JP2001225949A - Substrate holding rack - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a light substrate holding rack capable of reducing volume during packing. SOLUTION: The rack is assembled by engaging a support shaft 17b of a backrest member 15 with a hook 8 of a fixing base 2, engaging a support pipe 10 of an tilted base 3 with a hook 18 at the lower end of the backrest member 15, placing the support pipe 10 at the upper edge 4a1 of a horizontal part 4a of the fixing base 2, and engaging an engaging/disengaging bar 12 of the tilted base 3 with one of a locking/removing notch 7a. Since the engaging/ disengaging bar 12 engages with the engaging/disengaging notch 7a, the tilted base 3 is positioned and fixed in the back and forth direction. Thus, the backrest member 15 is tiltingly held and a substrate is held overlapped obliquely. The rack can be disassembled and packed in pieces, so that its volume can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a board holding rack for holding printed wiring boards in an overlapping manner and obliquely.

[0002]

2. Description of the Related Art A printed wiring board is converted into a printed wiring board through a number of manufacturing steps. The printed wiring board is transferred between many steps. For example, Japanese Patent Application Laid-Open No. 7-172650 discloses that a printed wiring board from a previous process is guided downward by a lifting and conveying device as a nearly vertical inclination, and is inclined on a rack integrally provided with a backrest member inclined on a base. Are successively stacked in the state described above. The printed wiring boards that are obliquely stacked on such a rack are sequentially taken out of the rack one by one and transported to the next step.

[0003]

In the above-described rack, the backrest member and the base have been integrated, and the height of the backrest member is relatively high. When transporting a substrate to a processing factory where the substrate is processed, there has been a problem that the package (volume when packed for transport) is large and very bulky. It is a first object of the present invention to provide a rack which can be made less bulky (having a smaller package) during transportation.
Further, the printed wiring board may be from thick to thin, and if the tilt angle of the backrest of the rack is fixed at a fixed angle as disclosed in the above-mentioned prior art, the tilt angle is If the angle is close to a right angle, the printed wiring board having a small thickness will bend under its own weight, and there is a problem that the printed circuit board cannot be smoothly taken out of the rack or sequentially stacked and held on the rack. Another object of the present invention is to provide a rack capable of holding a thin printed wiring board obliquely without bending it. Such racks are often transported manually by an operator and used so as to be installed at a predetermined work supply position of a processing machine. Reduction in weight was also desired. Still another object of the present invention is to reduce the weight of the entire rack.

[0004]

In order to solve the above-mentioned problems, in the present application, a backrest member is provided on a base on which the lower end of a substrate is placed, and a large number of substrates are leaned on the backrest member to be held obliquely. Board holding rack
The backrest member engages with the base so as to be foldable, and further comprises a holding means for holding the backrest member in an inclined state in a use mode (claim 1). According to this, since the backrest member can be folded, the overall volume when packing the rack can be reduced. In the folding structure, the base and the backrest member may be independent members, and the backrest member may be detachably engaged with the base. When packing the rack,
The backrest member and the base can be disassembled and separated into small packages. Further, the backrest member may be pivotally connected to the base and engaged therewith (claim 3). According to this, the backrest member can be folded and folded around the pivotally attached portion to be packed in a small size.

[0005] The backrest member is attached to the base so that the inclination angle is variable. According to this,
In the case of a printed wiring board with a small thickness, the inclination angle is set to a gentler (closer to horizontal) angle than closer to vertical,
It is easy to set a holding angle that does not cause deflection due to its own weight. Specifically, the base is provided with a rising portion, and a swinging support member that is opened downward is provided in the rising portion, and the swinging support member swings a support shaft provided at an intermediate portion of the backrest member. Possible and detachable fitting,
The lower end of the backrest member is engaged with the base so as to be adjustable in the front-rear direction (claim 5).

The base comprises a fixed base and an inclined base on which the lower end of the substrate is mounted. The inclined base is attached to the fixed base so as to be adjustable in the front-rear direction, and a backrest member is attached to the inclined base. The tilt angle of the backrest member may be changed by engaging in a foldable manner and changing the front-back position of the tilt base (claim 6).
It is preferable that a downwardly open engaging member is provided at a lower end of the backrest member, and a support shaft provided at a rear end of the inclined base is rotatably and detachably fitted into the engaging member. . According to this, since the fixed base and the inclined base can also be separated, the volume at the time of packing can be further reduced.

A rear end of the inclined base is mounted on the fixed base so as to slide on the fixed base, and one of a front portion of the fixed base and a front portion of the inclined base has a position holding member provided on the other. A large number of engaging and disengaging portions that can be engaged and disengaged from the vertical direction with respect to the joining member are provided in the front and rear direction, and by changing the engaging position of the engaging and disengaging portion and the position holding engaging member, the front and rear position of the inclined base is changed, It is preferable to keep the position (claim 8). According to this, it is possible to easily adjust and fix the position of the inclined base in the front-rear direction by engaging and disengaging the engaging portion and the engaging member, and as a result, it is not necessary to change the inclination angle of the backrest member.

Further, in the present application, at least one of the backrest member and the base is characterized in that its main constituent member is a pipe material. According to this, the weight of the entire board holding rack is reduced, and the labor burden during transportation by the operator is reduced.

Further, the present invention is directed to a substrate holding rack in which a backrest member is provided on a base on which a lower end of a substrate is placed, and a large number of substrates are placed on the backrest member and held obliquely. And an inclined base placed on the fixed base, and the fixed base is L
A pair of left and right pipe materials bent in a shape are joined by a horizontal pipe,
At its front end, there is provided a latching member with a number of engaging notches that open upward, and a hook that opens downward at the rising portion, and the inclined base uses a support pipe at the rear end to support the pipe material in the front and rear direction. At the same time, the hook member is integrally provided with an engaging / disengaging bar for engaging and disengaging with the latch member, and the backrest member has a backrest body formed by bending a pipe member, and a hook attached to and detachable from the hook. ,
The lower end is provided with a hook having a downward opening which is engaged with and disengaged from the support pipe (claim 10). According to this, the entire apparatus is reduced in weight, the fixed base, the inclined base, and the backrest member can be separated to reduce the load appearance, and the inclination angle of the backrest member can be very easily changed.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIG. 1, a base 1 comprises a fixed base 2 and an inclined base 3. In the fixed base 2 shown in FIG. 2, a pair of left and right side pipe members 4 in which the pipe members are bent in an L-shape are arranged, and are connected by a plurality of horizontal pipes 5 therebetween. The side pipe member 4 has a horizontal portion 4a.
And a rising portion 4b rising from the horizontal portion 4a. Each horizontal portion 4a of the left and right side pipe members 4 has a horizontal portion 4
The bottom plate members 6 each having an L-shaped cross section and having a length substantially corresponding to the entire length in the front-rear direction of FIG. Each horizontal part 4a
A plate-shaped latch member 7 is welded to the inside of the front end facing each other in the width direction so as to project a predetermined amount upward from the horizontal portion 4a. At the upper end of the protruding portion, a number of engaging and disengaging notches (an engaging and disengaging portion, in this case, a semi-circular notch) 7a opening upward.
Are formed at a predetermined pitch in the front-rear direction.
Along with 2, a holding means for holding the backrest member 15 in an inclined state when the substrate is held obliquely (usage mode) is configured. A hook 8 exemplarily serving as a swinging support member that opens downward is integrally welded to the upper end of each rising portion 4b of the side pipe member 4.

Next, as shown in FIG. 3, the inclined base 3 is composed of two straight mounting pipes 9 in the front-rear direction, two on each of the right and left sides, and the rear end of the four mounting pipes 9. Are welded together by a support pipe (support shaft) 10 in the width (lateral) direction, and the inclined base 3 in this connection state is such that the two longitudinal ends of the support pipe 10 are exactly the same as those of the L-shaped bottom plate member 6. The support pipe 10 is mounted on the upper surface 4a1 of the horizontal portion 4a of the fixed base 2 so as to be movable in the front-rear direction, while being fitted between the outer pieces 6a, 6a and being restricted from moving in the width direction. A pair of left and right mounting pipe members 9 are connected at their front portions by horizontal members 11, and the lower portions of the horizontal members 11 are provided with engaging and disengaging notches 7 of the latch members 7.
a and a disengagement bar (position holding engagement member) 12 for engaging and disengaging from above and below are integrally welded, and by changing the locking position between the engagement and disengagement bar 12 and the engagement notch 7a, The longitudinal position is adjusted.

As shown in FIG. 4, the backrest member 15 has three backrest bodies 16 in which a pipe material is bent in a U-shape, and three backrest bodies 16 are provided on the back side of the backrest body 15 at intervals in the vertical direction. Pipes 17a to 17c are integrally welded. The connection pipe 17b, which is located in the middle in the up-down direction, is a support shaft 17b that is detachably engaged with the hook 8 from below and is swingable in an engaged state. A hook (engaging member) 1 having a downward opening that is rotatably engaged with and disengaged from the support pipe 10 is provided on the rear side of both longitudinal ends of the connection pipe 17c attached to the lower end.
8 are welded. The backrest body portion where the hooks 18 are welded, that is, the lower ends of the members 16a at both ends in the width direction of the backrest body 16 are connected to the support pipes 10 of the mounting pipes 9 on both sides in the width direction of the inclined base 2. 9a
In order to avoid interference with the backrest body 16, the other backrest body 16 is notched and shorter than the lower end of the vertical portion.

The fixed base 2, the inclined base 3, and the backrest member 15 can be packed in a state of being separated after being manufactured by a rack manufacturer. It is convenient. Also, when racks are stocked, the stock volume is preferably reduced. In addition, in the rack of the present application, a hollow pipe material is frequently used as a main constituent member,
In that respect, the weight of the entire rack is extremely light, and the burden on the operator when transporting is small.

In this rack, the support shaft 17b of the backrest member 15 is fitted into the hook 8 of the fixed base 2 from below so as to be detachable and swingable, and the backrest is provided at a front portion (left side in FIG. 5) of the hook 8. The support pipe 10 of the inclined base 3 is fitted into the hook 18 at the lower end of the member 15, the support pipe 10 is placed on the upper edge 4 a 1 of the horizontal portion 4 a of the fixed base 2, and the disengagement bar 12 of the inclined base 3 is disengaged. It is assembled by engaging with one of the notches 7a. The engagement notch 7a is
5A, the inclined base 3 is inclined forward (toward the backrest member) with a downward gradient, and the upper end of the backrest member 15 is located rearward of the hook 8 (FIG. 5).
To the right). Since the engaging and disengaging bar 12 is fitted into the engaging and disengaging notch 7a, the inclined base 3 is positioned and fixed in the front-rear direction, and the hook 18 at the lower end of the backrest member 15 is fitted into the support pipe 10 of the inclined base 3. Therefore, the backrest member 15 is maintained in the inclined state as described above. Then, in this usage mode, the printed wiring boards W are successively stacked on the front side of the backrest member 15. Also, the printed wiring board W
As shown in FIG. 1, the rack on which the plurality of pieces of the bottom plate member 6 have an L-shaped cross section is placed on a roller conveyor 50 provided at a substrate (work) supply position to a substrate processing apparatus. 6a, the position in the rack width direction from both outer sides is regulated by the guide roller 51, and the printed wiring board W
Each time is supplied from the rack to the processing device one by one, it is used to be slightly advanced on the roller conveyor 50. At this time, on the roller conveyor 50,
Since the bottom plate 6b of the bottom plate member 6 is placed, the contact state is line contact and the contact state is line contact as compared with the case where the side pipe 4 having a circular cross section is placed on the roller conveyor 50 and the contact portion is point contact. It does not progress easily and has good durability.

When the thickness of the printed wiring board W is small and the inclination angle of the backrest member 15 is close to a right angle, there is a possibility that the backrest member 15 will bend under its own weight. The engagement and disengagement notch 7a, which is far away from the engagement with the engagement and disengagement bar 12, is engaged. Then, as shown in FIG.
The support pipe 10 moves forward on the upper edge 4a1, whereby the lower end of the backrest member 15 moves forward, and this movement causes the support shaft 17b to move downward in the hook 8, but the hook 8 In the state where the engaging / disengaging bar 12 is engaged with the engaging / disengaging notch 7a farthest from the rising portion 4b, the support shaft 1
Since the support shaft 17b is formed so as to be engaged with the support shaft 17b, the inclination angle of the support shaft 17b is reduced (FIG. 6). In this manner, the inclination angle of the backrest member 15 can be changed by a simple engagement / disengagement operation between the engagement / disconnection notch 7a and the engagement / disengagement bar 12, so that the optimal backrest member 15 in consideration of the deflection due to the thickness of the printed wiring board W is considered. The inclined state can be easily realized.

Note that the purpose of reducing the package is not limited to the above-described embodiment. For example, as shown in FIG. 7, the lower end of the backrest member 15A is rotatable at the rear of the base 1A. The backrest member 15A is pivotally mounted so that the entire backrest member 15A can swing back and forth, and as a holding means for holding the inclined state of the backrest member 15A, the rear portion of the base 1A is a rising portion 1Aa, and the front side surface of the rising portion 1Aa is The backrest member 15A may be configured so as to lean on the inclined surface 1Ab by its own weight, and the backrest member 15A may be folded forward to reduce the overall volume at the time of packing. Further, in the above-described embodiment of the present application, the inclination angle of the backrest member is made variable via the inclined base, but some engagement grooves are formed in the fixed base in the front-rear direction, and the engaging grooves are formed at the lower end of the backrest member. An engaging portion that engages with and disengages from the mating groove from the up and down direction is provided, and the engaging groove and the engaging portion are directly formed and disengaged to variably position the lower end of the backrest member in the front-rear direction, and the inclination angle of the backrest member May be changed.

[0017]

As described above, according to the present invention, the base and the backrest member are engaged so as to be foldable, so that the entire volume at the time of packing can be reduced, the packing appearance is reduced, and the transportation is facilitated. In particular, when the base and the backrest member are separated from each other, they can be transported more easily by packing them separately. Further, in the present application, since the inclination angle at the time of using the backrest member can be changed, the inclination angle of the backrest member can be set to an inclination angle at which the thin substrate does not bend under its own weight. In addition, since the inclination angle of the backrest member is changed by the engagement and disengagement of the engaging and disengaging portion that engages and disengages from the vertical direction, the change operation is extremely easy. Further, in the present application, since the pipe material is frequently used as the main component, the weight of the rack is reduced, and the burden on the operator during the transport operation is reduced.

[Brief description of the drawings]

FIG. 1 is a perspective view of a rack of the present application.

FIG. 2 is a perspective view of a fixed base.

FIG. 3 is a perspective view of an inclined base.

FIG. 4 is a perspective view of a backrest member.

FIG. 5 is a side view showing a state where the rack of the present application is assembled.

FIG. 6 is a side view when the angle of the backrest member is changed.

FIG. 7 is another embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Base 2 Fixed base 3 Inclined base 4 Side pipe material 4b Rising part 5 Horizontal pipe 7a Engagement notch (engagement part) 7 Hook member 8 Hook (oscillation support member) 10 Support pipe (support shaft) 12 Engagement / disengagement Bar (position holding / engaging member) 15 Back member 16 Back body 17b Support shaft 18 Hook (engaging member) W Printed wiring board

Claims (10)

[Claims] 1. A substrate holding rack in which a backrest member is provided on a base on which a lower end of a substrate is mounted to hold a large number of substrates obliquely over the backrest member. And a holding means for holding the backrest member in a tilted state of use in a useable manner. 2. The rack for holding a substrate according to claim 1, wherein the base and the backrest member are independent members, and the backrest member is detachably engaged with the base. 3. The rack for holding a substrate according to claim 1, wherein a backrest member is pivotally connected to and engaged with the base. 4. The substrate holding rack according to claim 1, wherein the backrest member is attached to the base so that the inclination angle is variable. 5. A base having a rising portion, a swinging support member opened downward at the rising portion, and a swinging support member provided at an intermediate portion of the backrest member. 5. The board holding rack according to claim 4, wherein said board holding rack is detachably fitted to said base, and said lower end of said backrest member is engaged with said base so as to be position-adjustable in the front-rear direction. 6. The base includes a fixed base and an inclined base on which a lower end of the substrate is placed. The inclined base is attached to the fixed base so as to be adjustable in the front-rear direction, and a backrest member is attached to the inclined base. The rack for holding a substrate according to claim 4 or 5, wherein the tilt angle of the backrest member is changed by foldably engaging and changing the front-back position of the tilt base. 7. A lower end of a backrest member is provided with an engaging member opened downward, and a support shaft provided at a rear end of the inclined base is rotatably and detachably fitted into the engaging member. 7. The board holding rack according to 6. 8. A rear end of the inclined base is mounted on the fixed base so as to slide on the fixed base, and one of a front part of the fixed base and a front part of the inclined base is provided on the other. A large number of engaging and disengaging portions that can be disengaged from the vertical direction with respect to the holding and engaging member are provided in the front and rear direction. The substrate holding rack according to claim 5, wherein the position is held. 9. The backrest member and at least one of the bases are mainly made of a pipe material.
The board holding rack as described in the above. 10. A board holding rack in which a backrest member is provided on a base on which a lower end of a board is mounted to hold a large number of boards leaningly on the backrest member. The fixed base is composed of a pair of left and right pipe members bent in an L-shape by a horizontal pipe, and has a large number of engaging and disengaging notches opened upward at its front end. A hook member is provided, and a hook that opens downward is provided in the rising portion. The inclined base connects the pipe material in the front-rear direction with a support pipe at the rear end, and engages with the hook member at a front portion thereof. The backrest member is integrally provided with a support shaft that is detachably connected to the hook on a backrest body obtained by bending a pipe material, and has a lower end connected to the support pipe at a lower end. A board holding rack to which a hook with a downward opening to be removed is attached.