FR2836467A1 - Wear compensator for driving wheel on pallet-handling trolley has spring with compression regulating screw for stabiliser wheel bar - Google Patents
Wear compensator for driving wheel on pallet-handling trolley has spring with compression regulating screw for stabiliser wheel bar Download PDFInfo
- Publication number
- FR2836467A1 FR2836467A1 FR0202271A FR0202271A FR2836467A1 FR 2836467 A1 FR2836467 A1 FR 2836467A1 FR 0202271 A FR0202271 A FR 0202271A FR 0202271 A FR0202271 A FR 0202271A FR 2836467 A1 FR2836467 A1 FR 2836467A1
- Authority
- FR
- France
- Prior art keywords
- spring
- wear
- lifter
- wheel
- pallet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000006835 compression Effects 0.000 title abstract description 6
- 238000007906 compression Methods 0.000 title abstract description 6
- 230000001105 regulatory effect Effects 0.000 title abstract 2
- 239000003381 stabilizer Substances 0.000 title description 2
- 230000000087 stabilizing effect Effects 0.000 claims description 3
- 238000009432 framing Methods 0.000 claims description 2
- 230000003019 stabilising effect Effects 0.000 abstract 1
- 239000000872 buffer Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B3/00—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor
- B62B3/04—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving means for grappling or securing in place objects to be carried; Loading or unloading equipment
- B62B3/06—Hand carts having more than one axis carrying transport wheels; Steering devices therefor; Equipment therefor involving means for grappling or securing in place objects to be carried; Loading or unloading equipment for simply clearing the load from the ground
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B2301/00—Wheel arrangements; Steering; Stability; Wheel suspension
- B62B2301/08—Wheel arrangements; Steering; Stability; Wheel suspension comprising additional wheels to increase stability
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
- B62B—HAND-PROPELLED VEHICLES, e.g. HAND CARTS OR PERAMBULATORS; SLEDGES
- B62B2301/00—Wheel arrangements; Steering; Stability; Wheel suspension
- B62B2301/20—Resilient wheel suspension using springs
- B62B2301/23—Resilient wheel suspension using springs the pressure of the wheel on the ground being controlled, e.g. by the load or the wheel slip
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Handcart (AREA)
Abstract
Description
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L-'invention se rapporte d'une façon générale à tout type de chariots de manutention et plus précisément aux chariots dits"transpalette"et elle concerne un dispositif de compensation d'usure de sa roue motrice et directrice. The invention relates generally to any type of handling carts and more specifically to so-called "pallet trucks" and it relates to a device for compensating for wear of its driving and driving wheel.
Comme on le sait, dans les chariots motorisés transpalettes, les extrémités des bras de fourche reposent sur des galets porteurs, tandis que le châssis du chariot est habituellement monté sur trois points d'appui constitués d'une roue centrale motrice et directrice encadrée de roulettes stabilisatrices montées sur des ressorts ou tampons élastiques. Pour améliorer la stabilité, on connaît la solution qui consiste à relier entre elles les roulettes latérales par un palonnier horizontal fixé au châssis de l'engin par l'intermédiaire de paliers. Chaque roulette est fixée à une extrémité du palonnier par l'intermédiaire d'une tige faisant corps avec le palonnier. Un ressort, intercalé entre le châssis et ledit palonnier exerce sur celui-ci un effort de torsion qui se répercute sur les deux roulettes dans le sens d'une augmentation de leur pression qui s'exerce sur le sol, renforçant ainsi la stabilité du chariot. As is known, in motorized pallet trucks, the ends of the fork arms rest on support rollers, while the chassis of the truck is usually mounted on three support points consisting of a central driving and steering wheel framed by casters stabilizers mounted on elastic springs or buffers. To improve stability, the solution is known which consists in connecting the lateral rollers to each other by a horizontal spreader bar fixed to the chassis of the machine by means of bearings. Each wheel is fixed to one end of the lifter by means of a rod integral with the lifter. A spring, interposed between the chassis and said spreader exerts on it a torsional force which is reflected on the two rollers in the direction of an increase in their pressure which is exerted on the ground, thus reinforcing the stability of the carriage. .
Grâce à ce système, on maintient les roulettes dans le plan de la roue motrice, quand l'engin est amené à circuler sur des sols irréguliers. Le réglage de la force du ressort du palonnier est assuré en atelier en fonction de l'usage prévu du chariot. Thanks to this system, the rollers are kept in the plane of the driving wheel, when the machine is brought to circulate on irregular grounds. The adjustment of the spring force of the spreader is ensured in the workshop according to the intended use of the carriage.
Il apparaît cependant un inconvénient lié au fait que la roue motrice et directrice est soumise à une usure rapide dont la conséquence est que les roulettes stabilisatrices supportent de plus en plus le poids du chariot, au détriment de l'adhérence de la roue centrale. On était donc amené à changer fréquemment la roue motrice ce qui évidemment impose l'immobilisation de l'appareil, et un surcroît de coût. However, there appears to be a drawback linked to the fact that the driving and steering wheel is subjected to rapid wear, the consequence of which is that the stabilizing rollers increasingly support the weight of the carriage, to the detriment of the adhesion of the central wheel. It was therefore necessary to frequently change the drive wheel which obviously requires immobilization of the device, and an additional cost.
La Demanderesse s'est donc attachée à trouver une solution à ce problème, qui permette d'utiliser beaucoup plus longtemps une roue motrice jusqu'à sa limite d'usure acceptable, et cela grâce à un simple réglage rapide et The Applicant has therefore endeavored to find a solution to this problem, which makes it possible to use a drive wheel much longer up to its acceptable wear limit, and this by means of a simple quick adjustment and
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accessible à l'utilisateur de l'engin, et qui permet de maintenir sur les roulettes latérales la pression initiale prévue, quel que soit l'état d'usure de la roue centrale. Ainsi est améliorée la stabilité de l'engin, mais aussi sa motricité, puisque l'usure de la roue centrale est compensée au fur et à mesure. accessible to the user of the machine, and which makes it possible to maintain the initial pressure provided for on the lateral rollers, whatever the state of wear of the central wheel. Thus is improved the stability of the machine, but also its traction, since the wear of the central wheel is compensated progressively.
L'invention a donc pour objet principal un dispositif de compensation d'usure de la roue motrice d'un chariot de manutention, comportant deux roulettes stabilisatrices encadrant ladite roue centrale motrice et directrice, les roulettes étant reliées entre elles par un palonnier horizontal, chacune par l'intermédiaire d'un levier faisant corps avec le palonnier et comportant un ressort intercalé entre le châssis du chariot et ledit palonnier, dispositif selon lequel le ressort est intercalé entre une biellette en prise sur le palonnier, et un étrier rapporté sur une partie haute du châssis, au dessus de son compartiment central, et selon lequel une vis de réglage de la compression dudit ressort est accessible par le haut, au niveau de la partie supérieure du capot coiffant le compartiment central. The main object of the invention is therefore a device for compensating the wear of the driving wheel of a handling trolley, comprising two stabilizing rollers framing said central driving and steering wheel, the rollers being connected together by a horizontal spreader bar, each by means of a lever integral with the lifter and comprising a spring interposed between the chassis of the carriage and said lifter, device according to which the spring is interposed between a rod engaged in the lifter, and a stirrup attached to a part high of the chassis, above its central compartment, and according to which a screw for adjusting the compression of said spring is accessible from above, at the top of the cover covering the central compartment.
D'autres caractéristiques et avantages de l'invention ressortiront de la description qui va suivre d'un exemple de réalisation dans lequel il est fait référence à la figure unique qui est une représentation partielle en perspective Ùu palonnier et des roulettes latérales, équipés du dispositif de compensation d'usure. Other characteristics and advantages of the invention will emerge from the description which follows of an embodiment in which reference is made to the single figure which is a partial representation in perspective Ùu lifting beam and side rollers, equipped with the device wear compensation.
On a schématisé sur la figure des parties limitées du châssis 1 d'un chariot sur lequel sont fixés des paliers 2 servant de support à un palonnier horizontal 3. A chaque extrémité du palonnier, et faisant corps avec lui, se développe un levier de renvoi 4, sensiblement horizontal, sur lequel est soudée une tige verticale 5 dont la partie inférieure porte une roulette pivotante 6. Sur le palonnier 3 est également en prise une biellette coudée 7 se terminant par un bec 8 de support. Une tige verticale de guidage 11 est montée coulissante sur ce bec et prend appui sur un étrier 9 rapporté sur une partie haute du châssis l, au We have schematized in the figure limited parts of the chassis 1 of a carriage on which are fixed bearings 2 serving as support for a horizontal spreader 3. At each end of the spreader, and being integral with it, a return lever develops 4, substantially horizontal, on which a vertical rod 5 is welded, the lower part of which carries a swivel caster 6. On the lifter 3 is also engaged a bent connecting rod 7 ending in a support spout 8. A vertical guide rod 11 is slidably mounted on this spout and bears on a stirrup 9 attached to an upper part of the chassis l, at
<Desc/Clms Page number 3><Desc / Clms Page number 3>
dessus de son compartiment central. Un disque 10 rapporté sur la tige 11 et solidaire de l'étrier sert de butée fixe à un ressort 12 coaxial à la tige. Le ressort est placé entre ce disque 10 et une rondelle 13 appliquée contre le bec 8 de support. On comprend que le mouvement de rotation du palonnier 3 se répercute sur la biellette 7, dans le sens d'une compression du ressort 12 entre le disque 10 et la rondelle 13, ou en sens inverse dans le sens du relâchement de la pression du ressort. Ceci garantit la stabilité du chariot. above its central compartment. A disc 10 attached to the rod 11 and integral with the stirrup serves as a fixed stop for a spring 12 coaxial with the rod. The spring is placed between this disc 10 and a washer 13 applied against the support spout 8. It is understood that the rotational movement of the lifter 3 affects the link 7, in the direction of compression of the spring 12 between the disc 10 and the washer 13, or in the opposite direction in the direction of the release of the spring pressure . This guarantees the stability of the carriage.
C'est ce ressort, dont la compression initiale entre le disque et la rondelle peut être modifiée, qui compense à la demande l'usure de la roue motrice centrale. Pour cela une vis de réglage 14 coopérant avec la tige 11 filetée intérieurement peut modifier l'écartement de base entre le disque et la rondelle, modifiant du même coup la pression exercée sur les roulettes latérales, en fonction de la diminution d'épaisseur de la bande de roulement de la roue motrice, due à l'usure. It is this spring, the initial compression of which between the disc and the washer can be modified, which compensates for the wear on the central drive wheel on demand. For this, an adjustment screw 14 cooperating with the internally threaded rod 11 can modify the basic spacing between the disc and the washer, thereby modifying the pressure exerted on the lateral rollers, as a function of the reduction in thickness of the tread of the drive wheel, due to wear.
On remarquera que la vis 14 se situe au dessus de l'étrier 9, c'est-à-dire au niveau de la partie supérieure du capot coiffant le compartiment central. La vis est donc parfaitement accessible par le haut pour l'utilisateur du
chariot, qui peut ainsi à l'aide d'une simple clé, modifier , rapidement et sans effort la compression du ressort, et agir de fait sur l'adhérence de la roue motrice.It will be noted that the screw 14 is located above the stirrup 9, that is to say at the level of the upper part of the cover covering the central compartment. The screw is therefore perfectly accessible from the top for the user of the
carriage, which can thus, using a simple key, quickly and effortlessly modify the compression of the spring, and act in fact on the grip of the drive wheel.
Claims (4)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0202271A FR2836467B1 (en) | 2002-02-22 | 2002-02-22 | DEVICE FOR COMPENSATING FOR THE WEAR OF THE POWER WHEEL OF A TRANSPORTETTE-TYPE HANDLING TROLLEY |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0202271A FR2836467B1 (en) | 2002-02-22 | 2002-02-22 | DEVICE FOR COMPENSATING FOR THE WEAR OF THE POWER WHEEL OF A TRANSPORTETTE-TYPE HANDLING TROLLEY |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| FR2836467A1 true FR2836467A1 (en) | 2003-08-29 |
| FR2836467B1 FR2836467B1 (en) | 2007-04-20 |
Family
ID=27676006
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR0202271A Expired - Lifetime FR2836467B1 (en) | 2002-02-22 | 2002-02-22 | DEVICE FOR COMPENSATING FOR THE WEAR OF THE POWER WHEEL OF A TRANSPORTETTE-TYPE HANDLING TROLLEY |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR2836467B1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106476865A (en) * | 2015-08-24 | 2017-03-08 | 吴娟香 | A kind of go-cart |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0480817A1 (en) * | 1990-10-09 | 1992-04-15 | Loc Manutention | Industrial truck with platform and increased stability |
| US5113960A (en) * | 1989-02-17 | 1992-05-19 | Eugen Prinz | Lift truck with a drive unit pre-tensioned by spring loading in the vertical direction |
| FR2698826A1 (en) * | 1992-12-07 | 1994-06-10 | Loc Manutention | Compensation assembly for pallet trolley - uses complementary balancing spring actuated through manual mechanism to allow for wear of tyres |
| DE4432620A1 (en) * | 1994-09-14 | 1996-04-11 | Jungheinrich Ag | Industrial truck |
-
2002
- 2002-02-22 FR FR0202271A patent/FR2836467B1/en not_active Expired - Lifetime
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5113960A (en) * | 1989-02-17 | 1992-05-19 | Eugen Prinz | Lift truck with a drive unit pre-tensioned by spring loading in the vertical direction |
| EP0480817A1 (en) * | 1990-10-09 | 1992-04-15 | Loc Manutention | Industrial truck with platform and increased stability |
| FR2698826A1 (en) * | 1992-12-07 | 1994-06-10 | Loc Manutention | Compensation assembly for pallet trolley - uses complementary balancing spring actuated through manual mechanism to allow for wear of tyres |
| DE4432620A1 (en) * | 1994-09-14 | 1996-04-11 | Jungheinrich Ag | Industrial truck |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106476865A (en) * | 2015-08-24 | 2017-03-08 | 吴娟香 | A kind of go-cart |
Also Published As
| Publication number | Publication date |
|---|---|
| FR2836467B1 (en) | 2007-04-20 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| CD | Change of name or company name |
Owner name: M.L.M., FR Effective date: 20120509 |
|
| TP | Transmission of property |
Owner name: MANITOU BF, FR Effective date: 20121002 |
|
| PLFP | Fee payment |
Year of fee payment: 15 |
|
| TP | Transmission of property |
Owner name: LMH SOLUTIONS, FR Effective date: 20160322 |
|
| PLFP | Fee payment |
Year of fee payment: 16 |
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| PLFP | Fee payment |
Year of fee payment: 17 |
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| PLFP | Fee payment |
Year of fee payment: 19 |
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| PLFP | Fee payment |
Year of fee payment: 20 |