JP2022075861A - Sheet storage device and image forming apparatus - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a sheet storage device where a loud collision sound, breakage and the like do not occur at the time of opening a sheet storage part.

SOLUTION: A sheet storage device regulates that a stopper 53 moves to a stored position stored in a slider 51 by a storage regulation part 55 when the slider 51 is positioned at an impact attenuation position where the stopper 53 is engaged with a dropout prevention part 16a so that impact load received from the dropout prevention part 16a via the stopper 53 is attenuated by a slider spring 52.

SELECTED DRAWING: Figure 10

COPYRIGHT: (C)2022,JPO&INPIT

Description

The present invention relates to a sheet storage device provided in an image forming device such as a copying machine, a printer, a facsimile machine, and a composite device thereof.

Conventionally, in an image forming apparatus such as a copier, a printer, a facsimile machine, and a composite device thereof for forming an image on a sheet, a sheet accommodating device for accommodating a sheet to be supplied to an image forming unit is provided. The seat storage device is provided with a seat storage unit for storing the seat. In the seat storage device, it is necessary to open and close the seat storage unit when replenishing the seats. It is equipped with a drop-off prevention mechanism to prevent the seat storage section from falling off from the seat storage device when the seat storage section is opened. It is necessary to attach / detach the seat storage unit from the seat storage device when jamming the seat or replacing the rollers. It is equipped with a detachable mechanism so that the seat compartment can be attached and detached from the seat storage device.

As a device provided with such a drop-off prevention mechanism and a detachable mechanism, in Patent Document 1, a drop-off prevention mechanism for preventing the seat storage section from falling off from the seat storage device when the seat storage section is opened, and a seat storage device are provided. It is equipped with a detachable mechanism that allows the seat compartment to be attached and detached.

Japanese Unexamined Patent Publication No. 2012-126575

However, in a seat storage device provided with such a fall prevention mechanism and a detachable mechanism, when a seat storage unit capable of loading a large capacity seat is provided, the seat storage unit rolls on the guide rail unit in order to smoothly open and close the seat storage unit. Bearings and the like are used. For this reason, the resistance when opening and closing the seat storage portion is reduced, and when the seat storage portion is vigorously opened with a large capacity seat loaded, an excessive load is applied to the dropout prevention mechanism. For this reason, there is a problem that a loud collision noise is generated and the seat storage portion is unintentionally dropped due to damage or the like.

The present invention solves the above-mentioned problems, and an object of the present invention is to provide a seat storage device that does not generate a loud collision noise, damage, or the like when the seat storage unit is opened.

A typical configuration of the seat storage device according to the present invention for achieving the above object is a seat storage device in which the seat storage unit for storing the seat is detachably provided from the main body of the seat storage device. In order to detachably support the seat storage portion with respect to the main body portion, the storage portion includes a rail member having a shape in which the seat storage portion is extended in a direction parallel to the removal direction with respect to the main body portion, and the rail member. A slide member that can move with respect to the rail member, a first urging member that urges the slide member in the removal direction, and a slide member that can move in a direction intersecting the removal direction of the slide member. The stopper member and the second urging member for urging the stopper member so as to protrude from the slide member are provided, and the main body portion is the same as protruding from the slide member by the second urging member. An engaging member that can be engaged with the stopper member is provided, and the impact received by the sliding member when the stopper member engages with the engaging member is dampened by the compression of the first urging member. The seat accommodating portion is prevented from falling off from the main body portion by engaging the stopper member with the engaging member, and the stopper member is projected from the slide member by the second urging member. By compressing the second urging member via the stopper member, the stopper member can be retracted from a position where it can engage with the engaging member and can be removed from the main body portion. It is a feature.

According to the present invention, no loud collision noise or damage is generated when the seat storage portion is opened.

It is sectional drawing which shows the structure of the image forming apparatus provided with the sheet accommodating apparatus which concerns on this invention. It is a perspective explanatory drawing which shows the structure of the image forming apparatus provided with the sheet accommodating apparatus which concerns on this invention. It is a perspective explanatory view which shows the state which pulled out the seat storage part from the seat storage device. It is a perspective explanatory drawing which shows the structure of the seat storage apparatus which concerns on this invention. It is a perspective explanatory view which shows the structure when the seat storage part is attached to the seat storage device. It is a perspective explanatory view which shows the structure when the seat storage part is pulled out from a sheet storage device within the range where a drop-out prevention part and a stopper do not come into contact with each other. It is a perspective explanatory view which shows the structure when the seat storage part is pulled out from a sheet storage device to the point where a drop-out prevention part and a stopper come into contact with each other. It is a perspective explanatory view which shows the structure of the seat storage device and the seat storage part in the state where the stopper is pushed down. (A) is a cross-sectional explanatory view showing a state of a drop-out prevention detachable part when the seat storage part is stored in the seat storage device which concerns on this invention. (B) is a cross-sectional explanatory view showing a state of a fall-prevention attachment / detachment portion when the seat storage portion is pulled out from the seat storage device within a range in which the drop-off prevention portion and the stopper do not come into contact with each other. (A) is a cross-sectional explanatory view showing a state of a drop-out prevention detachable part when the seat storage part is pulled out from a seat storage device to the point where a drop-out prevention part and a stopper come into contact with each other. (B) is a cross-sectional explanatory view showing a state of a fall-prevention attachment / detachment portion when the stopper is pushed down before the drop-off prevention portion comes into contact with the stopper.

An embodiment of an image forming apparatus including the sheet storage apparatus according to the present invention will be specifically described with reference to the drawings.

<Image forming device>
The configuration of the image forming apparatus 6 provided with the sheet accommodating apparatus 102 according to the present invention will be described with reference to FIG. FIG. 1 is a cross-sectional explanatory view showing the configuration of an image forming apparatus 6 provided with the sheet accommodating apparatus 102 according to the present invention. The image forming apparatus 6 shown in FIG. 1 has, for example, a photosensitive drum 1 as an image carrier made of an organic photosensitive member. Further, it has a charging roller 2 which is a charging means for uniformly charging the surface of the photosensitive drum 1 rotating in the counterclockwise direction of FIG. Further, it has a laser scanner 9 as an image exposure means.

The laser scanner 9 emits laser light based on image information to expose the surface of the photosensitive drum 1 uniformly charged by the charging roller 2. As a result, an electrostatic latent image is formed on the surface of the photosensitive drum 1. Toner is supplied to the electrostatic latent image formed on the surface of the photosensitive drum 1 by the developing sleeve 8 which is a developer carrier provided in the developing apparatus 3 which is a developing means, and is developed as a toner image. Reference numeral 19 shown in FIG. 1 is a stirring member for stirring the toner in the developing device 3.

On the other hand, the sheet S such as paper housed in the feeding tray 103 serving as the sheet storage portion shown in FIGS. 1 and 2 is transferred between the photosensitive drum 1 and the transfer roller 4 serving as a transfer means by a feeding means (not shown). It is supplied to the nip portion N at a predetermined timing. The toner image formed on the surface of the photosensitive drum 1 is transferred to the sheet S at the transfer nip portion N by applying a transfer bias to the transfer roller 4.

The sheet S to which the toner image is transferred is conveyed to a fixing device 5 serving as a fixing means, and is heated and pressurized in a process of being sandwiched and conveyed by the fixing roller and the pressure roller provided in the fixing device 5. The toner is thermally melted and is thermally fixed to the sheet S. After that, it is sandwiched and conveyed by a discharge roller (not shown) and discharged onto the discharge tray 20. The residual toner remaining on the surface of the photosensitive drum 1 without being transferred to the sheet S is scraped off by the cleaning blade 7 serving as a cleaning means and collected in the collection container 18.

<Seat storage device>
Next, the configuration of the seat storage device 102 according to the present invention will be described with reference to FIGS. 2 to 10. FIG. 2 is a perspective explanatory view showing the configuration of an image forming apparatus 6 provided with the sheet accommodating apparatus 102 according to the present invention. FIG. 3 is a perspective explanatory view showing a state in which the feed tray 103 (seat storage unit) is pulled out from the seat storage device 102. FIG. 4 is a perspective explanatory view showing the configuration of the seat storage device 102 according to the present invention.

FIG. 5 is a perspective explanatory view showing a configuration when the feeding tray 103 (seat storage unit) is attached to the seat storage device 102. FIG. 6 is a perspective explanatory view showing a configuration when the feed tray 103 (seat storage portion) is pulled out from the seat storage device 102 within a range in which the dropout prevention portion 16a (engagement member) and the stopper 53 do not abut. .. FIG. 7 is a perspective explanatory view showing a configuration when the feed tray 103 (seat storage portion) is pulled out from the seat storage device 102 to the point where the dropout prevention portion 16a (engagement member) and the stopper 53 come into contact with each other.

FIG. 8 is a perspective explanatory view showing the configuration of the seat storage device 102 and the feed tray 103 (seat storage portion) in a state where the stopper 53 is pushed down. FIG. 9A is a cross-sectional explanatory view showing a state of the drop-off prevention attachment / detachment portion 15 when the feed tray 103 (seat storage portion) is stored in the seat storage device 102 according to the present invention. FIG. 9B shows a drop-out prevention attachment / detachment section 15 when the feed tray 103 (seat storage section) is pulled out from the sheet storage device 102 within a range in which the drop-off prevention section 16a (engagement member) and the stopper 53 do not come into contact with each other. It is sectional drawing which shows the state of.

FIG. 10A shows the drop-off prevention / detachment section 15 when the feed tray 103 (seat storage section) is pulled out from the seat storage device 102 to the point where the drop-off prevention section 16a (engagement member) and the stopper 53 come into contact with each other. It is sectional drawing which shows the state. FIG. 10B is a cross-sectional explanatory view showing a state of the drop-off prevention attachment / detachment portion 15 when the stopper 53 is pushed down before the drop-off prevention portion 16a (engagement member) and the stopper 53 come into contact with each other.

As shown in FIGS. 2 and 3, in the sheet storage device 102 provided at the lower part of the image forming apparatus 6, a feed tray 103 serving as a sheet storage unit for storing a sheet S such as paper is provided in the sheet storage device 102 main body. It is provided so that it can be attached and detached. As shown in FIGS. 3 and 5 to 8, a pair of fixed guide rails 16 are provided on the left and right inner wall surfaces of the seat storage device 102 main body. On the other hand, a pair of movable guide rails 14 are provided on the left and right outer wall surfaces of the feed tray 103.

The movable guide rail 14 is provided on the feed tray 103 side (seat storage portion side), and is configured as a rail member that movably supports the feed tray 103 with respect to the seat storage device 102 main body. The movable guide rail 14 is movably supported along the fixed guide rail 16. As a result, the feed tray 103 is configured to be movable with respect to the seat storage device 102 in the direction of the arrow A in FIG. 3 so that it can be pulled out or inserted.

The feed tray 103 is attached to the seat storage device 102. In this state, the sheets S stored in the feeding tray 103 are separately fed one by one by the feeding device 41 provided on the main body side of the seat storing device 102. The feeding device 41 is configured as a feeding means including a feeding roller (not shown), a separating means, and the like.

Sheets S are separately fed one by one by the feeding device 41. After that, it is conveyed to the image forming unit 101 by a conveying means such as a conveying roller (not shown). Then, as described above, an image is formed on the sheet S. After that, it is discharged onto the discharge tray 20 by a discharge unit 42 provided with a discharge roller or the like (not shown). The image forming unit 101 forms an image on the sheet S supplied from the sheet storing device 102.

<Seat storage>
As shown in FIG. 3, the feed tray 103 serving as the seat storage portion includes a front side regulation plate 21, a rear side regulation plate 22, a left side regulation plate 23, a right side regulation plate 24, and a bottom plate 25. Is provided. Each of the four sides of the large-capacity sheet S loaded on the bottom plate 25 is in contact with the front side regulation plate 21, the rear side regulation plate 22, the left side regulation plate 23, and the right side regulation plate 24. The storage position is restricted.

On the outer wall surfaces on both the left and right sides of the feed tray 103, when the feed tray 103 is pulled out from the seat storage device 102 or inserted and opened / closed, the feed tray 103 is opened / closed in the direction of arrow A in FIG. A pair of movable guide rails 14 for guiding the user are provided. The movable guide rail 14 is provided with a drop-out prevention attachment / detachment portion 15 shown in FIGS. 9 and 10. The drop-off prevention attachment / detachment unit 15 has a drop-off prevention function for preventing the feed tray 103 from falling off from the seat storage device 102 main body. Further, it has a detachable function that allows the feed tray 103 to be attached / detached to / from the main body of the seat storage device 102.

On the other hand, a pair of fixed guide rails 16 are provided on the inner wall surfaces on both the left and right sides of the seat storage device 102 main body. The fixed guide rail 16 movably supports the movable guide rail 14 along the fixed guide rail 16 and guides the feed tray 103 in the opening / closing direction indicated by the arrow A in FIG.

The front end portion of the fixed guide rail 16 is provided with a drop-off prevention portion 16a for contacting the drop-off prevention attachment / detachment portion 15 provided on the movable guide rail 14 to prevent the feed tray 103 from falling off. The dropout prevention portion 16a is provided at the front end portion of the fixed guide rail 16 provided on the seat storage device 102 side (seat storage device side). The fall-off prevention portion 16a is configured as an engaging member that engages with the contact surface 53a1 of the protrusion 53a provided on the upper portion of the stopper 53 (stopper member) shown in FIGS. 9 and 10.

<Seat storage device>
FIG. 4 shows only the seat storage device 102 by omitting the caster portion provided with the upper image forming portion 101, the lower wheel 11 and the like for convenience of explanation. As shown in FIG. 4, the seat storage device 102 includes an upper plate 31, a rear side plate 32, a left side plate 33, a right side plate 34, and a bottom plate 35. The feed tray 103 is inserted from the opening 102a provided on the front surface of the seat storage device 102 and is stored inside the seat storage device 102 main body. A handle portion 26 is provided on the front surface side of the front side regulation plate 21 of the feed tray 103. The user can grasp the handle portion 26, move the feed tray 103 in the direction of the arrow A in FIG. 3, pull it out, or insert it to open and close it.

5 to 8 are views showing a process of pulling out the feed tray 103 from the state of being stored in the main body of the sheet storage device 102 in the direction of arrow A1 of FIGS. 6 to 8. FIG. 5 shows a state in which the feed tray 103 is stored in the main body of the seat storage device 102. FIG. 9A shows the state of the drop-off prevention attachment / detachment portion 15 when the feed tray 103 is stored in the seat storage device 102 main body.

<Detachment prevention attachment / detachment part>
As shown in FIGS. 9 and 10, the drop-off prevention attachment / detachment portion 15 is provided along the movable guide rail 14 (rail member) in an arbitrary range in the same direction as the opening / closing direction of the feed tray 103 indicated by the arrow A direction in FIG. Has a slider 51 (slide member) that is movably supported. Further, compression in which one end is locked to the locking portion 14b of the movable guide rail 14, and the other end is locked to the side surface 51a2 of the one end in the moving direction of the slider 51 (left-right direction in FIGS. 9 and 10). It has a slider spring 52 made of a spring. The slider spring 52 is configured as a first urging member that urges the slider 51 (slide member) along the movable guide rail 14 (rail member).

The dropout prevention attachment / detachment portion 15 can be further moved in the vertical direction (vertical direction in FIGS. 9 and 10) with respect to the opening / closing direction (horizontal direction in FIGS. 9 and 10) of the feed tray 103 inside the slider 51. Be supported. As shown in FIG. 10B, the drop-off prevention attachment / detachment portion 15 has a stopper 53 provided so as to be retractable inside the slider 51. The stopper 53 is provided on the slider 51 (slide member), and is a stopper member that can move in a direction (vertical direction in FIGS. 9 and 10) orthogonal to the moving direction (horizontal direction in FIGS. 9 and 10) of the slider 51. It is configured as.

As shown in FIGS. 9 and 10, the fall-off prevention attachment / detachment portion 15 further comprises a compression spring having one end locked to the bottom surface 51b of the slider 51 and the other end thereof locked to the bottom surface 53b of the stopper 53. It is configured to have a stopper spring 54. The stopper spring 54 is configured as a second urging member that urges the stopper 53 (stopper member) so as to protrude from the slider 51 (slide member). The stopper spring 54 urges the contact surface 53a1 of the protrusion 53a provided on the upper portion of the stopper 53 upward so as to protrude from the opening 51c provided on the upper portion of the slider 51.

<Slide member>
As shown in FIGS. 9 and 10, the slider 51 serving as a slide member has a bottom surface 51b and side surfaces 51a1 and 51a2 standing upright from both ends of the bottom surface 51b and has a U-shaped cross section. Will be done. The slider 51 is provided so as to be movable in the left-right direction of FIGS. 9 and 10 along the vertical guide portions 14c and 14d provided on the movable guide rail 14. An opening 51c is provided in the upper part of the slider 51. An opening 51b1 is provided on the bottom surface 51b of the slider 51.

<Stopper member>
As shown in FIGS. 9 and 10, the stopper 53 serving as a stopper member is housed inside the slider 51 having a U-shaped cross section, and is vertically oriented in FIGS. 9 and 10 along the side surfaces 51a1 and 51a2 of the slider 51. It is provided so that it can be moved to. As shown in FIG. 9A, when the stopper 53 is urged above FIG. 9A by the urging force of the stopper spring 54, the stopper 53 is provided at both ends in the left-right direction of FIG. 9A. The flanged portions 53c and 53d come into contact with the upper guide portion 14c to regulate the upper limit position. The protrusion 53a provided with the contact surface 53a1 of the stopper 53 is housed in the opening 14c1 provided in the middle of the upper guide portion 14c.

A storage restricting portion 55 is provided so as to project downward from the bottom surface 53b of the stopper 53. As shown in FIG. 10 (b), the stopper 53 moves downward in FIG. 10 (b) against the urging force of the stopper spring 54. In that state, the storage restricting portion 55 penetrates the opening 51b1 provided on the bottom surface 51b of the slider 51 and is accommodated in the opening 14d1 provided in the middle of the lower guide portion 14d.

As shown in FIG. 5, when the feed tray 103 is housed in the main body of the seat storage device 102, the drop-off prevention attachment / detachment portion 15 does not receive a load from anywhere as shown in FIG. 9A. Therefore, the slider spring 52 and the stopper spring 54 are not compressed, and the slider 51 and the stopper 53 are in the standby positions shown in FIG. 9A. The stopper 53 (stopper member) shown in FIGS. 9 (a), 9 (b) and 10 (a) is urged by the stopper spring 54 (second urging member) and stands by protruding from the slider 51 (slide member). Indicates the position.

6 and 9 (b) show feed trays in a range in which the dropout prevention portion 16a provided on the fixed guide rail 16 and the contact surface 53a1 provided on the stopper 53 of the dropout prevention attachment / detachment portion 15 do not come into contact with each other. A state in which the 103 is pulled out with respect to the main body of the seat storage device 102 and opened is shown. As shown in FIG. 9B, the feed tray is provided so that the dropout prevention portion 16a provided on the fixed guide rail 16 and the contact surface 53a1 provided on the stopper 53 of the dropout prevention attachment / detachment portion 15 do not come into contact with each other. The 103 is pulled out with respect to the main body of the seat storage device 102 and opened.

In that state, as shown in FIGS. 5 and 9 (a), the drop-off prevention detachable portion 15 is loaded from anywhere as in the state where the feed tray 103 is stored and closed in the seat storage device 102 main body. Never receive. Therefore, the slider spring 52 and the stopper spring 54 are not compressed, and the slider 51 and the stopper 53 are in the standby position as in FIG. 9A. 9 (a) and 9 (b) show that the contact surface 53a1 of the protrusion 53a provided on the upper portion of the stopper 53 (stopper member) is provided on the tip of the fixed guide rail 16 provided on the seat storage device 102 main body. The standby position before engaging with the fall-off prevention portion 16a (engagement member) is shown.

7 and 10 (a) show the feed trays up to the point where the dropout prevention portion 16a provided on the fixed guide rail 16 and the contact surface 53a1 provided on the stopper 53 of the dropout prevention attachment / detachment portion 15 come into contact with each other. A state in which the 103 is pulled out with respect to the main body of the seat storage device 102 and opened is shown. As shown in FIGS. 7 and 10A, until the drop-off prevention portion 16a provided on the fixed guide rail 16 and the contact surface 53a1 provided on the stopper 53 of the drop-off prevention attachment / detachment portion 15 come into contact with each other. The feed tray 103 is pulled out with respect to the main body of the seat storage device 102 and opened. In that state, the contact surface 53a1 provided on the stopper 53 of the dropout prevention attachment / detachment portion 15 receives a load from the dropout prevention portion 16a provided on the fixed guide rail 16 in the right direction of FIG. 10A.

The stopper 53 is provided so as to be movable in the vertical direction of FIG. 10A in the slider 51. The stopper 53 is provided so as to be movable in the left-right direction of FIG. 10A in the movable guide rail 14 by the load received from the fall prevention portion 16a. The slider 51 moves in the direction of compressing the slider spring 52 made of the compression spring (to the right in FIG. 10A) by the load received from the fall prevention portion 16a. When the slider spring 52 is compressed, the stopper 53 damps the impact received from the dropout prevention portion 16a provided on the fixed guide rail 16, and the slider 51 and the stopper 53 are at the impact damping position shown in FIG. 10A. ..

As shown in FIG. 10A, the dropout prevention portion 16a (engagement member) engages with the contact surface 53a1 of the protrusion 53a provided on the upper portion of the stopper 53 (stopper member). Then, the load received by the slider 51 (slide member) from the fall prevention portion 16a (engagement member) via the stopper 53 (stopper member) is attenuated by the slider spring 52 (first urging member). FIG. 10A is an impact damping position. The fall-off prevention portion 16a (engagement member) is provided at the tip end portion of the fixed guide rail 16 provided in the main body of the seat storage device 102.

As shown in FIG. 10A, consider the case where the slider 51 and the stopper 53 are in the impact damping position. At this time, the storage restricting portion 55 projecting from the lower portion of the stopper 53 penetrates the opening 51b1 provided in the bottom surface 51b of the slider 51 and abuts on the lower guide portion 14d provided in the movable guide rail 14. It becomes a position. As a result, the stopper 53 cannot be stored in the slider 51.

As shown in FIGS. 7 and 10 (a), the drop-off prevention portion 16a provided on the fixed guide rail 16 and the contact surface 53a1 provided on the stopper 53 of the drop-off prevention attachment / detachment portion 15 are supplied to the point where they come into contact with each other. The delivery tray 103 is pulled out with respect to the main body of the sheet storage device 102 and opened.

At this time, as shown in FIG. 10A, the dropout prevention portion 16a provided on the fixed guide rail 16 is maintained in contact with the contact surface 53a1 of the stopper 53. As a result, it is possible to reliably prevent the feed tray 103 from falling off from the seat storage device 102 main body. The stopper 53 (stopper member) has a storage restricting portion 55 (regulating portion).

As shown in FIG. 10 (a), the storage restricting unit 55 (regulating unit) has a storage position where the stopper 53 (stopper member) is shown in FIG. 10 (b) when the slider 51 (slide member) is in the impact damping position. Regulate moving to. As shown in FIG. 10A, the storage restricting portion 55 (regulating portion) of the stopper 53 (stopper member) is movable through the opening 51b1 (first opening) provided in the slider 51 (slide member). It abuts on the lower guide portion 14d of the guide rail 14 (rail member). This restricts the stopper 53 (stopper member) from moving to the storage position shown in FIG. 10 (b).

8 and 10 (b) show the stopper 53 before the drop-off prevention portion 16a provided on the fixed guide rail 16 and the contact surface 53a1 provided on the stopper 53 of the drop-off prevention attachment / detachment portion 15 come into contact with each other. Indicates the depressed state. As shown in FIGS. 8 and 10 (b), the stopper 53 of the drop-off prevention attachment / detachment portion 15 is pushed down. In that state, the feed tray 103 is pulled out from the seat storage device 102 in the direction of arrow A1 in FIG. 8 and opened. Then, the protrusion 53a of the stopper 53 can pass below the lower end portion of the dropout prevention portion 16a provided on the fixed guide rail 16. As a result, the feed tray 103 can be pulled out from the main body of the seat storage device 102 and removed.

As shown in FIG. 10A, before the dropout prevention portion 16a provided on the fixed guide rail 16 and the contact surface 53a1 provided on the stopper 53 of the dropout prevention attachment / detachment portion 15 come into contact with each other, FIG. As shown in b), the stopper 53 of the drop-off prevention attachment / detachment portion 15 is pushed down. In that case, the storage restricting portion 55 projecting from the lower portion of the stopper 53 penetrates the opening 51b1 provided on the bottom surface 51b of the slider 51 and is housed in the opening 14d1 provided in the middle of the lower guide portion 14d. To.

That is, the stopper 53 (stopper member) engages with the fall prevention portion 16a (engagement member). Before that, the stopper 53 is moved to the storage position shown in FIG. 10 (b) against the urging force of the stopper spring 54 (second urging member). At that time, the storage restricting portion 55 (regulating portion) penetrates the opening 51b1 (first opening) provided in the slider 51 (slide member) and is provided in the movable guide rail 14 (rail member). Evacuate from the second opening).

As a result, the storage restricting portion 55 does not come into contact with the lower guide portion 14d provided on the movable guide rail 14. As a result, the stopper 53 can be stored in the slider 51. FIG. 10B shows a storage position in which the stopper 53 (stopper member) is stored inside the slider 51 (slide member) against the urging force of the stopper spring 54 (second urging member). show.

Consider a seat storage device 102 provided with a drop-off prevention attachment / detachment portion 15 on the movable guide rail 14. Then, consider the case where the feed tray 103 capable of loading a large capacity sheet S is provided. Even in this case, when the feed tray 103 is pulled out from the main body of the seat storage device 102 and opened, a loud collision noise can be prevented or damage can be prevented. Further, the user can remove or attach the feed tray 103 from the seat storage device 102 main body without lifting the feed tray 103.

In this embodiment, it is an example of the case where the fall-off prevention attachment / detachment portion 15 is provided on the movable guide rail 14. The dropout prevention attachment / detachment portion 15 does not necessarily have to be provided on the movable guide rail 14, and the dropout prevention attachment / detachment portion 15 may be provided on the main body frame or the feed tray 103 side of the seat storage device 102 other than the movable guide rail 14 (not shown). ..

16a ... Fall-off prevention part (engagement member)
51 ... Slider (slide member)
52 ... Slider spring (first urging member)
53 ... Stopper (stopper member)
55 ... Storage regulation department (regulation department)

Claims (5)

In the seat storage device in which the seat storage unit for storing the seat is detachably provided from the main body of the seat storage device.
The seat storage section
In order to detachably support the seat storage portion with respect to the main body portion, a rail member having a shape extending the seat storage portion in a direction parallel to the removal direction with respect to the main body portion, and the rail member along the rail member. A slide member that can move with respect to the rail member, a first urging member that urges the slide member in the removal direction, and a stopper member that can move in a direction intersecting the removal direction of the slide member. A second urging member that urges the stopper member so as to protrude from the slide member is provided.
The main body portion includes an engaging member that can be engaged with the stopper member protruding from the slide member by the second urging member.
The stopper member engages with the engaging member, and the impact received by the slide member is damped by the first urging member compressing.
The seat accommodating portion is prevented from falling off from the main body portion by engaging the stopper member with the engaging member.
In a state where the stopper member protrudes from the slide member by the second urging member, the second urging member is compressed via the stopper member, so that the stopper member engages with the engaging member. A seat storage device characterized in that it can be retracted from a position where it can be fitted and can be removed from the main body. The seat storage device according to claim 1, wherein the first urging member is a first spring whose one end side is fixed to the rail member and the other end side is fixed to the slide member. The stopper member includes a regulating portion protruding in a direction parallel to the compression direction of the second urging member.
The seat storage device according to claim 1 or 2, wherein the slide member is provided with an opening at a position corresponding to the regulation portion. The rail member includes a locking portion capable of contacting the regulating portion and locking the regulating portion.
The restricting portion is characterized in that the stopper member engages with the engaging member to abut the locking portion through the opening in a state where the first urging member is compressed. The seat storage device according to claim 3. The fourth aspect of claim 4, wherein the regulating portion can move in a direction of retracting from the engaging member through the opening in a state where the first urging member is not compressed. Seat storage device.

Images