JP2013017703A - Cart device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cart device capable of making it easy for workers to use and taking sufficient safety considerations during using while the installation area of the cart device and table articles of furniture in a working space are made minimum.SOLUTION: The cart device 1 includes: a base part 2; a supporting base body 3; a cart top plate 4; a top plate supporting part 5; a height adjusting means 7 for adjusting the height of an undersurface fitting member 6 which is provided on the supporting base body 3 and is hung and provided on the cart top plate 4 and the undersurface of the cart top plate 4 including the top plate supporting part 5. The height adjusting means 7 is characterized in that the height adjusting means can be adjusted into a first adjusting region which becomes to a position higher than the top face of the table top plate of the table articles of furniture in which the cart top plate 4 and the undersurface fitting member 6 are combined to be used, and a second adjusting region in which the top face of the cart top plate 4 becomes to the height to at least the top face of the table top plate or lower, and a region between the first adjusting region and the second adjusting region is an unfixable region being unfixable.

Description

  The present invention relates to a cart apparatus, and more particularly to a cart apparatus suitable as a cart having a top plate for placing an electronic device used in an office space such as an office, a hospital, or a public facility.

Conventionally, in office spaces such as offices, hospitals, and public facilities, there are cases where offices are used to move to various locations within the office space using electronic devices. In this case, an electronic device is placed on the top plate of the cart apparatus, and the worker moves with the cart apparatus, and the office work is performed at a place as necessary.
Here, in the case where a large number of workers perform work using each cart device, a storage place corresponding to the area and the number of cart devices is required. In addition, when charging an electronic device with the electronic device placed on the cart device, a plurality of cart devices are concentrated around the power source, so the power supply peripheral area becomes complicated. There was a situation.
Therefore, the front, left, and right spaces in the movement direction are continuously opened below the top plate of the cart device, and the top plate of the table fixture can be inserted into the space portion from the front to the rear. A cart apparatus is employed (see, for example, Patent Document 1 below). Thereby, since the top plate of the table fixture is superposed and disposed below the top plate of the cart device, it is possible to use the electronic device in a superposed state while reducing the installation area as a whole.
A cart device having a height adjustment function that enables adjustment of the height of the top plate of the cart device according to the physique and usage of the office worker is also employed (see, for example, Patent Documents 2 and 3 below). .

JP 2008-017929 A Japanese Patent No. 4616741 Japanese Patent No. 4345450

Here, a cart in which the above-described height adjustment function (for example, see Patent Documents 2 and 3) is added to a cart apparatus (for example, see Patent Document 1) that can be arranged in a superposed manner with the above table fixture. It is conceivable to employ an apparatus.
However, the height adjustment function described above has a specification that allows height adjustment to an arbitrary height in a certain region. Therefore, when the top plate of the table fixture is placed under the top plate of the cart device, depending on the height of the top plate of the cart device, it is provided below the top plate of the cart device or the top plate of the cart device. There has been a problem that the shelf or the support member that has been interfered with the top plate of the table fixture.

  In order to solve the above-described problems in the prior art, the present invention minimizes the installation area of the cart device and the table fixture in the office space, improves the convenience of the office worker, and sufficiently provides safety during use. The purpose is to provide a cart device with consideration.

In order to achieve the above object, the present invention employs the following means.
That is, the cart device according to the present invention includes a base portion provided with a plurality of casters capable of traveling on a floor surface, a support base erected upward from the base portion, and an upper side of the support base. The cart top plate disposed on the support base and supporting the cart top plate, the cart top provided on the support base and including the cart top plate and the top support portion. A height adjusting means for adjusting the height of the lower surface mounting member provided to hang from the lower surface of the plate, and so as to be surrounded by the cart top plate and the top plate support part, forward, left, and A front space that continuously opens to the right is formed, and the height adjusting means is such that the cart top plate and the lower surface mounting member are positioned higher than the upper surface of the table top plate of the table fixture used in combination. A first adjustment area and the car The top surface of the top plate can be adjusted to at least a second adjustment region having a height equal to or lower than the top surface of the table top plate, and the first adjustment region and the second adjustment region cannot be fixed. It is characterized by being an area.

In this configuration, since the height of the cart top plate can be adjusted in the first adjustment area by the height adjusting means, the height of the cart device is adjusted so that the cart top plate and the lower surface mounting member are positioned higher than the upper surface of the table top plate. can do. And in the state adjusted to the first adjustment area, the table top can be arranged in the front space that is provided below the cart top and opens continuously to the front, left, and right. It is possible to minimize the installation area of the cart device and the table fixture.
In addition, since the height of the cart top plate can be adjusted in the second adjustment area by the height adjustment means, the cart top plate is positioned at a position where the height of the top surface of the cart top plate is equal to or lower than the height of the top surface of the table top plate. The height of the device can be adjusted.
Further, the height adjusting means cannot fix the cart top plate in the non-fixable region between the first adjustment region and the second adjustment region, so that the cart top plate and the lower surface mounting member and the table top plate interfere with each other. Furthermore, the height of the top plate of the cart device cannot be adjusted. Therefore, the cart top plate, the lower surface mounting member, and the table top plate do not inadvertently interfere with each other, so that safety at the time of use by the office worker is sufficiently considered.

  Further, in the cart device according to the present invention, the height adjusting means can be adjusted to a position in the second adjustment region where the upper surface of the cart top plate is the same height as the upper surface of the table top plate. It is characterized by.

  In this configuration, the top surface of the cart top plate can be set to the same height as the top surface of the table top plate by adjusting the height of the cart top plate in the second adjustment region. Therefore, when the worker works with the cart device and the table fixture side by side, the cart top plate and the table top plate are on the same plane, so that the usability can be improved.

  Further, in the cart device according to the present invention, the height adjusting means can be adjusted to a position in the second adjustment region where the upper surface of the cart top plate is lower than the lower surface of the table top plate. Features.

  In this configuration, the height of the cart top plate can be adjusted to a position where the upper surface of the cart top plate is lower than the lower surface of the table top plate by adjusting the height of the cart top plate in the second adjustment region. Therefore, since the cart top plate can be disposed in the space provided below the table top plate, the installation area of the cart device and the table fixture can be minimized.

  Moreover, the cart apparatus according to the present invention is characterized in that the height adjusting means can be adjusted to a plurality of positions in the first adjustment region.

  In this configuration, the height of the cart device can be adjusted to a plurality of positions within the first adjustment region. Therefore, in particular, with the table top placed in the front space provided below the cart top, it is possible to work at the height of the cart top that is more optimal for the office worker. Can be made even better.

  Further, in the cart device according to the present invention, the support base is attached to the top plate support portion and a first support member provided on the base portion, and can be moved forward and backward with respect to the top plate support portion. A second support member, and the height adjusting means includes an engaged portion provided on either the first support member or the second support member, and the first support member or the second support member. A first engagement portion provided on the other side of the support member and engageable at a position corresponding to the engaged portion and the first adjustment region; and a second engagement portion engageable at a position corresponding to the second adjustment region. It has an engaging part and is provided between the first engaging part and the second engaging part, and has a guiding part for guiding the engaged part.

In this configuration, the engaged portion provided on either the first support member or the second support member, and the first engagement portion or second provided on the other of the first support member or the second support member. When the engaging portion engages, the relative vertical positional relationship between the first support member and the second support member is determined. Here, the first support member is provided on the base portion, the second support member is attached to the top plate support portion, and the top plate support portion supports the cart top plate. Further, when the engaged portion and the first engaging portion or the second engaging portion are engaged, the position corresponds to the first adjustment region or the second adjustment region. Therefore, it becomes possible to adjust the height of the cart device in the first adjustment region or the second adjustment region by engaging the engaged portion with the first engagement portion or the second engagement portion.
Furthermore, since there is a guide portion that guides the engaged portion between the first engaging portion and the second engaging portion, the engaged portion is formed by the first engaging portion and the second engaging portion. In the meantime, the first engaging portion or the second engaging portion is guided without being engaged. Therefore, the cart device can be adjusted in height in the first adjustment region or the second adjustment region without being fixed as a non-fixable region between the first adjustment region and the second adjustment region.

  Further, in the cart device according to the present invention, the height adjusting means includes the engaged portion engaged with the first engaging portion or the second engaging portion and the first engaging portion. It has a switching part which can be mutually switched to the release state where engagement with the joint part or the second engagement part was released.

  In this configuration, when the engaged portion is engaged with the first engaging portion or the second engaging portion, the cart device is fixed at a corresponding position in the first adjustment region or the second adjustment region. be able to. Further, when the engaged portion is brought into a released state in which the engagement with the first engaging portion or the second engaging portion is released, the cart device can be moved in the vertical direction. Furthermore, by having a switching unit that can switch between the engaged state and the released state, the cart device can be moved up and down and the cart device can be fixed in the first adjustment region or the second adjustment region.

  Further, in the cart device according to the present invention, the switching unit is provided in the second support member, and moves in a predetermined sliding direction from a position in the engaged state with the engaged portion to a position in the released state. A first slide support portion that is slidably supported, and is provided so as to be movable back and forth in the vertical direction with respect to the second support member, and slides so that the engaged portion gradually moves in the vertical direction along the slide direction. It has the 2nd slide support part supported so that it is possible.

In this configuration, the second slide support portion can advance and retreat in the vertical direction, and the engaged portion can be moved in the vertical direction. Therefore, when the second slide support portion moves upward or downward, the engaged portion moves relatively downward or upward, and accordingly, on either side of the slide direction. It is moved toward.
Therefore, the engaged portion in the engaged state can be switched to the released state by sliding the first slide support portion and the second slide support portion. Alternatively, the engaged portion in the released state can be switched to the engaged state by sliding the first slide support portion and the second slide support portion.

  In addition, the cart device according to the present invention includes an article placement unit that is supported on the lower surface of the cart top plate as the lower surface mounting member and on which an article can be placed.

  In this configuration, since the article placement section is provided on the lower surface of the cart top plate as the lower face mounting member and the article can be placed, the convenience of the office worker is improved. In addition, since the article placement section is supported on the lower surface of the cart top plate, the load of the article is reliably supported by the cart device and there is no risk of falling, so safety in use by workers is fully considered Is done.

  According to the cart apparatus of the present invention, it is possible to improve the usability of the office worker and sufficiently consider the safety during use while minimizing the installation area of the cart apparatus and the table fixture in the office space.

It is a longitudinal cross-sectional view of the cart apparatus which concerns on 1st embodiment of this invention. It is an elevational view of the cart device according to the first embodiment of the present invention. It is a top view of the cart apparatus concerning a first embodiment of the present invention. It is an elevation view which shows the 1st adjustment area | region of the cart apparatus which concerns on 1st embodiment of this invention, a 2nd adjustment area | region, and a non-fixable area | region. It is an elevation view when the height of the cart device according to the first embodiment of the present invention is adjusted to the first adjustment region. It is an elevation view when the height of the cart device according to the first embodiment of the present invention is adjusted to the second adjustment region. It is AA sectional drawing of the height adjustment means part in the case of being in an engagement state in a 2nd adjustment area | region. It is BB sectional drawing of FIG. 2 of the height adjustment means part in the case of being in an engagement state in a 2nd adjustment area | region. It is an image figure which shows the relationship between a 1st support member, a 2nd support member, and a lever member. It is BB sectional drawing of FIG. 2 of the height adjustment means part in the case of being in the cancellation | release state in a 2nd adjustment area | region. FIG. 3 is a cross-sectional view taken along the line B-B in FIG. 2 of the height adjusting means portion between the first adjustment region and the second adjustment region. It is BB sectional drawing of FIG. 2 of the height adjustment means part in the case of being in the cancellation | release state in a 2nd adjustment area | region. It is BB sectional drawing of FIG. 2 of the height adjustment means part in the case of being in an engagement state in a 2nd adjustment area | region. It is an elevation view at the time of adjusting the height of the cart device according to the modification of the first embodiment of the present invention to the second adjustment region.

(First embodiment)
Hereinafter, cart device 1 concerning a first embodiment of the present invention is explained with reference to drawings.
(overall structure)
As shown in FIGS. 1 to 3, the cart device 1 according to the present invention is erected upward from a base portion 2 provided with a plurality of casters 21 capable of traveling on a floor surface F, and from the base portion 2. The support base 3, the cart top 4 disposed above the support base 3, the top support 5 attached to the support base 3 and supporting the cart top 4, and the support base 3 are provided. A height adjusting means 7 for adjusting the height of the lower surface mounting member 6 provided to hang down from the lower surface of the cart top plate 4 including the top plate 4 and the top plate support portion 5 and an operation handle portion 8 are provided. The office worker can use the electronic device placed on the cart top plate 4 and holds the cart device 1 on the floor surface F by the caster 21 by gripping the operation handle portion 8 and applying the operation force. It can be moved. Here, the vertical direction of the paper surface in FIG. 3, which is the direction in which the office worker faces the operation handle portion 8 and pushes and pulls the operation handle portion 8, is the front-rear direction Y of the cart device 1, and the operation handle portion 8 is The upper side of the paper surface to be pushed is referred to as “front” of the cart device 1, and the lower side of the paper surface from which the operation handle portion 8 is pulled is referred to as “rear” of the cart device 1. Further, the left-right direction of the cart surface of FIG. 3 which is a direction orthogonal to the front-rear direction Y in plan view is the left-right direction X of the cart device 1, the right side of the paper surface is the “right side” of the cart device 1, and the left side of the paper surface is “ Referred to as “left side”. And the cart apparatus 1 is the front part which is continuously opened to the front, the left side, and the right side so as to be surrounded by the cart top board 4 and the top board support part 5 and the base part 2 at the front part. A space 9 is formed, and a table top plate B of the table fixture T can be inserted as will be described later.
Details of each component will be described below.

(Configuration of support base 3)
The support base 3 includes a first support member 31 provided on the base portion 2 and a second support member 32 attached to the top plate support portion 5 and capable of moving forward and backward with respect to the top plate support portion 5. .
As shown in FIG. 7, the first support member 31 includes a cylindrical exterior part 136 arranged along the vertical direction, and a cylindrical interior part 137 inserted into the exterior part 136. At the upper end of the interior part 137, an overhang part 138 is provided that projects in a flange shape. And the overhang | projection part 138 of the interior part 137 is latched by the upper end part of the exterior part 136, and the interior part 137 and the exterior part 136 comprise the 1st support member 31 integrally.
The 2nd support member 32 is a cylindrical member inserted in the interior part 137 of the 1st support member 31, and can advance / retreat the inside of the 1st support member 31 to an up-down direction. The top support portion 5 is attached to the second support member 32 at the upper end to support the cart top plate 4. Further, the second support member 32 is provided with a first slide support portion 171 of the height adjusting means 7 described later.

(Configuration of bottom support member)
As the lower surface mounting member 6 provided to hang down from the lower surface of the cart top plate 4, in addition to the top plate support portion 5, in this embodiment, it is further supported by the lower surface of the cart top plate 4 so that articles can be placed. A proper article placement unit 61 is provided. The article placement unit 61 may be provided with a tray that can store documents as articles, or a battery of an electronic device used on the cart top plate 4.

(Configuration of height adjusting means 7)
As shown in FIG. 4, the height adjustment means 7 includes a first adjustment region R1 in which the cart top plate 4 and the lower surface mounting member 6 are positioned higher than the upper surface B1 of the table top plate B of the table fixture T used in combination. The top surface 4a of the cart top plate 4 can be adjusted to the second adjustment region R2 having the same height as the top surface B1 of the table top plate B, and between the first adjustment region R1 and the second adjustment region R2. Is an unfixable region R3 that cannot be fixed. Details will be described below.
FIG. 7 is a cross-sectional view taken along line AA in FIG. FIG. 8 is a cross-sectional view taken along line BB in FIG. Here, the lever member 76 described later is indicated by a virtual line for easy understanding (the same applies to FIGS. 10 to 13).
As shown in FIGS. 7 to 9, the height adjusting means 7 includes a pin member 71 that is an engaged portion provided on the second support member 32, and a protrusion that protrudes from the outer peripheral surface of the second support member 32. A guide structure S that is provided on the first support member 31 and engages the pin member 71 and the projecting portion 79, and that the pin member 71 is engaged with the guide structure S. And a switching unit 75 that switches to a released state in which the engagement is released.
Both end portions of the pin member 71 penetrate the second support member 32 and protrude from both sides of the second support member 32.
The guide structure S is formed in a position corresponding to each of both end portions of the pin member 71 on the inner peripheral surface of the interior portion 137 of the first support member 31, and is a groove into which each end portion of the pin member 71 is inserted. It is. Specifically, the guide structure S includes a first recess 72 that is a first engagement portion that can engage the pin member 71 at a position corresponding to the first adjustment region R1, and the pin member 71 in the second adjustment region R2. The first concave portion 73 is a second engaging portion that can be engaged at a position corresponding to the first concave portion 73 and the first concave portion 72 is provided between the first concave portion 72 and the second concave portion 73 and is a guide portion that guides the pin member 71. A guide groove 74 and a second guide groove 80 disposed substantially parallel to the first guide groove 74 and guiding the protruding portion 79 are provided.
The first guide groove 74 and the second guide groove 80 are arranged along the vertical direction.
And the 1st guide groove 74 can insert the edge part of the pin member 71, and can guide the edge part of the inserted pin member 71 to an up-down direction. Further, a protruding portion 79 is inserted into the second guide groove 80, and the inserted protruding portion 79 can be guided in the vertical direction.

The first concave portion 72 is a concave portion extending in the circumferential direction D that is orthogonal to the first guide groove 74, and by engaging the pin member 71 and positioning it in the vertical direction, the cart top plate 4 and The lower surface mounting member 6 can be positioned higher than the upper surface B1 of the table top plate B of the table fixture T, that is, positioned in the first adjustment region R1.
Here, in the present embodiment, a plurality of first recesses 72 are formed with a predetermined pitch in the vertical direction within a range corresponding to the first adjustment region R1, and the first recess 72 is provided on the uppermost side. An upper end of one guide groove 74 is formed.

The second concave portion 73 is a concave portion extending in the circumferential direction D that is orthogonal to the first guide groove 74, and is engaged with the pin member 71 and positioned in the vertical direction, so that the cart top plate 4 The upper surface 4a can be positioned substantially equal to the upper surface B1 of the table top plate B of the table fixture T, that is, positioned in the second adjustment region R2.
In the present embodiment, one second concave portion 73 is formed at the lower end of the first guide groove 74 so that the upper surface 4a of the cart top plate 4 corresponds to a position substantially equal to the upper surface B1 of the table top plate B of the table fixture T. Has been.
Then, the pin member 71 is disengaged from the first concave portion 72 and the second concave portion 73 by the switching portion 75 described in detail below, and the pin member 71 is engaged with the first concave portion 72 or the second concave portion 73. The first guide groove 74 can be switched to a release state that is movable in the vertical direction.

(Configuration of switching unit 75)
The switching unit 75 is provided on the second support member 32, and includes a first slide support unit 171 that supports the pin member 71 so as to be slidable in a predetermined slide direction from a position where the pin member 71 is engaged to a position where the pin member 71 is released. A second slide support portion 172 that slidably supports the member 71 so as to gradually move in the vertical direction along the slide direction, and a lever member 76 that moves the second slide support portion 172 in the vertical direction.
The lever member 76 includes a main body portion 177 inserted into the second support member 32 and a grip portion 178 protruding from the upper end of the main body portion 177 toward the outer peripheral side of the second support member 32.
The main body portion 177 is disposed with a gap in the second support member 32, and a protruding portion 79 that protrudes and contacts the inner peripheral surface of the second support member 32 is formed in part. . For this reason, the main body 177 can be moved relative to the second support member 32 in the vertical direction while being positioned in a direction orthogonal to the vertical direction.
Further, a through hole 139 is formed in the second support member 32 along a vertical direction at a position corresponding to the grip portion 178, and the grip portion 178 passes through the through hole 139 and the second support member 32. Projects from the inside to the outside. Here, the through-hole 139 is extended along the vertical direction so that the grip portion 178 can be moved in the vertical direction. For this reason, the lever member 76 is movable relative to the second support member 32 within a range in which the grip portion 178 can move in the vertical direction within the through hole 139.
The first slide support portion 171 is an elongated hole that is formed in an elongated shape in the circumferential direction D orthogonal to the central axis of the second support member 32 and through which the pin member 71 is inserted. And the 1st slide support part 171 is supporting the pin member 71 so that a slide is possible by making the circumferential direction D used as an elongate longitudinal direction into a slide direction.
Further, the second slide support portion 172 is formed in the lever member 76 to be slanted so as to gradually move in the vertical direction along the slide direction of the first slide support portion 171, and the elongated hole into which the pin member 71 is inserted. It is. And the 2nd slide support part 172 is supporting the pin member 71 so that a slide is possible along an elongate longitudinal direction.
Here, as shown in FIGS. 8 and 10, the one end portion F1 of the first slide support portion 171, the one end portion S1 of the second slide support portion 172, and the first guide groove 74 are positioned in the circumferential direction D. Match.
The other end F2 of the first slide support 171 and the other end S2 of the second slide support 172, and the first recess 72 and the second recess 73 are aligned in the circumferential direction D.
That is, the one end F1 of the first slide support portion 171 and the one end S1 of the second slide support portion 172 can communicate with each other by matching the positions in the vertical direction, and communicate with the first guide groove 74. ing.
The other end F2 of the first slide support 171 and the other end S2 of the second slide support 172 can communicate with each other by matching the positions in the vertical direction, and the first recess 72 or the second The two concave portions 73 can communicate with each other by matching the positions in the vertical direction.

(Configuration of biasing means)
Further, a gas spring 77 is provided as a first urging means in the vertical direction inside the second support member 32, and the urging force is always working upward. The upper end of the gas spring 77 is fixed to the second support member 32, and the lower end is fixed to the first support member 31.
Inside the second support member 32, a spring 78 is provided as a second urging means in the vertical direction, and the urging force is always acting in the upward direction. The upper end of the spring 78 is fixed to the cart top plate 4, and the lower end is fixed to the lever member 76.

Next, the operation of the cart device 1 of this embodiment will be described.
7 and 8, the pin member 71 supported by the first slide support portion 171 and the second slide support portion 172 is engaged with the second recess 73 in the guide structure S provided on the first support member 31. Thus, the relative vertical positional relationship between the first support member 31 and the second support member 32 is positioned. And since the 2nd recessed part 73 is formed in the position corresponding to 2nd adjustment area | region R2, as shown in FIG. 6, the upper surface 4a of the cart top board 4 is made into the table top board B as 2nd adjustment area | region R2. The height of the cart apparatus 1 can be adjusted to the same height as the upper surface B1. Therefore, when the office worker works side by side with the cart apparatus 1 and the table fixture T, the cart top plate 4 and the table top plate B are on the same plane, so that the top plate surface can be widely used. The convenience can be improved and the usability can be improved.
Here, as shown in FIGS. 7 and 8, the pin member 71 engaged with the second recess 73 is located at the other end F <b> 2 of the first slide support 171 and is also supported by the second slide support. The other end portion S2 of the portion 172, that is, the upper end side of the second slide support portion 172 disposed to be inclined in the vertical direction with respect to the slide direction. On the other hand, the lever member 76 in which the second slide support portion 172 is formed is urged downward by a spring 78. Therefore, the pin member 71 positioned at the other end S <b> 2 of the second slide support portion 172 is biased upward relative to the second slide support portion 172, that is, by the biasing force of the spring 78. It is positioned at the other end S2 of the second slide support part 172 located on the upper side. For this reason, it is possible to reliably maintain the engaged state in which the pin member 71 is engaged with the second concave portion 73 communicating with the other end S2 of the second slide support portion 172. Further, the projecting portion 79 provided on the lever member 76 is inserted into the second guide groove 80 and is movable in the vertical direction, while the movement in the circumferential direction D is restricted. For this reason, the pin member 71 engages with the second recess 73 without the lever member 76 and the second support member 32 moving relative to the first support member 31 in the circumferential direction D by the biasing force of the spring 78. It is possible to reliably maintain the released state.

Next, switching from the second adjustment region R2 to the first adjustment region R1 will be described.
In order to move the cart top plate 4 from the second adjustment region R2 to the first adjustment region R1 in the up and down direction, the pin member 71 is first engaged from the engagement state in which the second recess 73 is engaged. It needs to be in a released release state.
Therefore, the office worker holds the holding portion 178 of the lever member 76 and pulls up the lever member 76 with respect to the second support member 32 against the bias of the spring 78.
Here, since the pin member 71 is inserted into the first slide support portion 171 formed in the second support member 32, the pin member 71 can slide in the slide direction along the circumferential direction D, but moves in the vertical direction. Remain limited.
For this reason, as shown in FIG. 10, by pulling up the lever member 76, the pin member 71 moves relatively downward with respect to the second slide support portion 172 formed on the lever member 76. It becomes. That is, the pin member 71 is relatively moved from the other end S2 of the second slide support 172 located on the upper side in the second slide support 172 to the one end S1 of the second slide support 172 located on the lower side. In association with this, it also moves along the sliding direction.
As a result, the pin member 71 moves in the sliding direction even in the first slide support portion 171 and the second recess portion 73, and the first guide groove 74 communicating with the one end portion F <b> 1 of the first slide support portion 171 and the second recess portion 73. It is located at the lower end of the and switches to the release state.
At this time, since the protruding portion 79 provided on the lever member 76 is restricted from moving in the circumferential direction D by the second guide groove 80, even if the pin member 71 moves in the sliding direction, the lever member 76 and the Accordingly, the two support members 32 do not move in the circumferential direction D corresponding to the sliding direction.

Then, the cart top plate 4 fixed to the second support member 32 together with the pin member 71, the second support member 32 on which the pin member 71 is supported, and the lever member 76 are brought into the first guide by being in the released state. It will be in the state which can be moved toward the up-down direction upper side along the groove | channel 74. FIG.
For this reason, by applying upward force to the cart top plate 4 and the second support member 32 while holding the grip portion 178 of the lever member 76, the cart top plate 4 is raised toward the first adjustment region R1. Can do.
Here, the cart top plate 4 and the second support member 32 are disposed inside the second support member 32, and the upper end is fixed to the second support member 32 and the lower end is fixed to the first support member 31. The spring 77 always exerts an upward biasing force in the vertical direction. For this reason, the gravity of the cart top plate 4 and the second support member 32 can be borne by the biasing force of the gas spring 77, and the cart top plate 4 can be easily moved upward and downward. The burden when adjusting the height in the upward direction can also be reduced.

  Further, between the first adjustment region R1 and the second adjustment region R2, the pin member 71 is guided along the vertical direction by the first guide groove 74, but there is no structure for restricting the movement in the vertical direction. It is not fixed in the vertical direction. Therefore, a region between the first adjustment region R1 and the second adjustment region R2 is a non-fixable region R3 that cannot be fixed.

  For this reason, the height of the cart apparatus 1 cannot be adjusted to the height at which the table top plate B interferes with the cart top plate 4 and the lower surface mounting member 6 that are the non-fixable region R3. Therefore, it is possible to prevent the cart top plate 4 and the lower surface mounting member 6 and the table top plate B from colliding with each other when the height is adjusted, and the safety during use is sufficiently considered.

As shown in FIG. 12, when the cart top plate 4 and the second support member 32 are further moved upward in the vertical direction, the cart top plate 4 is positioned up to the first adjustment region R1. When positioned in the first adjustment region R1, one of the first recesses 72 is opened on one side in the sliding direction of the pin member 71 inserted into the first guide groove 74 according to its height. . And
As shown in FIG. 13, the cart top plate 4 is moved to a height to be fixed in the first adjustment region R <b> 1, and the state where the gripping portion 178 of the lever member 76 is gripped is released. Then, a downward biasing force acts on the lever member 76 from the spring 78, and the lever member 76 moves downward relative to the second support member 32. For this reason, the second slide support part 172 formed on the lever member 76 is also relatively lower than the pin member 71 whose movement in the vertical direction is restricted by the first slide support part 171 of the second support member 32. Will move. Here, since the second support member 32 does not move downward, the first slide support portion 171 also does not move, so that the pin member 71 is restricted from moving up and down by the first slide support portion 171.
For this reason, as shown in FIG. 13, by moving the lever member 76 downward, the pin member 71 moves upward and downward relative to the second slide support portion 172 formed on the lever member 76. Will be. That is, the pin member 71 is relatively moved from one end S1 of the second slide support 172 located on the lower side of the second slide support 172 to the other end S2 of the second slide support 172 located on the upper side. In association with this, it also moves along the sliding direction.
Accordingly, the pin member 71 moves in the sliding direction also in the first slide support portion 171 and the first guide groove 74, and communicates with the other end portion F <b> 2 of the first slide support portion 171 and the first guide groove 74. The pin member 71 is located in the recess 72 and switched to an engaged state in which the pin member 71 is engaged with the first recess 72. In the engaged state, the engaged state is reliably maintained by the urging force of the spring 78 in the same manner as when the pin member 71 is engaged with the second recess 73.

And since the 1st recessed part 72 is formed in the position corresponding to 1st adjustment area | region R1, as shown in FIG. 5, the cart top board 4 and the lower surface attachment member 6 are used as table top board as 1st adjustment area | region R1. The height of the cart apparatus 1 can be adjusted to a position higher than the upper surface B1 of B. Therefore, since the office worker can adjust the height of the cart apparatus 1 to an optimum height within a high area, the convenience of the office worker is improved and workability is improved.
Furthermore, since the table top plate B can be disposed in the front space 9 provided below the cart top plate 4 and continuously opening forward, left and right, the cart apparatus 1 and the table fixture T are provided. It is possible to minimize the installation area of the office, and to effectively use the work space.
Furthermore, in this embodiment, since the several 1st recessed part 72 is formed corresponding to 1st adjustment area | region R1, the height of the cart top plate 4 can be adjusted to several positions. Therefore, in particular, it is possible to work at the height of the cart top plate 4 that is more optimal for the office worker with the table top plate B disposed in the front space 9 provided below the cart top plate 4. Therefore, the usability can be further improved. Further, when a plurality of office workers use the same cart top plate 4, the height of the cart device 1 can be adjusted to the optimal height of the cart top plate 4 for each office worker. High nature.
In addition, as described above, the height adjusting means 7 cannot fix the cart top plate 4 in the non-fixable region R3 between the first adjustment region R1 and the second adjustment region R2. The height of the cart top 4 of the cart device 1 cannot be adjusted to the height at which the mounting member 6 and the table top B interfere. Therefore, since the cart top plate 4 and the lower surface mounting member 6 and the table top plate B do not inadvertently interfere with each other, the safety at the time of use of the office worker is sufficiently considered.

Moreover, since the article mounting part 61 is provided on the lower surface of the cart top plate 4 as the lower surface mounting member 6, the office worker can place an article necessary for use on the article mounting part 61. Improves usability and improves usability.
In addition, since the article placement unit 61 is supported on the lower surface of the cart top plate 4, the load of the article is reliably supported by the cart device 1 and there is no risk of falling down. Is also fully considered.

In the above-described operation procedure, the height adjustment from the second adjustment region R2 to the non-fixable region R3 and the first adjustment region R1 has been described, but the first adjustment region R1 to the non-fixable region R3 and the second adjustment region are described. The same applies to the height adjustment to the region R2.
That is, switching from the first adjustment region R1 to the non-fixable region R3 is the same procedure as switching from the second adjustment region R2 to the non-fixable region R3.
As for the downward movement, when the gripping portion 178 of the lever member 76 is gripped and a downward force is applied, a downward biasing force acts on the gas spring 77 to move the cart top 4 downward. Is possible.
Further, switching from the non-fixable region R3 to the second adjustment region R2 is the same procedure as switching from the non-fixable region R3 to the first adjustment region R1.

  In this embodiment, the pin member 71 that is an engaged portion is provided on the second support member 32, and the first recess 72 that is the first engagement portion and the second recess 73 that is the second engagement portion are provided on the first support. Although each provided in the member 31, the pin member 71 may be provided in the first support member 31, and the first recess 72 and the second recess 73 may be provided in the second support member 32. In this case, for example, the pin member 71 protrudes from the interior portion 137 of the first support member 31 toward the central axis, and the first recess 72, the second recess 73, and the outer peripheral surface of the second support member 32 are provided. The first guide groove 74 is arranged to be able to engage with and release from the pin member 71.

(Modification of the first embodiment)
In the above description, as the second adjustment region R2, the height of the upper surface 4a of the cart top plate 4 is set to be substantially equal to the height of the lower surface of the table top plate B. It is only necessary that the height of the upper surface 4a can be set below the height of the lower surface of the table top plate B.
That is, as shown in FIG. 14, the second adjustment region R <b> 2 may be set such that the height of the upper surface 4 a of the cart top plate 4 is lower than the lower surface of the table top plate B.

In such a configuration, the height of the cart apparatus 1 can be adjusted to a position where the height of the upper surface 4a of the cart top plate 4 is lower than the upper surface B1 of the table top plate B in the second adjustment region R2. Therefore, since the office worker can adjust the height of the cart apparatus 1 to an optimum height in a low region, the convenience of the office worker is improved and workability is improved.
Further, since the cart top plate 4 can be disposed in the space provided below the table top plate B, the installation area of the cart device 1 and the table fixture T can be minimized, and the work space Can be used effectively.

  Note that the operation procedure shown in the above-described embodiment, various shapes and combinations of the constituent members, and the like are examples, and various modifications can be made based on design requirements and the like without departing from the gist of the present invention.

DESCRIPTION OF SYMBOLS 1 ... Cart apparatus 2 ... Base part 3 ... Support base | substrate 4 ... Cart top plate 5 ... Top plate support part 6 ... Lower surface attachment member 7 ... Height adjustment means 9 ... Front space 21 ... Caster 31 ... First support member 32 ... Second support member 61 ... article placement portion 71 ... pin member (engaged portion)
72 ... 1st engaging part (1st recessed part)
73 ... second engaging portion (second concave portion)
74 ... 1st guide groove (guide part)
75 ... Switching portion 171 ... First slide support portion 172 ... Second slide support portion

Claims (8)

A base portion provided with a plurality of casters capable of traveling on the floor surface;
A support base erected upward from the base portion;
A cart top plate disposed above the support base;
A top plate support attached to the support base and supporting the cart top plate;
A height adjusting means for adjusting a height of a lower surface mounting member provided on the support base and suspended from the lower surface of the cart top plate including the cart top plate and the top plate support portion;
Surrounded by the cart top plate and the top plate support part, to form a front space that opens continuously forward, left, and right,
The height adjusting means is
A first adjustment region in which the cart top plate and the lower surface mounting member are positioned higher than the upper surface of the table top plate of the table fixture used in combination;
The top surface of the cart top plate is adjustable to at least a second adjustment region having a height equal to or lower than the top surface of the table top plate,
The cart apparatus, wherein the area between the first adjustment area and the second adjustment area is a non-fixable area that cannot be fixed. The cart apparatus according to claim 1, wherein
The height adjusting means is
The cart apparatus, wherein the top surface of the cart top plate can be adjusted to a position in the second adjustment area at the same height as the top surface of the table top plate. The cart apparatus according to claim 1 or 2,
The height adjusting means is
The cart apparatus, wherein the top surface of the cart top plate can be adjusted to a position lower than the bottom surface of the table top plate in the second adjustment region. The cart apparatus according to any one of claims 1 to 3,
The height adjusting means is
A cart device capable of being adjusted to a plurality of positions within the first adjustment region. In the cart apparatus as described in any one of Claims 1-4,
The support base is
A first support member provided on the base portion;
A second support member attached to the top plate support portion and capable of moving back and forth in the vertical direction with respect to the top plate support portion;
The height adjusting means is
An engaged portion provided on either the first support member or the second support member;
Corresponding to a first engagement portion provided on the other of the first support member or the second support member and engageable at a position corresponding to the engaged portion and the first adjustment region, and the second adjustment region And a second engaging portion that can be engaged at a position where
A cart device comprising a guide portion provided between the first engagement portion and the second engagement portion and guiding the engaged portion. The cart apparatus according to any one of claims 1 to 5,
The height adjusting means is
The engaged state where the engaged portion is engaged with the first engaging portion or the second engaging portion and the engagement between the first engaging portion or the second engaging portion is released. A cart device comprising a switching unit that can be switched to a released state. The cart apparatus according to any one of claims 1 to 6,
The switching unit is
A first slide support portion provided on the second support member and slidably supported in a predetermined sliding direction from a position in the engaged state with the engaged portion to a position in the released state;
A second slide support portion provided so as to be movable back and forth in the vertical direction with respect to the second support member, and slidably supported so that the engaged portion gradually moves in the vertical direction along the slide direction; A cart device characterized by that. The cart apparatus according to any one of claims 1 to 7,
A cart apparatus comprising: an article placement section that is supported on the lower face of the cart top plate as the lower face attachment member and is capable of placing an article.

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