CN2713113Y - Ladder device - Google Patents

Abstract

The utility model provides a ladder device capable of easily changing the ladder posture and appearance. The ladder device comprises a supporting component fixed on a wall surface between a lower floor and an upper floor or a floor board surface of the upper floor, a ladder part which is capable of moving up-and-down opposite to the supporting component in a freely switching mode of a standing posture that the ladder is capable of standing uprightly opposite to a wall surface and a placing posture that the ladder is placed along the wall surface almost upright. In addition, the ladder part is capable of freely rotating around the supporting component. Moreover, a spring component for providing spring force opposite to the supporting component is arranged in a ladder column of the ladder part at the direction of raising up the ladder part.

Description

Ladder device

Technical field

The utility model relates to the posture changing ladder device easy and attractive in appearance of ladder.

Background technology

Up to now, people have carried out the various trials that effectively utilize space in the building in order to realize comfortable living space and working space.For example use as storage bay or be provided with under situation that (to call loft in the following text) between the interlayer of one deck between with two layers use as bedroom and child's room in that penthouse is set, must be useful on the ladder device of going downstairs upstairs.

Safety when not only requiring up and down to this ladder device, but also require easy folding and unfolding, move and with the outward appearance of indoor coordination etc. easily.For example in Japanese publication communique 2002-89162 communique, put down in writing the setting and the folding and unfolding that under the prerequisite that does not reduce safety, make ladder and be easy to ladder device.This ladder device by be installed in downstairs with upstairs between wall top support with can with respect to support up and down direction move freely and the ladder main body that is connected freely to rotate constitutes.Described ladder main body can be under the state that erects by wall the use posture of ground connection and freely switch on the belowstairs floor in its bottom near in the folding and unfolding posture of wall nearly erect any.In addition, balance weight mechanisms such as balance weight assembly above easily the ladder main body being remained on and air damper are being set on the support of this ladder device.

, when on support, above-mentioned balance weight mechanism being set, holding components is maximized, obstacle when becoming the holding components lifting, or cause the indoor so inappropriate problem attractive in appearance of infringement, in this regard, in existing ladder device, still there is the leeway of improvement.

The utility model content

Therefore, the utility model proposes in view of the premises, and its purpose is to provide a kind of posture of easy change ladder and ladder device attractive in appearance.

That is to say, ladder device of the present utility model comprises: the holding components on wall between fixing belowstairs floor and upstairs the floor or above-mentioned upstairs the floor, relative above-mentioned holding components can move freely and the ladder portion of connection freely to rotate at above-below direction, this ladder portion can lean against the use posture on the above-mentioned wall and freely switches near in the folding and unfolding posture of above-mentioned wall nearly erect any upright, it is characterized in that, the spring members that spring force is provided in the direction of raising ladder portion with respect to holding components is housed in the column of ladder portion.

Because in ladder device of the present utility model, the spring part that can utilize receipts to be contained in the ladder column easily lifts ladder portion, so change the posture of ladder portion easily.In addition, be contained in the ladder column, can prevent that holding components from maximizing by spring part is received, and then the obstacle can prevent that holding components from becoming lifting the time, the indoor problem attractive in appearance of infringement produced.

The ladder portion of above-mentioned ladder device preferably includes a pair of ladder column that is formed by the channel member that has C shape section separately and is connected a plurality of pedals between the ladder column, by the slide unit that remains in the channel member slidably and be installed on the holding components the relative holding components of ladder portion be can move freely along the vertical direction.At this moment, can realize that ladder portion successfully moves up and down.In addition, because the end face that is connected the pedal between a pair of ladder column is connected with the contact of channel member external surface, so can improve the stability of pedal.

In above-mentioned ladder device, preferably slide unit has axial region, by above-mentioned axial region is remained in the dead eye that is arranged on the holding components rotationally, makes ladder portion free to rotate with respect to holding components.At this moment except realizing that ladder portion can also realize the smooth rotation of ladder portion successfully moving up and down.

In above-mentioned ladder device, preferably slide unit has H shape section, the inner face sliding-contact of the two side of slide unit and channel member.At this moment, can realize that by the contact area that reduces ladder column and slide unit ladder portion moves up and down more smoothly.In addition, even at the head of the connector that is used to connect ladder column and pedal to the outstanding occasion of the inner surface of ladder column, by means of the space between the slide unit two side that is arranged on H shape section, the head of connector also can not become the moving disorder of slide unit.

In addition, be preferably in the above-mentioned ladder device, above-mentioned spring members is a leaf spring, one end of leaf spring is connected with winding mechanism on being installed on the ladder column, the other end is connected with slide unit, between winding mechanism and slide unit, leaf spring does not contact with the inner surface of channel member and almost parallel ground extends.At this moment, can prevent from when spring members is flexible to contact and produce noise with the ladder column.In addition, because the winding mechanism of leaf spring is arranged in the ladder portion, can makes the further compactness of holding components and form simple shape.

Be preferably in the above-mentioned ladder device, a part that is arranged on the dead eye on the above-mentioned holding components is opening externally, by above-mentioned opening, the axial region of above-mentioned slide unit is inserted in the above-mentioned dead eye, simultaneously keeper is installed in the front end of axial region, on holding components, integrally is provided for the removal stop section that prevents that axial region from deviating from from dead eye.At this moment, slide unit more is easily mounted on the holding components that is fixed on the wall.And because prevent that the removal stop section of slide unit axial region and holding components from forming as one, so can expect to reduce the component count of ladder device, the safety that has further improved ladder simultaneously.

In above-mentioned ladder device, ladder portion preferably includes: the handrail that is connected with the ladder column and have the installing hole that can insert handrail one end and winding mechanism can be received simultaneously and be contained in inner lid.By being used for this lid is fixed on the end that fixture front end on the ladder column is locked in the above-mentioned handrail of the installing hole that inserts above-mentioned lid, above-mentioned lid and handrail are fixed on the ladder column.At this moment, can when lid being installed on the ladder column, be installed in handrail on the ladder column, and can reduce the component count of ladder device.

With reference to being used to implement best mode of the present utility model below the accompanying drawing basis, can understand the purpose of this utility model and advantage more clearly.

Description of drawings

Fig. 1 sees the stereogram that relates to most preferred embodiment ladder device of the present utility model from face side;

Fig. 2 is a stereogram of seeing this ladder device from rear side;

Fig. 3 is the exploded perspective view of the ladder portion of this ladder device;

Fig. 4 is the partial sectional view of the ladder column that is connected with holding components by slide unit of expression;

Fig. 5 is illustrated in the exploded perspective view that slide unit is installed on the holding components;

Fig. 6 is the partial sectional view of the spring members of expression folding and unfolding in the ladder column;

Fig. 7 is the action specification figure of this ladder device;

Fig. 8 relates to the partial perspective view of ladder device of the modified example of the foregoing description;

Fig. 9 relates to the partial perspective view of ladder device of another modified example of the foregoing description.

The specific embodiment

Embodiment shown in inciting somebody to action with reference to the accompanying drawings below describes the utility model in detail.

As depicted in figs. 1 and 2, ladder device of the present utility model mainly by be fixed on downstairs and wall upstairs or the holding components A on the floor upstairs, comprise a pair of ladder column 1 that extends in parallel, be connected a plurality of pedals 6 between the ladder column 1 and be installed in the B of ladder portion of the handrail 5 on the ladder column 1 and be connected holding components A and the B of ladder portion between slide unit 7 constitute.

As shown in Figure 3 and Figure 4, the ladder column 1 of the B of ladder portion is channel member 10 formations of " C " shape or " U " shape by section.That is to say, this channel member 10 by the base plate 11 of elongated plate-like, in the both sides of this base plate integrally formed sidewall 12 and constitute to the inner outstanding flange 13 of the groove of channel member from the front end of this sidewall.The recess 60 that is arranged on the end of pedal 6 embeds the back side of channel member 10, firmly fixes by the such fixture 63 of pin by the through hole 14 that is arranged on the channel member base plate 11.In addition, ladder column 1 and pedal 6 are made by the such metal material of aluminium alloys.Numbering 15 is to limit the block that the aftermentioned slide unit 7 that remains on slidably in the ladder column 1 moves up and moves down scope among the figure.Can limit the undue of the B of ladder portion by this block and move, thus the safety that improves ladder device.

As shown in Figure 5, holding components A has by the installing plate 20 that contacts with wall or floor and roughly " L " shape of constituting to the outstanding support plate 21 of approximate vertical direction from an end of this installing plate.Installing hole 22 is set on installing plate 20,, holding components A is securely fixed on wall or the floor by in installing hole 22, inserting the fixing screw (not shown).The dead eye 23 of the axial region 75 that keeps slide unit 7 is set on support plate 21 free to rotately, and the part of this dead eye is opened to the outside by peristome 24, can axial region 75 be inserted in the dead eye 23 by this opening 24.

As shown in Figure 5, the main body 70 that formed by smooth synthetic resin such as polyacetal resins of slide unit 7 and axial region 75 vertically outstanding from body surfaces and have a metal material system of thread groove 76 at front end constitute.Main body 70 has by pedestal 71 and integrally formed sidewall 72 constitutes in the pedestal both sides " H " shape section.Two leading sections of each sidewall form the thinner shape in front.As shown in Figure 4, slide unit 7 for example is to be inserted into main body 70 internal shapings and to form one by being arranged on substrate 73 on axial region 75 bottoms.

As shown in Figure 4, so that axial region 75 is when the outstanding mode in outside is received slide unit 7 in the groove that is contained in channel member 10, the surface of one end of each sidewall 72 of slide unit 7 and the base plate 11 of channel member touches, and the flange 13 of the other end and channel member touches, and the inner surface of the external surface of the sidewall 72 of slide unit 7 and the sidewall 12 of channel member touches.By making such structure, slide unit 7 is successfully moved in the groove of channel member 10.In addition, because the flange 13 of sidewall of slide unit 7 72 and channel member touches, so can prevent that slide unit from coming off from channel member.And then, because slide unit has " H " shape section, so the pedestal 71 that connects between the two side 72 forms the state that floats from the base plate 11 of channel member.The head 65 of the fixture 63 that pedal 6 is connected with channel member 10 is contacted with the slide unit 7 that moves in the groove of channel member 10.

As mentioned above, after the axial region 75 with slide unit 7 inserts in the dead eye 23 of holding components A, across pad 77 grades the fixture 78 as the nut is screwed in the thread groove 76 of a front end, therefore, slide unit 7 can freely rotate around axial region 75 relative to holding components A.In addition, has slip-off preventing that section is roughly " L " shape with preventing wall 25 because on the support plate 21 of holding components A, integrally be provided with, so can make slide unit 7 be in the state that is installed on the holding components A by the part 78 that is locked, thereby prevent that effectively axial region 75 from coming off from the opening 24 of holding components A.Numbering 79 is the decoction caps that cover on the fixture among the figure.

Receipts are contained in as the slide unit 7 in the channel member 10 of ladder column 1 shown in the arrow of Fig. 6, are pulled down by leaf spring 4.One end of leaf spring 4 is connected with wireline reel 40 as the leaf spring winding mechanism, the other end is connected with slide unit 7, therefore, leaf spring 4 can not contact with the base plate 11 of channel member 10 with section between the slide unit 7 at wireline reel 40 in ladder column 1, and almost parallel ground extends.In addition, as shown in Figure 6, leaf spring 4 can be connected on the substrate 73 that is shaped in the main body 70 of inserting slide unit with the fixture as the Screw 41 with being connected of slide unit 7 and realize.As shown in this embodiment, if adopt leaf spring 4, then can be suppressed at the spring sound that produces when slide unit 7 slides as spring part.In addition, though, be slide unit 7 to be pulled to the below, also can slide unit be subdued with elastic force by leaf spring 4 elastic force at present embodiment.

As shown in Figure 3, wireline reel 40 is rotatable to remain in the spool housing of being made by the synthetic resin material 43 freely, has accommodated in inside under the state of wireline reel housing 43 is installed on the channel member 10.In addition, mounting cover 80 on channel member 10, and described lid 80 is provided with the slotted hole 81 that spreads all over slide unit 7 whole movings range, and the axial region 75 of slide unit 7 is projected into the outside by this slotted hole.

In addition, as shown in Figure 3, wireline reel housing 43 is provided with the through hole 45 of an end that can insert handrail 5.Rotate at wireline reel 40 that to remain on housing 43 freely inner and an end of handrail 5 inserted under the state in the through hole 45, wireline reel housing 43 is configured on the assigned position of ladder column 1, then as shown in Figure 6, fixture 47 by will be as the screw is from pedal 6 one sides are inserted into through hole 17 on the base plate 11 that is arranged on channel member 10, the threaded portion that makes the fixture front end is threaded with handrail 5 in the inserting hole 45 that inserts wireline reel housing 43, can carry out installation and handrail 5 the installation toward ladder column 1 on of wireline reel housing 43 on the ladder column 1 simultaneously.

And as shown in Figure 3, the other end of handrail 5 is connected on the ladder column 1 by handrail installed part 90.That is to say, under the state that the other end of handrail 5 is inserted in the hole 91 that is arranged on the handrail installation portion spare 90, ladder column 1 is configured in assigned position (covering the position of 80 tops), then uses fixture 92 that handrail installation portion spare 90 is fixed on the ladder column 1 as the Screw from pedal 6 one sides.

The assemble method of following simple declaration ladder device described in the utility model.At first the installing plate 20 of holding components A is fixed on downstairs and wall or floor upstairs upstairs on.Then, axial region 75 by the slide unit 7 in the ladder column 1 that receipts is contained in the B of ladder portion inserts in the dead eye 23 of holding components A, by pad 77 nut 78 and thread groove 76 threaded engagement are fixed, the B of ladder portion is clipped slide unit 7 be connected with holding components A.At this moment because the axial region of slide unit 7 inserts in the dead eye 23 of holding components A by opening 24, so that the B of ladder portion becomes easy toward the installation exercise on the holding components A.

According to above-mentioned ladder device, mobile because the slide unit 7 that keeps by holding components A can slide ladder column 1 in, so the B of ladder portion energy move up and down along the length direction of ladder column 1 freely relative to holding components A.In addition because slide unit 7 by holding components A rotate freely remain on axial region 75 around, so the result can freely rotate the B of ladder portion with respect to the holding components A on its top.Therefore, can be arbitrarily shown in solid line among Fig. 7, the B of ladder portion is being arranged on by the bottom that stands in the state ladder column on the wall in use posture on the floor downstairs and the folding and unfolding posture shown in the chain-dotted line among Fig. 7, and is freely switching near the wall nearly erect.At this moment, because the B of 4 pairs of ladder portions of leaf spring has applied the spring force that relative holding components A makes progress, can be easy to lift the B of ladder portion.In addition, be contained in the ladder column 1,, can prevent the obstacle when holding components A becomes lifting again, or damage indoor impropriety such as attractive in appearance so can prevent the maximization of holding components because leaf spring 4 is received.

Fig. 8 represents the modified example of the ladder device of present embodiment.In this modified example, holding components A is by carrying out installing plate 20 that face contacts with wall or floor and constituting from the outstanding axial region 21a that is roughly " L " shape of this installing plate.And use sheet material 10a with slotted hole 16 as the ladder column of the B of ladder portion, the front end of axle 21a was inserted this slotted hole 16.In addition, as spring part, use helical spring 4a, and in slotted hole the configuration this helical spring, respectively a helical spring end is connected on the axial region 21a of holding components A simultaneously, the other end is connected in the hole 18 that is arranged on the sheet material 10a, in the ladder device of relevant this modified example, also can obtains the effect same with first embodiment.

Fig. 9 represents the modified example of the ladder device of present embodiment.In this modified example, holding components A is by carrying out installing plate 20 that face contacts with wall or floor and constituting from the outstanding axial region 21b that is roughly " L " shape of this installing plate.And use channel member 10b with " U " shape section as the ladder column of the B of ladder portion, in the groove of this channel member, receive the helical spring 4b that pretends to spring part, end with helical spring 4b is connected on the axial region 21b of holding components A respectively, and the other end is connected on the pin 19 that is arranged on the channel member 10b.In the ladder device relevant, also can obtain the effect same with the 1st embodiment with this modified example.

In addition, though abovely according to preferred embodiment the ladder device relevant with the utility model has been described, these just are used to understand technological thought of the present utility model, should not be construed as qualification of the present utility model.For example, as Fig. 8 and shown in Figure 9, in the scope that does not break away from the utility model technological thought, can suitably change various structure of the present utility model.

Claims (7)

1, a kind of ladder device comprises: holding components, on wall between its fixing belowstairs floor and the floor upstairs or described upstairs the floor; Ladder portion, it can be by standing in the use posture on the described wall and freely switching near in the folding and unfolding posture of described wall nearly erect any, can move freely and connection freely to rotate at above-below direction by described relatively holding components, it is characterized in that, in the ladder column of ladder portion, receive relative holding components is being raised provides spring force on the direction of described ladder portion spring members is housed.

2, ladder device as claimed in claim 1, it is characterized in that: described ladder portion comprises: a pair of ladder column that is formed by the channel member that has " C " shape section configuration separately, be connected a plurality of pedals between the described ladder column, by remaining in the described channel member slidably and being installed in slide unit on the holding components, described ladder portion is freely moved on above-below direction relative to holding components.

3, ladder device as claimed in claim 2 is characterized in that: described slide unit has axial region, by described axial region is remained in the dead eye that is arranged on the described holding components rotationally, makes the relative holding components of ladder portion free to rotate.

4, ladder device as claimed in claim 2 is characterized in that: described slide unit has H shape section, the inner surface sliding-contact of the two side of described slide unit and described channel member.

5, as each described ladder device in the claim 2 to 3, it is characterized in that: described spring members is a leaf spring, one end of leaf spring is connected with winding mechanism on being installed in the ladder column, and the other end is connected with described slide unit, between described winding mechanism and slide unit, leaf spring does not contact with the inner surface of channel member, and almost parallel ground extends.

6, ladder device as claimed in claim 3, it is characterized in that: a part that is arranged on the dead eye on the described holding components is to outside opening, by described opening, the axial region of described slide unit inserts in the described dead eye, described keeper is installed in the front end of described axial region simultaneously, integrally is provided for the removal stop section that prevents that axial region from deviating from from described dead eye on described holding components.

7, ladder device as claimed in claim 5, it is characterized in that: described ladder portion comprises: be connected the handrail on the ladder column and have the installing hole that described handrail one end can be inserted and described winding mechanism can be received and be contained in inner lid, by an end that is used for the front end that described lid is fixed on the fixture on the ladder column is locked in the described handrail of the installing hole that inserts described lid, described lid and handrail are fixed on the ladder column.

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