, that is, the length of squeezing and shaping of the shaft, and it is not possible to increase the length of the shaft as necessary.
In addition, it is impossible to project a plurality of shafts close to each other on the frame.
Therefore, the present invention solves the above-described problems, prevents warpage of a plate-shaped member, and has no particular restriction on the length, and a plurality of protrusion members that can be formed at close positions, a method of manufacturing a protrusion member, and It is an object of the present invention to provide an apparatus for manufacturing a projection member.
[0005]
[Means for Solving the Problems]
According to the first invention, a plurality of protrusion members projecting from the plate-shaped member and formed integrally with the plate-shaped member, and formed by performing outer shape cutting on the plate-shaped member. By bending the forming member, the cross section of the plurality of forming members has a bent shape, and the plurality of forming members are formed by bending and raising the plate-shaped member. This is a characteristic projection member.
[0006]
According to the above configuration, a plurality of formed members are formed by performing an outer shape punch on the plate-shaped member. By performing arc bending to the plurality of forming members, the cross section of the plurality of forming members has a bent shape. The plurality of forming members are formed on the protruding member by bending and raising the plate-shaped member.
Accordingly, when forming the protruding member, since the outer shape is removed, deformation such as warpage does not occur in the plate member, so that the shape accuracy of the plate member can be maintained. Since the plurality of forming members are formed by performing an outer shape punching on a plate-shaped member, there is no particular limit or restriction on the length of the formed protruding member unlike the case of the conventional diaphragm.
[0007]
Since the plurality of forming members are formed by performing an outer shape removal on the plate-shaped member, unlike the case of the conventional diaphragm, the plurality of projecting members are easily formed at close positions in the plate-shaped member. can do. The projection member first obtains a plurality of formed members by removing the outer shape from a plate-shaped member. The cross sections of the plurality of forming members have a bent shape, and the plurality of forming members are formed by bending and raising a plate-like member, so that the protruding member can be easily formed, and the cost can be reduced.
[0008]
According to a second aspect, in the configuration of the first aspect, the plurality of forming members are a first forming member and a second forming member, and the first forming member and the second forming member approach each other from opposite directions. It is characterized by being bent up from the plate-shaped member in the direction.
According to the above configuration, the plurality of forming members are the first forming member and the second forming member. The first forming member and the second forming member can be easily formed into a predetermined shape by bending and raising the plate-shaped member in a direction approaching each other from opposite directions.
[0009]
A third invention is characterized in that, in the first invention or the second invention, a cylindrical shaft for mounting a mounting object is provided.
According to the above configuration, the projection member is the most available cylindrical shaft for mounting the mounting target.
[0010]
A fourth invention is a method of manufacturing a projecting member that projects from a plate-shaped member and is formed integrally with the plate-shaped member. An outer shape removing step for forming a forming member, a bending step of bending the plurality of forming members to form a cross section of the plurality of forming members into a bent shape, and forming the plurality of forming members into a plate shape. And forming a projection member by bending and raising the member.
[0011]
According to the above configuration, in the outer shape removing step, a plurality of forming members are formed by extracting the outer shape from the plate-shaped member. In the bending step, a plurality of forming members are bent to form a cross section of the plurality of forming members into a bent shape. In the bending and raising step, a plurality of forming members are bent and raised from a plate-like member to form a projecting member.
Accordingly, when forming the protruding member, since the outer shape is removed, deformation such as warpage does not occur in the plate member, so that the shape accuracy of the plate member can be maintained. Since the plurality of forming members are formed by performing an outer shape punching on a plate-shaped member, there is no particular limit or restriction on the length of the formed protruding member unlike the case of the conventional diaphragm.
[0012]
Since the plurality of forming members are formed by performing an outer shape removal on the plate-shaped member, unlike the case of the conventional diaphragm, the plurality of projecting members are easily formed at close positions in the plate-shaped member. can do. The projection member first obtains a plurality of formed members by removing the outer shape from a plate-shaped member. The cross sections of the plurality of forming members have a bent shape, and the plurality of forming members are formed by bending and raising a plate-like member, so that the protruding member can be easily formed, and the cost can be reduced.
[0013]
In a fifth aspect based on the configuration of the fourth aspect, the plurality of forming members are a first forming member and a second forming member, and the first forming member and the second forming member approach each other from opposite directions. It is characterized by being bent up from the plate-shaped member in the direction.
According to the above configuration, the plurality of forming members are the first forming member and the second forming member. The first forming member and the second forming member can be easily formed into a predetermined shape by bending and raising the plate-shaped member in a direction approaching each other from opposite directions.
[0014]
In a sixth aspect based on the configuration of the fourth aspect, in the outer shape removing step, when the outer shape is formed to form the plurality of members, the plurality of members are fixed to each other. Forming a fixing portion, further comprising, between the outer shape removing step and the bending step, a fixing portion bending step of previously bending the fixing portions of the plurality of forming members, and after the bending and raising step, the protrusion member And pressing the fixing portions of the plurality of forming members to fix the plurality of forming members to each other.
[0015]
According to the above configuration, in the outer shape removing step, when forming the plurality of forming members by removing the outer shape, a fixing portion for fixing the plurality of forming members to each other is formed in the plurality of forming members.
Further, an ironing step and a fixing part bending step are performed. In the fixing part bending step, the fixing parts of the plurality of forming members are bent in advance between the outer shape removing step and the bending step. In the ironing step, after the bending and erecting step, the outer shape of the protruding member is flattened and the fixing portions of the plurality of external members are pressed to fix the plurality of forming members to each other.
Thereby, the plurality of forming members can be securely fixed to each other by the fixing portion, so that the shape accuracy of the outer shape of the obtained protrusion member can be improved, and the change in the outer shape of the protrusion member can be prevented. be able to.
[0016]
A seventh invention is characterized in that in any one of the fourth to sixth inventions, the shaft is a cylindrical shaft for mounting a mounting object.
According to the above configuration, the projection member is the most available cylindrical shaft for mounting the mounting target.
[0017]
An eighth invention is an apparatus for manufacturing a projecting member projecting from a plate-shaped member and integrally formed with the plate-shaped member. An outer shape removal processing unit for forming a forming member, a bending processing unit configured to bend the plurality of forming members to form a cross section of the plurality of forming members into a bent shape; and An apparatus for manufacturing a projection member, comprising: a bending member that forms a projection member by performing bending and bending from a shape-like member.
[0018]
In the above configuration, the outer shape removal processing unit forms a plurality of formed members by removing the outer shape from the plate-shaped member. The bending processing unit bends the plurality of processing members to form a cross section of the plurality of forming members into a bent shape.
The bending and raising processing section forms a projecting member by bending and raising a plurality of forming members from a plate-like member.
Accordingly, when forming the protruding member, since the outer shape is removed, deformation such as warpage does not occur in the plate member, so that the shape accuracy of the plate member can be maintained. Since the plurality of forming members are formed by performing an outer shape punching on a plate-shaped member, there is no particular limit or restriction on the length of the formed protruding member unlike the case of the conventional diaphragm.
[0019]
Since the plurality of forming members are formed by performing an outer shape punching on the plate-shaped member, unlike the case of the conventional diaphragm, the plurality of protrusion members are easily formed at close positions in the plate-shaped member. can do. The projection member first obtains a plurality of formed members by removing the outer shape from a plate-shaped member. The cross sections of the plurality of forming members have a bent shape, and the plurality of forming members are formed by bending and raising a plate-like member, so that the protruding member can be easily formed, and the cost can be reduced.
[0020]
In a ninth aspect based on the configuration of the eighth aspect, the outer shape removal processing unit attaches the plurality of formed members to the plurality of formed members when forming the plurality of formed members by extracting the outer shape. Forming a fixing portion for fixing, and further bending the fixing portions of the plurality of forming members in advance between the outer shape removing process by the outer shape removing portion and the bending process by the bending portion; A processing unit and, after the bending and raising, while ironing and trimming the outer shape of the projection member, an ironing processing unit that presses the fixing unit of the plurality of forming members and fixes the plurality of forming members together, It is characterized by having.
[0021]
In the above configuration, in the outer shape removal processing, when forming the plurality of forming members by removing the outer shape, a fixing portion for fixing the plurality of forming members to each other is formed in the plurality of forming members.
The fixed-portion bending section bends the bottoms of the plurality of forming members in advance between the outer shape removal processing by the outer shape removal processing section and the bending processing by the bending processing section.
After the bending and erecting, the ironing treatment section flattens the outer shape of the projection member and presses the fixing portions of the plurality of forming members to fix the plurality of forming members to each other.
Thereby, the plurality of forming members can be securely fixed to each other by the fixing portion, so that the shape accuracy of the outer shape of the obtained protrusion member can be improved, and the change in the outer shape of the protrusion member can be prevented. be able to.
[0022]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, a preferred embodiment of the present invention will be described with reference to the drawings.
First embodiment
FIG. 1 shows an example of a device provided with a preferred embodiment of a plate-shaped member provided with a projection member of the present invention.
The device shown in FIG. 1 is a printer. A printer 10 shown in FIG. 1 shows a printer body 1, a plate-shaped member 20 also called a frame plate, and the like. In FIG. 1, other components of the printer 10 are not shown for simplification of the drawing.
The printer 10 is, for example, an ink jet recording apparatus, and is a printer that can perform color printing or black and white printing by ejecting various kinds of ink of black, yellow, magenta, and cyan.
[0023]
The plate-shaped member 20 is also called a frame plate as described above, but the plate-shaped member 20 is a member arranged inside the printer main body 1. The plate-shaped member 20 has a plurality of shafts 30 formed using the projection member manufacturing apparatus of the present invention. These shafts 30 are formed to protrude from the plate-like member 20 in a relatively close state. Each shaft 30 is, for example, a cylindrical member, and each shaft 30 is a preferred embodiment of the projection member of the present invention.
[0024]
FIG. 2 shows a further enlarged structure of the shaft 30 of the plate-shaped member 20 of FIG.
The plate-shaped member 20 has the plurality of shafts 30 described above. For example, gears 31, 32, and 33 are mounted on each shaft 30, respectively. Each gear 31, 32, 33 can be rotatably supported on a respective shaft 30. The gears 31, 32, and 33 are examples of a mounting target mounted on the shaft 30. The gears 31, 32, and 33 are gears used for transmitting a driving force when rotating a rotary driving body such as a platen for feeding printing paper in the printer 10 of FIG.
However, the present invention is not limited to this, and the gear mounted on the shaft can of course be used to transmit a driving force for operating other parts, for example.
[0025]
FIG. 3 is a perspective view showing a part of the plate-like member 20 shown in FIG. 2 and one shaft 30 and its peripheral part as an example.
FIG. 4 is a side view of the plate-like member 20 and the shaft 30 in FIG. 3 viewed from the direction E. FIG. 5 is a plan view of the plate-like member 20 and the shaft 30 in FIG. FIG. 6 is a side view of the plate-shaped member 20 and the shaft 30 viewed from the direction G in FIG. The shape of each shaft 30 and its periphery shown in FIG. 2 is the same as the shape of the shaft 30 and its periphery shown in FIG.
[0026]
With reference to FIGS. 3 to 6, the structure of the plate-shaped member 20, the shaft 30, and its peripheral portion will be described.
The plate-shaped member 20 is a metal material that can be plastically deformed. For example, a metal plate such as iron, stainless steel, aluminum, a magnesium alloy, or brass can be used.
[0027]
As shown in FIG. 4, the axial direction CL of the shaft 30 is a cylindrical member that is formed to be perpendicular to the plate-like member 20 at an angle θ. The shaft 30 is an example of the projecting member of the present invention. The shape of the shaft 30 is cylindrical as shown in FIG. 5, and the cross-sectional shape is circular.
The shaft 30 is formed by bringing the first forming member 41 and the second forming member 42 into close contact with each other as shown in FIGS. The first forming member 41 and the second forming member 42 each have a symmetrical shape, and their cross sections have a semicircular shape. That is, the first forming member 41 and the second forming member 42 are each subjected to the arc bending forming process, and each have a semi-arc shape.
[0028]
The plate-like member 20 shown in FIGS. 3 and 5 has two externally cutout grooves 51 and 52 near the shaft 30. The outer shape removing groove 51 is a groove provided when the first forming member 41 is formed by removing the outer shape. Similarly, the outer shape removal groove 52 is a groove formed when the second forming member 42 is formed by the outer shape removal.
The outer shape removing groove 51 and the outer shape removing groove 52 are arranged in series along the arrangement line 43 of the outer shape removing groove shown in FIG. The shaft 30 is formed upright at the center between the outer shape removing groove 51 and the outer shape removing groove 52. The arrangement line 43 is perpendicular to the axial direction CL of the shaft 30.
Referring to FIG. 2, a plurality of adjacent shafts 30 are respectively located at the centers of the outer shape removing grooves 51 and 52, and are formed upright.
[0029]
FIG. 7 shows an example of a method of manufacturing the shaft 30 and an apparatus for manufacturing the shaft 30 shown in FIGS.
FIG. 7A shows an apparatus 100 for manufacturing a projection member, and FIG. 7B shows an example of the flow of a method 60 for manufacturing a projection member.
The method 60 for manufacturing a projection member shown in FIG. 7B has an outer shape removing step ST1, a bending step ST2, and a bending raising step ST3.
[0030]
The projection member manufacturing apparatus 100 shown in FIG. 7A includes an outer shape removing section 101 for performing the outer shape removing step ST1, a bending section 102 for performing the bending step ST2, and bending for performing the bending and raising step ST3. It has a wake-up processing unit 103.
7A, the outer shape removal processing unit 101, the bending processing unit 102, and the bending raising processing unit 103 of the projection member manufacturing apparatus 100 are dies each including a punch and a die.
The outline removal processing unit 101 includes a punch 110 and a die 111. The bending section 102 includes a punch 120 and a die 121. The bending / raising processing unit 103 includes a punch 130 and a die 131.
[0031]
Outline removal process ST1
The outline removing step ST1 shown in FIG. 7B will be described. The outer shape removing step ST1 is shown in FIGS.
In the outer shape removing step ST1, the outer shape removing unit 101 shown in FIGS. 8 and 7A is used. The outline removal processing unit 101 uses a punch 110 and a die 111. On the mounting surface of the die 111, a plate-shaped member 20 is detachably mounted.
[0032]
When the punch 110 is pushed down in the P direction with respect to the plate-shaped member 20 by an actuator (not shown), the outer shape cutout grooves 51 and 52 as shown in FIGS. 9 and 10 are formed in the plate-shaped member 20. The outer shape removing grooves 51 and 52 formed in the plate-shaped member 20 are symmetrical with respect to the center line 59 and the arrangement line 51 in FIG.
In the example of FIG. 10, the outer shape removing groove 51 has three straight portions 51A, 51B, 51C and two inclined portions 51D, 51E. The straight portions 51A and 51B are parallel, and the straight portion 51C connects one end of each of the straight portions 51A and 51B. The straight portions 51A and 51B are parallel to the arrangement line 43, while the straight portion 51C is parallel to the center line 59. The inclined portions 51D and 51E are inclined in a direction approaching each other and are further tapered.
Similarly, the outer shape removing groove 52 also has linear portions 52A, 52B, 52C and inclined portions 52D, 52E.
[0033]
The punch 110 shown in FIG. 8 is a punch capable of forming such externally-shaped outer grooves 51 and 52.
As shown in FIGS. 9 and 10, the first forming member 41 and the second forming member 42 of the plate-shaped member 20 are connected in a cantilever manner by a connecting portion 51F and a connecting portion 52F. The connection portions 51F and 52F are located at symmetric positions with respect to the center line 59.
[0034]
Bending process ST2
The bending step ST2 shown in FIG. 7B is shown in FIGS.
This bending step ST2 is also called an arc bending step in this embodiment. In the bending step ST2, the bending processing unit 102 shown in FIGS. 11 to 13 and FIG. 7A is used. The bending section 102 uses a punch 120 and a die 121.
[0035]
The first forming member 41 and the second forming member 42 shown in FIG. 10 are located between the die 121 and the punch 120 of the bending section 102 shown in FIGS. When the punch 120 shown in FIGS. 12 and 13 is pushed in the R direction by an actuator (not shown), the punch 120 and the die 121 move the first forming member 41 and the second forming member 42 from FIGS. As shown in FIG. 13, the arc-shaped bent portions 200 and 201 are formed by bending.
[0036]
FIGS. 14 to 16 show examples of the shapes of the arc-shaped bent portions 200 and 201 formed on the first forming member 41 and the second forming member 42. As a result, the first forming member 41 and the second forming member 42 have semicircular arc-shaped bent portions 200 and 201, respectively, when viewed in cross section. In this case, the radii of curvature of the arc bending portions 200 and 201 are the same.
As shown in FIG. 12, the punch 120 has an arc-shaped pressing inner peripheral portion 120A in order to form the arc bent portions 200 and 201. On the other hand, the die 121 has a pressing outer peripheral portion 121A. The radius of the pressing outer peripheral portion 121A of the die 121 is set smaller than the radius of the pressing inner peripheral portion 120A.
[0037]
Bending process ST3
Next, the bending and raising step ST3 of FIG. 7B will be described.
The bending / raising process ST3 is performed using the bending / raising processing unit 103 shown in FIGS. 17 and 7A. The bending and raising processing unit 103 uses a punch 130 and a die 131. The die 131 has a cylindrical shape.
[0038]
The punch 130 is pushed by the actuator (not shown) along the T direction in the outer shape removing groove 51 and the outer shape removing groove 52 of the plate-shaped member 20, so that the punch 130 uses the die 131 to form the first forming member 41. And the second forming member 42 is bent from the plate-shaped member 20 in the directions of H1 and H2 shown in FIG.
The H1 direction and the H2 direction are directions facing each other, and the first forming member 41 and the second forming member 42 are bent and raised from the plate-shaped member 20 and are in close contact with each other. Thus, the shaft 30, which is a cylindrical projection member, can be formed. The completed shaft 30 and its surroundings are shown in FIGS.
[0039]
Second embodiment
Next, a second embodiment of the present invention will be described.
The shaft 30 according to the second embodiment of the projection member of the present invention is formed on the plate-like member 20 of the printer 10 shown in FIGS. 1 and 2, and the shape of the shaft 30 is shown in FIGS.
This shaft 30 is different from the shaft 30 in FIG. 3 in that the shaft 30 further includes a fixing portion 400. The fixing part 400 is a part for mechanically positively fixing the first forming member 41 and the second forming member 42 of the shaft 30 to each other.
Thereby, the mechanical fixing strength of the first forming member 41 and the second forming member 42 of the shaft 30 can be improved.
[0040]
As the plate-like member 20 shown in FIGS. 19 to 22, the same member as the plate-like member shown in FIGS. 3 to 6 is employed.
FIG. 19 is a perspective view showing the shaft 30 and its peripheral portion. 20 is a side view as viewed from the direction E in FIG. 19, FIG. 21 is a plan view of the shaft 30 and its peripheral portion in FIG. 19 viewed from the direction F, and FIG. It is the side view which looked at the peripheral part from G direction.
[0041]
The shaft 30 and its peripheral parts shown in FIGS. 19 to 22 can be manufactured by the projection member manufacturing apparatus 150 shown in FIG. 23A and the projection member manufacturing method 61 shown in FIG.
The projection member manufacturing method 61 includes an outer shape removing step ST11, a fixed part bending step ST12, a bending step ST13, a bending and raising step ST14, and an ironing step ST15.
[0042]
The projection member manufacturing apparatus 150 includes an outer shape removal processing unit 101, a fixed unit bending processing unit 190, a bending processing unit 102, a bending and raising processing unit 103, and an ironing processing unit 196.
The outer shape removing section 101, the fixed section bending section 190, the bending section 102, and the bending section 103 are molds each having a punch and a die, and the ironing section 196 is a mold having a punch and a stripper. .
[0043]
23A has a structure similar to that of the outline removal processing unit 101 shown in FIG. 7A, and includes a punch 110 and a die 111. The fixed part bending section 190 has a die 193 and a punch 194.
The bending processing unit 102 in FIG. 23A has the same structure as the bending processing unit 102 illustrated in FIG. 7A, and includes a punch 120 and a die 121. The bending and raising section 103 has the same structure as the bending and raising section 103 shown in FIG. 7A, and includes a punch 130 and a die 131.
The ironing processing section 196 in FIG. 23A has an ironing punch 198, a stripper 199, and a bush 197.
[0044]
Next, a method 61 of manufacturing the protruding member of FIG. 23B will be described.
Outline removal process ST11
The outer shape removing step ST11 in FIG. 23B is performed as shown in FIGS.
The outer shape removal step ST11 is performed using the punch 110 and the die 111 of the outer shape removal processing unit 101 in FIGS. 24 and 23A. A plate-like member 20 is detachably placed on the die 111.
[0045]
When the punch 110 is pressed along the P direction by an actuator (not shown), the plate-shaped member 20 is formed with outer shape cutout grooves 451 and 452 as shown in FIGS. The first forming member 41 and the second forming member 42 are formed on the plate-like member 20 by forming the outer shape removing grooves 451 and 452.
However, the punchable shape of the punch 110 of FIG. 24 is slightly different from that of the punch 110 of FIG. 7A, and as shown in FIG. It can be formed on the forming member 42. The fixing portion 400 includes two claw portions 501 and two concave portions 503. The two claw portions 501 are provided on the second forming member 42. The two concave portions 503 are provided on the first forming member 41.
[0046]
26 has straight portions 451A, 451B, 451C and inclined portions 451D, 451E. Another outer shape extraction groove 452 has linear portions 452A, 452B, 452C and inclined portions 452D, 452E.
The two concave portions 503 are formed at the corners of the first forming member 41 corresponding to the intersection of the straight portions 451A and 451C and the intersection of the straight portions 451B and 451C.
Similarly, the two claw portions 501 are provided at corners of the second forming member 42 corresponding to intersections of the straight portions 452A and 452C and intersections of the straight portions 452B and 452C. .
[0047]
The recess 503 is formed at a position opposite to the connection portion 451F. Moreover, the two concave portions 503 and 503 are formed at symmetric positions with respect to the arrangement line 43. Similarly, the claw portions 501 and 501 are formed at symmetric positions with respect to the array line 43. The claw portions 501 and 501 are, for example, L-shaped projecting portions.
In this way, when the plate-shaped member 20 is subjected to the outer shape removal processing by the punch 110, the first forming member 41 and the second forming member 42 are formed, and at the same time, the concave portion 503 of the fixing portion 400 and the claw portion 501 are formed. .
[0048]
Fixed part bending step ST12
The fixed part bending step ST12 in FIG. 23B is performed as shown in FIGS.
The fixed part bending step ST12 uses the fixed part bending processing unit 190 shown in FIGS. 27 and 23A. The fixed section bending section 190 uses a punch 194 and a die 193. The claw portion 503 shown in FIGS. 28 and 29 is sandwiched and pressed between the die 193 and the punch 194, so that the claw portion 501 is formed with a fixed portion bent portion 509 of the claw portion. As a result, as shown in FIG. 27, the cross-sectional shape of the claw portion 501 is formed substantially in a J-shape or an L-shape. The fixed part bending portion 509 is shown in FIGS. 28 and 29.
[0049]
Bending step ST13
The bending step ST13 in FIG. 23B is performed according to FIGS.
FIGS. 30 to 32 show a bending processing unit 102 for performing a bending process. The bending section 102 can have a structure substantially similar to that of the bending section 102 shown in FIG. 7A, and has a punch 120 and a die 121.
[0050]
On the first forming member 41 and the second forming member 42, arc-bent portions 200 and 201 are formed by the punch 120 and the die 121. At this time, the arc-shaped bent portions 200 and 201 are formed so that the shape of the fixed portion bent portion 509 of the claw portion does not change.
In the state where the arc-shaped bent portions 200 and 201 are formed on the first forming member 41 and the second forming member 42 in this way, as shown in FIGS. The bent portion 509 of the fixed portion protrudes in the opposite direction along the J direction, as shown in particular in FIG.
[0051]
Bending process ST14
The bending and raising step ST14 shown in FIG. 23B is performed as shown in FIGS.
36 and FIG. 23A have a punch 130 and a die 131. By the punch 130 and the die 131, the first forming member 41 and the second forming member 42 are bent and raised from the plate-shaped member 20 in directions approaching each other along H1 and H2 as shown in FIG. Thus, the first forming member 41 and the second forming member 42 form the cylindrical shaft 30 in a state of being in close contact with each other.
In this state, the fixed portion bent portion 509 of the claw portion of the fixed portion 400 is in a state of standing up along the outside of the shaft 30 in the axial direction as shown in FIGS.
[0052]
Ironing process ST15
The ironing step ST15 shown in FIG. This ironing step ST15 is performed as shown in FIG. 41 and FIG.
The ironing process ST15 uses the ironing processing unit 196 shown in FIGS. 41 and 23A. The ironing processing unit 196 includes a bush 197, an ironing punch 198, and a stripper 199.
[0053]
The ironing processing unit 196 performs an ironing process while mechanically pressing the outer peripheral surfaces of the first forming member 41 and the second forming member 42 to adjust the outer shape of the shaft 30 shown in FIG. 42. In addition, by the ironing processing of the ironing processing unit 196, the fixed part bending portion 509 of the claw of the fixing part 400 shown in FIG. 40 is bent from the protruding state shown in FIG. 40 to the state shown in FIG. As a result, the fixed portion bent portion 509 of the claw portion closely overlaps the concave portion 503 side. Thereby, the first forming member 41 and the second forming member 42 can improve mechanical fixing strength by engaging the claw portion 501 and the concave portion 503 of the fixing portion 400. Therefore, the accuracy of the outer shape of the shaft 30 can be maintained at a high accuracy, and the shaft 30 can be maintained at a highly accurate cylindrical shape.
[0054]
The stripper 199 of the ironing unit 196 shown in FIG. 41 is pushed in the U direction by an actuator (not shown). In this case, the ironing punch 198 has entered the first forming member 41 and the second forming member 42. The bush 197 is fitted into the outer peripheral surfaces of the first forming member 41 and the second forming member 42 from outside.
By doing so, the bush 197 and the ironing punch 198 shown in FIG. 41 press the stripper 199 in the U direction by an actuator (not shown), thereby bending the claw fixing portion shown in FIG. 42 along the J direction. The portion 509 can be flat and can be closely attached to the peripheral portion of the concave portion 503 of the first forming member 41.
[0055]
In the embodiment of the present invention, when the projecting member is formed, since the outer shape is removed, deformation such as warpage does not occur in the plate member, so that the shape accuracy of the plate member can be maintained. Since the plurality of forming members are formed by performing an outer shape punching on a plate-shaped member, there is no particular limit or restriction on the length of the formed projecting member, unlike the conventional drawing process.
Since the plurality of forming members are formed by performing an outer shape punching on the plate-shaped member, unlike the conventional drawing process, the plurality of projecting members can be easily formed at close positions in the plate-shaped member. Can be formed. The projection member first obtains a plurality of formed members by removing the outer shape from a plate-shaped member. The cross sections of the plurality of forming members have a bent shape, and the plurality of forming members are formed by bending and raising a plate-like member, so that the protruding member can be easily formed, and the cost can be reduced.
The plurality of forming members are a first forming member and a second forming member. The first forming member and the second forming member can be easily formed into a predetermined shape by bending and raising the plate-shaped member in a direction approaching each other from opposite directions.
[0056]
The present invention can be applied not only to the devices shown in FIGS. 1 and 2 but also to, for example, a small printer 501 shown in FIG.
The printer main body 510 of the printer 501 shown in FIG. 43 has an internal frame plate (an example of a plate-shaped member) 520 therein. The inner frame plate 520 has the shaft 30 for fixing to the printer main body 510. The shaft 30 is used as a fixing shaft for fixing the internal frame plate 520 to the printer main body 510. Therefore, the printer main body 510 is a mounting target for mounting the internal frame plate 520.
[0057]
As described above, the projection member of the present invention is formed so as to integrally project from the plate-shaped member. For example, the shaft as the projecting member may be used as a shaft for rotatably supporting the gear, or as a fixing shaft for fixing the internal frame plate to the printer main body 510 as shown in FIG. You can also.
Since the projecting member protrudes from the plate-shaped member and is formed integrally with the plate-shaped member, the plate-shaped member and the projecting member are not joined as separate members, but at least the outer shape is removed and bent. By performing the bending and raising, it can be easily formed into, for example, a cylindrical shape, and the manufacturing cost can be reduced.
[0058]
For example, the projecting member such as a shaft may have a circular cross section, a square, an ellipse, or various other cross sections.
The fixing portion 400 shown in FIG. 42 is configured by engaging the claw portion and the concave portion, but it is of course possible to adopt another shape.
According to the method for manufacturing a projecting member of the present invention, the plate-shaped member is not warped, and the axial length of the projecting member is not particularly limited. Further, as shown in FIG. 2, for example, the plurality of projecting members can be formed at positions close to the plate-shaped member.
[0059]
The projection member of the present invention is not limited to the illustrated example of the device, and can be applied to devices in various fields.
The present invention is not limited to the above embodiments, and various changes can be made without departing from the scope of the claims.
Each configuration of the above embodiment can be partially omitted or arbitrarily combined so as to be different from the above.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a printer as an example of a device including a plate-shaped member having a projection member according to the present invention.
FIG. 2 is a perspective view showing an example of a plate-like member and a shaft of FIG. 1 and an object to be mounted thereon.
FIG. 3 is a perspective view showing one shaft and its peripheral portion in the first embodiment of the present invention.
FIG. 4 is a side view showing the shaft of FIG. 3 and its peripheral portion as viewed from a direction E in FIG. 3;
FIG. 5 is a plan view seen from a direction F in FIG. 3;
FIG. 6 is a side view as viewed from a direction G in FIG. 3;
FIG. 7 is a diagram showing an example of a method for manufacturing a projection member and an apparatus for manufacturing a projection member according to the present invention.
FIG. 8 is a side view illustrating an example of an outer shape removal processing unit.
FIG. 9 is a perspective view of a plate-like member showing a state after the outer shape removal processing.
FIG. 10 is a plan view of the plate-like member of FIG. 9;
FIG. 11 is a side view showing an example of a bending processing unit.
FIG. 12 is a perspective view showing a structural example of a bending section.
FIG. 13 is a side view showing a structural example of a bending section.
FIG. 14 is a perspective view of a plate-like member showing a state where a bending process has been performed.
FIG. 15 is a plan view of the plate-like member of FIG. 14;
FIG. 16 is a side view of the plate-shaped member of FIG.
FIG. 17 is a side view having a partial cross section showing an example of the bending and erecting section.
FIG. 18 is a side view showing the shaft and the plate-like member after the bending and erecting process.
FIG. 19 is a perspective view showing a shaft and its peripheral portion in a second embodiment of the present invention.
FIG. 20 is a side view as seen from a direction E in FIG. 19;
FIG. 21 is a plan view seen from a direction F in FIG. 19;
FIG. 22 is a side view as seen from the direction G in FIG. 19;
FIG. 23 is a view showing another example of the method for manufacturing a projection member and the apparatus for manufacturing a projection member according to the present invention.
FIG. 24 is a side view showing an example of the outer shape removal processing unit in FIG. 23;
FIG. 25 is a perspective view showing a plate-shaped member subjected to an outer shape removal process.
FIG. 26 is a plan view showing a plate-shaped member subjected to an outer shape removal process.
FIG. 27 is a diagram showing a fixed part bending processing unit in FIG. 23;
FIG. 28 is a diagram showing a plate-shaped member having a fixed portion subjected to a bending process.
FIG. 29 is a perspective view showing a plate-shaped member that has undergone a fixing part bending process.
FIG. 30 is a side view showing an example of a bending section in FIG. 23;
FIG. 31 is a perspective view of a bending section in FIG. 30;
FIG. 32 is a side view of the bending section shown in FIG. 30;
FIG. 33 is a perspective view showing a bent plate-shaped member.
34 is a plan view showing the bent plate-shaped member of FIG. 33.
FIG. 35 is a side view of the plate-shaped member of FIG. 34;
FIG. 36 is a side view having a partial cross section showing the bending-raising processing unit of FIG. 23;
FIG. 37 is a side view showing the shaft and the plate-like member after the bending and erecting process.
FIG. 38 is a perspective view showing a shaft after bending and raising and its periphery.
FIG. 39 is a plan view of the plate-like member and the shaft of FIG. 37;
FIG. 40 is a side view of the plate-shaped member and the shaft of FIG. 39;
FIG. 41 is a side view having a partial cross section showing an example of the ironing processing unit of FIG. 23;
FIG. 42 is a side view showing a shaft and a plate-like member after ironing.
FIG. 43 is a perspective view showing an example of another device to which the present invention is applied.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 ... Printer (an example of apparatus), 20 ... Plate-shaped member, 30 ... Shaft (an example of a protrusion member), 31-33 ... Gear (object to be mounted), 41 ... 1 forming member, 42... 2nd forming member, 51, 52... Outer shape removing groove, 101... Outer shape removing processing portion, 102... Bending processing portion, 103. ... fixed part bending processing part, 196 ... ironing processing part, ST1, ST11 ... outer shape removal step, ST2, ST13 ... bending step, ST3, ST14 ... bending and raising step, ST12 ... Fixed part bending process, ST15 ... ironing process

Claims (9)

A projecting member that projects from the plate-shaped member and is formed integrally with the plate-shaped member,
The cross section of the plurality of forming members has a bent shape by bending a plurality of forming members formed by performing an outer shape punching on the plate-shaped member, and A protruding member formed by bending and erecting from a shape-like member. The plurality of forming members are a first forming member and a second forming member, and the first forming member and the second forming member are bent and raised from the plate-like member in a direction approaching each other from opposite directions. The projection member according to claim 1, wherein: The projection member according to claim 1 or 2, wherein the projection member is a cylindrical shaft for mounting an object to be mounted. A method of manufacturing a projecting member that is formed integrally with the plate-shaped member by projecting from the plate-shaped member,
For the plate-shaped member, an outer shape removing step for forming a plurality of formed members by removing the outer shape,
A bending step of bending the plurality of forming members to form a cross section of the plurality of forming members into a bent shape;
A bending and raising step of forming a projecting member by bending and raising the plurality of forming members from the plate-shaped member,
A method for manufacturing a projection member, comprising: The plurality of forming members are a first forming member and a second forming member, and the first forming member and the second forming member are bent and raised from the plate-like member in a direction approaching each other from opposite directions. The method for manufacturing a projection member according to claim 4, wherein: In the outer shape removing step, when forming the plurality of forming members by extracting the outer shape, a fixing portion for fixing the plurality of forming members to each other is formed in the plurality of forming members,
Further, between the outer shape removing step and the bending step, a fixed part bending step of bending the fixed parts of the plurality of forming members in advance,
After the bending and raising step, while ironing out the outer shape of the protrusion member, pressing the fixing portion of the plurality of forming members to fix the plurality of forming members to each other,
The method for manufacturing a projection member according to claim 4, comprising: 7. The method for manufacturing a projection member according to claim 4, wherein the projection member is a cylindrical shaft for mounting a mounting target. An apparatus for manufacturing a projecting member that projects from a plate-shaped member and is formed integrally with the plate-shaped member,
For the plate-like member, an outer shape removal processing unit for forming a plurality of formed members by removing the outer shape,
A bending processing unit that bends the plurality of forming members to form a cross section of the plurality of forming members into a bent shape.
A bending and raising processing unit that forms the projection member by bending and raising the plurality of forming members from the plate-shaped member,
An apparatus for manufacturing a projection member, comprising: The outer shape removal processing unit, when removing the outer shape to form the plurality of forming members, the plurality of forming members form a fixing unit for fixing the plurality of forming members to each other,
Furthermore, between the outer shape removal processing by the outer shape removal processing unit and the bending process by the bending processing unit, a fixed part bending processing unit that bends the fixed parts of the plurality of forming members in advance,
After the bending and raising, the outer shape of the protruding member is squeezed and adjusted, and an ironing processing unit that presses the fixing unit of the plurality of forming members to fix the plurality of forming members together,
The manufacturing device of a projection member according to claim 8, comprising:

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