JP2013043533A - Carriage with caster - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a carriage with a caster, capable of lifting the caster in a state of placing a carrying object.SOLUTION: This carriage with the caster includes: a baseplate 3 having the caster 2; a bracket 4 fixed to the baseplate 3; an operation member 5 having a pedal 14 and rotatably supported by the bracket 4; a grounding member 6 liftably supported by the baseplate 3 in a state of rotatably connecting one end thereof to the operation member 5, grounded by downwardly moving in the direction for separating from the baseplate 3 in response to operation of the pedal 14 and putting at least one caster 2 in a state of separating from the ground surface; an operation member locking member 7 for fixing the operation member 5 in a state of grounding the grounding member 6; a pedal 27; and an operation member locking releasing member 8 for releasing a state of fixing the operation member 5 by the operation member locking member 7 in response to operation of the pedal 27. The pedal 14 and the pedal 27 are arranged so as to project outward from a peripheral edge part of the baseplate 3.

Description

  The present invention relates to a technology of a cart with casters that is attached to a lower portion of furniture or the like to move furniture or transport a beer case or the like.

  Patent Document 1 describes a cart 50 with casters that is attached to the lower part of furniture and moves the furniture as necessary. The furniture is fixed to the mounting plate 51 of the cart 50 with casters shown in FIG. When moving furniture, a handle is inserted into a through-hole 52 formed in the center of the mounting plate 51, and the handle is fitted to a nut 55 screwed into a bolt 53. When the bolt 53 is rotated, as shown in FIG. 12, as the bolt 53 rotates, the elevating plate 56 descends together with the nut 54, and accordingly, the first arm 57 is a connecting pin 58 that is a pivot point with the elevating plate 56. About the caster support member 59 side. As the first arm 57 is tilted toward the caster support member 59, the connection bracket 60 is separated from the lift plate 56, and accordingly, each caster support member 59 is separated from the lift plate 56. As the second arm 61 rises, the caster support member 59 moves downward, so that the caster 62 protrudes downward and contacts the floor surface.

JP 2003-225130 A

  In the cart 50 with a caster described in Patent Document 1, a handle is inserted into the through hole 52 formed in the central portion of the mounting plate 51 and the caster 62 is moved up and down. Therefore, for furniture to be placed on the cart 50 with a caster, etc. An escape hole for operating the handle is required. When a beer case or the like is placed on the mounting plate 51, a handle cannot be inserted into the through hole 52, and the caster 62 cannot be raised or lowered.

  An object of the present invention is to solve such a problem, and to provide a caster with a caster that can raise and lower the caster in a state where a transported article is placed.

  According to the first aspect of the present invention, there is provided a base plate having casters, a bracket fixed to the base plate, an operation member having a first pedal operated by an operator and rotatably supported by the bracket, and one end operated. It is supported by the base plate so as to be able to move up and down while being pivotably connected to the member, and is moved down in the direction away from the base plate in accordance with the operation of the first pedal and is grounded, and at least one caster is separated from the ground. A grounding member to be in a state; an operating member locking means for fixing the operating member in a state where the grounding member is grounded; and a second pedal operated by an operator, and the operating member locking means according to the operation of the second pedal Operating member lock releasing means for releasing the state where the operating member is fixed, and the first pedal and the second pedal are provided so as to protrude outward from the peripheral edge of the base plate.

  According to a second aspect of the present invention, the operating member locking means includes a pin movable along a long hole formed in the bracket in a state where the operating member locking means is spring-biased in a direction approaching the peripheral side of the operating member. The grounding member is configured to be fitted into a recess formed in the peripheral edge of the operating member while the grounding member is grounded to fix the operating member, and the operating member locking release means is rotated around the rotating shaft of the operating member. A pressing part that presses the pin fitted in the recess while being supported in a movable state is provided, and the pin that is fitted in the recess is pushed out by the operation of the second pedal. It is comprised so that a fitting may be cancelled | released.

  According to the first aspect of the present invention, the first pedal of the operating member and the second pedal of the operating member locking release means are provided so as to protrude outward from the peripheral edge of the base plate. The caster can be moved up and down with the mounted.

It is a front view of the trolley | bogie with a caster which concerns on the 1st Embodiment of this invention. It is a bottom view of a cart with casters. It is sectional drawing of the trolley | bogie with a caster at the time of a movement. It is sectional drawing of the trolley | bogie with a caster fixed. It is sectional drawing of an operation part. It is sectional drawing of the state in which the operation part was locked. It is a front view of the trolley | bogie with a caster which concerns on the 2nd Embodiment of this invention. It is a bottom view of a cart with casters. It is sectional drawing of the trolley | bogie with a caster at the time of a movement. It is sectional drawing of the trolley | bogie with a caster fixed. It is sectional drawing of the conventional trolley | bogie with a caster fixed. It is sectional drawing of the cart with a caster at the time of the conventional movement.

  Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. A cart 1 with casters includes a base plate 3 having casters 2, a bracket 4 fixed to the base plate 3, an operation member 5 supported by the bracket 4, and a grounding member supported by the base plate 3 so as to be movable up and down. 6, an operation member locking portion 7 which is an operation member locking means for fixing the operation member 5, and an operation member lock releasing portion which is an operation member locking release means for releasing the state where the operation member 5 is fixed 8.

  The base plate 3 is formed in a rectangular shape using, for example, a wooden flat plate. The casters 2 are respectively attached to the bottom corners of the base plate 3. In the present embodiment, all of the four casters 2 are free casters, but two of the four casters may be fixed casters.

  The bracket 4 is formed by bending a metal plate. The bracket 4 includes a main body portion 4a formed in a U-shaped cross section, and mounting seats 4b formed by bending the openings on both side surfaces of the main body portion 4a to the outside at right angles, and the end surface of the base plate 3 Installed in the center of the side. Round holes are formed on both side surfaces of the main body 4a, and the pins 10 are supported in the horizontal direction using the round holes. The operation member 5 and the operation member lock release portion 8 are rotatably supported by the pin 10. The bottom surface 11 forming the bottom of the U-shaped section is cut out from the vicinity of the round hole toward the end surface 12 side of the base plate 3. One end 31a of a torsion coil spring 31 described later is locked to the end 4c of the notch.

  The operation member 5 is formed by bending a metal plate. The operation member 5 includes two opposing flat plate portions 5a and 5a that rise vertically. A round hole is formed at one end of each of the two flat plate portions 5a, 5a, and the operation member 5 is rotatably supported by the pin 10 using the round hole. The two flat plate portions 5a and 5a are connected by a connecting portion 13 provided on the other end side. The connecting portion 13 is attached with a pedal 14 that is operated by an operator. The pedal 14 is formed in a mountain shape by bending a metal plate.

  The flat plate portions 5 a and 5 a are formed with a protruding portion 15 protruding downward between the pin 10 and the pedal 14. A round hole is formed in the protrusion 15, and the pin 16 is supported in the horizontal direction using this round hole. The grounding member 6 is rotatably supported by the pin 16.

  The grounding member 6 is formed in a U-shaped cross-section by bending a metal plate, and round holes are formed on the side surfaces at both ends in the longitudinal direction. The grounding member 6 is rotatably connected to the pin 16 using a round hole formed at one end. A pin 17 is inserted into a round hole formed on the other end portion side of the grounding member 6, and is supported by the base plate 3 through the connecting member 18 so as to be movable up and down. A resin leg 20 is attached to the bottom surface 19 of the grounding member 6 to be grounded when the grounding member 6 moves downward.

  The connecting member 18 is formed in a U-shaped cross-section by bending a metal plate, and round holes are formed on the side surfaces at both ends in the longitudinal direction. The connecting member 18 is rotatably connected to the pin 17 using a round hole formed at one end. A pin 21 is inserted into a round hole formed on the other end portion side of the grounding member 6 and is rotatably connected to the mounting seat 22.

  The mounting seat 22 is formed by punching a metal flat plate and includes a rising portion that rises in the vertical direction. A round hole oriented in the horizontal direction is formed in the rising portion, and the pin 21 is inserted into the round hole, and the other end of the connecting member 18 is rotatably supported.

  The operation member locking portion 7 includes a pin 24 that fits into a recess 23 formed on the arcuate outer periphery of the operation member 5. The pin 24 has a cylindrical shape, and is movable along a long hole 26 formed in the side surface of the bracket 4 in a state where the pin 24 is spring-biased by the tension coil spring 25. When the operator depresses the pedal 14 of the operation member 5, the operation member 5 rotates about the pin 10, and the pin 24 fits into the recess 23 of the operation member 5. As a result, the operation member 5 is fixed.

  The operation member locking release portion 8 is formed by bending a metal flat plate into a U-shaped cross section. A round hole is formed in the side surface of one end portion of the operation member locking release portion 8 and is supported rotatably on the pin 10 so as to cover the operation member 5 from above. A pedal 27 that is operated by an operator is provided at the other end of the operation member locking release portion 8. An arc portion 30 that is a pressing portion is formed on the end surface on the one end side, and when the operator steps on the pedal 27 and rotates the operation member locking release portion 8, the arc portion 30 resists the spring force. Then, the pin 24 is pressed. When the pin 24 comes out of the recess 23 of the operation member 5, the operation member 5 in which the other end 31 b of the torsion coil spring 31 is locked to the lower portion is caused by the spring force of the torsion coil spring 31 locked to the pin 10. Rotate to return to the position before operation. At this time, the operating member locking release portion 8 is pressed by the rotating operating member 5 and returns to the position before the operation.

  The operation procedure of the cart 1 with casters will be described. When an operator fixes the cart 1 with a caster in a state where a transported object is placed on the cart 1 with a caster, the pedal 14 of the operation member 5 provided so as to protrude outward from the peripheral edge of the base plate 3 is used. Depressing against the spring force of the torsion coil spring 31. The operation member 5 rotates around the pin 10, and the pin 24 spring-biased toward the pin 10 is fitted and fixed to the recess 23 of the operation member 5. One end of the grounding member 6 is pivotally connected to the projecting portion 15 of the operation member 5 and the other end is supported by the base plate 3 via the connecting member 18. . When the grounding member 6 is grounded, the two casters 2 installed on the operation side among the casters 2 attached to the base plate 3 are separated from the ground, and the caster-equipped cart 1 is fixed.

  When the fixed state is released and the cart 1 with casters is moved, the operator depresses the pedal 27 of the operation member lock release portion 8. The operation member locking release portion 8 rotates about the pin 10, and the arc portion 30 formed on the end surface on the one end side is spring-biased on the pin 10 side in the recess 23 of the operation member 5. It contacts the pin 24 that is fitted. The pin 24 is pressed by the arc portion 30 and comes out of the concave portion 23 of the operation member 5.

  When the operator removes his / her foot from the pedal 27 with the pin 24 coming out of the recess 23, the operating member 5 is rotated by the spring force of the torsion coil spring 31 and returns to the state before the pedal 14 is depressed. The operation member lock release portion 8 is pushed by the rotating operation member 5 and returns to the state before the pedal 27 is depressed together with the operation member 5. The grounding member 6 whose one end is rotatably connected to the protrusion 15 of the operating member 5 and whose other end is supported by the base plate 3 via the connecting member 18 moves upward while swinging. When the grounding member 6 leaves the ground, the two casters 2 that are separated from the ground come into contact with the ground, and the cart 1 with casters becomes movable.

  In the present embodiment, all of the four casters 2 are universal casters, but if the two casters 2 on the operation side of the four casters 2 are universal casters, and the remaining casters 2 are fixed casters, the grounding member Two fixed casters are grounded when 6 is grounded. If it does in this way, grounding member 6 can be grounded in the state where trolley 1 with a caster was stabilized.

  Next, a second embodiment of the present invention will be described with reference to FIGS. The same reference numerals are used for the same parts as those in the description of the first embodiment, and the description is omitted. The grounding member 6 includes a first grounding member 6a and a second grounding member 6b. The first grounding member 6 a is formed in a long shape and is installed at the center of the lower surface of the base plate 3. The second grounding member 6b is installed on both sides of the first grounding member 6a in parallel with the first grounding member 6a. The second grounding member 6b is installed between the two casters 2 and is shorter than the first grounding member 6a. Both end portions of the second grounding member 6b are swingably supported on the lower surface of the base plate 3 using the connecting member 18 in the same manner as the other end portion of the first grounding member 6a. The second grounding member 6b is coupled to the first grounding member 6a using the coupling bar 35. The connecting bar 35 is screwed and fixed to the bottom surfaces 19 of the first grounding member 6a and the second grounding member 6b. In addition, the leg part 20 is each attached to the bottom face 19 of the 1st grounding member 6a and the 2nd grounding member 6b at the longitudinal direction edge part.

  In the present embodiment, when the operation member 5 is fixed, the leg portions 20 of the first grounding member 6a and the second grounding member 6b are grounded at the six peripheral portions of the base plate 3, and four casters are provided. Since all of 2 are separated from the ground, it is possible to reliably prevent the caster 2 from rolling and the base plate 3 from moving.

  As described above, the base plate 3 provided with the casters 2, the bracket 4 fixed to the base plate 3, and the pedal 14 which is the first pedal operated by the operator are provided, and the operation supported rotatably on the bracket 4. The member 5 and one end of the member 5 are pivotably supported by the base plate 3 in a state of being pivotably connected to the operation member 5, and are moved down in the direction away from the base plate 3 and grounded as the pedal 14 is operated. A grounding member 6 that puts at least one caster 2 away from the ground, an operation member locking portion 7 that fixes the operating member 5 while the grounding member 6 is grounded, and a second pedal operated by the operator. The pedal 27 and the pedal 27 are provided with a pedal 27 and an operation member locking release portion 8 that releases the state where the operation member locking portion 7 fixes the operation member 5 as the pedal 27 is operated. Board Since the peripheral portion is provided so as to protrude outwardly, thereby lifting the caster 2 while placing the transported article.

  Further, the operating member locking portion 7 includes a pin 24 that is movable along a long hole 26 formed in the bracket 4 in a state in which the operating member locking portion 7 is spring-biased in a direction approaching the peripheral edge side of the operating member 5. Is configured to fit into a recess 23 formed on the peripheral edge of the operation member 5 in a state where the grounding member 6 is grounded to fix the operation member 5. An arc portion 30 that is a pressing portion that presses the pin 24 that is fitted in the recess 23 while being rotatably supported by the pin 10 that is the rotation shaft is provided. Pushes out the pin 24 fitted in the recess 23 and releases the fit between the pin 24 and the recess 23, so that the caster 2 can be moved up and down reliably.

DESCRIPTION OF SYMBOLS 1 Carriage with casters 2 Casters 3 Base plate 4 Bracket 4a Main body part 4b Mounting seat 4c End part 5 Operation member 5a Flat plate part 6 Grounding member 6a First grounding member 6b Second grounding member 7 Operation member locking part 8 Operation member locking Release portion 10, 16, 17, 21, 24 Pin 11 Bottom surface 12 End surface 13 Connection portion 14, 27 Pedal 18 Connection member 19 Bottom surface 20 Leg portion 22 Mounting seat 23 Recess 25 Tension coil spring 26 Long hole 30 Arc portion 31 Torsion coil spring 31a One end 31b The other end 35 Connecting bar

Claims (2)

A base plate with casters;
A bracket fixed to the base plate,
An operating member having a first pedal operated by an operator and supported rotatably on the bracket;
One end is pivotally supported by the base plate in a state of being pivotally connected to the operation member, and is moved downward in the direction away from the base plate in accordance with the operation of the first pedal, and is grounded, and at least one caster is grounded. A grounding member in a state separated from
Operation member locking means for fixing the operation member in a state where the grounding member is grounded;
A second pedal operated by an operator, and an operation member locking release unit that releases a state where the operation member locking unit fixes the operation member in accordance with the operation of the second pedal;
A cart with casters, wherein the first pedal and the second pedal are provided so as to protrude outward from the peripheral edge of the base plate. The operation member locking means includes a pin movable along a long hole formed in the bracket in a state of being biased by a spring in a direction approaching the peripheral side of the operation member, and the pin is in a state where the grounding member is grounded And is configured to be fixed to the operation member by fitting into a recess formed in the peripheral portion of the operation member,
The operation member locking release means includes a pressing portion that presses the pin fitted in the recess while being rotatably supported by the rotation shaft of the operation member, and the operation of the second pedal is performed as described above. 2. The cart with casters according to claim 1, wherein the pressing portion pushes out the pin fitted in the concave portion and releases the fitting between the pin and the concave portion.

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