Trolley and trolley system

Abstract

The invention relates to a trolley and a trolley system. Specifically, the present disclosure relates to a trolley provided with: a pedestal on which an article is placed; the wheels are mounted on the pedestal; the locking device is provided with a latch, and the latch can be clamped with the fixed striker; a guide member that guides the striker to a position at which the striker can be engaged with the latch; and a trolley-side terminal that can be brought into contact with a fixed-side terminal, in which the fixed-side terminal is provided on a member to which the striker is fixed, and the trolley-side terminal is disposed at a position that can be brought into contact with the fixed-side terminal when the latch has been engaged with the striker. The trolley may be configured such that the guide member comes into contact with the striker before the trolley-side terminal comes into contact with the fixed-side terminal.

Description

Technical Field

[0001] The present disclosure relates to a trolley and a trolley system. Background Art

[0002] For example, in the cart described in Japanese Patent No. 2015-16779, a fixing mechanism for restricting the rotation of the caster is provided at a position close to the caster. Summary of the invention

[0003] The present disclosure discloses an example of a trolley and a trolley system. When an item requiring power supply, such as a refrigerator, is placed on the trolley, the trolley and the trolley system can supply power to the item placed on the trolley.

[0004] The carriage preferably includes, for example, at least one of the following components.

[0005] The components are: a pedestal on which an article is placed; a wheel mounted on the pedestal; a locking device having a latch capable of being locked with a fixed striker; a guide component for guiding the striker to a position capable of being locked with the latch; and a trolley-side terminal capable of contacting with a fixed-side terminal, wherein the fixed-side terminal is provided on a component to which the striker is fixed, and the trolley-side terminal is arranged at a position capable of contacting with the fixed-side terminal when the latch is locked with the striker. The trolley may be configured such that the guide component contacts with the striker before the trolley-side terminal contacts with the fixed-side terminal.

[0006] Thus, the trolley is guided by the guide member and locked with the striker fixed to a predetermined position, so that the position of the trolley side terminal is automatically consistent with the position of the fixed side terminal. Thus, the fixing of the trolley and the connection between the trolley side terminal and the fixed side terminal can be completed at the same time.

[0007] The vehicle may have the following configuration, for example.

[0008] When the direction in which the pedestal moves when the latch and the striker are locked is the locking direction, the trolley-side terminal can slide in the locking direction, and the trolley is provided with a spring that applies an elastic force in the locking direction to the trolley-side terminal. Thus, the positional deviation of the trolley-side terminal and the fixed-side terminal in the locking direction can be absorbed in the trolley.

[0009] Preferably, when the carriage side terminal contacts the fixed side terminal and the striker is locked with the latch, the spring is in an elastically deformed state. Thus, in the carriage, the contact surface pressure between the carriage side terminal and the fixed side terminal can be increased.

[0010] The trolley side terminal is preferably able to slide further to an inward position beyond the connection completion position. The connection completion position refers to the position of the trolley side terminal when the trolley side terminal contacts the fixed side terminal and the striker is locked with the latch. The inward direction refers to the direction from the fixed side terminal to the trolley side terminal.

[0011] Thus, even if the carriage-side terminal is greatly displaced relative to the fixed-side terminal in a direction perpendicular to the locking direction, it is possible to suppress damage to the carriage-side terminal due to a large load acting on the carriage-side terminal.

[0012] Preferably, when the trolley side terminal contacts the fixed side terminal, a magnetic attraction is generated between the trolley side terminal retainer holding the trolley side terminal and the fixed side terminal retainer holding the fixed side terminal, and the magnetic attraction is used to increase the contact surface pressure between the trolley side terminal and the fixed side terminal.

[0013] Therefore, because the force composed of the elastic force of the spring and the magnetic attraction acts on the contact part between the trolley side terminal and the fixed side terminal, the contact surface pressure between the trolley side terminal and the fixed side terminal can be increased, and the connection between the trolley side terminal and the fixed side terminal can be ensured.

[0014] The carriage-side terminal holder is preferably displaceable in a direction perpendicular to the locking direction. Thus, even if the carriage-side terminal is displaced relative to the fixed-side terminal in a direction perpendicular to the locking direction, the displacement can be absorbed.

[0015] In this case, even if the carriage-side terminal is offset in a direction perpendicular to the locking direction with respect to the fixed-side terminal, contact between the carriage-side terminal and the fixed-side terminal can be ensured.

[0016] Furthermore, it is preferred that the carriage-side terminal holder be provided with a recessed portion into which a portion of the fixed-side terminal holder can be inserted, and a tapered portion whose opening area increases toward the entrance is provided at an entrance of the recessed portion.

[0017] Thus, even if the carriage-side terminal is displaced in a direction perpendicular to the locking direction with respect to the fixed-side terminal, contact between the carriage-side terminal and the fixed-side terminal can be ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a figure which shows the carriage of 1st Embodiment.

[0019] Figure 2 It is a figure which shows the structure of a wall part.

[0020] Figure 3 It is a diagram showing the locking device, guide member, etc. according to the first embodiment.

[0021] Figure 4 It is a figure which shows the locking device etc. of 1st Embodiment.

[0022] Figure 5 It is a diagram showing the locking device, guide member, etc. according to the first embodiment.

[0023] Figure 6 It is a diagram showing the locking device, guide member, etc. according to the first embodiment.

[0024] Figure 7 It is a diagram showing the locking device, guide member, etc. according to the first embodiment.

[0025] Figure 8 It is a diagram showing the locking device, guide member, etc. according to the first embodiment.

[0026] Fig. 9 It is a diagram showing the power receiving device according to the first embodiment.

[0027] Fig.10 It is a diagram showing the relationship between the power receiving device and the locking device according to the first embodiment.

[0028] Fig.11 It is a diagram showing the relationship between the power receiving device and the locking device according to the first embodiment.

[0029] Fig.12 It is a diagram showing the relationship between the power receiving device and the locking device according to the first embodiment.

[0030] Fig.13 This is a diagram showing the upper surface side of the power receiving device according to the first embodiment.

[0031] Fig.14 This is a diagram showing a fixed power receiving device according to the first embodiment.

[0032] Fig.15 It is a diagram showing a fixed power receiving device according to the first embodiment.

[0033] Fig.16 It is a diagram showing a power receiving device according to the second embodiment. DETAILED DESCRIPTION

[0034] Hereinafter, embodiments of the present disclosure will be described with reference to the drawings.

[0035] The "embodiment" described below is an example of an embodiment to which the present disclosure belongs. That is, the technical solutions and the like described in the claims are not limited to the specific structures or configurations and the like shown in the following embodiment.

[0036] In addition, arrows and oblique lines indicating directions in the drawings are elements of the drawings indicated to facilitate understanding of the relationship between the drawings and the shapes of components or parts. Therefore, the trolley system shown in the present disclosure is not limited to the directions indicated in the drawings.

[0037] For components or parts that are at least marked with symbols for explanation, at least one is provided unless it is stated in advance as "one". The trolley system shown in the present disclosure includes components or parts such as components that are at least marked with symbols for explanation, and at least one of the structural parts shown in the figure.

[0038] (First embodiment)

[0039] <1. Overview of the Carriage System>

[0040] The vehicle system 1 of this embodiment is a vehicle 10 (see Figure 1 ) has been connected with the striker 2 (reference Figure 2 ) is a system that can supply power to the trolley 10 from a power supply unit (not shown) when the trolley 10 is stuck.

[0041] like Figure 2 As shown, the striker 2 is a substantially C-shaped metal bar for locking that is fixed to a wall-like portion such as the inner wall of the vehicle. Figure 4 ) The engaging portion extends in a substantially vertical direction.

[0042] The striker 2 of this embodiment is fixed to the wall 4 via a fixing rail 5 such as AirlineRail (registered trademark). An article (for example, a refrigerator or other appliance) 3 can be placed on the carriage 10 (see Figure 1 ).

[0043] <2. Details of the trolley>

[0044] like Figure 1 As shown, the carriage 10 includes a base 11, a column 12, a locking device 13, a guide member 14, and a power receiving device 20. The base 11 is a portion on which the article 3 is placed. A plurality of wheels 11A are mounted on the base 11.

[0045] The base 11 is formed in a substantially rectangular plate shape. Moreover, each wheel 11A is arranged at a position corresponding to the four corners of the base 11. Each wheel 11A is composed of a so-called "swivel caster". A swivel caster is a wheel that can freely rotate and displace the direction of the wheel axle by twisting the wheel axle center line and the rotation center line.

[0046] The column 12 is a columnar member that rises from the base 11. In the present embodiment, the column 12 is provided at two corners of the base 11. Each column 12 is configured to be substantially C-shaped with an opening at the rear side (see Figure 3 ).

[0047] In this description, Figure 1 As shown, the portion of the carriage 10 where the two pillars 12 are provided is referred to as the rear side. Also, the side opposite to the rear side across the pedestal 11 or the article 3 is referred to as the front side.

[0048] <2.1 Locking device>

[0049] The locking device 13 is a device that can lock with the striker 2 in a manner of holding the striker 2. Figure 4 As shown, the locking device 13 has a recess 13A, a latch 13B, and the like.

[0050] The recessed portion 13A is a portion into which the striker 2 is inserted. The latch 13B is a member that is locked with the striker 2 inserted into the recessed portion 13A. When a release device (not shown) is operated, the engagement between the latch 13B and the striker 2 is released.

[0051] The locking device 13 is a device that can be switched between a locked state in which the striker 2 is locked with the latch 13B and an unlocked state in which the locked state is released. Furthermore, the position of the latch 13B in the locked state is different from the position of the latch 13B in the unlocked state.

[0052] like Figure 1 As shown, at least one locking device 13 is provided on each of the two pillars 12. In addition, in the present embodiment, the locking devices 13 are provided on the upper end side and the lower end side of each pillar 12, respectively.

[0053] The locking device 13 disposed on the lower end side of the column 12 is located closer to the pedestal 11 than the middle portion of the column 12 in the longitudinal direction. In addition, each locking device 13 is housed in the corresponding column 12 (see Figure 3 ).

[0054] <2.2 Guide Components>

[0055] like Figure 5 As shown, the guide member 14 is provided at a position close to the locking device 13. The guide member 14 is a member that guides the striker 2 to a portion of the recess 13A where it can be locked with the latch 13B (hereinafter, this portion is also referred to as a locking portion).

[0056] Specifically, if Figure 6 As shown, when the column 12 (refer to Figure 1 , Figure 3When the striker 2 is approached by the guide member 14, the guide member 14 comes into sliding contact with the striker 2 and guides the striker 2 to the locking portion of the locking device 13.

[0057] Therefore, if Figure 5 As shown, the guide member 14 is provided with a recessed portion 14A for guiding the striker 2. The recessed portion 14A is a portion recessed from the rear end of the guide member 14 toward the front side.

[0058] An inclined surface 14B is provided on the opening side of the recess 14A, that is, on the rear end side of the guide member 14. The inclined surface 14B is a portion inclined with respect to the normal direction of the contact surface 14C so that the opening width W decreases toward the front.

[0059] A contact surface 14C is provided at the rear end of the guide member 14, that is, at the opening side of the recess 14A. Figure 8 As shown, the abutment surface 14C is a surface that contacts the wall portion 4 when the striker 2 is locked with the locking device 13 .

[0060] Moreover, if Figure 6 and Figure 7 As shown, the guide member 14 is displaceable in a direction orthogonal to the abutment surface 14C (in the present embodiment, the front-rear direction) relative to the locking device 13 fixed to the column portion 12. In addition, hereinafter, this direction (in the present embodiment, the front-rear direction) is also referred to as a locking direction.

[0061] Specifically, if Figure 3 As shown, the guide member 14 is supported by the bracket 15 so as to be displaceable relative to the bracket 15. The bracket 15 is fixed to the column portion 12. The bracket 15 is provided with a long hole 15A.

[0062] The long diameter direction of the long hole 15A coincides with the direction in which the guide member 14 can be displaced. Figure 5 ) is slidably fitted into the long hole 15A. The boss portion 14D is a protruding portion protruding from the wall surface (the upper surface in this embodiment) of the guide member 14.

[0063] Moreover, if Figure 3 As shown in FIG. 1 , a plate 15B is disposed on the side opposite to the guide member 14 across the bracket 15, that is, on the upper surface side of the bracket 15. The guide member 14 is fastened and fixed to the plate 15B by bolts 15C.

[0064] Thus, the bracket 15 is sandwiched between the plate 15B and the guide member 14. The guide member 14 is displaceable in the front-rear direction (in other words, the locking direction) relative to the lock device 13 by sliding the boss portion 14D in the long hole 15A.

[0065] like Figure 6 As shown, the spring 16 is provided on the front end side of the guide member 14. The spring 16 is an elastic body that applies elastic force to the guide member 14 to resist the pressing force acting on the contact surface 14C.

[0066] The front end side of the guide member 14 refers to the front end side of the guide member 14 in the displacement direction (in Figure 6 The pressing force acting on the abutment surface 14C refers to the reaction force from the wall portion 4 generated when the abutment surface 14C collides with the wall portion 4 when the user presses the trolley 10 toward the wall portion 4 in order to fix the trolley 10 with the striker 2.

[0067] Therefore, the guide member 14 of this embodiment is configured so that the abutment surface 14C first contacts the wall portion 4 when the column portion 12 and the striker 2 approach each other. Specifically, the carriage system 1 is configured so that the abutment surface 14C is located at the rear end regardless of the displacement state (in other words, the mounting position) of the guide member 14.

[0068] <3 Power Receiving Device>

[0069] <3.1 Overview of Power Receiving Device>

[0070] The power receiving device 20 is a unit for supplying power from a power source (in this embodiment, a vehicle (not shown)) to the vehicle 10. The power receiving device 20 is provided with a socket (not shown) for a power cord plug (not shown) of an item 3 such as a refrigerator.

[0071] like Figure 1 As shown, the power receiving device 20 is disposed at a position close to a specified locking device 13 among the plurality of locking devices 13. Specifically, the power receiving device 20 is accommodated in the column portion 12 in a state of being adjacently arranged at a position offset in the up-down direction (specifically, the downward direction) relative to the specified locking device 13.

[0072] <3.2 Configuration of Power Receiving Device>

[0073] like Fig. 9 As shown, the power receiving device 20 has a carriage-side terminal 21 , a carriage-side terminal holder 22 , and a holder bracket 23 .

[0074] <Car side terminals>

[0075] The carriage side terminal 21 is capable of being connected to the fixed side terminal 31 (see Figure 2 ) is an electrode electrically connected to the power supply unit. The fixed side terminal 31 is a power supply electrode electrically connected to the power supply unit. Fig.10As shown, the fixed-side terminal 31 is held by a fixed-side terminal holder 32 .

[0076] The fixed-side terminal holder 32 is fixed to the fixed power receiving device 30 (see Figure 1 Moreover, the carriage side terminal 21 is arranged at a position where the carriage side terminal 21 can contact the fixed side terminal 31 when the striker 2 is locked with the latch 13B (when the locking device 13 is locked with the striker 2).

[0077] Specifically, when the carriage 10 is not locked and fixed relative to the striker 2, that is, when the striker 2 and the guide member 14 are separated from each other, Fig.10 As shown, the carriage-side terminal 21 and the fixed-side terminal 31 are also separated from each other.

[0078] Furthermore, when the trolley 10 moves from the front side to the rear side along the locking direction so that the support column 12 approaches the wall portion 4, as shown in FIG. Fig.11 As shown, the guide member 14 comes into contact with the striker 2 before the carriage-side terminal 21 comes into contact with the fixed-side terminal 31 .

[0079] In addition, when the trolley 10 approaches the wall 4, as shown in FIG. Fig.12 As shown, the latch 13B is locked with the striker 2, and the carriage-side terminal 21 is in contact with the fixed-side terminal 31. Thus, the power supply unit and the power receiving device 20 of the carriage are in an electrically connected state.

[0080] <Car side terminal holder>

[0081] The carriage side terminal holder 22 holds the carriage side terminal 21. Fig.12 As shown in FIG. 1 , a recess 22A is provided in the carriage-side terminal holder 22. The recess 22A is a recessed portion into which a part of the fixed-side terminal holder 32 can be fitted.

[0082] Therefore, the recessed portion 22A is recessed forward from the front end of the carriage-side terminal holder 22 in the locking direction (front-rear direction). Fig.10 As shown, a tapered portion 22B is provided at the entrance of the recess 22A.

[0083] The tapered portion 22B includes a surface inclined with respect to the locking direction so that the opening area of ​​the tapered portion 22B increases as it approaches the entrance of the recessed portion 22A. The tapered portion 22B is configured as an arc-shaped curved surface, and the tapered portion 22B is provided on the entire circumference of the outer edge of the entrance of the recessed portion 22A (see Fig. 9 ).

[0084] <Supporting structure of the terminal holder on the carriage side>

[0085] The carriage side terminal holder 22 can slide in the locking direction. In other words, the carriage side terminal 21 can slide in the locking direction. Specifically, the carriage side terminal holder 22 is relative to the holder bracket 23 (refer to Fig. 9 ) can slide in the locking direction with the retainer bracket 23 (refer to Fig. 9 )link.

[0086] like Fig. 9 As shown, the holder bracket 23 is fixed to the column portion 12. The holder bracket 23 is provided with a long hole 23A. The long diameter direction of the long hole 23A coincides with the locking direction. The boss portion 22C provided on the carriage-side terminal holder 22 is slidably inserted into the long hole 23A.

[0087] The boss portion 22C is a protruding portion protruding from the wall surface (the upper surface in this embodiment) of the carriage side terminal holder 22. In addition, a plate 22E is arranged on the opposite side of the carriage side terminal holder 22 across the holder bracket 23, that is, on the upper surface side of the holder bracket 23.

[0088] like Fig.13 As shown, the plate 22E is fastened and fixed to the carriage-side terminal holder 22 by a plurality of (four in this embodiment) bolts 22D. Therefore, the holder bracket 23 is in a state of being sandwiched between the plate 22E and the carriage-side terminal holder 22.

[0089] Furthermore, by slidingly displacing the boss 22C in the long hole 23A, the carriage-side terminal holder 22 can be displaced in the locking direction (in other words, the front-rear direction) relative to the holder bracket 23 .

[0090] A spring 24 is provided between the carriage-side terminal holder 22 and the column 12. The spring 24 applies an elastic force to the carriage-side terminal 21, which is an elastic force toward the rear in the locking direction (front-rear direction), that is, an elastic force toward the wall 4 (hereinafter referred to as a pressing force).

[0091] When at least the carriage-side terminal 21 contacts the fixed-side terminal 31 and the carriage 10 further approaches the wall portion 4 so that the striker 2 is locked with the latch 13B (hereinafter referred to as the locked contact state), the spring 24 is elastically deformed and is in a state of generating a pressing force.

[0092] Moreover, when the position of the trolley side terminal retainer 22 in the locked contact state is taken as the connection completion position, and the direction from the fixed side terminal 31 toward the trolley side terminal 21 side (the forward direction of the locking direction (front and rear direction)) is taken as the inward direction, the trolley side terminal retainer 22 can slide further beyond the connection completion position to the inward direction position.

[0093] That is, the dimension in which the carriage-side terminal holder 22 can slide is larger than the dimension from the position where the fixed-side terminal 31 and the carriage-side terminal 21 are close to and in contact with each other to the connection completion position further inward.

[0094] <Relationship between Carriage-side Terminal Retainer and Fixed-side Terminal Retainer>

[0095] At least one of the carriage-side terminal holder 22 and the fixed-side terminal holder 32 is provided with a magnet 33 (see Fig.14 ), and the other is provided with an attraction portion 25 made of ferromagnetic material (refer to Fig. 9 ). In addition, in the present embodiment, the magnet 33 is provided on the fixed-side terminal holder 32 , and the attraction portion 25 is provided on the carriage-side terminal holder 22 .

[0096] Therefore, in this embodiment, when the carriage-side terminal 21 contacts the fixed-side terminal 31 , the magnetic attraction generated between the magnet 33 and the attracting portion 25 acts as a magnetic attraction to increase the contact surface pressure between the carriage-side terminal 21 and the fixed-side terminal 31 .

[0097] <4. Fixed power receiving device>

[0098] like Fig.14 As shown, the fixed power receiving device 30 has a fixed-side terminal holder 32 (including a fixed-side terminal 31) and a bracket 34. The bracket 34 is a component fixed to the wall portion 4 via a fixed rail 5 or the like.

[0099] The fixed-side terminal holder 32 is supported on the bracket 34 so as to be displaceable in a direction orthogonal to the locking direction. Fig.15 As shown, at least one (two in the present embodiment) fixing portion 32A is provided on the fixed-side terminal holder 32 .

[0100] Each fixing portion 32A is provided with a through hole 32C through which a stepped bolt 32B for fixing passes. The through hole 32C has a hole diameter larger than the large diameter portion of the stepped bolt 32B.

[0101] Therefore, each fixing portion 32A can be displaced relative to the stepped bolt 32B in a direction perpendicular to the longitudinal direction of the stepped bolt 32B. In the present embodiment, the longitudinal direction coincides with the locking direction. Thus, each fixing portion 32A can be displaced in a direction perpendicular to the locking direction (hereinafter referred to as a vertical direction).

[0102] In addition, at least one (in this embodiment, multiple) stepped bolts 32B and through holes 32C are provided on each fixing portion 32A. Moreover, each stepped bolt 32B passes through the corresponding fixing portion 32A and is fixed to the bracket 34 (see Fig.14 ).

[0103] The bracket 34 is provided with a restriction member 35. The restriction member 35 applies an elastic force to each fixing portion 32A, and the elastic force restricts displacement of each fixing portion 32A in the vertical direction. The restriction member 35 of the present embodiment is a plate-shaped member made of rubber.

[0104] <5. Features of the trolley>

[0105] Under the guidance of the guide member 14, the trolley 10 is locked with the striker 2 fixed to a predetermined position, and the position of the trolley side terminal 21 is automatically consistent with the position of the fixed side terminal 31. Thus, the fixing of the trolley 10 and the connection between the trolley side terminal 21 and the fixed side terminal 31 can be completed at the same time.

[0106] The carriage terminal 21 is slidable in the locking direction, and the carriage 10 includes a spring 24 that applies elastic force in the locking direction to the carriage terminal 21. Thus, the carriage 10 can absorb positional deviation between the carriage terminal 21 and the fixed terminal 31 in the locking direction.

[0107] In the trolley 10, when the trolley side terminal 21 contacts the fixed side terminal 31 and the striker 2 is locked with the latch 13B, the spring 24 is in an elastically deformed state. Thus, in the trolley 10, when the trolley side terminal 21 contacts the fixed side terminal 31, the contact surface pressure between the trolley side terminal 21 and the fixed side terminal 31 can be increased.

[0108] The trolley side terminal 21 of the trolley 10 can slide further to the inward position beyond the connection completion position. Therefore, if the trolley side terminal 21 is greatly offset relative to the fixed side terminal 31 in a direction orthogonal to the locking direction, it is possible to suppress the trolley side terminal 21 from being damaged due to a large load acting on the trolley side terminal 21.

[0109] The trolley system 1 is constructed so that when the trolley side terminal 21 contacts the fixed side terminal 31, a magnetic attraction is generated between the trolley side terminal retainer 22 holding the trolley side terminal 21 and the fixed side terminal retainer 32 holding the fixed side terminal 31, and the magnetic attraction is used to increase the contact surface pressure between the trolley side terminal 21 and the fixed side terminal 31.

[0110] Therefore, because the force composed of the elastic force of the spring 24 and the magnetic attraction acts on the contact part between the trolley side terminal 21 and the fixed side terminal 31, the contact surface pressure between the trolley side terminal 21 and the fixed side terminal 31 can be increased, and the connection between the trolley side terminal 21 and the fixed side terminal 31 can be ensured.

[0111] In the trolley system 1, at least one of the trolley-side terminal holder 22 and the fixed-side terminal holder 32 (the trolley-side terminal holder 22 in the present embodiment) can be displaced in the vertical direction. Thus, even if the trolley-side terminal 21 is offset relative to the fixed-side terminal 31 in a direction orthogonal to the locking direction, the offset can be absorbed.

[0112] Furthermore, even if the carriage-side terminal 21 is offset in the vertical direction with respect to the fixed-side terminal 31 , the contact between the carriage-side terminal 21 and the fixed-side terminal 31 can be ensured.

[0113] The carriage-side terminal holder 22 is provided with a recess 22A in which a part of the fixed-side terminal holder 22 can be inserted, and a tapered portion 22B is provided at the entrance of the recess 22A, the opening area of ​​which increases toward the entrance.

[0114] Thus, even if the carriage-side terminal 21 is displaced in a direction perpendicular to the locking direction with respect to the fixed-side terminal 31 , contact between the carriage-side terminal 21 and the fixed-side terminal 31 can be ensured.

[0115] (Second embodiment)

[0116] The carriage-side terminal holder 22 of the first embodiment described above is immovable in the vertical direction relative to the column portion 12. In contrast, the carriage-side terminal holder 22 of the second embodiment is configured to be displaceable in the vertical direction.

[0117] That is to say, Fig.16 As shown in FIG. 1 , the holder bracket 23 of the second embodiment is fixed to the column portion 12 via elastically deformable support members 23E and 23F such as rubber. The support members 23E and 23F are supported by the column portion 12 directly or indirectly.

[0118] The support member 23E allows the holder bracket 23 to be displaced in the horizontal direction, and prohibits the holder bracket 23 from being displaced in the horizontal direction beyond a preset dimension.

[0119] The support member 23F allows the holder bracket 23 to be displaced in the vertical direction, and prohibits the holder bracket 23 from being displaced in the vertical direction beyond a preset dimension.

[0120] Thus, similarly to the carriage system 1 of the first embodiment, even if the carriage-side terminal 21 is offset in the vertical direction, that is, in the direction orthogonal to the locking direction, with respect to the fixed-side terminal 31 , the offset can be absorbed.

[0121] The above description is about the differences between the vehicle system 1 and the vehicle 10 of the first embodiment. Therefore, the same components as those in the first embodiment are denoted by the same reference numerals as those in the first embodiment. Therefore, repeated descriptions are omitted in the second embodiment.

[0122] (Other Implementations)

[0123] In the first and second embodiments described above, the tapered portion 22B is provided on the carriage side terminal holder 22. However, the present disclosure is not limited thereto. For example, the present disclosure may be configured such that a recess is provided on the fixed side terminal holder 32, in which a portion of the carriage side terminal holder 22 is embedded, and a tapered portion may be provided at the entrance of the recess.

[0124] The trolley side terminal 21 and the fixed side terminal 31 of the first embodiment and the second embodiment are terminals for power supply. However, the present disclosure is not limited thereto. For example, the trolley side terminal 21 and the fixed side terminal 31 may be terminals for transmitting signals such as electrical signals or optical signals.

[0125] In the first and second embodiments described above, at least one of the carriage side terminal holder 22 and the fixed side terminal holder 32 is capable of displacement in the vertical direction. However, the present disclosure is not limited thereto. For example, the carriage side terminal holder 22 and the fixed side terminal holder 32 may be configured to be non-displaceable in the vertical direction.

[0126] In the first and second embodiments described above, the trolley side terminal 21, that is, the trolley side terminal retainer 22 can slide in the locking direction. However, the present disclosure is not limited to this. For example, the fixed side terminal retainer 32 and the trolley side terminal retainer 22 can be configured to be able to slide in the locking direction.

[0127] In the first and second embodiments described above, the attraction portion 25 is disposed on the carriage side terminal holder 22, and the magnet 33 is disposed on the fixed side terminal holder 32. However, the present disclosure is not limited thereto. For example, the attraction portion 25 and the magnet 33 may be eliminated, or the attraction portion 25 may be disposed on the fixed side terminal holder 32, and the magnet 33 may be disposed on the carriage side terminal holder 22.

[0128] In the above-mentioned trolley 10 of the first embodiment and the second embodiment, the spring 24 is provided, and the spring 24 applies an elastic force in the locking direction to the trolley side terminal 21, that is, the trolley side terminal holder 22. However, the present disclosure is not limited to this. For example, the spring 24 can be abolished, and the fixed side terminal 31 can be displaced in the locking direction, or the structure is provided with a spring, and the spring applies an elastic force in the locking direction to the fixed side terminal 31, that is, the fixed side terminal holder 32.

[0129] In the above-mentioned trolley systems of the first and second embodiments, the striker 2 and the fixed power receiving device 30 are provided on the wall 4. However, the present disclosure is not limited thereto. For example, at least one of the striker 2 and the fixed power receiving device 30 may be provided on the floor.

[0130] In the first and second embodiments described above, the trolley-side terminal 21 is composed of a convex component, and the fixed-side terminal 31 is composed of an S-shaped leaf spring that can contact the convex component. However, the present disclosure is not limited to this. For example, it can be configured such that the fixed-side terminal 31 is composed of a convex component, and the trolley-side terminal 21 is composed of an S-shaped leaf spring.

[0131] In addition, the present disclosure is not limited to the above-mentioned embodiments as long as it complies with the disclosure of the above-mentioned embodiments. It may be a configuration that combines at least two of the above-mentioned multiple embodiments, or it may be a configuration that abolishes any of the illustrated constituent elements or constituent elements that are described by marking symbols in the above-mentioned embodiments.

Claims

1. A trolley, characterized in that: have: a pedestal on which articles are placed; A wheel, the wheel being mounted on the pedestal; A locking device having a latch capable of engaging with a fixed striker; a guide member for guiding the striker to a position where the striker can be locked with the latch; as well as a trolley-side terminal capable of contacting a fixed-side terminal, wherein the fixed-side terminal is provided on a component to which the striker is fixed, and the trolley-side terminal is arranged at a position capable of contacting the fixed-side terminal when the latch is engaged with the striker, and The carriage is configured such that the guide member comes into contact with the striker before the carriage-side terminal comes into contact with the fixed-side terminal.

2. The trolley according to claim 1, characterized in that: The carriage further includes a spring, the spring applying an elastic force in a locking direction to the carriage-side terminal. The locking direction refers to the direction in which the base moves when the latch and the striker are locked. The carriage-side terminal is slidable in the locking direction.

3. The trolley according to claim 2, characterized in that: When the carriage-side terminal contacts the fixed-side terminal and the striker is locked with the latch, the spring is in an elastically deformed state.

4. The trolley according to claim 3, characterized in that: When the trolley side terminal contacts the fixed side terminal and the striker is locked with the latch, the position of the trolley side terminal is the connection completion position, and the direction from the fixed side terminal to the trolley side terminal is the inward direction. The carriage-side terminal can slide further to a position in the inward direction beyond the connection completion position.

5. The trolley according to claim 4, characterized in that: When the trolley side terminal contacts the fixed side terminal, a magnetic attraction is generated between the trolley side terminal retainer holding the trolley side terminal and the fixed side terminal retainer holding the fixed side terminal, and the magnetic attraction is used to increase the contact surface pressure between the trolley side terminal and the fixed side terminal.

6. The trolley according to claim 1, characterized in that: The carriage further includes a spring, the spring applying an elastic force to the carriage-side terminal, the direction of the elastic force being from the carriage-side terminal toward the fixed-side terminal. When the direction in which the pedestal moves when the latch and the striker are locked is taken as the locking direction, The carriage-side terminal is capable of sliding in the locking direction. The trolley is constructed so that when the trolley side terminal contacts the fixed side terminal, a magnetic attraction is generated between the trolley side terminal retainer holding the trolley side terminal and the fixed side terminal retainer holding the fixed side terminal, and the magnetic attraction is used to increase the contact surface pressure between the trolley side terminal and the fixed side terminal.

7. The trolley according to claim 6, characterized in that: The carriage-side terminal holder is displaceable in a direction orthogonal to the locking direction.

8. The trolley according to claim 6 or 7, characterized in that: The carriage-side terminal holder is provided with a recessed portion into which a part of the fixed-side terminal holder can be inserted. Furthermore, a tapered portion is provided at the entrance of the recessed portion, and an opening area of ​​the tapered portion increases toward the entrance.

9. A trolley system, characterized in that: have: Trolley; a firing pin, the firing pin being fixed; A fixed side terminal, the fixed side terminal being arranged on a component to which the striker is fixed; a fixed-side terminal holder, the fixed-side terminal holder holding the fixed-side terminal; a locking device, the locking device being disposed on the trolley and having a latch capable of engaging with the striker; a guide member disposed on the trolley and guiding the striker to a position where the striker can be locked with the latch; a trolley-side terminal provided on the trolley and arranged at a position capable of contacting the fixed-side terminal when the latch is engaged with the striker; a carriage-side terminal holder, which is provided on the carriage and holds the carriage-side terminal; a spring provided on at least one of the carriage and the member to which the striker is fixed, the spring applying an elastic force to at least one of the carriage-side terminal and the fixed-side terminal, the elastic force being directed in a direction to increase a contact surface pressure between the carriage-side terminal and the fixed-side terminal; and a magnet, the magnet being arranged in at least one of the trolley-side terminal holder and the fixed-side terminal holder, and generating a magnetic attraction force to increase the contact surface pressure between the trolley-side terminal and the fixed-side terminal when the trolley-side terminal contacts the fixed-side terminal, When the direction in which the pedestal moves when the latch and the striker are locked is defined as the locking direction, at least one of the carriage-side terminal and the fixed-side terminal holder can slide in the locking direction. Furthermore, the carriage is configured such that the guide member comes into contact with the striker before the carriage-side terminal comes into contact with the fixed-side terminal.

10. The trolley system according to claim 9, characterized in that: At least one of the carriage-side terminal holder and the fixed-side terminal holder is displaceable in a direction orthogonal to the locking direction. At least one of the carriage-side terminal holder and the fixed-side terminal holder is provided with a recessed portion into which a part of the other holder is inserted, Furthermore, a tapered portion is provided at the entrance of the recessed portion, and an opening area of ​​the tapered portion increases toward the entrance.

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