EP1053733A2 - Fixation pour un brancard de type pelle - Google Patents

Fixation pour un brancard de type pelle Download PDF

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Publication number
EP1053733A2
EP1053733A2 EP00810436A EP00810436A EP1053733A2 EP 1053733 A2 EP1053733 A2 EP 1053733A2 EP 00810436 A EP00810436 A EP 00810436A EP 00810436 A EP00810436 A EP 00810436A EP 1053733 A2 EP1053733 A2 EP 1053733A2
Authority
EP
European Patent Office
Prior art keywords
tongue
shaped part
fork
snap lock
lock according
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.)
Withdrawn
Application number
EP00810436A
Other languages
German (de)
English (en)
Other versions
EP1053733A3 (fr
Inventor
Hans Fickler
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP1053733A2 publication Critical patent/EP1053733A2/fr
Publication of EP1053733A3 publication Critical patent/EP1053733A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61G—TRANSPORT, PERSONAL CONVEYANCES, OR ACCOMMODATION SPECIALLY ADAPTED FOR PATIENTS OR DISABLED PERSONS; OPERATING TABLES OR CHAIRS; CHAIRS FOR DENTISTRY; FUNERAL DEVICES
    • A61G1/00—Stretchers
    • A61G1/003—Stretchers with facilities for picking up patients or disabled persons, e.g. break-away type or using endless belts

Definitions

  • the present invention relates to a closure for a Scoop stretcher according to the preamble of claim 1.
  • a scoop stretcher as is known from the applicant's CH application 01806/95 comprises two longitudinal or support bars which can be connected to one another at both ends via cross connections. Each support bar has two angled connecting arms which are integrally formed on the ends of the support bar or are connected to it by means of sleeves.
  • One or more body support elements, also called blades, are arranged on the longitudinal spars. Depending on the embodiment of the scoop stretcher, the scoops are fixed or pivotally connected to the spars.
  • a male and a matching female element of a snap lock are arranged on the free ends of the connecting arms.
  • the snap closure essentially comprises a male tongue-shaped part and a female fork-shaped part with a spring-loaded holding bolt for receiving the tongue-shaped counterpart.
  • Crossbars, arms and fasteners form a frame that can be divided in half, which allows the patient to be admitted to the stretcher at the scene of the accident, and the patient to be transferred from the scoop stretcher to an operating table or a bed in the hospital under the most gentle conditions possible.
  • the closures When lifting and carrying the scoop stretcher when loaded, the entire weight of the patient rests on the closures. Nevertheless, the two halves of the scoop stretcher must be able to be separated from one another even under this load. Therefore, are simple.
  • the sliding element G of the fork-shaped part consists of a one-piece U-shaped plastic insert which is held in the fork by means of split pins and which in turn forms the groove for receiving the tongue.
  • a closure is described in which a plastic attachment is attached to the tongue-shaped part. This closure is shown in Figures 2b and 2c.
  • the stretcher stretcher is also used in air rescue, the weight and size problem is very relevant for market acceptance.
  • the plastic sliding element is integrated in the fork ( Figure 1), the load-bearing metal portion must also be made much larger.
  • the shape of the sliding elements is changed elastically under high pressure, which can lead to malfunctions.
  • the locking parts may jam to one another or the retaining bolt may jam in the locking part. Such malfunctions when loaded, i.e. with an injury on the stretcher, are not tolerated by the market.
  • FIG. 1 a scoop stretcher is outlined with two Closures 4, 4 'is provided.
  • the invention Closure can be attached to all shovel carriers and Bucket carriers that are already in use can be opened simple way with the closures according to the invention can be retrofitted.
  • the parts are at the ends of the connecting arms 3 remote from the spar of the snap lock 4 according to the invention.
  • the snap lock 4 essentially comprises a fork-shaped element 6, a tongue-shaped element 7 and a spring-loaded pin 5.
  • FIG. 2c An embodiment of the fork 60 according to FIG of the prior art.
  • a U-shaped plastic element 64 In the fork-shaped part 60 a U-shaped plastic element 64 is arranged. It defines a groove 60 for receiving a tongue-shaped part.
  • the tongue 70 shown in Figures 2b and 2c is also known.
  • the tongue-shaped element 70 bears on its Front end of a plastic element 74 which, as shown in FIG. 2c a very complex form is evident.
  • Tongue 7 and fork 6 are each made from only one solid element, preferably from cast aluminum.
  • fork element 6 and tongue element 7 each carry a connecting pin 8, which is used for fastening to cross bar 3. Both elements also have a stop 9
  • the fork 6 shown in Figures 3a and 4a defines a groove 60 for receiving the tongue 7.
  • the fork 6 is penetrated by a bolt 5 which is axially displaceably mounted in the two prongs.
  • the tines have a through hole into which the bolt 5 is movably fitted.
  • the lower tine has a recess 62 which is open towards the underside and in which a pressure plate 51 connected to the bolt 5 and a return spring 50 are arranged.
  • the bolt 5 can thus be moved by pressure on the plate 51.
  • the pin of the bolt 5 passes from the plate 51 via a guide cone 53 into an enlarged section 52 which is arranged at the end remote from the pressure plate.
  • This extended section protrudes into the groove 60 in the idle state, but can be pushed almost completely out of the groove 60 into the through hole 63.
  • the widened section 52 and the guide cone 53 project approximately into the center of the groove 60.
  • the associated tongue-shaped part 7 shown in FIGS. 3b and 4b has a split tongue which defines a continuous groove.
  • the groove consists of an insertion slot 71, which ends in an at least approximately round opening 75.
  • the insertion slot 71 ' has, at least in part, a smaller diameter than the enlarged section 52 of the bolt 5, but at least the same diameter as the narrower section of the bolt 5.
  • the insertion slot 75 is widened in a front region 71 ′ in order to facilitate the insertion of the bolt 5.
  • the diameter of the opening 75 corresponds at least to the diameter of the enlarged section 52.
  • the split tongue 7 has bevels 72 on both sides along the upper edge of the insertion slot 71.
  • the inclination of the bevels 72 corresponds approximately to the inclination of the guide cone 53.
  • These bevels 72 only allow the closure to be closed by inserting the tongue 7 into the fork 6. It is no longer necessary to press the plate 51, since the front region of the tongue 7 with the bevels 72 engages under the cone 53 and pushes the thickened region 52 of the bolt 5 out of the groove 60 against the spring force with increasing pressure.
  • the bolt 5 slides along the insertion slot 71 into the opening 75 and snaps through the restoring force of the spring 50 with its enlarged area 52 into the opening 75 of the tongue-shaped part.
  • the closure can now only be released again by pressing the plate 51 while simultaneously pulling apart the two halves of the scoop stretcher.
  • a coating 74 In the embodiment of the closure part according to the invention shown in FIG. 4b, at least the area of the surface of the tongue 7 which comes to lie within the groove 60 when the closure is closed is provided with a coating 74.
  • the coating 74 consists of a crosslinked polyester resin system with additives such as Teflon and is applied by the wet spray process and then baked at about 200 to 215 ° C.
  • the sintered plastic coating 74 is characterized by excellent abrasion resistance and good sliding properties. Extensive tests have shown that, for example, a coating with the polyester resin system LIOSAFLON 2K-D from Liosaplast AG in CH-9430 St. Margrethen has the desired properties. Coatings made of nylon (for example Rilsan) have similar advantageous properties.
  • the layer thickness is between 10 and 100 ⁇ m, advantageously between 20 and 40.
  • it is degreased and slightly roughened before the coating 74 is applied.
  • the coating 74 is applied to the tongue 7 and the walls of the groove 60 and the bolt 5 are made of bare metal.
  • the arrangement of the metal surfaces inside the fork protects them from external damage from the outset, but they are also less accessible for coating.
  • the tongue surface can easily be sprayed with the polyester resin and is reliably protected from nicks and scratches by the coating in the finished state.
  • the mechanical stability of the closure according to the invention is no longer impaired by the installation of large-volume plastic elements, as is the case with known closures.
  • the size and weight of the closure elements can be reduced to a minimum, that is, they can be optimized.
  • the coating does not deform elastically under the loads that occur, there is practically no more jamming.
  • the coating can also not come off and thus ensures that when the closure is closed, metal parts of both closure elements never come into contact with one another. It is therefore not possible to cold weld metal to metal even under the highest loads. After many years of use or the expiry of a service interval, the coating 74 can also be replaced very easily if necessary.

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Handcart (AREA)
  • Slide Fasteners (AREA)
EP00810436A 1999-05-21 2000-05-19 Fixation pour un brancard de type pelle Withdrawn EP1053733A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH95099 1999-05-21
CH95099 1999-05-21

Publications (2)

Publication Number Publication Date
EP1053733A2 true EP1053733A2 (fr) 2000-11-22
EP1053733A3 EP1053733A3 (fr) 2002-01-02

Family

ID=4198944

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00810436A Withdrawn EP1053733A3 (fr) 1999-05-21 2000-05-19 Fixation pour un brancard de type pelle

Country Status (1)

Country Link
EP (1) EP1053733A3 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115778365A (zh) * 2023-02-06 2023-03-14 潍坊新力超导磁电科技有限公司 一种核磁共振检查转运床

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29610596U1 (de) 1995-06-20 1996-09-19 Fickler, Hans, Wiesendangen Verschluß für eine Schaufelbahre

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29610596U1 (de) 1995-06-20 1996-09-19 Fickler, Hans, Wiesendangen Verschluß für eine Schaufelbahre

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115778365A (zh) * 2023-02-06 2023-03-14 潍坊新力超导磁电科技有限公司 一种核磁共振检查转运床

Also Published As

Publication number Publication date
EP1053733A3 (fr) 2002-01-02

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