CN2317304Y - Ladder device - Google Patents

Abstract

The utility model relates to a ladder device which at least comprises two longitudinal ladder rods on which an opposite combining surfaces and ladder lateral surfaces are arranged and a plurality of transverse pedal rods, and both ends of the transverse pedal rods are fixedly combined with the combining surfaces of the two longitudinal ladder rods mutually by fixedly combining elements respectively, wherein, grooves are formed on the longitudinal ladder rods, the bottoms of the grooves are formed on one side close to the combining surfaces, and the openings of the grooves are formed on one side close to the ladder lateral surfaces. Therefore, the combining tail ends of the combining elements are penetrated through the bottoms of the grooves and are combined with the rod ends of the transverse pedal rods, and the head ends of the fixedly combining elements are arranged in the grooves in a sinking way. Besides, decorative covers are covered on the open ends of the grooves to present the perfect appearance of the utility model.

Description

Ladder device

The utility model relates to a kind of ladder device, and the joint that particularly relates between a kind of bar and the bar is hidden covering, makes single unit system present the ladder device of exquisite perfect outward appearance.

In recent years along with scientific and technological progress, economic prosperity, living standard improves, and people are gradually in the life of trend pursuing high quality, for article pay attention to especially gently, thin, short, little and exquisite design attractive in appearance.Yet generally be used for maintenance or move to take the ladder of work such as eminence article, be regarded as a kind ofly by the instrument of ascending a height usually, only its appearance design is often ignored in the improvement on its firm antiskid function emphatically.Ladder generally can be divided into by upright type and two kinds on the type of standing, have two vertical terraced bars by upright type ladder, between two vertical terraced bars, equidistantly be linked with several horizontal treadles, yet the support of must tilting when using by upright type ladder is put, with its up and down two ends abut against respectively and reach ground aloft, during use by ascending a height by upright type ladder, but firm inadequately because of positioner is not set by upright type ladder, careless slightly collision promptly can be by against locating slippage, quite danger; Given this, but thereby develop and the convertible that has been widely used the at present type ladder of standing.Seeing also shown in Figure 1 is a kind of ladder device 1 in the past, it includes two pairs of vertical terraced bars 10, the top of the vertical terraced bar 10 of this two couple is to be articulated and can to open entire certain angle, and vertical terraced bar 10 has bonding surface 100, with respect to the side of the ladder face 101 of bonding surface 100 and be positioned at the bar side 102 of this relative bonding surface 100 and side of the ladder face 101 both sides; And the horizontal treadle 11 of number, laterally treadle 11 is equidistantly to be arranged on the spacing of two vertical terraced bars 10, laterally the two ends of treadle 11 respectively mat count bolt or rivet 12 is fixed on vertical terraced bar 10, the prominent cloth of head end that makes bolt or rivet 12 is on the side of the ladder face 101 of vertical terraced bar 10; Be pivoted with linkage 13 in addition between two pairs of vertical terraced bars 10,13 starts of mat linkage can make vertical terraced bar 10 make angle orientation, ladder device be it seems by the side slightly be the A type.

The use though the above-mentioned type of standing ladder device 1 in the past can firmly be stood, it still has shortcoming as described below: (1). and ladder integral body is not attractive in appearance:

Having most lofty eye-catching screws or rivet on the ladder surface, is destroy ladder integral body attractive in appearance.

(2). it is not good to grip sense of touch:

General ladder is when carrying grips, all recommend terraced bar place with palm, but because of terraced bar is rectangle moulding (seeing terraced bar section part among the figure), so its four corners place has the protruding corner angle of point, to concentrate by the corner angle transmission and compress palm when removing when putting forward ladder weight, it is uncomfortable to make us feel.

The purpose of this utility model is to provide a kind of overall appearance to present the ladder device of exquisite perfect no seam points.

Another purpose of the present utility model is to provide a kind of comfortable, as to meet ergonomics ladder device that grips.

The purpose of this utility model is achieved in that a kind of ladder device, comprises at least:

Two vertical terraced bars, has a bonding surface, on vertical terraced bar with respect to the side of the ladder face of bonding surface and be positioned at this relative bonding surface and the bar side of side of the ladder face both sides, and the horizontal treadles of number, laterally the two ends of treadle are fixed mutually with the suitable fixed element of the bonding surface mat of two vertical terraced bars respectively; Wherein:

Be provided with groove in terraced bar side, should connect the fixed element tail end of establishing in the treadle place at terraced pole pair is to be embedded in the treadle, and its head end is then heavy to be placed in the groove, and mat one decorative cover covers the slot opening place again, hides so that the abutment between terraced bar and treadle is hidden.

Again, decorative cover all is provided with corresponding concavo-convex longitudinally ripple with terraced bar surface, the section ripple of terraced bar side is continued mutually with the section ripple on decorative cover surface connect, and the design of concavo-convex ripple covers the crack line with what cover up the decorative cover both sides by this, presents perfect seamless visual sense; So make ladder device integral body present perfect outward appearance.

In addition, laterally the lateral surface of treadle is meet ergonomics curved to inner arc, so that excellent gripping sense of touch to be provided.

The utility model utilization design clever thought is hidden the joint between bar and the bar and is hidden, make the single unit system of ladder present finished outward appearance, and it is designed to the place of gripping to bend to be suitable for the assurance of staff to inner arc, and not only outward appearance is more pleasing, has also improved the comfortableness of using.

Below by most preferred embodiment and accompanying drawing ladder device of the present utility model is elaborated, in the accompanying drawing: Fig. 1 is the stereogram of ladder in the past;

Fig. 2 is the stereo appearance figure of the utility model one preferred embodiment;

Fig. 3 is the terraced bar of the utility model one preferred embodiment and the three-dimensional exploded view of treadle junction;

Fig. 4 is the terraced bar of the utility model one preferred embodiment and the part sectional view of decorative cover joint;

Fig. 5 is the pivoting device cross-sectional schematic at the top of the utility model one preferred embodiment.

For convenience of description, following embodiment, components identical is represented with identical label.

Shown in Fig. 2,3, the preferred embodiment of the utility model ladder device, it consists predominantly of: four vertical terraced bars 2, the horizontal treadle 3 of number, the fixed element 4 of number, two top treadles 5, number decorative cover 6 and connecting rod structure 7.

Four vertical terraced bars 2, be to be arranged in parallel in pairs, make each to forming soaring space 20 between vertical terraced bar 2, and have the bonding surface 21 that relies on soaring space 20 on vertical terraced bar 2, with respect to the side of the ladder face 22 of bonding surface 21 and be positioned at the bar side 23 of this relative bonding surface 21 and side of the ladder face 22 both sides; See also Fig. 3, shown in 4, side of the ladder face 22 surfaces are provided with the concavo-convex longitudinally ripple 24 of number, and between the bonding surface 21 of vertical terraced bar 2 and side of the ladder face 22, be formed with two grooves 25 longitudinally, the bottom land 250 of groove 25 is formed at nearly bonding surface 21 sides, the opening 251 of groove 25 then is formed at nearly side of the ladder face 22 sides, and in the two side ends of groove 25 openings 251 is formed with the holder 26 of tool caulking groove 260, and holder 26 is positioned on the sidewall of groove 25 openings 251 and vertically is provided with recessed rail 261, make the caulking groove 260 in recessed rail 261 and the holder 26 be communicated with, and be provided with in bonding surface 21 both sides arc protruding fasten edge 27; As shown in Figure 2, be arranged with choker block 28 in the top of terraced bar 2 in addition, and be arranged with the on-slip cushion block 29 of the triangle taper of pre-determined tilt angle in the bottom, promptly when vertical terraced bar 2 stands vertically, form predetermined angle between on-slip cushion block 29 and ground.When ladder device is closed when erectting, still can bases oneself upon and support upright by 29 4 of the on-slip cushion blocks that four vertical terraced bars, 2 bottoms tilt.

The horizontal treadle 3 of number, be that equidistant the arrangement is erected on 2 formed soaring spaces 20 of two pairs of vertical terraced bars, laterally treadle 3 is to be the horizontal body of rod of the hollow of aluminium extruded type, its both sides have corresponding inlay card at the abutment face 30 that fastens edge 27 inboards, abutment face 30 near the outside is short near the length of inboard abutment face 30, and abutment face 30 tops are linked with the face of putting 31 of stepping on of parallel on-slip cushion block 29 bottom surface angles, make to step on and form predetermined angle of slope between the face of putting 31 and the vertical terraced bar 2, and laterally be concaved with the on-slip ditch 32 of several proper alignment on the surface of stepping on the face of putting 31, rank is connected with to the curved gripping surface 33 of inner arc between abutment face 30 bottoms, and convex with the horizontal positioning seat 34 of number in groove 25 places of the corresponding vertical terraced bar 2 of treadle 3 inwalls, be formed with the combined hole 35 of circular perisporium in the positioning seat 34.

The fixed element 4 of number, can be bolt or rivet, be to be example with the bolt in this embodiment, by aforementioned as can be known laterally treadle 3 two ends respectively with the bonding surface 21 of vertical terraced bar 2 slightly tool fasten the location, again fixed element 4 elements are passed groove 25 bottom lands 250 in conjunction with tail end 40, and in the fixed combined hole 35 that is combined in horizontal treadle 3 rod ends of spiral shell, and make head end 41 heavy the placing in the groove 25 of fixed element 4, horizontal treadle 3 can be fixed between two vertical terraced bars 2.

Cooperate Fig. 2, shown in 5, be positioned at the top treadle 5 on two pairs of vertical terraced bar 2 tops, general and the horizontal treadle 3 of its structure together, only the relative inner of this top treadle 5 is to have protruded out joining piece 50 in opposite directions, wherein the downward crotch of the ora terminalis of a joining piece 50 forms the pivot seat 51 of circular arc, the then curved downwards convex arc of the ora terminalis of another joining piece 50 expands and forms circular pivot 52, and pivot 52 can be inserted in the pivot seat 51 by the corresponding pivot in the distolateral place of pivot seat 51, the transverse width of pivot 52 is shorter than the width of pivot seat 51, so as the Hou that pivot 52 pivots are inserted in pivot seat 51, it is solid in pivot seat 51 so that pivot 52 is supported that its two end must be screwed into bolt respectively; The mat said apparatus makes the connection that is pivoted relatively of the top of two pairs of vertical terraced bars 2; When two pairs of vertical terraced bar 2 pivot whizs are opened, top treadle 5 and horizontal treadle 3 horizontal plane parallel to the ground.

Number decorative cover 6, it is groove 25 ora terminalis plug-in cards embedding by vertical terraced bar 2, and be placed on opening 251 places of groove 25 admittedly, decorative cover 6 both end sides are bent inwards, form the pin 60 of corresponding plug-in card in the caulking groove 260 of holder 26, and corresponding recessed rail 261 places convex with vertical flange 600 in pin 60 outsides, and find out by Fig. 2,4, decorative cover 6 surfaces are formed with the vertical concavo-convex ripple of corresponding side of the ladder face 22, connect so the section ripple of side of the ladder face 22 will continue mutually with the section ripple on decorative cover 6 surfaces.Wherein, and the mutual matched card knot between the recessed rail 261 of mat, flange 600 and holder 26, the pin 60 and form card knot device.

As shown in Figure 2, linkage 7 is to be hubbed between two pairs of vertical terraced bars 2, and the effect of mat linkage 7 can be assisted the location of vertical terraced bar 2 being made all angles, makes ladder device it seems it is the A type that is stable by the side; But because of linkage 7 is general device commonly used, so this not superfluous stating.

By above device as can be known, ladder device of the present utility model is compared its advantage than prior art and is: (1). and the utility model integral surface is perfect, elegant in appearance:

The utility model is provided with groove 25 in terraced bar 2 and treadle 3 junctions, and the fixed element 4 that will connect terraced bar 2 and treadle 3 is arranged in groove 25 places, utilizes decorative cover 6 that the abutment is hidden covering again.Again, cover the crack line for what cover up decorative cover 6 both sides, be all to be provided with corresponding concavo-convex longitudinally ripple in decorative cover and terraced bar surface, the section ripple of terraced bar side is continued mutually with the section ripple on decorative cover surface to be connect, reach the surface and present perfect seamless visual sense effect, make the utility model integral body present perfect exquisite outward appearance.

(2). it is good that ladder grips sense of touch:

The lateral surface of the horizontal treadle 3 of the utility model is for meeting ergonomics to the curved design of inner arc for the portable place that holds up of people, and is to provide ladder excellent gripping sense of touch, quite comfortable in the use.

By above structure, the utility model really has the practicality on the industry as can be known.So can improve the competitiveness on the market.

Claims (6)

1. ladder device comprises at least:

Two vertical terraced bars, has a bonding surface, on vertical terraced bar with respect to the side of the ladder face of bonding surface and be positioned at this relative bonding surface and the bar side of side of the ladder face both sides, and the horizontal treadles of number, laterally the two ends of treadle are fixed mutually with the suitable fixed element of the bonding surface mat of two vertical terraced bars respectively; It is characterized in that:

Be formed with groove between the bonding surface of described vertical terraced bar and the side of the ladder face, the bottom land of groove is formed at nearly bonding surface side, the opening of groove then is formed at nearly terraced side, then cover the decorative cover that can be fixed in openend in the slot opening end in addition, fixed element pass the groove bottom land in conjunction with tail end, and combine with the rod end of horizontal treadle, and making heavy the placing in the groove of head end of fixed element, decorative cover is placed on the slot opening end admittedly.

2. ladder device as claimed in claim 1 is characterized in that: described slot opening end both sides are provided with the decorative cover both sides and match the card knot device that can block knot mutually mutually.

3. ladder device as claimed in claim 2, it is characterized in that: described card knot device has the vertical recessed rail of being located at the openend sidewall, and be provided with the vertical flange of corresponding inlay card in recessed rail in the decorative cover sidewall, and in openend, be formed with holder, the distolateral pin of corresponding plug-in card in holder that then be bent to form of decorative cover.

4. ladder device as claimed in claim 1, it is characterized in that: described horizontal treadle is the hollow lever for aluminium extruded type, the groove of the corresponding vertical terraced bar of its inwall convexes with the horizontal positioning seat of number, be formed with combined hole in the positioning seat, binding member be fixed in combined hole in conjunction with tail end passes the groove bottom land.

5. ladder device as claimed in claim 1, it is characterized in that: the side of the ladder face surface of described vertical terraced bar is provided with concavo-convex longitudinally ripple, and the decorative cover surface also is provided with the concavo-convex longitudinally ripple of correspondence, and the section ripple of terraced bar side continues mutually with the section ripple on decorative cover surface and connects.

6. ladder device as claimed in claim 1 is characterized in that: the lateral surface of described horizontal treadle is for curved to inner arc.

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