JP2017092197A - Opening and closing mechanism of center folding type opening and closing cover - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an opening and closing mechanism for opening and closing a center folding type opening and closing cover stably.SOLUTION: A center folding type opening and closing cover 10 including a first rotatable cover member 11 supported by a fixed shaft 23 in the horizontal direction, and a second cover member 12 coupled rotatably for the first rotatable cover member 11 by a movable shaft 25 parallel with the fixed shaft 23, and provided on the upper surface of the machine body of a work machine further includes a pair of guide rollers 35 provided at the opposite ends of the second cover member 12 in the horizontal direction, and a groove type guide rail 33 constituting the movement locus of the guide rollers 35. At least between one guide roller 35 and the groove type guide rail 33, lateral shift prevention means 38 for preventing shift of the guide roller 35 in the rotational axis direction is provided.SELECTED DRAWING: Figure 3

Description

  The present invention relates to an opening / closing mechanism for stably opening and closing a folding-type opening / closing cover.

  The manufacturing work machine includes an assembly work machine for assembling an electric circuit, and the following Patent Document 1 discloses an example. This manufacturing machine is a component mounting machine that mounts electronic components on a circuit board, and an opening / closing cover is provided on the upper surface side of the work machine body. In particular, the folding cover is a folding type opening / closing cover in which a first cover member and a second cover member are connected by a hinge so as to be folded in two in the longitudinal direction of the machine body. A gas spring that assists the operator's opening operation is attached to the folding-type open / close cover, and an open / close mechanism is configured so that the guide rollers provided on the cover member roll in the left and right groove-type guide rails. Has been. Then, when the operator performs an opening operation on the second cover member located in front, the folding-type opening / closing cover is folded in two so that the front end portion is moved rearward, and the fuselage The front upper surface is opened.

International Publication WO2014 / 118939

  In the conventional folding open / close cover of the conventional example, the first cover member is rotatably attached to the main body side by the rotation shaft on the fixed side, and the second cover member is attached to the first cover member. Are connected by a rotating shaft on the movable side. A hinge or the like is used for the rotating shaft, and the first cover member and the second cover member are made of a thin acrylic plate or the like. For this reason, the folding cover is not rigid enough, and if the force is biased in the left and right width direction (rotating axis direction) when opening and closing, the side surface of the guide roller on one side is pressed against the grooved guide rail, and its resistance Will catch you. At that time, the operator performs an opening / closing operation while adjusting the rotation of the left and right guide rollers by shaking the folding type opening / closing cover 10. Therefore, when the hooked state is repeated, the guide roller or the rotating shaft to which an excessive force is applied is damaged or the life is shortened.

  Therefore, an object of the present invention is to provide an opening / closing mechanism for a center folding type opening / closing cover that stably opens and closes the center folding type opening / closing cover.

  The opening / closing mechanism of the folding type opening / closing cover according to the present invention is configured to rotate with respect to the first cover member by a first cover member that is supported by a horizontal fixed shaft and is rotatable, and a movable shaft parallel to the fixed shaft. And a pair of guide rollers provided at both ends in the horizontal direction of the second cover member. And a groove-type guide rail that constitutes a movement locus of each of the guide rollers, and prevents the guide roller from being displaced in the rotation axis direction between at least one of the guide rollers and the groove-type guide rail. A lateral displacement prevention means is provided.

  According to the present invention, the guide roller rolls in the groove-type guide rail when the folding-type opening / closing cover is opened / closed, and between the at least one guide roller and the groove-type guide rail, for example, a grooved guide roller By providing means for preventing lateral misalignment by the rod-shaped rail provided in the groove-type guide rail, the guide roller performs rolling while preventing misalignment in the rotation axis direction in the groove-type guide rail, so that stable opening and closing is performed. .

It is the external appearance perspective view which showed the manufacturing work machine. It is the side view of the AA arrow of FIG. 1 which showed the opening / closing mechanism of the folding type opening / closing cover. It is the side view which showed the opening-and-closing mechanism of the half-open state of the folding type opening-and-closing cover. It is the side view which showed the opening-closing mechanism of the fully open state of a middle folding type | mold opening-and-closing cover. It is sectional drawing of the front-back direction which showed a pair of groove type guide rail and guide roller. It is the perspective view which showed the opening / closing mechanism by the side of a guide roller with a groove | channel. It is the side view which showed the process in which a guide roller passes a stopper.

  Next, an embodiment of the opening / closing mechanism of the folding type opening / closing cover according to the present invention will be described below with reference to the drawings. In the present embodiment, an opening / closing mechanism of a folding-type opening / closing cover provided in a manufacturing machine will be described as an example, as in the conventional example. FIG. 1 is an external perspective view showing the manufacturing machine. The manufacturing machine 1 is an assembling machine for assembling parts as a manufacturing work. For example, a predetermined part is selected from a plurality of prepared parts and assembled to a substrate to be transported. . Therefore, the manufacturing work machine 1 includes a transport device for transporting the substrate, a component supply device for supplying components, and a work head and a drive device that directly handle the components.

  The manufacturing machine 1 is covered with an exterior panel composed of an upper cover 2 and a side cover 3. And the monitor 5 and the operation part 6 are each provided before and behind the body, and the signal lamp 7 is also arrange | positioned forward and backward. The side cover 3 is provided with substrate transfer openings 301 with open / close doors on both the left and right sides so that substrates can be delivered to and from adjacent working machines. In addition, a component supply opening 302 is also opened in the front-rear direction, and a component supply device 100 indicated by a broken line on which a plurality of supply components are mounted is installed. In the present embodiment, the Y-axis direction in the drawing is the front-rear direction of the manufacturing machine 1, the X-axis direction is the left-right width direction, and the Z-axis direction is the height direction.

  The upper cover 2 of the manufacturing machine 1 is provided with a foldable opening / closing cover 10 that opens the component supply opening 302 widely. In particular, in the manufacturing machine 1, the folding type opening / closing cover 10 is configured on both the front side of the drawing and the opposite side. Then, by opening the folding type opening / closing cover 10, the operator can work inside the machine body from the front and back of the machine body. The middle folding type opening / closing cover 10 is configured to operate so as to be flipped upward. In other words, if the open / close cover is made of a single plate, the turning radius of the cover end becomes large, making it difficult to open and close in a narrow space. Therefore, the middle folding type opening / closing cover 10 is employed, and is configured to be rotated in an upward direction and to be folded in two so as to suppress the height.

  Here, FIG. 2 is a side view taken along the line AA of FIG. More specifically, FIG. 2 is a cross-sectional view showing an end portion in the width direction of the folding type opening / closing cover 10 located on the right side of the manufacturing work machine 1 shown in FIG. In the folding type opening / closing cover 10, a first cover member 11 and a second cover member 12 formed of a thin acrylic plate are connected by a hinge. The first cover member 11 has a shape that is gently curved so as to constitute the upper surface of the body, and the second cover member 12 has a shape that is bent so as to constitute the front portion of the body. The first cover member 11 and the second cover member 12 are configured to be folded in two as shown in FIGS. 3 and 4 when opened and closed. 3 shows a half-open state of the folding type opening / closing cover 10, and FIG. 4 shows a fully opened state of the folding type opening / closing cover 10.

  As for the 1st cover member 11 and the 2nd cover member 12, the support structure is provided in the back surface of the acrylic board, and the side frames 15 and 16 are integrally fixed to the width direction both ends, The side frames 15 or the side frame 16 are connected to each other by width direction frames 17a, 17b, 17c and the like. On the other hand, the main body of the manufacturing machine 1 is provided with support pillars 21 on both sides in the width direction, and the folding type opening / closing cover 10 is rotatably assembled to the support pillars 21. A support frame 22 is fixed to the support pillar 21, and the support frame 22 and the width direction frame 17 a of the first cover member 11 are connected by a hinge 23. Thereby, the rotating shaft of the 1st cover member 11 extended in the body width direction comprised in the horizontal direction by the hinge 23 is provided in the position of the fixed shaft part 201 shown in FIG.

  The first cover member 11 and the second cover member 12 are connected to each other in the width direction frames 17b and 17c by a hinge 25. Therefore, a rotary shaft between the first cover member 11 and the second cover member 12 extending in the body width direction, which is configured in the horizontal direction by the hinge 25, is provided at the position of the movable shaft portion 202 shown in FIG. . In the opening / closing mechanism of the folding-type opening / closing cover 10, the rotation axis by the hinge 23 is a fixed axis, and the rotation axis by the hinge 25 is a movable axis parallel to the fixed axis. A handle 26 (see FIG. 1) is attached to the lower end portion of the front surface of the second cover member 12. Therefore, the operator opens and closes the folding type opening / closing cover 10 by grasping the handle 26 and applying a force.

  The folding type opening / closing cover 10 cannot directly transmit a force from the handle 26 to the first cover member 11, and it is difficult to transmit the force particularly when opened. Therefore, the first cover member 11 is provided with a gas spring 31 for assisting the opening operation, so that the operator can open the folding type opening / closing cover 10 only by guiding with a hand. Yes. Specifically, a support bracket 28 is fixed to the support column 21 along the side surface of the machine body, the rod tip of the gas spring 31 is pinned thereto, and the opposite cylinder side end is attached to the side frame 15. It is pinned. The gas spring 31 is disposed sideways in the fully closed state shown in FIG. 2 and is in a contracted state due to the weight of the folding type opening / closing cover 10. And when the folding type opening-and-closing cover 10 opens, as shown in FIG.3 and FIG.4, it is comprised so that the 1st cover member 11 may be directly rotated by the output at the time of expansion | extension operation | movement.

  The middle folding type opening / closing cover 10 is opened / closed in a state where the first cover member 11 is turned and the second cover member 12 is suspended. Therefore, a stable opening / closing operation cannot be performed simply by connecting the second cover member 12 with the rotation shaft. In view of this, the folding type opening / closing cover 10 is provided with guide means for restricting the movement of the second cover member 12 during opening and closing.

  The main body of the manufacturing machine 1 is provided with L-shaped guide rails 33 and 34 on both sides in the width direction, and the second cover member 12 has a pair of guide rollers at the front lower end and at both ends in the width direction. 35 and 36 (refer FIG. 5) are attached. The guide rollers 35 and 36 are inserted into the groove type guide rails 33 and 34. 5A shows the groove-type guide rail 33 and the guide roller 35 shown in FIGS. 3 to 5, and FIG. 5B shows the groove-type guide rail 34 and the guide provided symmetrically on the opposite side. A roller 36. The groove-type guide rails 33 and 34 are formed by deforming a C-shaped channel into an L-shape, and guide rollers 35 and 36 are pivotally supported on the outer sides of the left and right side frames 16 so as to roll inside.

  When the folding open / close cover 10 opens and closes, the guide rollers 35 and 36 roll in the groove-type guide rails 33 and 34, whereby the position of the front end portion of the second cover member 12 is uniquely determined. It becomes like this. As a result, the deformation operation of the first and second cover members 11 and 12 of the folding type opening / closing cover 10 is uniquely determined, and the opening / closing operation by the operator is stabilized, and an unreasonable force is applied to the folding type opening / closing cover 10. It is possible to prevent breakage of the shaft and the like caused by the addition of, and damage due to interference with others. And in this embodiment, the improvement with respect to such an opening-closing mechanism is further aimed at. Specifically, it is a guide mechanism shown in FIG.

  Conventional guide rollers are symmetrical, and both sides are constituted by guide rollers 36 shown in FIG. 5B. A gap B is provided in the width direction between the groove-type guide rail 34 and the guide roller 36 to ensure smooth rolling of the guide roller 36. However, as described in the above-mentioned problem, the folding type opening / closing cover 10 is not sufficiently high in rigidity, so that deformation is likely to occur. Then, since the dimension of the gap B is smaller than the size of the folding type opening / closing cover 10, the guide roller 36 rolls while rubbing the side surface against the grooved guide rail 34 even with slight deformation. Once the guide roller 36 hits the side surface 341 of the groove-type guide rail 34, the resistance further causes a difference in the movement of the left and right guide rollers 36, increasing the inclination and worsening the situation. Then, when handling such as forcibly closing the folding type opening / closing cover 10 in the hooked state or shaking the folding type opening / closing cover 10 to correct the hooked state, the guide roller 36 or the hinge 23, The life of the corresponding part such as 25 is shortened or damaged.

  Therefore, in the opening / closing mechanism of the present embodiment, one is left with the structure shown in FIG. 5B, and the other is changed to the structure shown in FIG. That is, a guide roller 35 (grooved roller) having a groove 351 is provided on one side, and a rod-shaped rail 38 made of a round bar is welded to the groove-type guide rail 33. Here, FIG. 6 is a perspective view showing an opening / closing mechanism on the guide roller 35 side. The rod-shaped rail 38 has a thickness matching the groove 351 of the guide roller 35 and is attached to the upper surface of the lower portion 331 of the groove-type guide rail 33 over the entire length in the longitudinal direction. Therefore, the guide roller 35 is configured such that the groove portion 351 is fitted to the rod-shaped rail 38 and is not laterally shifted in a normal state. Furthermore, even if a strong force in the width direction is applied to the guide roller 35, the guide roller 35 hits the upper portion 332 of the groove type guide rail 33, and the groove portion 351 is configured not to be detached from the rod-shaped rail 38.

  By the way, the folding type opening / closing cover 10 is opened in two stages, a half-open state shown in FIG. 3 and a fully-open state shown in FIG. This is because an open space corresponding to the work content of the manufacturing work machine 1 can be secured by a minimum opening operation with respect to the folding type opening / closing cover 10. When the folding-type opening / closing cover 10 is opened, the output of the gas spring 31 is assisted in this embodiment, and the opening is changed without the operator applying force. That is, the folding-type opening / closing cover 10 is always applied with a force in the opening direction during the opening operation. Therefore, in order to make the half-open state shown in FIG.

  The stopper 41 restricts the movement of the guide roller 35, and a plate spring 411 is fixed to the upper portion 332 of the groove-type guide rail 33, and a V-shaped stopper 412 is joined to the free end side of the plate spring 411. And are integrally formed. A notch 335 is formed in the upper portion 332 of the groove-type guide rail 33, and a stopper portion 412 of the stopper 41 enters the groove-type guide rail 33 therefrom. Therefore, the guide roller 35 that rolls in the groove-type guide rail 33 hits the stopper 412 of the stopper 41 and is restricted from moving. However, when the operator applies force, the leaf spring 411 is bent, and the guide roller 35 can push up the stopper 412 and pass through.

  The opening / closing mechanism for the folding-type opening / closing cover 10 is configured to prevent the lateral displacement between the guide roller 35 and the rod-shaped rail 38 only on the right side of the manufacturing machine 1 shown in FIG. ing. This is because in the manufacturing work machine 1 of the present embodiment, since the component supply device 100 is installed on the left side, the handle 26 is attached to the right-side biased position. However, in the present embodiment, the arrangement is on the same side because it is particularly preferable in relation to the position of the handle 26. However, even if it is on the opposite side, the effect is not lost as described below. The position of the prevention means is not restricted by the position of the handle.

  Subsequently, when opening the folding-type opening / closing cover 10, the operator applies a force by grasping the handle 26 and pulling it upward from the closed state shown in FIG. The operation by the operator may be a slight force, and the opening operation of the gas spring 31 causes the gas spring 31 to extend and the folding type opening / closing cover 10 is deformed in the opening direction. That is, when the gas spring 31 extends, the first cover member 11 is rotated by the hinge 23 on the fixed shaft side, and the hinge 25 on the movable shaft side is raised. Therefore, the second cover member 12 connected by the hinge 25 is pulled up so as to be suspended. At that time, the guide rollers 35 and 36 positioned below the second cover member 12 roll in the groove-type guide rails 33 and 34.

  With the opening operation of the folding center opening / closing cover 10, the movement of the guide roller 35 moving in the groove-type guide rails 33, 34 is restricted by the stopper 41 at an intermediate position as shown in FIG. Here, FIG. 7 is a side view showing a process in which the guide roller 35 passes through the stopper 41. When the guide roller 35 is brought into contact with the stopper 41, the force is acting as indicated by the arrow in FIG. 7A due to the extension operation of the gas spring 31, but the half-open state is maintained as it is. Therefore, in order to fully open the folding type opening / closing cover 10, the operator applies a force as shown by an arrow in FIG. 7B. As a result, a force is applied to the stopper 41 upward via the inclined surface of the stopper 412, and the leaf spring 411 is bent. Further, when the operator applies force, the guide roller 35 pushes up the stopper 412 and passes through as shown in FIGS.

  After the guide roller 35 has passed through the stopper 412, the gas spring 31 is extended again to deform the folding type opening / closing cover 10 in the opening direction. Then, as shown in FIG. 4, the guide roller 35 moves to the end of the groove-type guide rail 33 (the guide roller 36 is also the same), and the folding type opening / closing cover 10 is fully opened. On the other hand, when closing the folding type opening / closing cover 10, a closing operation is performed in which the operator grasps and pulls the handle 26. Also in this case, when the guide rollers 35 and 36 move in the groove-type guide rails 33 and 34, the folding-type opening / closing cover 10 is fixedly closed. At the position of the stopper 41, the guide roller 35 pushes up the stopper 412 and passes through in the same manner as in the opening operation.

  By the way, the folding type opening / closing cover 10 is closed by a force attracted by the operator. Therefore, the force is biased to the left and right as compared with the case where the gas spring 31 is opened by the force of the left and right gas springs 31, and the guide roller easily hits the groove type guide rail as described above. However, the guide roller 35 according to the present embodiment rolls without lateral displacement in a state where the groove 351 is always fitted to the rod-shaped rail 38. That is, even if a lateral force is applied to the handle 26 from the operator, the guide roller 35 rolls without being laterally displaced in a lateral direction while suppressing the force. Therefore, the left and right guide rollers 35 and 36 are prevented from being pressed against the groove-type guide rails 33 and 34 on the side surfaces in the axial direction.

  Therefore, according to the present embodiment, the guide rollers 35 and 36 smoothly roll in the groove-type guide rails 33 and 34 when the folding-type opening / closing cover 10 is opened / closed, so that the operator can smoothly perform the opening / closing operation. Can do. In addition, since an unreasonable load is not applied to the folding type opening / closing cover 10, damage to low strength portions such as the guide rollers 35 and 36 and the hinges 23 and 25 can be prevented, and the life can be extended. It becomes like this. In particular, in the present embodiment, such an effect can be achieved by a lateral displacement preventing means having a simple configuration including the grooved guide roller 35 and the rod-shaped rail 38 provided in the groove-type guide rail 33. Therefore, it can be realized at a low cost by a simple improvement over the conventional manufacturing machine.

  Further, in the manufacturing machine 1 of the present embodiment, the handle 26 is offset to the right side. However, the guide roller 35 of the lateral deviation preventing means and the groove-type guide rail 33 of the rod-shaped rail 38 are provided on the same right side, so that the handle 26 is closed. Since the force applied in the lateral direction at the time is received on the guide roller 35 side at a close position, the closing operation of the middle folding type opening / closing cover 10 becomes more stable. That is, it becomes easy for the operator to perform the closing operation. However, since the effect of the present embodiment is achieved by preventing the lateral displacement of the guide rollers 35 and 36, the handle 26 may be located at the center portion or on the opposite left side.

  Moreover, the folding type opening / closing cover 10 of the manufacturing machine 1 has a shape in which the second cover member 12 is bent so as to form the front surface of the machine body. Therefore, even if it operates so that the handle 26 in the front part may be pulled up, the hinge 25 portion cannot be deformed into a chevron. In this regard, by providing the gas spring 31, the operator can easily open the folding type opening / closing cover 10. Furthermore, in this embodiment, by providing the stopper 41, the folding type opening / closing cover 10 can be in a half-open state. The configuration is simple and can be realized at low cost, and the operator's operation for returning from the half-open state to the full-open state or returning to the closed state is simple.

As mentioned above, although one Embodiment of this invention was described, this invention is not limited to this, A various change is possible in the range which does not deviate from the meaning.
In the above embodiment, the lateral displacement preventing means is constituted by the groove-type guide rail 33 provided with the grooved guide roller 35 and the rod-shaped rail 38. For example, the guide roller 36 and the groove-type guide rail orthogonal to the rotation axis thereof are used. It is good also as what combined the side shift prevention roller which rolls the side 341 of 34.
Further, for example, the rod-shaped rail 38 may be welded to the upper surface of the groove-type guide rail 33, or may be welded to the upper and lower surfaces.

DESCRIPTION OF SYMBOLS 1 ... Manufacturing work machine 2 ... Top cover 3 ... Side cover 10 ... Folding-type opening / closing cover 11 ... 1st cover member 12 ... 2nd cover member 15, 16 ... Side frame 23, 25 ... Hinge 26 ... Handle 31 ... Gas spring 33, 34 ... groove type guide rail 35, 36 ... guide roller 38 ... rod-shaped rail 41 ... stopper 351 ... groove 411 ... leaf spring 412 ... stop

Claims (5)

A first cover member supported by a horizontal fixed shaft and rotatable, and a second cover member rotatably coupled to the first cover member by a movable shaft parallel to the fixed shaft; It is a folding type opening and closing cover provided on the upper surface side of the work machine,
A pair of guide rollers provided at both ends in the horizontal direction of the second cover member, and a groove-type guide rail that constitutes a movement locus of each of the guide rollers,
A folding-type opening / closing cover characterized in that a lateral displacement prevention means for preventing displacement of the guide roller in the rotation axis direction is provided between at least one of the guide rollers and the groove-type guide rail. Opening and closing mechanism. The lateral displacement prevention means is
At least one of the guide rollers is a grooved roller,
A bar-shaped rail in which a groove portion of the grooved roller that rolls in the groove-type guide rail fits is formed on one or both of the upper surface and the lower surface inside the groove-type guide rail. The opening / closing mechanism of the folding type opening / closing cover described in Item 1.   The opening / closing mechanism of the folding type opening / closing cover according to claim 1 or 2, wherein a gas spring for assisting an upward opening operation with respect to the first cover member is provided. .   A notch is formed in at least one of the groove-type guide rails at the upper or lower portion where the rod-shaped rail is not present, and the free end of the leaf spring portion fixed to the outside of the groove-type guide rail extends from the notch 4. An opening / closing mechanism for a folding-type opening / closing cover according to claim 2 or 3, further comprising a stopper to which a V-shaped stopper inserted into the groove-type guide rail is fixed. . An opening / closing handle is attached to the second cover member at a biased position, and the lateral displacement prevention means is provided on a side closer to the handle in a pair of combinations of the guide roller and the grooved guide rail. The opening / closing mechanism of the folding type opening / closing cover according to any one of claims 1 to 4, wherein

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