KR20060067824A - Slide type fork device - Google Patents

Abstract

Provided is a sliding fork device that is difficult to scatter dust and is easy to use.

The base part side engaging member 23 is provided in the intermediate structure A in the state which forms the engagement action range smaller than the length of the guide rail 22a of the base part side provided in the base part side member 15, The front end side engaging member 24 is attached to the intermediate structure A in a state in which the engagement action range is formed smaller than the length of the front side guide rail 22b provided on the front end side member 19, Engaging the entire range of the engagement action range of the base side engagement member 23 to the guide rail 22a of the foundation side, and the entire range of the engagement action range of the tip side engagement member 24 being the front end side. The intermediate member A is slide-operated with respect to the base member side member 15, and the tip member 19 with respect to the intermediate member A is formed in such a manner as to keep the fitting on the guide rail 22b of the guide rail 22b. With a retraction drive means for sliding .

Description

Sliding fork device {SLIDE TYPE FORK DEVICE}

1 is a plan view of an automated warehouse;

2 is a side view of an automated warehouse

3 is an exploded perspective view of the fork device

4 is an exploded side view of the fork device

5 is a cross-sectional front view of the fork device

Fig. 6 is a view showing the protruding retracting drive means in the fork device;

7 is a view showing an engagement state of the engagement member and the guide rail;

8 is a partially cutaway side view showing one protrusion state and the other protrusion state;

9 is an exploded side view of the fork device in another embodiment;

10 is a sectional front view of a fork device in another embodiment;

11 is a plan view of a fork device in another embodiment;

<Explanation of symbols for the main parts of the drawings>

14 fork device 15 base portion side member

16: base linkage member 17: relay linkage member

18: tip side link member 19: tip side member

22a: guide rail on the base side 22b: guide rail on the tip side

23: base side engaging member 24: tip side engaging member

25: first relay engagement member 26: second relay engagement member

27: first guide rail 28: second guide rail

31: protrusion retraction drive means 32: slide drive means

33: slide operation means 34: reverse guide

35: basic part color body 36: relay color body

37: tip side color body 38: dust cover

A: middle part

The present invention relates to a slide-type fork device configured such that the tip side member for supporting an article with respect to the base side member is protruded and retracted.

Such a slide-type fork device supports an article on a front end side member for supporting an article and moves the front end side member by protruding and retracting the article to carry the article. The stacker crane in an automatic warehouse, a self-propelled vehicle, It is provided in the conveying apparatus with which it was attached to a fixed stand, and is used when carrying an article.

And in such a slide-type fork apparatus, the guide rail is provided in each of a base side member and a front end side member conventionally, and the base part side which slides freely and engages with the guide rail of the base side provided with the base side member The intermediate member provided with the front side engaging member which slides and engages freely to the front side guide rail provided in the engaging member and the front side side member is provided, and the base side side engaging member has the range of the engagement action | movement. It is provided in the state formed in the length substantially equal to the length of the guide rail by the base part side, and a front end side fastening member is installed in the state which forms the engagement action range in the substantially same length as the length of the guide rail of the front end side, There existed some things (for example, refer patent document 1).

Such a slide-type fork device moves the intermediate member relative to the base side member so as to be positioned at an intermediate position of the movable range along the longitudinal direction of the guide rail on the base side, and moves the tip side member to the length of the guide rail on the tip side. A retracted state in which the intermediate member is positioned so that the intermediate member is located at an intermediate position of the movable range along the direction, and the intermediate member is moved to one end side of the movable range with respect to the base member and the leading member is moved to the intermediate member. One protrusion state which moved one side of the movable range with respect to a part, and an intermediate structure part are moved to the other end side of the movable range with respect to a base side member, and the front end side member is movable with respect to an intermediate member Foundation side member for switching to the other protrusion state moved to the other end side of the range And a protruding and retracting drive means which slides the intermediate member with respect to the intermediate member and slides the tip member against the intermediate member, and has one protrusion state in which the tip member is projected to one side of the slide moving direction with respect to the base member. In addition, it is comprised so that it may switch to the other protrusion state which protruded to the other, and it is comprised so that an article can be carried and moved between the object loading target places installed in the both sides of a slide movement direction.

[Patent Document 1]

Japanese Patent Publication No. 2-2307

However, as in the conventional configuration, since the base side engaging member is provided in a state in which the engagement action range is formed in a length substantially equal to the length of the guide rail on the base side, the guide rail on the base side from the retracted state. The guide rail on the base side in the range of the side to which the slide side moves in the engagement action range of the base side side engaging member in the state which switched to the one protrusion state or the other protrusion state which slid the base side side engagement member with respect to the And the front end side engaging member is provided in such a state that the front end side engaging member is formed to have a length substantially equal to the length of the guide rail on the front end side. One protrusion state in which the guide rail on the tip side is slid to the member. In the transition to state one protruding state, and the side of the sliding movement of the engaging action range of the front end side of the fastening member will discard alignment is displaced in the walk and the extent of the side opposite to the tip end side of the guide rail.

Thus, when switching from the retracted state to one of the protruding states or the other of the protruding states, the entire range of the engaging action range of the base engaging member is engaged with the guide rail of the basal side and the front engaging member Since it is impossible to maintain the engagement of the entire range of the engagement action to the guide rail on the tip side, the base side engagement member and the guide on the side side when switching from the retracted state to one protrusion state or the other protrusion state It is difficult to install in a clean room because the dust created by the engagement of the rails or the tip-side engaging members and the guide rails on the tip-side is easily pushed out and scattered around when these engagements are misaligned. When engaging the retracted state from one protruding state or the other protruding state, To the front end side or walking guide rail or the front end side of the guide rail of the base portion side to engage with the alignment member and chair interference was likely not be able to switch smoothly to the retracted state.

Therefore, the base side engaging member is provided in a state in which the engagement action range is made smaller than the length of the guide rail on the base side, and the front end side engagement member is set in the engagement action range to the length of the guide rail on the tip end side. It is installed in a smaller state to engage the entire range of the engagement action range of the base side engagement member to the guide rail on the base side, and the entire range of the engagement action range of the tip side engagement member on the tip side. In the form of keeping the guide rail engaged, the intermediate member is moved relative to the base member so that the intermediate member is positioned at the other end side of the movement range along the longitudinal direction of the guide rail on the base side, and the tip side member is moved to the guide rail on the tip side. Retracted relative to intermediate component so as to be located at the other end of the movement range along the longitudinal direction of And the intermediate member is moved relative to the base member so that the intermediate member is positioned at one end side of the movement range along the longitudinal direction of the guide rail on the base side, and the tip member is moved from the movement range along the longitudinal direction of the guide rail on the tip side. Protruding and retracting drive means for sliding the intermediate member relative to the base member and for sliding the tip member relative to the intermediate member in order to switch to the one projection state moved relative to the intermediate member so as to be located at one end side. You can think of a configuration to install.

However, in such a configuration, it is not possible to switch to the other protruding state, and the front end side member cannot slide to the object loading target point provided on the other side in the slide movement direction, and the object loading target point provided on the other side and In order to move the article between the two, a turning device for pivoting the base member around the longitudinal axis is provided, which is inconvenient to use because a large space is required around the slide-type fork device in order to pivot the base member.

This invention is made | formed in view of the said real condition, and the objective is to provide the sliding fork apparatus which is difficult to scatter dust and is convenient to use.

In order to achieve this object, the configuration of the first feature of the slide-type fork device according to the present invention is a slide-type fork device in which the tip side member for supporting the article is projected with respect to the base side member.

A guide rail is provided on each of the base side member and the front end side member, and the base side side engaging member and the front end side member are provided with a guide rail on the base side side provided in the base side side member so as to slide freely. An intermediate component having a front end engaging member for slidingly engaging with the guide rail on the front end side is provided, and the foundation side engaging member has the engaging action range smaller than the length of the guide rail on the base side. The front end side engaging member is provided in a state of forming the engaging action range smaller than the length of the guide rail on the front end side. Engaging the entire range to the guide rail on the side of the base and the hook on the tip side The intermediate component portion is formed at an intermediate position of the movable range along the longitudinal direction of the guide rail on the base side in such a form as to hold the entire range of the engagement action range of the fitting member on the guide rail on the tip side. A retracted state in which the base member is moved with respect to the base member and the tip member is moved relative to the intermediate member such that the intermediate member is positioned at an intermediate position of the movable range along the longitudinal direction of the guide rail on the tip side. A protruding state in which the intermediate member is moved to one end of the movable range with respect to the base side member and the tip side member is moved to one end of the movable range with respect to the intermediate member; and Move the intermediate member to the other end side of the movable range with respect to the base side member. And the intermediate member is slid with respect to the base member so as to switch to the other protruding state in which the tip member is moved to the other end side of the movable range relative to the intermediate member. The protrusion retreat drive means for sliding the said front end side member with respect to a structure part is provided.

That is, even if the base part side engagement member is provided in the state which forms the engagement action range smaller than the length of the guide rail of the base part side, even if it moves the intermediate structure part with respect to the base part side member, Since it is possible to keep the entire range of the engagement action range of the base side engagement member to the guide rail on the base side by the amount formed to be small, the movable range with respect to the base side side member of the intermediate component is By setting the intermediate engaging portion to a range in which it moves from the state located on one end side of the guide rail on the base side of the base side side to the state located on the other end side, the intermediate structure portion is formed with respect to the base side side member. One protruding state or intermediate component that is moved to one end side of the movable range Even if it is switched to the other protrusion state which moved to the other end side of the movable range with respect to a member, it is comprised so that it may hold | maintain engaging the whole range of the engagement action range of the base side engagement member to the guide rail of the base side. Can be.

In addition, the front end engaging member is provided in a state in which the engaging action range is formed to be smaller than the length of the guide rail on the front end side, and the front end side engaging member is slid even if the front end side member is slid. Since the entire range of the engagement action range of the front end side engaging member can be kept engaged with the guide rail on the front side by the amount of the member formed small, the movable range with respect to the middle component of the front end side member The front end side member is made into a range which moves from the state which is located in the one end side of the guide rail by the front end side of the front end side to the state which is located in the other end side, and makes the front end side member an intermediate structure part. The one protruding state moved to one end side of the movable range with respect to Even if it switches to the other protrusion state which moved to the other end side of the possible range, it can be comprised so that the whole range of the engagement action range of the front end side engaging member can be engaged with the guide rail of the front end side.

Therefore, by sliding the intermediate member with respect to the base member and sliding the tip member with respect to the intermediate member, it is possible to switch to the retracted state, one projecting state, and the other projecting state. It is not necessary and convenient to use, and even when switching from the retracted state to one of the protruding states or the other of the protruding states, the base side side guides the entire range of the engagement action range of the base side engaging member and the distal end engaging member. Since the engagement with the rail and the guide rail on the tip side can be maintained, the engagement between the base side engaging member and the guide rail on the base side when switching from the retracted state to the protruding state of one protruding state or the other protruding state And dust generated by the engagement of the tip-side engaging member and the guide rail on the tip-side Since it can suppress scattering to the surroundings, it is easy to install in a clean room with high cleaning degree, and even when switching to one protruding state or the other protruding state, the entire range and the base side of the engaging action range of the engaging portion of the foundation side The entire range of engagement of the guide rail and the tip engaging member of the guide rail and the guide rail on the leading side are maintained, so that the transition from one projection state or the other projection state to the retracted state can be smoothly performed. Can be.

Therefore, the engagement action range of the base side engagement member is formed smaller than the length of the guide rail on the base side side, and the engagement action range of the tip side engagement member is formed smaller than the length of the guide rail on the tip side, and the retracted state In either the protruding state or the other protruding state, engaging the entire range of the engaging action range of the base-side engaging member to the guide rail of the base-side engaging and engaging of the tip-side engaging member Since it is configured to keep the entire range of the fitting operating range on the guide rail on the tip side, it is difficult to scatter dust and can switch from the retracted state to both the protruding state and the other protruding state. Of the sliding type that I can configure it so that it is hard to scatter dust and is convenient for use It was possible to provide a fork device.

The structure of the 2nd characteristic of the slide-type fork device which concerns on this invention WHEREIN: The said intermediate structure part is equipped with the said base-part side engaging member and the 1st relay engaging member in the structure of a 1st characteristic. A front end side linking member having a base side linking member, the front end engaging member and a second relay engaging member, and a first guide rail to which the first relay engaging member is engaged; And a relay linking member having a second guide rail to which the second relay fastening member is engaged, wherein the first relay fastening member is configured to define a range of engagement of the first guide rail. It is provided in the state formed smaller than length, and the said 2nd relay engagement member is installed in the state which forms the engagement action range smaller than the length of the said 2nd guide rail, The said protrusion The retraction drive means engages the entire range of the engagement action range of the first engagement member to the first guide rail and the entire range of the engagement action range of the second relay engagement member. To hold the second guide rail in contact with the second guide rail, and in the retracted state, the base part side linking member is positioned at an intermediate position of the movable range along the longitudinal direction of the guide rail on the base part side. Move relative to the base member, and move the relay linking member relative to the base side linking member such that the base side linking member is positioned at an intermediate position of the movable range along the longitudinal direction of the first guide rail, and the tip side The relay so that the linking member is positioned at an intermediate position of the movable range in the longitudinal direction of the second guide rail; The relay side member is moved relative to the relay member so that the front end side member is positioned at an intermediate position of the movable range along the longitudinal direction of the guide rail on the front end side. In the protruding state, the base side linking member is moved to one end side of the movable range with respect to the base side linking member, and the relay linking member is moved to one end side of the movable range with respect to the base side linking member. And move the tip side linking member to one end side of the movable range relative to the relay linkage member, and move the tip side member to one end side of the movable range relative to the tip side linking member, In the other protruding state, the base side linking member is connected to the base side side member. Move the relay linking member to the other end side of the movable range relative to the base side linking member, and move the tip side linking member relative to the relay linking member to the other end side of the movable range. The base side side linking member is slide-operated with respect to the base side side member so as to move to the other end side and move the tip side member to the other end side of the movable range with respect to the tip side linking member, and the base Configured to slide the relay linking member with respect to the sub-side linking member, slide the tip-side linking member with respect to the relay linking member, and slide the tip-side member with respect to the tip-side linking member. Is in point.

That is, even if the 1st relay engagement member is provided in the state which forms the engagement action range smaller than the length of a 1st guide rail, even if the relay linkage member slides with respect to the base-side linkage member, it is 1st. Since it is possible to keep engaging the entire range of the engaging action range of the first relay engaging member to the first guide rail by the amount of the relay engaging member formed small, it is possible to By making a movable range into the range which moves from the state which is located in the one end side of the 1st guide rail of the relay linkage member to the state which is located in the other end side, the base part side engagement member of the base side linkage member, One of the protruding states or relay connections, in which the relay linking member is moved to one end of the movable range with respect to the linking member on the base side; Even if the member is switched to the other protruding state in which the member is moved to the other end side of the movable range with respect to the base-side linking member, the entire range of the engagement action range of the first relay engagement member is engaged with the first guide rail. It can be configured to keep things going.

Moreover, even if the 2nd relay engagement member is provided in the state which forms the engagement action | operation range smaller than the length of a 2nd guide rail, even if the front end side linking member slides with respect to a relay linkage member, Since it is possible to keep the second guide rail engaging the entire range of the engagement action range of the second relay fastening member by the amount of the relay fastening member that is made smaller, the relay linking member of the front end fastening member Range of movement from the position where the second engagement member of the leading end linking member is located at one end side of the second guide rail of the relay linking member to the state located at the other end side. By means of the above, the protruding state of one end or the tip side in which the tip side linking member is moved to one end side of the movable range with respect to the relay linking member Even if the linking member is switched to the other protruding state in which the linking member is moved to the other end side of the movable range with respect to the relay linking member, the entire range of the engaging action range of the second relay engaging member is engaged with the second guide rail. It can be configured to keep things going.

Therefore, the engagement action range of the first relay engagement member is formed smaller than the length of the first guide rail, and the engagement action range of the second relay engagement member is formed smaller than the length of the second guide rail, In any state where the retracted state, the one protruding state and the other protruding state are switched, engaging the first guide rail and engaging the second guide rail the entire range of the engaging action range of the first relay engaging member It is configured to hold the entire range of the engagement action range of the fitting member to the second guide rail, so that it is difficult to scatter dust, so that it can be difficult to scatter dust from the retracted state to both the one projected state and the other projected state. Can be configured to switch.

The intermediate component includes a base side linking member, a relay linking member, and a front end linking member, and slides the base linking member with respect to the base member, and slides the relay linking member with respect to the base linking member. The slide-operating member is operated by sliding the tip-side linking member with respect to the relay linkage member and sliding the tip-side member with respect to the tip linkage member. By providing four of the member and the front end side member, for example, the same fork reach is obtained as compared with having one member for sliding the intermediate member and two members for sliding. The length of the slide movement direction of each member can be shortened, and the slide movement of a slide-type fork device You can configure a smaller width in direction.

The structure of the 3rd characteristic of the slide-type fork apparatus which concerns on this invention WHEREIN: The length of the said base part side member, the said relay linkage member, and the said front end side member is the same in the structure of a 2nd characteristic, or Or it is comprised substantially the same, and the length in the sliding direction of the said base part side linking member and the said front end side linking member is the same or almost the same, and is formed smaller than the length of the said relay linking member.

That is, by forming the length of the base side linking member and the front end side linking member smaller than the lengths of the base side linking member, the relay linking member, and the front end side linking member, the base side linking member and the front end side linking member can be configured at a light weight, Therefore, the sliding fork device can be configured in a light weight.

As for the structure of the 4th characteristic of the sliding fork apparatus which concerns on this invention, the protrusion retraction drive means slides the said base part side linking member with respect to the said base part side member in any one of a 2nd or 3rd characteristic structure. A slide drive means for operation and a slide operation of the relay linking member by the movement of the base-side linking member, a slide operation of the tip-side linking member by the movement of the relay linking member, the movement of the tip-side linking member There is provided a slide operation means for sliding the tip member.

That is, since one slide driving means can slide all of the base side linking member, the relay linking member, the front end linking member, and the front end side member, only one slide driving means is sufficient to simplify the structure. can do.

The structure of the 5th characteristic of the slide-type fork apparatus which concerns on this invention is a structure of a 4th characteristic WHEREIN: The said slide operation means is extended in the slide movement direction by the one end connected to the said base-side side member, After being guided in the reverse direction by the reversing guide part provided in the base side linking member, one end is connected to the base side color body connected to the relay linking member and the base side linking member so that the slide movement direction is performed. Extending in the direction, guided in the reverse direction from the reverse guide portion provided in the relay linking member, and one end connected to the relay color linking member and the relay linking member connected to the tip side linking member in the slide movement direction. The tip which is extended and guided in the reverse direction from the reversing guide part provided in the tip side linking member, and then connected to the tip side member It is a point composed of side color bodies.

That is, by sliding the base-side linking member in the slide movement direction by the slide drive means, the relay linkage member is pulled to the base-side color body by the movement in the slide movement direction of the base-side linking member and moved in the slide movement direction. The tip-side linking member is pulled by the relay color body to move in the slide moving direction by the movement in the slide moving direction of the relay linking member, and the tip is moved in the slide moving direction by the tip-side linking member. The side member is pulled by the tip side color body to move in the slide movement direction, and is switched to the retracted state, one protruding state, and the other protruding state.

Then, the slide operation means is constituted of the base side color body, the relay color body, and the front side color body, and is configured to switch to the retracted state, one protruding state, or the other protruding state by pulling the color body. Dust is less likely to occur than the slide operating means is constituted by the rack and the pinion, and scattering around the dust can be suppressed.

The structure of the 6th characteristic of the slide-type fork apparatus which concerns on this invention WHEREIN: The dustproof which covers the said slide operation means in each of the said base side connection member and the said front end side connection member in the structure of a 4th or 5th characteristic. The cover body is provided in the state which protrudes in a slide direction.

That is, by covering the slide operation means with the dust cover, it is possible to prevent dust scattering from the slide operation means, and to cover the dust cover with any of the retracted state, one protruding state and the other protruding state. By covering the slide operation means, dust scattering from the slide operation means can be further prevented.

EMBODIMENT OF THE INVENTION Below, embodiment of this invention is described based on drawing.

As shown in FIG. 1, a pair of storage shelves 1 for storing articles W are disposed so as to face each other, and a stacker crane 2 is disposed between the pair of storage shelves 1 facing each other. It is installed so as to run along the traveling rail 3, and between the storage shelf 1 and the drooping device 4 provided on the entrance side of the storage shelf 1 by this stacker crane 2. It is comprised so that the article W may be conveyed, and an automatic warehouse is comprised by the storage shelf 1, the stacker crane 2, and the drooping device 4. As shown in FIG. On the other hand, as shown to FIG. 1, FIG. 2, in the storage shelf 1, the some goods accommodating part which accommodates the article W in an up-down direction and the width direction is formed, and one article ( W) is accommodated.

The stacker crane 2 includes a pair of front and rear props 6 for guiding the platform 9 so that the lifting platform 9 can be freely moved up and down at the front and rear ends of the travel direction. The upper end side portions of each strut 6 are connected to the upper frame 8 which is guided and supported by the upper rail 7 provided above the working passage, and on the platform 9, the base side A slide-type fork device 14 is provided in which the tip side member 19 for supporting the article is projected and retracted in the slide movement direction with respect to the member 15. As shown in FIG. 2, this slide-type fork device 14 has a protruding state in which the tip side member 19 protrudes from the retracted state to one side in the slide moving direction with respect to the base side member 15. And the other protruding state protruded to the other side, the retracted state of the slide-type fork device 14, the one protruding state, the switching to the other protruding state, and the lifting and lowering of the platform 9 It is comprised so that the article W may be stored and taken out in both of the pair of storage shelves 1 which oppose.

Next, the sliding fork device 14 will be described.

As shown in FIGS. 3-6, the slide-type fork apparatus 14 is comprised so that the front-end | tip side member 19 for article support with respect to the base-side member 15 may protrude and retreat, and the said base-side member A guide rail 22 is provided on each of the front end side members 19 and the front end side member 19, and a base freely engaged with the guide rails 22a on the base side provided in the base side member 15. Intermediate part A provided with the front side side engaging member 23 and the front side side engaging member 24 which slide-fits freely with the guide rail 22b of the front side provided with the side side engaging member 23 and the said front side side member 19. As shown in FIG. Is provided, the base side engaging member 23 is provided in a state in which the engagement action range is formed smaller than the length of the guide rail 22a on the base side, and the front end engaging member 24 is provided. (A) the engagement action range of the tip side; It is provided in the state formed smaller than the length of the guide rail 22b. On the other hand, the linear guide is comprised by the guide rail 22a of the base side, and the base part engaging member 23, and the linear guide is comprised by the guide rail 22b and the front side engaging member 24 of the front end side. In addition, although not shown, the rib is appropriately provided in the base side member 15 and the front end side member 19 in order to increase strength.

And the said intermediate | middle structure part A is the base part side linking member 16 provided with the said base part side engaging member 23, and the 1st relay engaging member 25, and the said front side engaging member 24. ) And a first guide rail 27 and the first guide member to which the front linking member 18 having the second relay engaging member 26 is engaged, and the first relay engaging member 25 is engaged. It is comprised by the relay linkage member 17 provided with the 2nd guide rail 28 which the 2nd engagement member 26 engages, and the said 1st relay engagement member 25 is hooked. It is provided in the state which forms the engagement | working range smaller than the length of the said 1st guide rail 27, and the said 2nd relay fastening member 26 sets the engagement | working range of motion to the said 2nd guide rail 28. As shown in FIG. It is provided in the state formed smaller than the length of. On the other hand, a linear guide is comprised by the 1st guide rail 27 and the 1st relay fastening member 25, and a linear guide is comprised by the 2nd guide rail 28 and the 2nd relay fastening member 26. As shown in FIG. Although not shown, ribs are appropriately provided in the base side linking member 16, the relay linking member 17, and the tip side linking member 18 to increase the strength.

Specifically, as shown in FIGS. 3 to 5, the guide rails 22a on the base side of the same length as the length of the slide moving direction of the base side member 15 are formed on the upper surface of the base side member 15. It is provided along the slide movement direction, and two guide rails 22a of this base part side are provided at intervals in the width direction orthogonal to a slide movement direction. And the base part side engaging member 23 which engages with the guide rail 22a of the base part side is provided in the lower surface of the base part side linking member 16, and this base part side engaging member 23 is one. It consists of four guide members totally provided with two guide rails 22a by the side of the two base parts at intervals in the longitudinal direction. On the other hand, both horizontal side parts of the base part side member 15 are bent upwards.

Further, on the upper surface of the relay linking member 17, a first guide rail 27 having the same length as the length of the slide moving direction of the relay linking member 17 is provided along the slide moving direction. Two 27 are provided at intervals in the width direction. And both transverse side parts of the base-side linking member 16 are bent in a U-shape upward, and the first bottom rail for engaging with the first guide rail 27 is located on the upper lower surface of the bent portion. The engagement member 25 is provided, and this 1st relay engagement member 25 has a total of four guide members provided in two at intervals in the longitudinal direction with respect to one 1st guide rail 27. Consists of

Moreover, the inner part of the width direction was recessed downward from the location which provided the 1st guide rail 27 of the relay linking member 17, and the relay linking member 17 is formed in the upper surface of the inner part. 2nd guide rails 28 of the same length as the length of the slide movement direction of the slide direction are provided along the slide movement direction, and these 2nd guide rails 28 are provided in the width direction at two space | intervals. The second relay engaging member 26 that engages with the second guide rail 28 is provided on the lower surface of the tip side linking member 18, and the second relay engaging member 26 is provided. ) Is composed of a total of four guide members provided in two at intervals in the longitudinal direction with respect to one second guide rail 28.

Moreover, the guide rail 22b of the front end side of the same length as the length of the slide movement direction of the front end member 19 is formed in the upper surface of the support part in which the lower part in the front end side member 19 was bent to both sides of the side outer side. It is provided along this slide movement direction, and two guide rails 22b by the front end side are provided in the horizontal direction at intervals. And both transverse side parts of the front end side linking member 18 are bent in a U-shape upward, and the front end side which engages with the guide rail 22b of the front end side is formed in the upper lower surface of this curved part. The fitting member 24 is provided, and this front end side engaging member 24 is comprised by the four guide members totally provided with two pieces spaced in the longitudinal direction with respect to the guide rail 22b of one front end side. It is.

Further, in the slide-type fork device 14, the entire range of the engagement action range of the base-side engagement member 23 is engaged with the guide rail 22a on the base-side side and the tip-side engagement The intermediate component A is held in the form of holding the entire range of the engagement action range of the member 24 to the guide rail 22b on the tip side of the guide rail 22a on the base side. The movable range is moved relative to the base side member 15 so as to be located at an intermediate position of the movable range along the longitudinal direction, and the front end side member 19 is movable in the longitudinal direction of the guide rail 22b on the front end side. A retracted state in which the intermediate member A is moved to the intermediate member A such that the intermediate member A is located at an intermediate position of the intermediate member A, and the movable member A is movable relative to the base member side 15. To one end of the And the protruding state in which the tip side member 19 is moved to one end side of the movable range with respect to the intermediate member A, and the intermediate member A is moved to the base member side 15. In order to shift to the other end side of the movable range with respect to the other end side of the movable range and to move the tip side member 19 to the other end side of the movable range with respect to the intermediate component A, The protruding and retracting drive means 31 which slides the said intermediate | middle component part A with respect to the base part side member 15, and also slides the said tip side member 19 with respect to the said intermediate | middle component part A is provided. It is installed.

And the protruding and retracting driving means 31 engages the entire range of the engagement action range of the first engagement member 25 to the first guide rail 27 and the second relay. The base portion side linking member 16 is held in the retracted state in such a manner as to hold the entire range of the engagement action range of the dragon engagement member 26 to the second guide rail 28. The relay linking member 17 is moved relative to the base side member 15 so as to be positioned at an intermediate position of the movable range along the longitudinal direction of the guide rail 22a on the base side, and the relay linking member 17 is moved to the first guide rail 27. The base side linking member 16 is moved so that the base side linking member 16 is positioned at an intermediate position of the movable range along the longitudinal direction of the first guide rail. (28) longitudinal direction The movable linking member 17 is moved relative to the relay linking member 17 so as to be positioned at an intermediate position of the movable range, and the front end side member 19 is movable in the longitudinal direction of the guide rail 22b on the front end side. The relay linking member 17 is moved so that the relay linking member 17 is positioned at an intermediate position of the relay linking member 17. In the protruding state, the base side linking member 16 is connected to the base side member 15. Relative to the one end of the movable range, the relay linking member 17 is moved to one end of the movable range relative to the base side linking member 16, and the tip side linking member 18 is moved. When the relay linking member 17 is moved to one end side of the movable range, and the tip side member 19 is moved to the one end of the movable range relative to the tip side linking member 18. In the other protruding state, the base side linking member 16 is moved to the other end side of the movable range with respect to the base side side member 15, and the relay linking member 17 is moved to the base side. Move the tip side linking member 18 relative to the relay linking member 17 to the other end side of the movable range relative to the linking member 16, and In order to move the tip side member 19 with respect to the tip side linking member 18 to the other end side of the movable range, the base side linking member 16 is slid to the base side linking member 15 and And slide the relay linking member 17 with respect to the base side linking member 16, and slide the tip linking member 18 with respect to the relay linking member 17. For the one-sided connection member 18 is configured to slide operating the front end side member (19).

As shown in FIG.7 and FIG.8, since the base side engagement member 23 is provided in the state which forms the engagement action range smaller than the length of the guide rail 22a of the base side, the base side side member Even if the base side linking member 16 is slid with respect to (15), the engagement range of the base side engaging member 23 is as much as the amount of the engaging portion of the base side engaging member 23 formed smaller. It is comprised so that engagement of the full range of to the guide rail 22a of the base part side can be maintained.

That is, the engagement action range of the base side engaging member 23 is set smaller than the movable range of the base side linking member 16, and the base side linking member 16 is moved relative to the base side side member 15. Even if the one projection state moved to one end side of the possible range or the other projection state moved to the other end side of the movable range with respect to the base side side member 15 to the base side side member 15 is the base side side. It is comprised so that engagement of the full range of the engagement action range of the engagement member 23 to the guide rail 22a of the base part side can be maintained.

Moreover, since the 1st relay engagement member 25 is provided in the state which forms the engagement action range smaller than the length of the 1st guide rail 27, the relay linkage with respect to the base-side linkage member 16 is carried out. Even if the member 17 is slid, the entire range of the engagement action range of the first relay engagement member 25 is set by the amount which makes the engagement action range of the first relay engagement member 25 small. It is comprised so that engagement with the 1st guide rail 27 can be maintained.

That is, the engagement action range of the first relay engagement member 25 is set smaller than the movable range of the relay linkage member 17, and the relay linkage member 17 is set relative to the base side linkage member 16. Even if one projection state moved to one end side of the movable range or the other projection state moved the relay linking member 17 to the other end side of the movable range with respect to the base-side linking member 16, It is comprised so that the whole range of the engagement action range of the 1st engagement member 25 can be engaged with the 1st guide rail 27 is maintained.

Moreover, since the 2nd relay engagement member 26 is provided in the state which forms the engagement action range smaller than the length of the 2nd guide rail 28, the front-side linkage with respect to the relay linkage member 17 is carried out. Even if the member 18 is slid, the entire range of the engagement action range of the second relay engagement member 26 is set by the amount that makes the engagement action range of the second relay engagement member 26 small. It is comprised so that engagement with the 2nd guide rail 28 can be maintained.

That is, the engaging action range of the second relay engaging member 26 is set smaller than the movable range of the distal end side linking member 18, and the distal end side linking member 18 with respect to the relay interlocking member 17 is set. Even if one protrusion state moved to one end side of the movable range or the other protrusion state to which the front end side linking member 18 is moved to the other end side of the movable range relative to the relay linking member 17, It is comprised so that engagement of the full range of the engagement action | movement range of the 2nd relay engagement member 26 to the 2nd guide rail 28 can be maintained.

Moreover, since the front end side engaging member 24 is provided in the state which forms the engagement action range smaller than the length of the guide rail 22b of the front end side, the front end side with respect to the front end side connection part material 18 is provided. Even if the member 19 is slid, the front end guide guides the entire range of the engagement action range of the tip engagement member 24 by the amount of the engagement action range of the tip engagement member 24 formed small. It is comprised so that engagement with the rail 22b can be maintained.

That is, the engagement action range of the tip side engaging member 24 is set smaller than the movable range of the tip side member 19, and the tip side member 19 is movable relative to the tip side linking member 18. Even if the one protruding state moved to one end side of the range or the other protruding state moved the tip side member 19 to the other end side of the movable range with respect to the tip side linking member 18, It is comprised so that the whole range of the engagement | operation range of the engagement member 24 can be engaged with the guide rail 22b of the front end side.

As shown in Fig. 4, the base side member 15, the relay linking member 17, and the tip side member 19 are configured to have the same or substantially the same length in the slide movement direction. The length in the slide movement direction of the base side linking member 16 and the tip side linking member 18 is the same or substantially the same, and is formed smaller than the length of the relay linking member 17 to a length less than half. Formed.

The pair of guide members of the base side engaging member 23 provided on the base side linking member 16 is disposed in such a manner as to be distributed to one end and the other end in the slide movement direction of the base side linking member 16. In addition, the pair of guide members of the tip-side engagement member 24 provided on the tip-side linking member 18 may be provided at one end of the tip-side linking member 18 and the other end of the slide moving direction. It is distributed and installed.

In addition, the base-side linking member 16 does not protrude to one side of the slide moving direction than one end of the base-side member 15 in one protruding state, and slides more than the other end of the relay linking member 17. It is comprised so that it may not protrude to the other side of a movement direction, and in the other protrusion state, it does not protrude to the other side of a slide movement direction than the other end of the base side member 15, and also the one end of the relay linkage member 17 is carried out. It is comprised so that it may not protrude to one side of a slide movement direction from a part. In addition, the tip-side linking member 18 does not protrude to one side of the slide moving direction than one end of the relay linking member 17 in one protruding state, and slides more than the other end of the tip-side member 19. It does not protrude to the other side of the direction, and in the other protruding state, it does not protrude to the other side of the slide moving direction than the other end of the relay linkage member 17 and slides from one end of the front end side member 19. It is comprised so that it may not protrude to one side of a movement direction.

The protruding and retracting driving means 31 slides the driving means 32 for sliding the foundation side linking member 16 with respect to the foundation side member 15 and the movement of the foundation side linking member 16. The relay linking member 17 is operated to slide, and the front linking member 18 is slide operated by the movement of the relay linking member 17, and the tip linking member 18 is moved by the movement of the front linking member 18. The slide operation means 33 which slides the front end side member 19 is comprised.

One end of the slide operation means 33 is connected to the base side member 15 so as to extend in the slide movement direction, and a reverse sprocket serving as a reverse guide provided in the base side linking member 16 ( After being guided in the reverse direction to 34, one end is connected to the base side color body 35 connected to the relay linkage member 17 and the base side linkage member 16 and extends in the slide movement direction. A relay color body 36 connected to the tip side linking member 18 after being guided in the reverse direction to the reverse sprocket 34 provided in the relay linking member 17, and the relay linking member 17. One end is connected to the tip side side connected to the tip side member 19 after being guided in the reverse direction to the inverted sprocket 34 provided in the tip side linking member 18 to extend in the slide movement direction. Sphere with sieve (37) It is.

As shown in FIG. 6, the slide drive means 32 is provided with the drive sprocket 41 and the driven sprocket 42 which are rotationally driven by an electric motor (not shown) in the base-side member 15, One end of the chain 43 is connected to the base-side linking member 16 and extends in one of the slide moving directions, and the middle portion is wound by the drive sprocket 41 and the driven sprocket 42 and guided in the reverse direction, respectively. After that, the other end is connected to the foundation-side linking member 16 and configured.

One end of the base color body 35 is connected to the base member 15 so as to extend in one of the slide moving directions, and is reversed by the reverse sprocket 34 provided in the base linking member 16. After being guided to the other side of the slide moving direction in the direction, one end is connected to the base chain on the base link side connected to the relay linking member 17 and the base member 15 extends to the other in the slide moving direction. After being guided to one of the slide moving directions in the reverse direction by the reverse sprocket 34 provided on the base side linking member 16, a pair of base side with the base side chain connected to the relay linking member 17 is provided. It consists of a chain.

In addition, one end of the relay color body 36 is connected to the base-side linking member 16 and extends in one of the slide moving directions, and is reversed in the reverse sprocket 34 provided in the relay linking member 17. After being guided to the other side of the slide moving direction, one end is connected to the relay chain connected to the front end side linking member 18 and the base side linking member 16, and extends to the other side of the slide moving direction. In the reverse sprocket 34 provided in the relay linking member 17, guided to one side of the slide moving direction in the reverse direction, and then a pair of relay chains with the relay chain connected to the front end linking member 18. Consists of.

Further, the tip side color body 37 is one end connected to the relay linkage member 17 and extends in one side of the slide moving direction, and is reversed by the reverse sprocket 34 provided in the tip linkage member 18. After being guided to the other side of the slide moving direction in the direction, one end is connected to the front end side chain connected to the front end side member 19 and the relay linkage member 17 and extends to the other side in the slide moving direction. And a pair of tip side with the tip side chain connected to the tip side member 19 after being guided in one of the slide moving directions in the reverse direction from the reverse sprocket 34 provided on the tip side linking member 18. It consists of a chain.

Therefore, the switching from the retracted state of the slide-type fork device 14 to one of the protruding states is performed by the operation of pulling the base-side linking member 16 to one side of the slide moving direction by the slide driving means 32. By the movement of the base-side linking member 16 to one side of the slide moving direction, the relay linking member 17 is pulled to the base-side color body 35 to move to one side of the slide moving direction, and the relay linking member By the movement to one side of the slide movement direction of (17), the front end side linking member 18 is pulled by the relay color body 36 and moved to one side of the slide movement direction, and the front end side linking member 18 is moved. By the movement to one side of the slide movement direction, the front end side member 19 is pulled to the front end side color body 37 to move to one side of the slide movement direction, thereby switching to one protruding state.

In addition, the switching from the retracted state of the slide type fork device 14 to the other protruding state is performed by moving the base-side linking member 16 to the other side of the slide moving direction by the slide driving means 32. By the movement of the base side linking member 16 to the other in the slide moving direction, the relay linking member 17 is pulled to the base side color body 35 to move to the other side of the slide moving direction. By the movement of the relay linking member 17 to the other side of the slide moving direction, the front end side linking member 18 is pulled to the relay color body 36 to move to the other side of the slide moving direction, and the front end thereof. By the movement of the side link member 18 to the other side of the slide movement direction, the front end side member 19 is pulled to the front side color body 37 and moved to the other side of the slide movement direction. It is switched to the one protruding state.

On each of the base-side linkage member 16 and the tip-side linkage member 18, a dustproof cover body 38 covering the slide operation means 33 is provided in a state of protruding in the slide direction.

That is, the dustproof cover body 38 is attached to one end of the slide moving direction and the other of the other end of the base-side linking member 16 in one end supporting state toward the outside of the slide moving direction. The dustproof cover body 38 of the base side linking member 16 is, in one protruding state, a relay linking member attached to one end of the base linking member 16 located outside the one end of the base linking member 16. (17) and the base portion side color body 35, or to be positioned directly below the reverse sprocket 34 provided in the relay linkage member 17, and attached to the other end in the other protruding state It is the connection point between the relay linking member 17 located outside the other end of the base-side linking member 16 and the base side color body 35, or the reverse sprocket 34 provided at the relay linking member 17. It is installed to be located below .

In addition, the dustproof cover member 38 is also attached to one end portion in the slide movement direction of the tip side linking member 18 and the other end portion in the other end portion in the supporting state toward the outside in the slide movement direction. The dustproof cover body 38 of the tip side linking member 18 is, in one protruding state, the tip side member which is attached to one end of the tip side linking member 18 outside the one end of the tip side linking member 18. (19) and the tip side color body (37) are provided so as to be located directly below, and in the other protruding state, the one attached to the other end is outside the other end of the tip side linking member (18). It is provided so that it may be located just below the connection point of the tip side member 19 and the tip side color body 37 located in the side.

The base side linking member 16 and the tip side linking member 18 are configured to have the same length or slightly shorter length as the base side member 15 when the dust cover cover 38 is included. In the present invention, the base-side linking member 16 and the tip-side linking member 18 are configured to enter on the base-side member 15 including the dustproof cover body 38.

On the other hand, since the relay linking member 17 or the front end side member 19 is not provided with a portion that is bent upward in both transverse parts, the dustproof walls 39 are attached to both transverse side so as to prevent dust from scattering laterally. have.

[Other Embodiments]

(1) In the said embodiment, although the engagement member 24 was comprised by the some guide member, you may comprise the engagement member by the some guide roller.

Specifically, as shown in Figs. 9 to 11, the base side member is formed so that the openings formed in the transverse side face the guide rails 22a on the side of the pair of base portions formed in a U-shape in cross section. The pair of E-shaped guide rails 45 provided in (15) and having a cross-sectional shape in an E-shape are provided in the relay linking member 17, and a pair of tip ends having a cross-sectional shape in a U-shape. Guide rail 22b is provided in the front end side member 19 so that the opening formed in the lateral side may face mutually opposite directions. On the other hand, the E-shaped guide rail 45 forms the first guide rail 27 at the portion where the passage is formed outward, and the second guide rail 28 at the portion where the opening is formed inward. And the first guide rail 27 and the second guide rail 28 are integrally formed.

And the base side engaging member 23 and the 1st relay engaging member 25 which are provided in the base side linking member 16 are comprised by four guide rollers rotatable around a horizontal axis, respectively, and the base side engaging The guide roller in the member 23 is engaged with the inside of the guide rail 22a on the base side, and the guide roller in the first relay engaging member 25 is placed outside the first guide rail 27. To the side. Moreover, the 2nd relay engaging member 26 and the front side engaging member 24 which are provided in the front side engaging member 18 are comprised with four guide rollers rotatable around a horizontal axis, respectively, The guide roller in the engagement member is engaged with the inside of the second guide rail 28, and the guide roller in the distal engagement member 24 is engaged with the outside of the guide rail 22b at the tip side. Let's do it.

On the other hand, as shown in FIG. 9, FIG. 10, even if the dust-proof board 46 of the same length as a guide rail is provided in the side in which the opening is formed so that dust generated in the guide rail may not scatter to the side, good.

(2) In the said embodiment, the intermediate | middle component part A is comprised including the base part side linking member 16, the relay linking member 17, and the front end side linking member 18, and comprises a slide-type fork device ( Although 14) was comprised by five steps, you may comprise the intermediate | middle structure part A provided with one linking member, and may comprise the slide-type fork apparatus 14 in three steps.

(3) In the said embodiment, although the length in the slide direction of the base side linking member 16 and the front side linking member 18 was formed smaller than the length of the relay linking member 17, the base side linking member 16 was formed. ) And the length in the slide direction of the tip-side linking member 18 may be formed to be equal to or substantially the same as the length of the relay linking member 17.

(4) In the above embodiment, the slide operation means 33 includes the movement of the base-side linking member 16, the movement of the relay linking member 17, the movement of the tip-side linking member 18, and the tip-side member 19. ), But the slide operation means 33 is constituted by a rack and pinion gear, and the base side linking member 16, the relay linking member 17, the tip side linking member 18, and the front end of the slide operation means 33 are connected to each other. You may comprise so that the movement of the side member 19 may be moved individually.

(5) In the above embodiment, the slide operation means 33 is composed of a plurality of color bodies of the base side color body 35, the relay color body 36, and the tip side color body 37, and the base side linking member. Although the movement of the 16, the movement of the relay linking member 17, the movement of the tip side linking member 18, and the movement of the tip side member 19 are configured to link, it may be configured to link with other means, For example, the slide operation means 33 is constituted by a plurality of link mechanisms, and the movement of the base side linking member 16, the movement of the relay linking member 17, the movement of the tip side linking member 18, and the tip of the linkage linkage 18 are performed. You may be comprised so that the movement of the side member 19 may be linked.

(6) Although the slide type fork device 14 is provided in the stacker crane 2 in the said embodiment, you may install the slide type fork device 14 in the conveying apparatus provided in the independent trolley | bogie and the fixed stand.

According to the slide-type fork device of the present invention, since it is difficult to scatter dust, it is not only suitable for installation in a clean room or the like, but also has an advantage of ease of use.

Claims (6)

A sliding fork device configured to protrude and retract an end member for an article support relative to a base member, Guide rails are provided on each of the base member and the tip member. A base side engagement member which slides and engages freely with a guide rail on the base side provided in the base side side member, and a front end side engagement member that slides and engages freely with a guide rail on the tip side provided in the tip side side. Equipped with an intermediate component, The said base part side engaging member is provided in the state which forms the engagement action range smaller than the length of the guide rail of the said base part side, The tip end engaging member is provided in a state of forming the engagement action range smaller than the length of the guide rail on the tip side, Engaging the entire range of the engagement action range of the base-side engagement member to the guide rail on the base side and hooking the entire range of the engagement action range of the tip-side engagement member to the guide rail on the tip side In the form of keeping the fitting, the intermediate member is moved with respect to the base side member so as to be positioned at an intermediate position of the movable range along the longitudinal direction of the guide rail on the base side, and the tip side member is moved from the front end side. A retracted state in which the intermediate member is moved so that the intermediate member is located at an intermediate position of the movable range along the longitudinal direction of the guide rail, and the intermediate member is one end side of the movable range relative to the base side member. Move the tip member relative to the intermediate member One protruding state moved to the one end side above, and the intermediate member is moved to the other end side of the movable range with respect to the base side member, and the tip side member is moved of the movable range with respect to the intermediate member. In order to switch to the other protrusion state which moved to the other end side, the protrusion retraction drive means which slides the said intermediate structure part with respect to the said base side member, and slides the said front end side member with respect to the said intermediate structure part is provided. Sliding fork device characterized in that. The base portion side linking member, the front end side engaging member, and the second relay, wherein the intermediate member includes the base side engaging member and a first intermediate engaging member. And a first guide rail to which the first engagement member engages, and a second guide rail to which the second engagement member engages. Configured with a relay linkage member, The said 1st relay engagement member is provided in the state which forms the engagement action range smaller than the length of the said 1st guide rail, The second relay engagement member is provided in a state in which the engagement action range is formed smaller than the length of the second guide rail, The protruding retraction drive means, Engaging the entire range of the engagement action range of the first relay engagement member to the first guide rail and the entire range of the engagement action range of the second relay engagement member the second guide rail. As a form to keep the fit on In the retracted state, the base linking member is moved relative to the base linking member so as to be located at an intermediate position of the movable range along the longitudinal direction of the guide rail on the base side, and the relay linking member is moved to the first guide. The base side side linking member is moved with respect to the base side side linking member so that the base side side linking member is located at an intermediate position of the movable range along the longitudinal direction of the rail, and the front end side linking member is movable in the longitudinal direction of the second guide rail. The relay linkage member is moved relative to the relay linkage member so as to be positioned at an intermediate position of the relay linkage member, and the relay linkage member is positioned at an intermediate position of a movable range along the longitudinal direction of the guide rail on the tip side. Move about the member, In the one projecting state, the base side linking member is moved to one end side of the movable range relative to the base side side member, and the relay linking member is moved to one end side of the movable range relative to the base side linking member. Move the tip side linking member to one end of the movable range relative to the relay linkage member, and move the tip side member to the one end of the movable range relative to the tip side linking member; , In the other protruding state, the base side linking member is moved to the other end side of the movable range relative to the base side linking member, and the relay linking member is moved to the other end of the movable range relative to the base side linking member. And move the tip side linking member to the other end side of the movable range relative to the relay linkage member, and move the tip side member to the other end side of the movable range relative to the tip side linking member. The base side member is slidably operated with respect to the base side member, the relay link member is slid with respect to the base side member, and the front end member is slid with respect to the relay connecting member. And the tip side member with respect to the tip side linking member. A slide-type fork device, which is configured to slide. 3. The slide of claim 2, wherein the base side member, the relay linking member, and the length in the slide direction of the tip side member are the same or substantially the same. The length of a slide is the same or about the same, and the sliding fork apparatus characterized by being formed smaller than the length of the said relay linkage member. 4. The relay linkage member according to claim 2 or 3, wherein the protruding and retracting drive means slides the base unit side linking member with respect to the base unit side member, and the relay linkage member is moved by the movement of the base unit linkage member. And slide operation means for sliding the tip-side linking member by the movement of the relay linking member and sliding the tip-side member by the movement of the tip-side linking member. A sliding fork device characterized by the above-mentioned. 5. The slide operation means according to claim 4, wherein one end of the slide operation means is connected to the base side member to extend in a slide movement direction, and guided in the reverse direction to a reverse guide provided in the base side linking member. A base part side color body connected to the relay linkage member; One end is connected to the base-side linking member and extends in the slide movement direction, and is guided in the reverse direction to the reverse guide part provided in the relay linking member, and the relay color body connected to the front-side linking member; One end is connected to the relay linking member, extends in the slide movement direction, is guided in the reverse direction by an inversion guide provided in the tip linking member, and is composed of a tip side color body connected to the tip side member. Sliding fork device, characterized in that. 5. The slide according to claim 4, wherein a dustproof cover body for covering the slide operation means is provided in each of the base portion side linking member and the tip side linking member so as to protrude in the slide direction. Fork device.

Images