JP5034108B2 - Mounted unit lifting device - Google Patents

Description

  The present invention relates to a mounting unit lifting apparatus, and more particularly to a mounting unit lifting apparatus configured to perform a lifting operation of the mounting unit using a lever mechanism.

  2. Description of the Related Art Conventionally, a housing structure of an information processing apparatus is often configured to be realized by moving a mounting unit up and down when taking out or storing a storage medium, for example. In this case, when the mounted unit is moved up and down, an elevating device with an auxiliary mechanism that includes an upward movement assist mechanism such as a gas spring or a coil spring is frequently used in order to save energy when moving up and down. Yes.

FIG. 5A and FIG. 5B show an example of the mounting unit lifting device as the related technology.
5A and 5B includes a mounting base 102 on which a mounting unit 106, which is a vertically moved member, a base main body 101 that detachably holds the mounting base 102, 5A of the mounting base 102, the arm portions 102A and 102B projecting outward from the left and right end portions, and the tip portions of the arm portions 102A and 102B are supported in a vertically movable manner. Base holding blocks 121 and 122 are provided.

  The base holding blocks 121 and 122 are arranged on the same center line as the push-up support mechanisms 107 and 108 mounted on the base body 101 and are supported from below. Here, reference numerals 102a and 102b denote bearings provided at the respective distal end portions of the arm portions 102A and 102B.

  Each of the push-up support mechanisms 107 and 108 includes a cylinder portion 107A and 108A having a gas spring (air spring) structure, and a support arm 107E as a piston rod that externally outputs the pressing force in the cylinder portions 107A and 108A. 108E, and is configured to press and hold the corresponding base holding blocks 121 and 122 from below to above via the support arms 107E and 108E.

  Further, the push-up support mechanisms 107 and 108 allow the mounting base 102 to move up and down when the mounting base 102 is moved up and down by an external force, and can stop the mounting base 102 at an arbitrary height position. It is configured.

Reference numeral 130 denotes a reed attached in the horizontal direction at the front center of the mounting base 102 . The mounting base 102 is moved up and down while holding the mounting unit 106 within the allowable range of the above-described push-up support mechanisms 107 and 108 by the operator moving the horizontal arm 130 up and down. .
Here, in FIG. 5, FIG. 5A shows a case where the mounting base 102 on which the mounting unit 106 is mounted is located above, and FIG. 5B shows the mounting base 102 on which the mounting unit 106 is mounted. The case where it is located below is shown.

Further, in FIG. 5 described above, a stopper function for stopping the downward movement of the mounting base 102 at the limit point is provided between the bottom surface of the mounting base 102 and the central region of the base body 101 described above. A mounting base locking mechanism 140 is provided. The mounting base locking mechanism 140 is formed on the mounting base 102 side and the base body 101 side as shown in FIG. 5 (see FIG. 5) in such a manner that one and the other locking pieces 140A and 140B formed in an L shape can be engaged . A) Equipped as shown in (B) .

  In this case, in the mounting base locking mechanism 140, one locking piece 140A is fixedly mounted on the bottom surface of the mounting base 102 in a suspended state, and the other locking piece 140B corresponding thereto is provided in the central region of the base body 101. The one locking piece (fixed piece) 140A can be engaged with or held from below. Here, the other locking piece 140B has a property as a movable piece configured to be movable in the left-right direction in FIG. 5A in accordance with the vertical movement of the mounting base 102, and its stop position is also set. It is configured to be freely adjustable from the outside. FIG. 5B shows a case where the mounting base 102 is positioned at the lowest position. In this case, in order to suppress the upward movement of the mounting base 102, one and the other locking pieces 140A and 140B are engaged.

Further, in the state shown in FIG. 5A, the contact surfaces constitute inclined surfaces, and at the same time, the other locking piece 140B is moved in the direction of the arrow S in the figure, whereby the mounting base 102 is moved. A stop position (in the height direction) is set.
That is, with respect to the mounting base locking mechanism 140, as described above, by operating the other movable locking 140B, mutual engagement / disengagement or setting of a stop position at a position below the mounting base 102 is set. Is configured to be possible.

  Further, as a technology related to the above-mentioned mounted unit lifting device, a technology is generally known in which a caster that holds an office device is exposed downward from the lower surface of the package using a cam mechanism when the office device is moved. (Patent Document 1). Specifically, this Patent Document 1 relates to a packaging body for storing office equipment, and the office equipment can be moved to the outside by rotating an eccentric cam provided at the bottom of the packaging box. It is raised to a position or lowered when stored, and is stored at the bottom of the packing box body, and has a configuration in which a plurality of eccentric cams are mounted in parallel at the bottom of the packing box body.

Further, as another technique related to the mounting unit lifting device, a plate pressing device in a corner shear which is a cutting machine is known (Patent Document 2). This Patent Document 2 relates to a corner shear that is a cutting machine, and includes an eccentric cam and a cam drive lever that rotationally drives the eccentric cam. Then, the rotational displacement of the eccentric cam is converted into the vertical movement of the plate pressing member that clamps the workpiece that is the object to be cut, thereby clamping or unclamping the workpiece during cutting.
JP-A-2005-239252 JP 10-156620 A

  However, in the related art shown in FIG. 5 above, when the mounting base 102 is moved up and down, the push-up support mechanisms 107 and 108 (auxiliary mechanisms) equipped with springs and the like are required. It is necessary, and in order to realize a stable lifting operation, it is necessary to lower the center of gravity of the lifting unit downward, so the place for holding the mounting base 102 must be installed in the upper part. For this reason, there is a disadvantage that the casing itself is widened and enlarged.

  A pair of left and right push-up support mechanisms 107, 108 (auxiliary mechanism) is attached, the rigidity of the casing is secured, and a locking mechanism when rising and a stopper mechanism that locks against a spring reaction force when descending Is required. In the conventional example of FIG. 5, the push-up support mechanisms 107 and 108 and the mounting base locking mechanism 140 function as the stopper mechanism, and by installing these, the entire apparatus is expensive. It has become. Furthermore, there has always been the trouble that the function of the spring is reduced due to a change in diameter and the auxiliary function due to breakage.

  Further, in Patent Document 1 described above, the package for storing office equipment is intended to raise the stored office equipment to a position where it can be conveyed to the outside. There has always been the annoyance of not functioning smoothly unless the points are always in uniform contact with the bottom of the office equipment.

Further, the above-mentioned Patent Document 2 includes an eccentric cam and a cam drive lever that rotationally drives the eccentric cam. This is because the eccentric displacement of the eccentric cam is a plate presser that clamps a workpiece that is a workpiece to be cut. The structure is converted into a vertical movement of the member, whereby the workpiece is clamped or unclamped during cutting.
Therefore, the eccentric cam and a cam drive lever in such Patent Document 2, in a two-quadrant constant to instrumented structure also biases the vertical movement of the plate pressing member for clamping the workpiece is a workpiece to be cut Yes. That is, this Patent Document 2 does not disclose any technology for moving up and down a mounting base on which a mounting unit is mounted and a technical idea for executing the same.

(Object of invention)
An object of the present invention is to improve the inconveniences of the related art, and in particular to provide a mounting unit lifting apparatus that can be downsized and is durable.

In order to achieve the above object, a mounting unit lifting apparatus according to the present invention includes a mounting base that is a vertically moving member on which a mounting unit is mounted, a base body that holds the mounting base, and the base body and the mounting base. a vertical movement guiding mechanism in which the mounting base is provided for guiding the movement in the vertical direction between the moving force in the up and down direction Shi pairs on the mounting base is equipped between the mounting base and the base body A mounting unit lifting device having a lever mechanism having a boosting function for energizing ,
The lever mechanism is a drive cam having an elliptical shape or an equivalent shape in which a rotary support shaft portion provided at one end portion is rotatably held on a side surface of the mounting base and an end surface of the other end portion is an action point. And a drive lever having one end integrally fixed to the drive cam and energizing rotational force to the drive cam,
Place the rotating end of the other end of the drive cam in contact with the base body at a position that presses the base body downward through a plane area previously formed on the base body,
The maximum ascending fixed position after the mounting base is driven up by the lever mechanism is set to a position beyond the top dead center of the cam profile of the elliptical drive cam provided in the lever mechanism. .

  Since the present invention is configured as described above, according to this, the mounting base on which the mounting unit is mounted can be easily moved up and down by the lever mechanism, and the vertical movement guide mechanism is effective for the vertical movement of the mounting base. It can be moved up and down smoothly in a stable state and is not equipped with a mechanism with a complicated structure, so it can be downsized, has few failures (diameter change), is durable, and overall It is possible to provide an unprecedented excellent mounting unit lifting device that can be obtained at low cost.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 shows a front view of a mounting unit lifting apparatus in the present embodiment. 2A shows a right side view of FIG. 1, and FIG. 2B shows a left side view along the line AA of FIG.

First, the overall contents of this embodiment will be described.
First, the mounting unit 6 is mounted in the mounting base 2. Eccentric cams (for example, drive cams having an elliptical shape or similar shape) 11 and 12 are rotatably attached to the left and right side surfaces of the mounting base 2 in FIG. Drive levers 13 and 14 are attached to the eccentric cams 11 and 12, respectively.

The drive levers 13 and 14 are coupled by a handle (a coupling rod described later) 30 so that the left and right eccentric cams 11 and 12 in FIG. 1 have the same phase.
The contact radius from the rotation center axis of the eccentric cams 11 and 12 and the distance to the handle 30 have a lever ratio of, for example, about 1: 5. For this reason, the lowered position of the mounting base 2 shown in FIG. In order to change from the state to the state of the ascending position in FIG. 3A, the force for pushing down the handle 30 (rotational driving force) is set to the lever ratio of the weight of the mounting unit 6 (in this case, about 1/5). I can do it.

  3A, the position is slightly beyond the top dead center of the eccentric cams 11 and 12, and a stopper 31 is provided to contact the drive levers 13 and 14 so that they no longer swing. The drive levers 13 and 14 come into contact with the stopper 31 and stop due to the weight of the mounting unit 6 due to the weight of the mounting unit 6, so that the mounting base 2 and the mounting unit 6 are in a stable state (see FIG. 4). .

This will be described in detail below.
1 and 2, reference numeral 1 indicates a base body, and reference numeral 2 indicates a mounting base which is a vertically moved member as described above. The mounting base 2 is disposed inside the base body 1 so as to be movable up and down while holding the mounting unit 6 detachably.
As shown in FIG. 1, the base main body 1 and the mounting base 2 are each formed in a U shape in the main body in this embodiment. Further, the mounting base 2 is disposed on the inner side of the base body 1 with both sides thereof spaced from the inner wall surface of the base body 1 by a gap K.

  Further, in the gap K between the left and right in FIG. 1 between the base body 1 and the mounting base 2 described above, vertical movement guide mechanisms 4 and 5 for guiding the vertical movement of the mounting base 2 are respectively provided. It is disguised. That is, the above-described vertical movement guide mechanisms 4 and 5 are arranged on two surfaces, that is, one side surface of the mounting base 2 and the other side surface located on the opposite side.

  As shown in FIGS. 1 to 2 (A) and 2 (B), the vertical movement guide mechanisms 4 and 5 are respectively provided with protrusion guides 4A and 5A provided on the mounting base 2 side along the vertical direction. It is configured by concave guides 4B and 5B provided on the mounting base 2 side while engaging with the guides 4A and 5A.

Here, the vertical movement guide mechanisms 4 and 5 are respectively arranged at positions symmetrical with respect to the center line L in FIG. 1 (front view), and each component is incorporated.
As a result, the mounting base 2 is guided by the vertical movement guide mechanisms 4 and 5 inside the base body 1 and allowed to move in a vertical direction with good balance.

The mounting base 2 described above is equipped with lever mechanisms 7 and 8 that urge the mounting base 2 to move in the direction along the vertical movement guide mechanisms 4 and 5.
The lever mechanisms 7 and 8 are respectively arranged on two surfaces, one side surface of the mounting base 2 described above and the other side surface located on the opposite side. In other words, in the present embodiment, the lever mechanisms 7 and 8 are respectively provided in the same two areas (areas of the gap K described above) as the areas where the above-described vertical movement guide mechanisms 4 and 5 are provided. ing.
Here, each of the lever mechanisms 7 and 8 is constituted by members that function in the same manner, and in the front view of FIG. The member is incorporated.

  Each of the lever mechanisms 7 and 8 has an elliptical shape, which is an eccentric cam having rotating support shaft portions 7a and 8a provided at one end portion and having the end surface of the other end portion as an action point side. The drive cams 11 and 12 having a shape similar to the above (hereinafter referred to as “elliptical drive cams”) 11 and 12 and one end of the elliptical drive cams 11 and 12 are fixed integrally to the rotating support shaft portions 7a and 8a. The drive cams 11 and 12 are configured by the drive levers 13 and 14 described above that urge the rotational force to the drive cams 11 and 12.

  Here, the pivot support shaft portions 7a and 8a are rotatably held at the respective upper end portions in FIG. 1 on both side surfaces of the mounting base 2, whereby the respective elliptical drive cams 11 and 12 are mounted on the mounting base. It is equipped so that it can rotate along each side of 2. In this case, the rotation support shaft portions 7 a and 8 a are provided at one focal position of the elliptical drive cams 11 and 12.

  In the present embodiment, the pivot support shaft portions 7a and 8a are implanted on the side surfaces 2A and 2B of the mounting base 2, and the elliptical drive cams 11 and 12 are connected to one end thereof (the elliptical cam). It is configured to be rotatably mounted through a shaft hole formed at one focal position. Here, when the drive cams 11 and 12 are equipped, the rotation support shaft portions 7a and 8a are implanted at one end of the elliptical drive cams 11 and 12, and the rotation of the elliptical drive cams 11 and 12 is rotated. The movable support shaft portions 7a and 8a are engaged with support shaft holding holes (not shown) provided on the respective side surfaces of the mounting base 2, and the mounting base 2 is connected to the elliptical drive cam 11 through the support shaft holding holes. , 12 may be configured to be rotatably held.

One end portion of the drive levers 13 and 14 for urging the elliptical drive cams 11 and 12 is integrally fixed to the elliptical drive cams 11 and 12 as described above.
Among the drive levers 13 and 14, the drive lever 13 has a central axis e as shown in FIGS. 2A and 4, in this embodiment, the long axis extension line f of the elliptical drive cam 11 described above. On the other hand, they are integrally fixed to each other at an angle α (in this embodiment, α is set to 45 °).

In this case, in the state of FIG. 2 (A), the mounting base 2 is set to a substantially maximum raised position with respect to the base body 1. Specifically, as shown in FIG. 4, when the extension line f of the long axis of the elliptical drive cam 11 coincides with the moving direction of the mounting base 2 (that is, when θ = 0), the maximum ascending position is reached. (Top dead center H of the elliptical drive cam 11).
The drive lever 14 and the elliptical drive cam 12 shown in FIG. 2B are also installed and integrated with each other in the same manner as in FIG.

  Further, the above-described elliptical drive cams 11 and 12 are provided at positions where the base main body 1 is pressed downward in FIG. 1 through a planar area previously formed on the base main body 1. The elliptical driving cams 11 and 12 are respectively engaged with the base body 1 described above in contact with the rotating end surface of the other end. Here, the upper end surface in FIG. 1 of the base body 1 is specified as a planar region 1A formed in advance in the base body 1 in this embodiment.

  Further, the driving levers 13 and 14 are connected at their rotating ends by a connecting rod 30. Accordingly, the drive levers 13 and 14 are simultaneously operated at the same timing, so that the stable operation of the lever mechanisms 7 and 8 and the smooth operation of the entire apparatus are realized.

Here, in FIG. 4, the distance between the rotational center position _{O K} point of action S of the elliptical driving cam 11, 12 as described above and _{L 1,} the length of the drive lever 13, 14 and _{L M} Then, The lever mechanisms 7 and 8 are theoretically provided with a boosting function of L _M / L ₁ time. Therefore, for example, when L _M / L ₁ = 5 and the external force P ₀ is imprinted on the handle 30 of the drive levers 13 and 14 as a drive force, for example, the point of action on the base body 1 from the elliptical drive cam 11 The pressing force P ₁ acting on S is P ₁ = 5P ₀ .

On the other hand, the direction of the pressing force P ₁ applied from the elliptical drive cam 11 to the planar region ₁ A of the base body 1 has an inclination angle β with respect to the surface of the base body 1. For this reason, the effective pressing force P ₀₁ that pushes the planar region 1A of the base body 1 downward is P ₀₁ = P ₁ sin β (= 5P ₀ sin β). When this is larger than the total weight of the mounting base 6 and the mounting base 2, the mounting base 2 can be transferred upward. The same applies to the elliptical drive cam 12 side.

On the other hand, the external force component P ₀₂ along the planar region 1A of the base body 1 is P ₀₂ = P ₁ cos β, which is an external force that opposes the frictional force. This is a considerably large value, and the smooth sliding operation of the elliptical drive cams 11 and 12 is ensured by this _P02 .
In this case, the frictional force generated between the upper end surface 1A in FIG. 1 of the base body 1 and the action point S of the elliptical drive cams 11 and 12 in contact therewith is a negative element when viewed from the lever mechanisms 7 and 8. Acts as (resistance). For this reason, it is desirable that the frictional force at the contact position is small.

  Further, in the present embodiment, when the mounting base 2 is driven to rise by the lever mechanisms 7 and 8 described above, the maximum lift fixing position thereafter is an ellipse provided in the lever mechanisms 7 and 8 as shown in FIG. The cam profiles of the cam drive cams 11 and 12 were set at positions exceeding the top dead center H. As a result, when stabilizing the maximum ascending fixed position, in the present embodiment, the fixed position due to the unstable top dead center H, which is rotated regardless of which external force is applied, is avoided. As a result, it is possible to secure a stable maximum lift fixed position.

[Description of operation]
Next, the overall operation of the above embodiment will be described.
First, in the state of FIG. 1 and FIG. 2A, the mounting base 2 is set to a substantially maximum raised position with respect to the base body 1 as described above.

Next, when the handle (connecting rod) 30 is rotated in the direction of the arrow A in FIGS. 3A and 4, the mounting base 2 until the elliptical drive cams 11 and 12 pass through the top dead center H at the time of activation. Is slightly raised once (FIG. 4, symbol a ₀ ). Thereafter, when the rotational ends of the elliptical drive cams 11 and 12 pass through the top dead center H, the mounting base 2 starts to move downward. Then, the mounting base 2 is lowered under the control of the cam profile of the elliptical drive cams 11 and 12 (FIG. 4, symbol a ₁ ), and comes into contact with the inner bottom surface 1Z of the base body 1 to perform its lowering operation. Stop (see FIG. 3B).

  During this time, the mounting base 2 is guided by the vertical movement guide mechanisms 4 and 5 provided between the inner wall surface of the base body 1 and smoothly performs a lowering operation in a stable state. Further, when the lowering operation is performed on the mounting base 2, an abrupt lowering force is applied to the handle (connecting rod) 30 due to the weight of the mounting base 2 and the mounting unit 6 mounted therein. For smooth operation, it is important to operate the handle (connection rod) 30 so as to brake (press from above) the (connection rod) 30.

Next, the case where the mounting base 2 is raised from the state of FIG.
First, the handle (connection rod) 30 is rotated in the direction of arrow B (downward direction) from the state of FIG. In this case, since the mounting base 2 on which the mounting unit 6 is mounted is raised, all the weights of the mounting unit 6 and the mounting base 2 are applied to the elliptical drive cams 11 and 12.

  On the other hand, in the present embodiment, the boosting function of the lever mechanisms 7 and 8 is effectively operated. For example, if the lever mechanism 7 or 8 is provided with a boosting function of 5 times, the handle (connecting rod) ) When viewed from the 30 side, the labor is reduced to the extent that the weight of the mounting unit 6 and the mounting base 2 is increased to 1/5 of the total weight. During this time, the mounting base 2 is smoothly guided in a descending manner in a stable state by being guided by the vertical movement guide mechanisms 4, 5 provided between the inner surface of the base body 1.

  As described above, in this embodiment, the mounting unit lifting device is a mounting in which a pair of drive cams 11 and 12 whose peripheral outline and rotation center are eccentric, and the drive cams 11 and 12 are rotatably attached to the left and right side surfaces. The base 2, the drive levers 13 and 14 connected to the pair of drive cams 11 and 12 and rotated while maintaining the phase of the left and right cams sufficiently longer than the contact radius of the cams, and the mounting base 2 in the vertical direction Mounted in accordance with the increase or decrease of the contact radius of the cams by rotating the drive cams 11 and 12 in contact with the outer periphery of the drive cams 11 and 12 A base body 1 having a portion in contact with the drive cams 11 and 12 and connected to the mounting base 2 through vertical movement guide mechanisms 4 and 5 so that the base 2 is raised and lowered is configured. .

  For this reason, according to this structure, a booster mechanism is comprised by the ratio of the contact radius of the drive cams 11 and 12 and the lever length of the drive levers 13 and 14, and the force (operation force) to raise / lower the mounting unit 2 up and down is reduced. It is possible to eliminate the need for an auxiliary mechanism using a spring. Moreover, if the operating range of the drive levers 13 and 14 is limited by setting the position passing through the top dead center of the drive cams 11 and 12 as the fixed fixed position, a stable state can be maintained due to the weight of the mounting unit 6. Since the configuration has been simplified, it is possible to provide a mounted unit lifting device that is small and has little secular change.

Here, in the above-described embodiment, the case where an elliptical drive cam or a drive cam having a shape similar to this is used as the drive cams 11 and 12 is exemplified. It may be a shape.
In addition, the drive cams 11 and 12 and the drive levers 13 and 14 are illustrated as being integrated. However, the drive cams 13 and 14 are directly processed at the tip portions or the equivalent. There may be.

  Furthermore, in the above embodiment, the case where the mounting unit 6 is moved up and down as described above is illustrated as a case of linear movement in the vertical direction along the base body 1 (parallel movement). Even when the mounting unit 6 is configured to swing and move around the rotation shaft provided in parallel with the rotation shafts of the drive cams 11 and 12, the lever mechanisms 7 and 8 are similarly applied, and the same effect is obtained. can get.

[Effect of the embodiment]
Since the present embodiment is configured and functions as described above, according to this, the mounting base 2 on which the mounting unit 6 is mounted can be easily moved up and down by the lever mechanisms 7 and 8. When moving, the vertical movement guide mechanisms 4 and 5 function effectively, can be moved up and down smoothly in a stable state, and can be arbitrarily stopped by operating the lever mechanisms 7 and 8 as described above. Unlike the related art, since it is not equipped with a mechanism having a complicated structure, it is possible to obtain an excellent mounted unit lifting mechanism that can be reduced in size and reduced over time and can be obtained at a low cost as a whole.

  When carrying out maintenance such as exchanging consumables and removing jams in a chassis equipped with a weight unit such as a printer or cash processing machine in an information processing device for the financial industry, it is necessary to move the mounted unit up and down. If.

It is a front view showing one embodiment of the present invention. 2A is a right side view of FIG. 1, and FIG. 2B is a right side view taken along the line AA of FIG. FIG. 3A is a diagram illustrating the operation of the embodiment disclosed in FIG. 1, FIG. 3A is an explanatory diagram illustrating a state after the mounting base 2 is raised, and FIG. 2B is a state when the mounting base 2 is lowered. It is explanatory drawing shown. FIG. 4 is an explanatory diagram showing an operation state of the drive cam in the state of FIG. 3A in the embodiment disclosed in FIG. 1. FIG. 5A is an explanatory diagram showing an example of a related art that is conventionally known, FIG. 5A is an explanatory diagram showing a state when the mounting base is raised, and FIG. 5B is a state when the mounting base is lowered. It is explanatory drawing shown.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Base main body 1A Plane area | region 2 Mount base 4,5 Vertical motion guide mechanism 4A, 5A Projection guide 4B, 5B Concave guide 6 Mount unit 7, 8 Lever mechanism 11, 12 Drive cam (eccentric cam, elliptic drive cam)
13, 14 Drive lever

Claims (7)

Guiding a mounting base which is an object to be vertically movable mounted with mounting unit, and a base body for holding the mounting base, from disposed between with the base body of the mounting base the mounting base is moved in the vertical direction a vertical movement guiding mechanism, the mounting base and equipped with mounting units lift and a lever mechanism having a booster function for urging the moving force in the up and down direction Shi pairs on the mounting base between the base body A device ,
The lever mechanism is a drive cam having an elliptical shape or an equivalent shape in which a rotary support shaft portion provided at one end portion is rotatably held on a side surface of the mounting base and an end surface of the other end portion is an action point. And a drive lever having one end integrally fixed to the drive cam and energizing rotational force to the drive cam,
Place the rotating end of the other end of the drive cam in contact with the base body at a position that presses the base body downward through a plane area previously formed on the base body,
The maximum ascending fixed position after the mounting base is driven up by the lever mechanism is set to a position beyond the top dead center of the cam profile of the elliptical drive cam provided in the lever mechanism. Mounted unit lifting device. In the mounting unit lifting apparatus according to claim 1,
The mounting unit elevating device, wherein the vertical movement guide mechanism is disposed on each of two surfaces, one side surface of the mounting base and the other side surface opposite to the mounting base. In the mounting unit lifting apparatus according to claim 2,
The mounting unit characterized in that the vertical movement guide mechanism is constituted by a ridge guide provided on the mounting base side and a concave guide provided on the mounting base side while engaging with the ridge guide. lift device. In the mounting unit lifting apparatus according to claim 1 or 3,
The mounting unit lifting device according to claim 1, wherein the lever mechanism is disposed on each of two surfaces, one side surface of the mounting base and the other side surface on the opposite side. In the mounting unit lifting apparatus according to claim 1,
Equipped with the vertical movement guide mechanism on two sides of one side of the mounting base and the other side located on the opposite side,
A mounting unit lifting device characterized in that the lever mechanism is provided on the same surface as each side surface of the mounting base provided with the vertical movement guide mechanism. In the mounting unit lifting apparatus according to claim 1 ,
A mounting unit elevating device characterized in that a planar region previously formed on the base body is used as an upper end surface of the base body. In the mounting unit lifting apparatus according to claim 1 ,
A mounting unit elevating device comprising a connecting rod between the one lever mechanism and the other lever mechanism for simultaneously operating the lever mechanisms at the same timing.

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