JP6283567B2 - Holding device - Google Patents

Description

  The present invention relates to a holding device, and more particularly to a holding device that holds a chip-like storage member or the like in which a sample is stored by pressing it in a predetermined position.

  The chip-like accommodation member that contains the sample to be analyzed is held at a predetermined position of the analyzer when set in the analyzer. Devices that hold a chip-shaped housing member at a predetermined position of an analyzer have been proposed with various mechanisms.

  Patent Document 1 proposes several types of fixing devices. Note that the chip-shaped housing member held by the fixing device is used when performing microchemical analysis for performing chemical operations such as sample pretreatment, reaction, separation, and detection.

  One fixing device proposed in Patent Document 1 (hereinafter referred to as “first fixing device”) extends from the outside on both sides of the chip toward the side of the chip, on which the chip is placed, It is comprised by the press plate which presses down the both sides of this chip | tip, and the some screw | thread which applies a pressure to this press plate. Another fixing device proposed in Patent Document 1 (hereinafter referred to as “second fixing device”) includes a table on which a chip is placed and a piston device that presses both side portions of the chip. The piston device is operated by, for example, hydraulic pressure, hydraulic pressure or pneumatic pressure. The second fixing device is configured such that the piston device presses the tip from directly above the tip-shaped housing member.

International Publication No. WO2005 / 026742

  However, the first fixing device proposed in Patent Document 1 needs to tighten a plurality of screws when fixing the chip to the base, and loosens the plurality of screws when removing the chip from the base. It is necessary. Therefore, the structure of the fixing device is troublesome for fixing and removing the chip from the table.

  On the other hand, since the 2nd fixing device proposed by patent documents 1 uses a piston device, it is easy to fix a tip-like accommodation member and release a tip-like accommodation member fixation by operating a piston device. Can be done.

  However, as in the case of the second fixing device, the structure in which the chip is pressed from directly above the chip has a component of the fixing device above the chip. Therefore, the component of the fixing device blocks the worker's view. End up. Therefore, when the chip is set at a predetermined position, the components of the fixing device existing above the chip become an obstacle to work.

  The present invention has been made to solve the above-described problems, and its purpose is to fix an object in a predetermined position and to release the fixation only by performing a simple operation. An object of the present invention is to provide a holding device that can be used and does not block the operator's view.

  The holding device according to the present invention for solving the above-described problems extends from the back side of the object to be held toward the object, a pressing arm that presses the object, and presses the pressing arm against the object A guide mechanism that guides in a direction and a direction away from the object, wherein the guide mechanism includes a moving unit to which the pressing arm is attached, a guide rail that guides the moving unit, and the moving unit. A movement direction restriction mechanism that restricts a movement direction with respect to the guide rail, and the movement direction restriction mechanism allows the movement unit to move only in a direction in which the object is pressed and is separated from the object. A lock mechanism that prevents the moving unit from moving in a direction to be moved, and a release mechanism that releases the lock mechanism, and the guide rail is tilted. Therefore, the horizontal distance between the end in the direction away from the object and the object is farther than the horizontal distance between the end in the direction of pressing against the object and the object. And

  According to the present invention, when the guide rail is tilted, the horizontal distance between the end in the direction away from the object and the object is the horizontal distance between the end in the direction of pressing against the object and the object. It is comprised so that it may become longer. Therefore, since there are no components of the holding device directly above the object to be held, a wide field of view of the area where the object is held can be secured. In addition, since the moving direction limiting mechanism having the above-described configuration is provided, the holding device can maintain the state in which the object is held and can easily release the holding.

  In the holding device according to the present invention, the release mechanism may include a release lever, and the release lever may be configured to release the lock mechanism when an external force is applied in a direction away from the object.

  According to the present invention, when the holding of the object is released, the direction in which the moving unit is separated from the object matches the direction in which the force is applied to the release lever to release the lock mechanism. The person can release the lock mechanism and move the moving body with one hand.

  In the holding device according to the present invention, the moving portion is attached to the block directly or indirectly to a block attached to the guide rail so as to be slidable with respect to the guide rail, and to a relatively upper portion of the block. The pressing arm is a relatively lower part of the block and is directly or indirectly on the block at a position different from the part where the operating part is attached to the block. It can be configured to be attached.

  According to the present invention, the operation unit that applies a force to the moving body to push down the moving body and the pressing arm that presses and holds the object are present at different positions, so that the force applied to the operating unit is Direct transmission to the pressing arm can be prevented. As a result, it is possible to prevent the object to be held from being deformed or damaged.

  In the holding device according to the present invention, the pressing arm includes a first arm fixed to the moving unit and a second arm attached to the first arm, and the second arm is in a longitudinal direction thereof. It can comprise so that it may attach to the said 1st arm in one place.

  According to this invention, since the 2nd arm can move minutely in the longitudinal direction, the adhesiveness with respect to the target object of a pressing arm can be made high. Further, since the tip of the second arm can be moved minutely with the position attached to the first arm as a fulcrum, the object can be moved without changing the force for pressing the object according to the thickness of the object. It can be pressed with the same force regardless of the thickness.

  According to the holding device according to the present invention, it is possible to fix an object in a predetermined position and to release the fixation only by performing a simple operation, and without blocking the operator's view. The object can be easily set at a predetermined position.

It is a perspective view of the analyzer with which the holding device concerning the present invention was attached. It is a perspective view of the holding device concerning the present invention. It is a side view of the holding device concerning the present invention. It is explanatory drawing which showed the holding | maintenance apparatus which concerns on this invention in model, and was used in order to demonstrate the effect | action of a holding | maintenance apparatus. It is explanatory drawing which showed the holding | maintenance apparatus which concerns on this invention in model, and was used in order to demonstrate the effect | action of a holding | maintenance apparatus. It is explanatory drawing which showed the holding | maintenance apparatus which concerns on this invention in model, and was used in order to demonstrate the effect | action of a holding | maintenance apparatus.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. The technical scope of the present invention is not limited only to the following description and drawings.

[Basic configuration of holding device]
As shown in FIGS. 1 to 3, the holding device 10 according to the present invention extends from the back side of the object T to be held to the object T side and presses the object T, and the pressing arm 70. And a guide mechanism 11 for guiding in a direction in which the object is pressed against the object T and in a direction away from the object.

  The guide mechanism 11 includes moving parts 15 and 25 to which the pressing arm 70 is attached, guide rails 12 and 22 that guide the moving parts 15 and 25, and a moving direction of the moving parts 15 and 25 with respect to the guide rails 12 and 22. And a moving direction limiting mechanism for limiting. The movement direction limiting mechanism allows the moving parts 15 and 25 to move only in the direction in which the object T is pressed, and prevents the moving parts 15 and 25 from moving in a direction away from the object T. A mechanism and a release mechanism for releasing the lock mechanism. When the guide rails 12 and 22 are inclined, the horizontal distance between the end in the direction away from the object T and the object T is the horizontal distance between the end in the direction in which the guide T is pressed against the object T and the object T. It is comprised so that it may become longer than the distance of a direction.

  This holding device 10 can fix the object T in a predetermined position and release the fixation only by performing a simple operation, and does not obstruct the operator's field of view and can easily There is a specific effect that the object T can be set at a predetermined position.

  Hereinafter, each configuration of the holding device 10 according to the present invention will be specifically described with reference to an example in which the holding device 10 is applied to the analyzer 1.

[Analyzer provided with holding device]
First, with reference to FIG. 1, the outline | summary of the analyzer 1 provided with the holding | maintenance apparatus 10 is demonstrated. Hereinafter, a case where the holding target T is a chip-like accommodation member (hereinafter simply referred to as “accommodation member”) that accommodates the sample will be described as an example.

  The analysis apparatus 1 is an apparatus for performing chemical analysis of a sample such as blood stored in the storage member T. As shown in FIG. 1, the analyzer 1 includes a housing 2 that forms an outer shell, and a cover 5 that covers an upper portion of the housing 2.

  The upper part of the housing 2 in the analyzer 1 is an area in which the accommodation member T in which the sample is accommodated is held. The holding portion 90 in which the accommodation member T is held and the accommodation member T placed in the holding portion 90 are arranged. And a holding device 10 for pressing and holding. The upper part of the housing 2 includes a base 7 in the right half of FIG. 1, and the holding unit 90 and the holding device 10 are provided on the base 7. In FIG. 1, the holding unit 90 is arranged on the front side of the analyzer 1, and the holding device 10 is arranged on the back side of the analyzer 1. The area 6 on the right side of the housing 2 is an area for accommodating a tank (not shown). The cover 5 is formed of a transparent member and opens and closes the upper part of the housing 2.

  The holding unit 90 includes a positioning mechanism for placing the housing member T at a predetermined position. This positioning mechanism is constituted by a plurality of positioning members 91 arranged at positions corresponding to the outline of the accommodating member T to be placed. Moreover, this holding | maintenance part 90 arrange | positions the accommodating member T inside the several positioning member 91, and the accommodating member T is arrange | positioned in a predetermined position.

  The holding device 10 is disposed on the back side of the analyzer 1 with respect to the holding unit 90 where the housing member T is placed. Details of each component of the analyzer 1 will be described later.

  The housing 2 includes a drive source for driving the analyzer 1, a control unit, a tank in which a liquid used for sample analysis is stored, a pump for sending the liquid in the tank to the storage member T, A hose connecting the housing member T, a valve connected to the hose between the pump and the housing member T, and the like are housed. However, none of these components housed in the lower part of the housing 2 are shown in FIG. The housing 2 includes a plurality of buttons 4 and a dial 5 for operating the analyzer 1 on the front surface.

[Specific configuration of holding device]
Each configuration of the holding device 10 will be specifically described. As shown in FIGS. 2 and 3, the holding device 10 includes a pressing arm 70 that presses the holding member T held, a direction in which the pressing arm 70 is pressed against the holding member T, and a direction in which the holding member T is pulled away from the holding member T. And a guide mechanism 11 for guiding the vehicle. Hereinafter, each of these components will be described in the order of the guide mechanism 11 and the pressing arm 70.

<Guiding mechanism>
The guide mechanism 11 includes two guide rails 12 and 22 and moving portions 15 and 25 that hold the guide rails 12 and 22 and move in a direction in which the guide rails 12 and 22 extend.

(Guide rail)
The two guide rails 12 and 22 are constituted by a first guide rail 12 and a second guide rail 22. As shown in FIG. 2, the first guide rail 12 is composed of an elongated cylindrical member. On the other hand, the 2nd guide rail 22 is comprised by the elongate square bar, as shown in FIG. The first guide rail 12 and the second guide rail 22 are inclined obliquely. The end side of each guide rail 12, 22 in the direction in which the housing member T is pressed is disposed at a position relatively close to the housing member T in the horizontal direction, and the end side in the direction away from the housing member T is horizontal. In the direction, it is arranged at a position relatively far from the housing member T. In other words, the lower portion of each guide rail 12, 22 is disposed on the front side of the analyzer 1, and the upper portion thereof is disposed on the back side of the analyzer 1.

  The lower portion of the first guide rail 12 is maintained in an inclined state by being attached to the support block 13. The support block 13 is further placed on a plate-like support plate 30, and is bolted to the base 7 via the support plate 30 and fixed to the base 7. Further, the first guide rail 12 is provided with a stopper 14 at its upper end. The stopper 14 prevents the moving parts 15 and 25 moving along the first guide rail 12 and the second guide rail 22 from slipping out from the upper end of the first guide rail 12.

  As shown in FIG. 3, the second guide rail 22 is inclined obliquely by being fixed to the inclined surface 23a of the support base 23 having the inclined surface 23a. The inclination angle of the inclined surface 23 a of the support base 23 coincides with the inclination angle of the first guide rail 12. Therefore, the inclination angle of the second guide rail 22 fixed to the inclined surface 23 a of the support base 23 and the inclination angle of the first guide rail 12 coincide. The support base 23 is placed on the support plate 30 and is fixed to the base 7 by bolting the base 7 via the support plate 30. The support base 23 includes a stopper 24 at the upper end thereof. The stopper 24 prevents the moving parts 15 and 25 that move along the first guide rail 12 and the second guide rail 22 from coming out of the second guide rail 22.

  In addition, although the inclination angle of the 1st guide rail 12 and the 2nd guide rail is not specifically limited, It is good to set it as the range of 45 degree | times or more and 60 degrees or less.

(Moving part)
The moving parts 15 and 25 are blocks 15 and 25 attached to the guide rails 12 and 22 so as to be slidable with respect to the guide rails 12 and 22, and an operation part attached to a relatively upper part of the blocks 15 and 25. 50. Specifically, the moving parts 15 and 25 hold the first guide rail 12, hold the first moving block 15 that moves along the first guide rail 12, and the second draft rail, and this second A second moving block that moves along the guide rail 22, a connecting body 40 that connects the first moving block 15 and the second moving block 25, and attached to the connecting body 40, the moving parts 15 and 25 are pushed down. And an operation unit 50 that is sometimes used.

  The first moving block 15 has a rectangular parallelepiped shape, and the first guide rail 12 is passed through the center of the first moving block 15. In the example shown in FIG. 2, the cross section of the first moving block 15 is a square or a rectangle close to a square. The first moving block 15 reciprocates in the direction in which the first guide rail 12 passed through the center extends.

  The first moving block 15 includes a moving direction limiting mechanism 20 that limits the moving direction of the moving units 15 and 25 relative to the guide rails 12 and 22. The movement direction limiting mechanism 20 includes a lock mechanism that allows the moving units 15 and 25 to move only in one direction, and a release mechanism that releases the lock mechanism.

  The locking mechanism allows the moving parts 15 and 25 to move only in the direction in which the housing member T is pressed, and prevents the moving parts 15 and 25 from moving in a direction away from the housing member T. Note that the lock mechanism is built in the first moving block 15 and is not shown in FIGS. The release mechanism includes a release lever 21 projecting forward from the first block below the first moving block 15. The release lever 21 releases the lock mechanism when an external force is applied in a direction away from the housing member T.

  The second moving block 25 is a rectangular parallelepiped member having a rectangular shape with a flat cross section. The second moving block 25 has a groove on the back surface facing the inclined surface 23a of the support base 23, and holds the second guide rail 22 by fitting the second guide rail 22 into the groove. It is configured to move along the second guide rail 22.

  The connecting body 40 is bridged between the first moving block 15 and the second moving block 25, and a bridging part 41 that couples the two and a main body part 42 that is overlapped on the surface of the second moving block 25. And a projecting portion 43 projecting from the lower end of the main body portion 42 toward the housing member T side.

  The bridge portion 41 is bridged between the upper part of the first moving block 15 and the upper part of the second moving block 25. The bridging portion 41 includes a plurality of holes penetrating in the plate thickness direction. The bridging portion 41 has bolts passed through these holes, and the bolts passed through the holes are tightened into the first moving block 15 and the second moving block 25, whereby the first moving block 15 and the second moving block 25. The main body 42 is superimposed on the surface of the second moving block 25 and is bolted to the surface of the second moving block 25. The protruding portion 43 protrudes from the lower end portion of the main body portion 42 toward the housing member T side. In other words, the protruding portion 43 protrudes from the lower end portion of the main body portion 42 toward the front side of the analyzer 1. The protrusion 43 is a part to which a pressing arm 70 described later is attached.

  The operation unit 50 is attached to the upper part of the coupling body 40. The operation unit 50 includes an attached portion 51 attached to the bridging portion 41 of the connection body 40 and an arm portion 52 that extends from the connection body 40 toward the housing member T side. The attached portion 51 includes a hole penetrating the plate thickness direction. These holes correspond to the positions of the holes provided in the bridging portion 41 of the connection body 40. The operation unit 50 is attached as follows. 1stly, the position of the hole of the to-be-attached part 51 and the position of the hole of the bridging part 41 of the connection body 40 are corresponded, and the to-be-attached part 51 and the bridging part 41 are overlapped. Secondly, the attached portion 51 and the bridging portion 41 are overlapped with the first moving block 15 and the second moving block 25. Thirdly, a bolt is inserted from the attached portion 51, the bolt is tightened into the first moving block 15 and the second moving block 25, and the operation portion 50 is attached to the coupling body 40.

  The arm portion 52 is parallel to the protruding portion 43 of the connection body 40 in a state where it is attached to the bridging portion 41 of the connection body 40. The arm portion 52 is used when the operator presses the moving portions 15 and 25 downward by pressing them with hands.

  The protruding portion 43 includes a cover 60 that covers a space formed between the operation portion 50 and the protruding portion 43. The cover 60 includes a side cover 61 that extends from the side edge of the protrusion 43 toward the operation unit 50, and a front cover 62 that is attached to the tip of the side cover 61.

  In this embodiment, the case where the operation unit 50 is indirectly attached to the moving blocks 15 and 25 via the coupling body 40 is described as an example. It can also be configured to be attached to 25.

(Pressing arm)
The pressing arm 70 is attached to the protruding portion 43 of the coupling body 40, and extends from the back side to the housing member T side than the housing member T to be held. The pressing arm 70 includes a first arm 71 fixed to the moving parts 15 and 25 and a second arm 72 attached to the first arm 71.

  The first arm 71 is made of a flat block material whose width is the same as the width of the protrusion 43 of the coupling body 40. The first arm 71 is attached so that the tip of the first arm 71 protrudes from the tip of the protrusion 43 toward the housing member T by being bolted to the back surface of the protrusion 43.

  The second arm 72 includes an arm main body 73 and a pressing plate 76 attached to the lower surface of the arm main body 73. The arm main body 73 includes a horizontal portion 74 and a vertical portion 75 extending upward from the horizontal portion 74 at one end in the width direction of the horizontal portion 74. In the arm main body 73, the vertical portion 75 maintains the strength and rigidity of the arm main body 73, and the arm main body 73 is prevented from being deformed. The holding plate 76 is attached to the horizontal portion 74 so as to overlap the lower surface of the horizontal portion 74 constituting the arm main body portion 73. The pressing plate 76 is a member that presses the upper surface of the housing member T.

  The arm body 73 and the pressing plate 76 have a certain width, and when the pressing plate 76 is pressed against the housing member T, the force that presses the housing member T is dispersed. Therefore, the pressing force is not concentrated only at one place of the housing member T, and the housing member T is effectively prevented from being deformed when the housing member T is pressed.

  The second arm 72 having the above-described configuration is attached to the first arm 71 at one place in the longitudinal direction. Specifically, the horizontal portion 74 constituting the arm main body 73 and the tip of the first arm 71 are arranged in the longitudinal center of the arm main body 73 in the width direction of the arm main body 73. The second arm 72 is attached to the first arm 71 by being connected by the support 80.

  Since only the center in the longitudinal direction of the second arm 72 is attached to the first arm 71 by the support column 80, the second arm 72 can move minutely in the longitudinal direction. Therefore, when the accommodating member T is pressed, the adhesion to the accommodating member T can be increased.

  Further, the second arm 72 has a tip slightly moved up and down with the two columns 80 as fulcrums. Therefore, when the holding members T having different thicknesses are replaced and held, it is not necessary to change the pressing force according to the thickness of the receiving member T, and the receiving members T can be pressed with the same force. Even when the housing member T is pressed with a force larger than a predetermined force necessary to hold the housing member T, the tip of the second arm 72 slightly moves upward with the two columns 80 as fulcrums. In addition, the housing member T is prevented from being pressed with an excessively large force.

  In this embodiment, the case where the pressing arm 70 is indirectly attached to the moving blocks 15 and 25 via the coupling body 40 is described as an example, but the pressing arm 70 is directly connected to the moving blocks 15 and 25. It can also be configured to be attached to 25.

[Operation of holding device]
The operation of the holding device 10 having the above configuration will be described with reference to FIGS. 4 to 6 show the holding device 10 as a model for convenience of explanation. 4 to 6 show only the first guide rail 12 as a model of the first guide rail 12 and the second guide rail 22, and the first guide rail is the first guide rail 12 and the second guide rail. This will be described as a representative of 22. However, as described above, the holding device 10 includes the first guide rail 12 and the second guide rail. The moving units 15 and 25 will be described with the first moving block 15 as a representative of the moving units 15 and 25.

  In the holding device 10, the first guide rail 12 is inclined obliquely, and no component of the holding device 10 exists immediately above the holding portion 90 where the housing member T is held. Therefore, when positioning the accommodating member T in the holding part 90, the field of view of the holding part 90 is ensured, and the positioning operation can be easily performed.

  When the holding member T is held by the holding unit 90 of the analyzer 1 with the holding device 10, the operating unit 50 is in a state where the moving unit 15 is positioned on the upper side of the first guide rail 12 as shown in FIG. A downward force is applied to the arm portion 52 by hand. When a downward force is applied to the arm unit 52 of the operation unit 50, the moving unit 15 moves along the first guide rail 12 and is pushed down to the lower portion of the first guide rail 12. When the moving unit 15 is pushed down, the distal end of the second arm 72 constituting the pressing arm 70 presses the housing member T as shown in FIG. As described above, the first moving block 15 that moves the first guide rail 12 includes the moving direction limiting mechanism 20 that limits the moving direction with respect to the first guide rail 12. The moving direction limiting mechanism 20 allows the moving unit 15 to move only in the direction in which the moving unit 15 presses the housing member T, and prevents the moving unit 15 from moving in a direction away from the housing member T. . Therefore, the state in which the moving unit 15 has moved to a position where the pressing arm 70 presses the housing member T is maintained by the movement direction limiting mechanism 20, and the housing member T is held at a predetermined position.

  In the holding device 10, the operation unit 50 is attached to the upper part of the moving unit 15, while the pressing arm 70 is attached to the lower part of the moving unit 15. As described above, the operation unit 50 to which a force is applied to the moving unit 15 and the pressing arm 70 for pressing the housing member T are provided at different positions. Therefore, even when a force larger than a predetermined force necessary for holding the storage member T, for example, a force that the arm portion 52 of the operation portion 50 is bent is applied to the operation portion 50, the force is applied to the moving portion 15. The force is prevented from being directly transmitted to the pressing arm 70.

  Further, in this holding device 10, the pressing arm 70 is configured as described above. Therefore, as shown in FIG. 5, when the moving unit 15 is pushed down and the pressing arm 70 presses the housing member T, the tip of the first arm 71 moves slightly up and down with the position of the column 80 as a fulcrum. . Even when the holding members T to be held have different thicknesses, it is not necessary to change the force for pushing down the moving portion 15 for each holding member T, and the holding member T can be held by pushing down with the same force. Further, since the second arm 72 is connected to the first arm 71 at only one central position in the longitudinal direction, the second arm 72 moves in the front-rear direction (longitudinal direction of the second arm). For this reason, the adhesion between the second arm 72 and the housing member T is improved. Further, since the tip of the first arm 71 moves slightly up and down with the position of the support column 80 as a fulcrum, even when the housing member T is pressed with a force exceeding the force necessary for holding the housing member T, the first arm 71 It can prevent that the front-end | tip of 71 moves upwards and presses the accommodating member T with an excessive force.

  When releasing the holding of the storage member T, as shown in FIG. 6, the release lever 21 is moved in the direction away from the storage member T, and the lock mechanism included in the movement direction limiting mechanism 20 is released. The release lever 21 is configured so that the direction in which the moving unit is pulled from the object coincides with the direction in which a force is applied to the release lever to release the lock mechanism. The lock mechanism can be released and the moving body can be moved. When the locking mechanism is released, the moving unit 15 can move in a direction away from the housing member T, and the moving member 15 is raised along the first guide rail 12 to hold the housing member T. Is released.

  The case where the guide mechanism is configured by the two guide rails 12 and 22 and the moving blocks 15 and 25 has been described above as an example. However, the guide mechanism can be composed of one guide rail and a moving block, or can be composed of three or more guide rails and a moving block.

  Moreover, although the case where the holding device 10 was attached to the analyzer 1 has been described as an example, the holding device 10 can also be used by being attached to a microscope or the like. Moreover, although the case where the target object to hold | maintain was a chip-shaped accommodation member was demonstrated to the example, the target object to hold | maintain is not limited to a chip-shaped accommodation member. For example, the holding device 1 can also be used when holding a thin member or a member having a variation in thickness, such as paper or film.

DESCRIPTION OF SYMBOLS 1 Analyzer 7 Base 10 Holding apparatus 11 Guide mechanism 12 1st guide rail 13 Support block 14 Stopper 15 1st moving block 22 2nd guide rail 23 Support stand 23a Inclined surface 24 Stopper 25 2nd moving block 30 Support plate 40 Connection body 41 Bridging section 42 Body section 43 Projection section 50 Operation section 51 Mounted section 52 Arm section 60 Cover 70 Pressing arm 71 First arm 72 Second arm 73 Arm body section 74 Horizontal section 75 Vertical section 76 Presser plate 80 Support 90 Portion 91 Positioning member T Chip-shaped accommodation member (object)

Claims (4)

A pressing arm that extends from the back side to the object side relative to the object to be held and presses the object;
A guide mechanism for guiding the pressing arm in a direction in which the pressing arm is pressed against the object and a direction in which the pressing arm is pulled away from the object,
The guide mechanism includes a moving unit to which the pressing arm is attached, a guide rail that guides the moving unit, and a moving direction limiting mechanism that limits a moving direction of the moving unit with respect to the guide rail,
The movement direction limiting mechanism allows the moving unit to move only in a direction in which the object is pressed, and prevents the moving unit from moving in a direction away from the object; A release mechanism for releasing the lock mechanism,
The guide rail is inclined so that the horizontal distance between the end in the direction away from the object and the object is the horizontal distance between the end in the direction of pressing the object and the object in the horizontal direction. A holding device characterized in that it is also long. The release mechanism includes a release lever;
The holding device according to claim 1, wherein the release lever releases the lock mechanism when an external force is applied in a direction away from the object. The moving unit includes a block that is slidably attached to the guide rail with respect to the guide rail, and an operation unit that is directly or indirectly attached to the block at a relatively upper portion of the block. ,
The pressing arm is a relatively lower portion of the block, and is directly or indirectly attached to the block at a position different from a portion where the operation unit is attached to the block. The holding device according to 2. The pressing arm has a first arm fixed to the moving part, and a second arm attached to the first arm,
The holding device according to any one of claims 1 to 3, wherein the second arm is attached to the first arm at one place in a longitudinal direction thereof.

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